Electric anastomat for endoscope

Abstract

The electric anastomat for the endoscope comprises an installation cylinder and a driving piece, the installation cylinder is fixedly connected with the driving piece, the output end of the driving piece is fixedly connected with a transmission rod, and the outer surface wall of the transmission rod is connected with a pushing cylinder in a screwed mode, and the pushing cylinder is connected with the inner surface wall of the installation cylinder in a sliding mode. In the application, the positioning rod is rotated to enable the open end of the positioning rod to abut against the outer surface wall of the moving cylinder, so that the fixing of the moving cylinder and the mounting cylinder is realized through friction force, subsequently, the driving piece drives the transmission rod to rotate, the transmission rod drives the pushing cylinder to translate, the pushing cylinder is in contact with the transmission block, and the transmission block drives the rack to move and stretches the spring; the rack is meshed with the tooth column to drive the tooth column and the movable anastomosis plate to deflect until the movable anastomosis plate and the fixed anastomosis plate complete anastomosis operation, and therefore the overall length of the electric anastomat can be adjusted, and meanwhile the orientation of the movable anastomosis plate and the orientation of the fixed anastomosis plate can be conveniently adjusted according to requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of staplers, in particular to an electric stapler for laparoscopy. Background Art

[0002] Staplers are widely used in actual clinical medicine. Staplers can be used in combination with laparoscopes. A stapler is a device used in medicine to replace manual suturing. It uses titanium staples to sever or anastomose tissues. The main working principle is to use titanium staples to sever or anastomose tissues, similar to a stapler. Staplers also have a wide range of applications in gynecological diagnosis and treatment work and can anastomose tissues more quickly and conveniently.

[0003] Chinese Patent Publication No. CN219183916, published on June 16, 2023, discloses an electric stapler, which includes an electric drive part; a telescopic installation part is slidably connected to the electric drive part; a stapling drive part is rotatably connected to the telescopic installation part; a telescopic transmission member is installed inside the telescopic installation part; a meshing opening and closing part is slidably connected to the telescopic installation part; the electric drive part includes: an electric installation cylinder, a drive motor, a drive shaft and a positioning shaft. A drive motor is fixedly connected to the electric installation cylinder; a drive shaft is fixedly connected to the output shaft of the drive motor, and the drive shaft is a hexagonal column structure; a positioning shaft is slidably connected to the electric installation cylinder; a propulsion drive screw rod is threadedly connected to the meshing drive cylinder.

[0004] For example, the above-mentioned existing electric stapler for laparoscopy can effectively avoid affecting and puncturing abdominal tissues by flexibly and precisely controlling the opening and closing angle, and avoid the opening of the stapling drive part and the main body of the staple cartridge assembly from being too large. At the same time, by adopting the provided telescopic installation part, rapid telescoping can be achieved. In the specific implementation process, due to the holding habits of the operator, after holding the column installation cylinder, the orientations of the movable stapling plate and the fixed stapling plate are relatively fixed and cannot be adjusted according to specific stapling requirements. Therefore, it is urgent to propose a corresponding electric stapler for laparoscopy to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an electric stapler for laparoscopy to solve the above problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An electric stapler for endoscope, comprising an installation cylinder and a driving member, the installation cylinder is fixedly connected to the driving member, a transmission rod is fixedly connected to the output end of the driving member, a pushing cylinder which is in threaded connection with the outer wall of the transmission rod and is slidably connected to the inner wall of the installation cylinder is provided, a moving cylinder is slidably connected to the inner wall of the installation cylinder, a tooth column is rotatably connected to the inside of the moving cylinder, a movable anastomosis plate and a fixed anastomosis plate are respectively fixedly connected to the tooth column and the outer wall of the moving cylinder, a transmission assembly for linking the pushing cylinder and the tooth column is arranged inside the moving cylinder, and a positioning assembly for positioning the moving cylinder is arranged on the inner wall of the installation cylinder.

