DE19844355A1 - Adhesive wound dressing of flexible, membrane like material penetrable by air comprises integrated device which drains wound secretions or produces reduced pressure, or can be connected to an external suction system - Google Patents

Adhesive wound dressing of flexible, membrane like material penetrable by air comprises integrated device which drains wound secretions or produces reduced pressure, or can be connected to an external suction system

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Publication number
DE19844355A1
DE19844355A1 DE1998144355 DE19844355A DE19844355A1 DE 19844355 A1 DE19844355 A1 DE 19844355A1 DE 1998144355 DE1998144355 DE 1998144355 DE 19844355 A DE19844355 A DE 19844355A DE 19844355 A1 DE19844355 A1 DE 19844355A1
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DE
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Patent type
Prior art keywords
wound
wound dressing
characterized
dressing according
connected
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.)
Withdrawn
Application number
DE1998144355
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German (de)
Inventor
Rainer E Sachse
Original Assignee
Rainer E Sachse
Priority date (The priority date 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 date listed.)
Filing date
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/02Adhesive plasters or dressings
    • A61F13/0203Adhesive plasters or dressings having a fluid handling member
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/008Drainage tubes; Aspiration tips
    • A61M1/0088Drainage tubes; Aspiration tips with a seal, e.g. to stick around a wound for isolating the treatment area
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00089Wound bandages
    • A61F2013/0017Wound bandages possibility of applying fluid
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F2013/00361Plasters
    • A61F2013/00365Plasters use
    • A61F2013/00412Plasters use for use with needles, tubes or catheters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M27/00Drainage appliances for wounds or the like, i.e. wound drains, implanted drains

Abstract

Adhesive wound dressing made from flexible, membrane like material (1) penetrable by air comprises (either at its center or on its periphery) an integrated device (3) which drains wound secretions (6) or produces a reduced pressure, or can be connected to an external suction system.

Description

Die Aufgabe eines Wundverbandes besteht im Schutz der Wunde vor Verschmut zung und Kontamination von außen und Gestaltung eines für die Wundheilung günstigen Milieus. The task of a wound dressing is to protect the wound against dirt and contamination from outside and create a favorable environment for wound healing. Dabei ist es günstig, wenn überschüssige Wundsekretionen aus der Wunde entfernt werden, da diese durch Substratakkumulation einen guten Nährboden für eine Infektion darstellen und Wundinfektionen fördern. It is advantageous when excess wound secretions are removed from the wound, as these are by substrate accumulation a good breeding ground for infection and promote wound infections. - Eine wei tere Funktion eines Wundverbandes ist es dabei, die Wunde möglichst vor chemi schen und mechanischen Einflüssen zu schützen und andererseits eine Ver schmutzung der Umgebung durch Wundsekret zu verhindern. - is a white direct function of a wound dressing is to protect the wound as possible predominate chemical and mechanical influences and secondly a United pollution of the environment by preventing wound secretion. - -

Eine sehr große Anzahl unterschiedlicher Wundverbände wurden dabei im Laufe der Zeit entwickelt, angefangen von osmotisch aktiven Verbänden, wie Honig oder Perubalsam, die dann evtl. mit einem saugfähigen Material abgedeckt wurden, bis hin zu dem derzeit wohl modernsten Konzept der Wundabdeckung mit einer semi permeablen Membran, die mit einem Adhäsiv versehen ist. A very large number of different wound dressings were there developed over time, ranging from osmotically active associations, like honey or balsam of Peru, which then might have been covered with an absorbent material to the currently most modern concept of wound dressing with a semi-permeable membrane which is provided with an adhesive. Nachteile der absor bierenden Verbände ist dabei die Tatsache, daß diese Verbände die Wunde aus trocknen können, was für die Reepithelisierung und Wundheilung von Nachteil ist. Disadvantages of sublingually-absorbing associations is the fact that these associations can dry the wound, which is responsible for the re-epithelialization and wound healing disadvantage. Im Gegensatz dazu haben semi-permeable oder feuchtigkeits-undurchlässige Ver bände den Vorteil, daß sie eine Reepithelisierung der Wunde fördern, andererseits kommt es oft zu der oben erwähnten Akkumulation von Wundsekret mit darauffol gender Infektionsbildung. In contrast, semi-permeable or moisture-impermeable United have associations the advantage that they promote re-epithelialization of the wound, on the other hand, there is often the aforementioned accumulation of wound exudate with darauffol gender infectious form. Eine in jüngerer Zeit angewandte Methode der Wund behandlung löst dieses Problem durch Abdecken der Wunde mit einer Membran mit darunterliegendem Saugschlauch, der entweder durch einen Stichkanal durch gesunde Haut oder aber zwischen der Haut und der Membran von der Wunde wegführt. An applied more recently method of wound treatment solves this problem by covering the wound with a membrane with underlying suction hose leading away either through a branch canal through healthy skin or between the skin and membrane from the wound. Diese Methode, bei der die Wundheilung wahrscheinlich außerdem auch durch den auf die Wunde einwirkenden Unterdruck gefördert wird, hat jedoch den Nachteil, daß entweder gesundes Gewebe verletzt und dem Risiko einer Infek tion ausgesetzt wird, oder bei Ableitung zwischen der r Haut und dem Wundver band ein luft- und sekretdichter Abschluß meistens nur extrem schwer zu errei chen ist. This method, in which wound healing is probably also promoted by the pressure acting on the wound vacuum, but has the disadvantage that either healthy tissue injured and the risk of infec is exposed tion, or derivation between the r skin and the Wundver ribbon chen is usually extremely difficult to Errei an air and secretions tight seal.

