ES2258748T3 - Paño quirurgico. - Google Patents
Paño quirurgico.Info
- Publication number
- ES2258748T3 ES2258748T3 ES04009482T ES04009482T ES2258748T3 ES 2258748 T3 ES2258748 T3 ES 2258748T3 ES 04009482 T ES04009482 T ES 04009482T ES 04009482 T ES04009482 T ES 04009482T ES 2258748 T3 ES2258748 T3 ES 2258748T3
- Authority
- ES
- Spain
- Prior art keywords
- adhesive
- cloth
- film
- coated
- protective layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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- 239000000853 adhesive Substances 0.000 claims abstract description 43
- 230000001070 adhesive effect Effects 0.000 claims abstract description 43
- 239000010410 layer Substances 0.000 claims abstract description 22
- 239000011241 protective layer Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000002985 plastic film Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 8
- 229920002457 flexible plastic Polymers 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229920006255 plastic film Polymers 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 abstract description 9
- 239000004033 plastic Substances 0.000 abstract description 7
- 230000001681 protective effect Effects 0.000 abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 description 29
- 206010052428 Wound Diseases 0.000 description 28
- 239000006260 foam Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
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- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
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- 239000002313 adhesive film Substances 0.000 description 1
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- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011866 long-term treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 239000004814 polyurethane Substances 0.000 description 1
- 229920006264 polyurethane film Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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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
- A61F13/023—Adhesive bandages or dressings wound covering film layers without a fluid retention layer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B46/00—Surgical drapes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B46/00—Surgical drapes
- A61B46/20—Surgical drapes specially adapted for patients
- A61B46/23—Surgical drapes specially adapted for patients with means to retain or hold surgical implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
- A61M1/91—Suction aspects of the dressing
- A61M1/912—Connectors between dressing and drainage tube
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B46/00—Surgical drapes
- A61B46/20—Surgical drapes specially adapted for patients
- A61B2046/205—Adhesive drapes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B46/00—Surgical drapes
- A61B46/20—Surgical drapes specially adapted for patients
- A61B46/23—Surgical drapes specially adapted for patients with means to retain or hold surgical implements
- A61B2046/236—Surgical drapes specially adapted for patients with means to retain or hold surgical implements with means for collecting drain fluid, e.g. drain tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/005—Auxiliary appliance with suction drainage system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/84—Drainage tubes; Aspiration tips
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Materials For Medical Uses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Adhesive Tapes (AREA)
- External Artificial Organs (AREA)
- Surgical Instruments (AREA)
- Massaging Devices (AREA)
Abstract
Un paño quirúrgico, que comprende una película (21) delgada y flexible de plástico revestida con adhesivo y una capa (24) protectora liberable aplicada al revestimiento adhesivo, y al menos un primer borde del paño que tiene una barra de manipulación (23) no revestida con adhesivo para separar la película revestida con adhesivo de la capa protectora, caracterizado porque el paño tiene una abertura (25) al menos a través de la película revestida con adhesivo para permitir, en uso, el acceso a una zona de herida, y en el que la capa protectora comprende una tira separada que se extiende paralela al primer borde del paño, y que protege el revestimiento adhesivo en la región de la abertura (25) y porta al menos un ala (27) que solapa la porción adyacente de la capa protectora, constituyendo dicho ala un asidero para facilitar la retirada de dicha tira antes del uso.
Description
Paño quirúrgico.
Esta invención se refiere a paños quirúrgicos
para tratamiento de heridas.
Los paños quirúrgicos se usan ampliamente en
operaciones quirúrgicas con el fin de reducir las infecciones y
facilitar la manipulación de la piel alrededor de las incisiones.
Normalmente, son transparentes o translúcidos. Típicamente,
consisten en una película flexible de plástico que está revestida
con adhesivo y que se aplica a la zona de la operación, antes de
realizar la incisión. Los paños quirúrgicos se usan también para
fijar dispositivos de tratamiento a pacientes después de una
operación, tales como catéteres o tubos de drenaje.
