Swing head angle manual reset mechanism and electric endoscope anastomat thereof

Abstract

The invention relates to the technical field of anastomats, in particular to a swing head angle manual reset mechanism and an electric endoscope anastomat with the swing head angle manual reset mechanism. The swing head angle manual reset mechanism comprises a swing head, a drag hook assembly and a reset piece; the drag hook assembly is movably arranged in the device body in a penetrating mode and hinged to one side of the swing head so as to drive the nail bin assembly to steer or reset, and the reset piece is manually driven and connected with the rear end of the drag hook assembly so as to drive the drag hook assembly to move front and back. According to the electric endoscope anastomat, the swing head manual reset mechanism is additionally arranged on the electric endoscope anastomat, the pull hook assembly can be driven to move front and back by manually pulling the reset piece, and therefore the swing head is reset, and the situation that a nail bin assembly is difficult to take out due to the fact that the swing head cannot be reset when an electric control structure breaks down is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of staplers, and in particular to a manual resetting mechanism for a swing head angle and an electric laparoscopic stapler thereof. Background Art

[0002] An electric laparoscopic stapler generally includes an instrument body and a stapler assembly arranged at the front end of the instrument body, and a swing head is provided between the two to drive the stapler assembly to turn under the drive of a control mechanism so as to reach the lesion site and perform cutting and suturing. When initially entering the abdominal cavity, the stapler assembly and the instrument body are coaxially arranged. After entering the abdominal cavity, in order to reach the lesion site, the stapler assembly needs to turn. At this time, the stapler assembly and the instrument body are not coaxial. When the operation is completed, the stapler assembly needs to be reset to make it coaxial with the instrument body before it can be removed.

[0003] The electric laparoscopic staplers in the prior art all electrically control the steering and resetting of the staple magazine assembly, and do not have a manual resetting function. The circuit structure is not reliable and often fails. When the electric laparoscopic stapler fails after the staple magazine assembly is turned, the staple magazine assembly cannot be reset and is difficult to remove. The stapler needs to be destroyed and the cutter transmission mechanism needs to be forcibly pulled to reset the staple magazine assembly. If the cutter transmission mechanism cannot be pulled, another operation is required to remove the staple magazine assembly. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that the electric laparoscopic staplers in the prior art all control the steering and resetting of the staple magazine assembly by electric control, and do not have a manual resetting function, and the circuit structure has low reliability and often fails. When the stapler fails after the staple magazine assembly is turned, the staple magazine assembly cannot be reset and is difficult to remove. A manual resetting mechanism for the swing head angle and an electric laparoscopic stapler thereof are now provided.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: a manual resetting mechanism for the swing head angle, which is arranged between the body of the stapler and the staple cartridge assembly and is used to manually drive the staple cartridge assembly to reset after turning, and the resetting mechanism includes:

[0006] A swing head, which is arranged at the rear end of the nail magazine assembly and is hinged to the body of the device;

[0007] A hook assembly is movably disposed inside the body of the device and is hinged to one side of the swing head to drive the nail magazine assembly to turn or reset;

[0008] The reset member is manually driven and connected to the rear end of the hook assembly to drive the hook assembly to move forward and backward.

[0009] Furthermore, the outer cover of the reset member is provided with a cover, and the cover has protruding parts on both sides, and the main shell of the device body is provided with a slot for the cover to be slidably inserted.

[0010] Furthermore, a clamping portion is bent at the rear end of the hook assembly, and a clamping groove is provided on the reset member for the clamping portion to be clamped into.

[0011] Furthermore, the device body includes a control component and a sleeve component located at the front end of the control component, the sleeve component includes a front sleeve and a rear sleeve, the hook component includes a front hook axially inserted into the front sleeve and a rear hook axially inserted into the rear sleeve, and the front sleeve is provided with a front slide groove for the front hook to slide, and the rear sleeve is provided with a rear slide groove for the rear hook to slide, and the front hook and the rear hook are hooked to each other.

[0012] Furthermore, the front end of the inner side of the cover is provided with a front limiting portion for abutting against the main shell body, and the rear end is provided with a rear limiting portion abutting against the main shell body.

[0013] Furthermore, a limiting sleeve for limiting the position of the cover is provided at the front end of the cover, and the limiting sleeve is rotatably fixed on the main shell.

[0014] Furthermore, the inner wall of the limit sleeve protrudes to form a locking portion, and the outer wall of the main shell is recessed to form a locking groove and an unlocking groove that cooperate with the locking portion. The locking groove and the unlocking groove are arranged adjacent to each other and both are located on the rotation trajectory of the locking portion, and the front end of the unlocking groove has an opening for the locking portion to enter and exit.

[0015] Furthermore, a handle is protruding from the outer peripheral wall of the limiting sleeve.

