CN213047099U

CN213047099U - Anastomosis device of endoscope anastomat

Info

Publication number: CN213047099U
Application number: CN202020703516.3U
Authority: CN
Inventors: 韦加娜; 李毅; 王叶挺
Original assignee: Suzhou Taibao Biomedical Technology Co ltd
Current assignee: Suzhou Taibao Biomedical Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-04-27
Anticipated expiration: 2030-04-30

Abstract

The utility model relates to the technical field of medical instruments for surgical anastomosis, in particular to an anastomosis device of a cavity mirror anastomat, which comprises a nail abutting seat and a nail bin assembly; the nail abutting seat is of a stepped structure with a high middle part and two low sides; the nail bin assembly comprises a nail bin seat, nail pushing particles, anastomotic nails and a nail bin, wherein the nail pushing particles are matched with the anastomotic nails, and the heights of the anastomotic nails are different; the surface of the nail bin is flat. The utility model solves the problems that the tissues with different positions and different thicknesses are anastomosed and stopped bleeding when the instrument is anastomosed.

Description

Anastomosis device of endoscope anastomat

Technical Field

The utility model relates to a surgical is anastomosed and is used medical instrument technical field, concretely relates to identical device of chamber mirror anastomat.

Background

The development of minimally invasive surgical therapies has brought about the rapid development of related instruments, and has also enabled endoscopic procedures to be widely performed. Minimally invasive surgical treatment is increasingly used in general surgery, thoracic surgery, urology surgery, gynecology, pediatrics and other operations. Staplers, in particular endoscopic staplers, have also become brisk with the development of minimally invasive surgery.

An endoscope anastomat is a medical instrument which is directly inserted into the body cavity of a patient under an endoscope to operate so as to cut and inosculate tissues at one time, and is mainly applied to operations such as excision of visceral organs or tissues, reconstruction of digestive tracts and the like.

In order to improve the effect of the device in anastomosing tissue, such as to improve the integrity of the anastomosis, to improve the haemostasis and post-operative recovery of the tissue, the technology of the stapler is constantly being developed and evolved, in particular in the design of endoscopic staplers, to highlight even more the technological advances of the anastomosis. The prior art currently achieves tissue anastomosis mainly by the following means:

1. adopting anastomotic nails with the same height, and leveling the surface of the nail bin and the surface of the nail abutting seat to ensure that the forming heights of the anastomotic nails are consistent;

2. adopting anastomotic nails with the same height, and enabling the forming height of the anastomotic nails to be consistent by the surface of the nail bin and the surface of the nail abutting seat of the ladder;

3. adopting anastomotic nails with the same height, the stepped nail bin surface and the flat nail abutting seat surface to ensure that the forming heights of the anastomotic nails are inconsistent;

4. the anastomosis nails with different heights are adopted, and the heights of the formed anastomosis nails are different due to the stepped nail bin surface and the flat nail abutting seat surface.

However, these solutions still have drawbacks, analyzed as follows:

1. the flat surface of the nail bin and the surface of the nail abutting seat enable the tissue pressing height to be consistent, the fact that the tissue is pressed outwards is not met, the tension resisting force on the anastomosis nails in the outermost row is too large, and the tissue is easy to tear.

2. The surface of the stepped nail bin and the surface of the nail abutting seat correspond to each other, so that the tissue pressing height is still consistent, the fact that the tissue is pressed outwards after being pressed is not met, the tensile force applied to the anastomosis nails at the outermost row is too large, and the tissue is easy to tear. The step portion cuts the tissue, so that the tissue is easily damaged.

3. The smooth nail bin surface of ladder supports the identical high anastomotic nail of nail seat cooperation, has improved the effect that the tissue squeezes, but interior row anastomotic nail shaping is excessive pressure, influences the blood supply, and outer row anastomotic nail shaping is undervoltage, easily leads to the insecure of coincide, appears oozing.

4. The smooth nail abutting seat on the surface of the stepped nail bin is matched with the anastomotic nails with different heights, so that the tissue squeezing effect and the forming effect of the anastomotic nails are improved, the inner row forming is the lowest, the outer row forming is the highest, and the anastomotic nails can be completely formed. However, the installation of the anastomotic nails is inconvenient, and equipment cannot focus when the visual equipment is used for inspecting the installation condition of the anastomotic nails in the nail bin.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the above-mentioned prior art, provide an identical device of chamber mirror anastomat that has good effect to the hemostasis of coincideing of the tissue of different positions, different thickness.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an anastomosis device of an endoscope anastomat comprises a nail abutting seat and a nail bin assembly; the nail abutting seat is of a stepped structure with a high middle part and two low sides; the nail bin assembly comprises a nail bin seat, nail pushing particles, anastomotic nails and a nail bin, wherein the nail pushing particles are matched with the anastomotic nails, and the heights of the anastomotic nails are different; the surface of the nail bin is flat.