Un uso adicional, recientemente desarrollado, es
para la conexión de un tubo de aspiración a una herida con el fin de
estimular la cicatrización de la misma. Se describe tal uso en
nuestras solicitudes PCT anteriores números WO 96/05873 y WO
97/18007.
En el pasado, se han hecho diversas propuestas
para diseñar el paño quirúrgico, de manera que se facilite la
manipulación de la película cohesiva y flexible de plástico. Por
ejemplo, la patente de EE.UU. número 5.437.622, que revela el
preámbulo de la reivindicación 1, describe un paño quirúrgico que es
un estratificado de tres materiales. El primer material comprende
una película delgada y transparente de plástico que está revestida
con adhesivo y la misma está protegida con una capa de papel
revestido de liberación. La otra cara de la película revestida con
adhesivo está reforzada con una capa de refuerzo de una película
menos flexible de plástico. Las barras o tiras de manipulación están
fijadas a la película flexible de plástico en sus bordes laterales
para facilitar la manipulación de la película flexible de plástico,
después de arrancar la capa protectora liberable.
En el caso de que se desee usar un paño
quirúrgico para fijar principalmente un dispositivo, tal como un
catéter, a una zona de herida después de una operación, o para un
tratamiento a largo plazo, no es conveniente que el cirujano o la
enfermera tenga que adaptar un paño quirúrgico estándar para este
fin. Sería más conveniente tener un paño quirúrgico que fuera
adecuado, sin adaptación, para acomodar el dispositivo de
tratamiento.
Un aspecto de la presente invención está
dirigido a una solución para este problema.
Según la presente invención, se ha previsto un
paño quirúrgico que comprende una película delgada y flexible de
plástico revestida con adhesivo y una capa protectora liberable
aplicada al revestimiento adhesivo, teniendo el paño una abertura al
menos a través de la película revestida con adhesivo para permitir,
en uso, el acceso a una zona de herida, teniendo al menos un primer
borde del paño una barra de manipulación no revestida con adhesivo
para separar la película revestida con adhesivo de la capa
protectora, y en el que la capa protectora comprende una tira
separada que se extiende paralela al primer borde del paño, y que
protege el revestimiento adhesivo en la región de la abertura y
porta al menos un ala que solapa la porción adyacente de la capa
protectora, constituyendo dicho ala un mango para facilitar la
retirada de dicha tira antes del uso.
En la práctica, los paños quirúrgicos se pueden
fabricar laminando una película flexible revestida con adhesivo, tal
como una película de poliuretano, a una capa protectora liberable,
tal como un papel siliconado. Una capa de refuerzo de material
plástico más grueso, por ejemplo una poliolefina tal como
polietileno, se puede aplicar a la cara no revestida con adhesivo de
la película flexible, de manera que se produzca un estratificado de
tres capas. Estos estratificados se fabrican con una anchura
sustancial, y se pueden cortar en tiras longitudinalmente con la
anchura deseada y, luego, lateralmente para formar paños del tamaño
deseado.
Después de cortar en tiras con una anchura
deseada, las barras de manipulación se aplican normalmente a las
películas revestidas con adhesivo en uno o ambos bordes laterales
para facilitar la separación de la película de la capa protectora
liberable. Aunque se podría cortar una abertura en la posición
deseada a través de las capas para acomodar un catéter o un
dispositivo, tales como los descritos en nuestras solicitudes
anteriormente mencionadas, es difícil manipular la película
altamente flexible y adhesiva después de que ha sido arrancada la
capa liberable.
Aunque la capa de refuerzo mejora algo las
características de manipulación, ésta no es una respuesta completa
al problema. Sin embargo, las características de manipulación se
mejoran sustancialmente por la capa protectora, que está al menos en
dos porciones, de las que una tiene la forma de una tira, por
ejemplo, una que se extiende paralela a los bordes laterales del
paño, y que cubre la zona periférica alrededor de la abertura a
través del paño. Disponiendo un ala sobre esta porción de la capa
liberable, puede ser arrancada inicialmente, de manera que el paño
se sitúa primero alrededor del dispositivo que se ha de pasar a
través de la abertura y, luego, la parte restante de la capa
protectora liberable es arrancada para adherir el paño a la piel de
un paciente alrededor de la zona a tratar.
