A urological stone grabber

Abstract

The present application relates to the field of surgical instruments, in particular to a kind of urological surgery stone grabber, including stone grabber body, the handle tail of the stone grabber body is inserted with edge slot cover, the outer surface of the edge slot cover is coaxially provided with swivel, positioning piece is arranged between the swivel and edge slot cover, the outer surface of the swivel is connected with arc-shaped frame, a plurality of protruding columns are extended in annular array on the side of the arc-shaped frame, the length of the plurality of protruding columns increases sequentially from the upper portion of arc-shaped frame downwards, the end of the plurality of protruding columns is extended with fixed shell, fixed strong magnet is embedded in the inside of the fixed shell, the switch of the handle of the stone grabber body is clamped with control bending plate, guide plate frame is extended on the side of the control bending plate.The present application relieves the hand fatigue of medical staff, and ensures that when the stone of different sizes is grabbed, switch can be limited, effectively meet the use required, while also facilitate use.

Description

Technical Field

[0001] This invention relates to the field of surgical instruments, and more particularly to a urological stone grasping device. Background Technology

[0002] Urological stones are solid crystalline deposits that form within the urinary system, encompassing kidney stones, ureteral stones, bladder stones, and urethral stones, and are among the most common urological diseases. In the treatment of urological stones, stone graspers serve as crucial instruments, precisely grasping and removing stones to effectively resolve urinary tract obstruction and pain caused by stones, making them an indispensable tool in minimally invasive surgery.

[0003] However, current clinical stone-grabbing devices have operational limitations: after successfully grasping the stone, medical staff must continuously apply force to maintain the clamping state until the device is completely withdrawn from the urethra to complete stone expulsion. This operation mode, which requires maintaining force for a long time, can easily cause muscle fatigue in the hands of medical staff. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing a urological stone grasping device.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a urological stone grasper, comprising a stone grasper body, a side groove sleeve inserted into the handle end of the stone grasper body, a rotating ring coaxially disposed on the outer surface of the side groove sleeve, a positioning element disposed between the rotating ring and the side groove sleeve, an arc frame connected to the outer surface of the rotating ring, multiple protruding pillars extending in a circular array on one side of the arc frame, the length of the multiple protruding pillars increasing sequentially from the upper part of the arc frame downwards, a fixing shell extending from the end of each of the multiple protruding pillars, a fixing strong magnet embedded inside the fixing shell, a control bending plate engaged at the switch of the handle of the stone grasper body, a guide plate frame extending from the side of the control bending plate, an assembly disposed between the guide plate frame and the side groove sleeve, and a limiting strong magnet disposed at the upper edge of the guide plate frame.

[0006] Preferably, two connecting columns are symmetrically fixedly installed on the other side of the arc-shaped frame, and two column sleeves extend symmetrically from the outer surface of the rotating ring, with the ends of the connecting columns penetrating and embedded inside the column sleeves.

[0007] Preferably, the outer surface of the rotating ring has two connecting frames that extend symmetrically, the two connecting frames are staggered with the two column sleeves, and a lever plate is embedded through the ends of the two connecting frames.

[0008] Preferably, a shell extends from the upper edge of the guide plate frame, and a limiting shell extends from the side of the shell frame. The limiting shell is integrally formed with the shell frame, and the limiting strong magnet is embedded inside the limiting shell.

[0009] Preferably, the positioning element includes a limiting groove formed on the outer surface of the side groove sleeve, the rotating ring fitting inside the limiting groove, a receiving groove formed on the inner bottom surface of the limiting groove, an elastic rubber pad fixedly installed inside the receiving groove, an elastic rubber strip extending from the middle of the elastic rubber pad, the elastic rubber strip being integrally formed with the elastic rubber pad, the cross-sectional shape of the elastic rubber strip being triangular, and a plurality of V-shaped positioning grooves being formed in a ring array on the inner surface of the rotating ring, the included angle between two adjacent V-shaped positioning grooves being the same as the included angle between two adjacent protrusions, and the elastic rubber strip engaging inside one of the V-shaped positioning grooves.

