CN116687314A - Suction valve and endoscope - Google Patents

Abstract

The present application relates to a suction valve and an endoscope. The suction valve comprises a pipeline and a blocking piece, wherein a linear suction channel is arranged in the pipeline in a penetrating way, two ends of the suction channel are respectively provided with a suction outlet and a suction inlet, the pipeline is also provided with a through groove, the through groove is provided with a communication section and a notch, the communication section is used for communicating the suction outlet with the suction inlet, the notch is used for communicating the outside of the pipeline with the suction outlet, the blocking piece is movably arranged in the through groove through the notch, in a non-suction state, the blocking piece blocks the communication section and communicates the notch with the suction outlet, and in a suction state, the blocking piece opens the communication section and blocks the notch; adopt the straight type suction channel to make the suction route straight and smooth relatively, compare in the complicated suction valve of traditional suction route bending type, can effectively reduce the possibility that suction channel blockked up, and make blood clot, tissue and secretion in the operation in-process more easily suck, thereby reach the effect that reduces the operation degree of difficulty.

Description

Suction valve and endoscope

technical field

The invention relates to the technical field related to endoscopes, in particular to a suction valve and an endoscope.

Background technique

The soft mirror handle of the endoscope is generally equipped with a suction channel, and a suction valve is designed on the suction channel, which is used to attract human body fluids, blood clots and secretions during surgery.

At present, the internal structure and suction channel of the suction valve on the handle of the soft mirror are complicated. On the one hand, the development cost of the suction valve with complex structure is high, and the production and assembly are difficult; on the other hand, the suction channel of the suction valve bends too much, which leads to unsmooth suction, and blockage may occur in actual use. For example, when the suction channel enters the human tissue, it is blocked due to reasons such as blood clots, tissue or sputum, thereby affecting the normal operation of the operation.

Contents of the invention

Based on this, it is necessary to provide a suction valve and an endoscope with a simple structure and less prone to clogging in view of the problems of high development cost, difficult production and assembly, and easy clogging of the current endoscope suction valve.

The application firstly provides a suction valve, which includes a pipeline and a blocking member. A linear suction channel is opened through the pipeline, and the two ends of the suction channel are respectively a suction outlet and a suction inlet. The groove has a communication section and a notch, the communication section is used to communicate the suction outlet with the suction inlet, the notch is used to communicate the outside of the pipeline with the suction outlet, and the barrier A member is movably arranged in the channel through the notch, so that the suction valve has a non-suction state and a suction state. In the non-suction state, the blocking member blocks the communication section and the The notch communicates with the suction outlet, and in the suction state, the blocking member opens the communication section and blocks the notch.

In one of the embodiments, the suction valve further includes a deformable cover covering the outer peripheral surface of the pipeline, the blocking member is fixed on the cover, and the cover covers In the notch, the cover is provided with a non-suction inlet communicating with the notch; in the non-suction state, the non-suction inlet is opened; in the suction state, the cover is deformed to The non-suction inlet is closed.

In one of the embodiments, the blocking member and the cover member are made of the same material, and both are integrally formed.

In one of the embodiments, the outer peripheral surface of the pipe has a sleeve portion, and the cover is arranged on the sleeve portion and snapped into the sleeve portion.

In one of the embodiments, the blocking member is slidably connected in the through groove along the length direction of the through groove, and the blocking member includes a blocking portion and a suction through hole opened along the axial direction of the suction channel; In a non-suction state, the suction through hole is located in the notch; in a suction state, the suction through hole communicates with the suction channel.

In one of the embodiments, the blocking member further includes an extruding part; in a suction state, the extruding part is in close contact with the outer peripheral surface of the pipe to block the notch.

In one of the embodiments, the outer peripheral surface of the pipe is protruded with a sleeve portion, and the extruded portion is stepped, so as to be in close contact with the outer peripheral surface of the pipe and the sleeve portion respectively in a suction state.

In one of the embodiments, the blocking member further includes a plunger, and the projection of the blocking portion along the axial direction of the channel is located within the projection of the plunger; in the non-suction state, the blocking portion blocks The communication section; in the suction state, the plunger blocks the notch.