En una forma preferida de la invención, en la
que se aplica un tratamiento de presión negativa a una zona de
herida, el paño quirúrgico descrito anteriormente se combina con un
cabezal de aspiración que tiene una pieza conectora adaptada para
ser conectada a un tubo de aspiración. Así, en esta realización, el
cabezal de aspiración se puede adherir a la piel de un paciente en
la zona de la herida, después de retirar la tira de la capa
protectora liberable y, luego, la parte restante del paño se fija a
la piel de un paciente. De este modo, el cabezal de aspiración se
mantiene firmemente en su sitio y, al mismo tiempo, se sella el
mismo a la zona de herida e impide la fuga de aire desde la
atmósfera a la zona de herida.
El paño de la invención se usa, preferiblemente,
en combinación con un cabezal de aspiración que tiene un diseño que
facilita la aspiración de fluido desde una zona de herida, que se ha
reivindicado en la solicitud principal EP 1018967. La solicitud EP
1018967 se refiere a un cabezal de aspiración para aplicar
aspiración a una zona de herida, que comprende una porción de
reborde generalmente plana y una pieza conectora tubular sobre una
primera cara, para conectar un tubo de aspiración a una abertura a
través de la porción de reborde a la otra cara, teniendo dicha otra
cara unos salientes que definen unos canales de circulación que
facilitan el flujo de fluido hacia dicha abertura.
Preferiblemente, el cabezal de aspiración
descrito anteriormente se combina con el paño quirúrgico de la
presente invención, extendiéndose la pieza conectora tubular a
través de la abertura en la película de plástico, con el adhesivo
revestido y adherido a dicha primera cara de la porción de
reborde.
Preferiblemente, el cabezal de aspiración se usa
en unión con una almohadilla de espuma de celda abierta, de manera
que una superficie de la almohadilla de espuma está colocada en
contacto con una zona de herida, y el cabezal de aspiración aplicado
a la otra superficie de la almohadilla de espuma. En el caso de
heridas profundas, la espuma puede estar conformada y colocada de
manera que esté obturada en la cavidad de herida, como se describe
en nuestras solicitudes PCT anteriormente citadas. Según otra
técnica, que es particularmente aplicable a heridas superficiales,
la almohadilla de espuma puede ser una almohadilla relativamente
delgada que se coloca sobre la herida. El cabezal de aspiración se
coloca en contacto con la cara abierta de la almohadilla de espuma,
y el paño se aplica sobre el cabezal de aspiración para fijar el
conjunto a la piel de un paciente.
Se pueden usar diversos tipos de espumas de
celda abierta, como se describe en nuestras solicitudes PCT
anteriormente citadas. La espuma puede ser una espuma de poliuretano
pero se prefieren espumas de poliacetato de vinilo (pva),
especialmente cuando se usan como una almohadilla que se coloca
sobre la herida. Éstas son, en cierta medida, hidrófilas, lo que
parece presentar propiedades beneficiosas de confort cuando se
aplican a la piel. Se estimula la cicatrización de las heridas por
el mantenimiento de condiciones de humedad en la zona de herida, y
esto se facilita usando una espuma hidrófila.
Las propiedades y ventajas adicionales de la
presente invención resultarán evidentes a partir de la descripción
siguiente y los dibujos que se acompañan, de ejemplos no limitativos
de acuerdo con la invención.
