Gastrointestinal tract anastomat and application method thereof

Abstract

The invention discloses an anastomat which comprises a plurality of anastomotic pins (31) which are made of degradable materials; a plurality of pin covers (32) which are made of degradable materials are matched with the anastomotic pins (31); the number of the anastomotic pins is the same with that of the pin covers; pin holes (34) of an annular-shaped anastomotic pin cabin (3), which face an annular surface (33) of a nail seat (2), are provided with the anastomotic pins (31); and the pin covers (32) are arranged in cover holes (22) of the plane portion (33) of the nail seat(2). The anastomat has the advantages of enabling no metal part to be reserved in a patient body due to the degradable pins and the pin covers; causing small damage to the tissues due to the fact that tips of the anastomotic pins are small and slim; causing no block of gastrointestinal tracts due to the fact that the matching structure of the pin covers and the anastomotic pins is small and exquisite; and enabling no redesign of the existing anastomat to be performed due to the fact that the structure change of the existing anastomat is small. The invention also discloses an application method of the anastomat.

Description

technical field [0001] The invention relates to a surgical instrument for tubular tissues in the human digestive tract, such as the gastrointestinal tract, especially a gastrointestinal tract stapler with improved stapling devices. Background technique [0002] Gastrointestinal stapler is a mechanical suturing device mainly used for esophagus, stomach, and intestinal tract. It is a device used in medicine to replace traditional manual suturing. It is reliable in quality, easy to use, tight and suitable for tightness, especially has the advantages of fast suturing, easy operation, and few side effects and surgical complications. [0003] Figure 1-3 Shown is a schematic structural view of a common gastrointestinal stapler, which includes a main body 1, the front end of the main body 1 has a spherical crown anvil 2, the plane part 21 of the anvil 2 corresponds to the staple cartridge 3, the main body The rear end of 1 has the adjusting knob 5 etc. of percussion handle 4 and h...

AI Technical Summary

Problems solved by technology

[0007] Although the above-mentioned prior art uses degradable materials to overcome the defects of metal staples left in the human body, the devices made of degradable materials left in the human body are obviously much larger than metal staples. Before it is fully degraded, it will seriously affect the patient's eating or digestion, especially the integrally formed anastomotic seat traverses the entire intestinal tract, and the obstruction area to the intestinal tract is quite large. Even if it is partially degraded, the fragments after collapse will be quite large. Gastrointestinal, etc. will cause unpredictable damage

And because the fastening block and the hole on the anastomotic seat must be closely matched, the head of the fastening block is round and blunt, and a large wound will be formed in the process of passing through the tissue that needs to be sutured, and the edge of the wound will be uneven. Regular torn state, but the seat body at the end of the fastening block is in the shape of a thin stick, which makes the seat body at the end of the fastening block easily slip off from the wound in the torn state, resulting in suture failure

In addition, the fastening block in the above-mentioned prior art needs to be installed in the stapler on site during the operation, which will inevitably increase the difficulty for the doctor to operate the instrument and consume valuable rescue time

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