[0008] Preferably, a slider is fixedly connected to the outer wall of the pushing cylinder, and the slider is slidably connected to the inner wall of the installation cylinder through a chute.

[0009] Preferably, a rotating ring is rotatably connected to the outer wall of the moving cylinder, and a convex block which is slidably matched with the chute is fixedly connected to the outer wall of the rotating ring.

[0010] Preferably, the transmission assembly includes a transmission block located in the middle of the moving cylinder, a rack which is fixedly connected to the outer wall of the transmission block and is meshed with the tooth column is provided, and a spring is fixedly connected between the side of the transmission block far away from the rack and the inner wall of the moving cylinder.

[0011] Preferably, the positioning assembly includes a positioning rod, the outer wall of the positioning rod is in threaded connection with the inner wall of the installation cylinder, and the open end of the positioning rod abuts against the outer wall of the moving cylinder.

[0012] Preferably, an outer block is fixedly connected to the outer wall of the installation cylinder, the top of the outer block is set to be flat, and the outer wall of the positioning rod is in threaded connection with the inner wall of the outer block.

[0013] Preferably, a rubber sleeve is wrapped around the open end of the positioning rod.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0015] 1. In this application, after pulling the moving cylinder to make the overall length of the moving cylinder and the installation cylinder reach the requirement, the moving cylinder can be rotated, and the orientations of the movable anastomosis plate and the fixed anastomosis plate can be adjusted to the specified positions. Then, the positioning rod is rotated so that its open end abuts against the outer wall of the moving cylinder, thereby fixing the moving cylinder and the installation cylinder through friction. Subsequently, the driving member drives the transmission rod to rotate, the transmission rod drives the pushing cylinder to translate, the pushing cylinder contacts the transmission block, the transmission block drives the rack to move and stretch the spring, and the rack drives the tooth column and the movable anastomosis plate to deflect through the meshing with the tooth column until the movable anastomosis plate and the fixed anastomosis plate complete the anastomosis operation. Therefore, while the overall length of the electric stapler can be adjusted, the orientations of the movable anastomosis plate and the fixed anastomosis plate can also be conveniently adjusted according to requirements.

[0016] 2. In this application, the sliding fit between the slider on the outer wall of the pushing cylinder and the sliding groove can limit the axial deflection of the pushing cylinder, while the sliding fit between the convex block on the outer wall of the rotating ring and the sliding groove can prevent the movable cylinder from completely disengaging from the mounting cylinder without affecting the translation and rotation of the moving cylinder, thereby ensuring the use effect of the electric stapler for endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 shows a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0018] Figure 2 shows a schematic diagram of the structure of the pushing cylinder provided by an embodiment of the present invention;

[0019] Figure 3 shows a schematic diagram of the structure of the slider provided by an embodiment of the present invention;

[0020] Figure 4 shows a schematic diagram of the structure of the rotating ring provided by an embodiment of the present invention.

[0021] Legend:

[0022] 1. Mounting cylinder; 2. Driving member; 3. Positioning rod; 4. Movable stapling plate; 5. Fixed stapling plate; 6. Moving cylinder; 7. Tooth column; 8. Rack; 9. Transmission block; 10. Spring; 11. Pushing cylinder; 12. Transmission rod; 13. Slider; 14. Sliding groove; 15. Outer block; 16. Rotating ring; 17. Convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0025] An electric stapler for endoscopy, comprising an installation cylinder 1 and a driving member 2. The installation cylinder 1 is fixedly connected to the driving member 2. A transmission rod 12 is fixedly connected to the output end of the driving member 2. A push cylinder 11 that is screwed onto the outer wall of the transmission rod 12 and slidably connected to the inner wall of the installation cylinder 1 is provided. A moving cylinder 6 is slidably connected to the inner wall of the installation cylinder 1. A toothed column 7 is rotatably connected inside the moving cylinder 6. An active stapling plate 4 and a fixed stapling plate 5 are respectively fixedly connected to the toothed column 7 and the outer wall of the moving cylinder 6. A transmission assembly for linking the push cylinder 11 and the toothed column 7 is arranged inside the moving cylinder 6, and a positioning assembly for positioning the moving cylinder 6 is arranged on the inner wall of the installation cylinder 1;

