CN111467135A - Transparent waterproof dressing - Google Patents
Transparent waterproof dressing Download PDFInfo
- Publication number
- CN111467135A CN111467135A CN201910062211.0A CN201910062211A CN111467135A CN 111467135 A CN111467135 A CN 111467135A CN 201910062211 A CN201910062211 A CN 201910062211A CN 111467135 A CN111467135 A CN 111467135A
- Authority
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- China
- Prior art keywords
- wound
- dressing
- foam pad
- transparent waterproof
- porous foam
- 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.)
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Links
- 206010052428 Wound Diseases 0.000 claims abstract description 36
- 208000027418 Wounds and injury Diseases 0.000 claims abstract description 34
- 239000006260 foam Substances 0.000 claims abstract description 15
- 210000000416 exudates and transudate Anatomy 0.000 claims abstract description 5
- 238000013461 design Methods 0.000 claims abstract description 4
- 239000013543 active substance Substances 0.000 claims description 6
- 239000003522 acrylic cement Substances 0.000 claims description 5
- 230000000844 anti-bacterial effect Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000003385 bacteriostatic effect Effects 0.000 claims description 3
- 230000029663 wound healing Effects 0.000 claims description 3
- 208000034693 Laceration Diseases 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 241000894006 Bacteria Species 0.000 abstract description 2
- 208000035874 Excoriation Diseases 0.000 abstract description 2
- 206010053615 Thermal burn Diseases 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000001154 acute effect Effects 0.000 abstract description 2
- 230000002980 postoperative effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000000576 coating method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 229920006264 polyurethane film Polymers 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 210000004243 sweat Anatomy 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 229920000544 Gore-Tex Polymers 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- -1 Polytetrafluoroethylene Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006030 multiblock copolymer Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- VPRUMANMDWQMNF-UHFFFAOYSA-N phenylethane boronic acid Chemical compound OB(O)CCC1=CC=CC=C1 VPRUMANMDWQMNF-UHFFFAOYSA-N 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive plasters or dressings
- A61F13/0203—Adhesive plasters or dressings having a fluid handling member
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/00051—Accessories for dressings
- A61F13/00063—Accessories for dressings comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic
-
- A61F13/01017—
-
- A61F13/01029—
-
- A61F13/01046—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive plasters or dressings
- A61F13/0246—Adhesive plasters or dressings characterised by the skin adhering layer
- A61F13/0253—Adhesive plasters or dressings characterised by the skin adhering layer characterized by the adhesive material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/425—Porous materials, e.g. foams or sponges
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/58—Adhesives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Materials Engineering (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Dermatology (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention provides a transparent waterproof dressing which consists of a wound contact layer, a porous foam pad and a breathable film. The breathable film can prevent liquid and bacteria from permeating and prevent the wound from being polluted by the outside; the mesh design of the porous foam pad enables the wound position and the skin around the wound position to be directly checked without changing the dressing; the surface of the dressing in contact with the wound and skin is coated with an adhesive. For acute wounds with low to moderate levels of exudate such as: application of postoperative wound, small incision, abrasion, laceration or laceration, puncture wound, laceration wound, first degree or shallow second degree burn and scald.
Description
Technical Field
The invention belongs to the technical field of passive medical instruments, and particularly relates to a transparent waterproof dressing.
Background
Since the 20 th 60 s, clothes made of polyvinyl chloride, chloroprene rubber and various synthetic rubber coated fabrics, which are used in severe environment, are widely popular due to the advantages of water resistance, wind resistance and the like. However, they have a great disadvantage that sweat generated by the metabolism of the human body cannot be discharged out of the body in time, so that the human body feels uncomfortable with stuffiness, coldness, wetness and the like. Meanwhile, the accumulated sweat provides living environment for bacteria or fungal spores and the like, so that stains are generated on the surface of the material, and the material is seriously degraded, which is mainly caused by the lack of 'breathability' of the polymer film and the coating. To solve this problem, researchers in various countries have begun to focus on the study of novel waterproof breathable films and coatings. Waterproof breathability (also called waterproof moisture permeability) refers to that polymer films and coatings do not allow liquid such as water drops to permeate through, but ensure free permeation of water vapor, and breathability is characterized by water vapor permeability.
In this field, Gore-Tex produced by Gore corporation in the 70 th century is the most representative of this fieldTMA Polytetrafluoroethylene (PTFE) film laminated composite fabric. However, PTFE is difficult to process by a conventional method, and needs a special process for preparation: the method comprises the steps of firstly preparing a primary membrane by adopting a technology of combining cold pressing and sintering, and then forming a spider-web-shaped microporous membrane by a biaxial stretching process at a high temperature. The membrane has a plurality of nodes, which are connected by a plurality of fine fibrils, and the size of the nodes can vary from 400 microns to less than 1 micron depending on the stretching process. The material has excellent waterproofness and breathability, but the product is expensive due to high processing difficulty and high cost, and is difficult to popularize in application. Therefore, it is necessary to select new substitute materials and simplify the processing process.
To date, PTFE microporous membranes are still the most advanced waterproof breathable film recognized worldwide, and no product has been able to completely replace it. Its commercial and technical success has stimulated a booming search for this class of waterproof breathable functional materials. Scientific researchers in various countries make a great deal of research aiming at the aspects of materials and processing technology, and develop films and coatings which can achieve the excellent waterproof and breathable performance of PTFE microporous films and have low cost.
A widely used material in this field is a multiblock copolymer of the AB type. Such as block copolyether ester (PEE), block copolyether amine (PEBA) and Thermoplastic Polyurethane (TPU). The products meeting different requirements can be designed by adjusting the components and the proportion of the soft segments and the soft segments. Among them, the polyurethane is more excellent.
