CN203408163U - Novel compound foam material negative-pressure absorption device - Google Patents
Novel compound foam material negative-pressure absorption device Download PDFInfo
- Publication number
- CN203408163U CN203408163U CN201320496311.2U CN201320496311U CN203408163U CN 203408163 U CN203408163 U CN 203408163U CN 201320496311 U CN201320496311 U CN 201320496311U CN 203408163 U CN203408163 U CN 203408163U
- Authority
- CN
- China
- Prior art keywords
- sponge layer
- foam material
- drainage tube
- water suction
- pva water
- 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 - Lifetime
Links
- 239000006261 foam material Substances 0.000 title abstract description 18
- 238000010521 absorption reaction Methods 0.000 title abstract 8
- 150000001875 compounds Chemical class 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims description 40
- 239000002131 composite material Substances 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract description 40
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract description 40
- 230000000694 effects Effects 0.000 abstract description 8
- 230000017105 transposition Effects 0.000 abstract description 3
- 229940068984 polyvinyl alcohol Drugs 0.000 abstract 7
- 235000019422 polyvinyl alcohol Nutrition 0.000 abstract 7
- 239000011148 porous material Substances 0.000 abstract 2
- 230000000740 bleeding effect Effects 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 description 21
- 230000003115 biocidal effect Effects 0.000 description 7
- 208000005156 Dehydration Diseases 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 208000032843 Hemorrhage Diseases 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 4
- 239000003429 antifungal agent Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 3
- 230000000699 topical effect Effects 0.000 description 3
- 206010053692 Wound complication Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 239000003106 tissue adhesive Substances 0.000 description 2
- 206010066901 Treatment failure Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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- Materials For Medical Uses (AREA)
Abstract
The utility model discloses a novel compound foam material negative-pressure absorption device which comprises a PVA (Poly Vinyl Alcohol) water absorption foam material layer, wherein a negative-pressure drainage tube is arranged at the upper end surface of the PVA water absorption foam material layer; a softened foam material layer is arranged below the PVA water absorption foam material layer; the PVA water absorption foam material layer and the softened foam material layer are fixedly connected through an adhesion surface; three-dimensional intercommunication micropores are formed in the adhesion surface; due to the three-dimensional intercommunication micropores, a three-dimensional net pore structure of the softened foam material layer is communicated with a three-dimensional net pore space structure of the PVA water absorption foam material layer. The softened foam material layer is not adhered to a wound surface after being put on the wound surface for a long time, and the bleeding is prevented when the softened foam material layer is revealed, so that the clinical applicability is greatly widened, and the success rate of the application to skin-grafting, transposition of flap and the like is greatly improved; after the softened foam material layer is kept soft after being dehydrated and dried, so that the problems that a conventional PVA water absorption foam material layer is hardened after being dehydrated and dried, the hardened foam material has side effect when pressing tissues and the wound surfaces, and the negative-pressure treatment is disabled are solved.
Description
Technical field
This utility model relates to a kind of NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment.
Background technology
It is the critical material of negative pressure treatment that negative pressure is protected wound foamed materials, and its performance directly determines clinical effectiveness and clinical indication scope.Desirable foam performance is as follows: a) negative pressure is protected wound foamed materials and wound surface and placed for a long time adhesion, not hemorrhage while opening material, wound surface is not caused to secondary damage; B) negative pressure protect wound foamed materials can not additional antifungus agent and antibiotic, avoid the side effect such as topical antibiotic; C) negative pressure is protected after wound foamed materials dehydration exsiccation, should keep soft, avoids the side effect of organizing and wound surface compressing causes; D) to protect wound foamed materials elasticity suitable for negative pressure, can effectively conduct negative pressure, can avoid again elasticity to cause too greatly wound pain; E) to protect wound foamed materials absorbent good for negative pressure; F) negative pressure is protected wound foamed materials splendid negative pressure conductive performance, mesh intercommunication and mesh size to fit.
The conventional negative pressure of current clinical ability is protected wound foamed materials and is generally the aquation polyvinyl alcohol foam material (PVA) of one deck or Plant fiber's foamed materials of one deck polyurethane foamed material (PU) or one deck (being generally to process through chemical industry through chalina).
The performance deficiency of aquation polyvinyl alcohol foam material (PVA): a) foamed materials has added antifungus agent and antibiotic outward, like this, prevent that aquation polyvinyl alcohol foam material (PVA) is mouldy, for example, yet the side effect such as topical antibiotic are large: skin blister, violate medical routine and medical instrument management regulation; B) hardening (hardness and Gypsum Fibrosum are suitable) after material dehydration exsiccation, causes negative pressure conduction failure, treatment failure and other side effect of human body.
