CN219331774U - Wave-shaped cutting anastomosis component of tubular anastomat - Google Patents

Abstract

The utility model discloses a wave-shaped cutting anastomosis component of a tubular anastomat, which relates to the field of medical appliances and comprises a tubular anastomat main body, wherein the tubular anastomat main body mainly comprises a fixed handle, an adjusting nut, a safety bolt, a movable handle, a bent pipe body and an anastomosis component, the anastomosis component comprises a nail anvil block and a nail bin component, a puncture connecting shaft, a cutter, a nail pusher and a nail bin end cover are sequentially arranged at the end part of the nail bin component from inside to outside, and the end surface of the nail bin end cover is arranged in a wave shape along the circumferential direction of the nail bin end cover to form a wave-shaped end surface; the nail pushing device is arranged in the nail bin end cover, the nail pushing device is arranged in a wave shape along the circumferential direction of the nail bin assembly, a nail pushing sheet of the nail pushing device is perpendicular to a wave crest or a wave trough of the wave-shaped end face of the cover, the nail pushing sheet corresponds to a nail hole formed in the nail bin end cover, the wave-shaped cutting anastomosis assembly of the tubular anastomat enlarges the perimeter of the anastomosis opening, and the ductility of the anastomosis opening is increased.

Description

Wave-shaped cutting anastomosis component of tubular anastomat

Technical Field

The utility model belongs to the field of medical appliances, and particularly relates to a wave-shaped cutting anastomosis component of a tubular anastomat.

Background

The tubular anastomat is suitable for end-to-end, end-to-side and side-to-side anastomosis of middle esophagus, stomach, duodenum, small intestine, colon, rectum and the like. Is particularly suitable for the lower end anastomosis of colorectal after the excision of esophagus, stomach anastomosis and middle rectal cancer which are exposed and difficult to operate.

The tubular anastomat is to drive two rows of mutually staggered anastomat nails in circular arrangement on the intestinal canal and cut off the tissue at the inner side by a cutting knife, and the anastomat can be used for conveniently anastomosing the intestinal canal. During operation, the ejector pin sheet pushes the anastomat out of the staple bin, the anastomat is formed into a B shape under the action of the staple anvil guide groove, and then the cutter cuts off the tissue after the stapling, so that the anastomosis of the tissue is completed.

The anvil and the staple cartridge of the conventional anastomat are designed in a plane, as shown in fig. 7, a circle of inelastic connecting scars is formed on the inner wall of the intestinal canal after anastomosis, the perimeter of the anastomotic stoma is limited, the ductility is not very good, the stricture of the intestinal canal is easily caused, the stricture is not smooth and even the blockage is caused, and inconvenience is brought to a patient after operation.

Therefore, we propose a wave-shaped cutting anastomosis assembly of a tubular anastomat to solve the above-mentioned problems.

Disclosure of Invention

Aiming at the problems that the anvil and the nail bin of the anastomat are both planar designs, a circle of inelastic connecting scars are formed on the inner wall of an intestinal canal after anastomosis, the perimeter of an anastomotic orifice is limited, the extensibility is not very good, the stricture of the intestinal canal is easily caused, the stricture is caused, even the blockage is caused, and inconvenience is brought to a patient after operation, the utility model provides the wavy cutting anastomat assembly of the tubular anastomat.

The utility model solves the technical problems by adopting the scheme that: the wave-shaped cutting anastomosis component of the tubular anastomat comprises a tubular anastomat main body, wherein the tubular anastomat main body mainly comprises a fixed handle, an adjusting nut, a safety bolt, a movable handle, an elbow body and an anastomosis component, the anastomosis component comprises a nail anvil block and a nail bin component, and the end part of the nail bin component is sequentially provided with a puncture connecting shaft, a cutter, a nail pusher and a nail bin end cover from inside to outside.

The end face of the nail bin end cover is arranged in a wave shape along the circumferential direction of the nail bin end cover to form a wave-shaped end face; the nail pushing device is arranged in the nail bin end cover, the nail pushing device is arranged in a wave shape along the circumferential direction of the nail bin assembly, a nail pushing sheet of the nail pushing device is perpendicular to a wave crest or a wave trough of the wave-shaped end face of the cover, and the nail pushing sheet corresponds to a nail hole formed in the nail bin end cover.

The tangent plane of cutter is the wave-like setting along the circumferencial direction of cutter, forms wave-like tangent plane.

The plastic gasket is arranged in the nail anvil, the nail anvil is provided with the nail anvil cover cap, the abutting end of the nail anvil is arranged in a wave-shaped mode along the circumferential direction of the nail anvil to form a wave-shaped abutting surface, the wave-shaped abutting surface is matched with the wave-shaped end face, the wave-shaped abutting surface is provided with a plurality of nail grooves in a surrounding mode, and the nail grooves are matched with corresponding nail pushing sheets.

