Emergency wound dressing and its preparation method

A wound dressing and blank technology, applied in dressings, viscous dressings, medical science, etc., can solve the problems of poor absorption of wound exudate, easy adhesion of wound surface, poor hemostasis, etc., achieve obvious drainage effect and good adhesion , beneficial to the healing effect

Inactive Publication Date: 2006-09-13
SANITARY EQUIP INST ACAD OF MILITARY MEDICAL SCI PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the shortcomings of current emergency wound dressings such as poor hemostasis, easy adhesion to the wound surface, poor absorption of wound exudate, and easy secondary infection, the invention discloses a new emergency wound dressing

Method used

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  • Emergency wound dressing and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1 Preparation of first aid wound dressing

[0015] 1. Materials:

[0016] Viscose fiber: Tangshan Sanyou Group Chemical Fiber Company, breaking strength: 1.6-2.7cN / dtex, breaking elongation: 16.0-25.0%, linear density: 1.5-1.7dtex, length: 36.0-38.0mm.

[0017] Superabsorbent resin: FAVOR SXM 100F polymer blood-absorbing agent from Stockhausen Superabsorber, the main component is sodium polypropylene cross-linked body, artificial blood absorption: 26.0-33.0g / g; particle distribution rate: 600 mesh 3 .

[0018] Chitosan fiber: Qingdao Haisheng Biological Company, breaking strength: 1.6-2.0cN / dtex, breaking elongation: 16.0-20.0%, linear density: 1.6-1.9dtex, length: 55.0-65.0mm.

[0019] Calcium alginate fiber: China Academy of Textile Sciences, breaking strength: 1.5~1.9cN / dtex, breaking elongation: 4.0~6.0%, linear density: 3.5~4.0dtex, length: 55.0~65.0mm.

[0020] Ethylene-propylene fiber: Shanghai Synthetic Fiber Research Institute, melting poi...

Embodiment 2

[0023] Example 2 Animal experiments to detect the wound adhesion effect and hemostatic effect of emergency wound dressings

[0024] 1 Wound adhesion effect test

[0025] 1.1 Materials and methods:

[0026] 1.1.1 Materials

[0027] Group A1: chitosan fiber

[0028] Group A2: the mixing ratio of chitosan fiber and alginic acid fiber is 3:1

[0029] Group A3: the mixing ratio of chitosan fiber and alginic acid fiber is 1:1

[0030] 1.1.2 Animals

[0031] Healthy rabbits, both male and female, weighing 2.0Kg to 2.5Kg.

[0032] 1.1.3 Sample preparation

[0033] Cut materials A1, A2, and A3 into 4cm×4cm size, and sterilize under high pressure at 121°C for 20 minutes before use.

[0034] 1.1.4 Wound adhesion test

[0035] Twelve rabbits were randomly divided into 3 groups, that is, groups A1, A2, and A3, with 4 rabbits in each group, two wounds in each rabbit, and a group of eight wounds. The left and right sides of the rabbit's back were sheared to 6×10 cm, and Sumianxin 0....

Embodiment 3

[0056] The clinical use effect of embodiment three emergency wound dressings

[0057] General clinical data: First aid trauma dressing was applied to 20 patients with various types of trauma, including 17 males and 3 females, aged 15-46 years, with an average of 28 years old. There were 8 cases of upper extremity trauma, 6 cases of lower extremity trauma, 4 cases of head and face trauma, and 2 cases of trunk trauma. All were fresh wounds, and 20 cases were compared with ordinary oil gauze autologous.

[0058] Materials and methods: After wound debridement, the wound was directly bandaged and fixed with adhesive tape, and the dressing was changed once a day. Observe the anti-adhesion, absorption of exudate, and anti-infection effects, and use ordinary oil gauze soaked in chloramphenicol as the same body control. The results are shown in Table 3.

[0059]

group

Observation indicators

Number of cases

Remarkable effect

good ef...

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Abstract

A dressing for the first aid to wound is a composite non-woven cloth consisting of an internal layer made of the mixture of chitosan fibers and alginate fibers, a middle layer made of the hydroscopic fibers mixed with high-hydroscopicity resin, and an external layer made of hydrophobic fibers. Its preparing process is also disclosed.

Description

technical field [0001] The invention relates to a first-aid wound dressing, and also relates to a preparation method of the dressing. Background technique [0002] With the advancement of material science and technology, the research on medical dressings has also achieved rapid development. Traditional emergency wound dressings are mainly made of cotton products. Although cotton dressings have the characteristics of strong water absorption, good heat resistance, and excellent alkali resistance, they are also easy to shrink after absorbing secretions, and easy to cause wounds due to pollution. Infection, easy to adhere to the wound surface and cause secondary trauma and other shortcomings, and because it is an inert dressing, it has no obvious effect on promoting the healing of the wound (Li Xiaoyang, Zhu Peifang, Hu Jianian. Development and evaluation of new burn dressings. Biomedical Engineering Journal 1994;11(1):5). People are actively exploring and researching other na...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/02A61L15/28
Inventor 关静高怀生李瑞欣张西正武继民
Owner SANITARY EQUIP INST ACAD OF MILITARY MEDICAL SCI PLA
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