Integrated wire pushing and cutting tool
By designing an integrated endoscopic surgical tool, the problem of cumbersome operation after suture is solved during surgery, the suture is fixed, pushed and sheared, and the surgical efficiency is improved.
Patent Information
- Application Number
- CN202420654065.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-30
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-30
AI Technical Summary
In endoscopic surgery, multiple operations are required after suturing the wound. The steps are cumbersome and the tools are diverse, which affects efficiency.
An integrated wire push-cutting tool is designed, including grip, outer tube, fixed tube and inner core. Through a series of switches and structural designs, the sewing is fixed, pushed and sheared, and the operation steps are simplified.
The tool combines the push and thread cutting operations into one, reducing the operating steps during the operation, improving the operating efficiency, and because of its compact design, it is suitable for minimally invasive surgery.
Smart Images
Figure CN222466980U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of medical devices, and in particular to an integrated wire pushing and cutting tool. Background Art
[0002] In the actual process of clinical minimally invasive surgery, endoscopic suturing of wounds is often used. After the suturing is completed, the sutures are tied and fixed. The current generally adopted method is that the operator sews the internal tissues, ties a slipknot on the outside of the wound, and then uses a thread pusher to push the slipknot into the inside to tighten the suture knot to complete the knot, and then uses wire cutters to reach into the inside to cut off the excess suture knot. This operation method is cumbersome and requires the use of multiple tools to complete. Utility Model Content
[0003] In order to simplify the steps of wound suturing during endoscopic surgery, the present application provides an integrated thread pushing and cutting tool.
[0004] The integrated wire pushing and cutting tool provided by the present application adopts the following technical solution:
[0005] An integrated wire pushing and cutting tool comprises a handle, an outer tube, a fixed tube and an inner core;
[0006] The handle is configured as a housing, and a first switch for controlling the inner core to rotate along the central axis and a second switch for controlling the outer tube to move along the length direction are disposed on the handle;
[0007] One end of the fixing tube is fixed on the handle, and the other end is provided with a spiral groove for placing the suture, and the slipknot is pushed to the front end through the spiral groove to complete the knotting;
[0008] The inner core is arranged inside the fixing tube and can rotate along the axis of the fixing tube. One end of the inner core is connected to the first switch, and the other end is arranged flush with the end of the fixing tube away from the handle. The end away from the handle is provided with a fixing groove for fixing the suture. The inner core is controlled by the first switch arranged on the handle to rotate the suture in the fixing groove into the spiral groove.
[0009] The outer tube is arranged outside the fixed tube and can move along the axis of the fixed tube. One end of the outer tube is connected to the second switch, and the other end is arranged flush with the end of the fixed tube away from the handle. A cutting edge is arranged at the end of the outer tube away from the handle, and the suture is cut through the cutting edge.
[0010] By adopting the above technical solution, the user first turns the first switch to the on position, places the suture in the fixed groove opened at the end of the inner core, and then turns the first switch to the off position. At this time, the inner core rotates to fix the suture in the spiral groove, and the thread pushing and cutting tool pushes the slipknot along the suture to the inside to tighten the suture slipknot. Then, by pushing the second switch, the outer tube moves along the length direction toward the spiral groove, and the excess suture knots are cut off by the provided cutting edge and the fixed tube. The above structure simplifies the operating steps, and the original thread pusher and wire cutter are integrated into one design. It is only necessary to tie a slipknot on the outside, and the two steps of knotting and thread cutting can be completed using the integrated thread pushing and cutting tool.
[0011] Preferably, the fixing groove is L-shaped.
[0012] By adopting the above technical solution, the fixing groove is set to be L-shaped, the movable position of the suture becomes smaller, and the suture is fixed in the groove more accurately without falling off.
[0013] Preferably, a first switch slot for movement of the first switch is provided at the handle, the first switch slot is perpendicular to the axis of the inner core, and the first switch controls the rotation of the inner core by lateral movement, and the rotation angle is ≥90°.
[0014] By adopting the above technical solution, the inner core is rotated by the first switch, and the rotation angle is ≥90°, which makes it convenient to transfer the suture in the L-shaped groove into the spiral groove, converting the linear motion into rotation, and facilitating the operation of the first switch.
[0015] Preferably, the spiral groove pitch is set to 15-18 mm, the groove width is ≤1.3 mm, and the groove length is ≤7~8 mm.
