WO2018072347A1 - Therapeutic vacuum fluid-locking system - Google Patents

Therapeutic vacuum fluid-locking system Download PDF

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Publication number
WO2018072347A1
WO2018072347A1 PCT/CN2017/070344 CN2017070344W WO2018072347A1 WO 2018072347 A1 WO2018072347 A1 WO 2018072347A1 CN 2017070344 W CN2017070344 W CN 2017070344W WO 2018072347 A1 WO2018072347 A1 WO 2018072347A1
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WO
WIPO (PCT)
Prior art keywords
layer
liquid
material layer
adsorption
compressed
Prior art date
Application number
PCT/CN2017/070344
Other languages
French (fr)
Chinese (zh)
Inventor
朱新生
Original Assignee
广东美捷威通生物科技有限公司
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Publication of WO2018072347A1 publication Critical patent/WO2018072347A1/en

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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 bandages or dressings
    • A61F13/0203—Adhesive bandages or dressings with fluid retention members
    • 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
    • A61F13/01—Non-adhesive bandages or dressings
    • A61F13/01008—Non-adhesive bandages or dressings characterised by the material
    • 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
    • A61F13/01—Non-adhesive bandages or dressings
    • A61F13/01021—Non-adhesive bandages or dressings characterised by the structure of the dressing
    • A61F13/01029—Non-adhesive bandages or dressings characterised by the structure of the dressing made of multiple layers
    • 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
    • A61F13/01—Non-adhesive bandages or dressings
    • A61F13/01034—Non-adhesive bandages or dressings characterised by a property
    • A61F13/01042—Absorbency
    • 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 bandages or dressings
    • A61F13/0246—Adhesive bandages or dressings characterised by the skin-adhering layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12

Definitions

  • the invention relates to a medical device, in particular to a vacuum lock fluid treatment system.
  • the wound is usually protected by a wound patch.
  • the wound sticker is generally a medical polyurethane (PU) wound sticker.
  • the medical polyurethane (PU) wound sticker is made of an imported breathable PU substrate and a composite surface backing substrate, which is cut, sterilized and packaged.
  • Wound stickers can only be used for small pieces of trauma emergency treatment, thus temporarily stopping bleeding and protecting the wound.
  • the time used should not be too long. If it is used too long, the tape on the outer layer of the wound is not breathable. It will make the wound and the skin around the wound white and soft, resulting in secondary infection of the bacteria. This will make the wound worse. It provides good conditions for wound or wound healing only in the absence of exudation of the wound or wound.
  • the sheet-like compressed foam layer in the compressed vacuum system can adsorb the liquid, the sheet-like compressed foam layer cannot lock the liquid, and when the liquid reaches a certain saturation, the force is squeezed. The liquid will re-flow the patient's wound or wound, which will not achieve the desired effect.
  • a vacuum lock liquid treatment system comprising a compressed foam layer, an adhesive film, and a layer of liquid-locking material between the layer of the compressed foam and the layer of compressed foam, After the adhesive film is attached to the layer of the liquid-repellent material, the periphery of the liquid-repellent material layer extends outwardly from the range of the liquid-locking material layer and the compressed foam layer to form a flap which can be attached around the wound surface, and the liquid-repellent material layer comprises a layer of compressed water-absorbing material.
  • a unidirectional liquid permeable surface material layer completely encapsulating the outer surface of the compressed water absorbing material layer, the gap between the unidirectional liquid permeable surface material layer and the compressed water absorbing material layer forming a lock liquid chamber, the unidirectional liquid permeable surface material layer An end surface is in contact with the layer of the compressed foam material, and the adhesive film forms a first adsorption chamber between the outer surface of the inner surface of the wound surface after the wound surface is adhered to the wound surface, the first adsorption chamber The volume increases as the compressed foam layer expands after aspiration.
  • the compressed foam layer is swelled and expanded, and the compressed foam layer is arranged in a three-dimensionally-transparent adsorption channel, and the adsorption channel forms a third adsorption chamber, and the third adsorption chamber The volume increases as the compressed foam layer expands after aspiration.
  • the compression type foam material layer is provided with a plurality of adsorption holes penetrating through the upper and lower end faces of the compression type foam material layer, and one end of each of the adsorption holes is in contact with the wound surface, and the adsorption hole is The open end is in contact with the inner surface of the unidirectional liquid permeable surface material layer, the inner passage of the adsorption hole forms a second adsorption chamber, and the volume of the second adsorption chamber is absorbed by the compressed foam layer Expand and increase.
  • the second adsorption chamber communicates with the first adsorption chamber through the third adsorption chamber.
  • the cross-sectional shape of the adsorption hole is one of a circle, a rectangle, an ellipse, a trapezoid, a semicircle, a semi-ellipse or a triangle.
  • the thickness of the compressed foam layer after liquid swell expansion is equal to 3 to 20 times the thickness before the liquid absorbing expansion of the compressed foam layer.
  • the volume of the first adsorption chamber after the liquid-absorbent expansion of the compressed foam layer is equal to 2 to 30 times the volume of the first adsorption chamber before the liquid-absorbent expansion of the compression-type foam layer.
  • the volume of the second adsorption chamber after the liquid-absorbent expansion of the compressed foam layer is equal to 2 to 30 times the volume of the second adsorption chamber before the liquid-absorbent expansion of the compression-type foam layer.
  • the compressed foam layer is a layer of compressed superabsorbent polyvinyl alcohol material.
  • the invention has the beneficial effects that: by providing the first adsorption cavity, the compressed foam material layer is expanded after the liquid is absorbed, the adhesive film is gradually raised, the sealed space of the first adsorption cavity is larger and larger, and the air is more and more Thin, partial vacuum is formed, and the partial vacuum of the compressed foam layer inevitably forms a negative pressure difference for the bonding position or the wound, the wound surface, etc. which need to be cleaned. Because the pressure difference is formed, the present invention inevitably produces a 24 hour uninterrupted continuous negative pressure suction action for the position of the skin and the like, and achieves the effect of gradually removing the dirt in the deep layer of the skin or pumping the wound exudate; similarly, There is also the role of wound granulation soft tissue gradually swelling and promoting local blood circulation.
  • the liquid absorbed is locked in the lock liquid space by the unidirectional liquid permeable surface material layer and the compressed water absorbing material layer, and even if the compressed water absorbing material layer is squeezed, the liquid does not ooze back from the unidirectional liquid permeable surface material layer. Wound or wound.
  • Figure 1 is a schematic view showing the structure of the present invention attached to the wound by a flap;
  • Fig. 2 is a schematic view showing the structure of the compressed foam layer in the present invention after liquid swell expansion.
