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Customizable wound dressing and manufacture method thereof

A wound dressing and wound technology, applied in the field of medical supplies, can solve the problems of limiting the exudate absorption capacity of the dressing, reducing the dressing effect, and unable to provide tissue cells, so as to inhibit bacterial growth, accelerate wound healing, and promote wound healing. Effect

Inactive Publication Date: 2018-09-07
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the gel medical dressings on the market do not have customized shapes for various wounds, resulting in a decrease in the dressing's fit effect
In addition, most gel medical dressings do not have functional structures such as waste liquid and nutrition that actively promote wound recovery, which greatly limits the exudate absorption capacity of the dressing, and at the same time cannot provide external nutrition to the tissue cells at the wound, slowing down the recovery process. speed of wound recovery

Method used

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  • Customizable wound dressing and manufacture method thereof

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Effect test

Embodiment 1

[0037] Embodiment 1, the present invention provides a kind of adjustable alginate nano-silver wound active dressing with internal channel and preparation method, it comprises the following steps:

[0038] (1) Establish dressing appearance model and path: use 3D modeling software to establish a 3D model of dressing according to the actual shape of the patient's wound. Through computer slicing software, a continuous dressing 3D printing path is generated.

[0039](2) Preparation of printing materials: Weigh a certain amount of biochemical grade sodium alginate powder, sterilize it under ultraviolet light for half an hour, mix the sodium alginate powder and deionized water according to the mass ratio of 1%-4%, The magnetic stirrer was stirred for 24 hours, the temperature was set at 60° C., and the rotation speed was 120 rpm. After uniform mixing, a sodium alginate aqueous solution with a mass concentration of 1%-4% is obtained. The sodium alginate aqueous solution is fully mix...

Embodiment 2

[0044] Embodiment 2, the present invention provides a kind of customizable alginate-GelMA wound dressing with internal channel and preparation method, it comprises the following steps:

[0045] (1) Establish dressing appearance model and path: use 3D modeling software to establish a 3D model of the dressing and the channel inside the dressing according to the actual shape of the patient's wound.

[0046] (2) Preparation of channel sacrificial layer scaffolds: water-soluble materials were used to prepare scaffolds for internal channels of the dressing according to the model of the first step.

[0047] (3) Preparation of sodium alginate-GelMA solution: weigh a certain amount of biochemical grade sodium alginate powder, sterilize it under ultraviolet light for half an hour, and mix the sodium alginate powder and the Ionized water was mixed, and the magnetic stirrer was stirred for 24 hours, the temperature was set at 60°C, and the rotation speed was 120rpm. After uniform mixing,...

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Abstract

The invention discloses a customizable wound dressing. The wound dressing comprises a dressing base body composed of a porous water-absorbing material, the dressing base body is internally provided with a micro pipe for liquid circulation, and the micro pipe is provided with an outlet and an inlet formed in the dressing base body. The invention further discloses a method for preparing the wound dressing. A nutrient solution can pass through the internal passage of the dressing, and nutrients are provided for cells while waste liquid absorbed from wounds are taken away to facilitate the recovery of the wounds. An indwelling interface in the dressing facilitates the infusion and exchange of the nutrient solution, an active environment which is beneficial for wound healing is maintained, therecovery is accelerated, and the daily action of patients is not affected.

Description

technical field [0001] The invention belongs to the technical field of medical supplies, and in particular relates to a customizable wound dressing and a manufacturing method thereof. Background technique [0002] The main function of medical dressings is to cover and protect damaged skin while providing an environment conducive to wound healing. Traditionally, natural fibrous dressings such as absorbent cotton gauze, gauze strips, cotton balls, and cotton membranes are mainly used, which can dry the wound and have the function of physical isolation; and new wounds, as well as problems such as bacterial growth, poor moisturizing and hemostatic performance. [0003] As a new type of medical dressing, gel dressing has a smooth surface, good biocompatibility, and strong water absorption capacity. When in contact with tissues, repeated hydration can occur, and the moisture in the tissues can be absorbed into the dressing, which can be continuously absorbed. The exudate from th...

Claims

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Application Information

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IPC IPC(8): A61L26/00B33Y10/00B33Y80/00
CPCA61L26/0023A61L26/0038A61L26/0066A61L26/008A61L26/0085A61L2300/252A61L2300/404B33Y10/00B33Y80/00C08L5/04
Inventor 贺永谢超淇高庆傅建中
Owner ZHEJIANG UNIV
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