[0016] By adopting the above technical solution, the groove design makes it easy to put the suture in and cooperate with the inner core to fix the suture.
[0017] Preferably, a second switch slot for the second switch to move is provided at the handle, the second switch slot is arranged parallel to the axial direction of the outer tube, and the outer tube and the second switch are integrally formed.
[0018] By adopting the above technical solution, the outer tube and the second switch are integrated into one, and the second switch is moved in the second switch slot to carry the outer tube to move along the axial direction, which makes it easier for the second switch to control the outer tube and the operator to cut the suture.
[0019] Preferably, a return spring is arranged at one end of the second switch and the handle close to the spiral groove.
[0020] By adopting the above technical solution and arranging a reset spring, it is convenient for the outer tube to rebound and reset after the second switch pushes the suture to be cut toward one end of the spiral groove to meet the requirements of the next suture cutting.
[0021] Preferably, the outer tube cutting edge is V-shaped.
[0022] By adopting the above technical solution, the cutting edge is set to be V-shaped, which makes it easier for the cutting edge to cut the suture.
[0023] Preferably, the cutting edge angle is set to 14°~20°.
[0024] By adopting the above technical solution, the blade angle is set to 14°~20°, and the blade is sharper, which is convenient for cutting the suture.
[0025] Preferably, there is a certain distance between the first switch and the second switch.
[0026] By adopting the above technical solution, a certain distance between the first switch and the second switch can effectively prevent users from making operating errors.
[0027] Preferably, the fixed tube, the inner core and the outer tube are all metal parts, the inner core diameter R1 is 2.2 mm ≤ R1 ≤ 2.5 mm, and the inner diameter R 2内 2.5mm<R 2内 ≤2.8mm, outer diameter R 2外 3.8mm≤R 2外 ≤4mm, the inner diameter of the outer tube R 3内 4mm<R 3内 ≤4.2mm, outer diameter R 3外 5.8mm≤R 3外 ≤6mm.
[0028] By adopting the above technical solution, the fixed tube, the inner core and the outer tube are configured as metal parts and cooperate with each other. The structure is compact and occupies little space, which is convenient for minimally invasive surgery and suturing of wounds with smaller incisions.
[0029] In summary, the present application includes at least one of the following beneficial technical effects:
[0030] 1. The user first turns the first switch to the on position, places the suture in the fixed groove opened at the end of the inner core, and then turns the first switch to the off position. At this time, the inner core rotates to fix the suture in the spiral groove. The push-thread and wire-cutting tool pushes the slipknot along the suture to the inside to tighten the suture slipknot. Then, by pushing the second switch, the outer tube moves along the length direction toward the spiral groove, and the excess suture knot is cut off by the provided cutting edge and the fixed tube. The above structure simplifies the operation steps, and the original pusher and wire cutter are integrated into one design. Only the slipknot needs to be tied on the outside, and the integrated push-thread and wire-cutting tool can be used to complete the two steps of knotting and wire cutting.
[0031] 2. Set the fixing groove to L-shape, the movable position of the suture becomes smaller, and the suture is fixed in the slot more accurately without falling off;
[0032] 3. A certain distance between the first switch and the second switch can effectively prevent users from making operating errors. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 This is a schematic diagram of the structure of an integrated wire pushing and cutting tool of the present application.
[0034] Figure 2 yes Figure 1 A partial enlarged view.
[0035] Figure 3 This is a schematic diagram of the internal structure of the grip.
[0036] Explanation of the accompanying drawings: 1. handle; 11. first switch slot; 12. second switch slot; 2. outer tube; 21. second switch; 211. moving block; 212. second limit plate; 213. return spring; 22. cutting edge; 3. fixed tube; 31. spiral groove; 32. fixed plate; 4. inner core; 41. first switch; 42. fixed slot; 43. middle piece; 431. transmission column; 44. first limit plate; 441. limit hole. DETAILED DESCRIPTION
[0037] The following is combined with Figure 1-3 This application is described in further detail.
[0038] The present application embodiment discloses an integrated wire pushing and cutting tool. Figure 1 The integrated wire pushing and cutting tool comprises a handle 1, an outer tube 2, a fixed tube 3 and an inner core 4.
[0039] Reference Figure 1 The handle 1 is configured as a square housing, and one end of the handle has holes for the outer tube 2, the fixed tube 3 and the inner core 4 to pass through. The handle 1 is also provided with switches for controlling the inner core 4 and the outer tube 2, namely, a first switch 41 and a second switch 21.
