Linear anastomat with adjustment mechanism

Abstract

The utility model relates to the technical field of linear anastomat, and disclose a linear anastomat with adjusting mechanism, including anastomat casing, anastomat casing one end fixedly connected with push rod, the bottom fixedly connected with handle of anastomat casing, the surface sliding connection of handle has extension shell, the both ends of extension shell all are established with the joint groove, the number of joint groove is multiple. This linear anastomat with adjusting mechanism, the staff moves extension shell down, makes extension shell on the surface of handle sliding, simultaneously through setting up multiple joint grooves at the both ends of extension shell, and cooperate with the use of push spring and joint block, make joint block enter the joint groove in different position, thereby limiting the position of extension shell, the use length of extension shell is adjusted for the staff, so that the hand size of different medical staff, holding habit is different, through adjusting handle.

Description

Technical Field

[0001] This utility model relates to the field of linear staplers, and in particular to a linear stapler with an adjustment mechanism. Background Technology

[0002] In surgical procedures, linear staplers are important surgical instruments widely used for cutting and anastomosing of tissues such as the gastrointestinal tract and blood vessels.

[0003] Most existing linear staplers use a fixed-length handle design. While this design can meet basic usage needs, it cannot adapt to the diverse hand gripping habits of medical staff. For example, medical staff with large hands are prone to limited finger movement and dispersed gripping force, while medical staff with small hands have difficulty fully controlling the handle, resulting in decreased operational stability. In addition, during long surgical operations, the fixed-length handle cannot adapt to the gripping posture adjustment under fatigue, causing excessive tension in the hand muscles of medical staff, which in turn affects the accuracy and flexibility of instrument operation. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing medical staff often encounter problems such as discomfort or inconvenience in using linear staplers due to different hand gripping habits. Therefore, we propose a linear stapler with an adjustment mechanism.

[0005] To achieve the above objectives, this application adopts the following technical solution: a linear stapler with an adjustment mechanism, comprising a stapler housing, a push rod fixedly connected to one end of the stapler housing, a handle fixedly connected to the bottom of the stapler housing, an extension shell slidably connected to the surface of the handle, a plurality of locking grooves being provided at both ends of the extension shell, a movable groove being provided at both ends of the handle, a thrust spring fixedly connected inside the movable groove, a locking block fixedly connected to one end of the thrust spring, and the surface of the locking block slidably connected to the inside of the locking groove.

[0006] Preferably, the outer diameter of the snap-fit ​​block is adapted to the inner diameter of the snap-fit ​​groove.

[0007] Preferably, the surface of the snap-fit ​​block is chamfered.

[0008] Preferably, limit grooves are provided on both sides of the inner cavity of the movable groove, and limit blocks are fixedly connected to both sides of the snap-fit ​​block, with the surface of the limit block slidingly connected to the inside of the limit groove.

[0009] Preferably, anti-slip textured blocks are fixedly connected to both sides of the extended shell, and the number of anti-slip textured blocks is multiple.

[0010] Preferably, a tension spring is fixedly connected to the bottom of the handle, and the bottom of the tension spring is fixedly connected to the bottom of the inner cavity of the extension shell.

[0011] Preferably, stabilizing grooves are provided on both sides of the inner cavity of the extended shell, and stabilizing blocks are fixedly connected to both sides of the handle, with the interior of the stabilizing groove slidably connected to the surface of the stabilizing block.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, the operator moves the extension shell downwards, allowing it to slide on the handle surface. Multiple locking slots are provided at both ends of the extension shell, and with the use of a thrust spring and locking blocks, the locking blocks engage with different slots, thus limiting the position of the extension shell. This allows the operator to adjust the length of the extension shell, accommodating different hand sizes and gripping habits of medical personnel. By adjusting the handle, users can find the most suitable grip and pressure, reducing fatigue during prolonged operation. This ensures accurate firing of the staples and uniform tissue compression, improving anastomosis quality, reducing tissue damage, and ultimately enhancing the precision and efficiency of the surgical procedure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a partial schematic diagram of the handle of this utility model;

[0016] Figure 3 This is a schematic diagram of the extended shell portion of this utility model;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the movable slot of this utility model;

[0018] Figure 5 This is a cross-sectional view of the handle and the extended shell of this utility model.

