CN112022284B - Clip application aid for laparoscopic surgery - Google Patents

Abstract

The invention discloses an auxiliary device for clamping for endoscopic surgery, which includes a clamp head assembly and an operating assembly. The opening and closing of the clamp head assembly is controlled by the operating assembly. The operating assembly includes a clamping device for continuing to maintain the position after being positioned at a predetermined position. A clamping part that clamps and stays at a predetermined position, and an operating part that is used to remove the clamping part to make room for the operation after the clamping part stably holds the predetermined position. The clamping part and the operating part are connected by a linkage structure. Connected and linked; the clamping part is provided with a support component that is deployed through control to support tissues and organs and thereby assist in revealing the surgical field; the clamping part is connected to the support component and the operating part controls the clamping part to drive the movement of the support component to achieve support To expand or retract the component, either the operating part is connected to and controls the expansion or retraction of the support component, or the support component is provided with a control device for controlling the expansion or retraction of the support component. During the entire operation, there is less interference and high operating efficiency.

Description

Clip application aid for laparoscopic surgery

Technical field

The present invention relates to the technical field of medical devices, and in particular, to a clipping auxiliary device for supporting/traction of tissues/organs, etc. in the body under endoscopic surgery to assist in exposing the surgical field.

Background technique

Compared with open surgery, laparoscopic surgery has the advantages of less trauma, less risk of incision infection and non-healing, fast postoperative recovery, and small and hidden scars after healing, and is widely used in the field of surgery.

Due to the small incision in laparoscopic surgery, the exposure of the surgical site cannot be assisted by various retractors like open surgery. Instead, the patient can only rely on changing the patient's position or using clamp instruments to clamp or push and pull the tissue/organ from the puncture channel.

In order to solve the problem of exposure of the surgical site during laparoscopic surgery, Chinese invention patent CN 107997792 A discloses a single-hole laparoscopic liver removal device, which includes an operating rod, a plurality of sectors connected to one end of the operating rod, and a device arranged on the other side of the operating rod. A control component and handle on one end. When in use, hold the handle of the device and use the control component to control the opening, closing and bending of the fan blades to achieve traction on the liver to assist in completing the surgery. Obviously, although the above-mentioned device also solves the problem of exposure of the surgical site to a certain extent, it requires continuous operation by the surgeon or assistant when achieving traction. Mutual interference between multiple people/instruments will still occur and the operation will be limited. issues such as operating space.

Therefore, during laparoscopic surgery, multiple people are usually required to assist, causing mutual interference and waste of manpower. In addition, the clamping instruments occupy the surgical operating space and will block the surgical site to a certain extent. At the same time, it will also cause Surgical interference.

Contents of the invention

The invention provides an auxiliary device for clamping for laparoscopic surgery to solve the problem that the existing single-hole laparoscopic liver removal device requires multiple people to operate and will interfere with each other; the device itself will also cause damage to the surgical site. Technical problems that create occlusion and interfere with surgery.

The present invention provides a clamping auxiliary device for laparoscopic surgery, which is used to support and/or traction tissues and organs to assist in exposing the surgical field. It includes a clamp head assembly and an operating assembly. The operating assembly controls the opening of the clamp head assembly. The operating assembly includes a clamping part for continuing to hold and stay at the predetermined position after the clamping part is positioned at a predetermined position, and a clamping part for removing the clamping part to allow operation after the clamping part stably holds the predetermined position. The operating part of the space, the clamping part and the operating part are connected and linked through a linkage structure; the clamping part is provided with a support component that is deployed through control to support tissues and organs and thereby assist in revealing the surgical field; the clamping part is connected to the support The operating part controls the clamping part to drive the movement of the support component to realize the expansion or retraction of the support component, or the operating part is connected to and controls the expansion or retraction of the support component, or the support component is provided with a control device for controlling the expansion or retraction of the support component. .

Further, the clamp head assembly includes a first clamp head and a second clamp head, the clamping part includes a first operating rod and a second operating rod, the first clamp head is hinged with the second clamp head and the first operating rod respectively, and the second clamp head The clamp head is fixedly connected to the second operating rod, the first operating rod and the second operating rod are arranged in parallel, and the first operating rod moves axially relative to the second operating rod to push the first clamp head to rotate around the second clamp head to Realize the engagement or opening of the first plier head and the second plier head.

Further, the operating part includes a third operating lever, a fourth operating lever, a first handle and a second handle. The first handle is hingedly connected to the second handle and the third operating lever respectively, and the fourth operating lever is fixedly connected to the second handle. , the first handle rotates relative to the second handle and drives the third operating rod to move axially, and the third operating rod drives the first operating rod to move axially, thereby realizing the bite or opening of the first plier head and the second plier head.

Furthermore, there is also a buckle between the first handle and the second handle for positioning the relative movement between the first handle and the second handle, and a buckle for increasing the control touch of the relative movement between the first handle and the second handle. Support shrapnel.

Further, the linkage structure includes a first hook provided at the rod end of the first operating rod, a second hook provided at the rod end of the second operating rod, and a first hook provided at the rod end of the third operating rod along the radial direction of the third operating rod. The card slot, the second card slot opened at the end of the fourth operating rod along the radial direction of the fourth operating rod, and the lock hinged on the second operating rod, the first operating rod passes between the second operating rod and the lock The through hole is connected by the first hook and assembled in the first slot of the third operating lever so that the first operating lever and the third operating lever are coaxially assembled, and the second operating lever is connected and assembled in the third operating lever by the second hook. In the second slot of the four operating rods, the second operating rod and the fourth operating rod are coaxially assembled, and the lock buckle is rotated and engaged at the connection part of the clamping part and the operating part so that the first hook and the connecting part after assembly are connected. The first latching groove, the second latching hook and the second latching groove are latched into the inner cavity of the lock, thereby achieving a linkage connection between the clamping part and the operating part.