When the anastomat clamps and squeezes the cut tissue, the nail pushing particles push out the anastomotic nails in the nail bin to form the formed anastomotic nails with different heights, and the tissue anastomosis operation is completed.

Furthermore, the ladder-shaped nail abutting seat is provided with three rows of nail grooves, namely an inner row of nail grooves, a middle row of nail grooves and an outer row of nail grooves, wherein the left side and the right side of the nail abutting seat are respectively provided with the inner row of nail grooves, the middle row of nail grooves and the outer row of nail grooves, and the nail grooves are matched with. Namely, the left side and the right side of the nail bin are provided with an inner row of anastomotic nails, a middle row of anastomotic nails and an outer row of anastomotic nails.

Furthermore, the height distribution of the anastomosis nails is low in the middle and high at two ends.

Preferably, the nail abutting seats are arranged in a mode that the inner rows are high, the middle rows are low and the outer rows are lower.

Preferably, the nail abutting seats are arranged in a manner that the heights of the inner row and the middle row are consistent, and the outer row is lower.

Preferably, the nail pushing seats are arranged in an inner row, the middle row and the outer row are consistent in height and lower than the inner row.

Furthermore, the surface of the nail bin is provided with an anti-skid device.

Preferably, the anti-skid device is an anti-skid bump. The anti-skid protrusions are arranged on the outer side of the surface of the flat nail bin.

Preferably, the surface of the nail abutting seat is provided with a recess matched with the anti-skid bulge.

Has the advantages that:

1. the utility model provides an anastomosis device of an endoscope anastomat, which solves the problems encountered by the anastomosis hemostasis of tissues with different positions and thicknesses when the instruments are used for anastomosing the tissues; not only can strengthen the performance of the product, but also can better realize the anastomosis hemostasis of tissues, and has positive help for subsequent recovery.

2. The utility model discloses a to support the nail seat design for the echelonment, be similar to the structural design of a "protruding" font, ensure that the nail seat increases middle thickness under the condition that does not reduce original thickness, can strengthen the rigidity of supporting the nail seat betterly.

3. The anti-skidding convex point design is added on the surface of the movable and flat nail bin, and the nail abutting seat is designed with the matched concave part, so that the fixation of tissues is realized, and the slippage is prevented; the arrangement has two effects:

A. the tissue can be flatly paved on the surface of the nail bin and uniformly penetrated by the anastomotic nails, and the possibility of deflection when the anastomotic nails are pushed out and the influence on blood supply after the tissue anastomosis are reduced.

B. The smooth surface of the nail bin can be convenient for focusing and photographing in visual detection, loading of anastomosis nails is convenient, the quality control level is further improved, and the safety of instruments is improved.

4. The anastomotic staples with different heights are different in forming height, so that the anastomotic staples are suitable for tissues with different squeezing thicknesses, and the quality of blood supply and the release of tissue tension resistance are further ensured on the basis of a good hemostatic effect.

Drawings

FIG. 1 is a schematic structural view of an endoscopic stapler;

fig. 2-4 are schematic cross-sectional structural views of three design schemes of the middle nail-supporting seat and the corresponding anastomosis nail of the present invention;

FIG. 5 is a schematic structural view of the anti-skid device of the present invention;

FIG. 6 is an enlarged view of part A of FIG. 5;

FIG. 7 is an enlarged view of a portion B of FIG. 5;

description of reference numerals: 1. the assembly comprises an assembly rod, 2, joints, 3, a cutting knife, 4, a shaft, 5, an anastomosis device, 6, a nail abutting seat, 61, a nail groove, 7, a nail bin assembly, 71, a nail bin, 72, a nail pushing particle, 73, a nail bin seat, 74, an anastomosis nail, 8, a tissue, 9, a bulge, 10 and a recess.

Detailed Description

The present invention will be described in detail with reference to the following embodiments.

Example 1:

as shown in fig. 1 and 2, the endoscopic stapler comprises an assembly rod 1, a joint 2, a cutting knife 3, a shaft 4 and a stapling device 5, wherein the stapling device 5 comprises a nail abutting seat 6 and a nail bin assembly 7; the nail abutting seat 6 is of a ladder-shaped structure with a high middle part and two low sides; the nail cartridge assembly 7 comprises a nail cartridge 71, a nail pushing grain 72, a nail cartridge seat 73 and staples 74, wherein the nail pushing grain 72 is matched with the staples 74, the heights of the staples 74 are different, and the surface of the nail cartridge 71 is flat.

Preferably, the left side and the right side of the staple cartridge 71 are distributed with three rows of inner, middle and outer staples 74 which are arranged at equal intervals, and the height distribution of the staples 74 is arranged in a manner that the inner row is low, and the middle row and the outer row are gradually increased. The nail pushing seat 6 is provided with a nail groove 61 matched with the anastomotic nail 74; the staple grooves 61 adapted to the staples 74 are arranged in a gradually increasing step-like structure from outside to inside, i.e., the inner row is high, the middle row is low, and the outer row is lower.