The Polyurethane (PU) can change the elasticity, hardness, hydrophilicity and the like by adjusting the components and the proportion of the soft segment and the soft segment, and products with different properties can be designed according to the needs. The product has incomparable characteristics, such as unique cohesiveness, elasticity, wettability, flexibility, wear resistance, glossiness and the like, and becomes one of main chemical raw materials for preparing waterproof breathable films and coatings. In the research of polyurethane films and coated articles, the development is rapid in the united states and japan.
In addition, because the polyurethane material also has good biocompatibility, the waterproof breathable polyurethane film and the coating have wider and wider application in the aspect of medical treatment, can be used as wound dressings, medical gloves, medical coverings, surgical gowns, protective clothes and the like, and form a challenging research field.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide a transparent waterproof dressing.
The technical scheme adopted by the invention is as follows: a transparent waterproof dressing comprising: a wound contact layer 1, a porous foam pad 2 and a breathable film 3, wherein the porous foam pad 2 has honeycomb-shaped mesh openings for timely viewing of the wound site and the surface of its surrounding skin without changing dressings; the contact surface of the dressing with the wound and skin is coated with an acrylic adhesive and contains an active substance at the contact surface that promotes wound healing.
Further, the reticular open pores of the porous foam pad 2 are hexagonal and square and have a circular shape.
The active substance has a bactericidal and/or bacteriostatic effect.
The waterproof dressing is elastically deformable as a whole.
The breathable film 3 is made of a hydrophilic polyurethane material which is transparent, malleable, waterproof, antibacterial and permeable to water vapor, and a layer of acrylic adhesive is coated on the polyurethane film. The porous foam pad 2 is made of polyurethane foam and is positioned in the center of the breathable film 3.
The transparent waterproof dressing disclosed by the invention is soft in texture, can be tightly attached to the uneven wound surface of the skin, and can effectively absorb seepage. The reticular design of the porous foam pad has capillary action and can actively suck out wound exudate. The honeycomb water absorption layer enables the skin and the PU dressing to have a water-vapor exchange space, and is beneficial to the emission of water vapor. The surface layer contacting with the wound is an anti-adhesion film to prevent the wound from adhering to the dressing.
Drawings
The invention is further described below with reference to the figures and examples.
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
Detailed Description
The invention will be described in detail below with reference to the accompanying drawings, as shown in fig. 1 and 2: the transparent waterproof dressing comprises a wound contact layer 1, a porous foam pad 2 and a breathable film 3, wherein the porous foam pad 2 is provided with honeycomb-shaped reticular open pores for timely checking a wound part and the surface of the peripheral skin of the wound part without changing the dressing; the contact surface of the dressing with the wound and skin is coated with an acrylic adhesive and contains an active substance at the contact surface that promotes wound healing.
Wherein, the reticular open pores of the porous foam pad 2 are hexagonal, square, round or other shapes; the active substance in the wound base layer has a sterilizing and/or bacteriostatic effect so as to promote the healing of the wound; the whole waterproof dressing can elastically deform and is tightly attached to wounds of different parts of a body; the net-shaped design of the porous foam pad has capillary action and can actively suck out wound exudate.
The transparent waterproof dressing is suitable for the application of the following acute wounds with low to medium seepage levels: postoperative wound, small incision, abrasion, laceration or laceration, puncture wound, laceration wound, first degree or shallow second degree burn and scald. The product consists of three layers of structures, including a latticed antibacterial waterproof breathable film coated with acrylic glue, a central liquid seepage absorption pad and an independent wound contact layer. The film is made of transparent, malleable, waterproof, antibacterial and water vapor permeable hydrophilic polyurethane material, and a layer of acrylic adhesive is coated on the polyurethane film. The exudate absorption pad is a polyurethane foam pad which is positioned in the center of the surface of the adhesive, and the polyurethane foam absorption pad with a grid structure can enable the wound to be visible. The absorbent pad and the wound contact layer are compounded together, and the surface of the adhesive is protected by anti-sticking coated paper.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (5)
1. A transparent waterproof dressing comprising: a wound contact layer (1), a porous foam pad (2) and a breathable film (3), wherein the porous foam pad (2) has honeycomb-shaped mesh openings for timely viewing of the wound site and the surface of its surrounding skin without changing the dressing; the contact surface of the dressing with the wound and skin is coated with an acrylic adhesive and contains an active substance at the contact surface that promotes wound healing.
2. The transparent waterproof dressing according to claim 1, the reticulated open cells of the porous foam pad (2) being hexagonal, square or circular.
3. A transparent waterproof dressing according to claim 1, the active substance having a bactericidal and/or bacteriostatic effect.
4. A transparent waterproof dressing according to claim 1, which is resiliently deformable in its entirety.
5. The transparent waterproof dressing according to claim 1, the reticulated design of the porous foam pad (2) having a capillary action for actively sucking out wound exudate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910062211.0A CN111467135A (en) | 2019-01-23 | 2019-01-23 | Transparent waterproof dressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910062211.0A CN111467135A (en) | 2019-01-23 | 2019-01-23 | Transparent waterproof dressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111467135A true CN111467135A (en) | 2020-07-31 |
Family
ID=71743531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910062211.0A Withdrawn CN111467135A (en) | 2019-01-23 | 2019-01-23 | Transparent waterproof dressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111467135A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113616421A (en) * | 2021-09-09 | 2021-11-09 | 陈国军 | Application for preventing incontinent dermatitis |
-
2019
- 2019-01-23 CN CN201910062211.0A patent/CN111467135A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113616421A (en) * | 2021-09-09 | 2021-11-09 | 陈国军 | Application for preventing incontinent dermatitis |
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| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200731 |
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| WW01 | Invention patent application withdrawn after publication |