Dual-trigger linkage anti-misfire stapler

Abstract

This utility model relates to the field of medical device technology and discloses a dual-trigger linkage anti-accidental firing stapler, including a stapler driving body. A movable handle is movably mounted on the inner side of the handle of the stapler driving body. A locking component is installed inside the handle of the stapler driving body, and multiple positioning grooves are formed on the inner wall of the handle. The movable handle and the locking component are dual-linkage components, both located at the handle of the stapler driving body, allowing the surgeon to perform precise control while operating with one hand. After the locking component releases the restriction on the movable handle, the movable handle is pressed to control the stapler driving body. When a pause is needed, pressure on the locking component can be stopped, causing it to lock the movable handle again. The natural coordinated movement of the thumb and forefinger does not require changing the grip posture, making the operation ergonomic. The dual-trigger design improves surgical safety and significantly reduces the risk of accidental firing.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a dual-trigger linkage anti-misfire anastomosis device. Background Technology

[0002] A stapler is a surgical device used to quickly connect human tissues, primarily to replace traditional manual suturing and improve surgical efficiency and safety.

[0003] Traditional staplers use a single-trigger structure. If the surgeon accidentally touches the button or handle, it can easily lead to accidental firing, causing tissue damage or failure of the stapler. Existing anti-accidental triggering designs (such as safety plugs) require manual switching, which is cumbersome and easily overlooked during the operation. Utility Model Content

[0004] This invention provides a dual-trigger linkage anti-misfire stapler, which is a purely mechanical dual-trigger linkage anti-misfire mechanism that requires no additional operation steps, thus solving the pain point of surgical safety.

[0005] According to one aspect of the present invention, a dual-trigger linkage anti-misfire stapler is provided, including a stapler driving body, a movable handle is movably mounted on the inner side of the handle of the stapler driving body, a locking component is installed inside the handle of the stapler driving body, and multiple positioning grooves are opened on the inner wall of the handle of the stapler driving body.

[0006] The locking component includes a fixed arm, which is fixedly connected to a movable handle. A fixed baffle is fixedly connected to the outside of the fixed arm. A locking groove is formed on the upper surface of the fixed baffle. A stop block is slidably connected inside the locking groove. A stop block limiting rod is fixedly connected to the side of the stop block near the positioning groove. A side guard plate is fixedly connected to the bottom of the stop block limiting rod. A press button is fixedly connected to the bottom of the side guard plate. A press button limiting rod is fixedly connected to the inside of the press button. A linear spring is sleeved on the outside of the press button limiting rod. Both the press button limiting rod and the stop block limiting rod are inserted into the positioning groove.

[0007] Furthermore, the outer surface of the handle of the stapler drive body is provided with an opening for pressing the button.

[0008] Furthermore, a clearance is provided between the fixed baffle and the anastomosis device drive body for the movement of the stop block, and the stop block, the stop block limiting rod, the side guard plate, the pressing button and the pressing button limiting rod are an integral unit.

[0009] Furthermore, the side of the stop block near the fixed stop plate is provided with tenons of the same number as the locking grooves.

[0010] Furthermore, the button has a space reserved inside for the extension and retraction of a linear spring, with the end of the linear spring away from the button located inside the positioning groove.

[0011] In this invention, the dual-trigger design improves surgical safety, with an error operation probability of <0.1% (clinical test data), significantly reducing the risk of accidental firing; the natural coordinated movement of the thumb and forefinger eliminates the need to change the grip posture, making the operation ergonomic; the cost advantage lies in the pure mechanical structure that achieves the anti-misoperation function, with a manufacturing cost of only 15% of that of an electric anti-misoperation solution; this dual-trigger synchronous operation safety method is compatible with linear staplers, circular staplers, and laparoscopic stapler platforms.

[0012] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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.

[0014] Figure 1 This is a schematic diagram of the dual-trigger linkage anti-misfire stapler of this utility model;

[0015] Figure 2 This is a schematic diagram of the locking component of the dual-trigger linkage anti-misfire stapler of this utility model;

[0016] Figure 3 This is a schematic diagram of the sliding block of the dual-trigger linkage anti-misfire stapler of this utility model;

[0017] Figure 4 This is a schematic diagram of the positioning groove opening of the dual-trigger linkage anti-misfire stapler of this utility model.

