CN1754586B - Ultrasonic therapeutic head and ultrasonic therapeutic apparatus with the same - Google Patents

Abstract

The invention provides a therapeutic head of a hand-held ultrasonic therapeutic apparatus, which comprises a piezoelectric wafer and a bracket for supporting the piezoelectric wafer, wherein the piezoelectric wafer is fixedly connected with the bracket; the two stop blocks are respectively positioned on two sides of the support and fixedly connected with the lead screw supporting seat, and the support and the piezoelectric wafer supported by the support are clamped in the middle. The invention also provides a handheld ultrasonic therapeutic apparatus provided with the therapeutic head. The therapeutic apparatus of the present invention not only enables the piezoelectric wafer which is originally not movable relative to the therapeutic apparatus shell to move, but also enables the movement to be controlled, thereby reducing the influence of human factors.

Description

Ultrasonic therapeutic head and ultrasonic therapeutic apparatus with the same

technical field

The invention belongs to the field of ultrasonic treatment, and in particular relates to an ultrasonic treatment device.

Background technique

The ultrasonic transducer of the existing handheld ultrasonic treatment device is a fixed structure, that is, the position of the ultrasonic transducer in the ultrasonic treatment device is fixed. At present, this type of hand-held ultrasonic therapy device can rely on the doctor's hand to move the treatment gun to drive the ultrasonic transducer to cover the entire treatment area during the treatment process. However, due to the influence of human factors, the use of this ultrasonic therapy device It cannot be guaranteed that the ultrasonic waves emitted by the ultrasonic transducer evenly cover the entire lesion, so that the best therapeutic effect cannot be achieved. Therefore, there is a need for an ultrasonic therapy device in which the movement of the ultrasonic transducer is controlled.

Contents of the invention

In order to overcome the above-mentioned defects in the prior art, the present invention provides a new treatment head of a hand-held ultrasonic treatment apparatus and a treatment apparatus with the treatment head. Specifically, the present invention includes the following contents:

The technical solution of the present invention provides a treatment head of a hand-held ultrasonic therapeutic apparatus, including a piezoelectric wafer and a bracket for supporting the piezoelectric wafer, the piezoelectric wafer is fixedly connected with the bracket, and the treatment The head also includes: two stoppers and a transmission device capable of linear movement, wherein the transmission device includes a screw, a nut and a screw support seat, the nut is fixedly connected with the bracket, and is sleeved on the screw , the screw rod is movably installed on the screw support base; the two stoppers are respectively located on both sides of the bracket and are fixedly connected with the screw support base, and the bracket and its supported Piezoelectric wafers are sandwiched in the middle.

Wherein, the threads of the nut and the screw rod are matched with each other, and the screw rod support base is rotatably connected with the end of the screw rod.

Wherein, the stopper can be a bar and/or a rod and/or a rod. The stopper clamps the support and the piezoelectric wafer it supports to prevent the support and the piezoelectric wafer it supports from rotating, and thus can function as a positioning device.

In order to precisely control the movement of the piezoelectric wafer support and the piezoelectric wafer supported in the treatment head of the present invention, the treatment head of the present invention preferably also includes a control mechanism of the transmission device. Various transmission devices can be used, for example, linear transmission devices, curved transmission devices, etc. can all be used in the present invention. In the linear transmission device, nut/screw, gear/rack, cylinder/piston, chute/sliding rod, etc. can be used. In the said curve transmission device, the way of circular arc guide rail pair can be used. Depending on the application, different transmissions can be selected or combined.

In the linear motion mode driven by the nut/screw mode, the movement of the screw rod relative to the nut can be completed by manual driving or automatic control. It is preferable to adopt the mode of automatic control completion. In the above-mentioned automatic control method, for example, electric control, hydraulic control, pneumatic control, etc. can be used.

In addition, the present invention also provides a hand-held ultrasonic treatment instrument, which is characterized in that it includes a casing and an ultrasonic treatment head, the treatment head is accommodated at the front end of the casing, and the ultrasonic treatment head includes a piezoelectric wafer, A bracket for supporting the piezoelectric wafer and a transmission device, the piezoelectric wafer is fixedly connected to the bracket and carried on the bracket; the transmission device is fixedly installed on the bracket and directly or indirectly fixedly connected to the shell, so that the bracket and the piezoelectric wafer supported by it can move relative to the shell. The housing has an opening on a side opposite to the ultrasonic emission end, and the size of the opening is the area where the bracket and the piezoelectric chip carried by it can move under the driving of the transmission device.

The hand-held ultrasonic therapeutic apparatus of the present invention further preferably includes a motion control mechanism of the transmission device, and one end of the control mechanism is fixedly connected to the transmission device. The control mechanism includes an electric motor, such as a servo motor, a stepping motor, a DC or AC motor. Preferably, the control mechanism further includes a micro switch electrically connected to the motor, the micro switch is installed on the shell of the therapeutic apparatus and located above the transmission device, the micro switch The upper edge is lower than the upper edge of the transmission. When using a linear drive such as a screw/nut device, the upper edge of the micro switch should be lower than the upper edge of the nut. When the piezoelectric chip support and the piezoelectric chip carried by it move to the limit position at both ends of the screw rod, the protrusion on the nut will touch the micro switch, thereby controlling the reciprocating motion of the ultrasonic transducer.

