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A kind of preparation method of surgical stapler for gastrointestinal surgery

A technology for surgery and staplers, applied in the field of medical devices in gastrointestinal surgery, can solve the problems of increasing surgical trauma and time, endangering patients' lives, increasing infection, etc., achieving controllable degradation time, reducing medical expenses, and reducing wounds Effect of infection

Active Publication Date: 2020-10-23
戴庆涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, manual silk anastomosis and stapler anastomosis are mainly used. Manual silk anastomosis has many disadvantages, and the operation is complicated and time-consuming. Therefore, the incidence of complications such as anastomotic leakage, bleeding, stenosis, and anastomotic inflammation is high; although the stapler is easy to operate , can shorten the anastomosis time, but when doing two-section end-to-gut anastomosis, if you choose end-to-end anastomosis, you need to make another incision below the anastomosis to perform anastomosis. This incision increases the trauma and time of the operation, and increases In order to reduce the chance of infection, if you choose end-to-side anastomosis, you need to replace the staple cartridge to close the end of the segment and the staple will remain in the body forever, which may cause various related complications
This causes a lot of pain to the patient and sometimes even endangers the life of the patient.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for preparing a surgical stapler for gastrointestinal surgery, comprising the following steps:

[0025] (1) Preparation of semi-finished products: the purified glycolide, N, N'-ethylenebisstearamide, mixed lactide, trimethylene carbonate, polyvinyl glyoxal, acetyl citrate three Ethyl ester and stannous octoate are added to the polymerization reactor at a weight ratio of 90-93: 10-12: 6-8: 7-8: 11-12: 0.8-1: 0.5-0.6, vacuumized and filled with dry Nitrogen; after 4 cycles of vacuuming and nitrogen filling, heat up to 165-175°C, polymerize for 10-11 hours, and discharge after the reaction; dry the discharged product in a vacuum environment of 80-85°C 3.5-4.5h, until the water content reaches 5-6ppm, the first product is obtained; 10-12% of its mass is added to the first product, and uniformly mixed with a high-speed mixer to obtain a mixture, the obtained The mixture is melt-extruded and pelletized through an extruder, and the obtained pellets are dried in a vac...

Embodiment 2

[0037] A method for preparing a surgical stapler for gastrointestinal surgery, comprising the following steps:

[0038] (1) Preparation of semi-finished products: the purified glycolide, N, N'-ethylenebisstearamide, mixed lactide, trimethylene carbonate, polyvinyl glyoxal, acetyl citrate three Ethyl ester and stannous octoate are added to the polymerization reactor at a weight ratio of 90-93: 10-12: 6-8: 7-8: 11-12: 0.8-1: 0.5-0.6, vacuumized and filled with dry Nitrogen; after 4 cycles of vacuuming and nitrogen filling, heat up to 165-175°C, polymerize for 10-11 hours, and discharge after the reaction; dry the discharged product in a vacuum environment of 80-85°C 3.5-4.5h, until the water content reaches 5-6ppm, the first product is obtained; 10-12% of its mass is added to the first product, and uniformly mixed with a high-speed mixer to obtain a mixture, the obtained The mixture is melt-extruded and pelletized through an extruder, and the obtained pellets are dried in a vac...

Embodiment 3

[0051] A method for preparing a surgical stapler for gastrointestinal surgery, comprising the following steps:

[0052] (1) Preparation of semi-finished products: the purified glycolide, N, N'-ethylenebisstearamide, mixed lactide, trimethylene carbonate, polyvinyl glyoxal, acetyl citrate three Ethyl ester and stannous octoate are added to the polymerization reactor at a weight ratio of 90-93: 10-12: 6-8: 7-8: 11-12: 0.8-1: 0.5-0.6, vacuumized and filled with dry Nitrogen; after 4 cycles of vacuuming and nitrogen filling, heat up to 165-175°C, polymerize for 10-11 hours, and discharge after the reaction; dry the discharged product in a vacuum environment of 80-85°C 3.5-4.5h, until the water content reaches 5-6ppm, the first product is obtained; 10-12% of its mass is added to the first product, and uniformly mixed with a high-speed mixer to obtain a mixture, the obtained The mixture is melt-extruded and pelletized through an extruder, and the obtained pellets are dried in a vac...

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PUM

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Abstract

The invention provides a preparation method of a surgical staple for gastrointestinal surgery operation. The preparation method comprises the following steps of (1) preparation of a semi-finished product; (2) molding of a semi-finished product; (3) formation of a first spinning structure; (4) formation of a second spinning structure; (5) surface modification; and (6) disinfection packaging. The degradable time of the surgical stapler for the gastrointestinal surgery operation prepared by mass-produced processing molding technique is matched with the period of wound healing after gastrointestinal tract surgery, and the stapler has the advantages of simple operation, short anastomotic operation time, obvious inhibition of anastomotic stenosis and promotion of wound healing.

Description

technical field [0001] The invention relates to the technical field of medical instruments for gastrointestinal surgery, in particular to a method for preparing a stapler for gastrointestinal surgery. Background technique [0002] Gastrointestinal anastomosis is the most basic and common technique in abdominal surgery, and it is also a surgery that is prone to complications after surgery. At present, manual silk anastomosis and stapler anastomosis are mainly used. Manual silk anastomosis has many disadvantages, and the operation is complicated and time-consuming. Therefore, the incidence of complications such as anastomotic leakage, bleeding, stenosis, and anastomotic inflammation is high; although the stapler is easy to operate , can shorten the anastomosis time, but when doing two-section end-to-gut anastomosis, if you choose end-to-end anastomosis, you need to make another incision below the anastomosis to perform anastomosis. This incision increases the trauma and time o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/11
CPCA61B17/11
Inventor 戴庆涛
Owner 戴庆涛
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