Auxiliary stripping device for prostatic urethra

Abstract

The invention relates to a prostate urethra auxiliary stripping device which comprises a handle, a handle fixedly arranged on the handle, a stripping mechanism arranged at the other end of the handle and a control switch arranged on the handle and used for controlling the stripping mechanism. The stripping mechanism comprises a shovel main body movably arranged on the handle, a left shovel telescopically arranged in the shovel main body, a right shovel telescopically arranged in the shovel main body, a reset assembly arranged in the shovel main body and used for driving the left shovel and the right shovel to stretch out and draw back, and a reciprocating assembly arranged on the handle and used for driving the shovel main body to move; the front stripping blade is arranged at the front end of the shovel main body, the left stripping blade is arranged at one end of the left shovel, and the right stripping blade is arranged at one end of the right shovel. According to the auxiliary stripping device, multi-angle and multi-direction stripping operation can be completed, the number of times that an instrument enters and exits a body cavity is reduced, the risk that surrounding tissue is accidentally injured, and bleeding or infection is caused is objectively reduced, and the convenience and safety of an operation are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a prostate urethra auxiliary stripping device. BACKGROUND

[0002] The prostate cancer radical method mainly aims at the symptoms of prostate hypertrophy and prostate lesions, and completely removes the whole prostate, seminal vesicle and part of the vas deferens to achieve the purpose of curing cancer. Since the urethra passes through the middle of the prostate, that is, the prostate urethra, the prostate urethra must be removed together when the prostate is completely removed, and then the remaining urethra is anastomosed. Such resection surgery will have a series of direct effects on the patient, such as postoperative urinary incontinence, anastomotic stoma healing to form scar tissue leading to urethral stricture, etc. The present application adopts a prostate urethra auxiliary stripping device, which can strip the urethra during surgery, thereby reducing the impact on the patient without removing the prostate urethra. SUMMARY

[0003] The summary part of the present application is used to introduce the concept in a simple form, which will be described in detail in the specific embodiment part. The summary part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0004] In order to solve the technical problems mentioned in the background part, some embodiments of the present application provide a prostate urethra auxiliary stripping device, which comprises a handle, a handle fixed on the handle, a stripping mechanism provided at the other end of the handle, a control switch provided on the handle for controlling the stripping mechanism, the stripping mechanism comprises a shovel main body movably provided on the handle, a left shovel telescopically provided in the shovel main body, a right shovel telescopically provided in the shovel main body, a reset assembly provided in the shovel main body for driving the left shovel and the right shovel to extend and retract, a reciprocating assembly provided on the handle for driving the shovel main body to move, a front stripping blade provided at the front end of the shovel main body, a left stripping blade provided at one end of the left shovel, and a right stripping blade provided at one end of the right shovel.

[0005] Specifically, the reciprocating assembly comprises a driving rod rotatably provided in the handle, a circular plate fixed on the connecting rod, circular teeth equidistantly and annularly provided on the circular plate, an arc-shaped sliding groove provided on the handle, an arc-shaped sliding rod movably provided in the arc-shaped sliding groove, and an arc-shaped rack fixed on the arc-shaped sliding rod and matched with the circular teeth; the shovel main body is fixed on the arc-shaped rack.

[0006] Specifically, the reset assembly comprises a first rotating shaft rotatably arranged on the shovel body, a first connecting rod with one end fixedly arranged on the first rotating shaft, a second rotating shaft fixedly arranged on the first connecting rod, a second connecting rod with one end rotatably arranged on the second rotating shaft, a first sliding groove arranged in the second connecting rod, a sliding block movably arranged in the first sliding groove, a first spring with two ends fixedly arranged on the first sliding groove and the sliding block respectively, a third rotating shaft fixedly arranged on the sliding block, a third connecting rod rotatably arranged on the third rotating shaft, a left rotating rod with two ends rotatably arranged on the left shovel and the third connecting rod respectively, a right rotating rod with two ends rotatably arranged on the right shovel and the third connecting rod respectively, a rotating ring rotatably arranged on the third rotating shaft, a fourth connecting rod rotatably arranged on the rotating ring, a second displacement groove arranged on the arc-shaped rack, a third displacement groove arranged on the shovel body, and a limiting assembly arranged in the handle; the fourth connecting rod is rotatably arranged on the handle.