Further, a positioning rack and a pawl are respectively provided between the first operating lever and the second operating lever. The pawl is connected to the lock and linked with the lock; the lock is rotated and engaged between the clamping part and the operating part. The connection part makes the pawl disengage from the positioning rack, thereby linking the operating part and the clamping part; the lock rotates away from the connection part between the clamping part and the operating part and causes the pawl to press against the positioning rack, thereby locking The relative movement between the first operating rod and the second operating rod facilitates the removal of the operating part from the clamping part without affecting the engagement of the first plier head and the second plier head.

Further, the support assembly includes a support rod, a transmission rod, a guide groove and a lever. The guide groove is opened on the second operating rod. The ends of the multiple support rods intersect and the intersection parts are jointly hinged and assembled on the second operating rod. The free end of the rod is arranged toward the direction of the clamp head assembly, and the plurality of transmission rods and the plurality of support rods are arranged in one-to-one correspondence. The first end of the transmission rod is hingedly connected to the side wall of the corresponding support rod, and the second end of the plurality of transmission rods is They are hingedly connected to each other and combined to form a hinged slider. The hinged slider is slidingly connected in the guide groove. The hinged slider is moved from the initial position of the guide groove to the end position by pushing the lever to push the support rod to expand outward through the transmission rod. To support the tissues and organs, the support rod moves the hinged slider from the end position of the guide groove to the initial position through the lever and pulls the support rod inwards through the transmission rod.

Further, the support rod is covered with a flexible film, and the flexible film is provided with creases that fold when the support rod is folded.

Further, the support assembly includes a support rod, a transmission rod, a guide groove and a lever. The guide groove is opened on the second operating rod. The ends of the multiple support rods intersect and the intersection parts are jointly hingedly assembled on the second operating rod. The support rod The free end of the transmission rod is arranged toward the direction of the operating part. Multiple transmission rods and multiple support rods are arranged in one-to-one correspondence. The first end of the transmission rod is hingedly connected to the free end of the corresponding support rod. The second ends of the multiple transmission rods are hingedly connected to each other. The hinged slider is connected and combined to form a hinged slider. The hinged slider is slidingly connected in the guide groove. The hinged slider is moved from the initial position of the guide groove to the end position by pushing the lever to push the support rod outward through the transmission rod to realize the support rod. To support tissues and organs, the hinged slider is moved by the lever to move from the end position of the guide groove to the initial position, and the support rod is pulled inward by the transmission rod.

Further, the second operating rod is also provided with a guide sleeve, the first operating rod is passed through the guide sleeve, and the axial movement of the first operating rod relative to the second operating rod is guided through the guide sleeve; and/or the third operating rod is provided with a guide sleeve. The four operating rods are also provided with guide sleeves, and the third operating rod is passed through the guide sleeves. The guide sleeve guides the axial movement of the third operating rod relative to the fourth operating rod.

The invention has the following beneficial effects:

The clipping auxiliary device for laparoscopic surgery of the present invention controls the opening and closing operation of the forceps assembly through the operating component, thereby realizing clamping and fixing of the lesion; the operating component is composed of a clamping part and an operating part. When the clamping part stably clamps the lesion, the operating part can be removed from the clamping part by disassembling the linkage structure, thereby preventing the exposed operating part from blocking the puncture channel opened on the body surface and allowing for surgery outside the body. The operating space prevents the clipping auxiliary device from interfering with the operation of other surgical instruments outside the patient's body; after removing the operating part, the support component can be operated and controlled to expand the support component and support the tissues and organs around the puncture channel, making the puncture channel Keep it open and reveal the predetermined position to facilitate subsequent surgical operations. The entire structure is simple. A single person can perform clamping and fixation, dismantling and taking away the operating part, supporting tissues and organs, and exposing the surgical site with one device, thereby facilitating subsequent laparoscopic surgery on the exposed surgical site. and other work; during the entire operation, there is less interference and high operating efficiency.

There are at least three ways to control the expansion or retraction of the support component: First, the control end of the support component is connected to the moving part of the clamping part, and the support is triggered during the clamping or loosening movement of the clamping part through the operating part. The control end of the component to expand or collapse the support component. Second, the control end of the operating part is connected to the control end of the support component, and the expansion or retraction of the support component is directly controlled through the operating part. The third type is that the control end of the support component is provided with a separate control device, and the expansion or retraction of the support component can be controlled at any time through the control device. Different structural connection relationships and control methods can be used as needed to realize the expansion or retraction of the support assembly, and the expansion or retraction control process of the support assembly and the opening and closing process of the clamp head assembly and the device of the operating part and the clamping part The premise is that the processes do not interfere with or hinder each other.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the drawings.

Description of the drawings

The drawings forming a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 is a schematic structural diagram of a clip application auxiliary device for laparoscopic surgery according to a preferred embodiment of the present invention;

Figure 2 is a schematic structural diagram of the linkage structure in a disassembled state according to the preferred embodiment of the present invention;

Figure 3 is a structural schematic diagram of the combined state of the linkage structure according to the preferred embodiment of the present invention;

Figure 4 is a schematic structural diagram of the unfolded state of the fan-shaped support assembly according to the preferred embodiment of the present invention;

Figure 5 is a schematic structural diagram of the connecting rod support assembly in an unfolded state according to the preferred embodiment of the present invention.

illustration:

1. Clamp head assembly; 101. First clamp head; 102. Second clamp head; 2. Operating component; 201. Clamping part; 2011. First operating lever; 2012. Second operating lever; 202. Operating part; 2021. Third operating lever; 2022. Fourth operating lever; 2023. First handle; 2024. Second handle; 2025. Closure; 2026. Support shrapnel; 3. Linkage structure; 301. First hook; 302. Second hook; 303, first slot; 304, second slot; 305, lock; 4, support component; 401, support rod; 402, transmission rod; 403, guide groove; 404, lever; 405 , hinged slider; 406, flexible film; 5. positioning rack; 6. pawl.