  • a vacuum lock liquid treatment system comprising a compressed foam layer 1, an adhesive film 4, and a liquid-repellent material layer between the compressed foam layer 1 and the compressed foam layer 1, After the adhesive film 4 is attached to the outer surface of the liquid-repellent material layer, the periphery thereof extends outwardly from the range of the liquid-locking material layer and the compressed foam layer 1 to form a flap 40 which can be attached around the wound surface.
  • the layer comprises a layer of compressed water absorbing material 3 and a layer of unidirectional liquid permeable surface material 2 completely encapsulating the outer surface of the layer of compressed water absorbing material 3, the gap between the layer of permeable liquid surface material 2 and the layer 3 of compressed water absorbing material forming a lock
  • the liquid chamber 20 one end surface of the unidirectional liquid permeable surface material layer 2 is in contact with the compressed foam material layer 1, and the adhesive film 4 is adhered to the inner surface of the appendage 40 and the wound surface by the appendage 40
  • a first adsorption chamber 10 is formed between the outer surfaces, and the volume of the first adsorption chamber 10 increases as the compressed foam layer 1 expands after being absorbed by the liquid.
  • the compressed foam layer 1 is expanded by liquid absorption, the adhesive film 4 is gradually raised, the sealed space of the first adsorption chamber 10 is larger and larger, the air is thinner and thinner, and partial vacuum is formed.
  • the partial pressure of the compressed foam layer 1 inevitably forms a negative pressure difference between the pasting action position or the wound, the wound surface, etc., which need to be cleaned. Because the pressure difference is formed, the present invention inevitably produces a 24 hour uninterrupted continuous negative pressure suction action for the position of the skin and the like, and achieves the effect of gradually removing the dirt in the deep layer of the skin or pumping the wound exudate; similarly, There is also the role of wound granulation soft tissue gradually swelling and promoting local blood circulation.
  • the liquid absorbed is locked in the liquid lock space by the unidirectional liquid permeable surface material layer 2 and the compressed water absorbing material layer 3, and even if the compressed water absorbing material layer 3 is squeezed, the liquid does not pass from the unidirectional liquid permeable surface material layer. 2 oozing back to the patient's wound or wound.
  • the liquid after the liquid absorption of the compressed foam layer 1 enters the lock chamber 20 through the unidirectional liquid pervious surface material layer 2.
  • the layer of compressed water absorbing material 3 swells after liquid absorption, and the adhesive film 4 is gradually raised.
  • the sealing space of the lock liquid chamber 20 becomes larger and larger, the partial vacuum is further strengthened, and the compressed water absorbing material layer 3 is partially vacuum-fitted with the compressed foam material.
  • Layer 1 produces long-term continuous vacuum suction on the wound and its deep soft tissue, reaching the wound, wound exudate suction, the granulation soft tissue of the wound gradually disappears and promotes the blood circulation of the local blood.
  • One side of the unidirectional liquid permeable surface material layer 2 opposite to the lower end surface of the compressed water absorbing material layer 3 is a unidirectional liquid permeable layer, and the unidirectional liquid permeable surface opposite to the upper end surface of the compressed water absorbing material layer 3
  • One side of the material layer 2 is a water-impermeable layer. That is, the liquid can only enter the lock liquid chamber from the one-way liquid-permeable layer, and the one-way liquid-permeable layer is close to the wound surface.
  • the compressed foam layer 1 is swelled and expanded, and the compressed foam layer 1 is disposed in a three-dimensionally-transparent adsorption channel, and the adsorption channel forms a third adsorption chamber, and the third adsorption chamber
  • the volume increases as the compressed foam layer 1 expands after aspiration.
  • the compressed foam layer 1 expands after liquid absorption, and the unidirectional liquid permeable surface material layer 2 and the adhesive film 4 are gradually raised, except that the closed space of the first adsorption chamber 10 is larger and larger, a partial vacuum is formed, and the compressed foam is formed.
  • the three-dimensional interpenetrating adsorption channel in the material layer 1 is gradually restored, and the partial vacuum is further strengthened.
  • the partial vacuum of the compressed foam layer 1 exerts a long-term continuous negative pressure suction on the wound surface and the deep soft tissue to achieve the wound and wound exudate suction.
  • the wound granulation soft tissue gradually reduces swelling and promotes the effect of local blood circulation.
  • the partial vacuum of the compressed foam layer 1 exerts a negative pressure suction effect on the surface requiring soil removal and its deep soft tissue, and gradually discharges the dirt in the deep layer.
  • the liquid absorbed is locked in the liquid lock space by the unidirectional liquid permeable surface material layer 2 and the compressed water absorbing material layer 3, and even if the compressed water absorbing material layer 3 is squeezed, the liquid does not pass from the unidirectional liquid permeable surface material layer. 2 oozing back to the patient's wound or wound.
  • the compressed foam layer 1 is provided with a plurality of adsorption holes penetrating the upper and lower end faces of the compressed foam layer 1, and one end of each of the adsorption holes is in contact with the wound surface, and the adsorption The open end of the hole is in contact with the inner surface of the unidirectional liquid permeable surface material layer 2, the internal passage of the adsorption hole forms a second adsorption chamber 11, and the volume of the second adsorption chamber 11 follows the compression type foam material Layer 1 expands after liquid absorption and increases.
  • the second adsorption chamber 11 communicates with the first adsorption chamber 10 through the third adsorption chamber.
  • the layer of the compressed foam material 1 expands after liquid absorption, and the adhesive film 4 is gradually raised, except that the closed space of the first adsorption chamber 10 is larger and larger, a partial vacuum is formed, and the three-dimensional interpenetrating adsorption channel of the compressed foam layer 1 is internally formed. Gradually recovering, the partial vacuum is further strengthened. As the confined space of the second adsorption chamber 11 becomes larger and larger, the partial vacuum is greatly enhanced, and the partial vacuum of the compressed foam layer 1 causes a long-lasting negative effect on the wound surface and its deep soft tissue. Pressure suction, to achieve wound, wound exudate suction, wound granulation soft tissue gradually swelling and promote the effect of local blood circulation. Similarly, the partial vacuum of the compressed foam layer 1 exerts a negative pressure suction effect on the surface requiring soil removal and its deep soft tissue, and gradually discharges the dirt in the deep layer.
  • the cross-sectional shape of the adsorption hole is one of a circle, a rectangle, an ellipse, a trapezoid, a semicircle, a semi-ellipse or a triangle.