[0026] Pull the moving cylinder 6. After the overall length of the moving cylinder 6 and the installation cylinder 1 reaches the requirement, the moving cylinder 6 can be rotated, and the orientations of the active stapling plate 4 and the fixed stapling plate 5 can be adjusted to the specified positions. Then rotate the positioning rod 3 so that its open end abuts against the outer wall of the moving cylinder 6, thereby fixing the moving cylinder 6 and the installation cylinder 1 through friction. Subsequently, drive the transmission rod 12 to rotate through the driving member 2. The transmission rod 12 drives the push cylinder 11 to translate. The push cylinder 11 contacts the transmission block 9. The transmission block 9 drives the rack 8 to move and stretch the spring 10. The rack 8 drives the toothed column 7 and the active stapling plate 4 to deflect through meshing with the toothed column 7 until the active stapling plate 4 and the fixed stapling plate 5 complete the stapling operation. Thus, while the overall length of the electric stapler can be adjusted, the orientations of the active stapling plate 4 and the fixed stapling plate 5 can also be conveniently adjusted according to requirements.

[0027] Specifically, as Figure 2 shown in Figure 4 Fig. [specific figure number], a slider 13 is fixedly connected to the outer wall of the push cylinder 11. The slider 13 is slidably connected to the inner wall of the installation cylinder 1 through a chute 14. A rotating ring 16 is rotatably connected to the outer wall of the moving cylinder 6. A convex block 17 that is slidably matched with the chute 14 is fixedly connected to the outer wall of the rotating ring 16. The sliding fit between the slider 13 on the outer wall of the push cylinder 11 and the chute 14 can limit the axial deflection of the push cylinder 11, and the sliding fit between the convex block 17 on the outer wall of the rotating ring 16 and the chute 14 can prevent the moving cylinder 6 from completely detaching from the installation cylinder 1 without affecting the translation and rotation of the moving cylinder 6, thereby ensuring the use effect of the electric stapler for endoscopy.

[0028] Specifically, as Figure 2 shown in Figure 3 Fig. [specific figure number], the transmission assembly includes a transmission block 9 located in the middle of the moving cylinder 6. A rack 8 that is meshed with the toothed column 7 is fixedly connected to the outer wall of the transmission block 9. And a spring 10 is fixedly connected between the side of the transmission block 9 away from the rack 8 and the inner wall of the moving cylinder 6. The push cylinder 11 contacts the transmission block 9. The transmission block 9 drives the rack 8 to move and stretch the spring 10. The rack 8 drives the toothed column 7 and the active stapling plate 4 to deflect through meshing with the toothed column 7.

[0029] Specifically, Figure 1 and Figure 2 As shown, the positioning assembly includes a positioning rod 3, the outer wall of the positioning rod 3 is screwed together with the inner wall of the mounting cylinder 1, and the open end of the positioning rod 3 abuts against the outer wall of the moving cylinder 6. The positioning rod 3 is rotated so that its open end abuts against the outer wall of the moving cylinder 6, thereby achieving the fixation of the moving cylinder 6 and the mounting cylinder 1 through friction. The outer wall of the mounting cylinder 1 is fixedly connected with an outer block 15, the top of the outer block 15 is set to be a plane, and the outer wall of the positioning rod 3 is screwed together with the inner wall of the outer block 15, thereby ensuring sufficient contact surface of the head of the positioning rod 3, and the open end of the positioning rod 3 is wrapped with a rubber sleeve to ensure the stability of the contact between the positioning rod 3 and the outer wall of the moving cylinder 6.