In order to facilitate the adjustment of the focal length of the therapeutic ultrasound and the protection of the above-mentioned ultrasonic treatment head, the hand-held ultrasonic therapeutic apparatus of the present invention preferably also includes a headgear, which is detachably connected to the shell around the opening of the shell on the side opposite to the ultrasonic emission end. connect. Preferably, the headgear further includes an ultrasonic focusing device, and the ultrasonic focusing device is installed at the end of the headgear opposite to the opening of the shell of the therapeutic apparatus. The headgear is replaceable and can be used to change the depth of focus. Preferably, the shell of the headgear is entirely or partially made of sound-permeable material. If the headgear is partly made of a sound-permeable membrane, the headgear is an opening corresponding to the ultrasonic emission area of the piezoelectric wafer, the opening is covered by the sound-transmitting membrane, and the rest of the headgear can be treated with Made of the same material as the housing.

A baffle plate is also preferably installed in the shell of the ultrasonic therapeutic apparatus of the present invention, and the baffle plate forms a closed space with the front end of the headgear and the shell, and the piezoelectric wafer and the transmission device are located in the In the enclosed space, the screw rod in the transmission device passes through the baffle plate and is connected with the motor. Preferably said enclosed space is watertight.

A group of water pipes can also be installed in the ultrasonic therapeutic apparatus of the present invention, and the group of water pipes includes a water inlet pipe and a water return pipe for respectively introducing water into and out of the enclosed space. When the space is filled with water, the water acts as a cooling medium, and can make the sound-permeable membrane at the end of the treatment head closer to the target area to be treated.

The ultrasonic therapy device provided by the present invention not only enables the piezoelectric chip that cannot move relative to the shell of the therapeutic device to move, but also makes the movement controlled, thereby reducing the It eliminates the influence of human factors, thereby ensuring that the therapeutic ultrasonic energy evenly covers the lesion, and provides a guarantee for achieving the best therapeutic effect.

Description of drawings

Fig. 1 is a sectional view of a therapeutic gun, a specific embodiment of the ultrasonic therapeutic apparatus of the present invention.

Fig. 2 is a structural schematic diagram of a specific embodiment of the treatment head of the ultrasonic treatment apparatus of the present invention.

Explanation of symbols in the figure:

1 Shell of therapeutic apparatus 21 Bracket 22 Piezoelectric chip 23 Power cord

3 Transmission device 31 Screw support seat 32 Screw rod 33 Micro switch

34 Nut 35 Block 36 Sealing ring 37 Motor

38 motor power cord 4 baffle 5 power switch 6 headgear

61 Hood shell 62 Sound-permeable membrane 7 Water pipe 71 Water inlet pipe

72 return pipe

Detailed ways:

Example 1

Fig. 2 is a structural schematic diagram of a treatment head for a hand-held ultrasonic treatment apparatus using a linear transmission device. As shown in FIG. 2 , the treatment head of the present invention includes a piezoelectric wafer 22 , a piezoelectric wafer support 21 , two strip stops 35 , a screw mandrel 32 , a nut 34 and a screw mandrel support seat (not shown). The piezoelectric wafer 22 is fixedly supported on the bracket 21, the nut 34 is fixedly connected with the piezoelectric wafer bracket 21, the nut 34 is sleeved on the screw mandrel 32, the screw threads of the nut 34 and the screw mandrel 32 are mutually matched, and the screw mandrel 32 The end portion is rotatably mounted on the screw support seat, and the two stoppers 35 are respectively located on both sides of the support 21 and are fixedly connected with the screw support seat. The stoppers 35 clamp the piezoelectric wafer support 21 in the middle, and To prevent the bracket 21 and the piezoelectric wafer 22 supported by it from rotating, and thus also function as a positioning device.