[0010] Preferably, the assembly includes an assembly seat fixedly installed on the side of the side groove sleeve, a block seat is provided on the side of the assembly seat, two guides extend symmetrically on one side of the block seat, the guide plate frame is slidably installed between the two guides, a T-shaped assembly block extends from the other side of the block seat, the T-shaped assembly block is inserted into the interior of the assembly seat, and an assembly ear is provided at the front end of the assembly seat, the assembly ear abutting the front end of the T-shaped assembly block.

[0011] Preferably, a carrier post is rotatably mounted through the end of the assembly ear, the rear end of the carrier post is fixed to the assembly base, a pressure cap is coaxially embedded at the front end of the carrier post, and a rubber ring is provided at the rear end of the pressure cap, the rubber ring being tightly attached to the front end of the assembly ear.

[0012] Preferably, the front and rear ends of the guide plate frame are provided with guide grooves, the guide frame is slidably installed inside the guide grooves, a second limiting ear extends from the upper edge of the guide frame, a first limiting ear is provided on the side of the second limiting ear, and the end of the first limiting ear is fixed to the guide plate frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Turn on the switch on the stone grabber body to control the grabbing head of the stone grabber body to grab the stone. At this time, the control bending plate and the limiting strong magnet on the guide plate frame move towards the side slot sleeve under the action of the switch. After the grabbing head of the stone grabber body grabs the stone, rotate the rotating ring to drive the fixed strong magnet on the arc frame to move to the side of the limiting strong magnet. The fixed strong magnet and the limiting strong magnet attract each other under magnetic force, thereby generating a pulling force to pull the control bending plate, which in turn restricts the switch after it is turned on, so that the grabbing head of the stone grabber body keeps clamping the stone. Then you can release the switch and then pull the stone grabber body out of the urethra to allow the grabbed stone to be discharged. The process does not require continuous force to maintain the clamping operation of the stone, effectively reducing the hand fatigue of medical staff.

[0015] 2. Under the action of multiple protruding pillars in a ring array with their length increasing from top to bottom, multiple fixed strong magnets can be arranged in a stepped manner. When the subsequent switch moves to different positions to grab stones of different sizes, the fixed strong magnets that are adapted to the position of the switch can be rotated to the switch to attract and restrict them. This ensures that the switch can be restricted when grabbing stones of different sizes to meet the needs of use.

[0016] 3. Insert the side slot sleeve into the handle of the stone grabber body, then insert the T-shaped assembly block on the block base into the assembly base. At this time, the control bending plate is engaged with the switch of the handle of the stone grabber body. Then rotate the assembly ear to make the assembly ear press against the T-shaped assembly block, so that the T-shaped assembly block is fixed in the assembly base. Then fix the control bending plate at the switch to complete the assembly. Conversely, it can be disassembled. The process is simple and convenient to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a urological stone grasping device according to the present invention;

[0018] Figure 2 This is a partial view of a urological stone grasping device according to the present invention;

[0019] Figure 3 This is an exploded view of the stone grasper body and the side groove sleeve of a urological stone grasper according to the present invention.

[0020] Figure 4 This invention relates to a urological stone grasping device. Figure 3 Enlarged view of A in the middle;

[0021] Figure 5 This invention relates to a urological stone grasping device. Figure 3 Enlarged view of B in the middle;

[0022] Figure 6 This is a cross-sectional view of the connection between the rotating ring and the side groove sleeve of a urological stone grasper according to the present invention;

[0023] Figure 7 This is a schematic diagram of the side groove sleeve of a urological stone grasper according to the present invention;

[0024] Figure 8 This is a schematic diagram of the rotating part of a urological stone grasper according to the present invention;

[0025] Figure 9 This is a schematic diagram of the arc-shaped frame of a urological stone grasper according to the present invention;

[0026] Figure 10 This is a schematic diagram of the guide plate frame of a urological stone grasper according to the present invention.

