CN204542566U - Negative-pressure adsorption medical dressing - Google Patents
Negative-pressure adsorption medical dressing Download PDFInfo
- Publication number
- CN204542566U CN204542566U CN201520065429.9U CN201520065429U CN204542566U CN 204542566 U CN204542566 U CN 204542566U CN 201520065429 U CN201520065429 U CN 201520065429U CN 204542566 U CN204542566 U CN 204542566U
- Authority
- CN
- China
- Prior art keywords
- negative
- medical dressing
- pressure adsorption
- wound
- wound surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
This utility model provides a kind of negative-pressure adsorption medical dressing, this medical dressing is lamellar imbibition material, described lamellar imbibition material comprises the liquid-adsorption layer of three-dimensional interworking network structure and has the wound surface contact surface of three-dimensional interworking network structure at least one lateral load of this liquid-adsorption layer, described lamellar imbibition material is arranged several negative pressure drainage hole and the wound observation hole of running through its thickness.Because described negative-pressure adsorption medical dressing has liquid-adsorption layer and the negative pressure drainage hole of three-dimensional interworking network structure, the sepage of wound surface thickness or oozing of blood entirety promptly suck in dressing, wound surface moist environment can be kept, and to avoid between wound surface and adjuvant the residual of the solid constituent such as cellulose or protein in transudate, eliminate the cultivation of the microorganisms such as antibacterial on wound surface, greatly reduce the chance of traumatic infection, wound surface can skip the adhesion of incrustation phase, substantially reduces wound healing time.
Description
Technical field
This utility model relates to and a kind ofly has good absorption to wound surface thickness transudate, wound surface moist environment, wound surface can be kept for a long time can to skip the negative-pressure adsorption medical dressing of incrustation phase adhesion.
Background technology
Traditional wound healing generally uses gauze, powder formulation, spray, ointment, cream, sponginum etc., and major part, through absorbing the transudate of wound face, makes wound location dry, then heals.In recent years, find that the healing of wound dryness exists following problem: 1) wound surface local dehydration, forms incrustation, hinder epithelial creeping; 2) wound bioactive substance is lost, and healing rate is slow; 3) frequent more change dressings, makes wound surface local temperature decline, causes cell division growth rate to slow down; 4) the without hindrance impenetrability barrier of wound surface and the external world, the chance of infection increases; 5) wound healing time is long; 6) dressing and the adhesion of wound new granulation tissue, causes property damage occurs again during each more change dressings, makes patient pain.
1962, Britain doctor Winter confirms in zoopery, under wet environment, speed of wound healing is 2 times under dryness environment, simultaneously, wound local is moistening, can not incrustation be formed, and maintain the hypoxia of wound surface local microcirculation, be beneficial to the dissolving of slough and the proliferation and differentiation of cell, retain the active substance in transudate and promote that active substance discharges, creating the healing environment close to physiological status.The advantage of wound wet union may be summarized to be: 1) closure dressing, and infection chance declines; 2) local temperature is close to body temperature, and cell division growth rate is fast; 3) wound healing time is shortened; 4) dressing not with the adhesion of wound new granulation tissue.
The material of the advanced dressing of above-mentioned wound wet environment is provided to have: film dressing, foam dressing, hydrogel, bearing hydrocolloid dressing, the dressing of alginic acid salt, exist between these advanced dressing and wounds and interact, as absorbed transudate, allow gas exchange, for ecotopia is created in healing; Prevent external environment microorganism from invading, prevent wound infection; Self has activity, and can promote has active substance to play a role, with accelerating wound healing.
In above-mentioned advanced dressing, Japanese Patent Laid-Open No. Sho 58-87153 publication discloses the dressing of a kind of polyurethane film wound, and it has good retractility, but do not absorb the performance of transudate completely, therefore, during for oozing out the wound surface of transudate, hydrops is caused, need the step of carrying out draining, in addition, adhesion strength is too strong, when causing changing, with pain, regeneration skin can be lost.