[0007] Specifically, the reset assembly further comprises a left L-shaped telescopic rod with one end fixedly arranged on the third connecting rod, and a right L-shaped telescopic rod with one end fixedly arranged on the third connecting rod; the other end of the left L-shaped telescopic rod is movably arranged on the left shovel; and the other end of the right L-shaped telescopic rod is movably arranged on the right shovel.

[0008] Specifically, the limiting assembly comprises a second sliding groove arranged in the handle, a limiting tube movably arranged in the second sliding groove, a first ball groove fixedly arranged in the second sliding groove, and a first displacement groove arranged at one end of the limiting tube; one end of the fourth connecting rod is rotatably arranged in the first ball groove.

[0009] Specifically, the control switch comprises a driving ring movably arranged on the driving rod, a limiting ring rotatably arranged in the driving ring, a driving lever fixedly arranged on the driving ring, a limiting groove arranged on the handle, a compression spring fixedly arranged on the driving ring, a limiting ball fixedly arranged at the other end of the compression spring, and a second ball groove arranged in the limiting groove; the limiting ring is fixedly connected with the limiting tube; and the driving rod is connected with the driving ring by using a key groove structure.

[0010] Specifically, the limiting tube comprises a first end fixedly arranged on the limiting ring, a second spring fixedly arranged on the first end, and a second end fixedly arranged at the other end of the second spring; and the first displacement groove is arranged at the second end.

[0011] Specifically, the fourth connecting rod comprises a thick tube with one end rotatably connected with the rotating ring, and a thin tube with one end rotatably connected with the first ball groove; and the thin tube is movably arranged in the thick tube.

[0012] Specifically, the reset assembly further comprises an air-filled extension part; the air-filled extension part comprises an air groove arranged in the thin tube, an air inlet arranged on the first ball groove, and an air channel arranged in the handle and in communication with the air inlet; the air groove is in communication with the air inlet; and the air channel is in communication with the second sliding groove.

[0013] The present application has the following beneficial effects: The peeling device has three working modes. The doctor controls the switch to drive the reciprocating assembly to move the shovel body along the handle in an arc shape, and to trigger the reset assembly to control the left shovel and the right shovel to extend or retract from the shovel body; when the right edge of the shovel body is closest to the axis of the handle, the left shovel extends and the right shovel retracts into the shovel body, forming a left-bent shovel mode; when the left edge of the shovel body is closest to the axis of the handle, the right shovel extends and the left shovel retracts into the shovel body, forming a right-bent shovel mode, the left-bent shovel and the right-bent shovel are symmetrical and have the same arc length; when the center line of the shovel body is in the same plane as the axis of the handle, the left shovel and the right shovel retract into the shovel body at the same time, forming a straight shovel mode, and the arc length of the straight shovel is smaller than that of the left-bent shovel and the right-bent shovel. The arc length of the straight shovel is the smallest, which is suitable for direct peeling or fine operation in front of the urethra, and the arc length of the left-bent shovel and the right-bent shovel is larger, which is suitable for peeling from the side to the back of the urethra. This design enables the doctor to calmly cope with the complex anatomical structure around the urethra, without the need to frequently change the shovel type, so as to complete the peeling operation in multiple angles and directions, reduce the number of instruments entering and exiting the body cavity, and objectively reduce the risk of injuring the surrounding tissue, causing bleeding or infection, and improve the convenience and safety of the operation. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of this application, are used to provide further understanding of the application and are incorporated herein in their entirety. The schematic embodiment drawings of the application and their descriptions serve to explain the application, and do not constitute an improper limitation on the application.

[0015] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn to scale.

[0016] In the drawings: Figure 1 is a structural diagram of the application; Figure 2 is a side view of the application; Figure 3 is Figure 2 A-A line section of Figure 1 ; Figure 4 is Figure 3 an enlarged view of A of Figure 5 is Figure 3 a B-B line section view of Figure 6 is Figure 2 A-A line section of Figure 2 ; Figure 7 is a structural diagram of the reset assembly in the application; Figure 8 It is an exploded view of the reset assembly in the application; Figure 9 It is a structural view of the fourth connecting rod in the application; Figure 10 It is a structural view of the stripping mechanism in the application. DETAILED DESCRIPTION

[0017] Embodiments of the present disclosure will be described in more detail with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only, and are not intended to limit the scope of protection of the present disclosure.

