WO1989003765A1 - Waterproof skin covering - Google Patents

Waterproof skin covering Download PDF

Info

Publication number
WO1989003765A1
WO1989003765A1 PCT/US1988/003758 US8803758W WO8903765A1 WO 1989003765 A1 WO1989003765 A1 WO 1989003765A1 US 8803758 W US8803758 W US 8803758W WO 8903765 A1 WO8903765 A1 WO 8903765A1
Authority
WO
WIPO (PCT)
Prior art keywords
skin
sheet
article
covering
flexible sheet
Prior art date
Application number
PCT/US1988/003758
Other languages
French (fr)
Inventor
Ronald J. Thompson
Original Assignee
Thompson Ronald J
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
Publication date
Application filed by Thompson Ronald J filed Critical Thompson Ronald J
Publication of WO1989003765A1 publication Critical patent/WO1989003765A1/en

Links

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 plasters or dressings
    • A61F13/0276—Apparatus or processes for manufacturing adhesive dressings or bandages
    • 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 plasters or dressings
    • A61F13/0203—Adhesive plasters or dressings having a fluid handling member
    • A61F13/0206—Adhesive plasters or dressings having a fluid handling member the fluid handling member being absorbent fibrous layer, e.g. woven or nonwoven absorbent pad, island dressings
    • 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 plasters or dressings
    • A61F13/0246—Adhesive plasters or dressings characterised by the skin adhering 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
    • A61F13/02—Adhesive plasters or dressings
    • A61F13/0259—Adhesive plasters or dressings characterised by the release liner covering the skin adhering 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
    • A61F15/00—Auxiliary appliances for wound dressings; Dispensing containers for dressings or bandages
    • A61F15/004—Bandage protectors