  • the thickness of the compressed foam layer 1 after liquid swell expansion is equal to 3 to 20 times the thickness of the compressed foam layer 1 before liquid absorbing expansion.
  • the volume of the first adsorption chamber 10 after the liquid-swelling of the compressed foam layer 1 is equal to 2 to 30 times the volume of the first adsorption chamber 10 before the liquid-absorbent expansion of the compressed foam layer 1 .
  • the volume of the second adsorption chamber 11 after the liquid-swelling of the compressed foam layer 1 is equal to 2 to 30 times the volume of the second adsorption chamber 11 before the liquid-absorbent expansion of the compressed-type foam layer 1 .
  • the compressed foam layer 1 is a layer of compressed superabsorbent polyvinyl alcohol material.
  • the present invention mainly utilizes its own special structure and has the design features of dry compression, large opening and liquid absorbing ability, and has a "cylinder effect", which generates a strong suction force. Drain the viscous liquid into the material. At the same time, the liquid or oozing blood flows into the material in real time and rapidly, and the surface tension formed by the liquid flow and the pressure difference at different positions of the wound surface are inevitably formed to form micro-power. In this way, 24 hours of continuous action, micro-power can also improve the blood circulation of the wound or wound, reduce swelling, promote the growth of epithelial cells or granulation.
  • the wound exudate is inhaled by the whole dressing, and the clinician can reduce the debridement intensity during surgery; and reduce the number of dressing changes. Because the intensity of debridement and the number of dressing changes are reduced, the damage of "skin island cells" gradually formed in mixed-type and deep second-degree burn wounds is also reduced, which is conducive to the formation of "peel island” and its “Pie Island” gradually merged to cover the wound. Reduce clinical skin grafting and scar residue after recovery.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Materials For Medical Uses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Disclosed is a therapeutic vacuum fluid-locking system, comprising a compression-type foam material layer (1), an adhesive film (4) and a fluid-locking material layer. The adhesive film (4) is provided with adhesive wings (40) attached to the periphery of a wound surface. The fluid-locking material layer comprises a water-absorbing compression material layer (3) and a material layer (2) with a one-way fluid-permeable surface, wherein a fluid-locking cavity (20) is formed in a gap between the material layer (2) with a one-way fluid-permeable surface and the water-absorbing compression material layer (3), one end face of the material layer (2) with a one-way fluid-permeable surface is in contact with the compression-type foam material layer (1), and a first adsorption cavity (10) is formed between the inner surfaces of the adhesive wings (40) and an outer surface of the wound surface after the adhesive film (4) is attached to the periphery of the wound surface via the adhesive wings (40). The volume of the first adsorption cavity (10) increases along with the expansion of the compression-type foam material layer (1) after same absorbs fluid, and the absorbed fluid is locked inside a fluid-locking space by means of the material layer (2) with a one-way fluid-permeable surface and the water-absorbing compression material layer (3), so that even when the water-absorbing compression material layer (3) is squeezed, fluid does not permeate back into the wound or wound surface of a patient through the material layer (2) with a one-way fluid-permeable surface.

Description

真空锁液治疗***  Vacuum lock fluid therapy system
技术领域Technical field
本发明涉及一种医疗器械，特别是一种真空锁液治疗***。The invention relates to a medical device, in particular to a vacuum lock fluid treatment system.
背景技术Background technique
由于现在工业的发展，空气中的微粒越来越多，人体表面的皮肤中藏有一些微小的灰尘而形成污垢。位于皮肤表面的污垢可以通过洗澡清理掉，但是位于皮肤深层的污垢通过洗澡清理不了。现代人通过尝试使用清吸液以及带化学物质的清理贴等含有化学物质去清理皮肤深层的污垢，虽然在一定程度上清理了皮肤深层的污垢，但是残留的化学物质会对皮肤造成影响。Due to the development of the industry, there are more and more particles in the air, and some tiny dust is trapped in the skin of the human body to form dirt. Dirt on the surface of the skin can be removed by bathing, but dirt deep in the skin can't be cleaned by bathing. Modern people try to use cleansing liquids and chemical-containing cleaning stickers to clean the skin's deep dirt. Although the skin's deep dirt is cleaned to some extent, the residual chemicals can affect the skin.
还有就是伤口护理方面的。一般通过伤口贴将伤口保护起来。伤口贴一般为医用聚氨酯（PU）伤口贴，该医用聚氨酯（PU）伤口贴采用进口透气PU基材，并复合表层背衬基材，经分切、灭菌、包装制成。伤口贴只能用于小块的创伤应急治疗，从而起到暂时的止血，保护创面的作用。但是应该注意，使用的时间不宜过长。如果过久地使用它，伤口贴外层的胶布不透气。就会使伤口和伤口周围的皮肤发白，***导致细菌的继发的感染。这样就会使伤口更加的恶化。其仅能在伤口或者创面不发生渗液的情况下提供利于伤口或者创面愈合的良好条件。然而，对于伤口或者创面大面积渗液时，由于伤口贴不能吸液，其渗液残留在伤口或者创面表面，一方面不利于伤口或者创面愈合，另一方面形成细菌滋生的病灶。另外，现有还有一些负压抽吸引流的创面贴，对伤口表面的渗液吸附以及将伤口深处的坏死组织吸出，但是这些创面贴需要外接负压源，才能将创面中的渗液吸附出来。现在有一种能将皮肤深层污垢吸附出来和/或吸附伤口渗液且将伤口深处的坏死组织吸出的压缩负压真空***。然而，虽然该压缩负压真空***中的片状压缩型泡沫材料层能将液体吸附出来，但是片状压缩型泡沫材料层不能锁住液体，当渗液达到一定饱和度时，用力挤压时，液体会重新流道患者伤口或者伤口，达不到理想的效果。There is also wound care. The wound is usually protected by a wound patch. The wound sticker is generally a medical polyurethane (PU) wound sticker. The medical polyurethane (PU) wound sticker is made of an imported breathable PU substrate and a composite surface backing substrate, which is cut, sterilized and packaged. Wound stickers can only be used for small pieces of trauma emergency treatment, thus temporarily stopping bleeding and protecting the wound. However, it should be noted that the time used should not be too long. If it is used too long, the tape on the outer layer of the wound is not breathable. It will make the wound and the skin around the wound white and soft, resulting in secondary infection of the bacteria. This will make the wound worse. It provides good conditions for wound or wound healing only in the absence of exudation of the wound or wound. However, when a wound or a large area of the wound is exuded, since the wound patch cannot absorb liquid, the exudate remains on the surface of the wound or the wound surface, which is not conducive to wound or wound healing on the one hand, and forms a bacterial growth lesion on the other hand. In addition, there are some wound stickers for suction suction flow, which absorb the liquid on the surface of the wound and suck out the necrotic tissue deep in the wound. However, these wounds require an external negative pressure source to infiltrate the wound. Adsorbed. There is now a compressed vacuum vacuum system that adsorbs deep skin dirt and/or adsorbs wound exudate and draws out necrotic tissue deep in the wound. However, although the sheet-like compressed foam layer in the compressed vacuum system can adsorb the liquid, the sheet-like compressed foam layer cannot lock the liquid, and when the liquid reaches a certain saturation, the force is squeezed. The liquid will re-flow the patient's wound or wound, which will not achieve the desired effect.