Detailed ways

The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

Figure 1 is a schematic structural diagram of a clipping auxiliary device for laparoscopic surgery according to a preferred embodiment of the present invention; Figure 2 is a schematic structural diagram of a linkage structure in a disassembled state according to a preferred embodiment of the present invention; Figure 3 is a schematic diagram of the linkage structure according to a preferred embodiment of the present invention. Figure 4 is a schematic structural view of the fan-shaped support assembly in the unfolded state according to the preferred embodiment of the present invention; Figure 5 is the structural schematic view of the connecting rod-type support assembly in the unfolded state according to the preferred embodiment of the present invention.

As shown in Figure 1, the clamping auxiliary device for laparoscopic surgery of this embodiment is used to support and/or traction tissues and organs to assist in exposing the surgical field, and includes a clamp head assembly 1 and an operating assembly 2. By operating Component 2 controls the opening and closing of the pliers assembly 1. The operating component 2 includes a clamping part 201 for continuing to clamp and stay at the predetermined position after the clamping part 201 is positioned at a predetermined position, and a clamping part 201 for stably clamping the predetermined position. After the position, the operating part 202 is removed from the clamping part 201 to make way for the operating space. The clamping part 201 and the operating part 202 are connected and linked through the linkage structure 3; the clamping part 201 is provided with a device for unfolding through control. The support component 4 supports the tissues and organs and assists in exposing the surgical field of view; the clamping part 201 is connected to the support component 4 and the operating part 202 controls the clamping part 201 to drive the support component 4 to move to realize the expansion or contraction of the support component 4, or the operating part 202 is connected to and controls the expansion or retraction of the support assembly 4, or the support assembly 4 is provided with a control device for controlling the expansion or retraction of the support assembly 4. The clipping auxiliary device for laparoscopic surgery of the present invention controls the opening and closing operations of the forceps assembly 1 through the operating component 2, thereby clamping and fixing the lesion; the operating component 2 consists of a clamping part 201 and an operating part 202 It is composed of two parts. When the clamping part 201 stably clamps the lesion, the operating part 202 can be removed from the clamping part 201 by disassembling the linkage structure 3, thereby preventing the exposed operating part 202 from blocking the opening on the body surface. puncture channel, while leaving the surgical operating space outside the body to prevent the clipping auxiliary device from interfering with the operation of other surgical instruments outside the patient's body; after removing the operating part 202, the support component 4 can be deployed by operating and controlling the support component 4 It also supports the tissues and organs surrounding the puncture channel to keep the puncture channel open and reveal the predetermined position to facilitate subsequent surgical operations. The entire structure is simple. A single person can perform clamping and fixation, dismantle and take away the operating part 202, support tissues and organs, and expose the surgical site using one device, thereby facilitating subsequent endoscopic examination of the exposed surgical site. Surgery and other work; during the entire operation process, there is less interference and high operating efficiency. There are at least three ways to control the expansion or retraction of the support component 4: First, the control end of the support component 4 is connected to the moving part of the clamping part 201, and the clamping part 201 is controlled to clamp or loosen through the operating part 202. During the movement, the control end of the support assembly 4 is triggered to realize the expansion or contraction of the support assembly 4; secondly, a separate control device is provided on the control end of the support assembly 4, and the expansion or contraction of the support assembly 4 can be controlled at any time through the control device. Collapse; third, the control end of the operating part 202 is connected to the control end of the support component 4, and the expansion or collapse of the support component 4 is directly controlled through the operating part 202; different structural connection relationships and control methods can be used as needed to achieve The expansion or retraction of the support assembly 4 is based on the premise that the control process of the expansion or retraction of the support assembly 4, the opening and closing process of the clamp head assembly 1, and the installation process of the operating part 202 and the clamping part 201 do not interfere with or hinder each other. The predetermined position refers to the position preset before laparoscopic surgery; when the clamping auxiliary device is working, the forceps head assembly 1 passes through the puncture channel and is clamped on the predetermined tissue (such as the peritoneum) at the predetermined position. Through the forceps head assembly 1 and The clamping connection of the predetermined tissue provides an inner end support point for the support assembly 4; another support point of the clamping auxiliary device is the tail end of the clamping portion 201, which is supported on the body surface of the puncture channel. Optionally, there are two ways to control the expansion and retraction of the support assembly 4. The first is that the expansion or retraction of the support assembly 4 is also controlled by the operating part 202. The expansion state of the support assembly 4 is before/again when the operating part 202 is disassembled. After connection, the folded state of the support component 4 is at the same time as the jaws are opened; the second method is that the support component 4 has a separate control device, the operating part 202 is removed from the clamping part 201, and the support component 4 is controlled by the control device. After the operation is completed, the support assembly 4 is controlled by the control device to be folded, and the operating part 202 is assembled to the clamping part 201.