The defect of polyurethane foamed material (PU) and Plant fiber's foamed materials: a) material and wound surface are placed adhesion for a long time, hemorrhage while opening material, cause wound surface secondary damage; B) material absorbent is not good.
Utility model content
The purpose of this utility model, is to provide a kind of NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment.
The solution that this utility model solves its technical problem is: NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment, it comprises the PVA water suction sponge layer of three-dimensional mesh space structure, the upper surface of described PVA water suction sponge layer is provided with at least one negative-pressure drainage tube, the below of PVA water suction sponge layer arranges the softening sponge layer of three-dimensional mesh space structure, between described PVA water suction sponge layer and softening sponge layer, by adhesive surface, be fixedly connected with, described adhesive surface is provided with three-dimensional intercommunication micropore, described three-dimensional intercommunication micropore makes the three-dimensional mesh space structure of softening sponge layer be communicated with the three-dimensional mesh space structure of PVA water suction sponge layer.
As the further improvement of technique scheme, the area of the Area Ratio PVA of described softening sponge layer water suction sponge layer is large
As the further improvement of technique scheme, the thickness of the Thickness Ratio PVA of described softening sponge layer water suction sponge layer is little.
As the further improvement of technique scheme, the thickness of described softening sponge layer is 1 ~ 2 millimeter, and the thickness of described PVA water suction sponge layer is 2 ~ 5 millimeters.
The beneficial effects of the utility model are: protect wound foamed materials with present negative pressure and compare, have a little following:
1, softening sponge layer and wound surface are placed adhesion for a long time, not hemorrhage while opening softening sponge layer, wound surface are not caused to secondary damage, have greatly widened clinical indication and improved skin-grafting, transposition of flap etc. to be applied to power;
2, during packing, do not need to add antifungus agent and antibiotic, after having avoided at present conventional clinically PVA foamed materials dehydration to become dry, occur that hardness increases (suitable with Gypsum Fibrosum hardness), the problem that the side effect that the foamed materials of hardening causes tissue and wound surface compressing and negative pressure treatment lost efficacy;
3, this utility model belongs to ultra-thin type, and reasonable in design is saved the surgical adhesive membrane time widely;
4, PVA water suction sponge layer absorbent is good, and negative pressure conductive performance is good, mesh intercommunication and mesh size to fit;
5, softening sponge layer elasticity is suitable, can effectively conduct negative pressure, can avoid again elasticity to cause too greatly wound pain.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, this utility model is further described.
Fig. 1 is the middle cutaway view of foamed materials of the present utility model;
Fig. 2 is the structural representation of foamed materials of the present utility model;
Fig. 3 is the first example structure schematic diagram of the present utility model;
Fig. 4 is the first example structure schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, describe application of the present utility model in detail.
With reference to Fig. 1～Fig. 3, NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment, it comprises the PVA water suction sponge layer 1 of three-dimensional mesh space structure, after 1 water suction of PVA water suction sponge layer, expand, the upper surface of described PVA water suction sponge layer 1 is provided with at least one negative-pressure drainage tube, the below of PVA water suction sponge layer 1 arranges the softening sponge layer 2 of three-dimensional mesh space structure, and softening sponge layer 2 can be PVA material, can be also other suitable materials.Softening sponge layer 2 is placed adhesion for a long time with wound surface, not hemorrhage while opening softening sponge layer 2, wound surface is not caused to secondary damage, greatly widened clinical indication and improved skin-grafting, transpositions of flap etc. are applied to power, between described PVA water suction sponge layer 1 and softening sponge layer 2, by adhesive surface 3, be fixedly connected with, described adhesive surface 3 is provided with three-dimensional intercommunication micropore, described three-dimensional intercommunication micropore makes the three-dimensional mesh space structure of softening sponge layer 2 be communicated with the three-dimensional mesh space structure of PVA water suction sponge layer 1, PVA water suction sponge layer 1 absorbent is good, negative pressure conductive performance is good, mesh intercommunication and mesh size to fit.This utility model does not need to add antifungus agent and antibiotic, avoids the side effect such as topical antibiotic; After softening sponge layer 2 dehydrations become dry, keep soft, after at present conventional PVA foamed materials dehydration becomes dry, occur that hardness increases (suitable with Gypsum Fibrosum hardness), the problem that the side effect that the foamed materials of hardening causes tissue and wound surface compressing and negative pressure treatment lost efficacy.
Be further used as preferred embodiment, described drainage tube comprises built-in drainage tube 20 and external drainage tube 30, the front end that described built-in drainage tube 20 is drainage tube, the tube wall of described built-in drainage tube 20 is provided with drain side opening, the front end of described external drainage tube 30 is inserted in the drainage tube joint 70 of built-in drainage tube 20, and the rear end of described external drainage tube 30 is attached to negative pressure source.
