An anti-accidental contact structure for an anastomosis device

Abstract

This utility model discloses an anti-accidental activation structure for a stapler, including a stapler body and a cutting blade disposed within the stapler body; a protective lock is rotatably mounted at the tail end of the stapler body; a limiting mechanism is provided on the inner side of the protective lock to limit the tail end of the cutting blade; an anti-rotation mechanism is provided on the protective lock to lock the stapler body; and a reset mechanism is provided between the protective lock and the stapler body for resetting the protective lock after accidental activation. The protective lock, limiting mechanism, anti-rotation mechanism, and reset mechanism of this utility model work together to form a three-layer anti-accidental activation protection; the limiting mechanism directly locks the cutting blade position to prevent accidental activation; the anti-rotation mechanism ensures the protective lock is stably locked; and the reset mechanism automatically restores the protective lock to its initial position after accidental activation, thereby avoiding damage to the stapler due to misalignment of the protective structure after docking with the instrument.

Description

Technical Field

[0001] This utility model relates to the field of anastomosis device technology, and in particular to an anti-accidental contact structure for anastomosis device. Background Technology

[0002] Currently, staplers are equipped with protective structures during production to prevent accidental contact during transportation or surgery. If accidentally contacted, the protective structure will shift, deform or break after docking with the instrument, thus damaging the stapler.

[0003] Therefore, it is necessary to design an anti-accidental contact structure for the stapler to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-accidental contact structure for an anastomosis device.

[0005] The technical solution of this utility model is: an anti-accidental contact structure for a stapler, including a stapler body and a cutting blade disposed inside the stapler body; a protective lock is rotatably mounted on the tail end of the stapler body; a limiting mechanism is provided on the inner side of the protective lock to limit the tail end of the cutting blade; an anti-rotation mechanism is provided on the protective lock to lock the stapler body; and a reset mechanism is provided between the protective lock and the stapler body for resetting the protective lock after accidental contact.

[0006] The protective lock has a C-shaped cross-section; the protective lock is snapped onto the tail end of the stapler body and rotates relative to the tail end of the stapler body.

[0007] The limiting mechanism includes a limiting boss located inside the protective lock; the stapler body has a through groove into which the limiting boss extends; the tail end of the cutting blade has a limiting slot; the limiting boss and the limiting groove of the cutting blade cooperate to limit the cutting blade.

[0008] The anti-rotation mechanism includes anti-rotation blocks symmetrically arranged on both sides of the end of the protective lock; the inner side of the anti-rotation block is provided with an anti-rotation protrusion; the two sides of the stapler body are provided with anti-rotation grooves corresponding to the two anti-rotation protrusions.

[0009] The reset mechanism includes a reset spring disposed between the limiting boss and the side wall of the through groove.

[0010] A first mounting hole is provided on one side wall of the through groove; a second mounting hole is provided on the side wall of the limiting boss corresponding to the first mounting hole; the two ends of the reset spring are respectively provided in the first mounting hole and the second mounting hole.

[0011] The above technical solution has the following beneficial effects: (1) The protective lock, limit mechanism, anti-rotation mechanism and reset mechanism of the present invention work together to form a three-layer anti-accidental contact protection; the limit mechanism directly locks the position of the cutting blade to prevent the cutting blade from being accidentally activated; the anti-rotation mechanism ensures that the protective lock is stably locked; the reset mechanism will automatically restore the protective lock to the initial position after accidental contact, thereby avoiding the problem of damage to the stapler after docking due to the displacement of the protective structure.

[0012] (2) This utility model adopts a C-type snap-fit ​​protective lock design, which not only ensures the tight assembly of the protective lock and the stapler body, but also allows the protective lock to rotate freely. This not only makes installation more convenient, but also ensures the stability of the protective lock rotation.

[0013] (3) This utility model uses a limiting boss to limit the cutting blade in conjunction with the limiting slot of the cutting blade, which simplifies the limiting structure.

[0014] (4) This utility model uses symmetrically arranged anti-rotation blocks to prevent the protective lock from rotating, making the anti-rotation effect more reliable.

[0015] (5) This utility model uses a reset spring and a limiting boss to reset the protective lock, making the structure simpler. Attached Figure Description

[0016] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

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

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the limiting mechanism of this utility model.

[0020] Figure 4 This is an exploded view of the present invention.

[0021] The labels in the attached diagram are:

[0022] Anastomosis device body 1, through groove 1-1, protective lock 2, limit mechanism 3, anti-rotation mechanism 4, anti-rotation block 4-1, anti-rotation protrusion 4-2, anti-rotation groove 4-3, reset mechanism 5. Detailed Implementation

[0023] (Example 1)

[0024] See Figures 1 to 4An anti-accidental activation structure for a stapler according to this embodiment includes a stapler body 1 and a cutting blade disposed within the stapler body 1; a protective lock 2 is rotatably mounted on the tail end of the stapler body 1; a limiting mechanism 3 is provided on the inner side of the protective lock 2 to limit the tail end of the cutting blade; an anti-rotation mechanism 4 is provided on the protective lock 2 to lock the stapler body 1; and a reset mechanism 5 is provided between the protective lock 2 and the stapler body 1 to reset the protective lock 2 after accidental activation.