As shown in Figure 1, in this embodiment, the clamp head assembly 1 includes a first clamp head 101 and a second clamp head 102. The clamping part 201 includes a first operating rod 2011 and a second operating rod 2012. The first clamp head 101 Hinged to the second clamp head 102 and the first operating rod 2011 respectively, the second clamp head 102 is fixedly connected to the second operating rod 2012, the first operating rod 2011 and the second operating rod 2012 are arranged in parallel, and the first operating rod 2011 is opposite The second operating rod 2012 moves axially to push the first pliers 101 to rotate around the second pliers 102 to realize the engagement or opening of the first pliers 101 and the second pliers 102 . The second clamp head 102 is hinged to the end of the first clamp head 101. The first operating rod 2011 is hinged to a position on the first clamp head 101 away from the end. The two hinge points are axially displaced relative to the first operating rod 2011. The arrangement is such that when the first operating rod 2011 moves axially, it can push the first clamp head 101 to rotate around the second clamp head 102 without causing movement obstruction. Optionally, the first plier head 101 and the second plier head 102 are matched with each other by matching jaw teeth.

As shown in Figure 1, in this embodiment, the operating part 202 includes a third operating lever 2021, a fourth operating lever 2022, a first handle 2023 and a second handle 2024. The first handle 2023 is connected to the second handle 2024 and the third handle respectively. The operating lever 2021 is hingedly connected, the fourth operating lever 2022 is fixedly connected to the second handle 2024, the first handle 2023 rotates relative to the second handle 2024 and drives the third operating lever 2021 to move axially, and the third operating lever 2021 drives the first operation The rods 2011 are axially linked to realize the engagement or opening of the first pliers 101 and the second pliers 102 . The third operating rod 2021 is assembled to the first operating rod 2011 and is axially linked with the first operating rod 2011. The fourth operating rod 2022 is assembled to the second operating rod 2012 and is axially linked with the second operating rod 2012 .

As shown in Figure 1, in this embodiment, there is also a buckle 2025 between the first handle 2023 and the second handle 2024 for relative movement positioning between the first handle 2023 and the second handle 2024 and for adding the first The relative motion between the handle 2023 and the second handle 2024 is controlled by a support elastic piece 2026 that senses touch. Optionally, the snap 2025 is fixed on the second handle 2024 and extends toward the first handle 2023. The snap 2025 on the second handle 2024 engages with the fixed teeth on the first handle 2023 to achieve positioning prevention. By exerting force on the buckle 2025, the buckle 2025 is separated from the fixed teeth, thereby releasing the positioning between the first handle 2023 and the second handle 2024. Optionally, the first handle 2023 and/or the second handle 2024 are provided with a loop handle that is looped around the fingers or a protruding handle that the fingers overlap to facilitate force application. Optionally, a waist-shaped hole and a pin are used between the first handle 2023 and the third operating lever 2021 to achieve hinge. During the rotation of the first handle 2023, the pin slides in the waist-shaped hole to reduce the force exerted on the third operating lever. The radial force on the operating rod 2021 reduces the radial force and radial deformation probability of the third operating rod 2021.

As shown in Figures 1, 2 and 3, in this embodiment, the linkage structure 3 includes a first hook 301 provided at the end of the first operating lever 2011 and a second hook 302 provided at the end of the second operating lever 2012. , the first slot 303 opened at the rod end of the third operating rod 2021 along the radial direction of the third operating rod 2021, the second slot 304 opened at the rod end of the fourth operating rod 2022 along the radial direction of the fourth operating rod 2022, and the hinge Regarding the lock 305 on the second operating lever 2012, the first operating lever 2011 passes through the through hole between the second operating lever 2012 and the lock 305 and is connected to the third operating lever 2021 through the first hook 301. In a slot 303, the first operating rod 2011 and the third operating rod 2021 are coaxially assembled, and the second operating rod 2012 is connected and assembled in the second slot 304 of the fourth operating rod 2022 through the second hook 302, so that the first operating rod 2011 and the third operating rod 2021 are coaxially assembled. The second operating lever 2012 and the fourth operating lever 2022 are coaxially assembled, and the lock 305 is rotated and engaged at the connection portion of the clamping part 201 and the operating part 202 to connect the first hook 301 and the first slot 303 after assembly. And the second hook 302 and the second slot 304 are locked in the inner cavity of the lock 305, thereby realizing the linkage connection between the clamping part 201 and the operating part 202. Optionally, the linkage structure 3 includes a first hook 301 provided at the rod end of the third operating rod 2021, a second hook 302 provided at the rod end of the second operating rod 2012, and a second hook 302 provided at the rod end of the first operating rod 2011 along the radial direction of the first operating rod 2011. A first slot 303 at the end of an operating lever 2011, a second slot 304 opened at the end of the fourth operating lever 2022 along the radial direction of the fourth operating lever 2022, and hinged to the second operating lever 2012 or the fourth operating lever 2022. The lock 305. Optionally, the linkage structure 3 includes a first hook 301 provided at the rod end of the third operating rod 2021, a second hook 302 provided at the rod end of the fourth operating rod 2022, and a second hook 302 provided at the rod end of the first operating rod 2011 along the radial direction of the first operating rod 2011. A first slot 303 at the rod end of an operating rod 2011, a second slot 304 opened at the rod end of the second operating rod 2012 along the radial direction of the second operating rod 2012, and hinged to the second operating rod 2012 or the fourth operating rod 2022. The lock 305. Optionally, the linkage structure 3 includes a first hook 301 provided at the rod end of the first operating rod 2011, a second hook 302 provided at the rod end of the fourth operating rod 2022, and a second hook 302 provided at the rod end of the third operating rod 2021 along the radial direction of the third operating rod 2021. The first slot 303 at the rod end of the three operating rods 2021, the second slot 304 opened at the rod end of the second operating rod 2012 along the radial direction of the second operating rod 2012, and hinged to the second operating rod 2012 or the fourth operating rod 2022 The lock 305. Optionally, the lock 305 can also be hinged on the first operating lever 2011 or the third operating lever 2021. Optionally, the first hook 301 at the rod end of the first operating rod 2011 and the first slot 303 at the rod end of the third operating rod 2021 can be exchanged with each other; the second hook 302 at the rod end of the second operating rod 2012 and the fourth operating rod The second slots 304 on the rod end of 2022 can also be exchanged with each other. Optionally, the lock 305 can be hinged to the first operating lever 2011, and accordingly the second operating lever 2012 is passed between the lock 305 and the first operating lever 2011; or the lock 305 can be hinged to the second operating lever. 2012, correspondingly the first operating lever 2011 is inserted between the lock 305 and the second operating lever 2012; or the lock 305 can be hinged to the third operating lever 2021, and correspondingly the fourth operating lever 2022 is inserted through the lock. between the buckle 305 and the third operating rod 2021; or the lock 305 can be hinged to the fourth operating rod 2022, and accordingly the third operating rod 2021 is inserted between the lock 305 and the fourth operating rod 2022.

