CN212382683U

CN212382683U - Safety mechanism of electric anastomat

Info

Publication number: CN212382683U
Application number: CN202021068877.1U
Authority: CN
Inventors: 阎峥; 冯雅楠; 马立军
Original assignee: Rebe Medical Devices Changzhou Co ltd
Current assignee: Szeko Precision Machinery Manufacturing Changzhou Co.,Ltd.
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-01-22
Anticipated expiration: 2030-06-11

Abstract

The utility model provides a safety mechanism of an electric anastomat, which relates to the field of electric anastomats, wherein the electric anastomat comprises a shell, a trigger, a gear box, a trigger rod sleeve, a steering lock and a safety mechanism, the safety mechanism comprises a push rod component and a bayonet lock, when a disposable nail box is not installed, the upper part of the bayonet lock is inserted into a clamping groove of the gear box, and the main body part of the bayonet lock is positioned in a first sliding groove, so that a user can not stir the trigger; when the disposable nail box is installed, the disposable nail box sequentially pushes the trigger rod sleeve, the steering lock and the push rod assembly, the push rod assembly drives the upper part of the clamping pin to slide out of the clamping groove, at the moment, a user can stir the trigger, and the safety mechanism can effectively prevent misoperation of the user.

Description

Safety mechanism of electric anastomat

Technical Field

The utility model relates to an electronic anastomat field especially relates to an electronic anastomat's safety mechanism.

Background

The electric anastomat is used for cutting, crossing and inosculating lung, bronchial tissue, stomach and intestine in open or endoscopic surgical operation, and the existing electric anastomat product consists of a cutting anastomat and a disposable nail box, wherein the cutting anastomat mainly comprises a gun-shaped shell, a trigger, a steering lock, a steering knob, a reset cap, a bending mechanism, a firing mechanism and the like; the electric stapler needs to be installed on the cutting stapler in the using process, the once-used nail box is driven by the cutting stapler to realize direction conversion and percussion to advance by the toggling trigger, the cutting stapler has the function of automatically converting the direction and percussion, but the error operation is inevitable in the using process of the existing electric stapler, namely when the once-used nail box is not installed, a worker still can toggle the trigger to start the electric stapler, and the electric stapler is very easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide an electronic anastomat's safety mechanism, this safety mechanism can effectively prevent user's maloperation.

The utility model discloses a realize through following technical scheme: the utility model provides an insurance mechanism of electronic anastomat, electronic anastomat includes the casing, the trigger, the gear box, the trigger bar sleeve pipe and turn to the lock, the trigger passes through the hinge and is connected with the casing is articulated, the trigger bar sleeve pipe supports and turns to the lock, insurance mechanism includes push rod subassembly and bayonet lock, the draw-in groove with bayonet lock looks adaptation is seted up to the lower part of gear box, set up the first spout with bayonet lock looks adaptation on the trigger, set up the second spout with push rod subassembly looks adaptation on the gear box, when relieving insurance, the front end of push rod subassembly supports and turns to the lock, push rod subassembly drives the upper portion roll-off draw-in groove.

When the disposable nail box is not installed, the upper part of the bayonet lock is inserted into the bayonet groove of the gear box, and the main body part of the bayonet lock is positioned in the first sliding groove, so that a user cannot pull the trigger; when the disposable nail box is installed, the disposable nail box sequentially pushes the trigger rod sleeve, the steering lock and the push rod assembly, the push rod assembly drives the upper part of the clamping pin to slide out of the clamping groove, at the moment, a user can stir the trigger, and the safety mechanism can effectively prevent misoperation of the user.

According to the technical scheme, preferably, a return spring is arranged in the first sliding groove, the return spring pushes the bayonet lock upwards, and when the disposable nail box is not installed on the electric anastomat, the return spring can push the bayonet lock to move upwards.

According to the technical scheme, preferably, the push rod assembly comprises a cross rod and a limiting block fixedly connected with the cross rod, an inclined sliding strip portion is arranged on the limiting block, a sliding hole matched with the sliding strip portion is formed in the clamping pin, and the sliding strip portion is matched with the sliding hole, so that the push rod assembly can stably drive the clamping pin to slide up and down.