Definitions

  • T_his invention relates to waterproof skin coverings which protect damaged skin from contact with water for short periods of time.
  • the human skin is the principal means of defense for protecting the human body from infection as well as providing valuable excretory and tempera ⁇ ture regulatory functions.
  • the skin also aids in providing a stable environment for the continued proper functioning of the internal organs.
  • the continued health of the skin contributes significantly to the overall well-being of the body, and therefore it is important that injury to the skin be healed as quickly as possible.
  • the skin has the capability of generating new cells to replace those that have died or become damaged.
  • the body will generate new skin cells in the area of the puncture, cut or burn and thereby cause healing of the wound.
  • healing is promoted in part by the free transfer of gases generated by the affected tissue and by access of the affected tissue to oxygen.
  • a bandage which covers affected tissue may protect the area from direct contact with sources of contamina ⁇ tion, yet still will inhibit oxygen access and ob ⁇ struct gas transfer and therefore have a negative effect on the rate of healing.
  • the excretion of perspiration containing waste body products into the area under the bandage may increase the possibil ⁇ ity of infection to the affected skin area. Also, the affected area cannot be easily monitored where the healing tissue is covered.
  • Evans U.S. Patent 1,707,515 discloses an adhesive strip prepared from a flexible, porous strip of fabric which has marginal portions of one face coated with adhesive material.
  • the adhesive strip is useful as a surgical dressing.
  • the Golub U.S. Patent 4,297,995 discloses a bandage which consists of multiple layers, one of which being capable of dispensing medicine therefrom.
  • a liquid-water impermeable surgical dressing is disclosed in Merriam U.S. Patent 2,949,443.
  • the dressing is made from a resinous film which resists liquid water but is permeable to water vapor.
  • the dressing is applied by activating the surface with solvent prior to application, or by covering the surface with adhesive followed by application.
  • the dressing flexes with the skin and is worn over the wound for long periods of time.
  • bandages known in the art serve to absorb fluid secretions from the affected area.
  • the bandage acts to minimize the risk of particulate contaminants making contact with the affected tissue.
  • Those bandages acting to minimize contamination are generally worn in place for a number of hours or days.
  • the covered skin generally becomes macerated over time, even where the bandage is breath ⁇ able, because fluid generation exceeds the ability of the bandage to wick the fluid away from the affected tissue site.
  • the present invention is directed toward a covering for punctures, incisions, burns, other breaks in the skin, and diseases or growths on the skin undergoing the healing process.
  • the covering protects the affected skin area from contact with water for short periods of time, as when the person takes a shower or bath or otherwise applies water to the skin in proximity to the affected area.
  • the short-term exclusion of both liquid water and water vapor pre ⁇ vents deleterious water contact without otherwise interfering with the healing process. Removal immedi ⁇ ately afterward permits the necessary gas transfer at the affected area and aids in keeping the area dry.
  • the covering is made up of a first sheet which is flexible and initially water permeable, which contains on one side a water-impermeable layer of pressure sensitive adhesive.
  • the adhesive is compat ⁇ ible with the skin to permit contact without adverse side-effects.
  • the pressure sensitive adhesive layer is covered with a barrier sheet to protect the adhe ⁇ sive until use.
  • the mating side of the barrier sheet has a surface which permits removal from the adhesive layer without tearing.
  • the barrier sheet also con ⁇ tains scoring lines preferably parallel and adjacent to the edges of the covering. Prior to applying the covering to the body, the portions of the barrier sheet between the edges and the scoring lines are removed by hand.
  • the centered remaining portion of the barrier sheet is placed over the affected area and is secured in place by pressing the exposed adhesive- coated portion of the first sheet into close contact with the surrounding skin.
  • the skin-contacting side of the barrier sheet is produced from material which is ⁇ terilizable and which in sterilized form would cause no harmful consequences to the injured area during the short period of contact, even in instances where seepage from the affected area may occur.
  • the covering After the person finishes bathing or shower ⁇ ing, the covering is removed from the skin.
  • the covering is inexpensive, and in recognition of the need to minimize infection, the covering is discarded after each use.
  • the waterproof seal around the affected area protects the area from the adverse effects of contact with water, while permitting fast removal to restore the area to the healing exposure of the air.
  • Fig. 1 is a representation -showing the waterproof covering in use.
  • Fig. 2 is a perspective view of the bottom of the covering, showing partial removal of portions of the barrier sheet and exposure of adhesive.
  • Fig. 3 is a perspective view of the top of the covering.
  • Fig. 4 is a cross-sectional view taken on line 4-4 of Fig. 2 showing the individual layers and their relation thereto.
  • the waterproof covering 2 is comprised of an outer flexible sheet 4, an adhesive layer 6, and a barrier sheet 8.
  • a clay coating is applied to one surface of the barrier sheet 8; which is preferably manufactured from paper stock known as white tag liner having a thickness of about 0.08 inch.
  • This coated surface then receives an application of a silicon-based material such as a polysiloxane preferably via roll coating.
  • This surface thus treated, becomes the releasable surface 10 of the barrier sheet 8.
  • the barrier sheet can be produced from supercalendered kraft paper, or polyethylene coated kraft paper.
  • a barrier sheet 8 produced from poly ⁇ ethylene coated paper does not require a further coating of a silicon-based material.
  • the opposite side of the barrier sheet 8 is the skin contacting surface 12.
  • the skin-contacting surface 12 must not degrade in the presence of seepage from the affected skin area or medication applied to the affected area during the short period in which the waterproof covering is in place, typically no longer than ten minutes. Further, the skin contacting surface 12 must be chosen so that it does not stick to the affected skin area or leave pieces in the affected area and thereby inhibit the healing process.
  • the adhe ⁇ sive is applied in a thickness sufficient to render the covering 2 impermeable to liquid water as well as water vapor.
  • the adhesive is pressure sensitive, and is chosen from a group approved by the U.S. Food and Drug Administration for direct contact with skin.
  • the adhesive preferably is a non-sensitizing copolymer of 2-ethylhexyl aerylate and acrylic acid. Such adhesive is produced by the Fasson Industrial Division of Avery International and is designated Avery 1-815.
  • rubber-based adhesives may be used, such as those produced from polyisobutylene or block copolymers of styrene-butadiene-st rene.
  • the adhesive layer may be applied by any number of techniques, such as by rolling, spraying, etc.
  • the top of the covering 2 is formed by the application of a flexible sheet 4 onto the exposed side of adhesive 6.
  • the outer flexible sheet 4 is initially permeable to water, and is sufficiently flexible to permit the waterproof covering 2 to conform to the contours of the body.
  • the material used to produce the flexible sheet 4 may be chosen from a large number of product sources. Broadly, the material used to make the flexible sheet 4 is conform ⁇ able to the body, able to accept adhesive to thereby produce a waterproof layer, capable of being steri ⁇ lized, and unaffected by the action of water and stresses initiated by body movement.
  • a preferred example of a material meeting the listed requirements is a taffeta cloth produced from cellulose acetate fiber, such as the cloth bearing the designation RTS-1-12166, from the Fasson Industrial Division of Avery International.
  • Alternative examples include fabric manufactured from blends of silk and rayon and porous sheets produced from synthetic polymer films.
  • the waterproof covering 2 is preferably sterilized prior to use.
  • the sterilization can be accomplished by a variety of means, such as via chemical, radiation, or heat treatment. Alterna ⁇ tively, where the covering is not sterilized, a sterile cloth or gauze, or other material which will create a space between the skin contacting surface 12 and the affected skin area, may be interposed.
  • the waterproof covering 2 is applied to the body by removal of portions of the barrier sheet as defined by score lines 14.
  • the score lines 14 are adjacent and parallel to the edge 16 of the outer flexible sheet 4.
  • the score lines 14 as depicted in Fig. 2 define a number of edge portions 18 and a single center portion 20.
  • the scoring of the barrier sheet 8 is preferably accom ⁇ plished after laminating of the individual layers to form the covering 2 has been completed.
  • the barrier sheet 8 may be die cut, thus producing a single center portion 20 and a continuous removable edge.
  • the edge portions 18 are removed, exposing part of the adhesive layer 6.
  • the center portion 20 of the barrier sheet 8 is then positioned over the affected skin area such that the skin contacting surface 12 completely covers the affected area.
  • the part of the adhesive layer 6 exposed by removing edge portions 18 is then firmly pressed onto the skin, effecting a waterproof seal around the perimeter of the waterproof covering 2.
  • the waterproof covering 2 is shown in use on the body in Fig. 1; it has particular utility in protecting an affected skin area during showering.
  • the waterproof covering 2 may be offered in a range of sizes. Dimensions of a representative covering sheet are 5 inches by 8.5 inches, with a removable edge portion border of 1 inch. The remain ⁇ ing skin-contacting center portion 20 has a size of 3 inches by 6.5 inches.
  • the outer flexible sheet 4 of the waterproof covering 2 may be supplied in a range of flexibilities to permit waterproofing protection for areas over the entire body, from the relatively flat soft tissue areas in the trunk to highly contoured areas such as the knee and ankle. Further, it is envisioned that the center portion 20 of the barrier sheet skin contacting surface 12 may optionally have absorbent capability to wick seepage that might occur during application of the waterproof covering.

