CN212037631U - Firing bar locking mechanism and anastomat - Google Patents
Firing bar locking mechanism and anastomat Download PDFInfo
- Publication number
- CN212037631U CN212037631U CN202020301388.XU CN202020301388U CN212037631U CN 212037631 U CN212037631 U CN 212037631U CN 202020301388 U CN202020301388 U CN 202020301388U CN 212037631 U CN212037631 U CN 212037631U
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- firing
- locking
- plane section
- firing rod
- connector
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Abstract
The utility model belongs to the field of medical equipment, especially relate to a firing bar locking mechanism and anastomat. The trigger rod locking mechanism comprises a nail box upper cover, a locking reset piece and a trigger rod connector used for being connected with a cutting knife assembly, wherein a trigger rod locking piece rotationally connected with the trigger rod connector is arranged on the trigger rod connector, a plane section and an inclined plane section which are connected end to end are arranged in the nail box upper cover, and the trigger rod connector is driven by translation of the trigger rod connector to be respectively attached to the plane section and the inclined plane section in the operation process; when the locking piece of the firing rod is in the unlocking position, the locking reset piece drives the locking piece of the firing rod to turn over and open to be attached to the inclined plane section; when the firing bar locking piece is in the locking position, the firing bar locking piece is attached to the plane section. The utility model has the advantages that: the locking piece of the firing rod can be flexibly switched between the locking position and the unlocking position, the structure is simple, the firing rod is convenient to connect, the rotation alignment is not needed during the connection, and the disassembly and the assembly are convenient.
Description
Technical Field
The utility model belongs to the field of medical equipment, especially relate to a firing bar locking mechanism and anastomat.
Background
The minimally invasive surgery has the advantages of small local trauma, light systemic reaction, quick postoperative recovery and the like, thereby being widely applied. The anastomat is a surgical instrument commonly used in minimally invasive surgery, particularly an endoscopic anastomat is commonly used, and a cutting knife assembly of the endoscopic anastomat is mainly pushed to operate through a firing rod. At present traditional firing bar and firing bar connector need counterpoint when being connected just can realize locking or unblock, and the connection operation is inconvenient, and the dismouting is consuming time hard.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims to provide a trigger bar locking mechanism and anastomat for the structure of trigger bar locking mechanism is complicated among the solution prior art, need counterpoint, the inconvenient scheduling problem of dismouting when being connected with the trigger bar.
In order to achieve the above and other related purposes, the utility model provides a trigger bar locking mechanism, which comprises a nail box upper cover, a locking reset piece and a trigger bar connector connected with a cutting knife assembly, wherein the trigger bar connector is provided with a trigger bar locking piece rotationally connected with the trigger bar connector, the nail box upper cover is internally provided with a plane section and an inclined plane section which are connected end to end, and the trigger bar connector is translated to drive the trigger bar locking piece to be respectively attached to the plane section and the inclined plane section in the operation process; when the locking piece of the firing rod is in the unlocking position, the locking reset piece drives the locking piece of the firing rod to turn over and open to be attached to the inclined plane section; when the firing bar locking piece is in the locking position, the firing bar locking piece is attached to the plane section.
The utility model has the advantages that: the locking piece of the firing rod can be flexibly switched between the locking position and the unlocking position, the structure is simple, the firing rod is convenient to connect, the rotation alignment is not needed during the connection, and the disassembly and the assembly are convenient.
Optionally, the firing bar locking piece comprises a bottom plate rotationally connected with the firing bar connector, two oppositely arranged support lugs are arranged on the bottom plate in a protruding mode, and a clamping groove used for being clamped with the firing bar is formed between the two support lugs and the bottom plate.
Optionally, the card slot is of a U-shaped structure.
Optionally, the firing bar lockout is rotationally coupled to the firing bar connector by a pin.
Optionally, the locking reset member is a torsion spring.
Optionally, a cavity penetrating along the axial direction of the nail box upper cover is arranged in the nail box upper cover, and the plane section and the inclined plane section are arranged in the cavity.
The beneficial effect of adopting the above optional scheme is: simple structure, easy dismounting, the firm stability of assembly has improved the reliability.
The anastomat comprises a firing rod and the firing rod locking mechanism, wherein one end of the firing rod extends into a firing rod connector and drives the firing rod connector to move.
Optionally, a groove for locking and matching with the firing bar locking piece when the firing bar is in the locking position is annularly arranged at one end of the firing bar extending into the firing bar connector.
Optionally, the nail box further comprises a cutter assembly arranged in the upper cover of the nail box, and the firing rod connector is arranged on the cutter assembly and drives the cutter assembly to move.