[0040] Reference Figure 3 Specifically, the first end of the fixing tube 3 is fixed inside the handle 1 through a fixing plate 32 provided inside the handle 1 shell, and the second end passes through the hole opened on the handle 1 and extends along the axis. The distance between the second end and the handle 1 can be set to 190-200mm. The fixing tube 3 is set to a metal round tube, wherein the outer diameter R of the fixing tube 3 is 2外 Set to 3.8mm≤R 2外 ≤4mm, fixed tube 3 inner diameter R 2内 Set to 2.5mm<R 2内≤2.8mm, a spiral groove 31 is provided at the second end of the fixed tube 3, the pitch of the spiral groove 31 is set to 15-18mm, the groove width is ≤1.3mm, and the groove length is ≤7~8mm. After the suture is placed in the spiral groove 31, the slipknot is pushed to the front end through the spiral groove 31 to complete the knotting.
[0041] Reference Figure 2 , 3 The inner core 4 is a metal core. Specifically, the diameter R1 of the inner core 4 is set to 2.2mm≤R1≤2.5mm. The inner core 4 is set inside the fixed tube 3 and can rotate along the axis of the fixed tube 3. The first end of the inner core 4 is flush with the end of the fixed tube 3 where the spiral groove 31 is opened, and this end is provided with a fixing groove 42 for fixing the suture. The fixing groove 42 is L-shaped, and the length is greater than the length of the spiral groove 31, which can be specifically set to 10-12mm. The suture is placed in the fixing groove 42 opened at the end of the inner core 4, and the suture is stuck in the spiral groove 31 set in the fixed tube 3 by the rotation of the inner core 4 in the fixed tube 3.
[0042] Reference Figure 3 The second end of the inner core 4 is arranged inside the handle 1, specifically, it is located on one side of the first end of the fixed tube 3, and the distance from the first end of the fixed tube 3 can be set to 10mm. The inner core 4 is connected to the first switch 41 through an intermediate member 43. Specifically, the intermediate member 43 is arranged as a cam structure, and the center of the larger end of the cam coincides with the axis where the inner core 4 is located, and is fixedly connected to the inner core 4. First limiting plates 44 are arranged on both sides of the intermediate member 43, and the first limiting plates 44 are fixed inside the handle 1. The first limiting plates 44 are provided with limiting holes 4 for the inner core 4 to pass through. 41, the middle piece 43 and the inner core 4 can rotate in the limiting hole 441, a transmission column 431 is set on the center of the smaller side of the cam, the first switch 41 is set in a U shape, the transmission column 431 is stuck in the U-shaped slot, and the first switch slot 11 for the first switch 41 to move is set at the handle 1. The first switch slot 11 is perpendicular to the axis of the inner core 4. The first switch 41 moves horizontally in the first switch slot 11, and at the same time drives the middle piece 43 to rotate along the axis of the inner core 4, and then drives the inner core 4 to rotate along its central axis, and the rotation angle is ≥90°.
[0043] Reference Figure 1 , Figure 2 The outer tube 2 is a metal tube, which is sleeved on the outside of the fixed tube 3. The outer diameter of the outer tube 2 is R 3外 5.8mm≤R 3外 ≤6mm, inner hole diameter R 3内 4mm<R 3内 ≤4.2mm, a cutting edge 22 is provided at one end of the fixing tube 3 close to the spiral groove 31, and the suture is cut through the cutting edge 22. Specifically, the cutting edge 22 is set to be V-shaped, and the angle is set to 14°~20°, so as to facilitate cutting the suture.
[0044] Reference Figure 3 The other end of the outer tube 2 is fixedly connected to the second switch 21, the second switch 21 is placed below the first end of the fixed tube 3, the part connected to the outer tube 2 is arranged to form a cross-shaped moving block 211, a second limiting plate 212 for the moving block 211 to move is arranged inside the handle 1, a second switch slot 12 for the second switch 21 to move is provided at the handle 1, the second switch slot 12 is arranged parallel to the axial direction of the outer tube 2, the second switch 21 can push the outer tube 2 toward the second end of the fixed tube 3 along the second switch slot 12, and cut the suture through the cutting edge 22.
[0045] Reference Figure 3 A reset spring 213 is arranged between the moving direction of the moving block 211 and the second limiting plate 212, so that the outer tube 2 rebounds and resets to meet the next suture cutting after the second switch 21 pushes the suture cutting toward one end of the spiral groove 31.
