CN107361918B - Negative pressure drainage material capable of applying direct current electric field - Google Patents
Negative pressure drainage material capable of applying direct current electric field Download PDFInfo
- Publication number
- CN107361918B CN107361918B CN201710651706.8A CN201710651706A CN107361918B CN 107361918 B CN107361918 B CN 107361918B CN 201710651706 A CN201710651706 A CN 201710651706A CN 107361918 B CN107361918 B CN 107361918B
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- foam dressing
- dressing
- electric field
- wound surface
- direct current
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- 230000005684 electric field Effects 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 title claims abstract description 14
- 239000006260 foam Substances 0.000 claims abstract description 52
- 239000002313 adhesive film Substances 0.000 claims abstract description 24
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 14
- 239000004917 carbon fiber Substances 0.000 claims description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 230000037311 normal skin Effects 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 239000011496 polyurethane foam Substances 0.000 claims description 2
- 230000037314 wound repair Effects 0.000 abstract description 2
- 239000007773 negative electrode material Substances 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 206010052428 Wound Diseases 0.000 description 37
- 208000027418 Wounds and injury Diseases 0.000 description 37
- 238000005516 engineering process Methods 0.000 description 6
- 210000003491 skin Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000017423 tissue regeneration Effects 0.000 description 3
- 206010072170 Skin wound Diseases 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010016326 Feeling cold Diseases 0.000 description 1
- 208000004221 Multiple Trauma Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 210000001339 epidermal cell Anatomy 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000010410 reperfusion Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000036560 skin regeneration Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
Images
Classifications
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- A61F13/05—
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- A61F13/01029—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/20—Applying electric currents by contact electrodes continuous direct currents
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses a negative pressure drainage material capable of applying a direct current electric field, which comprises a sandwich-like foam dressing, a biocompatible transparent film I, a positive electrode paster and a negative electrode paster, wherein the sandwich-like foam dressing is coated with a negative electrode material; "sandwich" like foam dressing: the wound surface drainage device comprises a negative electrode foam dressing, an insulating foam dressing and a positive electrode foam dressing, wherein the negative electrode foam dressing, the insulating foam dressing and the positive electrode foam dressing form a transverse sandwich-like structure, and can provide a directional direct current electric field for a wound surface under the condition of an external power supply and simultaneously have a drainage function; the first biocompatible transparent adhesive film: the dressing and the skin around the wound are adhered to provide a closed environment for the wound surface; positive and negative electrode paster: used for connecting an external power supply. The positive patch is attached to the positive foam dressing, and the negative patch is attached to the negative foam dressing. Through special design, the dressing can be used for wound negative pressure drainage, and meanwhile, a continuous or pulse directional direct current electric field is provided for the wound under the condition of an external direct current power supply, so that organic cooperation of promoting wound repair by negative pressure and the electric field can be realized.
Description
Technical Field
The invention relates to the technical field of wound surface electric field treatment and negative pressure drainage devices, in particular to a negative pressure drainage material capable of applying a direct current electric field.
Background
The skin is the largest organ of the human body and mainly plays a role in protecting the body, perspiring, feeling cold, heat and pressure and the like. The skin covers the whole body, the most common wounds are skin soft tissue multiple wounds and compound wounds, and different conditions of skin wounds can be caused by different wound areas, different wound depths and different wound reasons. If the treatment is not timely and reasonable, the problems of serious infection, blood supply disorder, scar healing difficulty and the like are easily caused, and the appearance and the function rehabilitation are seriously influenced.
The negative pressure drainage technology is widely applied to the field of skin wound repair at home and abroad. For example, the application of the negative pressure drainage technology to acute burn can obviously increase the tissue blood flow reperfusion of the wound; the negative pressure drainage technology is applied to the wound surface after skin transplantation, so that the skin regeneration can be promoted and the epithelization can be accelerated; the negative pressure drainage technology is applied to the biological materials of certain dermal layer substitutes, so that the regeneration of blood vessels can be obviously accelerated;
the exogenous direct current electric field has important promotion effect on a plurality of key links of tissue repair such as wound surface epidermal cell crawling, periwound nerve growth and the like. However, due to the inconvenience and difficulty in selecting and fixing the operation layer surface such as the anode and cathode materials, which are caused by applying an exogenous direct current electric field on the wound surface for a long time, the technology has not been subjected to effective clinical transformation.
Disclosure of Invention
In view of the above, the present invention provides a negative pressure drainage material capable of applying a dc electric field.
The purpose of the invention is realized by the following technical scheme: a negative pressure drainage material capable of applying a direct current electric field comprises a sandwich-like foam dressing, a biocompatible transparent adhesive film I, a positive electrode patch and a negative electrode patch;
"sandwich" like foam dressing: the wound surface drainage device can apply a directional direct current electric field to a wound surface and provide a drainage function under the conditions of an external direct current power supply and negative pressure, and comprises a negative electrode foam dressing which is placed in the center of the wound surface and has a conductive performance, insulating foam dressings which surround the periphery of the negative electrode carbon fiber foam dressing and are placed at the rest parts of the wound surface, and a positive electrode foam dressing which surrounds the periphery of the insulating foam dressing and is placed on normal skin around the wound surface, wherein the three forms a transverse sandwich-like structure;
the first biocompatible transparent adhesive film: the dressing and the normal skin around the wound are adhered to provide a closed environment for the wound surface, so that the negative pressure drainage technology is implemented;
positive and negative electrode paster: the negative electrode patch is used for connecting an external power supply for the positive electrode dressing and the negative electrode dressing, the positive electrode patch is connected with the positive electrode foam dressing, and the negative electrode patch is connected with the negative electrode foam dressing.