As shown in Figure 1, in this embodiment, a positioning rack 5 and a pawl 6 are respectively provided between the first operating lever 2011 and the second operating lever 2012. The pawl 6 is connected to the lock 305 and connected with the lock. 305 linkage. Optionally, the positioning rack 5 is provided on the first operating lever 2011, and the pawl 6 is provided on the second operating lever 2012. Optionally, the positioning rack 5 is provided on the second operating lever 2012, and the pawl 6 is provided on the first operating lever 2011. The lock 305 is rotated and engaged at the connection part between the clamping part 201 and the operating part 202 and disengages the pawl 6 from the positioning rack 5 , thereby causing the operating part 202 to interlock with the clamping part 201 . The lock 305 rotates away from the connection between the clamping part 201 and the operating part 202 and causes the pawl 6 to press against the positioning rack 5, thereby locking the relative movement between the first operating rod 2011 and the second operating rod 2012. This is to facilitate the removal of the operating part 202 from the clamping part 201 without affecting the engagement of the first pliers 101 and the second pliers 102 . Optionally, the linkage method between the pawl 6 and the lock 305 can be: the pawl 6 and the lock 305 are connected as a whole; or the pawl 6 and the lock 305 are engaged and connected; or the lock 305 moves and pushes in the direction of the pawl 6 The pawl 6 moves and moves away from the pawl 6 and pulls the pawl 6 to move.

As shown in Figures 1 and 4, in this embodiment, the support assembly 4 includes a support rod 401, a transmission rod 402, a guide groove 403 and a lever 404. The guide groove 403 is opened on the second operating rod 2012. Multiple support rods The ends of 401 intersect and the intersection parts are jointly hingedly assembled on the second operating rod 2012. The free end of the support rod 401 is arranged toward the direction of the clamp head assembly 1. Multiple transmission rods 402 and multiple support rods 401 are arranged in one-to-one correspondence. The first end of the rod 402 is hingedly connected to the side wall of the corresponding support rod 401. The second ends of the plurality of transmission rods 402 are hingedly connected to each other and combined to form a hinged slider 405. The hinged slider 405 is slidably connected in the guide groove 403. The hinged slider 405 is moved from the initial position of the guide groove 403 to the end position by the lever 404 to push the support rod 401 to expand outward through the transmission rod 402 to realize the support of the tissues and organs by the support rod 401. The hinged slider 405 moves from the end position of the guide groove 403 to the initial position to pull the support rod 401 inwards through the transmission rod 402 .

As shown in FIGS. 1 and 4 , in this embodiment, the support rod 401 is covered with a flexible film 406 , and the flexible film 406 is provided with creases that are folded and folded along with the support rod 401 . This allows the support rods 401 to elastically contact the tissues and organs through the flexible film 406 to avoid rigid contact damage to the tissues and organs during the contact process. Creases are provided on the flexible film 406 to limit the unfolding and shrinking movement directions of the flexible film 406 . The guide groove 403 is arranged vertically. The guide groove 403 includes a first V groove and a second V groove. The second V groove is located in the first V groove, and the freedom of the second V groove is the same as the freedom of the first V groove on the corresponding side. The two ends are connected to form a closed double V closed groove, as shown in Figure 4 and Figure 5. When in use, the clamp head assembly 1 of the clamping auxiliary device is in a clamping state and extends into the puncture channel. At this time, the support assembly 4 is in a retracted state, and the operating part 202 is used to control the clamp head assembly 1 to open and clamp at a predetermined position. According to the predetermined structure, during this action process of the first operating lever 2011, the lever 404 moves forward with the first operating lever 2011 and crosses the hinged slider 405 and then retreats to push the hinged slider 405 to move from the groove angle of the first V-groove and into the second V-groove. The groove corner position of the V-groove (that is, from the initial position to the end position), and then the transmission rod 402 pulls the support rod 401 to expand; when the operation is completed, the operating part 202 controls the clamp head assembly 1 to open and release the predetermined tissue and then withdraws a certain distance And in the clamping state, during this action, the first operating lever 2011 causes the lever 404 to move forward along with the first operating lever 2011 to cross the hinged slider 405 and then retreat to push the hinged slider 405 to rotate from the slot angle of the second V-groove. Move and enter the lower linear groove section of the first V groove, and the elastic force of the flexible film 406 or surrounding tissue cells pushes the support rod 401 to close, so as to pull the hinged slider 405 to enter along the lower linear groove section of the first V groove. The groove angle of the first V-groove (ie, from the end position to the initial position) facilitates the removal of the entire clip application auxiliary device from the puncture channel.