[0019] Illustration: 1. Anastomosing device housing; 2. Push rod; 3. Handle; 4. Extension shell; 5. Snap-fit ​​groove; 6. Movable groove; 7. Thrust spring; 8. Snap-fit ​​block; 9. Limiting groove; 10. Limiting block; 11. Chamfer; 12. Stabilizing groove; 13. Stabilizing block; 14. Anti-slip textured block; 15. Tension spring. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] Reference Figures 1-4 As shown, this utility model provides a technical solution: a linear stapler with an adjustment mechanism, including a stapler housing 1, a push rod 2 fixedly connected to one end of the stapler housing 1, a handle 3 fixedly connected to the bottom of the stapler housing 1, an extension shell 4 slidably connected to the surface of the handle 3, and multiple locking grooves 5 provided at both ends of the extension shell 4. A movable groove 6 is provided at both ends of the handle 3, a thrust spring 7 fixedly connected inside the movable groove 6, and a locking block 8 fixedly connected to one end of the thrust spring 7. The surface of the locking block 8 slidably connects to the inside of the locking groove 5. The operator moves the extension shell 4 downwards, causing the extension shell 4 to engage with the handle 3. The surface slides, and multiple locking grooves 5 are set at both ends of the extension shell 4. With the use of the thrust spring 7 and locking block 8, the locking block 8 can be locked into the locking groove 5 at different positions, thereby limiting the position of the extension shell 4. This makes it convenient for staff to adjust the length of the extension shell 4. Different medical staff have different hand sizes and grip habits. By adjusting the handle 3, users can find the most suitable grip and force. They are less likely to feel fatigued during long-term operation. This ensures accurate firing of the anastomosis staples and uniform compression of tissue, improves the quality of anastomosis, reduces tissue damage, and thus improves the accuracy and efficiency of surgical operation.

[0022] Reference Figure 3 and Figure 4 As shown in this embodiment: the outer diameter of the snap-fit ​​block 8 is adapted to the inner diameter of the snap-fit ​​groove 5. The adapted size can form a tight fit between the snap-fit ​​block 8 and the snap-fit ​​groove 5, providing sufficient connection strength so that the extension shell 4 can be stably held in the required position after adjustment.

[0023] Reference Figure 4 As shown in this embodiment, the surface of the snap-fit ​​block 8 is provided with a chamfer 11. By providing the chamfer 11, it can play a guiding role when the snap-fit ​​block 8 and the snap-fit ​​groove 5 are snapped together, so that the snap-fit ​​block 8 can be snapped into the snap-fit ​​groove 5 more smoothly, avoiding the problem of snap-fit ​​difficulty caused by excessive friction between the snap-fit ​​block 8 and the snap-fit ​​groove 5.

[0024] Reference Figure 4 As shown in this embodiment: limit grooves 9 are provided on both sides of the inner cavity of the movable groove 6, and limit blocks 10 are fixedly connected to both sides of the snap-fit ​​block 8. The surface of the limit block 10 is slidably connected to the inside of the limit groove 9. By setting the limit groove 9 and the limit block 10 in cooperation, the snap-fit ​​block 8 can be limited, avoiding the snap-fit ​​block 8 from shifting during movement, ensuring that the snap-fit ​​block 8 can slide stably in the movable groove 6, thereby improving the stability and reliability of the adjustment mechanism.

[0025] Reference Figure 3As shown in this embodiment: anti-slip textured blocks 14 are fixedly connected to both sides of the extension shell 4. There are multiple anti-slip textured blocks 14. By setting anti-slip textured blocks 14 and having multiple anti-slip textured blocks 14, the anti-slip function can be achieved when using the linear stapler, avoiding the slippage problem caused by hand sweat or improper operation, thereby improving the use effect of the linear stapler.

[0026] Reference Figure 5 As shown in this embodiment: a tension spring 15 is fixedly connected to the bottom of the handle 3. The bottom of the tension spring 15 is fixedly connected to the bottom of the inner cavity of the extension shell 4. The tension spring 15 enables the operator to provide outward pulling force when adjusting the length of the handle 3 and releasing the fixed relationship between the locking block 8 and the locking groove 5, thereby assisting the extension shell 4 to reset, making it easier for the operator to perform the next adjustment operation, and further improving the ease of use.

[0027] Reference Figure 2 and Figure 3 As shown in this embodiment: stabilizing grooves 12 are provided on both sides of the inner cavity of the extension shell 4, and stabilizing blocks 13 are fixedly connected to both sides of the handle 3. The interior of the stabilizing groove 12 is slidably connected to the surface of the stabilizing block 13. The stabilizing block 13 slides in the stabilizing groove 12, which can limit the swinging and shaking of the handle 3 during the movement, making the movement of the handle 3 more stable and precise. This helps to improve the accuracy of medical staff when operating the anastomosis device, ensure the stability of the instrument position during the anastomosis process, and thus improve the quality of anastomosis.

