Clamping device for urinary system calculus operation

Abstract

The invention relates to the technical field of clamping devices, in particular to a clamping device for urinary system calculus surgery, which comprises an intubation tube, one end of the intubation tube is fixedly connected with a pull plate, one side of the pull plate is fixedly connected with first guide rods which are symmetrically arranged, and one ends, close to the pull plate, of the two first guide rods are jointly and fixedly connected with a first bracket; the urethral calculus extraction device comprises a first support and a second support, the first support is provided with two first guide rods, the two first guide rods are each sleeved with a reset spring, the two reset springs are fixedly connected with the first support, and the two first guide rods are each slidably connected with a first guide block. After sleeving is completed, the stone is clamped again, the stone is isolated from the inner wall of the urethra through the oval clamping plates, the situation that when the stone is clamped and pulled away, the stone in the irregular shape rubs the urethra, and damage is caused is avoided, and the urethra is well protected.

Description

Technical Field

[0001] The invention relates to the technical field of clamping devices, in particular to a clamping device for urinary system calculi surgery. Background Art

[0002] The human urinary system mainly includes the kidneys, ureters, bladder and urethra. Urinary system stones refer to granular or lump-like aggregates formed in the urinary system due to the concentration and precipitation of urine. It is a general term for kidney, ureter, bladder and urethra stones. The method of removing stones from the kidneys, ureters, bladder and urethra depends mainly on the size and location of the stones and the specific condition of the patient.

[0003] Some patients tend to expel small stones by drinking water and urinating. During the stone excretion process, small stones are often stuck in the anterior urethra and the navicular fossa. Therefore, lubricants are needed to assist in pushing and vascular clamps are needed to remove the stones. However, when using vascular clamps, since the vascular clamps are mainly expanded by the principle of leverage, this will cause the beak part of the vascular clamps to expand significantly, which can easily damage the urethra. When clamping and removing the stones, irregularly shaped stones can easily scratch the urethra and cause damage. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a clamping device for urinary stone surgery.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a clamping device for urinary system stone surgery, comprising an intubation tube, one end of the intubation tube is fixedly connected to a pull plate, one side of the pull plate is fixedly connected to a symmetrically arranged first guide rod, two ends of the first guide rods close to the pull plate are commonly fixedly connected to a first bracket, the two first guide rods are sleeved with a return spring, the two return springs are fixedly connected to the first bracket, the two first guide rods are slidably connected to a first guide block, the two first guide blocks are commonly fixedly connected to a transmission ring on the opposite side, the top inner wall of the transmission ring is fixedly connected to a first extrusion shaft, the ends of the two first guide rods away from the first bracket are commonly fixedly connected to a second bracket, the ends of the return spring away from the first bracket are fixedly connected to the second bracket, a transmission shaft is rotatably connected between the first bracket and the second bracket, the outer wall of the transmission shaft is provided with a first extrusion groove, the transmission shaft is movably connected to the transmission ring, the first extrusion shaft is correspondingly arranged to the first extrusion groove, the top and bottom ends of the transmission ring are fixedly connected to a transmission frame, and the ends of the two transmission frames away from the transmission ring are commonly fixedly connected to a transmission plate; The transmission shaft is fixedly connected to a transmission rod at one end away from the second bracket, and the transmission rod is fixedly connected to a transmission plate at one end away from the transmission shaft, and a wear-resistant ring is fixedly connected to the side of the transmission plate away from the center, and a plurality of second extrusion grooves arranged in an array are provided on the transmission plate, and a limiting groove is provided on the wear-resistant ring corresponding to the insert pipe, and the wear-resistant ring is slidably connected to the limiting groove, and a plurality of second guide rods arranged in an array are fixedly connected to the side of the inner wall of the insert pipe close to the wear-resistant ring, and a second guide block is slidably connected to the second guide rod, and a plurality of second guide blocks are fixedly connected to a second extrusion shaft on one side, and a plurality of second extrusion shafts are arranged corresponding to a plurality of second extrusion grooves, and a mounting plate is fixedly connected to a side of the second extrusion shaft away from the second guide block, and a splint is fixedly connected to a side of the mounting plate away from the second extrusion shaft.

[0006] Specifically, the pulling plate and the transmission plate are both fixedly connected with a partition layer on the side away from each other, and the partition layer is designed as an anti-slip structure.