Bearing hydrocolloid dressing contains hydrophilic colloid particle, has the absorbability of transudate, but wound face easily residual spawn when changing, and not easily observes wound face, when changing, also can produce adhesion and with pain.
PVA aerogel dressing be containing have an appointment 80% water, therefore, owing to maintaining moist environment, good cooling results, and the transparency good, be easy to wound observation, but almost there is no adhesion strength, must the auxiliary immobilization materials such as binder be had.
Japanese Patent Laid-Open 8-187280 publication discloses the dressing of a kind of alginic acid salt, such dressing has the absorbability of good hemostatic and transudate, but because transudate there will be gelation, so easily remain spawn when changing on wound surface, and be open, therefore for remaining moistening, preventing antibacterial from invading, preventing bacterial multiplication, must cover with thin-film material.
Utility model content
This utility model is solve the aforementioned problems in the prior proposition.
This utility model provides a kind of negative-pressure adsorption medical dressing and the application in wound healing thereof, because described negative-pressure adsorption medical dressing has liquid-adsorption layer and the negative pressure drainage hole of three-dimensional interworking network structure, the sepage of wound surface thickness or oozing of blood entirety promptly suck in dressing, wound surface moist environment can be kept, and to avoid between wound surface and adjuvant the residual of the solid constituent such as cellulose or protein in transudate, eliminate the cultivation of the microorganisms such as antibacterial on wound surface, greatly reduce the chance of traumatic infection, wound surface can skip the adhesion of incrustation phase, substantially reduce wound healing time.
For achieving the above object, this utility model is by the following technical solutions:
First aspect of the present utility model is to provide a kind of negative-pressure adsorption medical dressing, this medical dressing is lamellar imbibition material, described lamellar imbibition material comprises the liquid-adsorption layer of three-dimensional interworking network structure and has the wound surface contact surface of three-dimensional interworking network structure at least one lateral load of this liquid-adsorption layer, described lamellar imbibition material is arranged several negative pressure drainage hole and the wound observation hole of running through its thickness.
In above-mentioned negative-pressure adsorption medical dressing, preferably, the side of described imbibition material is also provided with the medical translucent pad pasting of transparent viscose.
In above-mentioned negative-pressure adsorption medical dressing, preferably, described liquid-adsorption layer is compression high-hydroscopicity polyvinyl alcohol material layer.
In above-mentioned negative-pressure adsorption medical dressing, preferably, described three-dimensional interworking network structure has the aperture being not more than 50 μm, is more preferably the aperture being not more than 45 μm, such as the aperture of 20-40 μm.
In above-mentioned negative-pressure adsorption medical dressing, preferably, the water absorbent rate of described negative-pressure adsorption medical dressing is 10-40 times, is more preferably 10-35 doubly, and such as 15-30 doubly.
In above-mentioned negative-pressure adsorption medical dressing, preferably, the absorbent time of described negative-pressure adsorption medical dressing to 500 μ l normal saline is, within 18 seconds, be more preferably 5-15 second.
In above-mentioned negative-pressure adsorption medical dressing, preferably, the moisture permeability of described negative-pressure adsorption medical dressing is determined as 500-3000g/m by cup type method
2/ 24h, is more preferably 800-2500g/m
2/ 24h.
Second aspect of the present utility model is to provide the method for a kind of medical dressing healing wound surface, and described method comprises the steps:
Step 1, provide above-mentioned negative-pressure adsorption medical dressing;
After step 2, debridement wound, cover on wound with the negative-pressure adsorption medical dressing of step 1, and the medical translucent pad pasting of the transparent viscose of tearing on described negative-pressure adsorption medical dressing, with this translucent pad pasting, described medical dressing is pasted and fixed on skin;
Step 3, at any time the wound observation hole passed through on negative-pressure adsorption medical dressing observe the healing state of wound or wound surface.
