Urinary plasma snare

Abstract

The utility model discloses a plasma snare for urinary use, and relates to the technical field of loop instruments. Comprising a piston cylinder, a pipe sheath is arranged on one side of the piston cylinder, a handle is arranged on the other side of the piston cylinder, a sliding groove is formed in the middle of the piston cylinder, a connecting block is inserted into the left end of the sliding groove, a threaded rod is rotationally connected to the middle of the connecting block, and a rotary knob is fixedly connected to one end of the threaded rod; the other end of the threaded rod is in threaded connection with a top plate, and a counter-recoil spring is clamped to the side face of the top plate. The connecting pipe is arranged to combine and fix the pipe sheath, the positioning frame with the pipe breaking tool bit and the pipe cutting tool bit is arranged to cut and peel the pipe sheath, the pipe sheath extending out of the connecting pipe can be conveniently cut and adjusted, and meanwhile, a part for cutting is arranged as a connecting and fixing structure of the piston cylinder and the handle, so that the pipe sheath is more convenient to use. And the tube sheath and the inner core can be conveniently cut and adjusted at any time in the device assembling process.

Description

Technical Field

[0001] This utility model relates to the field of ring-ringing devices, specifically a plasma ring-ringing device for urinary applications. Background Technology

[0002] The snare device is currently widely used in gastroenterology for polyp removal via gastroscopy and colonoscopy. It is minimally invasive, inexpensive, causes little trauma, and allows for rapid recovery.

[0003] In existing technologies, urology requires smaller surgical instruments compared to gastroenterology. The sheath and other structures also need to be adjusted according to changes in the patient's body size. Common ringing devices lack cutting and adjustment structures for the sheath and inner core, making cutting and adjustment inconvenient. Utility Model Content

[0004] This invention provides a plasma snare for urinary applications to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plasma snare for urinary use, comprising a piston cylinder, a sheath provided on one side of the piston cylinder, and a handle provided on the other side of the piston cylinder;

[0006] The piston cylinder has a groove in the middle, a connecting block is inserted into the left end of the groove, a threaded rod is rotatably connected to the middle of the connecting block, a knob is fixedly connected to one end of the threaded rod, a top plate is threaded to the other end of the threaded rod, a return spring is snapped into the side of the top plate, a sleeve is rotatably connected to the right end of the groove, a pull handle is slidably connected to the outside of the piston cylinder, a hook is fixedly connected to the side of the pull handle, and slots are provided at the left ends of both the piston cylinder and the connecting block.

[0007] The inner core is inserted inside the sheath. One end of the inner core is provided with a circular part. The other end of the inner core is tied and connected with a positioning ring. One end of the sheath is provided with a thickened ring. The other end of the sheath is sleeved with a connecting tube. A branch tube is fixedly connected to the side of the connecting tube. A fastening bolt is threaded to the side of the branch tube. An electrode is snapped and fixed to the side of the connecting tube.

[0008] A sleeve is fixedly connected to the right side of the handle, a positioning frame is inserted inside the sleeve, a limit groove is opened at the lower end of the positioning frame, a pipe-breaking cutter head is threaded to the lower end of the positioning frame, a baffle is provided on the inner side of the positioning frame, a pipe-cutting cutter head is inserted into the upper end of the positioning frame, and a handle is fixedly connected to the upper end of the positioning frame.

[0009] Furthermore, the side of the slide groove is provided with a hollowed-out design and the inner wall is set as a flat surface. The middle part of the pull handle extends into the interior of the slide groove through the hollowed-out design, and a hole with a diameter larger than the outer diameter of the sleeve is opened at the central axis of the slide groove. The threaded rod passes through the above-mentioned hole and is inserted into the sleeve. The right end of the recoil spring is engaged with the pull handle.

[0010] Furthermore, the sleeve is nested at the left end of the piston cylinder, the piston cylinder is aligned with the slot on the connecting block, the positioning frame is inserted into and connected to the slot, and the slot is perpendicular to the piston cylinder.

