DE3032092C2 - Wound pad - Google Patents
Wound padInfo
- Publication number
- DE3032092C2 DE3032092C2 DE3032092A DE3032092A DE3032092C2 DE 3032092 C2 DE3032092 C2 DE 3032092C2 DE 3032092 A DE3032092 A DE 3032092A DE 3032092 A DE3032092 A DE 3032092A DE 3032092 C2 DE3032092 C2 DE 3032092C2
- Authority
- DE
- Germany
- Prior art keywords
- layer
- suction
- wound
- absorbent layer
- foamed
- 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
Links
- 230000002745 absorbent Effects 0.000 claims description 30
- 239000002250 absorbent Substances 0.000 claims description 30
- 230000000694 effects Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 229920002379 silicone rubber Polymers 0.000 claims description 11
- 239000004945 silicone rubber Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000001913 cellulose Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 43
- 206010052428 Wound Diseases 0.000 description 30
- 208000027418 Wounds and injury Diseases 0.000 description 30
- 239000012530 fluid Substances 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 230000035876 healing Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 210000005239 tubule Anatomy 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/425—Porous materials, e.g. foams or sponges
-
- A61F13/01021—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
-
- 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
- A61F2013/00089—Wound bandages
- A61F2013/00217—Wound bandages not adhering to the wound
-
- 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
- A61F2013/00361—Plasters
- A61F2013/00727—Plasters means for wound humidity control
- A61F2013/00731—Plasters means for wound humidity control with absorbing pads
- A61F2013/0074—Plasters means for wound humidity control with absorbing pads containing foams
-
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530802—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterized by the foam or sponge other than superabsorbent
-
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F2013/53721—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means
-
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F2013/8476—Accessories, not otherwise provided for, for absorbent pads with various devices or method
Description
Die Erfindung betrifft eine Wundaufiage mit einer Saug-Speicher-Schicht aus einem stark hygroskopisch wirkenden Material und einer nicht mit dem Körper verwachsenen Saugschicht.The invention relates to a wound dressing with a suction-storage layer made of a highly hygroscopic effective material and an absorbent layer that has not grown into the body.
Eine solche Wundaufiage ist durch die GB-PS 98 826 bekannt. Diese Wundaufiage besteht aus einer nicht haftenden Auflage als Saugschicht aus Polysiloxan, die bei den in der Druckschrift angegebenen Polymerisationbedingungen einen Silicon-Kautschuk ergibt und auf eine poröss und schwammförmige Gaze aufgetragen ist.Such a wound dressing is known from GB-PS 98 826. This wound dressing consists of one non-adhesive layer as an absorbent layer made of polysiloxane, which results in a silicone rubber under the polymerization conditions specified in the publication and is applied to a porous and spongy gauze.
Es ist ferner bekannt, in der Wundbehandlung anstelle von Zellstoffauflagen Auflagen aus Polyurethanschäumen auf die Wunden aufzulegen, die eine gewisse Saugwirkung auf die Wunden ausüben. Dadurch werden die Gewebeflüssigkeiten in diesem schaumstoffartigcn Polyurethanschwamm aufgesogen, so duH die Heilerfolge gegenüber den bekannten Zellstoffuuflagcn wesentlich günstiger verlaufen.It is also known in the treatment of wounds, instead of cellulose pads, to place pads made of polyurethane foams on the wounds that have a certain Apply suction to the wounds. As a result, the tissue fluids in this foam-like polyurethane sponge are absorbed, so that the healing results are much more favorable compared to the known cellulose pads.
