CN213665483U

CN213665483U - Safety device of linear cutting anastomat

Info

Publication number: CN213665483U
Application number: CN202022045878.0U
Authority: CN
Inventors: 孙克展; 李毅; 王红波; 任静
Original assignee: Suzhou Taibao Biomedical Technology Co ltd
Current assignee: Suzhou Taibao Biomedical Technology Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-07-13
Anticipated expiration: 2030-09-17

Abstract

The utility model relates to a safeties of linear cutting anastomat, including spacing groove, stopper and reset spring, the stopper comprises locating part and slider, the spacing groove comprises the back spacing groove that sets up at last front limit groove of forceps holder and setting forceps holder under by setting up, the back-and-forth movement can be done at the spacing inslot to the locating part under the drive of slider.

Description

Safety device of linear cutting anastomat

Technical Field

The utility model belongs to the technical field of medical instrument, specifically belong to a safety device of linear cutting anastomat.

Background

Linear cutting staplers are widely used in surgical procedures for suturing wounds, suturing internal tissues and cutting, and removing excess tissue while suturing wounds. The linear cutting anastomat generally comprises an upper clamp, a lower clamp, a closing handle for closing the upper clamp and the lower clamp, a nail anvil and a nail bin which are arranged at the far ends of the upper clamp and the lower clamp relatively, a striking plate which is arranged in the nail bin and can move relatively to the nail bin simultaneously, a push knife rod of which the far end is provided with a cutting knife, and a push button for driving the striking plate and the push knife rod to move. The nail-cutting device is characterized in that suturing nails are arranged in the nail bin, the firing plates sequentially push the nail-pushing plates and push the suturing nails to the nail anvil, and the cutter cuts off tissues between the nail bin and the nail anvil.

In the prior art, a nail bin of a linear cutting anastomat can be replaced and used for multiple times. In clinical use, tissues are often sutured and cut for a plurality of times, so that the nail bin needs to be replaced for a plurality of times during the operation, namely, after a doctor finishes a suturing and cutting action, the push button needs to be completely reset, the closing handle is opened, the upper clamp and the lower clamp are separated, the instrument is withdrawn from the operation part, and then the nail bin is replaced, so that the linear cutting anastomat can be used for performing the next suturing and cutting operation.

However, some careless doctors or inexperienced doctors may open the closing handle when the push button is not completely reset, or inadvertently touch the push button in the process, so that the push button moves forward, and in this case, the striking plate and the push knife bar are not completely reset, and when the nail magazine is replaced in this state, the nail at the starting end of the nail magazine is fired early, so that serious accidents such as nail missing at the anastomotic opening or poor formation of part of nails in the operation, which causes major bleeding, are caused. In order to prevent such accidents, a safety mechanism for preventing the instrument from being opened under the condition that the push button is not completely reset needs to be additionally arranged in the linear cutting anastomat so as to avoid medical accidents caused by misoperation of a doctor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's defect, provide a safeties of straight line cutting anastomat, add safety mechanism in the straight line cutting anastomat to avoid the medical accident that produces because doctor's maloperation.

In order to realize the purpose, the utility model provides a technical scheme does: the safety device of the linear cutting anastomat comprises a limiting groove, a limiting block and a reset spring, wherein the limiting block is composed of a limiting part and a sliding part, the limiting groove is composed of a front limiting groove arranged on an upper jaw and a rear limiting groove arranged on a lower jaw, and the limiting part can move back and forth in the limiting groove under the driving of the sliding part.

Preferably, the limiting member includes a front end, a middle section, and a rear end, the front end faces the front limiting groove of the upper jaw, the middle section is fixedly connected to the sliding member, the rear end faces the rear limiting groove of the lower jaw and is fixed to the return spring, and the limiting member, when not driven by the sliding member, will be moved forward by the elastic force of the return spring so that the front end enters the front limiting groove of the upper jaw.

Preferably, the sliding member is fixedly connected with a push button.

