An automatic assembly device for an anastomat cannula

CN224407429UActive Publication Date: 2026-06-26CHANGZHOU ANZHAN PRECISION INSTR TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU ANZHAN PRECISION INSTR TECH CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-26

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Abstract

The utility model discloses an automatic assembly device of anastomat sleeve, including processing platform, the both sides symmetry of processing platform top is equipped with moving frame, two moving frame top all are equipped with limit component, the utility model has the beneficial effect that through the cooperation of external spring type telescopic link in limit component and rubber resistance block, can provide stable clamping force, can also adapt to different specifications sleeve, combines telescopic guide rod, slide bar etc.
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Description

Technical Field

[0001] This utility model relates to the field of anastomosis device sleeve processing technology, and in particular to an automatic assembly device for anastomosis device sleeves. Background Technology

[0002] Anastomosis device cannula assembly is a critical step in the manufacturing process, referring to the precise installation of the cannula component onto the main structure of the anastomosis device according to specific technological requirements. This operation must ensure the positional accuracy of the cannula with components such as the stapler cartridge and push rod to guarantee that the anastomosis device can successfully perform tissue cutting and suturing actions during clinical use. Traditional assembly relies on manual positioning and pressing, which suffers from low efficiency and poor consistency.

[0003] The existing patent publication number CN206745424U discloses a surgical firing window device for a disposable circumcision stapler. Used in conjunction with the disposable circumcision stapler, it is suitable as a surgical instrument for circumcision and anastomosis of phimosis or paraphimosis in men. During surgery, it accurately indicates the firing position to ensure surgical success. It includes a sleeve, a push block, a return spring, a glans cover, and an adjusting screw. The sleeve has a viewing window with graduation lines on both sides. An elastic buckle is located at the front end of the sleeve, connecting to a buckle hole at the rear of the staple cartridge sleeve during assembly. A short tube is located at the rear of the glans cover, with internal threads at the rear end and an indicator line at the lower part. The push block has a safety block groove and a mounting hole for the staple pusher. The return spring is mounted on the staple pusher positioning sleeve, which is positioned by inserting the staple cartridge sleeve into the mounting hole of the push block.

[0004] In the current assembly process of stapler cannulas, workers must manually perform operations such as component positioning, alignment, and pressing. This not only consumes a lot of manpower and time, resulting in low assembly efficiency, but also suffers from problems such as cannulas misalignment and uneven pressing force due to manual operation, making it difficult to guarantee assembly accuracy. This traditional manual assembly mode not only increases production costs, but also affects the overall performance of the stapler due to poor consistency. Especially in large-scale production, the contradiction between efficiency and quality becomes more prominent, urgently requiring optimization and improvement through automated assembly technology. To this end, we propose an automated stapler cannulas assembly device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide an automatic assembly device for anastomotic device sheaths, which can solve the problem that in the existing anastomotic device sheath assembly process, workers need to manually complete operations such as component positioning, alignment, and pressing. This not only consumes a lot of manpower and time, resulting in low assembly efficiency, but also suffers from problems such as sheath misalignment and uneven pressing force due to manual operation, making it difficult to guarantee assembly accuracy. This traditional manual assembly mode not only increases production costs, but also affects the overall performance of the anastomotic device due to poor consistency. Especially in large-scale production, the contradiction between efficiency and quality is more prominent, and there is an urgent need for automated assembly technology to optimize and improve the process.

[0007] To solve the above-mentioned technical problems, this utility model provides an automatic assembly device for anastomosis device sleeve, which adopts the following technical solution: it includes a processing table, and movable frames are symmetrically arranged on both sides of the top of the processing table, with limiting components provided directly above the two movable frames;

[0008] The limiting assembly includes a lifting frame located directly above the movable frame. The lifting frame has a first movable groove inside. A first bidirectional lead screw is rotatably mounted between the inner walls of the front and rear sides of the first movable groove. Two first bidirectional lead screws are threaded to their front and rear ends, and two first sliders are fixedly mounted on their tops. A limiting frame is fixedly mounted inside each of the two limiting frames. A plurality of external spring-loaded telescopic rods are fixedly mounted inside each of the limiting frames, and a rubber stop is fixedly mounted at the end of each external spring-loaded telescopic rod away from the limiting frame. A stop plate is also fixedly mounted on one side of the top of the lifting frame, and the stop plate is located on the symmetrical center line of the two limiting frames.