[0011] Furthermore, the sheath has an opening inside the connecting pipe and extends into the branch pipe, the bolt portion of the fastening bolt squeezes the sheath and fits tightly against the inside of the branch pipe, and the end of the sheath extends out from the branch pipe.

[0012] Furthermore, the connecting tube is threaded to the right end of the piston cylinder, the inner core extends from the opening of the tube sheath and is wound and connected to the positioning ring, the electrode is fixed at the end of the inner core, the electrode passes through the side wall of the connecting tube from the inside and is snapped together, and the hook extends through the right side wall of the piston cylinder to the inside of the connecting tube and is hooked together.

[0013] Furthermore, the limiting groove is set in a semi-circular arc shape, the limiting groove is inclined at the bottom of the positioning frame, the lower end of the tube breaking cutter head extends into the limiting groove, and the length of the tube breaking cutter head inside the limiting groove is greater than the thickness of the tube sheath sidewall and less than the inner diameter of the tube sheath.

[0014] Furthermore, the pipe cutting head is inserted into the left side of the positioning frame and fixed by a spring clip, the right end of the pipe cutting head is inserted into the right inner wall of the positioning frame, and the blade edge of the pipe cutting head is set to a concave arc shape.

[0015] Compared with the prior art, this utility model provides a plasma snare device for urinary tract use, which has the following beneficial effects:

[0016] This urinary plasma snare uses a connecting tube to fix the sheath in place. A positioning frame with a tube-breaking and tube-cutting blade is used to cut and peel the sheath, facilitating the cutting and adjustment of the sheath extending from the connecting tube. At the same time, the cutting component also serves as a connection and fixing structure between the piston cylinder and the handle, allowing for easy cutting and adjustment of the sheath and inner core during device assembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the piston cylinder of this utility model;

[0019] Figure 3 This is a schematic diagram of the positioning frame structure of this utility model.

[0020] In the diagram: 1. Piston cylinder; 11. Slide groove; 12. Connecting block; 13. Threaded rod; 14. Knob; 15. Top plate; 16. Rebound spring; 17. Sleeve; 18. Pull handle; 19. Hook; 110. Slot; 2. Tube sheath; 21. Inner core; 22. Circular part; 23. Positioning ring; 24. Thickened ring; 25. Connecting pipe; 26. Branch pipe; 27. Fastening bolt; 28. Electrode; 3. Handle; 31. Sleeve; 32. Positioning frame; 33. Limiting groove; 34. Pipe breaking cutter head; 35. Baffle; 36. Pipe cutting cutter head; 37. Cutter handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This utility model discloses a plasma snare for urinary use, including a piston cylinder 1, a sheath 2 on one side of the piston cylinder 1, and a handle 3 on the other side of the piston cylinder 1.

[0023] The piston cylinder 1 has a groove 11 in the middle. A connecting block 12 is inserted into the left end of the groove 11. A threaded rod 13 is rotatably connected to the middle of the connecting block 12. A knob 14 is fixedly connected to one end of the threaded rod 13. A top plate 15 is threaded to the other end of the threaded rod 13. A return spring 16 is snapped into the side of the top plate 15. A sleeve 17 is rotatably connected to the right end of the groove 11. A pull handle 18 is slidably connected to the outside of the piston cylinder 1. A hook 19 is fixedly connected to the side of the pull handle 18. Slots 110 are provided at the left ends of both the piston cylinder 1 and the connecting block 12.

[0024] An inner core 21 is inserted inside the sheath 2. One end of the inner core 21 is provided with a ring portion 22. The other end of the inner core 21 is bound and connected with a positioning ring 23. One end of the sheath 2 is provided with a thickened ring 24. The other end of the sheath 2 is sleeved with a connecting tube 25. A branch tube 26 is fixedly connected to the side of the connecting tube 25. A fastening bolt 27 is threadedly connected to the side of the branch tube 26. An electrode 28 is snapped and fixed to the side of the connecting tube 25.