The utility model has the advantages that: (1) when the limiting block is only acted by a return spring, the limiting part partially enters the front limiting groove of the upper jaw, so that the upper jaw and the lower jaw are fixed together, the upper jaw and the lower jaw cannot be separated, a doctor is reminded that the instrument is in a limiting state, the limiting part is pushed by the sliding part, the limiting part is completely separated from the front limiting groove and is in a release state, the upper jaw and the lower jaw can be separated from each other at the moment, and the instrument can be opened. (2) The front end of the limiting block enters/departs from the front limiting groove of the upper jaw through the left/right sliding piece, so that the upper jaw and the lower jaw enter a fixing/unlocking state. (3) The sliding part is fixedly connected with a push button, the limiting block can be driven to move by pushing the push button, and a doctor needs to drive the limiting block to move by pushing the push button in the using process. When the push button is not pushed, the limiting block enables the instrument to be in a limiting state only under the action force of the reset spring, the upper forceps clip and the lower forceps clip are fixed together and cannot be opened, and the safety mechanism of the instrument is prevented from being opened under the condition that the push button is not completely reset, so that medical accidents caused by misoperation of doctors are avoided. Only when the push button is pushed to the bottom to enable the limiting block to be completely separated from the front limiting groove of the upper jaw, the upper jaw and the lower jaw can be opened.

Drawings

Fig. 1 is a schematic view of a safety device of a linear cutting stapler according to the present invention;

fig. 2 is a schematic diagram of the sliding of the limiting block of the safety device of the linear cutting stapler according to the present invention;

fig. 3 is a schematic perspective view of a limiting block of a safety device of the linear cutting stapler of the present invention;

fig. 4 is a partial perspective view of a safety device of a linear cutting stapler according to the present invention;

fig. 5 is a partial perspective view of a safety device of a linear cutting stapler according to the present invention;

description of reference numerals:

11. a front limiting groove; 12. a rear limiting groove; 2. a limiting block; 21. a limiting member; 211. a front end; 212. a middle section; 213. a back end; 22. a slider; 3. a return spring; 4. an upper jaw; 5. a lower jaw; 6. and a push button.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1:

as shown in fig. 1: a safety device of a linear cutting anastomat comprises a limiting groove, a limiting block 2 and a return spring 3, wherein the limiting block 2 consists of a limiting piece 21 and a sliding piece 22, the limiting groove consists of a front limiting groove 11 arranged on an upper jaw 4 and a rear limiting groove 12 arranged on a lower jaw 5, and the limiting piece 21 can move back and forth in the limiting groove 11 under the driving of the sliding piece 22; the limiting member 21 includes a front end 211, a middle section 212, and a rear end 213, the front end 211 faces the front limiting groove 11 of the upper jaw 4, the middle section 212 is fixedly connected to the sliding member 22, the rear end 213 faces the rear limiting groove 12 of the lower jaw 4 and is fixed to the return spring 3, and the limiting member 21, when not driven by the sliding member 22, moves forward under the elastic force of the return spring 3 to make the front end enter the front limiting groove 11 of the upper jaw 4; the sliding member 22 is fixedly connected with a push button 6.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. The safety device of the linear cutting anastomat is characterized by comprising a limiting groove, a limiting block and a reset spring, wherein the limiting block is composed of a limiting part and a sliding part, the limiting groove is composed of a front limiting groove arranged on an upper jaw and a rear limiting groove arranged on a lower jaw, and the limiting part can move back and forth in the limiting groove under the driving of the sliding part.

2. The safety device of a linear cutting stapler according to claim 1, wherein the limiting member includes a front end, a middle section and a rear end, the front end faces the front limiting groove of the upper jaw, the middle section is fixedly connected to the sliding member, the rear end faces the rear limiting groove of the lower jaw and is fixed to the return spring, and the limiting member, when not driven by the sliding member, moves forward under the elastic force of the return spring to enable the front end to enter the front limiting groove of the upper jaw.

3. The safety device of a linear cutting stapler according to claim 1, wherein the slider is fixedly connected with a push button.