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Negative pressure drainage device used for wound repairing

A negative pressure drainage and wound repair technology, applied in the field of medical devices, can solve problems such as poor drainage of sponges, easily blocked sponges, unusable medical sponges, etc., to reduce scar generation, prevent wound drying, and have good absorption and exudation ability. Effect

Inactive Publication Date: 2017-03-29
周代君
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During negative pressure drainage treatment, the medicine is usually changed every 3-5 days, but during use, as the exudate increases and dries up, it is easy to block the pores between the sponges, causing the drainage of the sponge to be unsmooth, and eventually making the medical sponge unusable

Method used

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  • Negative pressure drainage device used for wound repairing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Sodium carboxymethyl cellulose, sodium polyacrylate, and water-soluble chitosan with a weight ratio of 5:3:11 were dissolved in deionized water to prepare a spinning solution with a weight percentage of water-soluble chitosan of 5%, and ultrasonically 1h, adjust the spinning voltage to 30kV, the flow rate of the spinning solution to 1ml / h, cover the collecting cylinder with calcium alginate fibers, the distance between the calcium alginate fibers and the spinneret is 15cm, and the calcium alginate fibers are collected and spun immediately It is the polymer dressing layer.

Embodiment 2

[0025] Sodium carboxymethyl cellulose, sodium polyacrylate, and water-soluble chitosan with a weight ratio of 4:2:3 were dissolved in deionized water to prepare a spinning solution with a weight percentage of water-soluble chitosan of 8%, and ultrasonically 1h, adjust the spinning voltage to 25kV, the spinning liquid flow rate to 0.5ml / h, cover the collection cylinder with calcium alginate fibers, the distance between the calcium alginate fibers and the spinneret is 10cm, and the calcium alginate fibers are collected and spun It is the polymer dressing layer.

Embodiment 3

[0027] Sodium carboxymethyl cellulose, sodium polyacrylate, and water-soluble chitosan with a weight ratio of 6:1:8 were dissolved in deionized water to prepare a spinning solution with a weight percentage of water-soluble chitosan of 3%, and ultrasonically 1h, adjust the spinning voltage to 15kV, the flow rate of the spinning solution to 2ml / h, cover the collecting cylinder with calcium alginate fibers, the distance between the calcium alginate fibers and the spinneret is 12cm, and the calcium alginate fibers are collected and spun immediately It is the polymer dressing layer.

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Abstract

The invention relates to a negative pressure drainage device used for wound repairing. The negative pressure drainage device comprises a drainage tube, a sponge, a fluid collecting bag and a negative pressure machine. An aseptic sticking film is arranged on the top of the sponge. A polymer dressing layer is arranged at the bottom of the sponge. The drainage tube transversely penetrates the whole sponge. A plurality of through holes are formed in both the bottom and the side wall of the part, located in the sponge, of the drainage tube. One end of the drainage tube penetrates through the sponge and is plugged with a plug. The other end of the drainage tube is connected with an inlet of the fluid collecting bag. The top of the fluid collecting bag is connected with the negative pressure machine through a catheter. A one-way valve is arranged on the drainage tube in front of the fluid collecting bag. According to the negative pressure drainage device, the polymer dressing layer and the PU sponge are adopted, the absorbing and exuding ability is good, debridement is active, a wound is prevented from being dried, granulation tissue growing is promoted, the normal skin is not dipped, an adhesion does not occur, and scars are reduced; and meanwhile, unobstructed drainage is guaranteed, and the negative pressure drainage device is convenient to use.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a negative pressure drainage device for wound repair. Background technique [0002] After trauma or surgery, complications such as wound infection and wound non-healing are often encountered. Many wounds are sometimes very complicated, not only deep, but also have a lot of exudation and take a long time to heal. In addition, because the skin around the wound is often soaked in the exudate, the healthy skin around the wound is edematous and ulcerated. If there is no effective drainage and external force, even if the wound heals after a long time, the interior will be filled with many scars, which will greatly affect the appearance. [0003] The negative pressure drainage device is used for the negative pressure drainage operation of various skin and soft tissue wounds. The negative pressure drainage wound treatment technology is a new technology developed in recent years for the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/02A61L15/28A61L15/24A61L15/42
CPCA61L15/24A61L15/28A61L15/42A61F13/0206A61F13/0286A61F13/01008A61F13/01042A61F13/05C08L5/04C08L1/286C08L5/08C08L33/02
Inventor 周代君罗高兴梁毅高志明
Owner 周代君