CN212755770U

CN212755770U - Anastomat with auxiliary tissue positioning device

Info

Publication number: CN212755770U
Application number: CN201820434973.XU
Authority: CN
Inventors: 王东; 刘佳
Original assignee: Engine Medical Equipment Manufacturing Shanghai Corp
Current assignee: Engine Medical Equipment Manufacturing Shanghai Corp
Priority date: 2018-03-29
Filing date: 2018-03-29
Publication date: 2021-03-23
Anticipated expiration: 2028-03-29

Abstract

The utility model provides an anastomat with supplementary positioner that organizes, above-mentioned supplementary positioner that organizes includes the cutting knife, is equipped with cutting edge and protruding arm on the above-mentioned cutting knife, and the contained angle of above-mentioned cutting edge and above-mentioned protruding arm is the acute angle. Through the cutting knife and the cutting edge structure of specific shape, a anastomat with auxiliary tissue positioning device is provided, the cutting knife is enabled to generate positive pressure to the tissue all the time in the operation process, slippage is avoided, therefore, suturing nails can not be deviated by tissue strips needing to be sutured, and therefore the suturing nail forming effect is good.

Description

Anastomat with auxiliary tissue positioning device

Technical Field

The utility model relates to the field of medical equipment, in particular to anastomat with auxiliary tissue positioning device.

Background

The principle of the anastomat is that in a surgical operation, a plurality of rows of anastomotic nails are nailed on tissues needing to be sutured through an apparatus with a structure similar to that of a stapler to replace original suture lines and suture needles for suturing, and the anastomat has the advantages of short suturing time, uniform suturing, good healing effect and the like.

Among the prior art, in the staple forming technique, especially, in the sewing and cutting process of chamber mirror stitching instrument, owing to sew up and the cutting goes on simultaneously, the cutting blade can be with organizing advancing to lead to stitching the nail by the skew of the tissue area that needs to sew up, and final shaping effect is unsatisfactory, current cutting knife because the cutting edge is forward when cutting the tissue, inevitable promotion tissue moves forward a distance, leads to the anastomotic nail shaping not good. Therefore, a stapler with an auxiliary tissue positioning device is yet to be proposed.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anastomat with supplementary tissue positioner to it is not good to solve the anastomotic nail shaping among the prior art at least, sews up the technical problem that the nail is by the skew of the tissue area that needs to sew up.

The utility model provides an anastomat with supplementary positioner that organizes, above-mentioned supplementary positioner that organizes includes the cutting knife, is equipped with cutting edge and protruding arm on the above-mentioned cutting knife, and the contained angle of above-mentioned cutting edge and above-mentioned protruding arm is the acute angle.

Optionally, an acute angle between the blade and the protruding arm is not greater than 60 degrees.

Optionally, the protruding arm includes an upper protruding arm and a lower protruding arm, and an included angle between the blade and the upper protruding arm is an acute angle or an included angle between the blade and the lower protruding arm is an acute angle.

Optionally, an acute angle between the blade and the upper protruding arm is not more than 60 degrees or an acute angle between the blade and the lower protruding arm is not more than 60 degrees.

Optionally, the auxiliary tissue positioning device further comprises a cutter pin and a cutter auxiliary piece, and the cutter auxiliary piece are fixed as a cutter assembly through the cutter pin.

Optionally, the stapler further comprises a nail anvil, and the cutter assembly is connected with the nail anvil in a sliding manner through the cutter pin.

Optionally, the cutting knife assembly comprises a plurality of the cutting knife auxiliary pieces, and the plurality of the cutting knife auxiliary pieces are evenly distributed on two sides of the cutting knife.

Optionally, two or four or six of the auxiliary cutting blades are uniformly distributed on both sides of the cutting blade.

Optionally, the auxiliary blade of the cutting knife has an i-beam structure.

Optionally, the anastomat is a tubular anastomat, a linear cutting anastomat, an endoscopic cutting anastomat, an arc anastomat, a linear anastomat, a circumcision anastomat or a skin anastomat.

The utility model discloses technical scheme is not enough to the above-mentioned among the prior art, through the cutting knife and the cutting edge structure of specific shape, has provided an anastomat with supplementary tissue positioner, makes the cutting knife produce forward pressure to the tissue all the time at the operation in-process, avoids sliding to make to sew up the nail and can not be by the skew of the tissue area that needs sew up, thereby make the nail shaping effect better.

Drawings

FIG. 1 is an alternative staple cartridge assembly including a stapler with an auxiliary tissue positioning device provided in accordance with example 1 of the present invention;

FIG. 2 is a partial view of an alternative staple cartridge assembly including a stapler with an auxiliary tissue positioning device, according to example 1 of the present invention;

fig. 3 is a cutting blade assembly of an alternative auxiliary tissue positioning device provided in embodiment 1 of the present invention;

fig. 4 is a cutting knife of an alternative auxiliary tissue positioning device provided in embodiment 1 of the present invention;

FIG. 5 is an enlarged schematic view of the circled portion of FIG. 4;

fig. 6 is a schematic view of another variation of fig. 5.

The following detailed description is provided for further illustration and not for the purpose of limiting the invention, and the following examples are merely one preferred embodiment of the invention.