[0009] Preferably, each of the two movable frames has a second movable groove inside, and a second bidirectional lead screw is rotatably arranged between the inner walls of the front and rear sides of the two second movable grooves. The front and rear ends of the two second bidirectional lead screws are threaded with second sliders. Connecting blocks are symmetrically fixed at the bottom of the lifting frame, and connecting rods are movably hinged between the connecting blocks and the adjacent second sliders.

[0010] Preferably, four telescopic guide rods are fixedly installed between the bottom of the lifting frame and the top of the adjacent movable frame, and a first motor is fixedly installed on the front side of the lifting frame. The output end of the first motor is fixedly connected to the front end of the first bidirectional lead screw through the lifting frame.

[0011] Preferably, a second motor is fixedly installed on the front side of each of the two movable frames, and the output ends of the two second motors are respectively fixedly connected to the front end of the corresponding second bidirectional lead screw through the movable frame.

[0012] Preferably, two third movable slots are symmetrically opened on both sides of the inside of the processing table. A screw is rotatably arranged between the inner walls of the two third movable slots, and a third slider is threadedly connected to the outside of the two screws. The two movable frames are respectively fixedly arranged on the top of the corresponding third sliders. A third motor is fixedly arranged on both sides of the processing table, and the output end of the two third motors is fixedly connected to one end of the corresponding screw through the processing table.

[0013] Preferably, four fourth movable slots are symmetrically opened on both sides of the inside of the processing table. Each pair of fourth movable slots is located on the front and rear sides of the corresponding third movable slot. Each fourth movable slot has a slide rod fixedly installed on the inner wall of both sides. Each slide rod has a fourth slider slidably installed on the outside. The two movable frames are also fixedly installed on the top of the corresponding two fourth sliders.

[0014] In summary, this utility model has at least one of the following beneficial effects: 1. The external spring-type telescopic rod in the limiting component cooperates with the rubber block to provide stable clamping force and adapt to different specifications of sleeves. Combined with multiple guiding structures such as telescopic guide rod and sliding rod, it effectively avoids problems such as sleeve offset and uneven pressing force, and greatly ensures the assembly accuracy and the overall performance consistency of the stapler.

[0015] 2. The first and second bidirectional lead screws can adjust the spacing between the limit frames and the height of the lifting frame respectively, which can flexibly adapt to the assembly requirements of various specifications of stapler sleeves; at the same time, it reduces manual intervention, significantly reduces labor costs and product losses caused by assembly errors, and significantly reduces product production costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0018] Figure 2 This is a three-dimensional side view of the overall structure of this utility model;

[0019] Figure 3 This is another overall structural schematic diagram of the present utility model;

[0020] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure at point A in the middle;

[0021] Figure 5This is a side view of another overall structure of this utility model.

[0022] The components represented by each number in the attached diagram are listed below: 1. Processing table; 2. Moving frame; 3. Lifting frame; 4. First movable groove; 5. First double-acting lead screw; 6. First slider; 7. Limiting frame; 8. External spring-loaded telescopic rod; 9. Rubber stop block; 10. Stop plate; 11. Second movable groove; 12. Second double-acting lead screw; 13. Second slider; 14. Connecting block; 15. Connecting rod; 16. Telescopic guide rod; 17. First motor; 18. Second motor; 19. Third movable groove; 20. Screw; 21. Third slider; 22. Third motor; 23. Fourth movable groove; 24. Slide rod; 25. Fourth slider. Detailed Implementation

[0023] 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.

[0024] The following is in conjunction with the appendix Figures 1-5 This utility model will be described in further detail.

[0025] In this embodiment, to address the issue that in the existing anastomosis device assembly process, workers must manually perform operations such as component positioning, alignment, and pressing, which not only consumes a lot of manpower and time and has low assembly efficiency, but is also prone to problems such as cannula misalignment and uneven pressing force due to manual operation, making it difficult to guarantee assembly accuracy. This traditional manual assembly mode not only increases production costs, but also affects the overall performance of the anastomosis device due to poor consistency. Especially in large-scale production, the contradiction between efficiency and quality is more prominent, and there is an urgent need for automated assembly technology to optimize and improve the process. This utility model discloses an automatic assembly device for anastomosis devices.