Haciendo referencia a los dibujos que se
acompañan:
la figura 1 representa un diseño convencional de
paño quirúrgico;
la figura 2 representa una variación en el
diseño de las barras de manipulación en un extremo del paño mostrado
en la figura 1;
la figura 3 es una vista similar a la de la
figura 1 de un paño quirúrgico de acuerdo con la invención;
la figura 4 es una vista en planta del paño
quirúrgico mostrado en la figura 3;
la figura 5 es una vista en planta desde abajo
de un cabezal de aspiración de acuerdo con la invención; y
la figura 6 es un alzado lateral del cabezal de
aspiración mostrado en la figura 5;
la figura 7 es una vista similar a la de la
figura 6, pero que muestra el cabezal de aspiración asegurado a la
superficie de la piel con el paño y con una almohadilla de espuma
situada entre el cabezal y la superficie de la piel;
la figura 8 es una vista en perspectiva del
paño, con una porción de tira central de la lámina protectora en el
curso de ser retirada, y
las figuras
9(a)-9(c) ilustran las etapas de fijar
el conjunto de apósito a una zona de herida en la pierna de un
paciente y la fijación a un conjunto de presión negativa.
Haciendo referencia a las figuras 1 y 2 de los
dibujos que se acompañan, un estratificado convencional para uso
como un paño quirúrgico comprende una película 1 delgada y flexible
de plástico transparente que está revestida con adhesivo por una
cara 2, normalmente con un adhesivo piezosensible de alta
pegajosidad, y está protegido con una capa 3 liberable. La película
delgada de plástico es convenientemente de poliuretano, porque
transmite la humedad. La capa 3 es de manera considerablemente
normal más gruesa que la película 1, y está revestida sobre la
superficie adyacente al adhesivo con un material liberable, tal como
una silicona, para facilitar el arranque de la película revestida
con adhesivo.
A fin de facilitar la retirada de la película
revestida con adhesivo antes del uso del dispositivo, las barras de
manipulación 4 están unidas en cada extremo a la película 1
revestida con adhesivo. Así, reteniendo una de las barras 4, se
puede arrancar la capa 3 protectora y aplicar la cara adhesiva a la
piel del paciente. Para facilitar la manipulación de la película 1
delgada y flexible, se aplica frecuentemente una película de
refuerzo 5 de plástico a la cara libre de la película 1 de plástico.
Ésta es también generalmente transparente o translúcida. La película
5 no está, preferiblemente, unida con adhesivo a la película 1, pero
se puede mantener en contacto a causa de fuerzas electrostáticas o
debido a un estrecho contacto entre las dos superficies de ajuste de
la película 1 y la película 5.
Usualmente, el cirujano o la enfermera querrá
arrancar la capa 5 protectora, después de que se haya colocado
correctamente la película 1 sobre la piel de un paciente, y esto se
puede facilitar haciendo unos cortes 6 parciales a través de las
películas 1 y 5, de manera que, a medida que la barra de
manipulación 4 es extraída hacia arriba de la piel de un paciente,
la película 1 adhesiva se mantiene adherida al paciente, mientras
que los cortes 6 parciales hacen que se separe la película flexible
de la película de refuerzo 5. Se pueden disponer unas barras de
refuerzo 7 para retener los bordes laterales de la película de
refuerzo 5 y la película 1, junto con sus partes principales.
Una disposición alternativa se muestra en la
figura 2, en la que la película de refuerzo 5 está provista de una
barra de manipulación 14 separada de solapamiento, para facilitar su
retirada de la película 1 flexible.
Los detalles adicionales de la formación y
fabricación de paños quirúrgicos se proporcionan en la patente de
EE.UU. número 5.437.622 y la solicitud de patente europea número
0161865, y en la técnica anterior que hace referencia a ellas.
Haciendo referencia a las figuras 3 y 4, el paño
quirúrgico de esta invención comprende una película exterior 20
protectora, estratificada a una película 21 delgada y flexible. La
película 21 flexible incluye una capa revestida con adhesivo que
está protegida con un material laminar 24 revestido de liberación.
Los bordes laterales de la película 21 flexible están provistos de
unas barras de manipulación 23. Hasta aquí, el diseño es
esencialmente el mismo que el mostrado en las figuras 1 y 2.
