Guiding type linear cutting anastomat
By adding metal guide sheets to the linear cutting stapler, changing the contact between the firing twee sheet and the sling sheet, the problem of great resistance in the prior art is solved, and lighter surgical operations and higher efficiency are achieved.
Patent Information
- Application Number
- CN202422130196.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-01
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-09-01
AI Technical Summary
The existing linear cutting stapler has greater resistance when the firing thrust handle is pushed forward for cutting and anastomosis, which makes surgical operation difficult.
A guide-type linear cutting stapler is designed to change the contact and stress mode and reduce resistance by adding a metal guide sheet between the metal firing thrust sheet and the plastic thrust sheet.
By adding guide tablets, resistance is reduced, surgical operation is more labor-saving, easy for doctors to operate, and improved surgical efficiency.
Smart Images
Figure CN222899203U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a guiding linear cutting stapler. Background Art
[0002] Staplers are medical devices that replace manual suturing. Their main working principle is to use titanium nails to separate or staple tissues, similar to staplers. According to different application scopes, they can be mainly divided into skin staplers, digestive tract (esophagus, gastrointestinal, etc.) circular staplers, rectal staplers, circular hemorrhoid staplers, circumcision staplers, vascular staplers, hernia staplers, lung cutting staplers, etc.
[0003] The existing linear cutting stapler has a large resistance when the firing handle is pushed forward for cutting and anastomosis. The metal firing push piece contacts and is subjected to force at a certain angle with each plastic staple push piece, and is not subjected to axial force. Moreover, the plastic staple push piece moves upward to drive the staples into the tissues that have been aligned and need to be anastomosed. After passing through the tissue, the staples are blocked by the staple seats above and bend inward, forming a "B"-shaped mutually staggered arrangement, which encounters radial resistance when anastomosing the tissues together. Utility Model Content
[0004] The utility model aims to provide a guiding linear cutting stapler to solve the problem of large resistance when the firing push handle of the linear cutting stapler is pushed forward for cutting and anastomosis as mentioned in the background art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a guided linear cutting stapler, comprising a nail anvil, a nail anvil cover, a nail magazine and a movable handle cover, the nail anvil is arranged inside the nail anvil cover, the nail magazine is connected to the movable handle cover, a nail magazine seat is provided inside the nail magazine, nail pushing pieces are equidistantly provided inside the nail magazine, a stapler is fixed on the top of the nail pushing piece, a firing push piece connected to the nail magazine is provided inside the movable handle cover, a firing push handle connected to the firing push piece is provided on the surface of the movable handle cover, a guide piece is provided inside the nail magazine and relative to the bottom end of the nail pushing piece, a sliding groove is symmetrically provided on the inner wall of the nail magazine, a sliding pin with two ends slidably connected to the sliding groove is provided inside the nail magazine, and one end of the guide piece is wound and connected to the sliding pin.
[0006] Preferably, limiting protrusions are symmetrically fixed to the top of the inner wall of the sliding groove.
[0007] Preferably, a groove is provided at the highest point of the top of the firing push piece, a hollow roller is provided inside the groove, and a shaft is connected between the roller and the groove.
[0008] Preferably, the guide piece is a component made of elastic material.
[0009] Preferably, rubber pads are symmetrically fixed on both sides of the anvil cover and the movable handle cover.
[0010] Preferably, anti-skid particles are fixed at equal distances on the surface of the rubber pad.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model adds a metal guide piece between the metal firing push piece and the plastic nail pushing piece through structural adjustment, thereby changing the contact and force receiving mode of the metal firing push piece and the plastic nail withdrawing piece, reducing resistance, making it more labor-saving during surgical operations, and making it easier for doctors to operate during operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a structural breakdown diagram of the stapler of the utility model;
[0014] Figure 2 This is a schematic diagram of the guide plate structure of the utility model;
[0015] Figure 3 This is a driving diagram of the guide block structure of the utility model;
[0016] Figure 4 For the utility model Figure 1 A magnified schematic diagram of point A;
[0017] Figure 5 For the utility model Figure 1 A magnified schematic diagram of point A;
[0018] Figure 6 This is a schematic diagram of the rubber pad structure of the utility model;
[0019] In the figure: 1, cover cap; 2, nail anvil; 3, nail anvil cover; 4, nail magazine; 5, nail pusher; 6, nail magazine seat; 7, cutting knife; 8, firing pusher; 9, movable handle; 10, movable handle cover; 11, firing pusher handle; 12, staple; 13, guide plate; 14, sliding groove; 15, sliding pin; 16, limiting protrusion; 17, groove; 18, roller; 19, shaft; 20, rubber pad; 21, anti-skid particles. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figures 1 to 6 The utility model provides a technical solution: a guided linear cutting stapler, comprising a nail anvil 2, a nail anvil cover 3, a nail magazine 4 and a movable handle cover 10, the nail anvil 2 is arranged inside the nail anvil cover 3, the nail magazine 4 is connected to the movable handle cover 10, a nail magazine seat 6 is provided inside the nail magazine 4, nail pushing pieces 5 are arranged at equal distances inside the nail magazine 4, and a stapler 12 is fixed on the top of the nail pushing piece 5, a firing push piece 8 connected to the nail magazine 4 is provided inside the movable handle cover 10, a firing push handle 11 connected to the firing push piece 8 is provided on the surface of the movable handle cover 10, a guide piece 13 is provided inside the nail magazine 4 and relative to the bottom end of the nail pushing piece 5, a sliding groove 14 is symmetrically provided on the inner wall of the nail magazine 4, a sliding pin 15 with two ends slidably connected to the sliding groove 14 is provided inside the nail magazine 4, and one end of the guide piece 13 is wound and connected with the sliding pin 15.