[0016] Furthermore, the cover is provided with a plurality of anti-slip protrusions arranged at intervals.

[0017] An electric laparoscopic stapler comprises the above-mentioned manual resetting mechanism for the swing head angle.

[0018] Beneficial effects of the present invention: The present invention adds a manual resetting mechanism for the swing head to the electric laparoscopic stapler, and the hook assembly can be driven to move forward and backward by manually pulling the resetting member, thereby resetting the swing head, thereby avoiding the situation in which the staple magazine assembly is difficult to remove due to a failure of the electric control structure that makes it impossible to reset the swing head. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 is a schematic diagram of the structure of the stapler;

[0021] Figure 2 yes Figure 1 A cross-sectional view of part A;

[0022] Figure 3 It is a front view of the present invention;

[0023] Figure 4 is an exploded view of the present invention;

[0024] In the figure:

[0025] 1. Device body; 101. Main housing; 1011. Slot; 1012. Locking slot; 1013. Unlocking slot; 1014. Opening; 102. Front sleeve; 103. Rear sleeve;

[0026] 2. Nail magazine assembly;

[0027] 3. Shake your head;

[0028] 4. hook assembly; 401. clamping portion; 402. front hook; 403. rear hook;

[0029] 5. Reset member; 501. Card slot;

[0030] 6. Cover; 601. Protrusion; 602. Front limit portion; 603. Rear limit portion; 604. Anti-slip protrusion;

[0031] 7. Limit sleeve; 701. Locking part; 702. Handle;

[0032] 8. Driving rod. DETAILED DESCRIPTION

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not to be taken in a limiting sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0034] Embodiment 1:

[0035] like Figure 1-Figure 4 As shown, a manual resetting mechanism for the swing head angle is arranged between the stapler body 1 and the stapler assembly 2 and is used to manually drive the stapler assembly 2 to be reset after turning so as to be coaxial with the stapler body 1. The resetting mechanism includes:

[0036] The swing head 3 is arranged at the rear end of the nail magazine assembly 2 and is hinged to the body 1;

[0037] The hook assembly 4 is movably arranged inside the body 1 and is hinged to one side of the swing head 3 to drive the nail magazine assembly 2 to turn or reset; when the hook assembly 4 moves backward, it can drive the nail magazine assembly 2 to rotate to the side where it is located, and when the hook assembly 4 moves forward, it can drive the nail magazine assembly 2 to rotate to the other side;

[0038] The reset member 5 is manually driven and connected to the rear end of the hook assembly 4 to drive the hook assembly 4 to move forward and backward. The rear end of the hook assembly 4 is connected to a driving rod 8, which is electrically controlled. It is used to electrically control the hook assembly 4 to move forward and backward to drive the swing head 3 to turn or reset. When the electrical control structure of the driving rod 8 fails and the swing head 3 cannot be reset, the reset member 5 is manually pulled forward or backward to start, thereby driving the hook assembly 4 to move forward and backward, and the hook assembly 4 drives the swing head 3 to rotate and reset.

[0039] In some examples, the reset member 5 is externally covered with a cover 6, and the cover 6 has protrusions 601 protruding on both sides. The main shell 101 of the device body 1 is provided with a slot 1011 for the protrusion 601 to slide into, thereby realizing a sliding connection between the cover 6 and the main shell 101. When manual reset is required, the cover 6 is slid to separate it from the main shell 101, and the reset member 5 is exposed for manual operation.

[0040] In some examples, the hook assembly 4 is bent at the rear end to form a snap-fit ​​portion 401 , and the reset member 5 is provided with a snap-fit ​​groove 501 for the snap-fit ​​portion 401 to snap into. The snap-fit ​​portion 401 snaps into the snap-fit ​​groove 501 to fix the hook assembly 4 and the reset member 5 .

[0041] In some examples, the device body 1 includes a control component and a sleeve component located at the front end of the control component, the sleeve component includes a front sleeve 102 and a rear sleeve 103, the hook assembly 4 includes a front hook 402 axially inserted into the front sleeve 102 and a rear hook 403 axially inserted into the rear sleeve 103, and the front sleeve 102 is provided with a front sliding groove for the front hook 402 to slide, and the rear sleeve 103 is provided with a rear sliding groove for the rear hook 403 to slide, and the front hook 402 and the rear hook 403 are hooked with each other.

[0042] In some examples, the front inner front end of the cover 6 is provided with a front limit portion 602 for abutting against the main shell 101, and the rear end is provided with a rear limit portion 603 abutting against the main shell 101. The front limit portion 602 and the rear limit portion 603 can limit the freedom of the cover 6 to move backward.