发明内容Summary of the invention
本发明的目的，在于提供一种真空锁液治疗***。It is an object of the present invention to provide a vacuum lock fluid therapy system.
本发明解决其技术问题的解决方案是：真空锁液治疗***，包括压缩型泡沫材料层、粘胶贴膜以及位于压缩型泡沫材料层和压缩型泡沫材料层之间的锁液材料层，所述粘胶贴膜附着在锁液材料层后其四周往外依次延伸出锁液材料层和压缩型泡沫材料层的范围后形成能贴在创面周围的贴翼，所述锁液材料层包括压缩吸水材料层以及将压缩吸水材料层外表面完全包裹的单向透液表面材料层，所述单向透液表面材料层和压缩吸水材料层之间的间隙形成锁液腔，单向透液表面材料层的一端面与压缩型泡沫材料层接触，所述粘胶贴膜通过贴翼黏贴在创面周围后所述贴翼的内表面创面的外表面之间形成第一吸附腔，所述第一吸附腔的体积随着所述压缩型泡沫材料层吸液后膨胀而增大。The solution to the technical problem of the present invention is: a vacuum lock liquid treatment system comprising a compressed foam layer, an adhesive film, and a layer of liquid-locking material between the layer of the compressed foam and the layer of compressed foam, After the adhesive film is attached to the layer of the liquid-repellent material, the periphery of the liquid-repellent material layer extends outwardly from the range of the liquid-locking material layer and the compressed foam layer to form a flap which can be attached around the wound surface, and the liquid-repellent material layer comprises a layer of compressed water-absorbing material. And a unidirectional liquid permeable surface material layer completely encapsulating the outer surface of the compressed water absorbing material layer, the gap between the unidirectional liquid permeable surface material layer and the compressed water absorbing material layer forming a lock liquid chamber, the unidirectional liquid permeable surface material layer An end surface is in contact with the layer of the compressed foam material, and the adhesive film forms a first adsorption chamber between the outer surface of the inner surface of the wound surface after the wound surface is adhered to the wound surface, the first adsorption chamber The volume increases as the compressed foam layer expands after aspiration.
作为上述技术方案的进一步改进，所述压缩型泡沫材料层吸液后的液体通过单向透液表面材料层进入锁液腔。As a further improvement of the above technical solution, the liquid after the liquid suction of the compressed foam layer enters the lock liquid chamber through the unidirectional liquid permeable surface material layer.
作为上述技术方案的进一步改进，所述压缩型泡沫材料层吸液膨胀后压缩型泡沫材料层中布置满三维互通的吸附通道，所述吸附通道形成第三吸附腔，所述第三吸附腔的体积随着所述压缩型泡沫材料层吸液后膨胀而增大。As a further improvement of the above technical solution, the compressed foam layer is swelled and expanded, and the compressed foam layer is arranged in a three-dimensionally-transparent adsorption channel, and the adsorption channel forms a third adsorption chamber, and the third adsorption chamber The volume increases as the compressed foam layer expands after aspiration.
作为上述技术方案的进一步改进，所述压缩型泡沫材料层内设置有多个贯穿压缩型泡沫材料层上、下端面的吸附孔，每一个所述吸附孔的一端与创面接触，所述吸附孔的敞口端与单向透液表面材料层的内表面接触，所述吸附孔的内部通道形成第二吸附腔，所述第二吸附腔的体积随着所述压缩型泡沫材料层吸液后膨胀而增大。As a further improvement of the above technical solution, the compression type foam material layer is provided with a plurality of adsorption holes penetrating through the upper and lower end faces of the compression type foam material layer, and one end of each of the adsorption holes is in contact with the wound surface, and the adsorption hole is The open end is in contact with the inner surface of the unidirectional liquid permeable surface material layer, the inner passage of the adsorption hole forms a second adsorption chamber, and the volume of the second adsorption chamber is absorbed by the compressed foam layer Expand and increase.
作为上述技术方案的进一步改进，所述压缩型泡沫材料层吸液膨胀后，所述第二吸附腔通过第三吸附腔与第一吸附腔连通。As a further improvement of the above technical solution, after the compressed foam layer is liquid-absorbed, the second adsorption chamber communicates with the first adsorption chamber through the third adsorption chamber.
作为上述技术方案的进一步改进，所述吸附孔的截面形状为圆形、矩形、椭圆形、梯形、半圆形、半椭圆形或者三角形中的一种。As a further improvement of the above technical solution, the cross-sectional shape of the adsorption hole is one of a circle, a rectangle, an ellipse, a trapezoid, a semicircle, a semi-ellipse or a triangle.
作为上述技术方案的进一步改进，所述压缩型泡沫材料层吸液膨胀后的厚度等于3~20倍压缩型泡沫材料层吸液膨胀前的厚度。As a further improvement of the above technical solution, the thickness of the compressed foam layer after liquid swell expansion is equal to 3 to 20 times the thickness before the liquid absorbing expansion of the compressed foam layer.
作为上述技术方案的进一步改进，所述压缩型泡沫材料层吸液膨胀后第一吸附腔的体积等于2~30倍所述压缩型泡沫材料层吸液膨胀前第一吸附腔的体积。As a further improvement of the above technical solution, the volume of the first adsorption chamber after the liquid-absorbent expansion of the compressed foam layer is equal to 2 to 30 times the volume of the first adsorption chamber before the liquid-absorbent expansion of the compression-type foam layer.
作为上述技术方案的进一步改进，所述压缩型泡沫材料层吸液膨胀后第二吸附腔的体积等于2~30倍所述压缩型泡沫材料层吸液膨胀前第二吸附腔的体积。As a further improvement of the above technical solution, the volume of the second adsorption chamber after the liquid-absorbent expansion of the compressed foam layer is equal to 2 to 30 times the volume of the second adsorption chamber before the liquid-absorbent expansion of the compression-type foam layer.