Dieses Problem wird erfindungsgemäß nach Anspruch 1 dadurch gelöst, daß eine Absaugung für Wundsekret in den Verband integriert wird. This problem is solved in accordance with the invention according to claim 1, that a suction device for wound exudate into the dressing is integrated. Durch einen Ventilme chanismus kann außerdem ein Reflux des Wundsekrets mit aufsteigender Infektion verhindert werden, während der Drainagebehälter gewechselt wird. By a mechanism Ventilme a reflux of the wound secretion with ascending infection can also be prevented, while the drainage container is changed. Darüber hinaus besteht nach Anspruch 8 auch die Möglichkeit, in den Verband auch einen kompletten Absaugmechanismus für Wundsektret zu integrieren. Moreover, there is according to claim 8, the ability to integrate a complete suction mechanism for Wundsektret into the dressing.

Zu weiteren Ausgestaltungen und Merkmalen der Erfindung wird auf die übrigen Unteransprüche sowie auf die nachfolgende Beschreibung und auf die zugehöri gen Zeichnungen von erfindungsgemäßen Ausführungsmöglichkeiten bezugge nommen. Other embodiments and features of the invention will be among the remaining claims and to the following description and to the drawings of the invention related contractual possible embodiments bezugge taken. In den Zeichnungen zeigen, und zwar jeweils in einem Längsschnitt: In the drawings, in each case in a longitudinal section:

Fig. 1 den prinzipiellen Aufbau der Erfindung und seine typische Anwendungs applikation mit externem Absaugsystem. Fig. 1 shows the basic structure of the invention and its typical application application with external extraction system.

Fig. 2 den prinzipiellen Aufbau des Verbandes mit komplett integrierter Absau gung von Wundsekret ohne externes Absaugsystem. Fig. 2 shows the basic structure of the association with a fully integrated Absau supply of wound exudate without an external suction system.

Der Wundverband besteht aus einer luftdichten Membran 1 , die an ihrer Unter seite mit einer Adhäsivschicht oder einem Gel 2 versehen ist. The wound dressing consists of an airtight membrane 1 is provided on its underside with an adhesive layer or a gel. 2 In der Mitte dieser Membran befindet sich ein vorzugsweise aus einem weichen Elastomer gefertigter Drainagekörper 3 , welcher an seiner Unterseite multiple Perforationen 4 aufweist. In the center of this diaphragm is a preferably made of a soft elastomer manufactured drainage body 3, which has multiple perforations on its underside. 4 Beide Elemente 1 und 3 sind miteinander funktionell fest verbunden. Both elements 1 and 3 are connected functionally firmly connected. Die Membran ist mit dem Adhäsiv 2 auf der Hautoberfläche 5 luftdicht befestigt. The membrane is airtightly fixed with the adhesive 2 on the skin surface. 5 Wundsekret 6 , welches sich unter der Membran ansammelt tritt durch die Perforationen 4 in den Drainagekörper 3 ein. Wound exudate 6 which enters accumulates under the membrane through the perforations 4 in the drainage body. 3 Über das Ausleitungsstück 10 , welches ein integriertes Ventil 7 haben kann, ist der Drainagekörper 3 mit einem Schlauch 8 mit einem ex ternen, nicht dargestellten Unterdrucksystem verbunden. About the Ausleitungsstück 10, which may have an integrated valve 7, the drainage body 3 vacuum system, not shown, is provided with a hose 8 with an ex ternal connected. Dieses besteht typi scherweise aus einem Reservoir für Wundsekret und einer regelbaren Unter druckpumpe oder aus einem Unterdruck erzeugenden Behälter. This is typi cally from a reservoir for wound exudate and controllable negative pressure pump or generated from a vacuum reservoir.