The axis of the nail anvil block is provided with a clamp spring connector which is matched with the puncture connecting shaft, and the clamp spring connector is provided with a clamp spring for clamping the puncture connecting shaft.

As a preferable technical scheme of the utility model, the inner hole at the end part of the snap spring connector is a square hole.

As a preferable technical scheme of the utility model, the cross section of the end part of the puncture connecting shaft is rectangular.

As a preferable technical scheme of the utility model, the number of the snap spring sheets is two, and the two snap spring sheets are respectively arranged at the top and the bottom of the snap spring connector.

As a preferable technical scheme of the utility model, the distance between the wave crest and the wave trough is 3-5mm.

Compared with the prior art, the utility model has the beneficial effects that:

1. the wave-shaped cutting anastomosis component of the tubular anastomat expands the perimeter of an anastomosis opening and increases the ductility of the anastomosis opening.

2. The wave-shaped cutting anastomosis component of the tubular anastomat has the advantages that the anastomosis curve is not on the same plane, and the occurrence rate of scar stenosis at the later stage of an anastomosis opening is reduced.

3. According to the wave-shaped cutting anastomosis component of the tubular anastomat, the end part of the clamp spring connector is a square tube, the end part of the puncture connecting shaft is a square cone, the butt joint of the nail bin end cover and the nail drill seat is facilitated, the rotary damage to the intestinal wall in the anastomosis process is reduced, and the operation difficulty is reduced.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is an exploded front view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the end cap of the cartridge of the present utility model;

FIG. 4 is a schematic perspective view of the anvil and anvil cap of the present utility model;

FIG. 5 is a schematic perspective view of a cutter according to the present utility model;

FIG. 6 is a schematic view of a right-side cross-sectional structure of a cartridge according to the present utility model

FIG. 7 is a graph showing the effect of the prior instrument on anastomosis of intestinal tracts;

fig. 8 is a graph showing the effect of the improved instrument on anastomosis of the intestinal canal.

In the figure: the nail cutter comprises a fixed handle 1, an adjusting nut 2, a safety bolt 3, a movable handle 4, a nail bin assembly 5, a nail bin end cover 6, a puncture connecting shaft 7, a cutter 8, a clamp spring joint 9, a nail anvil 10, a nail anvil cover 11, a nail pusher 12, a clamping reed 13, a bent pipe body 14 and a nail groove 15.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

Referring to fig. 1-8, the present utility model provides a technical solution for a wave-shaped cutting anastomosis assembly of a tubular anastomat:

embodiment one:

according to the embodiments shown in fig. 1-8, the tubular anastomat comprises a tubular anastomat main body which mainly comprises a fixed handle 1, an adjusting nut 2, a safety bolt 3, a movable handle 4, an elbow body 14 and an anastomotic assembly, wherein the anastomotic assembly comprises a nail anvil 10 and a nail bin assembly 5, the fixed handle 1, the adjusting nut 2, the safety bolt 3, the movable handle 4, the elbow body 14 and the nail bin assembly 5 in the embodiments are all of the prior art, and the structure and the connection relation thereof are already of the very mature technology in the prior art, so the detailed structure and the connection relation thereof are not described in the embodiment.

The end part of the nail bin assembly 5 is provided with a puncture connecting shaft 7, a cutter 8, a nail pusher 12 and a nail bin end cover 6 from inside to outside.

The end face of the nail bin end cover 6 is arranged in a wave shape along the circumferential direction of the nail bin end cover 6 to form a wave-shaped end face; the nail pusher 12 is arranged in the nail bin end cover 6, the nail pusher 12 is arranged in a wave shape along the circumferential direction of the nail bin assembly 5, the nail pushing sheet of the nail pusher 12 is perpendicular to the wave crest or the wave trough of the wave-shaped end face of the cover, and the nail pushing sheet corresponds to the nail hole formed in the nail bin end cover 6.

The tangent plane of cutter 8 is the wave type setting along the circumferencial direction of cutter 8, forms wave type tangent plane, and its effect lies in: the inner tissue thereof is cut by a cutter 8.

Be provided with the plastics gasket in the nail anvil 10, install nail anvil closing cap 11 on the nail anvil 10, the butt joint end of nail anvil 10 is the wave setting along the circumferencial direction of nail anvil 10, forms wave formula butt joint face, wave formula butt joint face matches with wave formula terminal surface, its effect lies in: the perimeter of the anastomotic stoma is enlarged, the ductility of the anastomotic stoma is increased, the anastomotic curve is not on a plane, the occurrence rate of scar stenosis at the later stage of the anastomotic stoma is reduced, a plurality of nail grooves 15 are circumferentially formed on the wavy butt joint surface, the nail grooves 15 are matched with corresponding nail pushing sheets, and then two rows of mutually staggered staples in circular arrangement can be formed.