作为上述技术方案的进一步改进，所述压缩型泡沫材料层为压缩高吸水性聚乙烯醇材料层。As a further improvement of the above technical solution, the compressed foam layer is a layer of compressed superabsorbent polyvinyl alcohol material.
本发明的有益效果是：本发明通过设置第一吸附腔，压缩型泡沫材料层吸液后膨胀，粘胶贴膜逐渐被抬高，第一吸附腔的密闭空间越来越大，空气越来越稀薄，局部真空形成，压缩型泡沫材料层局部真空对需要清洁的粘贴作用位置或伤口、创面等必然形成负压压差。因为压差形成，本发明对于其作用的皮肤等位置，必然产生24小时不间断的持续负压抽吸作用，达到逐渐将皮肤深层中的污垢清除或伤口渗液抽吸的效果；同理，也有创面肉芽软组织逐渐消肿和促进局部血液血环的作用。另外，通过单向透液表面材料层和压缩吸水材料层将所吸取的液体锁在锁液空间内，即使挤压压缩吸水材料层，液体也不会从单向透液表面材料层渗回患者伤口或创面。The invention has the beneficial effects that: by providing the first adsorption cavity, the compressed foam material layer is expanded after the liquid is absorbed, the adhesive film is gradually raised, the sealed space of the first adsorption cavity is larger and larger, and the air is more and more Thin, partial vacuum is formed, and the partial vacuum of the compressed foam layer inevitably forms a negative pressure difference for the bonding position or the wound, the wound surface, etc. which need to be cleaned. Because the pressure difference is formed, the present invention inevitably produces a 24 hour uninterrupted continuous negative pressure suction action for the position of the skin and the like, and achieves the effect of gradually removing the dirt in the deep layer of the skin or pumping the wound exudate; similarly, There is also the role of wound granulation soft tissue gradually swelling and promoting local blood circulation. In addition, the liquid absorbed is locked in the lock liquid space by the unidirectional liquid permeable surface material layer and the compressed water absorbing material layer, and even if the compressed water absorbing material layer is squeezed, the liquid does not ooze back from the unidirectional liquid permeable surface material layer. Wound or wound.
附图说明DRAWINGS
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单说明。显然，所描述的附图只是本发明的一部分实施例，而不是全部实施例，本领域的技术人员在不付出创造性劳动的前提下，还可以根据这些附图获得其他设计方案和附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is apparent that the described drawings are only a part of the embodiments of the present invention, and not all of the embodiments, and those skilled in the art can obtain other designs and drawings according to the drawings without any creative work.
图1是本发明通过贴翼贴在创面周围的结构示意图；Figure 1 is a schematic view showing the structure of the present invention attached to the wound by a flap;
图2是本发明中压缩型泡沫材料层吸液膨胀后的结构示意图。Fig. 2 is a schematic view showing the structure of the compressed foam layer in the present invention after liquid swell expansion.
具体实施方式detailed description
以下将结合实施例和附图对本发明的构思、具体结构及产生的技术效果进行清楚、完整地描述，以充分地理解本发明的目的、特征和效果。显然，所描述的实施例只是本发明的一部分实施例，而不是全部实施例，基于本发明的实施例，本领域的技术人员在不付出创造性劳动的前提下所获得的其他实施例，均属于本发明保护的范围。另外，文中所提到的所有联接/连接关系，并非单指构件直接相接，而是指可根据具体实施情况，通过添加或减少联接辅件，来组成更优的联接结构。The concept, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings. It is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments, based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The scope of protection of the present invention. In addition, all the coupling/joining relationships mentioned in the text are not directly connected to the components, but rather may constitute a better coupling structure by adding or reducing the coupling accessories according to the specific implementation.
参照图1～图2，真空锁液治疗***，包括压缩型泡沫材料层1、粘胶贴膜4以及位于压缩型泡沫材料层1和压缩型泡沫材料层1之间的锁液材料层，所述粘胶贴膜4附着在锁液材料层的外表面后其四周往外依次延伸出锁液材料层和压缩型泡沫材料层1的范围后形成能贴在创面周围的贴翼40，所述锁液材料层包括压缩吸水材料层3以及将压缩吸水材料层3外表面完全包裹的单向透液表面材料层2，所述单向透液表面材料层2和压缩吸水材料层3之间的间隙形成锁液腔20，单向透液表面材料层2的一端面与压缩型泡沫材料层1接触，所述粘胶贴膜4通过贴翼40黏贴在创面周围后所述贴翼40的内表面和创面的外表面之间形成第一吸附腔10，所述第一吸附腔10的体积随着所述压缩型泡沫材料层1吸液后膨胀而增大。1 to 2, a vacuum lock liquid treatment system comprising a compressed foam layer 1, an adhesive film 4, and a liquid-repellent material layer between the compressed foam layer 1 and the compressed foam layer 1, After the adhesive film 4 is attached to the outer surface of the liquid-repellent material layer, the periphery thereof extends outwardly from the range of the liquid-locking material layer and the compressed foam layer 1 to form a flap 40 which can be attached around the wound surface. The layer comprises a layer of compressed water absorbing material 3 and a layer of unidirectional liquid permeable surface material 2 completely encapsulating the outer surface of the layer of compressed water absorbing material 3, the gap between the layer of permeable liquid surface material 2 and the layer 3 of compressed water absorbing material forming a lock The liquid chamber 20, one end surface of the unidirectional liquid permeable surface material layer 2 is in contact with the compressed foam material layer 1, and the adhesive film 4 is adhered to the inner surface of the appendage 40 and the wound surface by the appendage 40 A first adsorption chamber 10 is formed between the outer surfaces, and the volume of the first adsorption chamber 10 increases as the compressed foam layer 1 expands after being absorbed by the liquid.