Be further used as preferred embodiment, with reference to the embodiment shown in Fig. 4, each built-in drainage tube 20 side all arranges built-in syringe pipe 40, the front end of described built-in syringe pipe 40 is directly placed in PVA water suction sponge layer 1 and is provided with a side surface of drainage tube or through stretching out PVA water suction sponge layer 1 outer surface or side after PVA water suction sponge layer 1, is somebody's turn to do the mode in the time of sewing up as sewing needle through the mode of PVA water suction sponge layer 1.。
Be further used as preferred embodiment, the rear end of described built-in syringe pipe 40 is provided with syringe pipe joint 60, and removable external syringe pipe 50 is also installed on described syringe pipe joint 60.
Be further used as preferred embodiment, the area of the Area Ratio PVA water suction sponge layer 1 of described softening sponge layer 2 is large, like this can be so that wound surface all in softening the coverage of sponge layer 2, makes PVA water suction sponge layer 1 can not directly contact human body.
Be further used as preferred embodiment, the thickness of the Thickness Ratio PVA water suction sponge layer 1 of described softening sponge layer 2 is little.
Be further used as preferred embodiment, the thickness of described softening sponge layer 2 is 1 ~ 2 millimeter, and the thickness of described PVA water suction sponge layer 1 is 2 ~ 5 millimeters, ultra-thin type, and reasonable in design, saves the surgical adhesive membrane time widely.
More than that better embodiment of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to this utility model spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (7)
1. NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment, it is characterized in that: it comprises the PVA water suction sponge layer of three-dimensional mesh space structure, the upper surface of described PVA water suction sponge layer is provided with at least one negative-pressure drainage tube, the below of PVA water suction sponge layer arranges the softening sponge layer of three-dimensional mesh space structure, between described PVA water suction sponge layer and softening sponge layer, by adhesive surface, be fixedly connected with, described adhesive surface is provided with three-dimensional intercommunication micropore, described three-dimensional intercommunication micropore makes the three-dimensional mesh space structure of softening sponge layer be communicated with the three-dimensional mesh space structure of PVA water suction sponge layer.
2. NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment according to claim 1, it is characterized in that: described negative-pressure drainage tube comprises built-in drainage tube and external drainage tube, the front end that described built-in drainage tube is drainage tube, the tube wall of described built-in drainage tube is provided with drain side opening, the front end of described external drainage tube is inserted in the drainage tube joint of built-in drainage tube, and the rear end of described external drainage tube is attached to negative pressure source.
3. NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment according to claim 2, it is characterized in that: each built-in drainage tube side all arranges built-in syringe pipe, the front end of described built-in syringe pipe is directly placed in after PVA water suction sponge layer is provided with a side surface of drainage tube or passes PVA water suction sponge layer and stretches out PVA water suction sponge layer outer surface or side.
4. NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment according to claim 3, is characterized in that: the rear end of described built-in syringe pipe is provided with syringe pipe joint, and removable external syringe pipe is also installed on described syringe pipe joint.
5. NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment according to claim 1, is characterized in that: the area of the Area Ratio PVA water suction sponge layer of described softening sponge layer is large.
6. NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment according to claim 1, is characterized in that: the thickness of the Thickness Ratio PVA water suction sponge layer of described softening sponge layer is little.
7. NEW TYPE OF COMPOSITE foamed materials negative pressure adsorption equipment according to claim 3, is characterized in that: the thickness of described softening sponge layer is 1 ~ 2 millimeter, and the thickness of described PVA water suction sponge layer is 2 ~ 5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496311.2U CN203408163U (en) | 2013-08-14 | 2013-08-14 | Novel compound foam material negative-pressure absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496311.2U CN203408163U (en) | 2013-08-14 | 2013-08-14 | Novel compound foam material negative-pressure absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203408163U true CN203408163U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320496311.2U Expired - Lifetime CN203408163U (en) | 2013-08-14 | 2013-08-14 | Novel compound foam material negative-pressure absorption device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203408163U (en) |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104225768A (en) * | 2014-06-16 | 2014-12-24 | 武汉维斯第医用科技股份有限公司 | Multilayer negative-pressure closed drainage wound protecting device |