Bei der Anwendung wird der beschriebene Wundverband über der Wundfläche 9 angebracht, und randdicht mit der Hautoberfläche 5 verklebt. In the application of the wound dressing over the wound surface 9 described above is mounted and edge sealed to the skin surface 5 bonded. Nach Anschluß an eine Unterdruckquelle wird Wundsekret 6 durch die Perforationen 4 , den Draina gekörper 3 , das Ausleitungsstück 10 , sowie das Ventil 7 und den Schlauch 8 gezo gen. Bei Ausfall des Unterdrucks oder bei Wechsel des Schlauches 8 verhindert das Ventil 7 , daß Wundsekret oder Luft in die Wunde zurückgezogen wird. After connection to a source of negative pressure wound fluid 6 through the perforations 4, called the Draina gekörper 3, Ausleitungsstück 10 and the valve 7 and the hose 8 Gezo. In case of failure of the negative pressure or change of the hose 8, the valve 7 prevents wound fluid or air is drawn back into the wound.

Fig. 2. zeigt ein Beispiel für einen Wundverband mit komplett integrierter Absau gung wobei jedoch der Unterdruck nicht wie in Fig. 1 durch eine externe Saugung erzeugt wird. Fig. 2. shows an example of a wound dressing with a fully integrated Absau supply but the vacuum is not generated as shown in FIG. 1 by an external suction. Der Unterdruck kommt hierbei durch die Expansionstendenz eines zuvor komprimierten Schwammes zustande. The vacuum comes into being here by the expansion tendency of a previously compressed sponge.

Über der Membran 1 , die im Zentrum eine Öffnung 20 besitzt, befindet sich ein vorkomprimierter Schwamm 21 , der von einer expandierbaren luftundurchlässi gen Membran 22 umgeben ist. Across the membrane 1 which has an opening 20 in the center, there is a pre-compressed sponge 21, which is surrounded by an expandable membrane luftundurchlässi gen 22nd Unter der Öffnung 20 ist eine weitere wasserlösli che Membran 23 , vorhanden, welche eine vorzeitige Expansion des Schwammes vor der Anwendung verhindert. Under the opening 20 is another wasserlösli che diaphragm 23 present, which prevents premature expansion of the sponge before application. Nach Aufbringen des Wundverbandes auf die Wunde 9 löst sich die wasserlösliche Membran 23 auf, wodurch der durch den Schwamm 21 erzeugte Unterdruck auf die Wundfläche wirken kann. After application of the wound dressing to the wound 9, the water-soluble membrane 23 dissolves, whereby the negative pressure produced by the sponge 21 can act on the wound surface. Gleichzeitig wird Wundsekret 6 in den Schwamm 21 hinein gesaugt. Simultaneously wound secretion to be sucked into the sponge 21. 6

In einem ähnlichen, nicht dargestellten Ausführungsbeispiel erfolgt die Kompres sion des Schwammes 21 erst bei der Applikation des Verbandes, so daß die Ver wendung einer löslichen Membran 9 nicht nötig ist. In a similar, non-illustrated embodiment, the compres sion takes place of the sponge 21 only during application of the dressing, so that the application of a soluble Ver membrane 9 is not necessary. Hierbei wird beim Anlegen des Verbandes der Schwamm dadurch komprimiert, dass er über der Wundfläche durch Druck auf die expandierbare Membran 22 zusammengedrückt wird. Here is compressed thereby upon application of the association of sponge, that it is compressed over the wound surface by pressure on the expandable diaphragm 22nd

Bezugszeichenliste LIST OF REFERENCE NUMBERS

1 1

Kunststoffmembran, Plastic membrane,

2 2

Adhäsivschicht adhesive layer

3 3

Drainagekörper drainage body

4 4

Perforationen perforations

5 5

Hautoberfläche skin surface

6 6

Wundsekret wound secretion

7 7

Ventil Valve

8 8th

Schlauch tube

9 9

Wundfläche wound surface

10 10

Ausleitungsstück Ausleitungsstück

11 11

Unterhautfettgewebe Subcutaneous fat

20 20

Öffnung opening

21 21

Vorkomprimierter Schwamm pre-compressed sponge

22 22

Expandierbare, wasserfeste, luftundurchlässige Membran Expandable, waterproof, air impermeable membrane

23 23

Wasserlösliche luftundurchlässige Membran Water-soluble air-impermeable membrane

Claims (11)