[0025] A sleeve 31 is fixedly connected to the right side of the handle 3. A positioning frame 32 is inserted into the inside of the sleeve 31. A limit groove 33 is provided at the lower end of the positioning frame 32. A pipe-breaking cutter head 34 is threadedly connected to the lower end of the positioning frame 32. A baffle 35 is provided on the inner side of the positioning frame 32. A pipe-cutting cutter head 36 is inserted into the upper end of the positioning frame 32. A handle 37 is fixedly connected to the upper end of the positioning frame 32.

[0026] Specifically, the side of the slide groove 11 is hollowed out and the inner wall is flat. The middle part of the pull handle 18 extends into the interior of the slide groove 11 through the hollowed-out part, and a hole with a diameter larger than the outer diameter of the sleeve 17 is opened at the central axis of the slide groove 11. The threaded rod 13 passes through the hole and is inserted into the sleeve 17. The right end of the recoil spring 16 is engaged with the pull handle 18.

[0027] In this embodiment, the inner wall of the slide groove 11 is set as a flat surface, which limits the angle between the connecting block 12 and the top plate 15 inside the slide groove 11 and prevents the connecting block 12 and the top plate 15 from deflecting inside the slide groove 11. By rotating the threaded rod 13 through the knob 14, the thread action drives the top plate 15 to slide along the threaded rod 13 inside the slide groove 11, thereby adjusting the compression degree of the recoil spring 16 without moving the handle 18, and thus playing a certain role in adjusting the resistance generated by the compression of the recoil spring 16 when the handle 18 slides.

[0028] Specifically, the sleeve 31 is nested at the left end of the piston cylinder 1, the piston cylinder 1 is aligned with the slot 110 on the connecting block 12, the positioning frame 32 is inserted into and connected to the slot 110, and the slot 110 is perpendicular to the piston cylinder 1.

[0029] In this embodiment, the sleeve 31 connects the handle 3 and the piston cylinder 1, and the positioning frame 32 is inserted to position the piston cylinder 1 and the connecting block 12.

[0030] Specifically, the sheath 2 has an opening inside the connecting pipe 25 and extends into the branch pipe 26. The screw portion of the fastening bolt 27 presses against the sheath 2 and fits tightly against the inside of the branch pipe 26. The end of the sheath 2 extends out from the branch pipe 26.

[0031] In this embodiment, the sheath 2 extends into the connecting pipe 25 and the branch pipe 26, and the sheath 2 is fixed by the fastening bolt 27 to prevent the sheath 2 from sliding in the connecting pipe 25.

[0032] Specifically, the connecting tube 25 is threaded to the right end of the piston cylinder 1, the inner core 21 extends out from the opening of the tube sheath 2 and is wound and connected to the positioning ring 23, the electrode 28 is fixed at the end of the inner core 21, the electrode 28 passes through the inner side of the connecting tube 25 and is snapped together, and the hook 19 extends through the right side wall of the piston cylinder 1 into the inside of the connecting tube 25 and is hooked together.

[0033] In this embodiment, the inner core 21 is folded and inserted into the tube sheath 2. The folded part is bent at one end of the tube sheath 2 to form a ring 22. The end of the inner core 21 is led out from the opening of the tube sheath 2 and connected to two electrodes 28 respectively. The inner core 21 is connected to the positioning ring 23 by winding, so that the pull handle 18 can pull the inner core 21 through the hook 19, so that it slides out of the tube sheath 2, thereby causing the ring 22 to contract under the pressure of the inner wall of the tube sheath 2.

[0034] Specifically, the limiting groove 33 is set in a semi-circular arc shape, the limiting groove 33 is inclined at the bottom of the positioning frame 32, the lower end of the tube breaking cutter head 34 extends into the limiting groove 33, and the length of the part of the tube breaking cutter head 34 inside the limiting groove 33 is greater than the side wall thickness of the tube sheath 2 and less than the inner diameter of the tube sheath 2.

[0035] In this embodiment, the semi-circular limiting groove 33 limits the sheath 2. By sliding the sheath 2 in the limiting groove 33, the pipe breaking cutter head 34 slides across the side wall of the sheath 2, breaking the side wall of the sheath 2. This adjusts the position of the sheath 2 in the opening of the connecting pipe 25. The pipe breaking cutter head 34 is connected to the positioning frame 32 by a thread, which facilitates disassembly and replacement.