[0018] In addition, it should be further noted that, for the convenience of description, only the parts related to the application are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0019] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0020] It should be noted that the modification of "one" or "multiple" in the present disclosure is illustrative and not restrictive, and those skilled in the art should understand that, unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0021] The present disclosure will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0022] Referring to Figures 1-10 The front urethra auxiliary stripping device of the present application shown in the drawings comprises a handle 1, a handle 2 fixed on the handle 1, a stripping mechanism 3 provided on the other end of the handle 2, a control switch 4 provided on the handle 2 for controlling the stripping mechanism 3, the stripping mechanism 3 comprises a shovel body 31 movably provided on the handle 2, a left shovel 32 telescopically provided in the shovel body 31, a right shovel 33 telescopically provided in the shovel body 31, a reset assembly 34 provided in the shovel body 31 for driving the left shovel 32 and the right shovel 33 to extend and retract, a reciprocating assembly 35 provided on the handle 2 for driving the shovel body 31 to move, a front stripping blade 36 provided at the front end of the shovel body 31, a left stripping blade 37 provided at one end of the left shovel 32, and a right stripping blade 38 provided at one end of the right shovel 33.

[0023] The peeling device has three working modes. A doctor controls the switch 4 to drive the reciprocating assembly 35 to move the shovel body 31 along the handle 2 in an arc shape, and to trigger the reset assembly 34 to control the left shovel 32 and the right shovel 33 to extend from or retract into the shovel body 31; when the right edge of the shovel body 31 is closest to the axis of the handle 2, the left shovel 32 extends and the right shovel 33 retracts into the shovel body 31, forming a left-bent shovel mode; when the left edge of the shovel body 31 is closest to the axis of the handle 2, the right shovel 33 extends and the left shovel 32 retracts into the shovel body 31, forming a right-bent shovel mode, the left-bent shovel and the right-bent shovel are symmetrical and have the same arc length; as shown in Figure 1 and Figure 10 when the center line of the shovel body 31 is in the same plane as the axis of the handle 2, the left shovel 32 and the right shovel 33 retract into the shovel body 31 at the same time, and the left shovel 32 and the right shovel 33 partially overlap, forming a straight shovel mode, the arc length of the straight shovel is smaller than that of the left-bent shovel and the right-bent shovel. In the three working modes, the arc length of the straight shovel is the smallest, which is suitable for direct peeling or fine operation in the front of the urethra, and the arc lengths of the left-bent shovel and the right-bent shovel are larger, which are suitable for peeling requirements from the side to the back of the urethra. This design enables the doctor to calmly cope with the complex anatomical structure around the urethra, without the need to frequently change the type of shovel, to complete the peeling operation in multiple angles and directions, to reduce the number of instruments entering and exiting the body cavity, and to objectively reduce the risk of injuring the surrounding tissue, causing bleeding or infection, and to improve the convenience and safety of the operation.

[0024] Specifically, the reciprocating assembly 35 includes a drive rod 351 rotatably arranged in the handle 2, a circular plate 352 fixedly arranged on the connecting rod, circular teeth 353 equidistantly and annularly arranged on the circular plate 352, an arc-shaped sliding groove 354 arranged on the handle 2, an arc-shaped sliding rod 355 movably arranged in the arc-shaped sliding groove 354, and an arc-shaped gear rack 356 fixedly arranged on the arc-shaped sliding rod 355 and matched with the circular teeth 353; the shovel body 31 is fixedly arranged on the arc-shaped gear rack 356.

[0025] By controlling the switch 4, the drive rod 351 is rotated to drive the circular plate 352 and the circular teeth 353 to rotate, and the rotating circular teeth 353 are engaged with the arc-shaped gear rack 356 to drive the shovel body 31 fixedly arranged thereon to move.