  1. 1. Verband bestehend aus einer flexiblen, luftundurchlässigen mit einem Adhäsiv 2 versehenen elastischem membranartigen Material 1 , dadurch gekenn zeichnet , daß dieser Verband in seinem Zentrum oder auch peripher mit einer in tegrierten Vorrichtung für Drainage des Wundsekretes oder zur Erzeugung eines Unterdruckes versehen ist, bzw. über diese an ein peripheres Absaugsystem ange schlossen werden kann. 1. bandage comprising a flexible, air-impermeable with an adhesive 2 provided elastic membrane-like material 1, characterized in that this association is also provided at its center or peripherally with an in tegrated device for drainage of wound secretion, or for generating a negative pressure, or can be concluded is. this to a peripheral suction system.
  2. 2. Wundverband nach Anspruch 1, dadurch gekennzeichnet, daß das Drainagesystem mit einem Ventil 7 versehen ist. 2. A wound dressing according to claim 1, characterized in that the drainage system is provided with a valve. 7
  3. 3. Wundverband nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Adhäsion zur Wundfläche durch eine Gelschicht erzeugt wird, die ein leichte res Entfernen desselbigen ohne Schädigung des Epithels erlaubt. 3. A wound dressing according to claim 1 and 2, characterized in that the adhesion to the wound surface is produced by a gel layer, the desselbigen a slight res removing permitted without damage to the epithelium.
  4. 4. Wundverband nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß das Drainagesystem mit einer gerinnungshemmenden Substanz versehen ist und/oder die Wände eine besondere Beschichtung aufweisen, welche Anhaften von Partikeln verhindert. 4. A wound dressing according to claim 1 to 3, characterized in that the drainage system is provided with an anticoagulant substance and / or the walls have a particular coating which prevents adhesion of particles.
  5. 5. Wundverband nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß der Wundverband mit 2 oder mehr Drainagesystemen versehen ist, die unterein ander verbunden sein können. 5. A wound dressing according to claim 1 to 4, characterized in that the wound dressing having 2 or more drainage systems is provided which can be connected unterein other.
  6. 6. Wundverband nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß er an der zur Wunde liegenden Seite in seinem Zentrum mit einem porösen oder absorbierenden Material verbunden ist. 6. A wound dressing according to claim 1 to 5, characterized in that it is connected to the underlying side of the wound at its center with a porous or absorbent material.
  7. 7. Wundverband nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß er aus mehreren Teilen besteht, die erst kurz vor der Applikation vom Anwender zusammengebaut werden. 7. A wound dressing according to claim 1 to 6, characterized in that it consists of several parts which are assembled by the user just prior to application.
  8. 8. Wundverband nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß die gesamte Saugvorrichtung in den Verband integriert ist, z. 8. A wound dressing according to claim 1 to 7, characterized in that the entire suction device is integrated into the dressing, for example. B. in Form eines vorkomprimierten, sich expandierenden Schwamm, welcher gegebenenfalls von einer wasserlöslichen Membran 23 im komprimierten Zustand gehalten werden B. in the form of a pre-compressed, the expanding sponge, which are optionally held by a water soluble membrane 23 in the compressed state
  9. 9. Wundverband nach Anspruch 1-8, dadurch gekennzeichnete daß der Ableitungsteil 10 über einen Ansatzstutzen zur Applikation von therapeutisch wirksamen Substanzen wie Medikamenten oder Spülflüssigkeiten verfügt. 9. A wound dressing according to claim 1-8, characterized in that the labeled derivative part 10 has an extension pipe for administration of therapeutically effective substances, such as drugs or irrigation fluids.
  10. 10. Wundverband nach Anspruch 1-9, dadurch gekennzeichnet, daß der Verband ein mechanisches federndes Element enthält, welches einen Un terdruck erzeugt. 10. A wound dressing according to claim 1-9, characterized in that the dressing includes a mechanical spring element which generates a Un terdruck. (Saugglockenprinzip). (Saugglockenprinzip).
  11. 11. Wundverband nach Anspruch 1-9, dadurch gekennzeichnet, daß der Verband ein mechanisch stabiles Element enthält, welches einer Anlegung an die Wundoberfläche eine Kraft entgegensetzt wodurch eine Formgebung der Wunde ermöglicht wird. 11. A wound dressing according to claim 1-9, characterized in that the dressing includes a mechanically stable element, which enables an application to the wound surface, a force which opposes a shaping of the wound.
DE1998144355 1998-09-28 1998-09-28 Adhesive wound dressing of flexible, membrane like material penetrable by air comprises integrated device which drains wound secretions or produces reduced pressure, or can be connected to an external suction system Withdrawn DE19844355A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998144355 DE19844355A1 (en) 1998-09-28 1998-09-28 Adhesive wound dressing of flexible, membrane like material penetrable by air comprises integrated device which drains wound secretions or produces reduced pressure, or can be connected to an external suction system

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Application Number Priority Date Filing Date Title
DE1998144355 DE19844355A1 (en) 1998-09-28 1998-09-28 Adhesive wound dressing of flexible, membrane like material penetrable by air comprises integrated device which drains wound secretions or produces reduced pressure, or can be connected to an external suction system

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