[0018] Figure 1-4 middle:

[0019] 1- Anastomosing device drive body, 2- Movable handle, 3- Locking component, 4- Positioning groove;

[0020] 30-Fixed arm, 31-Fixed baffle, 32-Locking groove, 33-Block, 34-Block limit rod, 35-Side guard plate, 36-Press button, 37-Press button limit rod, 38-Linear spring. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] Figure 1 This is a schematic diagram of the dual-trigger linkage anti-misfire stapler provided in an embodiment of this utility model. Figure 1 As shown, this dual-trigger linkage anti-accidental firing stapler includes a stapler drive body 1. A movable handle 2 is movably mounted on the inner side of the handle of the stapler drive body 1, and a locking component 3 is installed inside the handle of the stapler drive body 1. The movable handle 2 and the locking component 3 are dual-linkage components, both located at the handle of the stapler drive body 1, allowing the surgeon to operate with one hand while maintaining precision control. During the operation, the safety mechanism of the stapler drive body 1 is first activated, allowing both the movable handle 2 and the locking component 3 to be operated. Then, the locking component 3 can be operated to release the restriction on the movable handle 2. After the restriction is released, the stapler drive body 1 can be controlled by pressing the movable handle 2. If the operation pauses, the pressure on the locking component 3 can be stopped, causing it to lock the movable handle 2 again.

[0023] like Figure 2-3 As shown, the locking component 3 includes a fixed arm 30, which is fixedly connected to a movable handle 2. A fixed baffle 31 is fixedly connected to the outside of the fixed arm 30. A locking groove 32 is formed on the upper surface of the fixed baffle 31. A stop block 33 is slidably connected inside the locking groove 32. A stop block limiting rod 34 is fixedly connected to the side of the stop block 33 near the positioning groove 4. A side guard plate 35 is fixedly connected to the bottom of the stop block limiting rod 34. A press button 36 is fixedly connected to the bottom of the side guard plate 35. A press button limiting rod 37 is fixedly connected to the inner side of the press button 36. A linear spring 38 is sleeved on the outside of the press button limiting rod 37. An opening for the movement of the press button 36 is formed on the outer surface of the handle of the stapler drive body 1. A clearance for the movement of the stop block 33 is reserved between the fixed baffle 31 and the stapler drive body 1. The button 36 can be pressed with the thumb to move it within the opening on the handle of the stapler drive body 1, thereby moving the stop 33 to separate it from the fixed stop 31. After separation, the movable handle 2 can be operated. When it is necessary to relock the movable handle 2, the button 36 can be stopped from being pressed. Under the action of the linear spring 38, the button 36 will be reset, and the stop 33 will relock the fixed stop 31.

[0024] like Figure 3-4As shown, the inner wall of the handle of the stapler drive body 1 has multiple positioning grooves 4. The side of the stop block 33 closest to the fixed stop plate 31 has tenons of the same number as the locking grooves 32. The push button 36 has pre-reserved space for the extension and retraction of a linear spring 38, with the end of the linear spring 38 away from the push button 36 located inside the positioning groove 4. Sufficient movement space is provided inside the handle of the stapler drive body 1. When the stop block 33 contacts the fixed stop plate 31, the tenons insert into the locking grooves 32. Furthermore, as the stop block 33 and the push button 36 move, the stop block limiting rod 34 and the push button limiting rod 37 limit their movement, ensuring accurate insertion and improving locking precision.

[0025] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. Double trigger linkage type misfire prevention firing anastomat, comprising anastomat drive main body (1), characterized in that: The stapler drive body (1) has a movable handle (2) movably mounted on the inner side of the handle, a locking component (3) is installed inside the handle of the stapler drive body (1), and multiple positioning grooves (4) are opened on the inner wall of the handle of the stapler drive body (1). The locking component (3) includes a fixed arm (30), which is fixedly connected to the movable handle (2). A fixed baffle (31) is fixedly connected to the outside of the fixed arm (30). A locking groove (32) is provided on the upper surface of the fixed baffle (31). A stop block (33) is slidably connected inside the locking groove (32). A stop block limiting rod (34) is fixedly connected to the side of the stop block (33) near the positioning groove (4). A side guard plate (35) is fixedly connected to the bottom of the stop block limiting rod (34). A push button (36) is fixedly connected to the bottom of the side guard plate (35). A push button limiting rod (37) is fixedly connected to the inside of the push button (36). A linear spring (38) is sleeved on the outside of the push button limiting rod (37). Both the push button limiting rod (37) and the stop block limiting rod (34) are inserted into the positioning groove (4).

2. The dual trigger linked misfire preventing firing anastomosis device according to claim 1, wherein, The outer surface of the handle of the stapler drive body (1) has an opening for pressing the button (36).

3. The dual-trigger linkage anti-misfire stapler according to claim 1, characterized in that, The fixed baffle (31) and the anastomosis device drive body (1) have a reserved movable gap for the baffle (33). The baffle (33), the baffle limiting rod (34), the side guard plate (35), the pressing button (36) and the pressing button limiting rod (37) are an integral unit.

4. The dual-trigger linkage anti-misfire stapler according to claim 1, characterized in that, The stop block (33) has tenons of the same number as the locking groove (32) on the side near the fixed stop plate (31).

5. The dual-trigger linkage anti-misfire stapler according to claim 1, characterized in that, The button (36) has a reserved space for the extension and retraction of a linear spring (38), and the end of the linear spring (38) away from the button (36) is located inside the positioning groove (4).

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