CN201949387U - Medical dressing with chitosan fibers - Google Patents
Medical dressing with chitosan fibers Download PDFInfo
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- CN201949387U CN201949387U CN2010206880229U CN201020688022U CN201949387U CN 201949387 U CN201949387 U CN 201949387U CN 2010206880229 U CN2010206880229 U CN 2010206880229U CN 201020688022 U CN201020688022 U CN 201020688022U CN 201949387 U CN201949387 U CN 201949387U
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- chitosan
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- chitin fiber
- medical dressings
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Abstract
The utility model relates to medical dressing with chitosan fibers, comprising a substrate on a top layer, a chitosan fiber layer on a middle layer, and a release paper layer on a bottom layer. The medical dressing with chitosan fibers is soft, protects and prevents pain and is not adhered to wounds, so that the blood loss and the operation time of the medical personnel are reduced, bacteria are prohibited and wound infection is prevented, the absorption ability is super-strong and the blood can be stopped quickly, the medical dressing is applicable in treating the heavy bleeding of artery, and postoperative complications are reduced.
Description
Technical field
This utility model relates to a kind of medical auxiliary materials, relates in particular to a kind of chitosan fiber medical dressings.
Background technology
Medical dressing is the material that is used for covering wound.Their main functions are the transudates of control wound and protect wound to avoid the pollution of antibacterial and grit.Before the better document record of healing effect can be traced back to 4500 after wound surface covered, development through several thousand, a large amount of dissimilar dressing appearred to today, at present, medical dressing mainly contains two kinds: a kind of is to use natural material, as cotton cloth, can degrade at occurring in nature, can not cause environmental pollution after the use; A kind of is the synthetic material of using artificial, and these materials can not be degraded at occurring in nature, cause the pollution to environment.Select Medical dressing besides now, consideration more be breathability, comfortableness.
Chinese patent discloses a kind of " the not water absorption medical dressing of sticking wound (application number: 97203528.1; applying date: on 04 18th, 1997; open day: on 09 30th, 1998) "; the protective mulch that its structure is made by silicon paper, commercially available micropore non-woven fabrics and be coated on the water accepting layer that the polyacrylic water-absorbing resins film on the micropore non-woven fabrics constitutes, the base layer that fabric that strikes up partnership with water accepting layer or breathability non-woven fabrics are made constitutes.This medical dressing has only been considered its breathability, hygroscopic problem, uses the rear section material still can not degrade voluntarily, and contaminated environment, helps less to wound healing.Traditional gauze can not satisfy the needs that people are binding up a wound.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of processing and easy to use is provided, and can promote wound healing, hemostasis rapidly, the chitosan medical dressing that security performance is high.
The chitosan fiber medical dressings that this utility model provides comprises: the base material of top layer; The chitin fiber layer in intermediate layer; And the off-style paper layer of the bottom.Viscosity＞the 800mPa.s of wherein said chitin fiber, deacetylation＞90%, ash＜0.5%, the chitin fiber fiber number is 1.2～5.0dtex, intensity＞1.5CN/dtex, elongation at break＞6%, bacteriostasis rate＞85%, chitosan content＞99.9% in the chitin fiber.
Described base material is preferably non-woven fabrics.
Preferably, also comprise nano-Ag particles in the described chitin fiber layer.The particle diameter of described nano-Ag particles is preferably the 5-50 nanometer.
Preferably, between described chitin fiber layer and the off-style paper layer isolating membrane is set.
Scribble PUR or factice on the base material of described chitosan fiber medical dressings.
Chitosan fiber medical dressings described in the utility model, chitin fiber can also form blend fibre with other fiber, and other fiber is preferably at least a in NACF, bamboo carbon fiber, viscose rayon, the aethiops vegetabilis fiber.Described chitin fiber accounts for ratio 〉=5% of blend fibre.