[0026] It includes a processing table 1, with movable frames 2 symmetrically arranged on both sides of the top of the processing table 1, and a limiting component is provided directly above each of the two movable frames 2;

[0027] The limiting component includes a lifting frame 3, which is located directly above the movable frame 2. The lifting frame 3 has a first movable groove 4 inside. A first bidirectional lead screw 5 is rotatably arranged between the inner walls of the front and rear sides of the first movable groove 4. The front and rear ends of the two first bidirectional lead screws 5 are threadedly connected to the first sliders 6. The top of the two first sliders 6 is fixedly provided with a limiting frame 7. Several external spring-type telescopic rods 8 are fixedly arranged inside the two limiting frames 7. A rubber block 9 is fixedly arranged at the end of each external spring-type telescopic rod 8 away from the limiting frame 7. A stop plate 10 is also fixedly arranged on one side of the top of the lifting frame 3. The stop plate 10 is located on the symmetrical center line of the two limiting frames 7.

[0028] Specifically: the first bidirectional lead screw 5 is driven to rotate by the first motor 17. Because the threads at the front and rear ends of the first bidirectional lead screw 5 rotate in opposite directions, the two first sliders 6 move in opposite directions in the first movable groove 4, driving the limit frame 7 to move synchronously, thereby realizing the lateral clamping adjustment of different specifications of anastomosis device sleeves; the external spring-type telescopic rod 8, in conjunction with the rubber stop 9, can provide a stable clamping force when clamping the sleeve, and can also avoid damage to the sleeve surface through the elastic buffer of the spring.

[0029] The two movable frames 2 are each provided with a second movable groove 11. A second bidirectional screw 12 is rotatably provided between the inner walls of the front and rear sides of the two second movable grooves 11. The front and rear ends of the two second bidirectional screws 12 are threadedly connected to the second sliders 13. The bottom of the lifting frame 3 is symmetrically fixed with connecting blocks 14. A connecting rod 15 is movably hinged between the connecting block 14 and the adjacent second slider 13.

[0030] Specifically, the second bidirectional lead screw 12 rotates under the drive of the second motor 18, driving the second slider 13 to move within the second movable groove 11. Through the hinge structure between the connecting rod 15 and the connecting block 14, the linear motion of the second slider 13 is converted into the lifting motion of the lifting frame 3, which facilitates the adjustment of the height of the limiting component to adapt to different assembly processes.

[0031] Four telescopic guide rods 16 are fixedly installed between the bottom of the lifting frame 3 and the top of the adjacent movable frame 2. A first motor 17 is fixedly installed on the front side of the lifting frame 3. The output end of the first motor 17 is fixedly connected to the front end of the first bidirectional lead screw 5 through the lifting frame 3.

[0032] Specifically: four telescopic guide rods 16 provide guidance and support for the lifting movement of the lifting frame 3, preventing deviation during the lifting process and ensuring the stability of the movement of the limit component; the first motor 17 is installed on the front side of the lifting frame 3, and its output end passes through the lifting frame 3 and is fixedly connected to the first bidirectional lead screw 5, forming a compact transmission structure and reducing space occupation.

[0033] A second motor 18 is fixedly installed on the front side of each of the two movable frames 2, and the output ends of the two second motors 18 are respectively fixedly connected to the front end of the corresponding second bidirectional lead screw 12 through the movable frame 2.

[0034] The processing table 1 has two symmetrically arranged third movable slots 19 on both sides. Screws 20 are rotatably arranged between the inner walls of the two third movable slots 19, and third sliders 21 are threadedly connected to the outside of the two screws 20. Two movable frames 2 are respectively fixedly arranged on the top of the corresponding third sliders 21. Third motors 22 are fixedly arranged on both sides of the processing table 1. The output ends of the two third motors 22 are fixedly connected to one end of the corresponding screws 20 through the processing table 1.

[0035] Specifically, the third motor 22 drives the screw 20 to rotate, and the third slider 21 drives the screw 20 through a threaded transmission, which drives the moving frame 2 to move laterally on the top of the processing table 1, so as to realize the horizontal position adjustment of the limit component to adapt to the needs of different assembly stations; the two moving frames 2 are controlled by independent third motors 22 respectively, and the spacing can be flexibly adjusted.

[0036] The processing table 1 has four fourth movable slots 23 symmetrically opened on both sides inside. Each pair of fourth movable slots 23 is located on the front and rear sides of the corresponding third movable slot 19. Each fourth movable slot 23 has a slide rod 24 fixedly installed on the inner wall of both sides. Each slide rod 24 has a fourth slider 25 slidably installed on the outside. Two movable frames 2 are also fixedly installed on the top of the corresponding two fourth sliders 25.

[0037] Specifically, the slide bar 24 is fixed to the inner walls of both sides of the fourth movable groove 23, and the fourth slider 25 is sleeved on the slide bar 24 and can slide freely. It cooperates with the third slider 21 to provide dual guidance for the lateral movement of the moving frame 2, ensuring the stability and accuracy of the moving frame 2 during the lateral movement process.