gen bildet sich jedoch auch bei der Anwendung von Auflagen aus Polyurethanschäumen zwischen der Wundgranulation und dem Auflagepolster eine feste Verbindung, so daß beim Entfernen der Saugflächen esHowever, gene also forms when using polyurethane foam pads between the Wound granulation and the pad a firm connection, so that when removing the suction surfaces it immer zu Wundbeschädigungen kommtalways leads to wound damage
Der Erfindung liegt die Aufgabe zugrunde, eine Wundaufiage der eingangs genannten Art so auszugestalten, daß ein Verwachsen mit der Wundgranulation einer heilenden Wunde vermieden wird, die einen hohenThe invention is based on the object of designing a wound dressing of the type mentioned at the outset in such a way that it grows together with the wound granulation a healing wound is avoided that has a high Saug- und Speichereffekt für die bei Wunden am menschlichen und tierischen Körper auftretenden Gewebeflüssigkeiten aufweist und bei der die aufgesogene Gewebeflüssigkeit nicht bei Bewegung und Druck aus der Wunde herausdrückbar ist.Suction and storage effect for those with wounds on has tissue fluids occurring in the human and animal body and in which the absorbed Tissue fluid cannot be squeezed out of the wound with movement and pressure.
Diese Aufgabe wird durch die im Patentanspruch 1 gekennzeichneten Merkmale gelöstThis object is achieved by the features characterized in claim 1
Mit einer derart ausgebildeten Wundauflage ist die Bildung einer festen Verbindung der Wundaufiage mit der Wundgranulation einer Wunde nicht mehr möglich,With a wound pad designed in this way, the Formation of a firm connection between the wound dressing and the wound granulation of a wound is no longer possible, so daa bei einem Entfernen der Wundaufiage keine Wundenbeschädigung mehr eintreten kann. Dies ist auf die verwendete Saugschicht aus additionsvernetztem Silicon-Kautschuk zurückzuführen, der eine toxikologische Unbedenklichkeit aufweist die wesentlich höherso that no more damage to the wound can occur when the wound dressing is removed. This is on the absorbent layer used made of addition-crosslinked silicone rubber, which is toxicologically harmless, is much higher liegt als die bekannten als Wundaufiage^ verwendeten Polyurethanschäume. Additionsvernetzter Silicon-Kautschuk wird vom Körpergewebe nicht angenommen, d. h. ein Verwachsen der Wundauflage mit der Wunde, d. h. mit dec Wundgranulation, ist nicht mehrlies than the well-known polyurethane foams used as wound pads. Addition-crosslinked silicone rubber is not accepted by the body tissue; H. a growing together of the wound pad with the Wound, d. H. with dec wound granulation, is no more gegeben. Daraus ergibt sich, daß Wundauflagen mit einer Saugschicht aus einem geschäumten, additionsvernetzten Silicon-Kautschuk ideale Voraussetzungen für die Wundheilung ergeben.given. It follows that wound dressings with an absorbent layer made of a foamed, addition-crosslinked silicone rubber are ideal conditions for result in wound healing.
vernetztem Silicon-Kautschuk als Saugschicht wird die Saugschicht mit einem Kapillarwirkungseffekt versehen, der ein Aufsaugen der Gewebeflüssigkeit aus der Wunde ermöglicht Diese Gewebeflüasigkeit wird durch die in der Saugschicht ausgebildeten Kapillarkanälchencross-linked silicone rubber as an absorbent layer is the Absorbent layer provided with a capillary effect that absorbs the tissue fluid from the Wound enables this tissue fluid is through the capillary tubules formed in the absorbent layer bis in die Saug-Speicher-Schicht befördert, die aus einem stark hygroskopisch wirkenden Material besteht und somit die Eigenschaft hat, die Flüssigkeit auszusaugen und zu speichern mit der Folge, daß bei der Ausübung eines Druckes auf die Saugschicht Gewebeflüs-conveyed into the suction storage layer, which consists of a strongly hygroscopic material and thus has the property of sucking out the liquid and storing it, with the result that when pressure is exerted on the absorbent layer, tissue flow sigkeit nicht heraustreten kann, da diese von der Saug-Speicher-Schicht aufgesogen und in dieser Schicht festgehalten wird. Durch das in der Saugschicht ausgebildete Kapillar-Wirkungs-System nimmt diese eine bestimmte Menge Gewebeflüssigkeit auf, die jedoch beifluid cannot emerge, as it is absorbed by the suction-storage layer and retained in this layer. Due to the capillary action system formed in the absorbent layer, it absorbs a certain amount of tissue fluid, which, however, takes place at Bewegung und Druck nicht aus dem als Schwamm wirkenden Kompressionsteil herausgedrückt werden kann, da die Gewebeflüssigkeit von der Saug-Speicher-Schicht aufgenommen und in dieser festgehalten wird. Vorteilhafte Ausgestaltungen der Erfindung sind inMovement and pressure cannot be squeezed out of the compression part, which acts as a sponge, because the tissue fluid is absorbed by the suction storage layer and retained in it. Advantageous embodiments of the invention are shown in den Unteransprüchen gekennzeichnet.characterized the subclaims.