[0036] Specifically, the pipe cutting head 36 is inserted into the left side of the positioning frame 32 and fixed by a spring clip. The right end of the pipe cutting head 36 is inserted into the right inner wall of the positioning frame 32, and the blade of the pipe cutting head 36 is set to a concave arc shape.

[0037] In this embodiment, the pipe cutting head 36 is connected to the positioning frame 32 by a plug-in connection, which facilitates the disassembly and replacement of the positioning frame 32. The cutting edge of the pipe cutting head 36 is set to be arc-shaped to expand the contact surface between the cutting edge and the pipe sheath 2, which facilitates the cutting of the pipe sheath 2.

[0038] In use, the sheath 2 with the inner core 21 inserted inside is taken out. According to the patient's physical condition during urological surgery, the appropriate length of the sheath 2 is cut. After leaving a certain length, the position to be cut is placed against the blade of the tube cutting head 36. The sheath 2 is cut by rotating the sheath 2. The sheath 2 is fitted into the limiting groove 33 and pulled out, so that the tube breaking head 34 cuts through the side wall of the sheath 2. The exposed inner core 21 is wrapped around the positioning ring 23 and tightened. The sheath 2 is inserted into the connecting tube 25. The cut sheath 2 is flipped to the side and introduced into the branch tube 26. The fastening bolt 27 is tightened to squeeze and fix the sheath 2. The exposed inner core 21 of the sheath 2 is wrapped into a ring and coiled inside the connecting tube 25. The electrode 28 is inserted into the side wall of the connecting tube 25 from the inside. The electrode 28 is led out from the side of the connecting tube 25 and connected to common plasma devices on the market.

[0039] Hang the positioning ring 23 on the hook 19, connect the connecting tube 25 to the piston cylinder 1 by thread, put the recoil spring 16 on the outside of the threaded rod 13 and snap it into the top plate 15, insert the connecting block 12 into the piston cylinder 1 and insert the threaded rod 13 into the sleeve 17 for connection, and place the other end of the recoil spring 16 against the side of the pull handle 18. Turn the knob 14 to adjust the position of the top plate 15, and then adjust the tightness of the recoil spring 16. Then insert the piston cylinder 1 into the sleeve 31 and insert the positioning frame 32 from the side of the sleeve 31 so that the positioning frame 32 is simultaneously inserted into the slot 110 on the piston cylinder 1 and the connecting block 12 to complete the assembly of the device.

[0040] When looping the ring, the ring 22 is placed over the outside of the tissue area with the ring. The palm is placed on the handle 3, and the fingers are used to pull the pull handle 18, which moves the pull handle 18 closer to the handle 3. This pulls the inner core 21 to contract in the sheath 2, thereby tightening the ring 22 and completing the looping action. The plasma device is connected to the inner core 21 by the electrode 28, and the diseased area is cut as the ring 22 tightens.