El paño de la presente invención difiere del
paño mostrado en las figuras 1 y 2 en que se corta una abertura 25 a
través de la capa de refuerzo 20 y a través de la capa 21 flexible.
La otra diferencia comparada con los paños de la técnica anterior es
que la capa protectora liberable está formada en al menos dos
secciones.
En las realizaciones mostradas en las figuras 3
y 4, la porción central de la capa liberable comprende una tira 26,
que tiene unas alas 27 que solapan las porciones hacia el exterior
restantes de la capa liberable. El fin de esto es permitir que la
tira 26 central sea retirada primero, sin perturbar las restantes
porciones de la capa liberable. El paño se puede ajustar entonces
alrededor de la zona de herida y, si se desea, un dispositivo de
aspiración u otro dispositivo de tratamiento se puede pasar a través
de la abertura 25 y asegurar a la piel de un paciente con las zonas
periféricas de la película expuesta revestida con adhesivo.
Un ejemplo de un dispositivo para aplicar
aspiración a la zona de herida se ilustra en las figuras 5, 6 y
7.
Haciendo referencia a estas figuras, el cabezal
de aspiración comprende una porción del reborde 30 que tiene un
borde 31 ahusado, y un perfil, que puede ser de cualquier forma
deseada, pero está redondeado generalmente en sus bordes. Sobre la
cara del reborde 30 destinado a un contacto con la piel de un
paciente, o una almohadilla de espuma, está formada una serie de
salientes 32, que se distribuyen por la superficie del reborde
separados de la porción del borde 31 periférico. El fin de estos
salientes es proporcionar unos canales 33 de fluido que faciliten el
flujo de fluidos desde cualquier punto del reborde hasta un punto 34
central, desde el que se pretende aplicar aspiración. El cabezal de
aspiración incluye un conector 35, situado encima de la abertura 34,
que tiene un extremo 36 tubular adaptado para recibir y conectar un
catéter. El extremo tubular puede tener una porción ahusada hacia
fuera para facilitar la alimentación de un catéter al conector. La
superficie superior 37 del cabezal de aspiración tiene una
superficie sustancialmente uniforme.
En uso, la porción del conector 35 está
dimensionada de manera que se extiende a través de la abertura 25 en
el paño quirúrgico mostrado en las figuras 3 y 4, con la superficie
adhesiva alrededor de la abertura unida a la superficie 37 uniforme
del reborde 30. El cabezal de aspiración puede estar envasado en
esta condición con el paño quirúrgico de manera que, en uso, la tira
26 es retirada tirando de los mangos 27, exponiendo así la
superficie adhesiva en la proximidad de y rodeando el cabezal de
aspiración. El cabezal de aspiración se puede fijar entonces en la
posición deseada sobre la herida de un paciente y retirar entonces
la porción restante de la película protectora para fijar el paño al
paciente. El reborde 30 del cabezal de aspiración puede ser algo
ovalado, como se muestra en la figura 5, y tener dimensiones como
las indicadas en esta figura, es decir, una dimensión más larga de
aproximadamente 95 mm y una dimensión corta de aproximadamente 70
mm. Alternativamente, el reborde puede ser circular y ser menor en
vista en planta. Por ejemplo, el diámetro de un cabezal de
aspiración circular puede tener una dimensión desde aproximadamente
30 hasta 50 mm, por ejemplo, aproximadamente 40 mm. Se ha encontrado
que el reborde del cabezal de aspiración no debería solapar la zona
de la herida. Así, en el caso de heridas menores, está indicado un
cabezal de aspiración más pequeño.