As shown in Figure 5, in this embodiment, the support assembly 4 includes a support rod 401, a transmission rod 402, a guide groove 403 and a lever 404. The guide groove 403 is opened on the second operating rod 2012. The ends of the multiple support rods 401 The intersecting and intersecting parts are hingedly assembled on the second operating rod 2012. The free end of the support rod 401 is arranged toward the operating part 202. The plurality of transmission rods 402 and the plurality of support rods 401 are arranged in one-to-one correspondence. The first part of the transmission rod 402 The end is hingedly connected to the free end of the corresponding support rod 401, and the second ends of the plurality of transmission rods 402 are hingedly connected to each other and combined to form a hinged slider 405. The hinged slider 405 is slidably connected in the guide groove 403, and is dialed through the lever 404. The hinged slider 405 moves from the initial position of the guide groove 403 to the end position to push the support rod 401 to expand outward through the transmission rod 402 to realize the support of the support rod 401 to the tissues and organs. The hinged slider 405 is moved by the lever 404. The end position of the guide groove 403 moves to the initial position to pull the support rod 401 inwards through the transmission rod 402 . The fixed hinge and the movable hinge of the connecting rod are fully utilized to realize the outward expansion movement and the inward contraction movement of the support rod 401.

In this embodiment, the second operating rod 2012 is also provided with a guide sleeve. The first operating rod 2011 is inserted into the guide sleeve. The guide sleeve allows the axial movement of the first operating rod 2011 relative to the second operating rod 2012 to be carried out. Guide, through the guide sleeve, the radial movement of the first operating rod 2011 relative to the second operating rod 2012 is limited, and at the same time, the first operating rod 2011 is guided to only move in the axial direction; and/or the fourth operating rod 2022 is also provided with a guide sleeve , the third operating rod 2021 is disposed in the guide sleeve, and the guide sleeve guides the axial movement of the third operating rod 2021 relative to the fourth operating rod 2022, and the guide sleeve limits the movement of the third operating rod 2021 relative to the fourth operating rod. The radial movement of the rod 2022 simultaneously guides the first operating rod 2011 to only make axial movement.

During implementation, a device for supporting/traction of tissues/organs such as the liver to assist in exposing the surgical field during laparoscopic surgery (an auxiliary clip application device for laparoscopic surgery) is provided, which is easy to operate and does not require additional intervention after the device is placed. This can achieve continuous support for the target tissue, and the handle part (operating part 202) of the device can be freely disassembled to reduce interference with other surgical instruments.

As shown in Figure 1, the clamping auxiliary device for laparoscopic surgery includes a forceps assembly 1, a locking structure (positioning rack 5 and pawl 6), an operating assembly 2, and a holding part (first handle 2023 and second handle 2023). The handle 2024), the support assembly 4, and the operating assembly 2 include a clamping part 201 and an operating part 202.

Among them, the clamp head assembly 1 includes a first clamp head 101 and a second clamp head 102. The first clamp head 101 is hinged with the second clamp head 102 and the first operating rod 2011 respectively. The second clamp head 102 is hinged with the second operating rod 2012. Fixed connection; the jaw areas of the first clamp head 101 and the second clamp head 102 are provided with matching clamp teeth.

As shown in Figure 4, the support assembly 4 includes a support rod 401 and a transmission rod 402. The support rod 401 is hinged with the transmission rod 402 and the second operating rod 2012 respectively. The first operating rod 2011 is provided with an adjustable lever 404. The second operating rod 2012 is provided with a guide groove 403. The guide groove 403 includes a first blocking position and a second blocking position. The free end of the transmission rod 402 is located in the guide groove 403. As the first operating rod 2011 and the second operating rod 2012 The axial relative movement of the lever 404 can be controlled to move the free end of the transmission rod 402 along the first trajectory from the first blocking position to the second blocking position (the support part is in an open state), or the free end of the transmission rod 402 can be moved away from the second locking position and under the action of the pre-contraction force of the support rod 401, retreats to the first locking position along the second trajectory (the support rod 401 is in a folded state), thereby achieving support for a larger contact range of target tissues such as the liver, assisting Exposure of the surgical field in the target area; the support rod 401 is hinged with the transmission rod 402 and the second operating rod 2012 at its end position, and the support rod 401 opens in a fan shape during use. Optionally, the support rod 401, the transmission rod 402, and the second operating rod 2012 can be hinged at their ends and tops respectively, as shown in Figure 5; multiple support rods 401 or between the support rod 401 and the transmission rod 402 can be included Covered with a flexible film 406 to achieve a larger area of contact and support between the support rod 401 and the liver or other tissues. The flexible film 406 includes a preset folded state and an unfolded state when the support rod 401 and the transmission rod 402 are opened;

As shown in Figure 1, the locking structure includes a pawl 6 located on the first operating lever 2011 and a plurality of axially distributed positioning teeth (combined to form a positioning rack 5) located on the second operating lever 2012. After entering the predetermined position and clamping the target tissue, the component 1 separates the first operating rod 2011 and the third operating rod 2021, as well as the second operating rod 2012 and the fourth operating rod 2022, and removes the device handles (the first handle 2023 and the second handle 2024). , and limit the axial relative movement between the first operating rod 2011 and the second operating rod 2012 to further maintain the first clamp head 101 and the second clamp head 102 in a closed state; the locking of the first clamp head 101 and the second clamp head 102 can be released by turning the pawl 6 The first operating lever 2011 and the second operating lever 2012 are locked and the first clamp head 101 and the second clamp head 102 are released. Optionally, the pawl 6 can be linked with the lock 305 on the fourth operating lever 2022. When the lock 305 is in the buckled position, the pawl 6 is in the released state. When the lock 305 is in the open position, the pawl 6 is in the natural state. Locked status.