In der Zeichnung ist der Gegenstand der Erfindung beispielsweise dargestellt, und zwar zeigtIn the drawing, the object of the invention is shown for example, namely shows
Fig. 1 eine kissenförmig ausgebildete Wundauflage in einer Ansicht von oben und 1 shows a cushion-shaped wound pad in a view from above and FIG
Fig.2 einen senkrechten Schnitt gemäß Linie 11-11 in F i g. I in einer vergrößerten Wiedergabe.2 shows a vertical section along line 11-11 in F i g. I in an enlarged reproduction.
Die beispielsweise in Form eines Kissens 10 ausgebildete Wundaufiage 100 besteht gcmSß Fig. I und 2 aus einer Saugschicht 20 ims einem geschäumten, additions-The wound pad 100, for example in the form of a pillow 10, consists of FIGS. 1 and 2 an absorbent layer 20 in a foamed, addition-
h'i vcrnci/len Silicon-Kautschuk, der der Saugschichi 20 einen Kapillarwirkungscffckt verleiht. Dieser Kapillar-Wirkungseffekt wird bei der Verwendung eines geschäumten, additionsvernetzten Silicon-Kautschuks er-h'i vcrnci / len silicone rubber that the absorbent layer 20 gives a capillary effect. This capillary effect is achieved when a foamed, addition-crosslinked silicone rubber is used.
halten, jedoch besteht auch die Möglichkeit, einen additionsvernetzten Silicon-Kautschuk-Schaum zu verwenden, in dem feinste, nebeneinander angeordnete Kapillar-Röhrchen ausgebildet sind, so daß aufgrund der Kapillarwirkung bei dünnen Röhrchen ein Saugeffekt erhalten wird. Diese saugfähigen Kapillarkanälchen bzw. -röhrchen sind in F i g. 2 bei 25 angedeutethold, but there is also the possibility of an addition-crosslinked To use silicone rubber foam in the finest, juxtaposed capillary tubes are designed so that a suction effect is obtained due to the capillary effect in the case of thin tubes will. These absorbent capillary tubules or tubes are shown in FIG. 2 indicated at 25
Mit in die Saugschicht 20 ist eine Saug-Speicher-Schicht30 mit einsteschäumt, die aus einem stark hygroskopisch wirkenden Material, wie z. B. Zellstoff od. dgl. besteht, wobei jedoch auch andere Stoffe und chemische Verbindungen verwendet werden können, die stark hygroskopisch wirkende Eigenschaften aufweisen. Die Saug-Speicher-Schicht 30 is: in die Saugschicht 20 beispielsweise in Form von streifenförmigen Abschnitten 30a integriert, wobei es vorteilhaft ist, diese Saug-Speicher-Schicht 30 im Randbereich der Saugschicht 20 anzuordnen, worauf nachstehend noch näher eingegangen wird. Anstelle von streifenförmigen Abschnitten 30a kann die Saug-Speicher-Schicht 30 aus perlformartigen Körpern 306 bestehen, die über den innenraum der Saugschicht 20 verteilt in dieser mit eingeschäu^it sind. Auch eine flächenmäßige Ausbildung, beispielsweise in Form einer Zwischenschicht mit Saug- und Speicherschichteigenschaften ist möglich. Darüber hinaus können auch gitterförmig ausgebildete Saug-Speicher-Schichten verwendet werden, wobei das Gitter dann ebenfalls aus stark hygroskopisch wirkendem Material besteht.Also in the absorbent layer 20 is an absorbent storage layer 30 with foamed, which comes from a strongly hygroscopic acting material, such. B. od pulp. Like. There are, however, other substances and chemical Compounds can be used that have strongly hygroscopic properties. the Absorbent storage layer 30 is: in the absorbent layer 20, for example in the form of strip-shaped sections 30a integrated, it being advantageous to use this suction storage layer 30 to be arranged in the edge region of the absorbent layer 20, which will be discussed in greater detail below will. Instead of strip-shaped sections 30a, the suction-storage layer 30 can be made of pearl-shaped Bodies 306 are made over the interior of the Absorbent layer 20 are distributed in this with foamed. Also a two-dimensional design, for example in the form of an intermediate layer with suction and storage layer properties is possible. In addition, suction storage layers designed in the form of a grid can also be used can be used, the grid then also made of a strongly hygroscopic material consists.