Optionally, the stapler further comprises a nail box assembly and a device body, the nail box assembly and the device body are connected through a gun barrel assembly, the nail box upper cover is installed in the nail box assembly, one end of the firing rod extends into the nail box upper cover to be matched with the firing rod connector for operation, and the other end of the firing rod penetrates through the gun barrel assembly to be connected with the device body.
The utility model has the advantages that: the firing rod can be quickly assembled and disassembled with the firing rod locking mechanism without rotating and aligning, the assembly is simple and convenient, and the assembly structure is stable and reliable.
Drawings
Fig. 1 is a schematic structural view of a firing bar connector of a firing bar locking mechanism of the present invention;
FIG. 2 is a cross-sectional view of the firing bar connector of the firing bar locking mechanism of the present invention;
FIG. 3 is a schematic structural view of the locking member of the striking rod locking mechanism of the present invention in an unlocked position;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic structural view of the locking member of the striking rod locking mechanism of the present invention in the locking position;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;
FIG. 7 is a partial cross-sectional view of the upper cover of the staple cartridge of the firing bar locking mechanism of the present invention;
fig. 8 is a schematic structural diagram of the stapler of the present invention.
Description of reference numerals
1, a machine body;
2 a barrel assembly;
3, a nail box component;
31 a firing bar connector;
32 a firing bar lockout;
33, covering the nail box;
331 a bevel section;
332, a horizontal segment;
34 locking the reset piece;
35 pins;
4, cutting knife components;
5 firing bar.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the terms "upper", "lower", "left", "right", "middle" and "one" used herein are for clarity of description, and are not intended to limit the scope of the invention, but rather the scope of the invention.
As shown in fig. 1 to 8, the utility model discloses a trigger bar locking mechanism, including nail casket upper cover 33, locking reset piece 34 and be used for the trigger bar connector 31 of being connected with cutting knife tackle spare 4, be equipped with on the trigger bar connector 31 rather than rotate the trigger bar locking piece 32 of being connected, the trigger bar locking piece 32 can rotate with the trigger bar connector 31 through round pin 35 and be connected for the trigger bar locking piece 32 can rotate the adjustment position around round pin 35, thereby realizes the switching in unlocking position and locking position. The staple cartridge upper cover 33 is internally provided with a plane section 332 and an inclined plane section 331 which are connected end to end, and the firing rod connector 31 is translated under the action of the firing rod 5 to drive the firing rod locking piece 32 to be respectively attached to the plane section 332 and the inclined plane section 331 in the running process. Wherein, a cavity body which penetrates along the axial direction is arranged in the nail box upper cover 33, and the plane section 332 and the inclined plane section 331 are arranged in the cavity body. When the firing bar locking piece 32 is in the unlocking position, the locking reset piece 34 drives the firing bar locking piece 32 to turn over and open to be attached to the inclined plane section 331; when the firing bar lock 32 is in the locked position, the firing bar lock 32 abuts the planar section 332. Locking reset piece 34 can be the torsional spring, for the percussion retaining member 32 provides the restoring force, when the percussion bar retaining member 32 is in the locking position, the torsional spring warp and produces elasticity, when the percussion bar retaining member 32 breaks away from with planar segment 332, planar segment 332's restrictive force disappears, drives the upset of percussion retaining member 32 under the effort of locking reset piece 34 and opens and laminate with inclined plane section 331 for percussion retaining member 32 is switched to the unblock position by the locking position.
As shown in fig. 1 to 6, the firing bar locking member 32 includes a bottom plate rotatably connected to the firing bar connector 31, two oppositely disposed lugs are protruded from the bottom plate, the two lugs and the bottom plate form a clamping groove for clamping with the firing bar 5, the clamping groove can be a U-shaped structure, and when the firing bar locking member 32 is in a locking position, the firing bar 5 is placed in the clamping groove.
As shown in fig. 1 to 8, the utility model discloses an anastomat, including nail casket subassembly 3, ware body 1, firing bar 5, cutting knife subassembly 4 and aforementioned firing bar locking mechanism, nail casket subassembly 3 and ware body 1 are connected through barrel subassembly 2, install in nail casket subassembly 3 nail casket upper cover 33, in firing bar 5's one end stretches into nail casket upper cover 33 to with the firing bar connector 31 cooperation operation of firing bar locking mechanism, drive firing bar connector 31 promptly and remove, the other end of firing bar 5 passes barrel subassembly 2 and is connected with ware body 1. Wherein, the one end ring that the firing bar 5 stretches into firing bar connector 31 is equipped with and is in the recess of the locking cooperation of firing bar retaining member 32 when locking the position, and when firing bar retaining member 32 was in when locking the position, the recess was blocked to the draw-in groove for it is spacing with 5 axial displacement of firing bar to make the firing bar 5 just drive the removal of firing bar connector 31 along its axial displacement. The cutting knife assembly 4 is mounted in the magazine upper cover 33, and the firing bar connector 31 is mounted on the cutting knife assembly 4, thereby moving the cutting knife assembly 4.