[0007] Specifically, a plurality of rib plates arranged in an array are fixedly connected to the outer wall of one end of the transmission rod close to the transmission disk, and the plurality of rib plates are fixedly connected to the transmission disk.

[0008] Specifically, a support ring is fixedly connected to the middle position of the inner wall of the cannula, and the support ring is slidably connected to the transmission rod.

[0009] Specifically, the first extrusion groove is opened in a curved shape, and the first extrusion shaft is slidably connected to the first extrusion groove.

[0010] Specifically, the clamping plate is designed to be an elliptical structure, and the surface of the clamping plate has a smooth transition.

[0011] Specifically, the second extrusion groove is opened obliquely, and the second extrusion shaft is slidably connected to the second extrusion groove.

[0012] The beneficial effects of the present invention are as follows: the present invention only requires inserting a cannula into the urethra, and performing preliminary extraction of urethral stones through a splint with an elliptical structure at the front end of the cannula; after the extraction is completed, the stones are clamped again, and the stones are isolated from the inner wall of the urethra by the elliptical splint, thereby preventing irregularly shaped stones from scratching the urethra and causing damage when the stones are clamped and extracted, and thus providing a strong protective effect on the urethra. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 A schematic diagram of the main structure provided by the present invention; Figure 2 A side view schematic diagram of the structure provided by the present invention; Figure 3 A schematic diagram of the structural state provided by the present invention; Figure 4 A cross-sectional view of the cannula structure provided by the present invention; Figure 5 Provides a disassembled front view of the transmission shaft and transmission ring structure for the present invention; Figure 6 A disassembled side view of the transmission shaft and transmission ring structure is provided for the present invention; Figure 7 A cross-sectional view of the limit groove structure provided by the present invention; Figure 8 A disassembled diagram of the transmission disc structure provided by the present invention; Fig. 9 This is a cross-sectional view of the cannula and transmission disc structure provided by the present invention.

[0015] In the figure: 1. insert tube; 2. pull plate; 3. first guide rod; 4. first bracket; 5. return spring; 6. first guide block; 7. transmission ring; 8. first extrusion shaft; 9. second bracket; 10. transmission shaft; 11. first extrusion groove; 12. transmission frame; 13. transmission plate; 14. transmission rod; 15. transmission disk; 16. wear-resistant ring; 17. second extrusion groove; 18. limit groove; 19. second guide rod; 20. second guide block; 21. second extrusion shaft; 22. mounting plate; 23. splint; 24. support ring; 25. rib plate. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] like Figure 1-Figure 9As shown, a clamping device for urinary system stone surgery described in the present invention comprises a cannula 1, one end of the cannula 1 is fixedly connected to a pull plate 2, one side of the pull plate 2 is fixedly connected to a symmetrically arranged first guide rod 3, two first guide rods 3 are fixedly connected to a first bracket 4 at one end close to the pull plate 2, the two first guide rods 3 are both sleeved with a return spring 5, the two return springs 5 ​​are fixedly connected to the first bracket 4, the two first guide rods 3 are both slidably connected to a first guide block 6, the opposite sides of the two first guide blocks 6 are fixedly connected to a transmission ring 7, and the inner wall of the top end of the transmission ring 7 is fixedly connected There is a first extrusion shaft 8, one end of the two first guide rods 3 away from the first bracket 4 is fixedly connected to the second bracket 9, one end of the return spring 5 away from the first bracket 4 is fixedly connected to the second bracket 9, a transmission shaft 10 is rotatably connected between the first bracket 4 and the second bracket 9, a first extrusion groove 11 is opened on the outer wall of the transmission shaft 10, the transmission shaft 10 is movably connected to the transmission ring 7, the first extrusion shaft 8 and the first extrusion groove 11 are correspondingly arranged, the top and bottom ends of the transmission ring 7 are fixedly connected to the transmission frame 12, and the ends of the two transmission frames 12 away from the transmission ring 7 are fixedly connected to the transmission plate 13; A transmission rod 14 is fixedly connected to one end of the transmission shaft 10 away from the second bracket 9, and a transmission plate 15 is fixedly connected to one end of the transmission rod 14 away from the transmission shaft 10. A wear-resistant ring 16 is fixedly connected to the side of the transmission plate 15 away from the center. A plurality of second extrusion grooves 17 arranged in an array are provided on the transmission plate 15. A limiting groove 18 is provided corresponding to the wear-resistant ring 16 of the insert tube 1. The wear-resistant ring 16 is slidably connected to the limiting groove 18. A plurality of second guide rods 19 arranged in an array are fixedly connected to one side of the inner wall of the insert tube 1 close to the wear-resistant ring 16. A second guide block 20 is slidably connected to the second guide rod 19. A second extrusion shaft 21 is fixedly connected to one side of the plurality of second guide blocks 20. The plurality of second extrusion shafts 21 are arranged corresponding to the plurality of second extrusion grooves 17. A mounting plate 22 is fixedly connected to one side of the second extrusion shaft 21 away from the second guide block 20, and a clamping plate 23 is fixedly connected to one side of the mounting plate 22 away from the second extrusion shaft 21.