The operating component 2 includes a first operating lever 2011 and a second operating lever 2012 at the front end and a third operating lever 2021 and a fourth operating lever 2022 at the rear end. The third operating lever 2021 and the fourth operating lever 2022 can move axially relative to each other respectively; the front end of the operating component 2 is connected to the clamp head assembly 1, and the rear end is connected to the holding part (the first handle 2023 and the second handle 2024); the front end The first operating lever 2011 and the second operating lever 2012 are detachably connected to the third operating lever 2021 and the fourth operating lever 2022 at the rear end respectively through hooks and slots (linkage structure 3) located thereon (see 2 and 3); the linkage structure 3 includes a lock 305 hinged on the fourth operating lever 2022 for connecting the first operating lever 2011 and the second operating lever 2012 to the third operating lever 2021 and the fourth operating lever 2022 After connecting the two pairs respectively, the hoop connection position is prevented to prevent the separation between the first operating lever 2011 and the second operating lever 2012 at the front end and the third operating lever 2021 and the fourth operating lever 2022 at the rear end while retaining the third operating lever at the front end. The axial freedom of movement between the first operating lever 2011 and the second operating lever 2012 and the third operating lever 2021 and the fourth operating lever 2022 at the rear end.

The holding part includes a first handle 2023 and a second handle 2024 that are hingedly connected. Optionally, the grip portion may also include a buckle 2025, which is used to position the opening and closing angles of the first handle 2023 and the second handle 2024, and is further used for the third operating lever 2021 and the fourth operating lever at the rear end. 2022 remains relatively fixed in position after disassembly to facilitate its connection operation with the first operating lever 2011 and the second operating lever 2012 at the front end during reassembly.

Intraoperative operation of clip application devices for laparoscopic surgery:

(1) Assist in exposing the surgical field

When the jaws are closed, the device enters the predetermined position in the patient's body from the puncture channel;

Operate the first handle 2023 and the second handle 2024 to open the jaws, and at the same time control the lever 404 to move the free end of the transmission rod 402 from the first blocking position to the second blocking position along the first trajectory (the support rod 401 is in an open state and locked ); operate the first handle 2023 and the second handle 2024 to close the jaws and clamp the predetermined tissue (such as peritoneum);

Release the lock 305 and separate the first operating lever 2011 at the front and rear ends from the third operating lever 2021 and the second operating lever 2012 from the fourth operating lever 2022, and lock the first operating lever 2011 at the front end through the pawl 6 Between the first operating rod 2012 and the first clamp head 101 and the second clamp head 102, the ends of the front first operating rod 2011 and the second operating rod 2012 are supported on the puncture channel. The clamp head assembly 1, the front first operating rod The ends of the rod 2011 and the second operating rod 2012 form a fulcrum, and the expanded support assembly 4 supports the target tissue (such as the liver) to reveal the field of view of the target area;

(2) Release operation (adjust the clamping position or complete the surgery)

The first operating lever 2011 and the third operating lever 2021 connect the front and rear ends, and the second operating lever 2012 and the fourth operating lever 2022 connect the front and rear ends;

Close the lock 305 and release the pawl 6 to release the lock between the first operating lever 2011 and the second operating lever 2012 at the front end and the first clamp head 101 and the second clamp head 102;

Operate the first handle 2023 and the second handle 2024 to open the jaws. At the same time, the lever 404 moves the hinge point of the transmission rod 402 away from the second blocking position. Under the action of the pre-shrinkage force of the support rod 401, the free end of the transmission rod 402 moves along the second locking position. The trajectory returns to the first blocking position (the support rod 401 is in a folded state); operate the first handle 2023 and the second handle 2024 to close the jaws and withdraw the device from the puncture channel.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (7)