The beneficial effect that chitosan fiber medical dressings described in the utility model possesses is at least:
1. contain in the chitosan fiber medical dressings and need not add any medicine, can directly apply on wound, and owing to wherein contain chitin fiber, chitin fiber is the renewable polymer of a kind of biology, biologically active, biodegradability.Therefore, the chitosan fiber medical dressings that provides of this utility model is a Green Product.
2. skin growth facilitation.Chitosan fiber medical dressings and skin connect when only, and 1.5～2 times of the average hypertrophy of the lysozyme on the skin make skin keep soft and elastic force constantly.
3. the chitosan fiber medical dressings softness is protected and is avoided pain, is not stained with sticking wound; Reduce loss of blood and medical personnel's operating time; The antibacterial traumatic infection of avoiding; Superabsorbent is stopped blooding rapidly; Being fit to handle tremulous pulse bleeds profusely; To " anticoagulant blood " also effectively hemostasis; Reduce post-operative complication.
4. chitosan fiber medical dressings has the anti-mildew effect, alleviates fetid sweat, keeps clean.
5. chitosan fiber medical dressings has adsorption to harmful substance.Because contain chitosan in the chitin fiber in the chitosan fiber medical dressings, chitosan is the natural high molecular substance that has positive charge, have the harmful metal ripple of absorption or the effect of electron waves, and the function of cutting off radioactive contaminant.In general, antibacterials such as harmful escherichia coli and staphylococcus aureus band anion, in contrast, chitosan has cation because containing amino.Because the adelphotaxy of positive and negative charge makes chitosan can suppress the breeding of harmful bacterium.This effect along with the purity of chitosan, be the increase of degree of deacetylation and increasing.
6. chitosan fiber medical dressings can prevent static and high dyeability.
7. chitosan fiber medical dressings has good moisture preserving.Chitosan has a large amount of amino and hydroxyl, therefore makes chitosan fiber medical dressings have good hydrophilic, can protect human body to keep moistening.
8. chitosan fiber medical dressings can be improved treatment of wounds and healing condition.
For above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the structural representation of the chitin fiber dressing of a preferred embodiment of the present utility model;
Fig. 2 is the A-A cutaway view of chitin fiber dressing shown in Figure 1.
The specific embodiment
Embodiment 1: the preparation of chitin fiber
Chitin fiber preparation process of the present utility model comprises: spinning liquid preparation, spinning liquid deaeration, once filtration, deaeration again, dosing pump metering, secondary filter, spinning, solidify filamentation, once washing, activation processing, secondary water washing and drying; Spinning liquid preparation be with account for the spinning liquid total weight percent be 3%～10% chitosan powder place 1%～5% glacial acetic acid aqueous solution under stirring condition temp-controlling and time-controlling slowly dissolving make, 10～30 ℃ of solution temperatures, dissolution time is 10～48 hours, 60～180 rev/mins of mixing speeds.Its concrete preparation method is disclosed in the applicant's CN101250759A (open day is on August 27th, the 2008) patent, and its full content is herein incorporated by reference.The purity height of the chitin fiber that this preparation method is simple, cost is low and make.
The chitin fiber of this utility model preparation has higher molecular weight, enough amino, stable fibre structure and good performance, as antibiotic property, brute force and wholesomeness; Viscosity＞the 800mPa.s of chitin fiber, deacetylation＞90%, ash＜0.5%, the chitin fiber fiber number is 1.2～5.0dtex, intensity＞1.5CN/dtex, elongation at break＞6%, bacteriostasis rate＞85%, chitosan content＞99.9% in the chitin fiber.
Embodiment 2: the antibacterial checking of chitin fiber
The chitin fiber of embodiment 1 preparation is delivered Tongbiao Standard Technology Service Co., Ltd (SGS) test report, chitin fiber to the bacteriostasis rate of escherichia coli, staphylococcus aureus, Candida albicans respectively up to 96.4%, 92.2%, 70.3%.