通过设置第一吸附腔10，压缩型泡沫材料层1吸液后膨胀，粘胶贴膜4逐渐被抬高，第一吸附腔10的密闭空间越来越大，空气越来越稀薄，局部真空形成，压缩型泡沫材料层1局部真空对需要清洁的粘贴作用位置或伤口、创面等必然形成负压压差。因为压差形成，本发明对于其作用的皮肤等位置，必然产生24小时不间断的持续负压抽吸作用，达到逐渐将皮肤深层中的污垢清除或伤口渗液抽吸的效果；同理，也有创面肉芽软组织逐渐消肿和促进局部血液血环的作用。另外，通过单向透液表面材料层2和压缩吸水材料层3将所吸取的液体锁在锁液空间内，即使挤压压缩吸水材料层3，液体也不会从单向透液表面材料层2渗回患者伤口或创面。By providing the first adsorption chamber 10, the compressed foam layer 1 is expanded by liquid absorption, the adhesive film 4 is gradually raised, the sealed space of the first adsorption chamber 10 is larger and larger, the air is thinner and thinner, and partial vacuum is formed. The partial pressure of the compressed foam layer 1 inevitably forms a negative pressure difference between the pasting action position or the wound, the wound surface, etc., which need to be cleaned. Because the pressure difference is formed, the present invention inevitably produces a 24 hour uninterrupted continuous negative pressure suction action for the position of the skin and the like, and achieves the effect of gradually removing the dirt in the deep layer of the skin or pumping the wound exudate; similarly, There is also the role of wound granulation soft tissue gradually swelling and promoting local blood circulation. In addition, the liquid absorbed is locked in the liquid lock space by the unidirectional liquid permeable surface material layer 2 and the compressed water absorbing material layer 3, and even if the compressed water absorbing material layer 3 is squeezed, the liquid does not pass from the unidirectional liquid permeable surface material layer. 2 oozing back to the patient's wound or wound.
进一步作为优选的实施方式，所述压缩型泡沫材料层1吸液后的液体通过单向透液表面材料层2进入锁液腔20。压缩吸水材料层3吸液后膨胀，粘胶贴膜4逐渐被抬高，随着锁液腔20的密闭空间越来越大，局部真空进一步加强，压缩吸水材料层3局部真空配合压缩型泡沫材料层1对创面及其深部软组织产生长时间持续负压抽吸作用，达到伤口、创面渗液抽吸，创面肉芽软组织逐渐消肿和促进局部血液血环的效果。与位于压缩吸水材料层3的下端面相对的所述单向透液表面材料层2的一面为单向透液层，与位于压缩吸水材料层3的上端面相对的所述单向透液表面材料层2的一面为不透水层。即液体只能从单向透液层进入到锁液腔，并且单向透液层靠近创面。Further as a preferred embodiment, the liquid after the liquid absorption of the compressed foam layer 1 enters the lock chamber 20 through the unidirectional liquid pervious surface material layer 2. The layer of compressed water absorbing material 3 swells after liquid absorption, and the adhesive film 4 is gradually raised. As the sealing space of the lock liquid chamber 20 becomes larger and larger, the partial vacuum is further strengthened, and the compressed water absorbing material layer 3 is partially vacuum-fitted with the compressed foam material. Layer 1 produces long-term continuous vacuum suction on the wound and its deep soft tissue, reaching the wound, wound exudate suction, the granulation soft tissue of the wound gradually disappears and promotes the blood circulation of the local blood. One side of the unidirectional liquid permeable surface material layer 2 opposite to the lower end surface of the compressed water absorbing material layer 3 is a unidirectional liquid permeable layer, and the unidirectional liquid permeable surface opposite to the upper end surface of the compressed water absorbing material layer 3 One side of the material layer 2 is a water-impermeable layer. That is, the liquid can only enter the lock liquid chamber from the one-way liquid-permeable layer, and the one-way liquid-permeable layer is close to the wound surface.
进一步作为优选的实施方式，所述压缩型泡沫材料层1吸液膨胀后压缩型泡沫材料层1中布置满三维互通的吸附通道，所述吸附通道形成第三吸附腔，所述第三吸附腔的体积随着所述压缩型泡沫材料层1吸液后膨胀而增大。压缩型泡沫材料层1吸液后膨胀，单向透液表面材料层2和粘胶贴膜4逐渐被抬高，除了第一吸附腔10的密闭空间越来越大，局部真空形成，压缩型泡沫材料层1内部三维互通的吸附通道逐渐恢复，局部真空进一步加强，压缩型泡沫材料层1局部真空对创面及其深部软组织产生长时间持续负压抽吸作用，达到伤口、创面渗液抽吸，创面肉芽软组织逐渐消肿和促进局部血液血环的效果。同理，压缩型泡沫材料层1局部真空对需要除污垢的表面及其深部软组织产生负压抽吸作用，逐渐将深层中的污垢排出。另外，通过单向透液表面材料层2和压缩吸水材料层3将所吸取的液体锁在锁液空间内，即使挤压压缩吸水材料层3，液体也不会从单向透液表面材料层2渗回患者伤口或创面。Further, as a preferred embodiment, the compressed foam layer 1 is swelled and expanded, and the compressed foam layer 1 is disposed in a three-dimensionally-transparent adsorption channel, and the adsorption channel forms a third adsorption chamber, and the third adsorption chamber The volume increases as the compressed foam layer 1 expands after aspiration. The compressed foam layer 1 expands after liquid absorption, and the unidirectional liquid permeable surface material layer 2 and the adhesive film 4 are gradually raised, except that the closed space of the first adsorption chamber 10 is larger and larger, a partial vacuum is formed, and the compressed foam is formed. The three-dimensional interpenetrating adsorption channel in the material layer 1 is gradually restored, and the partial vacuum is further strengthened. The partial vacuum of the compressed foam layer 1 exerts a long-term continuous negative pressure suction on the wound surface and the deep soft tissue to achieve the wound and wound exudate suction. The wound granulation soft tissue gradually reduces swelling and promotes the effect of local blood circulation. Similarly, the partial vacuum of the compressed foam layer 1 exerts a negative pressure suction effect on the surface requiring soil removal and its deep soft tissue, and gradually discharges the dirt in the deep layer. In addition, the liquid absorbed is locked in the liquid lock space by the unidirectional liquid permeable surface material layer 2 and the compressed water absorbing material layer 3, and even if the compressed water absorbing material layer 3 is squeezed, the liquid does not pass from the unidirectional liquid permeable surface material layer. 2 oozing back to the patient's wound or wound.
进一步作为优选的实施方式，所述压缩型泡沫材料层1内设置有多个贯穿压缩型泡沫材料层1上、下端面的吸附孔，每一个所述吸附孔的一端与创面接触，所述吸附孔的敞口端与单向透液表面材料层2的内表面接触，所述吸附孔的内部通道形成第二吸附腔11，所述第二吸附腔11的体积随着所述压缩型泡沫材料层1吸液后膨胀而增大。Further, as a preferred embodiment, the compressed foam layer 1 is provided with a plurality of adsorption holes penetrating the upper and lower end faces of the compressed foam layer 1, and one end of each of the adsorption holes is in contact with the wound surface, and the adsorption The open end of the hole is in contact with the inner surface of the unidirectional liquid permeable surface material layer 2, the internal passage of the adsorption hole forms a second adsorption chamber 11, and the volume of the second adsorption chamber 11 follows the compression type foam material Layer 1 expands after liquid absorption and increases.