[0025] Furthermore, the protective lock 2 has a C-shaped cross-section; the protective lock 2 is snapped onto the tail end of the stapler body 1 and maintains relative rotation with the tail end of the stapler body 1. This embodiment adopts a C-shaped snap-fit ​​protective lock 2 design, which not only ensures a tight fit between the protective lock 2 and the stapler body 1, but also allows the protective lock 2 to rotate freely, making installation more convenient and ensuring the stability of the rotation of the protective lock 2.

[0026] Furthermore, the limiting mechanism 3 includes a limiting boss located inside the protective lock 2; the stapler body 1 has a through groove 1-1 into which the limiting boss extends; the tail end of the cutting blade has a limiting slot; the limiting boss cooperates with the limiting groove of the cutting blade to limit the cutting blade. In this embodiment, the limiting boss cooperates with the limiting slot of the cutting blade to limit the cutting blade, simplifying the limiting structure.

[0027] Furthermore, the anti-rotation mechanism 4 includes anti-rotation blocks 4-1 symmetrically arranged on both sides of the end of the protective lock 2; the inner side of the anti-rotation block 4-1 is provided with anti-rotation protrusions 4-2; the two sides of the stapler body 1 are provided with anti-rotation grooves 4-3 corresponding to the two anti-rotation protrusions 4-2. In this embodiment, the symmetrically arranged anti-rotation blocks 4-1 are used to prevent the protective lock 2 from rotating, and the anti-rotation effect is more reliable.

[0028] Furthermore, the reset mechanism 5 includes a reset spring disposed between the limiting boss and the side wall of the through groove 1-1. A first mounting hole is provided on one side wall of the through groove 1-1; a second mounting hole is provided on the side wall of the limiting boss corresponding to the first mounting hole; the two ends of the reset spring are respectively disposed in the first mounting hole and the second mounting hole. In this embodiment, the reset spring and the limiting boss cooperate to reset the protective lock 2, resulting in a simpler structure.

[0029] In this embodiment, the protective lock 2 of the anti-accidental contact structure of the stapler works in conjunction with the limiting mechanism 3, the anti-rotation mechanism 4, and the reset mechanism 5 to form a three-layer anti-accidental contact protection. The limiting mechanism 3 directly locks the position of the cutting blade to prevent the cutting blade from being accidentally activated. The anti-rotation mechanism 4 ensures that the protective lock 2 is stably locked. The reset mechanism 5 automatically restores the protective lock 2 to its initial position after accidental contact, thereby avoiding the problem of damage to the stapler after docking due to the displacement of the protective structure.

[0030] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A structure for preventing accidental contact of a stapler, characterized in that: The device includes a stapler body (1) and a cutting blade disposed within the stapler body (1); a protective lock (2) is rotatably mounted on the tail end of the stapler body (1); a limiting mechanism (3) is provided on the inner side of the protective lock (2) to limit the tail end of the cutting blade; an anti-rotation mechanism (4) is provided on the protective lock (2) to lock the stapler body (1); a reset mechanism (5) is provided between the protective lock (2) and the stapler body (1) for resetting the protective lock (2) after accidental activation.

2. The anti-accidental contact structure for a stapler according to claim 1, characterized in that: The protective lock (2) has a C-shaped cross section; the protective lock (2) is engaged with the tail end of the stapler body (1) and maintains relative rotation with the tail end of the stapler body (1).

3. The anti-accidental contact structure for a stapler according to claim 1, characterized in that: The limiting mechanism (3) includes a limiting boss located inside the protective lock (2); the stapler body (1) has a through groove (1-1) into which the limiting boss extends; the tail end of the cutting blade has a limiting slot; the limiting boss and the limiting groove of the cutting blade cooperate to limit the cutting blade.

4. The anti-accidental contact structure for a stapler according to claim 1, characterized in that: The anti-rotation mechanism (4) includes anti-rotation blocks (4-1) symmetrically arranged on both sides of the end of the protective lock (2); the inner side of the anti-rotation block (4-1) is provided with anti-rotation protrusions (4-2); the two sides of the stapler body (1) are provided with anti-rotation grooves (4-3) corresponding to the two anti-rotation protrusions (4-2).

5. The anti-accidental contact structure for a stapler according to claim 3, characterized in that: The reset mechanism (5) includes a reset spring disposed between the limiting boss and the side wall of the through groove (1-1).

6. The anti-accidental contact structure for a stapler according to claim 5, characterized in that: A first mounting hole is provided on one side wall of the through groove (1-1); a second mounting hole is provided on the side wall of the limiting boss corresponding to the first mounting hole; the two ends of the reset spring are respectively provided in the first mounting hole and the second mounting hole.

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