CN204562570U - A kind of negative pressure wound therapy dressing - Google Patents
A kind of negative pressure wound therapy dressing Download PDFInfo
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- CN204562570U CN204562570U CN201520100482.8U CN201520100482U CN204562570U CN 204562570 U CN204562570 U CN 204562570U CN 201520100482 U CN201520100482 U CN 201520100482U CN 204562570 U CN204562570 U CN 204562570U
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- negative pressure
- wound
- transport layer
- wound therapy
- therapy dressing
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Abstract
This utility model embodiment provides a kind of negative pressure wound therapy dressing, comprise: for covering on wound for transmitting the transport layer of wound fluid, cover described transport layer and sealant for wound and extraneous air being isolated, be arranged at described sealant for connecting the negative port of negative pressure source, be communicated with described negative port and be arranged at for providing the drainage tube of the negative pressure of aspirating described wound fluid in described transport layer, described drainage tube is provided with projection.Arranged by the projection of drainage tube in this utility model embodiment, the space being beneficial to negative pressure and penetrating can be formed in transport layer, be more conducive to provide uniform suction force, make negative pressure treatment better effects if.
Description
Technical field
This utility model relates to field of medical device, particularly relates to a kind of negative pressure wound therapy dressing.
Background technology
Negative pressure wound therapy (Negative Pressure Wound Therapy, NPWT) is the trauma care mode of the advanced person that development in recent years is got up.It mainly by applying lower negative pressure (general-55mmHg to 175mmHg) to wound, promotes the healing of wound surface.Particularly, vacuum suction acts on cell membrane, can make it expansion, distortion, cell just thinks damage, and the information of conduction impairment, to nucleus, is changed by signal, heal before causing emiocytosis somatomedin, comprises the vascular proliferation factor, thus stimulate tissue to produce more new vessels; In addition, vacuum suction siphons away transudate from wound surface, helps to set up wound bed fluid balance; And can reach a moistening environment is provided, remove slough, reduce the bacterial number (because antibacterial not easily survives under negative pressure) of wound surface, alleviate the effect of edema (i.e. extracellular fluid/intercellular fluid); Secondly, when captivation acts on dressing, air is sucked away, and dressing is with regard to collapses down and compressing acts on wound surface uniformly, and this pressure can resist the excessive of the wound surface caused and ooze out.Therefore negative pressure wound therapy technology can be used for Patients with Big Area Burn, can avoid patient being made to lose too much plasma protein because a large amount of wound surface oozes out by this technology, reduce the probability that hypovolemic shock occurs for it.
As shown in Figure 1, be the structural representation of existing a kind of negative pressure wound treating system 10.It comprises: Wound treatment apparatus 9 and dressing 8.Wherein, wound external member 8 for wound closure, the negative wound pressure space of Wound treatment apparatus 9 for createing.Specifically, negative pressure wound treating system 10 comprises the parts such as controller 7, negative pressure pump 6, liquid-collecting bottle 5, outside trachea 4, and wherein, the pressure of negative pressure pump 6 is controlled by controller 7, is provided with liquid-collecting bottle 5 between the pipeline 4 be connected between negative pressure pump 6 with wound 1.Wherein, dressing 8 specifically comprises froth bed 2, drainage tube 4 and sealing pad pasting 3, applying negative pressure, making dressing 8 cover on patient wound, promoting wound circumference blood circulation, accelerating the healing of wound by starting negative pressure pump 6 to patient wound.In dressing of the prior art, drainage tube is laid in froth bed, is provided the negative pressure of suction wound transudate by the hole that drainage tube is arranged.Hole due to drainage tube is the mode of tiling, and therefore, negative pressure can not be goed deep into being distributed to equably in froth bed.
Utility model content
This utility model embodiment technical problem to be solved is, provide a kind of can provide suction force evenly negative pressure wound therapy dressing.
In order to solve the problems of the technologies described above, this utility model embodiment provides a kind of negative pressure wound therapy dressing, comprise: for covering on wound for transmitting the transport layer of wound fluid, cover described transport layer and sealant for wound and extraneous air being isolated, be arranged at described sealant for connecting the negative port of negative pressure source, be communicated with described negative port and be arranged at for providing the drainage tube of the negative pressure of aspirating described wound fluid in described transport layer, described drainage tube is provided with projection.