[0027] In the diagram: 1. Stone grabber body; 2. Control bending plate; 3. Guide plate frame; 4. Limiting shell; 5. Fixing strong magnet; 6. Assembly base; 7. Rotary ring; 8. Side groove sleeve; 9. Limiting groove; 10. Receiving groove; 11. Assembly ear; 12. Elastic rubber pad; 13. Elastic rubber strip; 14. V-shaped positioning groove; 15. Guide groove; 16. First limiting ear; 17. Limiting strong magnet; 18. Carrier column; 19. Pressure cap; 20. Rubber ring; 21. T-shaped assembly block; 22. Block base; 23. Guide frame; 24. Second limiting ear; 25. Paddle plate; 26. Connecting frame; 27. Connecting column; 28. Arc frame; 29. ​​Protruding column; 30. Fixing shell; 31. Shell frame; 32. Column sleeve; 33. Switch. Detailed Implementation

[0028] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0029] like Figures 1-10The illustrated urological stone grasper includes a stone grasper body 1. Since controlling the grasping head of the stone grasper body 1 to grasp stones by toggling a switch 33 on the stone grasper body 1 is existing technology and widely used, it is not described in detail here. A side groove sleeve 8 is inserted into the tail of the handle of the stone grasper body 1. Rubber protrusions can be provided inside the side groove sleeve 8 to enhance the engagement force between the side groove sleeve 8 and the tail of the handle of the stone grasper body 1, preventing separation. A rotating ring 7 is coaxially arranged on the outer surface of the side groove sleeve 8. A positioning element is provided between the rotating ring 7 and the side groove sleeve 8. An arc-shaped frame 28 is connected to the outer surface of the rotating ring 7, and one side of the arc-shaped frame 28 has a circular array... Multiple protruding pillars 29 extend from the top of the arc-shaped frame 28, which supports the protruding pillars 29. The length of the multiple protruding pillars 29 increases sequentially from the top to the bottom of the arc-shaped frame 28. Under the action of the multiple protruding pillars 29 arranged in a ring with their lengths increasing sequentially from top to bottom, multiple fixed strong magnets 5 can be arranged in a stepped manner. When the switch 33 moves to different positions to grasp stones of different sizes, the fixed strong magnets 5 that are adapted to the position of the switch 33 can be rotated to the position of the switch 33 to attract and restrict the stones. This ensures that the switch 33 can be restricted when grasping stones of different sizes to meet the needs of use. Each end of the multiple protruding pillars 29 extends into a fixed shell 30, and a fixed strong magnet is embedded inside the fixed shell 30. 5. The fixed shell 30 serves to support the fixed strong magnet 5. A control bending plate 2 is engaged with the switch 33 of the handle of the stone grabber body 1. A guide plate frame 3 extends from the side of the control bending plate 2. The control bending plate 2 restricts the switch 33 of the handle of the stone grabber body 1. An assembly is provided between the guide plate frame 3 and the side groove sleeve 8. A limiting strong magnet 17 is provided at the upper edge of the guide plate frame 3. The magnetic force of the fixed strong magnet 5 and the limiting strong magnet 17 is such that the switch 33 can be fixed. When the switch 33 on the stone grabber body 1 is turned, the grabbing head of the stone grabber body 1 is controlled to grab the stone. At this time, the limiting strong magnet 17 on the control bending plate 2 and the guide plate frame 3 are driven by the switch 33. Move downwards towards the side groove sleeve 8. After the grasping head of the stone grasper body 1 grasps the stone, rotate the rotating ring 7 to drive the fixed strong magnet 5 on the arc frame 28 to move. Move the fixed strong magnet 5 to the side of the limiting strong magnet 17, so that the fixed strong magnet 5 and the limiting strong magnet 17 attract each other under magnetic force, thereby generating a pulling force to pull the control bending plate 2, and thus restricting the switch 33 after it is turned on, so that the grasping head of the stone grasper body 1 keeps clamping the stone. Then, release the switch 33 and pull the stone grasper body 1 out of the urethra so that the grasped stone can be discharged. The process does not require continuous force to maintain the clamping operation of the stone, effectively reducing the hand fatigue of medical staff.