The working process is as follows: the trigger bar 5 moves to be close to the trigger bar connector 31, the trigger bar 5 is contacted with the trigger bar connector 31 to push the trigger bar connector 31 and the cutting knife assembly 4 to move forwards together, in the moving forward process, the trigger bar locking piece 32 is separated from the inclined plane section 331 and is attached to the plane section 332, at the moment, the clamping groove and the groove of the trigger bar locking piece 32 are matched to clamp the trigger bar 5, the trigger bar locking piece 32 is located at the locking position, after the cutting operation is completed, the trigger bar 5 moves backwards, and drives the cutting knife assembly to retreat and reset through the trigger bar connector 31, when the cutting knife assembly retreats to the initial position, the trigger bar locking piece retreats to the inclined plane section, the trigger bar locking piece 32 is opened under the effect of the locking reset piece 34 and is attached to the inclined plane section 331, the trigger bar locking piece 32 is located at the unlocking position at the moment.
The utility model discloses a simple compact structural design for the trigger bar can be fast accurate drive cutting assembly remove the cutting, reset, and the trigger bar just accomplishes the switching with trigger bar connector locking and unblock state at the removal in-process, and the trigger bar directly stretches into just can be connected with trigger bar locking mechanism in the nail casket upper cover, need not to rotate the trigger bar and just can accomplish the assembly to the particular position, need not to counterpoint, dismouting simple and convenient, stable in structure is reliable.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A trigger bar locking mechanism which is characterized in that: the nail box locking device comprises a nail box upper cover, a locking reset piece and a firing rod connector, wherein the firing rod connector is used for being connected with a cutting knife assembly, a firing rod locking piece which is rotationally connected with the firing rod connector is arranged on the firing rod connector, a plane section and an inclined plane section which are connected end to end are arranged in the nail box upper cover, and the firing rod connector is driven by translation of the firing rod connector to be respectively attached to the plane section and the inclined plane section in the operation process; when the locking piece of the firing rod is in the unlocking position, the locking reset piece drives the locking piece of the firing rod to turn over and open to be attached to the inclined plane section; when the firing bar locking piece is in the locking position, the firing bar locking piece is attached to the plane section.
2. The firing bar locking mechanism of claim 1, wherein: the trigger bar locking piece comprises a bottom plate which is rotatably connected with a trigger bar connector, two oppositely arranged support lugs are arranged on the bottom plate in an upward protruding mode, and the two support lugs and the bottom plate form clamping grooves used for being clamped with the trigger bar.
3. The firing bar locking mechanism of claim 2, wherein: the clamping groove is of a U-shaped structure.
4. The firing bar locking mechanism of claim 1, wherein: the firing bar locking piece is rotationally connected with the firing bar connector through a pin.
5. The firing bar locking mechanism of claim 1, wherein: the locking reset piece is a torsion spring.
6. The firing bar locking mechanism of claim 1, wherein: the nail box upper cover is internally provided with a cavity which penetrates through the nail box upper cover along the axial direction of the nail box upper cover, and the plane section and the inclined plane section are arranged in the cavity.
7. A stapler, comprising a firing bar, characterized in that: the firing bar locking mechanism of any one of claims 1 to 4 further comprising an end of the firing bar extending into the firing bar connector and moving the firing bar connector.
8. The stapler according to claim 7, wherein: and a groove matched with the locking piece of the firing rod when the firing rod is located at the locking position is annularly arranged at one end of the firing rod extending into the firing rod connector.
9. The stapler according to claim 7, wherein: the nail box is characterized by further comprising a cutting knife assembly arranged in the nail box upper cover, and the firing rod connector is arranged on the cutting knife assembly and drives the cutting knife assembly to move.
10. The stapler according to claim 7, wherein: the nail box assembly is connected with the instrument body through the gun barrel assembly, the nail box upper cover is installed in the nail box assembly, one end of the firing rod extends into the nail box upper cover to be matched with the firing rod connector for operation, and the other end of the firing rod penetrates through the gun barrel assembly to be connected with the instrument body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301388.XU CN212037631U (en) | 2020-03-12 | 2020-03-12 | Firing bar locking mechanism and anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020301388.XU CN212037631U (en) | 2020-03-12 | 2020-03-12 | Firing bar locking mechanism and anastomat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212037631U true CN212037631U (en) | 2020-12-01 |
Family
ID=73531643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020301388.XU Active CN212037631U (en) | 2020-03-12 | 2020-03-12 | Firing bar locking mechanism and anastomat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212037631U (en) |
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2020
- 2020-03-12 CN CN202020301388.XU patent/CN212037631U/en active Active
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