According to the above technical scheme, preferably, a locking portion is formed at a joint of the sliding strip portion and the limiting block, two sets of clamping portions of vertically symmetrical trapezoidal structures are arranged in the sliding hole, and the clamping portions are clamped in the locking portion, so that the clamping pins are stably locked.

According to the above aspect, preferably, the slope angle of the engagement portion is the same as the inclination angle of the slider portion.

According to the above technical scheme, preferably, the tail end of the sliding strip portion is provided with a limiting portion abutting against the clamping portion, and the limiting portion is used for preventing the sliding strip portion from disengaging from the clamping pin.

According to the technical scheme, preferably, at the beginning, the front end of the cross rod and the steering lock have a reserved gap, and the reserved gap can further prevent a user from accidentally releasing the safety mechanism.

The utility model has the advantages that: when the disposable nail box is not installed, the upper part of the bayonet lock is inserted into the bayonet groove of the gear box, and the main body part of the bayonet lock is positioned in the first sliding groove, so that a user cannot pull the trigger; when the disposable nail box is installed, the disposable nail box sequentially pushes the trigger rod sleeve, the steering lock and the push rod assembly, the push rod assembly drives the upper part of the clamping pin to slide out of the clamping groove, at the moment, a user can stir the trigger, and the safety mechanism can effectively prevent misoperation of the user.

Drawings

Fig. 1 shows a schematic structural view according to an embodiment of the present invention, when the upper part of the bayonet is inserted into the bayonet groove of the gear box;

FIG. 2 is a schematic view of the arrangement of the push rod assembly and the latch according to an embodiment of the present invention;

FIG. 3 shows another schematic structural view of an embodiment of the present invention, where the upper portion of the detent disengages from the detent of the gear box;

fig. 4 shows a schematic structural diagram of the part a in fig. 3.

In the figure: 1. a housing; 2. a trigger; 3. a gear case; 4. a firing bar sleeve; 5. a steering lock; 6. a push rod assembly; 7. a bayonet lock; 8. a card slot; 9. reserving a gap; 10. a return spring; 11. a disposable cartridge; 12. a cross bar; 13. a limiting block; 14. a sliding strip part; 15. a slide hole; 16. a locking portion; 17. a clamping part; 18. a limiting part.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in the figure, the utility model provides a safety mechanism of an electric anastomat, the existing electric anastomat comprises a shell 1, a trigger 2, a gear box 3, a trigger rod sleeve 4 and a steering lock 5, the trigger 2 is hinged with the shell 1 through a hinge shaft, the trigger rod sleeve 4 supports against the steering lock 5, the safety mechanism comprises a push rod component 6 and a bayonet 7, the lower part of the gear box 3 is provided with a clamping groove 8 matched with the bayonet 7, the trigger 2 is provided with a first sliding groove matched with the bayonet 7, the first sliding groove is internally provided with a reset spring 10, the reset spring 10 pushes the bayonet 7 upwards, when a disposable nail box 11 is not installed on the electric anastomat, the reset spring 10 can push the bayonet 7 to move upwards, the gear box 3 is provided with a second sliding groove (not shown in the figure) matched with the push rod component 6, when the safety is released, the disposable nail box pushes the steering lock towards the rear side through the trigger rod, the front end of the push rod assembly 6 abuts against the steering lock 5 at the moment, the push rod assembly 6 drives the upper sliding clamping groove 8 of the clamping pin 7, the push rod assembly 6 comprises a cross rod 12 and a limiting block 13 fixedly connected with the cross rod 12, an inclined sliding strip portion 14 is arranged on the limiting block 13, a sliding hole 15 matched with the sliding strip portion 14 is formed in the clamping pin 7, and the sliding strip portion 14 is matched with the sliding hole 15, so that the push rod assembly 6 can stably drive the clamping pin 7 to slide up and down.