La figura 7 muestra el cabezal de aspiración
fijado a una zona 71 de herida de un paciente 70. El cabezal de
aspiración se presiona hasta contacto firme con una espuma 73
flexible de celda abierta, que, a su vez, se presiona hasta contacto
con la zona 71 de herida. El cabezal de aspiración y la almohadilla
de espuma se presionan hasta contacto con la zona de herida gracias
a un paño quirúrgico 20 que tiene una superficie 74 adhesiva. La
superficie adhesiva está unida a la piel de un paciente
exteriormente a la periferia de la almohadilla de espuma y del
cabezal de aspiración. Está unida también a la superficie superior
37 del cabezal de aspiración. Se forma una abertura en el paño para
permitir que la porción del conector 35 se extienda hacia arriba a
través del mismo. A fin de impedir el peligro de que se ajusten
tubos de catéter incorrectos al conector 35, este último puede tener
una sección transversal ajustable o un saliente interno, tal como un
nervio o una chaveta, que colabore con una ranura o un chavetero
correspondiente en el catéter. Alternativamente, el catéter puede
estar moldeado con un saliente o nervio longitudinal que colabore
con una ranura o un chavetero correspondiente en la abertura del
conector 35.
La almohadilla de espuma puede estar envasada en
una bolsita de plástico, esterilizada por radiación gamma, y
suministrada en la misma caja o en otras unidades de envasado, como
el cabezal de aspiración y el paño.
Las figuras 8 y 9(a)-(b) ilustran el modo
en el que la combinación paño/cabezal de aspiración se ajusta a una
herida en la piel de un paciente. En la figura 8, una lámina de
refuerzo 101, que tiene una superficie revestida de liberación, es
retirada en la primera etapa de la cara 102 adhesiva del paño para
exponer la cara del conector 35. Se sitúa una almohadilla 103 de
espuma sobre la zona de herida, y el paño se coloca sobre la
almohadilla de espuma, siendo adherido el paño a la piel encima y
debajo de la almohadilla (figura 9a). Las tiras 104 y 105
protectoras laterales son retiradas, a su vez, del paño, y el
conjunto es adherido a la piel (figuras 9(b) y 9(c)).
Finalmente, la boca 36 es conectada a un tubo 106, que se conecta
entonces a una fuente de aspiración, por ejemplo una bomba, como se
describe en nuestra solicitud PCT anterior, a fin de aplicar
presión negativa a la herida. El conjunto de cabezal de aspiración y
paño se muestra en la figura 8, con la superficie 37 uniforme
adherida al paño, y está envasado convenientemente en una bolsa o
bolsita de plástico que se puede abrir fácilmente, y esterilizado
para su uso inmediato.
Claims (4)
1. Un paño quirúrgico, que comprende una
película (21) delgada y flexible de plástico revestida con adhesivo
y una capa (24) protectora liberable aplicada al revestimiento
adhesivo, y al menos un primer borde del paño que tiene una barra de
manipulación (23) no revestida con adhesivo para separar la película
revestida con adhesivo de la capa protectora, caracterizado
porque el paño tiene una abertura (25) al menos a través de la
película revestida con adhesivo para permitir, en uso, el acceso a
una zona de herida, y en el que la capa protectora comprende una
tira separada que se extiende paralela al primer borde del paño, y
que protege el revestimiento adhesivo en la región de la abertura
(25) y porta al menos un ala (27) que solapa la porción adyacente
de la capa protectora, constituyendo dicho ala un asidero para
facilitar la retirada de dicha tira antes del uso.
2. Un paño quirúrgico según la reivindicación 1,
que tiene una capa de refuerzo (20) aplicada a la cara opuesta al
revestimiento adhesivo.
3. Un paño quirúrgico según la reivindicación 2,
siendo dicha capa de refuerzo una película de plástico, que es más
gruesa o menos flexible que dicha película revestida con
adhesivo.