[0026] Specifically, the reset assembly 34 comprises a first rotating shaft 341 rotatably arranged on the shovel body 31, a first connecting rod 342 with one end fixedly arranged on the first rotating shaft 341, a second rotating shaft 343 fixedly arranged on the first connecting rod 342, a second connecting rod 344 with one end rotatably arranged on the second rotating shaft 343, a first sliding groove 345 arranged in the second connecting rod 344, a sliding block 346 movably arranged in the first sliding groove 345, a first spring 347 with two ends fixedly arranged on the first sliding groove 345 and the sliding block 346 respectively, a third rotating shaft 348 fixedly arranged on the sliding block 346, a third connecting rod 349 rotatably arranged on the third rotating shaft 348, a left rotating rod 3491 with two ends rotatably arranged on the left shovel 32 and the third connecting rod 349 respectively, a right rotating rod 3492 with two ends rotatably arranged on the right shovel 33 and the third connecting rod 349 respectively, a rotating ring 3493 rotatably arranged on the third rotating shaft 348, a fourth connecting rod 3494 rotatably arranged on the rotating ring 3493, a second displacement groove 3495 arranged on the arc-shaped rack 356, a third displacement groove 3511 arranged on the shovel body 31, and a limiting assembly 350 arranged in the handle 2; the fourth connecting rod 3494 is rotatably arranged on the handle 2.

[0027] Specifically, the reset assembly 34 further comprises a left L-shaped telescopic rod 3496 with one end fixedly arranged on the third connecting rod 349, and a right L-shaped telescopic rod 3497 with one end fixedly arranged on the third connecting rod 349; the other end of the left L-shaped telescopic rod 3496 is movably arranged on the left shovel 32; the other end of the right L-shaped telescopic rod 3497 is movably arranged on the right shovel 33.

[0028] Taking the movement of the shovel body 31 from left to right as an example, when the shovel body 31 is located on the left side of the handle 2, the axes of the left rotating rod 3491 and the right rotating rod 3492 are in the same plane, the second connecting rod 344 is inclined to the left shovel 32, so that the left shovel 32 is extended and the right shovel 33 is retracted, and the left bending shovel state is formed; the movement of the shovel body 31 drives the fourth connecting rod 3494 to rotate around the part linked with the handle 2 as the rotation point, the movement track of the fourth connecting rod 3494 is arc-shaped, and therefore the movement tracks of the third connecting rod 349 and the sliding block 346 are also arc-shaped, the left rotating rod 3491 and the right rotating rod 3492 are rotated under the driving of the third connecting rod 349, and the left rotating rod 3491 and the right rotating rod 3492 are in the same plane when the shovel body 31 is located on the right side of the handle 2, the second connecting rod 344 is inclined to the right shovel 33, so that the right shovel 33 is extended and the left shovel 32 is retracted, and the right bending shovel state is formed. Figure 7As shown, when the shovel body 31 moves to a position where the line is in the same plane as the handle 2 axis, the axis of the fourth connecting rod 3494 is in the same plane as the axis of the handle 2, and the first connecting rod 342, the second connecting rod 344, and the third connecting rod 349 overlap, the sliding block 346 is located at the position closest to the front stripping blade 36, and the left and right turning rods 3491 and 3492 drive the left and right shovels 32 and 33 to approach each other to partially overlap, so that the left and right shovels 32 and 33 are retracted into the shovel body 31, the arc length of the straight shovel is significantly smaller than that of the left and right curved shovels, and the front stripping blade 36 is convenient for urethral stripping; the shovel body 31 continues to move to the right, the fourth connecting rod 3494 continues to swing in an arc shape, the sliding block 346 moves to the right, and at the same time moves away from the front stripping blade 36, the left and right turning rods 3491 and 3492 rotate in opposite directions, the distance between the left and right shovels 32 and 33 increases, and at the same time the second connecting rod 344 tilts towards the right shovel 33, so that the right shovel 33 extends out, and the left shovel 32 is always located in the shovel body 31, which is in a right curved shovel state. Through the swinging of the fourth connecting rod 3494 to drive the sliding block 346 to move, and then through the rotation of the third connecting rod 349 and the left and right turning rods 3491 and 3492, the linkage of the movement of the shovel body 31 and the extension and retraction of the left and right shovels 32 and 33 is realized, the actions are coordinated and consistent, and separate operation is not required, thereby simplifying the operation method. The left and right L-shaped telescopic rods 3496 and 3497 serve as connecting members, and their primary function is to maintain the connection relationship between the left and right shovels 32 and 33 and the third connecting rod 349 in motion, and to ensure the reliability and stability of the reset assembly 34 under complex motion trajectories.