1. A clamping auxiliary device for laparoscopic surgery, used to support and/or traction tissues and organs to assist in exposing the surgical field, including a clamp head assembly (1) and an operating assembly (2). Through the operation The component (2) controls the opening and closing of the clamp head component (1), It is characterized by: The operating component (2) includes a clamping part (201) for continuing to clamp and stay at the predetermined position after the clamping part (201) is positioned at a predetermined position, and a clamping part (201) for stably clamping the predetermined position. and then remove the operating part (202) from the clamping part (201) to make way for the operating space, The clamping part (201) and the operating part (202) are connected and linked through a linkage structure (3); The clamping part (201) is provided with a support component (4) that is controlled to be deployed to support tissues and organs and thereby assist in exposing the surgical field; The clamping part (201) is connected to the support component (4), and the operating part (202) controls the clamping part (201) to drive the support component (4) to move to achieve the support component (4). to expand or retract, or the operating part (202) is connected to and controls the expansion or retraction of the support assembly (4), or the support assembly (4) is provided with a control for controlling the expansion or retraction of the support assembly (4). device; The clamp head assembly (1) includes a first clamp head (101) and a second clamp head (102), and the clamping part (201) includes a first operating lever (2011) and a second operating lever (2012), The first clamp head (101) is hinged with the second clamp head (102) and the first operating lever (2011) respectively, and the second clamp head (102) is hinged with the second operating lever (2012). ) are fixedly connected, the first operating rod (2011) and the second operating rod (2012) are arranged in parallel, and the first operating rod (2011) is axially aligned with the second operating rod (2012) Move and push the first clamp head (101) to rotate around the second clamp head (102) to achieve the engagement or opening of the first clamp head (101) and the second clamp head (102); The operating part (202) includes a third operating lever (2021), a fourth operating lever (2022), a first handle (2023) and a second handle (2024). The first handle (2023) is respectively connected with the The second handle (2024) is hingedly connected to the third operating lever (2021), the fourth operating lever (2022) is fixedly connected to the second handle (2024), and the first handle (2023) is The second handle (2024) rotates and drives the third operating lever (2021) to move axially, and the third operating lever (2021) drives the first operating lever (2011) to move axially, thereby achieving the desired The bite or opening of the first clamp head (101) and the second clamp head (102); The linkage structure (3) includes a first hook (301) provided at the rod end of the first operating lever (2011), a second hook (302) provided at the rod end of the second operating lever (2012), The first slot (303) is opened at the rod end of the third operating rod (2021) along the radial direction of the third operating rod (2021), and the first slot (303) is opened at the rod end of the third operating rod (2021) along the radial direction of the fourth operating rod (2022). The second slot (304) on the rod end of the fourth operating lever (2022) and the lock (305) hinged on the second operating lever (2012), the first operating lever (2011) passes through the The through hole between the second operating lever (2012) and the lock (305) is connected to the first slot of the third operating lever (2021) through the first hook (301). (303) so that the first operating lever (2011) and the third operating lever (2021) are coaxially assembled, and the second operating lever (2012) is connected and assembled through the second hook (302) In the second slot (304) of the fourth operating lever (2022) so that the second operating lever (2012) and the fourth operating lever (2022) are coaxially assembled, the lock (305) Rotate and engage the connecting portion of the clamping part (201) and the operating part (202) to connect the first hook (301) and the first slot (303) after assembly. ) and the second hook (302) and the second slot (304) are locked in the inner cavity of the lock (305), thereby realizing the clamping part (201) and the operation The linkage connection between parts (202). 2. The clip application auxiliary device for laparoscopic surgery according to claim 1, characterized in that, There is also a buckle (2025) between the first handle (2023) and the second handle (2024) for relative movement positioning between the first handle (2023) and the second handle (2024). ) and a support elastic piece (2026) used to increase the control touch of relative movement between the first handle (2023) and the second handle (2024). 3. The clip application auxiliary device for laparoscopic surgery according to claim 1, characterized in that, A positioning rack (5) and a pawl (6) are respectively provided between the first operating lever (2011) and the second operating lever (2012), and the pawl (6) is connected to the lock. The buckle (305) is connected with the lock (305); The lock (305) rotates and engages at the connection part between the clamping part (201) and the operating part (202) and disengages the pawl (6) from the positioning rack (5), and then Link the operating part (202) with the clamping part (201); The lock (305) rotates away from the connection between the clamping part (201) and the operating part (202), and the pawl (6) presses against the positioning rack (5), Then, the relative movement between the first operating lever (2011) and the second operating lever (2012) is locked, so that the operating part (202) can be removed from the clamping part (201) without Affecting the engagement of the first pliers (101) and the second pliers (102). 4. The clip application auxiliary device for laparoscopic surgery according to any one of claims 2 to 3, characterized in that, The support assembly (4) includes a support rod (401), a transmission rod (402), a guide groove (403) and a lever (404), The guide groove (403) is opened on the second operating rod (2012). The ends of the plurality of support rods (401) intersect and the intersection parts are jointly hingedly assembled on the second operating rod (2012). , the free end of the support rod (401) is arranged in the direction of the clamp head assembly (1), and a plurality of the transmission rods (402) and a plurality of the support rods (401) are arranged in one-to-one correspondence. The first end of the rod (402) is hingedly connected to the side wall of the corresponding support rod (401), and the second ends of the plurality of transmission rods (402) are hingedly connected to each other and combined to form a hinged slider (405). The hinged slider (405) is slidingly connected in the guide groove (403), The hinged slider (405) is moved by the lever (404) from the initial position of the guide groove (403) to the end position to push the support rod (401) through the transmission rod (402). Expand outward to realize the support of the tissues and organs by the support rod (401), and move the hinged slider (405) from the end position of the guide groove (403) to the initial position through the lever (404). The position is such that the support rod (401) is pulled inward by the transmission rod (402). 5. The clip application auxiliary device for laparoscopic surgery according to claim 4, characterized in that, The support rod (401) is covered with a flexible film (406), and the flexible film (406) is provided with creases that are folded and folded along with the support rod (401). 6. The clip application auxiliary device for laparoscopic surgery according to any one of claims 2 to 3, characterized in that, The support assembly (4) includes a support rod (401), a transmission rod (402), a guide groove (403) and a lever (404), The guide groove (403) is opened on the second operating rod (2012), and the ends of the plurality of support rods (401) intersect and the intersection parts are jointly hingedly assembled on the second operating rod (2012), The free end of the support rod (401) is arranged in the direction of the operating part (202), and a plurality of the transmission rods (402) and a plurality of the support rods (401) are arranged in one-to-one correspondence. The first end of 402) is hingedly connected to the corresponding free end of the support rod (401), and the second ends of the plurality of transmission rods (402) are hingedly connected to each other and combined to form a hinged slider (405). The hinged slider (405) is slidingly connected in the guide groove (403), The hinged slider (405) is moved by the lever (404) from the initial position of the guide groove (403) to the end position to push the support rod (401) through the transmission rod (402). Expand outward to realize the support of the tissues and organs by the support rod (401), and move the hinged slider (405) from the end position of the guide groove (403) to the initial position through the lever (404). The position is such that the support rod (401) is pulled inward by the transmission rod (402). 7. The clip application auxiliary device for laparoscopic surgery according to claim 3, characterized in that, The second operating rod (2012) is also provided with a guide sleeve. The first operating rod (2011) is inserted into the guide sleeve. The guide sleeve allows the first operating rod (2011) to move relative to the third operating rod (2011). The axial movement of the second operating rod (2012) is guided; and/or The fourth operating rod (2022) is also provided with a guide sleeve. The third operating rod (2021) is inserted into the guide sleeve. The guide sleeve allows the third operating rod (2021) to move relative to the third operating rod (2021). The axial movement of the four operating rods (2022) is guided.