In the above-mentioned methods, use translucent pad pasting that wound surface is sealed, stop antibacterial to invade, eliminate the culture environment of the growth of microorganism such as antibacterial, effectively control bacteria breed, prevention traumatic infection.The healing state of wound or wound surface can be observed by wound observation hole at any time, eliminate the misery that sufferer opens scar, avoid repeatedly changing dressings, reduce patient's misery, Economy type medicine cost.
3rd aspect of the present utility model is to provide the application of above-mentioned negative-pressure adsorption medical dressing in wound healing, described negative-pressure adsorption medical dressing is covered on the wound surface after debridement, because described negative-pressure adsorption medical dressing has liquid-adsorption layer and the negative pressure drainage hole of three-dimensional interworking network structure, the sepage of wound surface thickness or oozing of blood entirety promptly suck in dressing, and wound surface skips the adhesion of incrustation phase.
In above-mentioned application, described wound surface comprises transudate that iliacus film syndrome open decompression, acute trauma, actute infection, abscess and intestinal fistula cause or the large various wound surface of other liquid local flow, or skin-grafting, transfer musculo cutaneous flap or other wound surface caused of performing the operation.
This utility model adopts technique scheme, compared with prior art, has following technique effect:
A kind of negative-pressure adsorption medical dressing that this utility model provides and the application in wound healing thereof, because described negative-pressure adsorption medical dressing has liquid-adsorption layer and the negative pressure drainage hole of three-dimensional interworking network structure, the sepage of wound surface thickness or oozing of blood entirety promptly suck in dressing, wound surface moist environment can be kept, and to avoid between wound surface and adjuvant the residual of the solid constituent such as cellulose or protein in transudate, eliminate the cultivation of the microorganisms such as antibacterial on wound surface, greatly reduce the chance of traumatic infection, wound surface can skip the adhesion of incrustation phase, substantially reduce wound healing time.
Accompanying drawing explanation
Fig. 1 is the top view of negative-pressure adsorption medical dressing described in the utility model;
Fig. 2 is the sectional view of negative-pressure adsorption medical dressing described in the utility model;
In figure, 1-negative-pressure adsorption medical dressing, 2-negative pressure drainage hole, 3-wound observation hole, 4-liquid-adsorption layer, 5-wound surface contact surface.
Detailed description of the invention
This utility model provides a kind of negative-pressure adsorption medical dressing.
Carry out detailed and concrete introduction below by specific embodiment to this utility model, to make better to understand this utility model, but following embodiment does not limit this utility model scope.
Composition graphs 1 and Fig. 2, this utility model provides a kind of negative-pressure adsorption medical dressing 1, this medical dressing 1 is lamellar imbibition material, described lamellar imbibition material comprises the liquid-adsorption layer 4 of three-dimensional interworking network structure and has the wound surface contact surface 5 of three-dimensional interworking network structure at least one lateral load of this liquid-adsorption layer, described lamellar imbibition material is arranged several negative pressure drainage hole 2 and the wound observation hole 3 of running through its thickness.
Wherein, the side of described imbibition material is also provided with the medical translucent pad pasting (not shown) of transparent viscose.
Wherein, described liquid-adsorption layer is compression high-hydroscopicity polyvinyl alcohol material layer.
In above-mentioned negative-pressure adsorption medical dressing, preferably, described three-dimensional interworking network structure has the aperture being not more than 50 μm, is more preferably the aperture being not more than 45 μm, such as the aperture of 20-40 μm.
In above-mentioned negative-pressure adsorption medical dressing, preferably, the water absorbent rate of described negative-pressure adsorption medical dressing is 10-40 times, is more preferably 10-35 doubly, and such as 15-30 doubly.
In above-mentioned negative-pressure adsorption medical dressing, preferably, the absorbent time of described negative-pressure adsorption medical dressing to 500 μ l normal saline is, within 18 seconds, be more preferably 5-15 second.