[0043] In some examples, a limiting sleeve 7 for limiting the position of the cover 6 is provided at the front end thereof, and the limiting sleeve 7 is rotatably fixed on the main shell 101 . The limiting sleeve 7 can limit the freedom of the cover 6 to move forward.

[0044] In some examples, the inner circumferential wall of the limiting sleeve 7 protrudes to form a locking portion 701, and the outer circumferential wall of the main shell 101 is recessed to form a locking groove 1012 and an unlocking groove 1013 that cooperate with the locking portion 701. The locking groove 1012 and the unlocking groove 1013 are adjacent to each other and both are located on the rotation trajectory of the locking portion 701. The front end of the unlocking groove 1013 has an opening 1014 for the locking portion 701 to enter and exit; first, the limiting sleeve 7 is axially sleeved on the main shell 101, and the locking portion 701 enters the unlocking groove 1013 from the opening 1014, and then the limiting sleeve 7 is rotated to make the locking portion 701 enter the locking groove 1012 from the unlocking groove 1013, thereby locking the limiting sleeve 7 and the main shell 101 and limiting the cover 6.

[0045] In some examples, a handle 702 is protruded from the outer wall of the limiting sleeve 7, and the handle 702 can be used to facilitate operations such as rotating and moving the limiting sleeve 7.

[0046] In some examples, the cover 6 is provided with a plurality of anti-slip protrusions 604 arranged at intervals, so as to facilitate installation and removal of the cover 6 .

[0047] In some examples, an electric laparoscopic stapler includes the above-mentioned manual head angle reset mechanism.

[0048] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A manual resetting mechanism for the swing head angle, which is arranged between the body (1) and the stapler assembly (2) of the stapler and is used to manually drive the stapler assembly (2) to reset after turning, and is characterized by: The reset mechanism comprises: A swing head (3) is arranged at the rear end of the nail magazine assembly (2) and is hinged to the body (1); A hook assembly (4) is movably disposed inside the body (1) and is hinged to one side of the swing head (3) to drive the nail magazine assembly (2) to turn or reset; and a reset member (5), which is manually driven and connected to the rear end of the hook assembly (4) to drive the hook assembly (4) to move forward and backward.

2. The manual reset mechanism for the swing head angle according to claim 1, characterized in that: The resetting member (5) is externally covered with a cover (6), and the cover (6) has protruding portions (601) protruding on both sides. The main shell (101) of the device body (1) is provided with a slot (1011) for the cover (6) to be slidably inserted.

3. The manual reset mechanism for the swing head angle according to claim 1, characterized in that: The rear end of the hook assembly (4) is bent to form a clamping portion (401), and the reset member (5) is provided with a clamping groove (501) for the clamping portion (401) to be clamped into.

4. The manual reset mechanism for the swing head angle according to claim 1, characterized in that: The device body (1) comprises a control component and a sleeve component located at the front end of the control component, the sleeve component comprises a front sleeve (102) and a rear sleeve (103), the hook component (4) comprises a front hook (402) axially inserted into the front sleeve (102) and a rear hook (403) axially inserted into the rear sleeve (103), and the front sleeve (102) is provided with a front slide groove for the front hook (402) to slide, and the rear sleeve (103) is provided with a rear slide groove for the rear hook (403) to slide, and the front hook (402) and the rear hook (403) are hooked to each other.

5. The manual reset mechanism for the swing head angle according to claim 2, characterized in that: The front end of the inner side of the cover (6) is provided with a front limiting portion (602) for abutting against the main shell (101), and the rear end is provided with a rear limiting portion (603) abutting against the main shell (101).

6. The manual reset mechanism for the swing head angle according to claim 2, characterized in that: A limiting sleeve (7) for limiting the position of the cover (6) is provided at the front end thereof, and the limiting sleeve (7) is rotatably fixed on the main housing (101).

7. The manual reset mechanism for the swing head angle according to claim 6, characterized in that: The inner peripheral wall of the limiting sleeve (7) is protruding to form a locking portion (701), and the outer peripheral wall of the main shell (101) is recessed to form a locking groove (1012) and an unlocking groove (1013) that cooperate with the locking portion (701). The locking groove (1012) and the unlocking groove (1013) are arranged adjacent to each other and both are located on the rotation trajectory of the locking portion (701), and the front end of the unlocking groove (1013) has an opening (1014) for the locking portion (701) to enter and exit.

8. The manual reset mechanism for the swing head angle according to claim 6, characterized in that: A handle (702) is protruding from the outer peripheral wall of the limiting sleeve (7).

9. The manual reset mechanism for the swing head angle according to claim 2, characterized in that: The cover (6) is provided with a plurality of anti-slip protrusions (604) arranged at intervals.

10. An electric laparoscopic stapler, comprising the manual resetting mechanism for the swing head angle as claimed in any one of claims 1 to 9.

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