[0018] Specifically, a partition is fixedly connected to the side of the pull plate 2 and the transmission plate 13 that are away from each other. The partition is designed as an anti-slip structure to increase the friction between the fingers and the pull plate 2 and the transmission plate 13 to prevent the fingers from slipping.

[0019] Specifically, a plurality of ribs 25 arranged in an array are fixedly connected to the outer wall of one end of the transmission rod 14 close to the transmission disk 15 , and the plurality of ribs 25 are fixedly connected to the transmission disk 15 , so as to enhance the connection strength between the transmission rod 14 and the transmission disk 15 through the ribs 25 .

[0020] Specifically, a support ring 24 is fixedly connected to the middle position of the inner wall of the cannula 1, and the support ring 24 is slidably connected to the transmission rod 14, so that the transmission rod 14 is further supported by the support ring 24 to avoid deformation of the transmission rod 14 due to suspension in the middle position.

[0021] Specifically, the first extrusion groove 11 is opened in a curved shape, and the first extrusion shaft 8 is slidably connected to the first extrusion groove 11, so that the first extrusion shaft 8 can extrude the first extrusion groove 11 to rotate the extruded transmission shaft 10.

[0022] Specifically, the splint 23 is designed as an elliptical structure, and the surface of the splint 23 has a smooth transition, which is convenient for smooth insertion into the urethra and reduces scratches and damage to the inner wall of the urethra.

[0023] Specifically, the second extrusion groove 17 is opened at an angle, and the second extrusion shaft 21 is slidably connected to the second extrusion groove 17 , so that the second extrusion groove 17 can extrusion-transmit the second extrusion shaft 21 , so that the second extrusion shaft 21 moves along the second guide rod 19 through the second guide block 20 .

[0024] When in use, the index finger and the middle hand hold the pull plate 2, and after the cannula 1 is inserted into the urethra, the thumb presses the transmission plate 13, and the transmission plate 13 then drives the transmission ring 7 to move through the transmission frame 12, and the moving transmission ring 7 moves along the first guide rod 3 through the first guide block 6, and the moving transmission ring 7 then squeezes the first extrusion groove 11 provided on the transmission shaft 10 through the first extrusion shaft 8. Since the first extrusion groove 11 is provided in a curved shape, the squeezed transmission shaft 10 rotates on the first bracket 4 and the second bracket 9, and the rotating transmission shaft 10 then drives the transmission rod 14 to rotate, and the rotating transmission rod 14 then drives the transmission plate 15 to rotate, and the rotating transmission plate 15 then squeezes the second extrusion shaft 21 through the obliquely provided second extrusion groove 17, and the squeezed second extrusion shaft 21 then moves along the second guide rod 19 through the second guide block 20, and the moving second guide block 20 then drives the mounting plate 22 to move through the second extrusion shaft 21, and the moving mounting plate 22 then drives the splint 23 to move, and several splints 23 move at the same time to complete the expansion. At this time, small stones are taken out by the expanded splint 23. When several elliptical splints 23 clamp the stones to the hollow position of the splint 23, the thumb is released, and the reset spring 5 that has lost the extrusion drives the second guide block 20 to reset, and the reset second guide block 20 then drives the transmission ring 7 to reset, and the reset transmission ring 7 then drives the first extrusion shaft 8 to reset, and the reset first extrusion shaft 8 then squeezes the first extrusion groove 11, and the squeezed transmission shaft 10 then rotates and resets, and the reset transmission shaft 10 then drives the transmission disk 15 to reset through the transmission rod 14, and the reset transmission disk 15 then squeezes the second extrusion shaft 21 through the second extrusion groove 17, and the squeezed second extrusion shaft 21 then drives the mounting plate 22 and the splint 23 to reset, and the reset splint 23 then clamps the stones at the hollow position. After the clamping is completed, the cannula 1 can be pulled out.