[0041] In summary, this urinary plasma snare uses a connecting tube 25 to fix the sheath 2 in place. A positioning frame 32 with a tube-breaking cutter 34 and a tube-cutting cutter 36 cuts and peels the sheath 2, facilitating cutting and adjustment of the sheath 2 extending from the connecting tube 25. The sheath 2 is connected to the device via a branch tube 26 and fastening bolts 27, allowing for adaptive adjustment and installation of sheaths 2 with different inner and outer diameters and lengths. Simultaneously, the cutting component also serves as a connection and fixing structure between the piston cylinder 1 and the handle 3, facilitating cutting and adjustment of the sheath 2 and inner core 21 during device assembly.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma snare for urinary use, comprising a piston cylinder (1), characterized in that: A sheath (2) is provided on one side of the piston cylinder (1), and a handle (3) is provided on the other side of the piston cylinder (1); The piston cylinder (1) has a groove (11) in the middle. A connecting block (12) is inserted into the left end of the groove (11). A threaded rod (13) is rotatably connected to the middle of the connecting block (12). A knob (14) is fixedly connected to one end of the threaded rod (13). A top plate (15) is threaded to the other end of the threaded rod (13). A recoil spring (16) is snapped into the side of the top plate (15). A sleeve (17) is rotatably connected to the right end of the groove (11). A pull handle (18) is slidably connected to the outside of the piston cylinder (1). A hook (19) is fixedly connected to the side of the pull handle (18). A slot (110) is provided at the left end of both the piston cylinder (1) and the connecting block (12). The inner core (21) is inserted inside the sheath (2). One end of the inner core (21) is provided with a ring (22). The other end of the inner core (21) is tied and connected with a positioning ring (23). One end of the sheath (2) is provided with a thickening ring (24). The other end of the sheath (2) is sleeved with a connecting tube (25). A branch tube (26) is fixedly connected to the side of the connecting tube (25). A fastening bolt (27) is threadedly connected to the side of the branch tube (26). An electrode (28) is snapped and fixed to the side of the connecting tube (25). A sleeve (31) is fixedly connected to the right side of the handle (3). A positioning frame (32) is inserted inside the sleeve (31). A limit groove (33) is opened at the lower end of the positioning frame (32). A pipe-breaking cutter head (34) is threadedly connected to the lower end of the positioning frame (32). A baffle (35) is provided on the inner side of the positioning frame (32). A pipe-cutting cutter head (36) is inserted at the upper end of the positioning frame (32). A handle (37) is fixedly connected to the upper end of the positioning frame (32).

2. The plasma snare for urinary use according to claim 1, characterized in that: The side of the slide groove (11) is hollowed out and the inner wall is flat. The middle part of the pull handle (18) extends into the slide groove (11) through the hollowed-out part, and a hole with a diameter larger than the outer diameter of the sleeve (17) is opened at the central axis of the slide groove (11). The threaded rod (13) passes through the hole and is inserted into the sleeve (17). The right end of the recoil spring (16) is engaged with the pull handle (18).

3. The plasma snare for urinary use according to claim 1, characterized in that: The sleeve (31) is nested at the left end of the piston cylinder (1). The piston cylinder (1) is aligned with the slot (110) on the connecting block (12). The positioning frame (32) is inserted into the slot (110). The slot (110) is perpendicular to the piston cylinder (1).

4. A plasma snare for urinary use according to claim 1, characterized in that: The sheath (2) has an opening inside the connecting pipe (25) and extends into the branch pipe (26). The screw portion of the fastening bolt (27) presses against the sheath (2) and fits tightly against the inside of the branch pipe (26). The end of the sheath (2) extends out from the branch pipe (26).

5. A plasma snare for urinary use according to claim 4, characterized in that: The connecting tube (25) is threaded to the right end of the piston cylinder (1). The inner core (21) extends out from the opening of the tube sheath (2) and is wound and connected to the positioning ring (23). The electrode (28) is fixed at the end of the inner core (21). The electrode (28) passes through the inner side of the connecting tube (25) through the side wall of the connecting tube (25) and is snapped together. The hook (19) extends through the right side wall of the piston cylinder (1) into the inside of the connecting tube (25) and is hooked and connected to the hook (19).

6. A plasma snare for urinary use according to claim 1, characterized in that: The limiting groove (33) is set in a semi-circular arc shape. The limiting groove (33) is inclined at the bottom of the positioning frame (32). The lower end of the tube breaking cutter (34) extends into the limiting groove (33). The length of the part of the tube breaking cutter (34) inside the limiting groove (33) is greater than the thickness of the side wall of the tube sheath (2) and less than the inner diameter of the tube sheath (2).

7. A plasma snare for urinary use according to claim 1, characterized in that: The tube cutting head (36) is inserted into the left side of the positioning frame (32) and fixed by a spring clip. The right end of the tube cutting head (36) is inserted into the right inner wall of the positioning frame (32). The blade of the tube cutting head (36) is set to be a concave arc shape.

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