Die Saugschicht 20 der Wundauflage 100 ist einseitig mit einer Abdichtschicht 40 abgedeckt, die den Innenraum der Saugschicht 20 außenseitig abdichtet. Diese Abdichtschicht 40 besteht vorzugsweise ebenfalls aus additionsvernetztem, homogenem Silicon-Kautschuk, wodurch die Wirkung des Saugmaterials noch wesentlieh verbessert wird. Die Saug-Speicher-Schicht 30 ist dann in der Saugschicht 20 benachbart zur Abdichtschicht 40 angeordnet, wobei die Abdichtschicht 40 den äußeren Abschluß der Wundauflage darstellt. Diese Abdichtschicht b^w. -haut 40 und die Saugschicht 20 sind über eine bei 50 in F i g. 1 angedeutete Verzapfung miteinander verbunden.The absorbent layer 20 of the wound pad 100 is covered on one side with a sealing layer 40, which covers the interior the absorbent layer 20 seals on the outside. This sealing layer 40 preferably also consists of addition-crosslinked, homogeneous silicone rubber, which makes the effect of the absorbent material even more essential is improved. The suction storage layer 30 is then in the suction layer 20 adjacent to the sealing layer 40 arranged, wherein the sealing layer 40 represents the outer closure of the wound dressing. This sealing layer b ^ w. skin 40 and the absorbent layer 20 are about one at 50 in FIG. 1 indicated mortise connected to each other.
Der Schwammeffekt der Saugschicht 20 ist in F i g. 2 bei 20a angedeutetThe sponge effect of the absorbent layer 20 is shown in FIG. 2 indicated at 20a
Um den Saugeffekt der Saug-Speicher-Schicht 30 zu erhöhen, kann in der Abdichtschicht 40 der Wundauflage ein Absaugventil 60 vorgesehen sein, so daß die Saug-Speicher-Schicht 30 mit einem leichten Vak'jum versehen werden kann, was durch Verwendung z. B. eines kleinen Gummiballes oder Gummikissens als Absaugventil 40 erhältlich ist, der mit in die Abdichtschicht 40 so eingearbeitet ist, daß er überhaupt nicht aufträgt (F i g. 2). Durch Einwirkung eines Druckes auf den Gummiball oder -kissen und Aufhebung des Druckes wird nach erfolgter Überführung des Gummiballes oder -kissens in seine Ausgangsstellung das jeweils gewünschte Vakuum erzeugt. Aufgrund des vorgesehenen Rückschlagventils wird eine Verbindung zur Außenluft verhindert, so daß das ausgebildete Vakuum in der Saug-Speicher-Schicht 30 erhalten bleibt. μIn order to increase the suction effect of the suction-storage layer 30, the wound pad can be placed in the sealing layer 40 a suction valve 60 can be provided so that the suction storage layer 30 with a slight vacuum can be provided what by using z. B. a small rubber ball or rubber cushion as a suction valve 40 is available, which is incorporated into the sealing layer 40 so that it does not apply at all (Fig. 2). By applying pressure to the rubber ball or cushion and releasing the pressure becomes the desired one after the rubber ball or cushion has been transferred to its starting position Vacuum created. Due to the non-return valve provided, there is a connection to the outside air prevented, so that the vacuum formed in the suction storage layer 30 is maintained. μ