[0025] The above shows and describes 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 above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A clamping device for urinary stone surgery, characterized in that: The invention comprises an insertion tube (1), one end of the insertion tube (1) is fixedly connected to a pull plate (2), one side of the pull plate (2) is fixedly connected to a symmetrically arranged first guide rod (3), one end of two first guide rods (3) close to the pull plate (2) is fixedly connected to a first bracket (4), the two first guide rods (3) are sleeved with a return spring (5), the two return springs (5) are fixedly connected to the first bracket (4), the two first guide rods (3) are slidably connected to a first guide block (6), the opposite side of the two first guide blocks (6) are fixedly connected to a transmission ring (7), the top inner wall of the transmission ring (7) is fixedly connected to a first extrusion shaft (8), the two first The end of the guide rod (3) away from the first bracket (4) is fixedly connected to the second bracket (9); the end of the return spring (5) away from the first bracket (4) is fixedly connected to the second bracket (9); a transmission shaft (10) is rotatably connected between the first bracket (4) and the second bracket (9); a first extrusion groove (11) is provided on the outer wall of the transmission shaft (10); the transmission shaft (10) is movably connected to the transmission ring (7); the first extrusion shaft (8) and the first extrusion groove (11) are arranged correspondingly; the top and bottom ends of the transmission ring (7) are fixedly connected to a transmission frame (12); and the ends of the two transmission frames (12) away from the transmission ring (7) are fixedly connected to a transmission plate (13); The transmission shaft (10) is fixedly connected to one end thereof away from the second bracket (9) with a transmission rod (14), and the transmission rod (14) is fixedly connected to one end thereof away from the transmission shaft (10) with a transmission disc (15). The transmission disc (15) is fixedly connected to a wear-resistant ring (16) on one side away from the center. The transmission disc (15) is provided with a plurality of second extrusion grooves (17) arranged in an array. The insert tube (1) is provided with a limiting groove (18) corresponding to the wear-resistant ring (16). The wear-resistant ring (16) is slidably connected to the limiting groove (18). The inner wall of the insert tube (1) is close to the wear-resistant ring (16). ) is fixedly connected to one side of a plurality of second guide rods (19) arranged in an array, and the second guide rods (19) are slidably connected to second guide blocks (20), and one side of the plurality of second guide blocks (20) is fixedly connected to a second extrusion shaft (21), and the plurality of second extrusion shafts (21) are arranged correspondingly to the plurality of second extrusion grooves (17), and the side of the second extrusion shaft (21) away from the second guide block (20) is fixedly connected to a mounting plate (22), and the side of the mounting plate (22) away from the second extrusion shaft (21) is fixedly connected to a clamping plate (23).

2. A clamping device for urinary stone surgery according to claim 1, characterized in that: The pulling plate (2) and the transmission plate (13) are both fixedly connected with a partition layer on the side away from each other, and the partition layer is designed as an anti-slip structure.

3. The clamping device for urinary stone surgery according to claim 1, characterized in that: A plurality of rib plates (25) arranged in an array are fixedly connected to the outer wall of one end of the transmission rod (14) close to the transmission disc (15), and the plurality of rib plates (25) are fixedly connected to the transmission disc (15).

4. A clamping device for urinary stone surgery according to claim 1, characterized in that: A support ring (24) is fixedly connected to the middle position of the inner wall of the cannula (1), and the support ring (24) is slidably connected to the transmission rod (14).

5. The clamping device for urinary stone surgery according to claim 1, characterized in that: The first extrusion groove (11) is opened in a curved shape, and the first extrusion shaft (8) is slidably connected to the first extrusion groove (11).

6. The clamping device for urinary stone surgery according to claim 1, characterized in that: The clamping plate (23) is designed to be an elliptical structure, and the surface of the clamping plate (23) has a smooth transition.

7. The clamping device for urinary stone surgery according to claim 1, characterized in that: The second extrusion groove (17) is opened at an angle, and the second extrusion shaft (21) is slidably connected to the second extrusion groove (17).

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