In above-mentioned negative-pressure adsorption medical dressing, preferably, the moisture permeability of described negative-pressure adsorption medical dressing is determined as 500-3000g/m by cup type method
2/ 24h, is more preferably 800-2500g/m
2/ 24h.
test example:
The negative-pressure adsorption medical dressing example 1-3 that this utility model provides and the comparative example 1-2 of commercially available dressing, according to following determination of test method water absorbent rate, rate of water absorption, moisture permeability.The value measured carries out the meansigma methods of 3 times respectively, and its testing result is as shown in table 1.
water absorbent rate:
In rustless steel container, put into the normal saline (0.9%NaCl) of about 10ml, test material is cut into the test film of 4*4cm, be sealed in container and preserve 8 hours, putting into the test film weight before container is m
1g (), the test film weight of taking out after 8 hours is m
2(g), water absorbent rate Q=(m
2-m
1)/m
1.
rate of water absorption:
At the normal saline (0.9%NaCl) of the surperficial 500 μ l that drip of test film, measure the time that liquid is completely absorbed.
moisture permeability:
Measure according to the cup type method of GB 1037-88.In glass container, put into about 10ml rectification water, test material is cut into the circular test film that diameter is 80mm, test film is covered the opening of glass container, with the thin film that paraffin does, glass container is sealed, measure weight W now
0.Then, leave standstill after 24 hours in the Constant Temperature and Humidity Chambers of 40 DEG C-75%, the weight W after Measurement accuracy lets cool
1, moisture permeability=(W
1-W
0) * 10
4/ A (g/m
2/ 24h), wherein A is the area (cm of glass container peristome
2).
Table 1 testing result
application examples:
The negative-pressure adsorption medical dressing example 1-3 provided by this utility model and the comparative example 1-2 of commercially available dressing is attached on 10 forearms having the patient of same degree wound surface, after 24 hours, and pain condition when judging skin adherence and peel off.
skin adherence:
Determinating reference: 1, without peeling off; 2, half is peeled off; 3, peel off.
Result of determination is as shown in table 2.
Table 2 skin adherence result of determination
| Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | |
| Decision content | 1 | 1 | 1 | 2 | 3 |
pain condition during stripping:
Determinating reference: 1, completely not bitterly; 2, not too pain perception is had; 3, pain.
Result of determination is as shown in table 3.
Pain condition result of determination when table 3 is peeled off
| Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | |
| Decision content | 1 | 1 | 1 | 3 | 3 |
Be described in detail specific embodiment of the utility model above, but it is just as example, this utility model is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that this utility model is carried out and substituting also all among category of the present utility model.Therefore, not departing from the equalization conversion and amendment done under spirit and scope of the present utility model, all should be encompassed in scope of the present utility model.
Claims (7)
1. a negative-pressure adsorption medical dressing, it is characterized in that, this medical dressing is lamellar imbibition material, described lamellar imbibition material comprises the liquid-adsorption layer of three-dimensional interworking network structure and has the wound surface contact surface of three-dimensional interworking network structure at least one lateral load of this liquid-adsorption layer, described lamellar imbibition material is arranged several negative pressure drainage hole and the wound observation hole of running through its thickness.
2. negative-pressure adsorption medical dressing according to claim 1, is characterized in that, the side of described imbibition material is also provided with the medical translucent pad pasting of transparent viscose.
3. negative-pressure adsorption medical dressing according to claim 1, is characterized in that, described liquid-adsorption layer is compression high-hydroscopicity polyvinyl alcohol material layer.
4. negative-pressure adsorption medical dressing according to claim 1, is characterized in that, described three-dimensional interworking network structure has the aperture being not more than 50 μm.
5. negative-pressure adsorption medical dressing according to claim 1, is characterized in that, the water absorbent rate of described negative-pressure adsorption medical dressing is 10-40 times.
6. negative-pressure adsorption medical dressing according to claim 1, is characterized in that, the absorbent time of described negative-pressure adsorption medical dressing to 500 μ l normal saline is within 18 seconds.
