Anastomat auxiliary tool
By designing the base, positioning components, and guiding components of the stapler auxiliary tooling, the problem of the stapler easily shifting during operation was solved, improving stability and guiding accuracy, and increasing operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU ZERO POINT PRECISION MOULD CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
Smart Images

Figure CN224295668U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically, it relates to an auxiliary tooling for an anastomosis device. Background Technology
[0002] Anastomosing devices are crucial instruments used for tissue cutting and suturing in surgical procedures, and their operational precision directly affects the surgical outcome. In traditional procedures, the anastomosing device needs to be manually fixed and the pusher blade moved to complete the cutting and suturing.
[0003] However, during use, the lack of effective fixation of the stapler body makes it prone to displacement during operation, which can lead to suture misalignment, frequent disassembly for staple cartridge replacement, cumbersome operation and easy loss of parts, and lack of auxiliary guidance for the pusher blade's travel path, which can easily deviate from the preset direction. These problems result in insufficient stability, low efficiency and poor guiding accuracy of the stapler. Utility Model Content
[0004] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide an auxiliary tooling for a stapler, including a base, a positioning component, a clamping mechanism, and a guiding component; the top surface of the base is provided with a positioning groove adapted to the contour of the stapler body; the positioning component consists of two sets of elastic clamping arms symmetrically distributed on both sides of the length direction of the positioning groove; the guiding component is located on the operating end side of the base and includes a guide post and a matching slider arranged perpendicular to the plane of the base; the bottom surface of the base is provided with a slide rail with a limiting block, and a movable tray is mounted on the slide rail.
[0005] As a preferred embodiment, the elastic clamping arm includes a fixed section hinged to the base and a free section extending inward. The end of the free section is provided with an anti-slip protrusion. The fixed section and the free section are connected by a hinge shaft and a coil spring.
[0006] As a preferred embodiment, the axis of the guide post is parallel to the traveling direction of the stapler pusher blade, and its surface is provided with a guide groove. The slider forms a sliding fit with the guide groove through a dovetail groove structure.
[0007] As a preferred embodiment, the movable tray includes a base plate slidably connected to a slide rail and a partition plate disposed perpendicular to the base plate, the partition plate dividing the base plate into multiple staple compartment storage positions.
[0008] As a preferred embodiment, the inner surface of the positioning groove is provided with an anti-disengagement structure, which consists of rubber hemispherical protrusions spaced apart along the edge of the groove.
[0009] As a preferred embodiment, the base is provided with a tool rack on its side, which consists of a support arm connected to the side wall of the base and a U-shaped bayonet at the end.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] This invention, through components such as positioning grooves and elastic clamping arms, can improve operational stability, increase assembly efficiency, and enhance guiding accuracy, thereby solving the problems of insufficient stability, low efficiency, and poor guiding accuracy. Attached Figure Description
[0012] Figure 1 This is a top view of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the left-side structure of this utility model. Detailed Implementation
[0014] The present invention will be further described below with reference to specific embodiments.
[0015] An auxiliary tooling for a stapler includes a base 1, a positioning component 2, a clamping mechanism 3, and a guiding component 4; the top surface of the base 1 is provided with a positioning groove 11 adapted to the contour of the stapler body;
[0016] As a preferred embodiment, the inner surface of the positioning groove 11 is provided with an anti-disengagement structure 12, which consists of rubber hemispherical protrusions spaced apart along the edge of the groove.
[0017] The anti-disengagement structure 12 on the inner surface of the positioning groove 11 is composed of rubber hemispherical protrusions spaced 5mm apart. It is integrally formed by molding process, which can increase the friction of the stapler. The anti-disengagement structure 12 prevents the stapler from sliding during operation. The shape of the groove 11 adapts to the curved surface of the main body of the machine.
[0018] The positioning component 2 consists of two sets of elastic clamping arms 21 symmetrically distributed on both sides of the positioning groove 11 along its length.
[0019] As a preferred embodiment, the elastic clamping arm 21 includes a fixed section 211 hinged to the base 1 and a free section 212 extending inward. The end of the free section 212 is provided with an anti-slip protrusion 213. The fixed section 211 and the free section 212 are connected by a hinge shaft and a coil spring.
[0020] The fixed section 211 is hinged to both sides of the base 1 by a pin, the free section 212 extends inward, and the anti-slip protrusion 213 at the end is made of silicone. The hinge structure allows for adaptive clamping of instruments of different sizes, and the anti-slip protrusion 213 can prevent scratching the surface.