[0029] Specifically, the limiting assembly 350 includes a second sliding groove 3501 arranged in the handle 2, a limiting tube 3502 movably arranged in the second sliding groove 3501, a first ball groove 3503 fixedly arranged in the second sliding groove 3501, a first accommodation groove 3504 arranged at one end of the limiting tube 3502, and one end of the fourth connecting rod 3494 rotatably arranged in the first ball groove 3503.

[0030] When the shovel body 31 is located in the middle, the limiting tube 3502 is pushed to limit the rotation of the fourth connecting rod 3494, and the straight shovel shape is stably maintained.

[0031] Specifically, the control switch 4 includes a driving ring 41 movably arranged on a driving rod 351, a limiting ring 42 rotatably arranged in the driving ring 41, a push rod 43 fixedly arranged on the driving ring 41, a limiting groove 44 arranged on the handle 2, a compression spring 45 fixedly arranged on the driving ring 41, a limiting ball 46 fixedly arranged at the other end of the compression spring 45, and a second ball groove 47 arranged in the limiting groove 44; the limiting ring 42 is fixedly connected with the limiting tube 3502; the driving rod 351 is connected with the driving ring 41 by using a key groove structure.

[0032] The driving ring 41 and the driving rod 351 can be rotated by the driving of the driving lever 43, so as to realize the shape switching of the straight shovel, the left curved shovel and the right curved shovel. When the straight shovel is switched, the limiting ball 46 enters the limiting groove 44, and a collision sound is generated to remind the doctor that the straight shovel state has been converted. Then, the limiting ring is pushed forward, the limiting ball 46 is clamped into the second ball groove 47 under the action of the compression spring 45, self-locking is realized, the arc-shaped ring drives the limiting pipe 3502 to move, and the limiting action on the fourth connecting rod 3494 is realized. The self-locking mechanism releases the hands of the doctor, so that he can pay more attention to the fine operation.

[0033] Specifically, the limiting pipe 3502 includes a first end 3505 fixedly arranged on the limiting ring 42, a second spring 3506 fixedly arranged on the first end 3505, and a second end 3507 fixedly arranged on the other end of the second spring 3506. The first displacement groove 3504 is arranged on the second end 3507.

[0034] Specifically, the fourth connecting rod 3494 includes a thick pipe 3498 rotationally connected to the rotating ring 3493 at one end, and a thin pipe 3499 rotationally connected to the first ball groove 3503 at one end. The thin pipe 3499 is movably arranged in the thick pipe 3498.

[0035] Specifically, the reset assembly 34 further includes an air inflation extension part. The air inflation extension part includes an air groove 3508 arranged in the thin pipe 3499, an air inlet 3509 arranged on the first ball groove 3503, and an air channel 3510 arranged in the handle 2 and in communication with the air inlet 3509. The air groove 3508 is in communication with the air inlet 3509. The air channel 3510 is in communication with the second sliding groove 3501.

[0036] When the driving ring 41 is pushed to be locked, the first end 3505, the second spring 3506 and the second end 3507 first move as a whole to limit the rotation of the fourth connecting rod 3494. When the second end 3507 is blocked, the first end 3505 continues to move by compressing the second spring 3506, compressing the air in the second sliding groove 3501, and pushing the thick pipe 3498 to extend outward, so as to make the third connecting rod 349 move a longer distance, and the turning angles of the left turning rod 3491 and the right turning rod 3492 are larger, so as to ensure that the left shovel 32 and the right shovel 33 are completely retracted into the shovel body 31.

[0037] The above description is merely exemplary of some preferred embodiments of the present disclosure and of the principles thereof. It is to be understood that the present disclosure is not limited to the specific technical features described above and that the scope of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, but also covers other technical solutions formed by the combinations of the above technical features or equivalent features thereof without departing from the above inventive concept. For example, the above technical features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) to form technical solutions.