4. Un paño quirúrgico según la reivindicación 2
o la reivindicación 3, en el que dicha abertura pasa por al menos la
película de refuerzo y la película revestida con adhesivo.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9719520.0A GB9719520D0 (en) | 1997-09-12 | 1997-09-12 | Surgical drape and suction heads for wound treatment |
| GB9719520 | 1997-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2258748T3 true ES2258748T3 (es) | 2006-09-01 |
Family
ID=10819033
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES98941623T Expired - Lifetime ES2227872T3 (es) | 1997-09-12 | 1998-09-09 | Cabeza de aspiracion para el tratamiento de heridas y combinacion con un paño quirurgico. |
| ES04009482T Expired - Lifetime ES2258748T3 (es) | 1997-09-12 | 1998-09-09 | Paño quirurgico. |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES98941623T Expired - Lifetime ES2227872T3 (es) | 1997-09-12 | 1998-09-09 | Cabeza de aspiracion para el tratamiento de heridas y combinacion con un paño quirurgico. |
Country Status (13)
| Country | Link |
|---|---|
| US (5) | US6345623B1 (es) |
| EP (4) | EP2172164B2 (es) |
| JP (1) | JP4169243B2 (es) |
| KR (1) | KR100516288B1 (es) |
| AT (3) | ATE318550T1 (es) |
| AU (1) | AU745271B2 (es) |
| CA (1) | CA2303085C (es) |
| DE (3) | DE69833579T2 (es) |
| DK (2) | DK1018967T3 (es) |
| ES (2) | ES2227872T3 (es) |
| GB (3) | GB9719520D0 (es) |
| PT (1) | PT1440667E (es) |
| WO (1) | WO1999013793A1 (es) |
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- 1998-09-09 EP EP09181022.6A patent/EP2172164B2/en not_active Expired - Lifetime
- 1998-09-09 PT PT04009482T patent/PT1440667E/pt unknown
- 1998-09-09 EP EP04009482A patent/EP1440667B1/en not_active Expired - Lifetime
- 1998-09-09 AT AT04009482T patent/ATE318550T1/de active
- 1998-09-09 GB GB9909575A patent/GB2333965B/en not_active Expired - Lifetime
- 1998-09-09 CA CA002303085A patent/CA2303085C/en not_active Expired - Lifetime
- 1998-09-09 GB GB9819678A patent/GB2329127B/en not_active Expired - Lifetime
- 1998-09-09 EP EP98941623A patent/EP1018967B1/en not_active Expired - Lifetime
- 1998-09-09 ES ES98941623T patent/ES2227872T3/es not_active Expired - Lifetime
- 1998-09-09 DE DE69833579T patent/DE69833579T2/de not_active Expired - Lifetime
- 1998-09-09 KR KR10-2000-7002640A patent/KR100516288B1/ko not_active Expired - Lifetime
- 1998-09-09 AU AU89934/98A patent/AU745271B2/en not_active Expired
- 1998-09-09 EP EP05112409A patent/EP1637088B1/en not_active Revoked
- 1998-09-09 DK DK98941623T patent/DK1018967T3/da active
- 1998-09-09 AT AT05112409T patent/ATE454857T1/de active
- 1998-09-09 AT AT98941623T patent/ATE273666T1/de active
- 1998-09-09 DK DK04009482T patent/DK1440667T3/da active
- 1998-09-09 WO PCT/GB1998/002713 patent/WO1999013793A1/en not_active Ceased
- 1998-09-09 DE DE69825767T patent/DE69825767T2/de not_active Expired - Lifetime
- 1998-09-09 JP JP2000511426A patent/JP4169243B2/ja not_active Expired - Lifetime
- 1998-09-09 ES ES04009482T patent/ES2258748T3/es not_active Expired - Lifetime
- 1998-09-09 DE DE69841451T patent/DE69841451D1/de not_active Expired - Lifetime
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1999
- 1999-07-09 US US09/350,581 patent/US6345623B1/en not_active Expired - Lifetime
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2001
- 2001-04-16 US US09/835,500 patent/US6553998B2/en not_active Expired - Lifetime
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2003
- 2003-02-13 US US10/366,227 patent/US6814079B2/en not_active Expired - Lifetime
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2004
- 2004-09-09 US US10/937,680 patent/US7117869B2/en not_active Expired - Lifetime
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2006
- 2006-10-10 US US11/545,321 patent/US7886746B2/en not_active Expired - Fee Related
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