In one of the embodiments, an avoidance groove is also opened in the pipeline, and the avoidance groove communicates with the suction passage and is opposite to the through groove, and in the suction state, part of the blocking member is inserted into the avoidance groove. in the slot.

The second aspect of the present application provides an endoscope, including the above suction valve.

The above-mentioned suction valve adopts a straight-line suction channel to make the suction path straight and relatively smooth. Compared with the traditional suction valve with complicated bending of the suction path, it can effectively reduce the possibility of blockage of the suction channel, and make blood clots, Tissues and secretions are easier to suck out, thereby achieving the effect of reducing the difficulty of the operation; in addition, the suction valve of the present application is only composed of two parts, the pipe and the blocking member, the number of parts is relatively small, and the difficulty and cost of assembly, production and maintenance are relatively high. lower.

Description of drawings

Fig. 1 is the schematic diagram of the three-dimensional structure of the suction valve of the present application in a non-suction state;

Fig. 2 is a schematic diagram of the explosion structure of Fig. 1;

Fig. 3 is a schematic cross-sectional structure diagram of the suction valve of the present application along the front view direction in a non-suction state;

Fig. 4 is a schematic cross-sectional structure diagram of the suction valve of the present application along the front view direction in the suction state;

Fig. 5 is a schematic diagram of the explosion structure of Fig. 3;

FIG. 6 is a schematic perspective view of the three-dimensional structure of FIG. 2 at another angle.

Reference signs: 10, pipeline; 11, suction channel; 111, suction outlet; 112, suction inlet; 12, through groove; 121, notch; 122, connecting section; 13, socket part; 131, annular protrusion; 14. Avoidance groove; 15. Connecting plate; 20. Blocking piece; 21. Baffle plate; 211. Suction through hole; 212. Blocking part; 22. Extruding part; 23. Plunger; non-attractive entrance.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

Please refer to Fig. 1 to Fig. 5, this application firstly provides a suction valve, including a pipeline 10 and a blocking member 20, a linear suction channel 11 is opened in the pipeline 10, and the two ends of the suction channel 11 are respectively suction outlets 111 and the suction inlet 112, the pipeline 10 is also provided with a through groove 12, the through groove 12 has a communication section 122 and a notch 121; The outside communicates with the suction outlet 111, and the blocking member 20 is movably arranged in the channel 12 through the notch 121, so that the suction valve has a non-suction state and a suction state; in the non-suction state, the blocking member 20 blocks the communication section 122 and The notch 121 is communicated with the suction outlet 111 , and in the suction state, the blocking member 20 opens the communication section 122 and blocks the notch 121 .

Specifically, a suction device capable of generating negative pressure is connected to the suction outlet 111, and a hose extending into the human body is connected to the suction inlet 112;

In the non-suction state, the blocking member 20 blocks the communication section 122, at this time, external air enters the suction channel 11 from the notch 121 and flows out through the suction outlet 111;

In the suction state, the stopper 20 blocks the notch 121. At this time, blood clots, tissues, and secretions in the human body are sucked into the suction channel 11 through the hose and the suction inlet 112, and then pass through the connecting section 122 and flow out from the suction outlet 111. Suction, so as to achieve the suction function.

In this application, the linear suction channel 11 is adopted to make the suction path straight and relatively smooth. Compared with the traditional suction valve with complicated bending of the suction path, it can effectively reduce the possibility of blockage of the suction channel 11 and prevent blood clots during the operation. , tissues and secretions are easier to suck out, so as to achieve the effect of reducing the difficulty of surgery.

It should be noted that the suction channel 11 in this application is formed in the hard pipe 10, so the shape of the suction channel 11 will not be deformed by external force, thus ensuring a straight and smooth suction path.

In addition, the suction valve of the present application is only composed of the pipe 10 and the blocking member 20, the number of parts is relatively small, and the difficulty and cost of assembly, production and maintenance are relatively low.

