Antibacterial dressing for hepatobiliary surgery

A surgical and hepatobiliary technology, applied in medical science, bandages, absorbent pads, etc., can solve the problems of hydrogel dressings with no antibacterial and bacteriostatic effect, no antibacterial and bacteriostatic ingredients, and poor wound wettability, etc., and achieves strong hygroscopic effect. , enhance effect, enhance antibacterial and anti-inflammatory effect

Active Publication Date: 2021-09-07
NANYANG CITY CENT HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the hydrogel dressing has no antibacterial and antibacterial effect, and the amount of gel used on the gauze will affect the air permeability, and a small amount of use will affect the water absorption effect
[0004] Chinese patent document (publication number CN108704162A) discloses a water-absorbing dressing and its preparation method, which belongs to the field of medical technology and solves the problem of poor ability of existing hydrogel accessories to maintain wound moisture
The auxiliary material of the invention can absorb a large amount of wound exudate while maintaining a moist environment of the wound, but it does not contain antibacterial and antibacterial ingredients

Method used

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  • Antibacterial dressing for hepatobiliary surgery
  • Antibacterial dressing for hepatobiliary surgery

Examples

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Effect test

Embodiment 1

[0030] An antibacterial dressing for hepatobiliary surgery, such as figure 1 As shown, it includes fiber layer one 1, gel layer 2 and fiber layer two 3 arranged sequentially from the inside and outside, wherein the gel layer 2 is made of the following raw materials in parts by weight: 45 parts of acrylic acid, N-methylol 40 parts of acrylamide, 20 parts of polyvinyl alcohol, 1 part of aluminum glycylate, 8 parts of talcum powder, 1 part of polypropylene fiber, 4 parts of sodium carboxymethyl cellulose, 12 parts of polyvinylpyrrolidone, N, N-methylene 0.6 parts of bisacrylamide, 0.5 parts of sodium persulfate and 200 parts of water.

[0031] Wherein fiber layer one 1 is 2 layers of grid gauze, and described fiber layer two 3 is bamboo charcoal fiber non-woven fabric.

[0032] Wherein the gel in the gel layer is prepared by the following steps:

[0033] (1) Dissolve acrylic acid in water, add polyvinyl alcohol, N-methylolacrylamide, and polyvinylpyrrolidone in turn and stir we...

Embodiment 2

[0040] An antibacterial dressing for hepatobiliary surgery, such as figure 1 As shown, it includes fiber layer one 1, gel layer 2 and fiber layer two 3 arranged sequentially from the inside and outside, wherein the gel layer 2 is made of the following raw materials in parts by weight: 46 parts of acrylic acid, N-methylol 42 parts of acrylamide, 18 parts of polyvinyl alcohol, 1.2 parts of aluminum glycylate, 7 parts of talcum powder, 1.2 parts of polypropylene fiber, 5 parts of sodium carboxymethyl cellulose, 11 parts of polyvinylpyrrolidone, N, N-methylene 0.7 parts of bisacrylamide, 0.6 parts of sodium persulfate and 220 parts of water.

[0041] Wherein fiber layer one 1 is 2 layers of grid gauze, and described fiber layer two 3 is bamboo charcoal fiber non-woven fabric.

[0042] Wherein the gel in the gel layer is prepared by the following steps:

[0043] (1) Dissolve acrylic acid in water, add polyvinyl alcohol, N-methylolacrylamide, and polyvinylpyrrolidone in turn and sti...

Embodiment 3

[0050] An antibacterial dressing for hepatobiliary surgery, such as figure 1 As shown, it includes fiber layer one 1, gel layer 2 and fiber layer two 3 arranged sequentially from the inside and outside, wherein the gel layer 2 is made of the following raw materials in parts by weight: 48 parts by weight of acrylic acid, N-methylol 44 parts of acrylamide, 16 parts of polyvinyl alcohol, 1.4 parts of aluminum glycylate, 6 parts of talcum powder, 1.4 parts of polypropylene fiber, 6 parts of sodium carboxymethyl cellulose, 10 parts of polyvinylpyrrolidone, N, N-methylene 0.8 parts of bisacrylamide, 0.7 parts of sodium persulfate and 250 parts of water.

[0051] Wherein fiber layer one 1 is 2 layers of grid gauze, and described fiber layer two 3 is bamboo charcoal fiber non-woven fabric.

[0052] Wherein the gel in the gel layer is prepared by the following steps:

[0053] (1) Dissolve acrylic acid in water, add polyvinyl alcohol, N-methylolacrylamide, and polyvinylpyrrolidone in ...

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Abstract

The invention discloses an antibacterial dressing for hepatobiliary surgery, which relates to the technical field of medical dressings and comprises a fiber layer 1, a gel layer and a fiber layer 2 sequentially arranged from inside to outside, and the gel layer is made of the following raw materials in parts by weight Ingredients: 45-55 parts of acrylic acid, 40-50 parts of N-methylolacrylamide, 10-20 parts of polyvinyl alcohol, 1-2 parts of aluminum glycylate, 3-8 parts of talc, 1-2 parts of polypropylene fiber , 4-8 parts of carboxymethylcellulose sodium, 5-12 parts of polyvinylpyrrolidone, 0.6-1.2 parts of N, N-methylenebisacrylamide, 0.5-1 part of sodium persulfate and 200-300 parts of water, the The dressing has excellent antibacterial properties and mechanical properties, which contributes to the rapid recovery of wounds.

Description

technical field [0001] The invention relates to the technical field of medical dressings, in particular to an antibacterial dressing for hepatobiliary surgery. Background technique [0002] Hepatobiliary surgery is mostly laparotomy, with high intraoperative blood loss, long operation time, and postoperative surgical site infection as common complications, and the prevention of incision infection after hepatobiliary surgery is crucial to the postoperative recovery of patients, and antibacterial dressings It is a commonly used dressing for postoperative wound care. It is used to stop bleeding or absorb wound exudate. It can antibacterial and antibacterial, and accelerate wound recovery. [0003] Chinese patent document (publication number CN 105664238B) discloses a preparation method and application of a zwitterionic hydrogel dressing. Mix the zwitterionic monomer, cross-linking agent, initiator, sodium chloride and distilled water uniformly according to the content range of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L15/18A61L15/20A61L15/24A61L15/28A61L15/40A61L15/42A61L15/44A61L15/46
CPCA61L15/18A61L15/20A61L15/24A61L15/28A61L15/40A61L15/42A61L15/44A61L15/46A61L2300/104A61L2300/30A61L2300/404C08L29/04C08L33/02C08L39/06C08L1/286
Inventor 戴兵张林娇张明万品文杨启吕新远杨延白璐璐张明翠牛瑛
Owner NANYANG CITY CENT HOSPITAL
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