Embodiment 3: the preparation of chitin fiber dressing
Please refer to Fig. 1-2, wherein Fig. 1 is the structural representation of chitin fiber dressing of the present utility model, and Fig. 2 is the A-A cutaway view of the chitin fiber dressing shown in Fig. 1.The superiors of chitin fiber adjuvant are base materials 1, and it is preferably non-woven fabrics, and other suitable material all can and belong to protection domain of the present utility model; The intermediate layer is the chitin fiber 2 of embodiment 1 preparation, and orlop is the release paper 3 that has than obdurability.When the above-mentioned chitin fiber dressing of preparation, covering substrates on chitin fiber 2, on base material 1, coat PUR or factice then with fixing chitin fiber 2, bonding release paper 3 below chitin fiber 2 can adopt the known any bonding technology of those skilled in the art to bond again.
Preferably, near on the bottom surface of release paper 3, can be covered with one deck isolating membrane 4, at chitin fiber 2 so that peel off release paper 3 in use rapidly.
In order further to increase fungistatic effect, can also in chitin fiber and/or blend fibre, add nano-Ag particles, its particle diameter is preferably the 5-50 nanometer, most preferably is 15 nanometers.
The shape of chitin fiber dressing, the length in intermediate layer are not limited to shown in Fig. 1-2, its shape can design the arbitrary shape of suitable needs as required, and the length in intermediate layer for example can be designed to the base material identical length as required or be slightly less than the length of base material.
Chitin fiber dressing can be packed separately also and can a plurality ofly pack together, makes finished product after the sterilization.
Though this utility model discloses as above with preferred embodiment; right its is not in order to limit this utility model; any person of ordinary skill in the field; in not breaking away from spirit and scope of the present utility model; when doing a little change and improvement, therefore protection domain of the present utility model is as the criterion when looking the claim person of defining.
Claims (5)
1. a chitosan fiber medical dressings is characterized in that, comprises:
The base material of top layer;
The chitin fiber layer in intermediate layer; And
The off-style paper layer of the bottom.
2. chitosan fiber medical dressings according to claim 1 is characterized in that, described base material is a non-woven fabrics.
3. chitosan fiber medical dressings according to claim 1 is characterized in that, comprises nano-Ag particles in the described chitin fiber layer.
4. chitosan fiber medical dressings according to claim 3 is characterized in that, between described chitin fiber layer and the off-style paper layer isolating membrane is set.
5. according to each described chitosan fiber medical dressings of claim 1 to 4, it is characterized in that, scribble PUR or factice on the described base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206880229U CN201949387U (en) | 2010-12-29 | 2010-12-29 | Medical dressing with chitosan fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206880229U CN201949387U (en) | 2010-12-29 | 2010-12-29 | Medical dressing with chitosan fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201949387U true CN201949387U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206880229U Expired - Fee Related CN201949387U (en) | 2010-12-29 | 2010-12-29 | Medical dressing with chitosan fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201949387U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103735357A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁百兰斯科技开发有限公司 | Dressing with activated carbon adsorption particles |
| CN103933604A (en) * | 2013-05-28 | 2014-07-23 | 河南欧克摩斯生物科技有限公司 | Method for preparing antibacterial and hemostatic dressing |
| CN111701068A (en) * | 2020-08-06 | 2020-09-25 | 苏州良辰生物医药科技有限公司 | Antiviral skin dressing and preparation method thereof |
-
2010
- 2010-12-29 CN CN2010206880229U patent/CN201949387U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933604A (en) * | 2013-05-28 | 2014-07-23 | 河南欧克摩斯生物科技有限公司 | Method for preparing antibacterial and hemostatic dressing |
| CN103735357A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁百兰斯科技开发有限公司 | Dressing with activated carbon adsorption particles |
| CN111701068A (en) * | 2020-08-06 | 2020-09-25 | 苏州良辰生物医药科技有限公司 | Antiviral skin dressing and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20181229 |