Please refer to FIG. 3 and to FIG. 4 , in some embodiments, the suction valve further includes a deformable cover 30 covering the outer peripheral surface of the pipeline 10, the blocking member 20 is fixed on the cover 30, and the cover The shape part 30 covers the notch 121, and the cover part 30 is provided with a non-suction inlet 31 communicating with the notch 121; in the non-suction state, the non-suction inlet 31 is opened; in the suction state, the cover part 30 is deformed Until the non-suction inlet 31 is closed.

The cover design here means that the contact surface between the cover member 30 and the outer peripheral surface of the pipeline 10 is tightly sealed, and air cannot enter the cover member 30 through the contact surface between the cover member 30 and the outer peripheral surface of the pipeline 10 .

Since the stopper 20 is fixed on the cover 30 and the cover 30 is a deformable flexible material, the movement of the stopper 20 relative to the pipeline 10 can be controlled by the cover 30 (the cover 30 can be directly operated by the operator) control, and can also be controlled through other structural relays), during this process, the cover 30 will be deformed to a certain extent, and when the operator no longer exerts force on the cover 30, the cover 30 will act on its own elastic force Lower recovery, and drive stopper 20 to reset;

Therefore, the suction valve of the present application can realize the automatic reset of the blocking member 20 without installing additional reset components, further reducing the number of parts and reducing the production and assembly costs while ensuring the simple operation of the suction valve.

In addition, in the present application, the cover 30 covers the outer peripheral surface of the pipeline 10 and has a non-suction inlet 31. In the non-suction state, the outside air enters the cover 30 through the non-suction inlet 31 and flows along the through groove 12, Sequential flow of suction channels 11 and suction outlets 111;

In the suction state, the cover 30 will be deformed to close the non-suction inlet 31. At this time, the outside air cannot enter the cover 30, and the cover 30 itself will achieve a primary seal. Groove 12 to achieve secondary sealing, through two-stage sealing to increase the sealing effect and avoid air leakage.

Please refer to FIG. 5 , in some embodiments, the barrier 20 and the cover 30 are made of the same material, and the two are integrally formed; that is, the barrier 20 and the cover 30 are an integral part, so the suction valve of the present application The assembly can be completed only by installing the integral part on the pipe 10, which further reduces the number of parts and reduces the cost of production and assembly.

It should be noted that the materials of the blocking member 20 and the cover member 30 may be silicone, rubber or other flexible materials, which are not further limited in this application.

In some other embodiments, the blocking member 20 is detachably fixed to the cover member 30 , so as to facilitate maintenance and replacement of the blocking member 20 or the cover member 30 separately.

Please refer to Fig. 3 and Fig. 4, the outer peripheral surface of the pipe 10 has a sleeve portion 13, and the cover 30 is set on the sleeve portion 13 and is engaged with the sleeve portion 13; compared with other detachable fixing methods, The clamping and fixing operation is simple, which can further reduce the difficulty of assembling the suction valve.

Specifically, the outer peripheral surface of the pipeline 10 has a connecting plate 15, the socket portion 13 is fixed on the connecting plate 15, the side of the socket portion 13 away from the connecting plate 15 has an annular protrusion 131, and the cover 30 can be connected to the socket portion 13. snap-fit, and after the snap-fit, respectively resist the connecting plate 15 and the annular protrusion 131 along the axial direction of the through groove 12; of course, the sleeve portion 13 and the cover-like member 30 can also be snap-fitted in other ways, and the present application does not make further restrictions.

Please refer to FIG. 3 and FIG. 4, in some embodiments, the blocking member 20 is slidably connected in the through groove 12 along the length direction of the through groove 12, the blocking member 20 includes a baffle 21, the baffle 21 includes a blocking portion 212 and The suction through hole 211 opened in the axial direction of the suction channel 11; in the non-suction state, the suction through hole 211 is located in the notch 121; in the suction state, the suction through hole 211 communicates with the suction channel 11.