[0028] Working principle: By moving the extension shell 4 downwards, the operator slides the extension shell 4 on the surface of the handle 3. Simultaneously, multiple locking slots 5 are provided at both ends of the extension shell 4. In conjunction with the push spring 7 and locking blocks 8, the locking blocks 8 engage with different positions within the locking slots 5, thus limiting the position of the extension shell 4. This allows the operator to easily adjust the length of the extension shell 4, accommodating different hand sizes and grip habits of medical personnel. By adjusting the handle 3, users can find the most suitable grip and pressure, ensuring comfortable operation even during extended periods. Easily fatigued, ensuring accurate firing of the staples and uniform tissue compression improves anastomosis quality, reduces tissue damage, and thus enhances the precision and efficiency of surgical procedures. The appropriate size allows for a tight fit between the locking block 8 and the locking groove 5, providing sufficient connection strength so that the extension shell 4 can be stably held in the desired position after adjustment. The chamfer 11 acts as a guide when the locking block 8 and locking groove 5 are engaged, allowing the locking block 8 to smoothly engage in the locking groove 5 and preventing excessive friction between the locking block 8 and locking groove 5. To address the difficulty of locking, the locking block 8 is limited by the combination of the limiting groove 9 and the limiting block 10, preventing it from shifting during movement and ensuring stable sliding within the movable groove 6. This improves the stability and reliability of the adjustment mechanism. Multiple anti-slip textured blocks 14 prevent slippage when using the linear stapler, avoiding slippage caused by hand sweat or improper operation, thus improving the effectiveness of the linear stapler. (Tension spring 1...) The design of part 5 allows the tension spring 15 to provide outward pulling force when the operator adjusts the length of handle 3 and releases the fixed relationship between the locking block 8 and the locking groove 5, thereby assisting the extension shell 4 to reset, facilitating the operator's next adjustment operation and further improving ease of use. The stabilizing block 13 slides in the stabilizing groove 12, which can limit the swinging and shaking of handle 3 during movement, making the movement of handle 3 more stable and precise. This helps to improve the accuracy of medical staff in operating the stapler, ensures the stability of the instrument position during the anastomosis process, and thus improves the quality of anastomosis.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A linear anastomat with a regulating mechanism, comprising an anastomat housing (1), characterized in that: A push rod (2) is fixedly connected to one end of the stapler housing (1). A handle (3) is fixedly connected to the bottom of the stapler housing (1). An extension shell (4) is slidably connected to the surface of the handle (3). Both ends of the extension shell (4) are provided with snap-fit ​​grooves (5). There are multiple snap-fit ​​grooves (5). Both ends of the handle (3) are provided with movable grooves (6). A thrust spring (7) is fixedly connected inside the movable groove (6). A snap-fit ​​block (8) is fixedly connected to one end of the thrust spring (7). The surface of the snap-fit ​​block (8) is slidably connected to the inside of the snap-fit ​​groove (5).

2. The linear stapler with adjustment mechanism according to claim 1, wherein: The outer diameter of the snap-fit ​​block (8) is adapted to the inner diameter of the snap-fit ​​groove (5).

3. The linear stapler with adjustment mechanism according to claim 1, wherein: The surface of the snap-fit ​​block (8) is provided with a chamfer (11).

4. The linear stapler with adjustment mechanism according to claim 1, wherein: Limiting grooves (9) are provided on both sides of the inner cavity of the movable groove (6), and limiting blocks (10) are fixedly connected to both sides of the snap-fit ​​block (8). The surface of the limiting block (10) is slidably connected to the inside of the limiting groove (9).

5. The linear stapler with adjustment mechanism according to claim 1, wherein: Both sides of the extended shell (4) are fixedly connected with anti-slip textured blocks (14), and there are multiple anti-slip textured blocks (14).

6. The linear stapler with adjustment mechanism according to claim 1, wherein: A tension spring (15) is fixedly connected to the bottom of the handle (3), and the bottom of the tension spring (15) is fixedly connected to the bottom of the inner cavity of the extension shell (4).

7. The linear stapler with adjustment mechanism according to claim 1, wherein: The inner cavity of the extended shell (4) is provided with stabilizing grooves (12) on both sides, and stabilizing blocks (13) are fixedly connected to both sides of the handle (3). The interior of the stabilizing groove (12) is slidably connected to the surface of the stabilizing block (13).

Images