Under the driving of the cutting knife 3, the nail bin seat 73 rotates around the shaft 4 relative to the nail abutting seat 6, so that the closing of the anastomosis device 5 and the clamping and squeezing of tissues to be cut are realized. The cutting knife 3 advances to drive the nail pushing particles 72 to push out the staples 74 in the staple chamber 71, so as to form formed staples 74 with different heights, and finish the tissue anastomosis operation.

Example 2:

as shown in fig. 1 and 3, the endoscopic stapler comprises an assembly rod 1, a joint 2, a cutting knife 3, a shaft 4 and a stapling device 5, wherein the stapling device 5 comprises a nail abutting seat 6 and a nail bin assembly 7; the nail abutting seat 6 is of a ladder-shaped structure with a high middle part and two low sides. The nail cartridge assembly 7 comprises a nail cartridge 71, a nail pushing particle 72, a nail cartridge seat 73 and a staple 74; the surface of the nail bin 71 is flat; the height of the staples 74 is not consistent; staple pusher 72 is mated with staple 74.

Preferably, the left side and the right side of the staple cartridge 71 are distributed with three rows of inner, middle and outer staple nails 74 which are arranged at equal intervals, and the staple nails 74 are arranged in a manner that the heights of the inner row and the middle row are consistent and the outer row is increased. The nail pushing seat 6 is provided with a nail groove 61 matched with the anastomotic nail 74; the nail pushing seat 6 is in a convex structure, namely, the inner row is as high as the middle row of the nail grooves 61, and the outer row of the nail grooves 61 is reduced in height.

Preferably, the surface of the nail bin 71 shown in fig. 5-7 is provided with anti-skid protrusions 9 on the outer side. The surface of the nail abutting seat 6 is provided with a recess 10 matched with the antiskid bulge 9.

Example 3:

as shown in fig. 1 and 4, the endoscopic stapler comprises an assembly rod 1, a joint 2, a cutting knife 3, a shaft 4 and a stapling device 5, wherein the stapling device 5 comprises a nail abutting seat 6 and a nail bin assembly 7; the nail abutting seat 6 is of a ladder-shaped structure with a high middle part and two low sides. The nail cartridge assembly 7 comprises a nail cartridge 71, a nail pushing particle 72, a nail cartridge seat 73 and a staple 74; the surface of the nail bin 71 is flat; the height of the staples 74 is not consistent; staple pusher 72 is mated with staple 74.

Preferably, the left side and the right side of the staple cartridge 71 are distributed with three rows of inner, middle and outer staples 74 which are arranged at equal intervals, and the staples 74 are arranged in a manner that the heights of the middle row are consistent with those of the outer row and are higher than those of the inner row. The nail pushing seat 6 is provided with a nail groove 61 matched with the anastomotic nail 74; the nail abutting seat 6 is in a convex structure, namely, the outer row is as high as the middle row nail groove 61, and the height of the inner row nail groove 61 is increased.

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. An anastomosis device of an endoscope anastomat comprises a nail abutting seat and a nail bin assembly; the nail pushing seat is characterized in that the nail pushing seat is of a stepped structure with a high middle part and two low sides; the nail bin assembly comprises a nail bin seat, nail pushing particles, anastomotic nails and a nail bin, wherein the nail pushing particles are matched with the anastomotic nails, and the heights of the anastomotic nails are different; the surface of the nail bin is flat.

2. The anastomosis device of an endoscopic stapler as claimed in claim 1, wherein said staple abutting seat is provided with three rows of staple grooves, an inner row, a middle row and an outer row, respectively, on left and right sides, said staple grooves being adapted to staples.

3. The anastomosis device of an endoscopic stapler according to claim 2, wherein the staple height distribution is set to be low in the middle and high at both ends.

4. The anastomosis device of an endoscopic stapler according to claim 2, wherein said staple-supporting seats are arranged with a high inner row, a low middle row and a lower outer row.

5. The anastomosis device of an endoscopic stapler according to claim 2, wherein the staple abutting seats are arranged in an inner row and a middle row with the same height and a lower outer row.

6. The anastomosis device of an endoscopic stapler according to claim 2, wherein said staple abutment is arranged with a height of inner row, a height of middle row and outer row being the same, lower than that of inner row.

7. The anastomosis device of an endoscopic stapler according to claim 1, wherein said cartridge surface is provided with anti-slip means.

8. The anastomosis device of an endoscopic stapler according to claim 7, wherein said anti-slip means are anti-slip protrusions.

9. The anastomosis device of an endoscopic stapler according to claim 8, wherein said nail seat surface is provided with a recess adapted to said anti-slip protrusion.