[0021] The guide assembly 4 is located on the operating end side of the base 1, and includes a guide post 41 and a matching slider 42 that are perpendicular to the plane of the base 1;
[0022] As a preferred embodiment, the axis of the guide post 41 is parallel to the traveling direction of the pusher blade of the anastomosis device, and its surface is provided with a guide groove 411. The slider 42 forms a sliding fit with the guide groove 411 through a dovetail groove structure. The dovetail groove fit eliminates lateral offset and ensures the linear motion accuracy of the pusher blade.
[0023] The bottom surface of the base 1 is provided with a slide rail 51 with a limit block 52, and a movable tray 5 is mounted on the slide rail 51;
[0024] As a preferred embodiment, the movable tray 5 includes a base plate 53 slidably connected to the slide rail 51 and a partition 54 disposed perpendicular to the base plate 53, the partition 54 dividing the base plate into multiple staple storage positions.
[0025] The limiting block 52 of the slide rail 51 can limit the sliding range of the movable tray 5, the partition 54 realizes the classification and management of the staple cartridge, and the slide rail 51 is designed to facilitate quick access during surgery.
[0026] As a preferred embodiment, a tool holder 6 is provided on the side of the base 1. The holder 6 consists of a support arm 61 connected to the side wall of the base 1 and a U-shaped bayonet 62 at the end. Preferably, the support arm 61 is 150mm long, and a magnetic sheet can be embedded in the U-shaped bayonet 62 for fixing metal tools.
[0027] It should be noted that the guide post 41 being set perpendicular to the base 1 is only a preferred embodiment. The guide post 41 can also be set on the base 1 by rotating and fixing components, thereby changing the direction of the guide post 41 to change the direction of the pusher blade, which can better adapt to different working scenarios.
[0028] The overall workflow is as follows:
[0029] 1. Fixing the stapler: Place the instrument body into the positioning groove 11, and the elastic clamping arm 21 will automatically clamp it. At this time, the distal end of the stapler is parallel to the guide post 41 and cooperates with the slider 42 under the influence of the stapler's own steering component (such as worm gear or bevel gear set).
[0030] 2. Install the staple cartridge: Pull out the movable tray 5 to select the staple cartridge and insert it into the distal end of the stapler;
[0031] 3. Guided cutting: The pusher blade is inserted into the slider 42 and pushed along the guide post 41 to complete the operation;
[0032] 4. Tool Retrieval: Take the tweezers and adjust the instrument from the U-shaped slot 62 of the tool holder 6;
[0033] 5. Reset and clean: Press the clamping arm 21 to release the instrument, reset the slider 42 and the movable tray 5.
[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art, and their specifications and models can be selected according to actual conditions.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An auxiliary tooling for a stapler, characterized in that, The device includes a base (1), a positioning component (2), a clamping mechanism (3), and a guide component (4). The top surface of the base (1) is provided with a positioning groove (11) that adapts to the contour of the main body of the stapler. The positioning component (2) consists of two sets of elastic clamping arms (21) symmetrically distributed on both sides of the length direction of the positioning groove (11). The guide component (4) is located on the operating end side of the base (1) and includes a guide post (41) perpendicular to the plane of the base (1) and a matching slider (42). The bottom surface of the base (1) is provided with a slide rail (51) with a limit block (52), and a movable tray (5) is mounted on the slide rail (51).
2. The auxiliary tooling for a stapler according to claim 1, characterized in that, The elastic clamping arm (21) includes a fixed section (211) hinged to the base (1) and a free section (212) extending inward. The end of the free section (212) is provided with an anti-slip protrusion (213). The fixed section (211) and the free section (212) are connected by a hinge shaft and a spring.
3. The auxiliary tooling for a stapler according to claim 1, characterized in that, The axis of the guide post (41) is parallel to the direction of travel of the anastomosis device pusher blade, and its surface is provided with a guide groove (411). The slider (42) forms a sliding fit with the guide groove (411) through the dovetail groove structure.
4. The auxiliary tooling for a stapler according to claim 1, characterized in that, The movable tray (5) includes a base plate (53) slidably connected to a slide rail (51) and a partition (54) perpendicular to the base plate, the partition (54) dividing the base plate into multiple staple storage positions.
5. The auxiliary tooling for a stapler according to claim 1, characterized in that, The inner surface of the positioning groove (11) is provided with an anti-disengagement structure (12), which consists of rubber hemispherical protrusions spaced along the edge of the groove.
6. The auxiliary tooling for a stapler according to claim 1, characterized in that, The base (1) has a tool rack (6) on its side. The rack (6) consists of a support arm (61) connected to the side wall of the base (1) and a U-shaped bayonet (62) at the end.