Further, the anode foam dressing and the cathode foam dressing are carbon fiber foam dressings, and the insulating foam dressing is polyurethane foam dressing.
Furthermore, the first biocompatible transparent adhesive film is a viscous biological polyurethane semi-permeable film.
Further, the positive and negative electrode patches: comprises a second biocompatible transparent adhesive film, a conductive patch and a plug. The conductive patch is positioned in the center of the second biocompatible transparent adhesive film and connected with the plug through a wire.
The invention has the advantages that:
1. through special design, a piece of drainage material can be used for negative pressure drainage of the wound surface, and meanwhile, the positive and negative electrode dressings can provide a continuous or pulse directional direct current electric field for the wound surface under the condition of an external direct current power supply. That is, one piece of material serves two functions.
2. By utilizing the material, the organic synergy of the negative pressure drainage and the electric field tissue repair promotion effect can be realized, namely: the negative pressure drainage function is adopted to reduce infection, promote granulation growth and provide a good healing environment for the wound surface; the migration of the periwound epidermis on the wound surface and the growth of nerves are promoted through the directional direct current electric field, so that the efficiency and the quality of tissue repair are improved.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a diagram of a structure of a negative pressure drainage material capable of applying a DC electric field;
FIG. 2 is a view of the structure of a "sandwich" like foam dressing;
FIG. 3 is a schematic diagram of the positive and negative electrode patches;
fig. 4 is a structural diagram of the first biocompatible transparent adhesive film.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings; it should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.
As shown in FIG. 1, the negative pressure drainage material capable of applying a DC electric field is composed of 3 parts, and the structures of the parts are respectively described by the following 3 figures. In figure 2 is a "sandwich" like foam dressing; in the figure, 3 are positive and negative patches. Fig. 4 is a biocompatible transparent adhesive film.
As shown in fig. 2, the "sandwich" like foam dressing comprises a negative carbon fiber foam dressing 4 with conductive properties placed in the center of the wound, a polyurethane insulating foam dressing 5 surrounding the negative carbon fiber foam dressing and placed in the rest of the wound, and a positive carbon fiber foam dressing 3 surrounding the polyurethane insulating foam dressing and placed in the normal skin around the wound. In order to meet the requirements of wound surfaces with different shapes and sizes, three components of the sandwich-like foam dressing can be cut into proper shapes respectively, so that synchronous implementation of closed negative pressure drainage and exogenous electric field application is facilitated.
As shown in fig. 3, are positive and negative patches. The middle of the positive electrode patch and the negative electrode patch is provided with an adhesive patch 7 with conductive performance, the patch is provided with a section of lead 8 connected with a plug 9, and the periphery of the patch is provided with a biocompatible transparent adhesive film II 6. The positive electrode patch and the negative electrode patch are respectively adhered to the positive electrode carbon fiber foam dressing and the negative electrode carbon fiber foam dressing, and the biocompatible transparent adhesive film II 6 around the patches has a sealing effect, so that negative pressure drainage can be implemented; meanwhile, after the positive and negative patches are connected with a direct-current power supply, a direct-current electric field is applied to the wound surface possibly through the mediation of the conductive dressing.
As shown in fig. 4, is a biocompatible transparent adhesive film one 2. The first biocompatible transparent adhesive film is a viscous biological polyurethane semipermeable membrane, allows water drops, water vapor and other gases to pass through in one direction, has good biocompatibility, and provides a closed environment for the wound surface by adhering dressing and wound-surrounding normal skin.
When the invention is used, the following use steps can be adopted.
1. After the wound surface is cleaned, debrided and stopped bleeding, the skin around the wound margin is wiped clean with sterile gauze.
2. According to the shape and size of the wound surface of a patient, cutting a proper sandwich-like foam dressing, preferably slightly larger than the wound surface of the patient, covering the center of the wound surface with a negative carbon fiber foam dressing, covering the rest wound surfaces with a polyurethane insulation dressing, and covering the normal skin of the wound edge with a positive carbon fiber dressing.
3. After the sandwich-like foam dressing is placed, a suitable biocompatible transparent adhesive film is cut to cover the entire sandwich-like foam dressing and a portion of normal skin, so that a closed environment is formed.