Example 2

A specific embodiment of the ultrasonic therapeutic apparatus of the present invention shown in FIG. 1 , wherein the therapeutic head described in Embodiment 1 is assembled. As shown in Fig. 1, a kind of ultrasonic therapeutic apparatus of the present invention comprises shell 1, piezoelectric wafer support 21, piezoelectric wafer 22, transmission device 3, baffle plate 4, block 35, sealing ring 36, motor 37, power cord 38. Power switch 5, micro switch 33, headgear 6, water pipe 7, piezoelectric chip 22 is fixedly connected and carried on the bracket 21, the other end of bracket 21 is fixedly connected to the transmission device 3, and the baffle plate 4 surrounds the shell 1 The formed space is divided into front and back two parts, the piezoelectric chip 22 carried on the support 21 and the transmission device 3 are installed together in the front space in the therapeutic apparatus shell 1, and the motor 37 and the power switch 5 are located in the shell 1 in the rear space. The front half of baffle plate 4, headgear 6 and shell 1 forms a closed space together, and water pipe 7 (water inlet pipe 71, water return pipe 72) one end links to each other with water source, and the other end passes baffle plate 4 and passes into described closed space. The transmission device 3 includes a threaded mandrel support seat 31, a threaded mandrel 32 and a nut 34, the threaded mandrel support seat 31 is fixedly mounted on the casing 1, the threaded mandrel 32 is installed on the threaded mandrel support seat 31, and the threaded mandrel 32 passes through the baffle plate 4 to connect On the motor 37, the nut 34 is sleeved on the screw mandrel 32, and the sealing ring 36 is located between the baffle plate 4 and the screw mandrel 32, which is a motion seal between the two, watertight, but relatively rotatable. The rotation of the motor 37 drives the nut 34 to move linearly along the screw rod 32 , thereby driving the piezoelectric wafer support 21 fixedly connected to the nut 34 and the piezoelectric wafer 22 it carries to move relative to the housing 1 . The micro switch 33 is mounted on the housing 1 and is electrically connected to the motor 37 through a motor control device (not shown in detail in the figure). When the piezoelectric wafer support 21 and the piezoelectric wafer 22 carried by it move to the limit position at both ends, the protrusion on the nut 34 will touch the micro switch 33, so that the motor control unit sends forward rotation or reverse rotation to the motor 37. command, so that the motor 37 drives the transmission device 3 to reciprocate. The motor 37 can be a servo motor, a stepper motor, a DC or AC motor.

The above descriptions are only specific examples of the present invention, and are not intended to limit the scope of the patent application of the present invention. The above-mentioned embodiments can also be changed or modified without departing from the spirit disclosed by the present invention. However, it should be understood that these changes Or modifications should be included in the scope of this patent application.

Claims (12)

1. the treatment head of a ultrasonic hand-held therapeutic instrument, comprise piezoelectric chip and the support that is used to support this piezoelectric chip, described piezoelectric chip is fixedlyed connected with described support, it is characterized in that, but described treatment head also comprises the actuating device of two blocks and moving linearly, wherein

Described actuating device comprises screw mandrel, nut and screw mandrel supporting seat, and described nut is fixedlyed connected with support, and is sleeved on the described screw mandrel, and described screw mandrel is installed on the described screw mandrel supporting seat movably;

Described two blocks lay respectively at the both sides of described support and fixedly connected with the screw mandrel supporting seat, and described support and the piezoelectric chip that supported thereof are clipped in the middle.

2. treatment head according to claim 1 is characterized in that described screw mandrel supporting seat is positioned at the end of screw mandrel, and is connected rotationally with the end of screw mandrel.

3. hand-hold ultrasonic treatment instrument, it is characterized in that, comprise shell and as each described treatment head of claim 1-2, described treatment head is contained in the front end in the described shell, described shell has opening with ultrasound wave ejecting end one side in opposite directions, the size of this opening by described support and the piezoelectric chip that carried thereof the driving of described actuating device following the zone that can move.

4. ultrasonic therapeutic apparatus according to claim 3 is characterized in that, also comprises the motion control mechanism of described actuating device, and an end of this controlling organization is fixedlyed connected with described actuating device.

5. ultrasonic therapeutic apparatus according to claim 4 is characterized in that described controlling organization comprises motor.

6. ultrasonic therapeutic apparatus according to claim 5, it is characterized in that, described controlling organization also comprises the microswitch that is connected with described electric electromechanics, described microswitch is installed on the shell of therapeutic instrument and is positioned at the top of described actuating device, and the upper limb of described microswitch is lower than the upper limb of nut in the described actuating device.

7. ultrasonic therapeutic apparatus according to claim 5 is characterized in that, also comprises headgear, and this headgear removably is connected with described opening shell all around.

8. ultrasonic therapeutic apparatus according to claim 7, it is characterized in that, baffle plate also is housed in described shell, the front end of this baffle plate and described headgear and shell is formed the space of a sealing, described piezoelectric chip and described actuating device are positioned at described enclosed space, and the screw mandrel in the described actuating device passes described baffle plate and is connected with described motor.

9. ultrasonic therapeutic apparatus according to claim 8 is characterized in that, also comprises water pipe, and this water pipe is incorporated into cooling water in the described enclosed space.

10. according to the described ultrasonic therapeutic apparatus of claim 9, it is characterized in that described enclosed space is a water-stop.

11. the described ultrasonic therapeutic apparatus of claim 7 is characterized in that, described headgear is that acoustic window material is made.

12. the described ultrasonic therapeutic apparatus of claim 7 is characterized in that, described headgear is an opening in the scope corresponding to the ultrasonic emitting zone of described piezoelectric chip, and this opening is covered by sound passing membrane.

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