7. negative-pressure adsorption medical dressing according to claim 1, is characterized in that, the moisture permeability of described negative-pressure adsorption medical dressing is determined as 500-3000g/m by cup type method
2/ 24h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065429.9U CN204542566U (en) | 2015-01-29 | 2015-01-29 | Negative-pressure adsorption medical dressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065429.9U CN204542566U (en) | 2015-01-29 | 2015-01-29 | Negative-pressure adsorption medical dressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204542566U true CN204542566U (en) | 2015-08-12 |
Family
ID=53817741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520065429.9U Expired - Fee Related CN204542566U (en) | 2015-01-29 | 2015-01-29 | Negative-pressure adsorption medical dressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204542566U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622643A (en) * | 2015-01-29 | 2015-05-20 | 上海市同仁医院 | Medical negative-pressure adsorption dressing and application thereof |
| CN112057718A (en) * | 2020-08-24 | 2020-12-11 | 浙江隆泰医疗科技股份有限公司 | Barrier material for respiratory system |
| JP7336784B2 (en) | 2019-05-15 | 2023-09-01 | 国立大学法人富山大学 | wound contact member |
-
2015
- 2015-01-29 CN CN201520065429.9U patent/CN204542566U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622643A (en) * | 2015-01-29 | 2015-05-20 | 上海市同仁医院 | Medical negative-pressure adsorption dressing and application thereof |
| JP7336784B2 (en) | 2019-05-15 | 2023-09-01 | 国立大学法人富山大学 | wound contact member |
| CN112057718A (en) * | 2020-08-24 | 2020-12-11 | 浙江隆泰医疗科技股份有限公司 | Barrier material for respiratory system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Obagi et al. | Principles of wound dressings: a review | |
| CN104622645A (en) | Medical negative-pressure adsorption dressing and method for using medical negative-pressure adsorption dressing to heal wound surface | |
| CN111228040B (en) | Absorbable anti-adhesion dressing and preparation method thereof | |
| Seaman | Dressing selection in chronic wound management | |
| MXPA97001890A (en) | Spirosorbent bandage for wounds for the management of exud | |
| Thomas et al. | Testing dressings and wound management materials | |
| CN102850598B (en) | Alginate-gelatin-carboxymethylcellulose sodium blend membrane, and preparation and application thereof | |
| CN204671391U (en) | A kind of hydrogel foam dressing | |
| CN103271794B (en) | Biological antibiotic based on bedsore wound is applied ointment or plaster | |
| CN111558081B (en) | Method for preparing tannin modified double-layer hydrogel | |
| CN104622643A (en) | Medical negative-pressure adsorption dressing and application thereof | |
| CN204542566U (en) | Negative-pressure adsorption medical dressing | |
| CN207575472U (en) | A kind of antibacterial anti hemorrhagic combine dressing | |
| WO2016029602A1 (en) | Total absorption dressing for viscous exudate and blood | |
| CN205181614U (en) | Dressing of compound biological activity fibre | |
| CN202682163U (en) | Double-layer hydrocolloid medical dressing | |
| CN204072475U (en) | A kind of composite aquogel wound dressing | |
| CN209500357U (en) | A kind of self-adaptation type alginate dressing | |
| CN204050037U (en) | A kind of Compound Water colloid medical dressing | |
| CN109276748B (en) | Anti-adhesion healing-promoting antibacterial hydrocolloid dressing and preparation method thereof | |
| CN207950004U (en) | Medical air-permeable strong absorptive Multifunctional plaster | |
| CN209203745U (en) | A kind of quantum medical trauma adhesive dressing patch | |
| CN102847196B (en) | Wet wound surface dressing and preparation method thereof | |
| WO2001091681A1 (en) | Wound dressing | |
| CN216876810U (en) | Composite medical foaming cotton |
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: 20150812 Termination date: 20220129 |