Further, be arranged between described transport layer and described sealant for absorbing and keeping in the absorbed layer of described wound fluid.
Further, described projection is provided with auxiliary air vent.
Further, described pore is mesh structural porous.
Further, described projection is taper, hemispherical or cylindric.
Further, described transport layer is porous material.
Further, described drainage tube extends in described absorbed layer.
Further, described absorbed layer is absorbent material.
Implement this utility model embodiment, there is following beneficial effect:
Arranged by the projection of drainage tube in this utility model embodiment, the space being beneficial to negative pressure and penetrating can be formed in transport layer, be more conducive to provide uniform suction force, make negative pressure treatment better effects if.
Accompanying drawing explanation
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, the accompanying drawing obtaining other according to these accompanying drawings still belongs to category of the present utility model.
Fig. 1 is the structural representation of existing a kind of negative pressure wound therapy instrument.
The structural representation of the first embodiment of the negative pressure wound therapy dressing that Fig. 2 A provides for this utility model embodiment.
The structural representation of the second embodiment of the negative pressure wound therapy dressing that Fig. 2 B provides for this utility model embodiment.
The structural representation of the 3rd embodiment of the negative pressure wound therapy dressing that Fig. 2 C provides for this utility model embodiment.
Fig. 3 A and Fig. 3 B is the structural representation of projection shown in Fig. 2 A.
The structural representation of the 4th embodiment of the negative pressure wound therapy dressing that Fig. 4 this utility model embodiment provides.
Detailed description of the invention
The explanation of following embodiment is with reference to accompanying drawing, can in order to the specific embodiment implemented in order to formula example this utility model.The direction term that this utility model is mentioned, such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side " etc., be only the direction with reference to annexed drawings.Therefore, the direction term of use is in order to illustrate and to understand this utility model, and is not used to limit this utility model.
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, this utility model is described in further detail.
The structural representation of three embodiments of the negative pressure wound therapy dressing that this utility model embodiment as seen in figs. 2a-2c provides, wherein negative pressure wound therapy dressing comprises: transport layer 110, the sealant 120 covered in transport layer 110, the negative port 130 be arranged on sealant 120, be communicated with negative port 130 and be arranged at the drainage tube 140 in transport layer 110, this drainage tube 140 arranges some projections 150.Wherein, transport layer 110 is for covering on wound for transmitting wound fluid; Sealant 120 covers transport layer 110 and for wound and extraneous air being isolated, described sealant 120 is provided with the negative port 130 for connecting negative pressure source; Drainage tube 140 is communicated with negative port 130 and is arranged in transport layer 110, and for providing the negative pressure of suction wound transudate, drainage tube 140 is provided with projection 150 and main pore 161.
Further, except being the conoid protuberance 150 shown in Fig. 2 A, can also be other shapes, such as, hemispherical projection 151 described in Fig. 2 B or the cylindrical protrusion shown in Fig. 2 C 152.See the schematic diagram that Fig. 3 A, Fig. 3 A is pyramidal projections 150, projection 150 is provided with auxiliary air vent 161; See the schematic diagram that Fig. 3 B, Fig. 3 B is pyramidal projections 150, projection 150 is provided with netted pore 162.
Transport layer 110 generally directly overlays on wound, or between wound, be also provided with medicine or point auxiliary layer utilized.Transport layer 110 is porous material, such as open celled foam, knitting or braiding space fabric or non-woven fabric etc..Transport layer 110 allows fluid (comprising liquids and gases) transmit from wound location and pass through drainage tube 140, is entered in the liquid collector of negative pressure treatment systems by negative port 130.Particularly, the negative pressure that the air channel that the loose structure of transport layer 110 guarantees to maintain opening provides to be communicated with drainage tube 140, keeps open under the setting negative pressure that this transport layer applies during negative pressure wound therapy.
See the schematic diagram that Fig. 3 A-3B, Fig. 3 A-3B is pyramidal projections 150, projection 150 is more embedded in transport layer 110, by the auxiliary air vent 161 in projection 150 or netted pore 162, makes whole wound location obtain more balanced negative pressure.Layer 105 is formed by the material with three dimensional structure, and it can comprise open celled foam, knitting or weave space fabric (such as polyester knitted by Baltex7970 latitude) or non-woven fabric.