[0030] Two connecting columns 27 are symmetrically fixed on the other side of the arc frame 28. Two column sleeves 32 extend symmetrically from the outer surface of the rotating ring 7. The ends of the connecting columns 27 are embedded in the inside of the column sleeves 32. The connecting columns 27 and column sleeves 32 serve to fix the arc frame 28 and the rotating ring 7 together.

[0031] Two connecting frames 26 extend symmetrically from the outer surface of the rotating ring 7. The two connecting frames 26 are staggered with the two column sleeves 32. A lever plate 25 is embedded through the ends of the two connecting frames 26. The connecting frames 26 serve to fix the lever plate 25, and the lever plate 25 facilitates the rotation of the rotating ring 7.

[0032] A housing 31 extends from the upper edge of the guide plate frame 3, and a limiting shell 4 extends from the side of the housing 31. The housing 31 serves to facilitate the fixing of the limiting shell 4 and the guide plate frame 3 together. The limiting shell 4 is integrally formed with the housing 31, and the limiting strong magnet 17 is embedded inside the limiting shell 4. The limiting shell 4 serves to support the limiting strong magnet 17.

[0033] The positioning component includes a limiting groove 9 formed on the outer surface of the side groove sleeve 8. The rotating ring 7 fits inside the limiting groove 9, which prevents the rotating ring 7 from moving left or right. A receiving groove 10 is formed on the inner bottom surface of the limiting groove 9, and an elastic rubber pad 12 is fixedly installed inside the receiving groove 10. The receiving groove 10 serves to accommodate the elastic rubber pad 12. An elastic rubber strip 13 extends from the middle of the elastic rubber pad 12. The elastic rubber pad 12 ensures that the elastic rubber strip 13 has sufficient deformation to disengage from the V-shaped positioning groove 14. The elastic rubber strip 13 is integrally formed with the elastic rubber pad 12, and the cross-sectional shape of the elastic rubber strip 13 is triangular. The inner surface of the rotating ring 7... The annular array has multiple V-shaped positioning grooves 14. The included angle between two adjacent V-shaped positioning grooves 14 is the same as the included angle between two adjacent protrusions 29. The elastic rubber strip 13 is engaged inside one of the V-shaped positioning grooves 14. When the rotating ring 7 is manually rotated, the elastic rubber strip 13 deforms under the inner wall of the rotating ring 7 to disengage from the V-shaped positioning groove 14, allowing the rotating ring 7 to rotate normally. When the rotating ring 7 rotates the fixed strong magnet 5 to the limiting strong magnet 17, the elastic rubber strip 13 will restore its deformation to engage in another V-shaped positioning groove 14, thereby fixing the rotated rotating ring 7 and positioning the moved fixed strong magnet 5 at the limiting strong magnet 17.

[0034] The assembly includes an assembly base 6 fixedly installed on the side of the side groove sleeve 8. A block base 22 is provided on the side of the assembly base 6, which serves as a load-bearing component. Two guide frames 23 extend symmetrically from one side of the block base 22, and a guide plate frame 3 is slidably installed between the two guide frames 23. The cooperation between the guide frames 23 and the guide plate frame 3 guides the control bending plate 2. A T-shaped assembly block 21 extends from the other side of the block base 22 and is inserted into the interior of the assembly base 6. An assembly ear 11 is provided at the front end of the assembly base 6, and the assembly ear 11 abuts against the T-shaped assembly block 21. At the front end of the mounting block 21, insert the side groove sleeve 8 into the tail of the handle of the stone grabber body 1. Then, insert the T-shaped assembly block 21 on the block base 22 into the assembly base 6. At this time, the control bending plate 2 is engaged with the switch 33 of the handle of the stone grabber body 1. Then, rotate the assembly ear 11 so that the assembly ear 11 is pressed against the T-shaped assembly block 21, so that the T-shaped assembly block 21 is fixed in the assembly base 6. Then, fix the control bending plate 2 at the switch 33 to complete the assembly. Conversely, it can be disassembled. The process is simple to operate and effectively facilitates use.