进一步作为优选的实施方式，所述压缩型泡沫材料层1吸液膨胀后，所述第二吸附腔11通过第三吸附腔与第一吸附腔10连通。Further, as a preferred embodiment, after the compressed foam layer 1 is liquid-swelled, the second adsorption chamber 11 communicates with the first adsorption chamber 10 through the third adsorption chamber.
压缩型泡沫材料层1吸液后膨胀，粘胶贴膜4逐渐被抬高，除了第一吸附腔10的密闭空间越来越大，局部真空形成，压缩型泡沫材料层1内部三维互通的吸附通道逐渐恢复，局部真空进一步加强，随着第二吸附腔11的密闭空间越来越大，局部真空得到极大的加强，压缩型泡沫材料层1局部真空对创面及其深部软组织产生长时间持续负压抽吸作用，达到伤口、创面渗液抽吸，创面肉芽软组织逐渐消肿和促进局部血液血环的效果。同理，压缩型泡沫材料层1局部真空对需要除污垢的表面及其深部软组织产生负压抽吸作用，逐渐将深层中的污垢排出。The layer of the compressed foam material 1 expands after liquid absorption, and the adhesive film 4 is gradually raised, except that the closed space of the first adsorption chamber 10 is larger and larger, a partial vacuum is formed, and the three-dimensional interpenetrating adsorption channel of the compressed foam layer 1 is internally formed. Gradually recovering, the partial vacuum is further strengthened. As the confined space of the second adsorption chamber 11 becomes larger and larger, the partial vacuum is greatly enhanced, and the partial vacuum of the compressed foam layer 1 causes a long-lasting negative effect on the wound surface and its deep soft tissue. Pressure suction, to achieve wound, wound exudate suction, wound granulation soft tissue gradually swelling and promote the effect of local blood circulation. Similarly, the partial vacuum of the compressed foam layer 1 exerts a negative pressure suction effect on the surface requiring soil removal and its deep soft tissue, and gradually discharges the dirt in the deep layer.
进一步作为优选的实施方式，所述吸附孔的截面形状为圆形、矩形、椭圆形、梯形、半圆形、半椭圆形或者三角形中的一种。Further, as a preferred embodiment, the cross-sectional shape of the adsorption hole is one of a circle, a rectangle, an ellipse, a trapezoid, a semicircle, a semi-ellipse or a triangle.
进一步作为优选的实施方式，所述压缩型泡沫材料层1吸液膨胀后的厚度等于3~20倍压缩型泡沫材料层1吸液膨胀前的厚度。Further, as a preferred embodiment, the thickness of the compressed foam layer 1 after liquid swell expansion is equal to 3 to 20 times the thickness of the compressed foam layer 1 before liquid absorbing expansion.
进一步作为优选的实施方式，所述压缩型泡沫材料层1吸液膨胀后第一吸附腔10的体积等于2~30倍所述压缩型泡沫材料层1吸液膨胀前第一吸附腔10的体积。Further, as a preferred embodiment, the volume of the first adsorption chamber 10 after the liquid-swelling of the compressed foam layer 1 is equal to 2 to 30 times the volume of the first adsorption chamber 10 before the liquid-absorbent expansion of the compressed foam layer 1 .
进一步作为优选的实施方式，所述压缩型泡沫材料层1吸液膨胀后第二吸附腔11的体积等于2~30倍所述压缩型泡沫材料层1吸液膨胀前第二吸附腔11的体积。Further, as a preferred embodiment, the volume of the second adsorption chamber 11 after the liquid-swelling of the compressed foam layer 1 is equal to 2 to 30 times the volume of the second adsorption chamber 11 before the liquid-absorbent expansion of the compressed-type foam layer 1 .
进一步作为优选的实施方式，所述压缩型泡沫材料层1为压缩高吸水性聚乙烯醇材料层。Further as a preferred embodiment, the compressed foam layer 1 is a layer of compressed superabsorbent polyvinyl alcohol material.
另外，在无法密封创面或无需密封创面的处理中，本发明主要利用自身特殊结构而具有干燥压缩、大开孔以及吸液能力的设计特点具有“唧筒效应”，产生较强的抽吸力，将粘稠渗液引流至材料内。同时，渗液或渗血实时、快速流入材料，必然出现液体流动所形成的表面张力及其创面不同位置的压强差，形成微动力。这样一来，24小时持续作用，微动力也可以改善伤口或创面血液循环、消肿、促进上皮细胞或肉芽生长等作用。In addition, in the process of not being able to seal the wound or to seal the wound, the present invention mainly utilizes its own special structure and has the design features of dry compression, large opening and liquid absorbing ability, and has a "cylinder effect", which generates a strong suction force. Drain the viscous liquid into the material. At the same time, the liquid or oozing blood flows into the material in real time and rapidly, and the surface tension formed by the liquid flow and the pressure difference at different positions of the wound surface are inevitably formed to form micro-power. In this way, 24 hours of continuous action, micro-power can also improve the blood circulation of the wound or wound, reduce swelling, promote the growth of epithelial cells or granulation.
对于混合型、深二度烧伤创面，基于本发明的结构而起的局部真空负压作用，创面渗液被整体吸入敷料，临床医生手术时可以减轻清创强度；减少换药次数。因为清创强度和换药次数减少，对于混合型、深二度烧伤创面逐渐形成的“皮岛细胞”损伤也减少，有利于“皮岛”生成及其 “皮岛”逐渐融合覆盖创面。减少临床植皮和恢复后疤痕残留。For mixed type, deep second degree burn wounds, based on the partial vacuum negative pressure effect of the structure of the present invention, the wound exudate is inhaled by the whole dressing, and the clinician can reduce the debridement intensity during surgery; and reduce the number of dressing changes. Because the intensity of debridement and the number of dressing changes are reduced, the damage of "skin island cells" gradually formed in mixed-type and deep second-degree burn wounds is also reduced, which is conducive to the formation of "peel island" and its “Pie Island” gradually merged to cover the wound. Reduce clinical skin grafting and scar residue after recovery.
以上是对本发明的较佳实施方式进行了具体说明，但本发明创造并不限于所述实施例，熟悉本领域的技术人员在不违背本发明精神的前提下还可作出种种的等同变型或替换，这些等同的变型或替换均包含在本申请权利要求所限定的范围内。The above is a detailed description of the preferred embodiments of the present invention, but the invention is not limited to the embodiments, and various modifications and substitutions can be made by those skilled in the art without departing from the spirit of the invention. Such equivalent modifications or alternatives are intended to be included within the scope of the claims.