Suitably, in order to improve the liquid flow (wound fluid) through transport layer 110, process transport layer 110 with the hydrophilic ability foreign body that may affect transport layer produced in production process before removing with Dry Cleaners, such as mineral oil, wax etc.In addition, in order to be beneficial to the recovery of wound, antibacterial, cytoactive reinforcing agent or other drug can also be added in transport layer 110.
See Fig. 4, the structural representation of the 4th embodiment of the negative pressure wound therapy dressing that Fig. 4 provides for this utility model embodiment, between dressing transport layer 110 also and sealant 120, an absorbed layer 170 is also set, for absorbing and keeping in wound fluid, for the wound that some exudate is more, owing to treating the setting of negative pressure, can not in time by the liquid collector of a wound fluid suction negative pressure treatment systems, can be provided with and temporarily can absorb and store the absorbed layer 170 of wound fluid.Absorbed layer 170 adopts absorbent material, and can be foam or non-woven natural or synthetic material, absorbing material defines the reservoir for fluid (especially wound fluid).Originally be in embodiment, drainage tube 140 extends in absorbed layer 170, and when the transudate of wound is less, the wound fluid that absorbed layer 170 is kept in can flow to liquid collector by the drainage tube 140 extended therein.
Implement this utility model embodiment, there is following beneficial effect: arranged by the projection of drainage tube in this utility model embodiment, the space being beneficial to negative pressure and penetrating can be formed in transport layer, be more conducive to provide uniform suction force, make negative pressure treatment better effects if.
Above disclosedly be only a kind of preferred embodiment of this utility model, certainly can not limit the interest field of this utility model with this, therefore according to the equivalent variations that this utility model claim is done, still belong to the scope that this utility model is contained.
Claims (8)
1. a negative pressure wound therapy dressing, it is characterized in that, comprise: for covering on wound for transmitting the transport layer of wound fluid, cover described transport layer and sealant for wound and extraneous air being isolated, be arranged at described sealant for connecting the negative port of negative pressure source, be communicated with described negative port and be arranged at for providing the drainage tube of the negative pressure of aspirating described wound fluid in described transport layer, described drainage tube is provided with projection.
2. negative pressure wound therapy dressing as claimed in claim 1, is characterized in that, also comprises and being arranged between described transport layer and described sealant for absorbing and keeping in the absorbed layer of described wound fluid.
3. negative pressure wound therapy dressing as claimed in claim 1, is characterized in that, described projection is provided with auxiliary air vent.
4. negative pressure wound therapy dressing as claimed in claim 3, it is characterized in that, described pore is mesh structural porous.
5. negative pressure wound therapy dressing as claimed in claim 1, is characterized in that, described projection is taper, hemispherical or cylindric.
6. negative pressure wound therapy dressing as claimed in claim 1, it is characterized in that, described transport layer is porous material.
7. negative pressure wound therapy dressing as claimed in claim 2, it is characterized in that, described drainage tube extends in described absorbed layer.
8. negative pressure wound therapy dressing as claimed in claim 2, it is characterized in that, described absorbed layer is absorbent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100482.8U CN204562570U (en) | 2015-02-12 | 2015-02-12 | A kind of negative pressure wound therapy dressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100482.8U CN204562570U (en) | 2015-02-12 | 2015-02-12 | A kind of negative pressure wound therapy dressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204562570U true CN204562570U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520100482.8U Expired - Fee Related CN204562570U (en) | 2015-02-12 | 2015-02-12 | A kind of negative pressure wound therapy dressing |
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| CN (1) | CN204562570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644332A (en) * | 2015-02-12 | 2015-05-27 | 昆山韦睿医疗科技有限公司 | Dressing for negative pressure wound therapy |
-
2015
- 2015-02-12 CN CN201520100482.8U patent/CN204562570U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644332A (en) * | 2015-02-12 | 2015-05-27 | 昆山韦睿医疗科技有限公司 | Dressing for negative pressure wound therapy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20200212 |