[0030] Working principle: After pulling the moving cylinder 6 so that the overall length of the moving cylinder 6 and the installation cylinder 1 reaches the required length, the moving cylinder 6 can be rotated, and the directions of the movable mating plate 4 and the fixed mating plate 5 can be adjusted to the specified positions. Then, the positioning rod 3 is rotated so that its open end abuts against the outer wall of the moving cylinder 6, so that the fixing of the moving cylinder 6 and the installation cylinder 1 is achieved through friction. Subsequently, the driving member 2 drives the transmission rod 12 to rotate, and the transmission rod 12 drives the push cylinder 11 to translate, and the push cylinder 11 contacts the transmission block 9, and the transmission block 9 drives the rack 8 to move and stretch the spring 10, and the rack 8 drives the gear by meshing with the gear column 7. The column 7 is deflected with the movable stapler plate 4 until the movable stapler plate 4 and the fixed stapler plate 5 complete the stapler operation, so that the overall length of the electric stapler can be adjusted, and the orientation of the movable stapler plate 4 and the fixed stapler plate 5 can also be conveniently adjusted according to needs. The sliding cooperation between the slider 13 on the outer wall of the push tube 11 and the slide groove 14 can limit the axial deflection of the push tube 11, and the sliding cooperation between the protrusion 17 on the outer wall of the rotating ring 16 and the slide groove 14 can prevent the movable tube 6 from completely separating from the mounting tube 1 without affecting the translation and rotation of the movable tube 6, thereby ensuring the use effect of the laparoscopic electric stapler.

[0031] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric stapler for laparoscope, comprising a mounting tube (1) and a driving member (2), wherein the mounting tube (1) and the driving member (2) are fixedly connected, and characterized in that: The output end of the driving member (2) is fixedly connected to a transmission rod (12); the outer wall of the transmission rod (12) is screwedly connected to a pushing cylinder (11) slidably connected to the inner wall of the mounting cylinder (1); the inner wall of the mounting cylinder (1) is slidably connected to a moving cylinder (6); a tooth column (7) is rotatably connected inside the moving cylinder (6); the tooth column (7) and the outer wall of the moving cylinder (6) are respectively fixedly connected to a movable matching plate (4) and a fixed matching plate (5); a transmission component for linking the pushing cylinder (11) with the tooth column (7) is arranged inside the moving cylinder (6); and a positioning component for positioning the moving cylinder (6) is arranged on the inner wall of the mounting cylinder (1).

2. The laparoscopic electric stapler according to claim 1, characterized in that: The outer wall of the pushing cylinder (11) is fixedly connected with a sliding block (13), and the sliding block (13) is slidably connected with the inner wall of the mounting cylinder (1) via a sliding groove (14).

3. The laparoscopic electric stapler according to claim 2, characterized in that: The outer wall of the movable cylinder (6) is rotatably connected to a rotating ring (16), and the outer wall of the rotating ring (16) is fixedly connected to a protrusion (17) that slidably cooperates with the sliding groove (14).

4. The laparoscopic electric stapler according to claim 3, characterized in that: The transmission assembly comprises a transmission block (9) located in the middle of the moving cylinder (6); a rack (8) meshingly connected to a toothed column (7) is fixedly connected to the outer wall of the transmission block (9); and a spring (10) is fixedly connected between a side of the transmission block (9) away from the rack (8) and the inner wall of the moving cylinder (6).

5. The laparoscopic electric stapler according to claim 4, characterized in that: The positioning assembly comprises a positioning rod (3), the outer wall of the positioning rod (3) is screwed and connected to the inner wall of the installation cylinder (1), and the open end of the positioning rod (3) abuts against the outer wall of the moving cylinder (6).

6. The laparoscopic electric stapler according to claim 5, characterized in that: The outer wall of the installation cylinder (1) is fixedly connected to an outer block (15), the top of the outer block (15) is arranged to be a plane, and the outer wall of the positioning rod (3) is screwed and connected to the inner wall of the outer block (15).

7. The laparoscopic electric stapler according to claim 6, characterized in that: The open end of the positioning rod (3) is wrapped with a rubber sleeve.

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