Detailed Description

Example 1:

the embodiment of the utility model provides an anastomat with supplementary positioner that organizes, as shown in fig. 1, fig. 2 and fig. 3, above-mentioned supplementary positioner that organizes includes cutting knife 1, cutting knife auxiliary blade 3 and cutting knife round pin 15, and above-mentioned cutting knife 1 is fixed for cutting knife subassembly 10 through above-mentioned cutting knife round pin 15 with above-mentioned cutting knife auxiliary blade 3. The anastomat further comprises a nail anvil 2, and the cutter assembly 10 is connected with the nail anvil 2 in a sliding mode through the cutter pin 15.

Fig. 4 shows the cutting blade 1, fig. 5 is a partial enlarged view of fig. 4, fig. 6 shows another variation of fig. 5, and fig. 5 and 6 show that the cutting blade 1 is provided with a blade 11 and a projecting arm, the angle between the blade 11 and the projecting arm is acute, the projecting arm comprises an upper projecting arm 13 and a lower projecting arm 14, and the angle 12 between the blade 11 and the upper projecting arm 13 is acute or the angle 16 between the blade 11 and the lower projecting arm 14 is acute.

As shown in fig. 2, the pressing direction of the blade 11 to the tissue 4 is toward the anvil 2, the cutter assembly 10 and the anvil 2 assist the positioning of the tissue 4, and if the direction of the blade 11 is as shown in fig. 6, the pressing direction of the blade 11 to the tissue 4 is toward the anvil 2, and the cutter assembly 10 and the magazine 5 as shown in fig. 1 assist the positioning of the tissue 4.

The tissue positioning aid is most effective when the acute angle 12 between the blade 11 and the upper projecting arm 13 is 60 degrees or less or the acute angle 16 between the blade 11 and the lower projecting arm 14 is 60 degrees or less.

The cutter assembly 10 includes a plurality of the cutter auxiliary pieces 3, the cutter auxiliary pieces 3 are uniformly distributed on both sides of the cutter 1, as shown in fig. 3, two or four or six of the auxiliary cutting blades 3 are uniformly distributed on both sides of the cutting blade 1, the auxiliary blade 3 of the cutting knife has an I-shaped beam structure, and is used for closing the anvil 2 and the magazine 5, and an acute angle structure between the cutting edge 11 of the cutting knife 1 and the protruding arm is added, so that the acute angle structure can enable the cutting knife assembly 10 to apply upward or downward component force to the tissue 4 in the forward moving and cutting process, and the component force is helpful for pressing and fixing the tissue 4 on the anvil 2 or the magazine 5, thereby reducing the movement of the tissue 4 on the anvil 2 or the magazine 5. Thus, the knife assembly 10, together with the anvil 2 and/or the magazine 5, better assists in positioning the tissue as the knife assembly 10 cuts the tissue.

The anastomat is a tubular anastomat, a linear cutting anastomat, an endoscopic cutting anastomat, an arc anastomat, a linear anastomat, a circumcision anastomat or a skin anastomat.

Claims

1. A stapler with an auxiliary tissue positioning device, characterized in that: the auxiliary tissue positioning device comprises a cutting knife (1), wherein a cutting edge (11) and a protruding arm are arranged on the cutting knife (1), an included angle between the cutting edge (11) and the protruding arm is an acute angle, and the included angle between the cutting edge (11) and the protruding arm is smaller than or equal to 60 degrees.

2. The stapler according to claim 1, wherein: protruding arm includes protruding arm (13) and protruding arm (14) down, cutting edge (11) with the contained angle of going up protruding arm (13) is the acute angle or cutting edge (11) with the contained angle of protruding arm (14) is the acute angle down.

3. The stapler according to claim 2, wherein: the acute angle (12) between the cutting edge (11) and the upper protruding arm (13) is less than or equal to 60 degrees or the acute angle (16) between the cutting edge (11) and the lower protruding arm (14) is less than or equal to 60 degrees.

4. The stapler according to claim 1, wherein: the auxiliary tissue positioning device further comprises a cutter pin (15) and a cutter auxiliary piece (3), and the cutter (1) and the cutter auxiliary piece (3) are fixed into a cutter assembly (10) through the cutter pin (15).

5. The stapler according to claim 4, wherein: the anastomat further comprises a nail anvil (2), and the cutting knife assembly (10) is connected with the nail anvil (2) in a sliding mode through the cutting knife pin (15).

6. The stapler according to claim 4, wherein: the cutting knife assembly (10) comprises a plurality of cutting knife auxiliary pieces (3), and the cutting knife auxiliary pieces (3) are uniformly distributed on two sides of the cutting knife (1).

7. The stapler according to claim 6, wherein: two or four or six auxiliary cutting knife pieces (3) are uniformly distributed on two sides of the cutting knife (1).

8. The stapler according to claim 7, wherein: the auxiliary blade (3) of the cutting knife is of an I-shaped beam structure.

9. The stapler according to any one of claims 1 to 8, wherein: the anastomat is a tubular anastomat, a linear cutting anastomat, an endoscopic cutting anastomat, an arc anastomat, a linear anastomat, a circumcision anastomat or a skin anastomat.