[0046] The implementation principle of the integrated thread pushing and cutting tool in the embodiment of the present application is as follows: the user first turns the first switch 41 to the on position, places the suture in the fixed groove 42 opened at the end of the inner core 4, and then turns the first switch 41 to the off position. At this time, the inner core 4 rotates to fix the suture in the spiral groove 31, and the thread pushing and cutting tool pushes the slipknot along the suture to the inside to tighten the suture slipknot. Then, by pushing the second switch 21, the outer tube 2 moves along the length direction toward the spiral groove 31, and the excess suture knots are cut off by the provided cutting edge 22 and the fixed tube 3. The above structure simplifies the operation steps, and the original thread pusher and wire cutter are integrated into one design. Only the slipknot needs to be tied on the outside, and the two steps of knotting and thread cutting can be completed using the integrated thread pushing and cutting tool.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An integrated wire pushing and cutting tool, characterized in that: It comprises a handle (1), an outer tube (2), a fixing tube (3) and an inner core (4); The handle (1) is configured as a housing, and a first switch (41) for controlling the inner core (4) to rotate along the central axis, and a second switch (21) for controlling the outer tube (2) to move along the length direction are arranged on the handle (1); One end of the fixing tube (3) is fixed on the handle (1), and the other end is provided with a spiral groove (31) for placing the suture, and the slipknot is pushed toward the front end through the spiral groove (31) to complete the knotting; The inner core (4) is arranged inside the fixing tube (3), and the inner core (4) can rotate along the axis of the fixing tube (3), one end of the inner core (4) is connected to the first switch (41), and the other end is arranged flush with the end of the fixing tube (3) away from the handle (1), and a fixing groove (42) for fixing the suture is arranged at the end away from the handle (1), and the first switch (41) arranged on the handle (1) controls the inner core (4) to rotate the suture in the fixing groove (42) into the spiral groove (31); The outer tube (2) is arranged outside the fixed tube (3) and can move along the axis of the fixed tube (3). One end of the outer tube (2) is connected to the second switch (21), and the other end is arranged flush with the end of the fixed tube (3) away from the handle (1). A cutting edge (22) is arranged at the end of the outer tube (2) away from the handle (1), and the suture is cut through the cutting edge (22).
2. The integrated wire pushing and cutting tool according to claim 1, characterized in that: The fixing groove (42) is L-shaped.
3. The integrated wire pushing and cutting tool according to claim 1, characterized in that: The handle (1) is provided with a first switch slot (11) for the first switch (41) to move, the first switch slot (11) being perpendicular to the axis of the inner core (4), and the first switch (41) controls the rotation of the inner core (4) by lateral movement.
4. The integrated wire pushing and cutting tool according to claim 1, characterized in that: The pitch of the spiral groove (31) is set to 15-18 mm, the groove width is ≤1.3 mm, and the groove length is ≤7-8 mm.
5. The integrated wire pushing and cutting tool according to claim 1, characterized in that: The handle (1) is provided with a second switch slot (12) for the second switch (21) to move, the second switch slot (12) is arranged parallel to the axial direction of the outer tube (2), and the outer tube (2) and the second switch (21) are integrally formed.
6. The integrated wire pushing and cutting tool according to claim 1, characterized in that: A return spring (213) is disposed between the second switch (21) and one end of the handle (1) close to the spiral groove (31).
7. The integrated wire pushing and cutting tool according to claim 1, characterized in that: The cutting edge (22) of the outer tube (2) is V-shaped.
8. The integrated wire pushing and cutting tool according to claim 1, characterized in that: The angle of the cutting edge (22) is set to 14° to 20°.
9. The integrated wire pushing and cutting tool according to claim 1, characterized in that: There is a certain distance between the first switch (41) and the second switch (21).
10. The integrated wire pushing and cutting tool according to claim 1, characterized in that: The fixed tube (3), the inner core (4) and the outer tube (2) are all metal parts. The diameter R1 of the inner core (4) is 2.2 mm ≤ R1 ≤ 2.5 mm. The inner diameter R1 of the fixed tube (3) is 2内 2.5mm<R 2内 ≤2.8mm, outer diameter R 2外 3.8mm≤R 2外 ≤4mm, the inner diameter R of the outer tube (2) 3内 4mm<R 3内 ≤4.2mm, outer diameter R 3外 5.8mm≤R 3外 ≤6mm.