| WO2018041805A1 (en) * | 2016-08-30 | 2018-03-08 | Smith & Nephew Plc | Systems for applying reduced pressure therapy |
| US10070994B2 (en) | 2012-05-22 | 2018-09-11 | Smith & Nephew Plc | Apparatuses and methods for wound therapy |
| US10117782B2 (en) | 2012-05-24 | 2018-11-06 | Smith & Nephew, Inc. | Devices and methods for treating and closing wounds with negative pressure |
| US10124098B2 (en) | 2013-03-13 | 2018-11-13 | Smith & Nephew, Inc. | Negative pressure wound closure device and systems and methods of use in treating wounds with negative pressure |
| US10130520B2 (en) | 2012-07-16 | 2018-11-20 | Smith & Nephew, Inc. | Negative pressure wound closure device |
| US10159771B2 (en) | 2013-03-14 | 2018-12-25 | Smith & Nephew Plc | Compressible wound fillers and systems and methods of use in treating wounds with negative pressure |
| US10179073B2 (en) | 2014-01-21 | 2019-01-15 | Smith & Nephew Plc | Wound treatment apparatuses |
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| US10201642B2 (en) | 2014-01-21 | 2019-02-12 | Smith & Nephew Plc | Collapsible dressing for negative pressure wound treatment |
| US10220125B2 (en) | 2012-02-03 | 2019-03-05 | Smith & Nephew Plc | Apparatuses and methods for wound therapy |
| US10405861B2 (en) | 2011-02-04 | 2019-09-10 | University Of Massachusetts | Negative pressure wound closure device |
| US10660992B2 (en) | 2013-10-21 | 2020-05-26 | Smith & Nephew, Inc. | Negative pressure wound closure device |
| US10695472B2 (en) | 2008-03-13 | 2020-06-30 | Smith & Nephew Plc | Vacuum closure device |
| US10702420B2 (en) | 2012-05-22 | 2020-07-07 | Smith & Nephew Plc | Wound closure device |
| US11096832B2 (en) | 2016-09-27 | 2021-08-24 | Smith & Nephew Plc | Wound closure devices with dissolvable portions |
| US11123476B2 (en) | 2017-06-14 | 2021-09-21 | Smith & Nephew, Inc. | Fluid removal management and control of wound closure in wound therapy |
| CN113520720A (en) * | 2021-07-15 | 2021-10-22 | 上海美宝生命科技有限公司 | Closed negative pressure drainage dressing system |
| US11166726B2 (en) | 2011-02-04 | 2021-11-09 | University Of Massachusetts | Negative pressure wound closure device |
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| US11375923B2 (en) | 2017-08-29 | 2022-07-05 | Smith & Nephew Plc | Systems and methods for monitoring wound closure |
| US11395873B2 (en) | 2017-06-14 | 2022-07-26 | Smith & Nephew, Inc. | Control of wound closure and fluid removal management in wound therapy |
| US11439539B2 (en) | 2015-04-29 | 2022-09-13 | University Of Massachusetts | Negative pressure wound closure device |
| US11471586B2 (en) | 2015-12-15 | 2022-10-18 | University Of Massachusetts | Negative pressure wound closure devices and methods |
| US11583623B2 (en) | 2017-06-14 | 2023-02-21 | Smith & Nephew Plc | Collapsible structure for wound closure and method of use |
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| US11617684B2 (en) | 2016-11-02 | 2023-04-04 | Smith & Nephew, Inc. | Wound closure devices |
| US11724020B2 (en) | 2017-06-14 | 2023-08-15 | Smith & Nephew Plc | Collapsible sheet for wound closure and method of use |
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2013
- 2013-08-14 CN CN201320496311.2U patent/CN203408163U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10695472B2 (en) | 2008-03-13 | 2020-06-30 | Smith & Nephew Plc | Vacuum closure device |
| US11166726B2 (en) | 2011-02-04 | 2021-11-09 | University Of Massachusetts | Negative pressure wound closure device |
| US10405861B2 (en) | 2011-02-04 | 2019-09-10 | University Of Massachusetts | Negative pressure wound closure device |
| US10220125B2 (en) | 2012-02-03 | 2019-03-05 | Smith & Nephew Plc | Apparatuses and methods for wound therapy |
| US10070994B2 (en) | 2012-05-22 | 2018-09-11 | Smith & Nephew Plc | Apparatuses and methods for wound therapy |
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| US11241337B2 (en) | 2012-05-24 | 2022-02-08 | Smith & Nephew, Inc. | Devices and methods for treating and closing wounds with negative pressure |
| US10117782B2 (en) | 2012-05-24 | 2018-11-06 | Smith & Nephew, Inc. | Devices and methods for treating and closing wounds with negative pressure |
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| CN104225768A (en) * | 2014-06-16 | 2014-12-24 | 武汉维斯第医用科技股份有限公司 | Multilayer negative-pressure closed drainage wound protecting device |
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| US11395873B2 (en) | 2017-06-14 | 2022-07-26 | Smith & Nephew, Inc. | Control of wound closure and fluid removal management in wound therapy |
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| CN109223483A (en) * | 2018-10-24 | 2019-01-18 | 赵宇辉 | A kind of expanded skin flap blood fortune exerciser and method |
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