Specifically, the side of the stopper 20 close to the suction inlet 112 is in close contact with the inner wall of the notch 121, and there is a gap between the side of the stopper 20 near the suction outlet 111 and the inner wall of the notch 121; so that in the non-suction state, the stopper 20 will The suction inlet 112 and the notch 121 are blocked, while the suction outlet 111 and the notch 121 are communicated through the above-mentioned gap; and in the suction state, with the movement of the blocking member 20, the suction through hole 211 moves to face the suction channel 11, thus The suction through hole 211 communicates with the suction channel 11 , that is, the suction inlet 112 communicates with the suction outlet 111 .

The blocking piece 20 is slidably connected with the through groove 12, and cooperates with the suction through hole 211 opened in the blocking piece 20, so that the suction valve can be switched between the non-suction state and the suction state only by pressing the blocking piece 20, and the operation is simple .

In some embodiments, by adopting a design similar to a three-way valve or other corresponding structural designs for the blocking member 20 and the channel 12, the blocking member 20 can also realize the non-suction state and The switching between the attracting states is not further limited in this application.

Please refer to FIG. 3 and FIG. 4 , in some embodiments, the blocking member 20 further includes an extruded part 22 ; in the suction state, the extruded part 22 is in close contact with the outer peripheral surface of the pipe 10 to block the notch 121 .

Specifically, in the non-suction state, outside air enters the notch 121 through the gap between the extrusion part 22 and the outer peripheral surface of the pipe 10, and flows out from the suction outlet 111 after passing through the suction channel 11; while in the suction state, the extrusion part 22 Closely seal with the outer peripheral surface of the pipeline 10 to block the notch 121, outside air cannot enter the pipeline 10 through the notch 121, at this time, under the action of negative pressure at the position of the suction outlet 111, the blood clots, tissues and secretions in the human body etc. are sucked out along the path of the suction inlet 112, the suction channel 11, and the suction outlet 111.

In some embodiments, the extrusion part 22 is made of flexible materials such as silicone or rubber, or a rigid material whose outer surface is coated with a flexible material, so that when the extrusion part 22 is attached to the outer peripheral surface of the pipe 10, the extrusion part 22 can A certain deformation occurs to ensure complete fit with the outer peripheral surface of the pipe 10 , so as to increase the sealing performance between the extruded part 22 and the outer peripheral surface of the pipe 10 .

Please refer to FIG. 3 and FIG. 4, in some embodiments, the outer peripheral surface of the pipe 10 is protruded with a sleeve portion 13, and the extruding portion 22 is stepped, so as to be in a suction state with the outer peripheral surface of the pipe 10 and the sleeve portion. 13 adhere each.

Specifically, the socket part 13 has an opening in the center, and the extruding part 22 has two-stage stepped surfaces. The two-stage stepped surfaces are respectively opposed to the end faces of the pipe 10 and the socket part 13 along the axial direction of the through groove 12, and multi-stage sealing is used to increase the sealing. Effect.

Of course, the extruding part 22 and the sleeve part 13 can also be other structures, as long as they can form a multi-segment bending seal after offsetting the two, so as to achieve the effect of increasing the sealing performance, the application does not make further limitations here.

Please refer to FIG. 3 and FIG. 4, in some embodiments, the blocking member 20 further includes a plunger 23, and the projection of the blocking portion 212 along the axial direction of the channel 12 is located within the projection of the plunger 23; in the non-suction state, The blocking portion 212 blocks the communication section 122 ; in the suction state, the plunger 23 blocks the notch 121 .

Since the projection of the blocking portion 212 along the axial direction of the groove 12 is located within the projection of the plunger 23, that is, the cross-sectional area of the plunger 23 is larger than the cross-sectional area of the blocking portion 212, therefore, when the blocking portion 212 is located in the notch 121, there will be no The notch 121 is blocked, and when the plunger 23 is inserted into the notch 121 , it can be in close contact with the inner wall of the notch 121 , thereby sealing the notch 121 .

In some embodiments, the plunger 23 is made of flexible materials such as silicone or rubber, or a rigid material whose outer surface is covered with a flexible material, so as to ensure that the plunger 23 can be completely attached to the inner wall of the notch 121 to increase the contact between the plunger 23 and the pipeline. 10 The sealing performance between the outer peripheral surfaces.