[0038] The specific working principle is as follows: After the equipment is started, the third motor 22 drives the screw 20 to rotate, causing the moving frame 2 to move laterally to the designated loading station, where the anastomosis device sleeve to be assembled is placed between the two limiting frames 7. Subsequently, the first motor 17 drives the first bidirectional lead screw 5 to rotate, and the two limiting frames 7 move towards each other, precisely clamping and fixing the sleeve through the external spring-type telescopic rod 8 and the rubber stop 9. Next, the second motor 18 drives the second bidirectional lead screw 12, which, through the connecting rod 15, drives the lifting frame 3 to descend, aligning the sleeve with the assembly position of the anastomosis device body. At this time, the external pressing mechanism cooperates to complete the sleeve pressing assembly under the precise positioning of the limiting components. After assembly, each driving device reverses its rotation, the limiting components rise, release the sleeve, and move laterally to the initial position, waiting for the next assembly task, realizing an automated and high-precision assembly process for the anastomosis device sleeve.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0040] 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. An automatic assembly device for anastomotic device sleeve, comprising a processing table (1), characterized in that: The processing table (1) is symmetrically provided with movable frames (2) on both sides of the top, and a limiting component is provided directly above the two movable frames (2); The limiting component includes a lifting frame (3), which is located directly above the movable frame (2). The lifting frame (3) has a first movable groove (4) inside. A first bidirectional screw (5) is rotatably arranged between the inner walls of the front and rear sides of the first movable groove (4). The front and rear ends of the two first bidirectional screws (5) are threadedly connected to a first slider (6). The top of the two first sliders (6) is fixedly provided with a limiting frame (7). Several external spring-type telescopic rods (8) are fixedly arranged inside the two limiting frames (7). A rubber block (9) is fixedly arranged at the end of each external spring-type telescopic rod (8) away from the limiting frame (7). A stop plate (10) is also fixedly arranged on one side of the top of the lifting frame (3). The stop plate (10) is located on the symmetrical center line of the two limiting frames (7).

2. The automatic assembly device for anastomotic device sleeve according to claim 1, characterized in that: The two movable frames (2) are each provided with a second movable groove (11). A second bidirectional screw (12) is rotatably provided between the inner walls of the front and rear sides of the two second movable grooves (11). The front and rear ends of the two second bidirectional screws (12) are threadedly connected to a second slider (13). A connecting block (14) is symmetrically fixed at the bottom of the lifting frame (3). A connecting rod (15) is movably hinged between the connecting block (14) and the adjacent second slider (13).

3. The automatic assembly device for anastomotic device sleeve according to claim 1, characterized in that: Four telescopic guide rods (16) are fixedly installed between the bottom of the lifting frame (3) and the top of the adjacent moving frame (2). A first motor (17) is fixedly installed on the front side of the lifting frame (3). The output end of the first motor (17) is fixedly connected to the front end of the first bidirectional screw (5) through the lifting frame (3).

4. The automatic assembly device for anastomotic device sleeve according to claim 1, characterized in that: A second motor (18) is fixedly installed on the front side of each of the two movable frames (2), and the output ends of the two second motors (18) are respectively fixedly connected to the front end of the corresponding second bidirectional lead screw (12) through the movable frame (2).

5. The automatic assembly device for anastomotic device sleeve according to claim 1, characterized in that: The processing table (1) has two symmetrically arranged third movable slots (19) on both sides. A screw (20) is rotatably arranged between the inner walls of the two third movable slots (19). The two screws (20) are threadedly connected to the outside of the third slider (21). The two moving frames (2) are respectively fixedly arranged on the top of the corresponding third slider (21). A third motor (22) is fixedly arranged on both sides of the processing table (1). The output ends of the two third motors (22) are fixedly connected to one end of the corresponding screw (20) through the processing table (1).

6. The automatic assembly device for anastomotic device sleeve according to claim 1, characterized in that: The processing table (1) has four fourth movable slots (23) symmetrically opened on both sides inside. Each pair of fourth movable slots (23) is located on the front and rear sides of the corresponding third movable slot (19). Each fourth movable slot (23) has a slide rod (24) fixedly installed on the inner wall of both sides. Each slide rod (24) has a fourth slider (25) slidably installed on the outside. The two moving frames (2) are also fixedly installed on the top of the corresponding two fourth sliders (25).