[0035] A carrier post 18 is rotatably mounted through the end of the assembly ear 11. The rear end of the carrier post 18 is fixed to the assembly base 6. The carrier post 18 serves to connect the assembly ear 11. A pressure cap 19 is coaxially embedded at the front end of the carrier post 18. A rubber ring 20 is provided at the rear end of the pressure cap 19. The rubber ring 20 is close to the front end of the assembly ear 11. The pressure cap 19 can press the rubber ring 20 onto the assembly ear 11 so that the assembly ear 11 can be fixed by itself after rotation under the action of friction.

[0036] Guide slots 15 are provided at both the front and rear ends of the guide plate frame 3. The guide frame 23 is slidably installed inside the guide slots 15. The guide slots 15 facilitate the sliding installation of the guide plate frame 3 between the two guide frames 23. A second limiting ear 24 extends from the upper edge of the guide frame 23. A first limiting ear 16 is provided on the side of the second limiting ear 24. The end of the first limiting ear 16 is fixed to the guide plate frame 3. The cooperation between the second limiting ear 24 and the first limiting ear 16 serves to prevent the guide frame 23 and the guide plate frame 3 from separating.

[0037] In use, insert the side groove sleeve 8 into the handle end of the stone grabber body 1, then insert the T-shaped assembly block 21 on the block base 22 into the assembly base 6. At this time, the control bending plate 2 engages with the switch 33 on the handle of the stone grabber body 1. Then rotate the assembly ear 11 to press it against the T-shaped assembly block 21, so that the T-shaped assembly block 21 is fixed in the assembly base 6. Then fix the control bending plate 2 at the switch 33 to complete the assembly. Then, turn the switch 33 on the stone grabber body 1 to control the grabbing head of the stone grabber body 1 to grab the stone. At this time, the control bending plate 2 and the limiting strong magnet 17 on the guide plate frame 3 move in the direction of the side groove sleeve 8 under the action of the switch 33. After the grabbing head of the stone grabber body 1 grabs the stone, rotate the rotating ring 7 to drive the fixed strong magnet 5 on the arc frame 28 to move. The fixed strong magnet 5 and the limiting strong magnet 17 are attracted to each other under magnetic force, thereby generating a pulling force to pull the control bending plate 2, which in turn restricts the switch 33 after it is turned on, so that the grasping head of the stone grasper body 1 keeps the stone in a clamped state. Then the switch 33 can be released, and the stone grasper body 1 can be pulled out of the urethra to allow the grasped stone to be discharged. At the same time, under the action of multiple protrusions 29 in a ring array with the length increasing from top to bottom, multiple fixed strong magnets 5 can be arranged in a stepped manner. When the switch 33 moves to different positions to grasp stones of different sizes, the fixed strong magnets 5 that are adapted to the position of the switch 33 can be rotated to the position of the switch 33 to attract and restrict it. This ensures that the switch 33 can be restricted when grasping stones of different sizes to meet the needs of use.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A urological stone grasping device, comprising a stone grasping device body (1), characterized in that: The handle of the stone grabber body (1) is fitted with a side groove sleeve (8). A rotating ring (7) is coaxially arranged on the outer surface of the side groove sleeve (8). A positioning element is provided between the rotating ring (7) and the side groove sleeve (8). An arc frame (28) is connected to the outer surface of the rotating ring (7). Multiple protruding pillars (29) extend in a circular array on one side of the arc frame (28). The length of the multiple protruding pillars (29) increases sequentially from the top of the arc frame (28) downwards. A fixing shell (30) extends from the end of each of the multiple protruding pillars (29). A fixing strong magnet is embedded inside the fixing shell (30). (5) A control bending plate (2) is engaged at the switch of the handle of the stone grabber body (1). A guide plate frame (3) extends from the side of the control bending plate (2). An assembly is provided between the guide plate frame (3) and the side groove sleeve (8). A limiting strong magnet (17) is provided at the upper edge of the guide plate frame (3). The fixing strong magnet (5) and the limiting strong magnet (17) attract each other under magnetic force, thereby generating a pulling force to pull the control bending plate (2), thereby limiting the switch after it is turned on, so that the grabbing head of the stone grabber body (1) keeps the stone clamped.