The working process is as follows:

when the disposable magazine 11 is not yet installed, the upper part of the bayonet 7 is inserted into the bayonet 8 of the gear housing 3 and the main part of the bayonet 7 is located in the first runner, under the restriction of the bayonet 7, the user cannot pull the trigger 2; when the disposable nail box 11 is installed, the disposable nail box 11 sequentially pushes the trigger rod sleeve 4, the steering lock 5 and the push rod assembly 6, the push rod assembly 6 drives the upper part of the clamping pin 7 to slide out of the clamping groove 8, the trigger 2 can be pulled by a user at the moment, and the safety mechanism can effectively prevent misoperation of the user.

According to the above embodiment, preferably, a locking portion 16 is formed at a joint of the sliding strip portion 14 and the stopper 13, two sets of clamping portions 17 of a trapezoidal structure which are symmetrical up and down are arranged in the sliding hole 15, the clamping portions 17 are clamped in the locking portion 16, so as to realize stable locking of the bayonet 7, an inclined angle of the clamping portion 17 is the same as an inclined angle of the sliding strip portion 14, a stopper portion 18 which abuts against the clamping portion 17 is arranged at the tail end of the sliding strip portion 14, and the stopper portion 18 is used for preventing the sliding strip portion 14 from being separated from the bayonet 7.

Further, initially, the front end of the crossbar 12 has a predetermined clearance 9 with the steering lock 5, and the predetermined clearance 9 can further prevent the user from accidentally releasing the safety mechanism.

The utility model has the advantages that: when the disposable magazine 11 is not yet installed, the upper portion of the bayonet 7 is inserted into the bayonet 8 of the gear housing 3 and the main portion of the bayonet 7 is located in the first runner, at which time the user cannot pull the trigger 2; when the disposable nail box 11 is installed, the disposable nail box 11 sequentially pushes the trigger rod sleeve 4, the steering lock 5 and the push rod assembly 6, the push rod assembly 6 drives the upper part of the clamping pin 7 to slide out of the clamping groove 8, the trigger 2 can be pulled by a user at the moment, and the safety mechanism can effectively prevent misoperation of the user.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an insurance mechanism of electronic anastomat, electronic anastomat includes casing, trigger, gear box, trigger rod sleeve pipe and turns to the lock, and the trigger passes through the hinge and is connected with the casing is articulated, and the trigger rod sleeve pipe supports and turns to the lock, its characterized in that, insurance mechanism includes push rod subassembly and bayonet lock, the draw-in groove with bayonet lock looks adaptation is seted up to the lower part of gear box, set up the first spout with bayonet lock looks adaptation on the trigger, set up the second spout with push rod subassembly looks adaptation on the gear box, when relieving insurance, push rod subassembly's front end supports turn to the lock, push rod subassembly drives the upper portion roll-off draw-in groove of bayonet lock.

2. The safety mechanism of an electric anastomat according to claim 1, wherein a return spring is arranged in the first sliding groove, and the return spring pushes the clamping pin upwards.

3. The safety mechanism of an electric anastomat according to claim 2, wherein the push rod assembly comprises a cross rod and a limiting block fixedly connected with the cross rod, an inclined slide bar part is arranged on the limiting block, and a slide hole matched with the slide bar part is formed in the clamping pin.

4. The safety mechanism of the electric anastomat as claimed in claim 3, wherein the connecting part of the sliding strip part and the limiting block forms a locking part, and two sets of clamping parts with trapezoidal structures are arranged in the sliding hole and are symmetrical up and down.

5. The safety mechanism of an electric anastomat according to claim 4, wherein the angle of the inclined plane of the clamping portion is the same as the angle of the inclined plane of the sliding strip portion.

6. The safety mechanism of an electric anastomat as claimed in claim 5, wherein the tail end of the sliding strip portion is provided with a limiting portion abutting against the clamping portion.

7. The safety mechanism of an electric anastomat according to any one of claims 1 to 6, wherein at the beginning, the front end of the cross rod has a reserved clearance with the steering lock.