In some embodiments, the barrier 20 includes an extruding part 22, a plunger 23 and a baffle 21 in sequence, and both the extruding part 22 and the plunger 23 can cooperate with the pipeline 10 to complete the sealing, so as to ensure that air leakage does not occur in the suction state .

Please refer to Fig. 3, Fig. 4 and Fig. 6, in some embodiments, there is also an avoidance groove 14 in the pipeline 10, the avoidance groove 14 communicates with the suction channel 11 and is opposite to the through groove 12, in the suction state, part The blocking member 20 is inserted into the escape groove 14 .

In some embodiments, the outer peripheral surface of the pipe 10 also has a raised portion for accommodating the escape groove 14 .

The second aspect of the present application provides an endoscope, including the above suction valve.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A suction valve, characterized in that it comprises a pipeline (10) and a stopper (20), the pipeline (10) is provided with a linear suction channel (11), the suction channel (11) The two ends are respectively a suction outlet (111) and a suction inlet (112), and the pipeline (10) is also provided with a through groove (12), and the through groove (12) has a communicating section (122) and a notch (121) ; The communication section (122) is used to communicate the suction outlet (111) with the suction inlet (112), and the notch (121) is used to connect the outside of the pipeline (10) to the suction outlet (111) In communication, the blocking member (20) is movably arranged in the through groove (12) through the notch (121), so that the suction valve has a non-suction state and a suction state. 2. The suction valve according to claim 1, characterized in that, the suction valve further comprises a deformable cover (30) covering the outer peripheral surface of the pipeline (10), the blocking member ( 20) fixed on the cover (30), the cover (30) covers the notch (121), and the cover (30) is connected with the notch (121). 121) connected non-suction inlet (31); in the non-suction state, the non-suction inlet (31) is opened; in the suction state, the cover (30) is deformed to the non-suction inlet (31) closure. 3. The suction valve according to claim 2, characterized in that, the blocking member (20) and the cover member (30) are made of the same material, and both are integrally formed. 4. The suction valve according to claim 2, characterized in that, the outer peripheral surface of the pipeline (10) has a socket (13), and the cover (30) is covered on the socket (13) ) and clamped with the socket part (13). 5. The suction valve according to claim 1, characterized in that, the blocking member (20) is slidably connected in the through groove (12) along the length direction of the through groove (12), and the blocking member ( 20) comprising a blocking portion (212) and a suction through hole (211) opened along the axial direction of the suction channel (11); the side of the blocking member (20) close to the suction inlet (112) and the groove The inner wall of the opening (121) is in close contact, and there is a gap between the side of the blocking member (20) close to the suction outlet (111) and the inner wall of the notch (121). 6. The suction valve according to claim 5, characterized in that, the blocking member (20) further comprises a squeeze part (22); in the suction state, the squeeze part (22) is in contact with the pipeline ( 10) The outer peripheral surface is tightly attached to block the notch (121). 7. The suction valve according to claim 6, characterized in that, the outer peripheral surface of the pipeline (10) is protruded with a sleeve part (13), and the extrusion part (22) is stepped, so that in the suction state The bottom is in close contact with the outer peripheral surface of the pipe (10) and the socket part (13). 8. The suction valve according to claim 5, characterized in that, the blocking member (20) further comprises a plunger (23), and the projection of the blocking portion (212) along the axial direction of the through groove (12) Located in the projection of the plunger (23); in the non-suction state, the blocking portion (212) blocks the communication section (122); in the suction state, the plunger (23) blocks the the notch (121). 9. The suction valve according to claim 5, characterized in that, an avoidance groove (14) is provided in the pipeline (10), and the avoidance groove (14) communicates with the suction channel (11) and is connected with The through groove (12) is opposite, and in a suction state, part of the blocking member (20) is inserted into the escape groove (14). 10. An endoscope, characterized by comprising the suction valve according to any one of claims 1-9.