4. After the biocompatible transparent adhesive film is adhered, a small opening is cut on the adhesive film on the polyurethane insulating dressing, the sucker type drainage tube with the conducting function is attached to the adhesive film, the adhesive film is used for sealing, and negative pressure drainage can be formed under the action of external negative pressure. Cutting off a small opening on each of the adhesive films on the positive and negative carbon fiber dressings, adhering the positive and negative patches, and sealing the periphery by using the adhesive films. The lead plugs of the positive and negative patches are connected with an exogenous direct current power supply, so that a continuous direct current electric field can be provided for the wound surface. So far, the purposes of wound surface negative pressure drainage and direct current electric field application are synchronously realized through one dressing.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (3)
1. The negative pressure drainage material capable of applying the direct current electric field is characterized in that: comprises a sandwich-like foam dressing (1), a biocompatible transparent adhesive film I (2), and positive and negative patches (11);
"sandwich" -like foam dressing (1): the wound surface drainage device can provide a directional electric field for a wound surface under the condition of an external power supply, and simultaneously has the function of wound surface drainage, and comprises a negative electrode foam dressing (4) which is placed in the center of the wound surface and has conductive performance, an insulating foam dressing (5) which surrounds the periphery of the negative electrode carbon fiber foam dressing and is placed at the rest parts of the wound surface, and a positive electrode foam dressing (3) which surrounds the periphery of the insulating foam dressing and is placed on normal skin around the wound surface, wherein the three parts form a transverse sandwich-like structure;
biocompatible transparent adhesive film one (2): the dressing and the normal skin around the wound are adhered to provide a closed environment for the wound surface, so that negative pressure drainage can be implemented;
positive and negative electrode patches (11): is used for connecting an external power supply; the conductive patch (7) is located in the center of the biocompatible transparent adhesive film II (6) and is connected with the plug (9) through a wire (8), the positive electrode patch (11) and the negative electrode patch (11) are respectively adhered to the positive electrode carbon fiber foam dressing and the negative electrode carbon fiber foam dressing, and the biocompatible transparent adhesive film II (6) on the periphery of the conductive patch (7) has a sealing effect.
2. The negative pressure drainage material capable of applying the direct current electric field according to claim 1, wherein: the anode foam dressing (3) and the cathode foam dressing (4) are carbon fiber foam dressings, and the insulating foam dressing (5) is a polyurethane foam dressing.
3. The negative pressure drainage material capable of applying the direct current electric field according to claim 1, wherein: the first biocompatible transparent adhesive film (2) is a viscous biological polyurethane semipermeable membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710651706.8A CN107361918B (en) | 2017-08-02 | 2017-08-02 | Negative pressure drainage material capable of applying direct current electric field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710651706.8A CN107361918B (en) | 2017-08-02 | 2017-08-02 | Negative pressure drainage material capable of applying direct current electric field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107361918A CN107361918A (en) | 2017-11-21 |
| CN107361918B true CN107361918B (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710651706.8A Active CN107361918B (en) | 2017-08-02 | 2017-08-02 | Negative pressure drainage material capable of applying direct current electric field |
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| Country | Link |
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| CN (1) | CN107361918B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469518B (en) * | 2022-01-27 | 2023-02-21 | 长沙海润生物技术有限公司 | Dressing for negative-voltage electric field coupling strong-oxygen therapy |
| CN114712087A (en) * | 2022-02-25 | 2022-07-08 | 长沙海润生物技术有限公司 | Antibacterial dressing capable of generating directional electric field and preparation method thereof |
| CN114712089B (en) * | 2022-04-25 | 2023-04-07 | 长沙海润生物技术有限公司 | Wound surface dressing for negative-pressure coupling electric field and constant-temperature treatment |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001032114A1 (en) * | 1999-11-02 | 2001-05-10 | Wizcare Ltd. | Skin-gripper |
| US8574278B2 (en) * | 2006-05-09 | 2013-11-05 | Thermotek, Inc. | Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation |
| EP2358425B1 (en) * | 2008-11-25 | 2014-11-12 | Spiracur Inc. | Device for delivery of reduced pressure to body surfaces |
| CN101991484B (en) * | 2010-11-04 | 2013-06-05 | 龙丹 | Wound pain quick recovery application instrument |
| CA2841160C (en) * | 2011-07-08 | 2017-09-26 | The Cleveland Clinic Foundation | System and method for wound healing |
| ES2677469T3 (en) * | 2012-07-24 | 2018-08-02 | Avery Dennison Corporation | Hybrid silicone / acrylic adhesives |
| CA2910577C (en) * | 2013-05-02 | 2023-03-21 | Vomaris Innovations, Inc. | Methods and devices for cellular activation |
| CN204468442U (en) * | 2015-02-26 | 2015-07-15 | 陕西众邦药业科技有限公司 | The special postoperative wound magnetic therapy applying plaster of a kind of drainage tube |
| TWI581771B (en) * | 2015-04-14 | 2017-05-11 | 財團法人紡織產業綜合研究所 | Wound care dressing |
| EP3117807A1 (en) * | 2015-07-16 | 2017-01-18 | Carag AG | Multifunctional wound treatment dressing |
| CN205126951U (en) * | 2015-10-19 | 2016-04-06 | 重庆腾跃医疗器械有限公司 | Clear machine of creating with negative pressure drainage tray |
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- 2017-08-02 CN CN201710651706.8A patent/CN107361918B/en active Active
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| CN107361918A (en) | 2017-11-21 |
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