2. The urological stone grasping device according to claim 1, characterized in that: Two connecting columns (27) are symmetrically fixed on the other side of the arc frame (28). Two column sleeves (32) extend symmetrically from the outer surface of the rotating ring (7). The ends of the connecting columns (27) are embedded in the inside of the column sleeves (32).

3. A urological stone grasping device according to claim 2, characterized in that: Two connecting frames (26) extend symmetrically from the outer surface of the rotating ring (7). The two connecting frames (26) are staggered with the two column sleeves (32). A lever plate (25) is embedded between the ends of the two connecting frames (26).

4. A urological stone grasping device according to claim 1, characterized in that: A shell frame (31) extends from the upper edge of the guide plate frame (3), and a limiting shell (4) extends from the side of the shell frame (31). The limiting shell (4) is integrally formed with the shell frame (31), and the limiting strong magnet (17) is embedded in the interior of the limiting shell (4).

5. A urological stone grasping device according to claim 1, characterized in that: The positioning component includes a limiting groove (9) formed on the outer surface of the side groove sleeve (8). The rotating ring (7) fits into the inside of the limiting groove (9). The bottom surface of the limiting groove (9) is provided with a receiving groove (10). An elastic rubber pad (12) is fixedly installed inside the receiving groove (10). An elastic rubber strip (13) extends from the middle of the elastic rubber pad (12). The elastic rubber strip (13) is integrally formed with the elastic rubber pad (12). The cross-sectional shape of the elastic rubber strip (13) is triangular. The inner surface of the rotating ring (7) is provided with a plurality of V-shaped positioning grooves (14) arranged in a ring array. The included angle between two adjacent V-shaped positioning grooves (14) is the same as the included angle between two adjacent protrusions (29). The elastic rubber strip (13) is engaged inside one of the V-shaped positioning grooves (14).

6. A urological stone grasping device according to claim 1, characterized in that: The assembly includes an assembly seat (6) fixedly installed on the side of the side groove sleeve (8). A block seat (22) is provided on the side of the assembly seat (6). Two guides (23) extend symmetrically on one side of the block seat (22). The guide plate frame (3) is slidably installed between the two guides (23). A T-shaped assembly block (21) extends on the other side of the block seat (22). The T-shaped assembly block (21) is inserted into the interior of the assembly seat (6). An assembly ear (11) is provided at the front end of the assembly seat (6). The assembly ear (11) rests on the front end of the T-shaped assembly block (21).

7. A urological stone grasping device according to claim 6, characterized in that: The end of the assembly ear (11) is rotatably mounted with a carrier column (18). The rear end of the carrier column (18) is fixed to the assembly base (6). The front end of the carrier column (18) is coaxially inlaid with a pressure cap (19). The rear end of the pressure cap (19) is provided with a rubber ring (20). The rubber ring (20) is close to the front end of the assembly ear (11).

8. A urological stone grasping device according to claim 6, characterized in that: The front and rear ends of the guide plate frame (3) are provided with guide grooves (15). The guide frame (23) is slidably installed inside the guide groove (15). A second limiting ear (24) extends from the upper edge of the guide frame (23). A first limiting ear (16) is provided on the side of the second limiting ear (24). The end of the first limiting ear (16) is fixed to the guide plate frame (3).

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