[0022] In this embodiment, preferably, a limiting protrusion 16 is symmetrically fixed to the top of the inner wall of the sliding groove 14, so that the sliding pin 15 presses the limiting protrusion 16 to be clamped into the top of the sliding groove 14 for limiting.
[0023] In this embodiment, preferably, a groove 17 is provided at the highest point of the top of the firing push piece 8, a hollow roller 18 is provided inside the groove 17, and an axle rod 19 is connected between the roller 18 and the groove 17, so that the roller 18 and the bottom surface of the guide piece 13 are rolled and fitted by pushing the firing push piece 8.
[0024] In this embodiment, preferably, the guide piece 13 is made of elastic material, so that the firing push piece 8 can push the guide piece 13 to deform.
[0025] In this embodiment, preferably, rubber pads 20 are symmetrically fixed on both sides of the anvil cover 3 and the movable handle cover 10 .
[0026] In this embodiment, preferably, anti-skid particles 21 are fixed at equal distances on the surface of the rubber pad 20 , and the rubber pad 20 and the anti-skid particles 21 can play a role in gripping and preventing skidding, so as to facilitate stable operation of the stapler.
[0027] The working principle and use process of the utility model are as follows: when the utility model needs to use a guided linear cutting stapler, when the staple cartridge assembly is assembled in place for cutting and staple, the firing push handle 11 is pushed forward to drive the firing push piece 8 to move forward, and when the front end inclined surface of the firing push piece 8 contacts the guide piece 13, the guide piece 13 is pushed to drive the sliding pin 15 to slide upward inside the sliding groove 14, and the sliding pin 15 squeezes the limiting protrusion 16 to be stuck into the top of the sliding groove 14, and the guide piece 13 is limited by the limiting protrusion 16, and then the roller 18 at the top of the firing push piece 8 is rolled and fitted with the bottom surface of the guide piece 13, and the roller 18 is allowed to roll inside the groove 17 through the shaft 19, and the guide piece 13 can be pushed smoothly. The stapler 12 is moved upward inside the stapler magazine 4 and pushed by the stapler pushing piece 5, so that the stapler pushing piece 5 drives the staplers 12 inside the stapler magazine 4 to move out from the inside of the stapler magazine 4, and drives the stapler pushing piece 5 on the plane to move upward to drive the staplers 12 into the tissue for anastomosis. The stapler pushing piece 5 is pushed after the triggering push piece 8 contacts the plane of the guide piece 13, thereby increasing the force area and avoiding the triggering push piece 8 directly pushing each stapler pushing piece 5 to be subjected to local force and cause large resistance. The operation is easier to operate during the operation, and when the doctor wears rubber disposable gloves to hold and operate the stapler, the rubber pad 20 and the anti-slip particles 21 can play a role in holding and preventing slipping, so as to operate the stapler stably.
[0028] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A guided linear cutting stapler, comprising a nail support (2), a nail support cover (3), a nail magazine (4) and a movable handle cover (10), wherein the nail support (2) is arranged inside the nail support cover (3), the nail magazine (4) is connected to the movable handle cover (10), a nail magazine seat (6) is provided inside the nail magazine (4), nail pushing pieces (5) are arranged at equal distances inside the nail magazine (4), and a staple (12) is fixed at the top end of the nail pushing piece (5), a firing push piece (8) connected to the nail magazine (4) is arranged inside the movable handle cover (10), and a firing push handle (11) connected to the firing push piece (8) is arranged on the surface of the movable handle cover (10), characterized in that: A guide piece (13) is arranged inside the nail magazine (4) and is opposite to the bottom end of the nail pushing piece (5). A sliding groove (14) is symmetrically provided on the inner wall of the nail magazine (4). A sliding pin (15) is arranged inside the nail magazine (4) and its two ends are slidably connected to the sliding groove (14). One end of the guide piece (13) is wound and connected to the sliding pin (15).
2. The guided linear cutting stapler according to claim 1, characterized in that: A limiting protrusion (16) is symmetrically fixed on the top end of the inner wall of the sliding groove (14).
3. The guided linear cutting stapler according to claim 2, characterized in that: A groove (17) is provided at the highest point of the top of the firing push piece (8), a hollow roller (18) is provided inside the groove (17), and a shaft (19) is connected between the roller (18) and the groove (17).
4. The guided linear cutting stapler according to claim 1, characterized in that: The guide piece (13) is a component made of elastic material.
5. The guided linear cutting stapler according to claim 1, characterized in that: Rubber pads (20) are symmetrically fixed on both sides of the anvil seat cover (3) and the movable handle cover (10).
6. The guided linear cutting stapler according to claim 5, characterized in that: Anti-skid particles (21) are fixed at equal distances on the surface of the rubber pad (20).