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3032092A DE3032092C2 (en) | 1980-08-26 | 1980-08-26 | Wound pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3032092A DE3032092C2 (en) | 1980-08-26 | 1980-08-26 | Wound pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3032092A1 DE3032092A1 (en) | 1982-04-01 |
| DE3032092C2 true DE3032092C2 (en) | 1984-10-25 |
Family
ID=6110402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3032092A Expired DE3032092C2 (en) | 1980-08-26 | 1980-08-26 | Wound pad |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3032092C2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9205001B2 (en) | 2002-10-28 | 2015-12-08 | Smith & Nephew Plc | Apparatus for aspirating, irrigating and cleansing wounds |
| US9220822B2 (en) | 2007-11-21 | 2015-12-29 | Smith & Nephew Plc | Wound dressing |
| US9452248B2 (en) | 2003-10-28 | 2016-09-27 | Smith & Nephew Plc | Wound cleansing apparatus in-situ |
| US10231875B2 (en) | 2007-11-21 | 2019-03-19 | Smith & Nephew Plc | Wound dressing |
| US11701266B2 (en) | 2007-11-21 | 2023-07-18 | Smith & Nephew Plc | Vacuum assisted wound dressing |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0100148B1 (en) * | 1982-07-06 | 1986-01-08 | Dow Corning Limited | Medical-surgical dressing and a process for the production thereof |
| AU4705185A (en) * | 1984-09-05 | 1986-03-27 | Smith & Nephew Associated Companies Plc | Medical device, its preparation and use |
| GB2192142B (en) * | 1986-07-04 | 1990-11-28 | Johnson & Johnson | Wound dressing |
| US5895656A (en) * | 1996-10-18 | 1999-04-20 | Life Medical Sciences, Inc. | Gas or gel-filled silicone cushion for treatment of keloid and hypertrophic scars |
| US7909805B2 (en) | 2004-04-05 | 2011-03-22 | Bluesky Medical Group Incorporated | Flexible reduced pressure treatment appliance |
| US10058642B2 (en) | 2004-04-05 | 2018-08-28 | Bluesky Medical Group Incorporated | Reduced pressure treatment system |
| GB0606661D0 (en) | 2006-04-03 | 2006-05-10 | Brightwake Ltd | Improvements relating to dressings |
| US9061095B2 (en) | 2010-04-27 | 2015-06-23 | Smith & Nephew Plc | Wound dressing and method of use |
| GB2493960B (en) | 2011-08-25 | 2013-09-18 | Brightwake Ltd | Non-adherent wound dressing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB898826A (en) * | 1959-01-16 | 1962-06-14 | Nobuhisa Kawaguchi | Method for the preparation of therapeutic non-adhesive, ventilating materials |
-
1980
- 1980-08-26 DE DE3032092A patent/DE3032092C2/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9205001B2 (en) | 2002-10-28 | 2015-12-08 | Smith & Nephew Plc | Apparatus for aspirating, irrigating and cleansing wounds |
| US10278869B2 (en) | 2002-10-28 | 2019-05-07 | Smith & Nephew Plc | Apparatus for aspirating, irrigating and cleansing wounds |
| US9452248B2 (en) | 2003-10-28 | 2016-09-27 | Smith & Nephew Plc | Wound cleansing apparatus in-situ |
| US9220822B2 (en) | 2007-11-21 | 2015-12-29 | Smith & Nephew Plc | Wound dressing |
| US10231875B2 (en) | 2007-11-21 | 2019-03-19 | Smith & Nephew Plc | Wound dressing |
| US11701266B2 (en) | 2007-11-21 | 2023-07-18 | Smith & Nephew Plc | Vacuum assisted wound dressing |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3032092A1 (en) | 1982-04-01 |
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