Claims (10)

  1. 真空锁液治疗***，其特征在于：包括压缩型泡沫材料层、粘胶贴膜以及位于压缩型泡沫材料层和压缩型泡沫材料层之间的锁液材料层，所述粘胶贴膜附着在锁液材料层后其四周往外依次延伸出锁液材料层和压缩型泡沫材料层的范围后形成能贴创面周围的贴翼，所述锁液材料层包括压缩吸水材料层以及将压缩吸水材料层外表面完全包裹的单向透液表面材料层，所述单向透液表面材料层和压缩吸水材料层之间的间隙形成锁液腔，单向透液表面材料层的一端面与压缩型泡沫材料层接触，所述粘胶贴膜通过贴翼黏贴在创面周围后所述贴翼的内表面和创面的外表面之间形成第一吸附腔，所述第一吸附腔的体积随着所述压缩型泡沫材料层吸液后膨胀而增大。 A vacuum lock liquid treatment system, comprising: a compressed foam layer, an adhesive film, and a layer of a lock liquid material between the compressed foam layer and the compressed foam layer, the adhesive film being attached to the lock solution After the material layer is extended from the periphery of the material layer to the range of the layer of the lock liquid material and the layer of the compressed foam material, the applicator is formed to form a wrap around the wound surface, the layer of the lock liquid material comprising the layer of compressed water absorbing material and the outer surface of the layer of compressed water absorbing material a completely wrapped unidirectional liquid permeable surface material layer, the gap between the unidirectional liquid permeable surface material layer and the compressed water absorbing material layer forms a lock chamber, one end surface of the unidirectional liquid permeable surface material layer and the compressed foam layer Contacting, the adhesive film forms a first adsorption cavity between the inner surface of the appendage and the outer surface of the wound surface after the applicator is adhered around the wound surface, and the volume of the first adsorption cavity follows the compression type The foam layer expands and increases after aspirating.
  2. 根据权利要求1所述的真空锁液治疗***，其特征在于：所述压缩型泡沫材料层吸液后的液体通过单向透液表面材料层进入锁液腔。The vacuum lock liquid treatment system according to claim 1, wherein the liquid after the liquid suction of the compressed foam layer enters the lock chamber through the unidirectional liquid permeable surface material layer.
  3. 根据权利要求1所述的真空锁液治疗***，其特征在于：所述压缩型泡沫材料层吸液膨胀后压缩型泡沫材料层中布置满三维互通的吸附通道，所述吸附通道形成第三吸附腔，所述第三吸附腔的体积随着所述压缩型泡沫材料层吸液后膨胀而增大。The vacuum lock liquid treatment system according to claim 1, wherein the compressed foam layer is swelled and expanded, and the compressed foam layer is arranged in a three-dimensionally-adsorbed adsorption channel, and the adsorption channel forms a third adsorption. The cavity, the volume of the third adsorption chamber increases as the compressed foam layer expands after aspiration.
  4. 根据权利要求2所述的真空锁液治疗***，其特征在于：所述压缩型泡沫材料层内设置有多个贯穿压缩型泡沫材料层上、下端面的吸附孔，每一个所述吸附孔的一端与创面接触，所述吸附孔的敞口端与单向透液表面材料层的内表面接触，所述吸附孔的内部通道形成第二吸附腔，所述第二吸附腔的体积随着所述压缩型泡沫材料层吸液后膨胀而增大。The vacuum lock liquid treatment system according to claim 2, wherein said compression type foam material layer is provided with a plurality of adsorption holes penetrating through the upper and lower end faces of the compression type foam material layer, each of said adsorption holes One end is in contact with the wound surface, and the open end of the adsorption hole is in contact with the inner surface of the unidirectional liquid-permeable surface material layer, and the inner passage of the adsorption hole forms a second adsorption chamber, and the volume of the second adsorption chamber is along with The layer of the compressed foam material expands and then increases.
  5. 根据权利要求4所述的真空锁液治疗***，其特征在于：所述压缩型泡沫材料层吸液膨胀后，所述第二吸附腔通过第三吸附腔与第一吸附腔连通。The vacuum lock liquid treatment system according to claim 4, wherein the second adsorption chamber is in communication with the first adsorption chamber through the third adsorption chamber after the compressed foam layer is liquid-swelled.
  6. 根据权利要求4所述的真空锁液治疗***，其特征在于：所述吸附孔的截面形状为圆形、矩形、椭圆形、梯形、半圆形、半椭圆形或者三角形中的一种。The vacuum lock liquid therapy system according to claim 4, wherein the adsorption hole has a cross-sectional shape of one of a circular shape, a rectangular shape, an elliptical shape, a trapezoidal shape, a semicircular shape, a semi-elliptical shape or a triangular shape.
  7. 根据权利要求1或2或3或4或5或6所述的真空锁液治疗***，其特征在于：所述压缩型泡沫材料层吸液膨胀后的厚度等于3~20倍压缩型泡沫材料层吸液膨胀前的厚度。The vacuum lock liquid treatment system according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein the thickness of the compressed foam layer after liquid swell expansion is equal to 3 to 20 times the compression foam layer The thickness before the liquid swells.
  8. 根据权利要求1或2或3或4或5或6所述的真空锁液治疗***，其特征在于：所述压缩型泡沫材料层吸液膨胀后第一吸附腔的体积等于2~30倍所述压缩型泡沫材料层吸液膨胀前第一吸附腔的体积。The vacuum lock liquid treatment system according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein the volume of the first adsorption chamber after the liquid-swelling of the compressed foam layer is equal to 2 to 30 times The volume of the first adsorption chamber before the liquid-absorbent expansion of the compressed foam layer.
  9. 根据权利要求1或2或3或4或5或6所述的真空锁液治疗***，其特征在于：所述压缩型泡沫材料层吸液膨胀后第二吸附腔的体积等于2~30倍所述压缩型泡沫材料层吸液膨胀前第二吸附腔的体积。The vacuum lock liquid treatment system according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein the volume of the second adsorption chamber after the liquid-swelling of the compressed foam layer is equal to 2 to 30 times The volume of the second adsorption chamber before the liquid-absorbent expansion of the compressed foam layer.
  10. 根据权利要求1或2或3或4或5或6所述的真空锁液治疗***，其特征在于：所述压缩型泡沫材料层为压缩高吸水性聚乙烯醇材料层。A vacuum lock liquid treatment system according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein said compressed foam layer is a layer of compressed superabsorbent polyvinyl alcohol material.
PCT/CN2017/070344 2016-10-18 2017-01-06 Therapeutic vacuum fluid-locking system WO2018072347A1 (en)

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