Claims

1. A prostatic urethral dissection aid characterized by: The handle, the handle fixed on the handle, the peeling mechanism fixed on the other end of the handle, the control switch fixed on the handle for controlling the peeling mechanism, the shovel body movably fixed on the handle, the left shovel telescopically fixed in the shovel body, the right shovel telescopically fixed in the shovel body, the reset component fixed in the shovel body for driving the left shovel and the right shovel to telescopically extend, the reciprocating component fixed on the handle for driving the shovel body to move, the front peeling blade fixed on the front end of the shovel body, the left peeling blade fixed on one end of the left shovel, and the right peeling blade fixed on one end of the right shovel.

2. The device as claimed in claim 1, wherein: The reciprocating component includes a driving rod rotatably fixed in the handle, a circular plate fixed on the connecting rod, equidistant circular teeth fixed on the circular plate, an arc-shaped sliding groove fixed on the handle, an arc-shaped sliding rod movably fixed in the arc-shaped sliding groove, and an arc-shaped rack fixed on the arc-shaped sliding rod and matched with the circular teeth; the shovel body is fixed on the arc-shaped rack.

3. A device according to claim 2, wherein: The reset component includes a first rotating shaft rotatably fixed on the shovel body, a first connecting rod fixed on one end of the first rotating shaft, a second rotating shaft fixed on the first connecting rod, a second connecting rod rotatably fixed on one end of the second rotating shaft, a first sliding groove in the second connecting rod, a sliding block movably fixed in the first sliding groove, a first spring fixed on both ends of the first sliding groove and the sliding block, a third rotating shaft fixed on the sliding block, a third connecting rod rotatably fixed on the third rotating shaft, a left rotating rod rotatably fixed on both ends of the left shovel and the third connecting rod, a right rotating rod rotatably fixed on both ends of the right shovel and the third connecting rod, a rotating ring rotatably fixed on the third rotating shaft, a fourth connecting rod rotatably fixed on the rotating ring, a second displacement groove fixed on the arc-shaped rack, a third displacement groove fixed on the shovel body, and a limiting component fixed in the handle; the fourth connecting rod is rotatably fixed on the handle.

4. The device according to claim 3, wherein: The reset component further includes a left L-shaped telescopic rod fixed on one end of the third connecting rod and a right L-shaped telescopic rod fixed on one end of the third connecting rod; the other end of the left L-shaped telescopic rod is movably fixed on the left shovel; the other end of the right L-shaped telescopic rod is movably fixed on the right shovel.

5. A device according to claim 4, wherein: The limiting component includes a second sliding groove fixed in the handle, a limiting tube movably fixed in the second sliding groove, a first ball groove fixed in the second sliding groove, and a first displacement groove fixed on one end of the limiting tube; one end of the fourth connecting rod is rotatably fixed in the first ball groove.

6. A device according to claim 5, wherein: The control switch includes a driving ring movably fixed on the driving rod, a limiting ring rotatably fixed in the driving ring, a driving rod fixed on the driving ring, a limiting groove fixed on the handle, a compression spring fixed on the driving ring, a limiting ball fixed on the other end of the compression spring, and a second ball groove in the limiting groove; the limiting ring is fixedly connected with the limiting tube; the driving rod is connected with the driving ring by using a key groove structure.

7. A device according to claim 6, wherein: The limiting tube includes a first end fixed on the limiting ring, a second spring fixed on the first end, and a second end fixed on the other end of the second spring; the first displacement groove is provided on the second end.

8. A device according to claim 7, wherein: The fourth connecting rod includes a thick tube rotatably connected with the rotating ring on one end and a thin tube rotatably connected with the first ball groove on one end; the thin tube is movably fixed in the thick tube.

9. A device according to claim 8, wherein: The reset assembly further comprises an air inflation extension; the air inflation extension comprises an air groove arranged in the thin tube, an air inlet arranged on the first ball groove, and an air channel arranged in the handle and communicated with the air inlet; the air groove is communicated with the air inlet; and the air channel is communicated with the second sliding groove.

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