The tip cross-section of puncture connecting axle 7 is the rectangle, and jump ring joint 9 is installed to the axle center department of nail anvil 10, and the tip hole that jump ring connects 9 is the square hole, and jump ring joint 9 matches with puncture connecting axle 7, and its effect lies in: the butt joint of nail storehouse end cover 6 and nail drill seat of being convenient for alleviates the rotatableness damage to intestinal wall in the anastomotic process, has reduced the degree of difficulty of operation, is provided with the jump ring piece 13 that is used for joint puncture connecting axle 7 on the jump ring joint 9, and the quantity of jump ring piece is two, sets up respectively at jump ring joint's top and bottom.

In particular use, the wave-shaped cutting anastomosis assembly of the tubular anastomat of the utility model is firstly taken out during surgery, then the adjusting nut 2 is rotated anticlockwise, the nail anvil 10 is opened,

then the adjusting nut 2 is rotated clockwise to enable the puncture connecting shaft 7 to completely retract into the nail bin assembly 5 so as to avoid damage in the process of inserting the instrument, the removed nail anvil 10 is placed into one end of the tubular cavity to be anastomosed, which is already subjected to purse string suturing, then the purse string risk is tightened at the knotting groove of the nail anvil 10, and redundant tissue edges are trimmed;

afterwards, the instrument is inserted into the lumen, the adjusting nut 2 is rotated anticlockwise to enable the puncture connecting shaft 7 to penetrate out of the closed lumen wall, the jump ring connector 9 is in butt joint with the puncture connecting shaft 7, and when a crisp click sound is heard, the connection is indicated to be in place;

the adjusting nut 2 is rotated clockwise to enable the end cover 6 of the nail bin and the nail anvil 10 to be in butt joint and anastomotic, when an indicating mechanism on the fixed handle 1 reaches a green safety area, the safety bolt 3 can be manually pushed backwards integrally, at the moment, the safety bolt 3 is in an open state, then the fixed handle 1 and the movable handle 4 are held for firing operation, when clear and crisp click sound is heard, the completion of firing is indicated, and the intestinal canal anastomosis effect is shown in fig. 8;

finally, the anastomat body is withdrawn while rotating, whether the resected tissue is perfect or not is confirmed, whether the abnormal situation occurs at the suture position or not is confirmed, and if the abnormal situation is found, the abnormal situation is treated in time.

Embodiment two:

on the basis of the first embodiment, the differences are as follows: the distance between the wave crest and the wave trough is 3-5mm.

Claims (5)

1. The utility model provides a wave type cutting anastomotic assembly of tubular anastomat, includes tubular anastomat main part, and tubular anastomat main part comprises fixed handle, adjusting nut, safe bolt, movable handle, return bend body and anastomotic assembly, its characterized in that: the anastomotic assembly comprises a nail anvil block and a nail bin assembly, wherein the end part of the nail bin assembly is sequentially provided with a puncture connecting shaft, a cutter, a nail pusher and a nail bin end cover from inside to outside;

the end face of the nail bin end cover is arranged in a wave shape along the circumferential direction of the nail bin end cover to form a wave-shaped end face; the nail pushing device is arranged in the nail bin end cover, the nail pushing device is arranged in a wave shape along the circumferential direction of the nail bin assembly, a nail pushing sheet of the nail pushing device is perpendicular to a wave crest or a wave trough of the wave-shaped end surface of the cover, and the nail pushing sheet corresponds to a nail hole formed in the nail bin end cover;

the tangent plane of the cutter is arranged in a wave shape along the circumferential direction of the cutter to form a wave-shaped tangent plane;

a plastic gasket is arranged in the nail anvil, a nail anvil cover cap is arranged on the nail anvil, the abutting end of the nail anvil is arranged in a wave shape along the circumferential direction of the nail anvil to form a wave-shaped abutting surface, the wave-shaped abutting surface is matched with the wave-shaped end surface, a plurality of nail grooves are formed in the wave-shaped abutting surface in a surrounding mode, and the nail grooves are matched with corresponding nail pushing sheets;

the axis of the nail anvil block is provided with a clamp spring connector which is matched with the puncture connecting shaft, and the clamp spring connector is provided with a clamp spring for clamping the puncture connecting shaft.

2. The wave-cut anastomosis assembly of a tubular stapler of claim 1, wherein: and an inner hole at the end part of the snap spring connector is a square hole.

3. The wave-cut anastomosis assembly of a tubular stapler of claim 2, wherein: the cross section of the end part of the puncture connecting shaft is rectangular.

4. A wave-cut anastomosis assembly according to any of claims 1-3, wherein: the number of the snap spring sheets is two, and the two snap spring sheets are respectively arranged at the top and the bottom of the snap spring connector.

5. The wave-cut anastomosis assembly of a tubular stapler of claim 1, wherein: the distance between the wave crest and the wave trough is 3-5mm.

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