Abstract

Incisions, burns, lesions and other injuries to the skin are protected from contact with water by use of a waterproof covering (2). The covering (2) consists of an outer flexible sheet (4), a pressure sensitive adhesive (6) applied to the flexible sheet (4) in a thickness sufficient to render the covering (2) impermeable to liquid water as well as water vapor, and a barrier sheet (8) having a skin contacting surface (12). The waterproof covering (2) is applied to the body by removal of edge portions (18) of the barrier sheet (8) as defined by score lines (14). The skin contacting surface (12) covers the injured area when in use. The waterproof covering (2) may be offered in a range of sizes to protect incisions and burns of various sizes from contact with liquid water or water vapor for short periods of time.

Description

WATERPROOF SKIN COVERING Field of the Invention
T_his invention relates to waterproof skin coverings which protect damaged skin from contact with water for short periods of time.
Background of the Invention
The human skin is the principal means of defense for protecting the human body from infection as well as providing valuable excretory and tempera¬ ture regulatory functions. The skin also aids in providing a stable environment for the continued proper functioning of the internal organs. The continued health of the skin contributes significantly to the overall well-being of the body, and therefore it is important that injury to the skin be healed as quickly as possible.
The skin has the capability of generating new cells to replace those that have died or become damaged. In the instance where the skin has become punctured, cut or burned, either through accident or as a result of a surgical operation, the body will generate new skin cells in the area of the puncture, cut or burn and thereby cause healing of the wound. The same process occurs in the situation where a skin growth or lesion is being treated or removed. Healing is promoted in part by the free transfer of gases generated by the affected tissue and by access of the affected tissue to oxygen. It can be seen that a bandage which covers affected tissue may protect the area from direct contact with sources of contamina¬ tion, yet still will inhibit oxygen access and ob¬ struct gas transfer and therefore have a negative effect on the rate of healing. Further, the excretion of perspiration containing waste body products into the area under the bandage may increase the possibil¬ ity of infection to the affected skin area. Also, the affected area cannot be easily monitored where the healing tissue is covered.
In certain instances, such as where the person wishes to bathe or shower, it becomes necessary to have some means of keeping water from contacting the area of the wound. When water comes in contact with skin tissue healing from a wound, the action of the water has a detrimental effect on the newly-formed replacement tissue. It is therefore necessary that the wo nd be covered to effectively prevent contact with water.
A variety of bandages or coverings have been developed for protecting wounds. Evans U.S. Patent 1,707,515 discloses an adhesive strip prepared from a flexible, porous strip of fabric which has marginal portions of one face coated with adhesive material. The adhesive strip is useful as a surgical dressing.
The Golub U.S. Patent 4,297,995 discloses a bandage which consists of multiple layers, one of which being capable of dispensing medicine therefrom.
A liquid-water impermeable surgical dressing is disclosed in Merriam U.S. Patent 2,949,443. The dressing is made from a resinous film which resists liquid water but is permeable to water vapor. The dressing is applied by activating the surface with solvent prior to application, or by covering the surface with adhesive followed by application. The dressing flexes with the skin and is worn over the wound for long periods of time.
Generally, bandages known in the art serve to absorb fluid secretions from the affected area. Alternatively, the bandage acts to minimize the risk of particulate contaminants making contact with the affected tissue. Those bandages acting to minimize contamination are generally worn in place for a number of hours or days. The covered skin generally becomes macerated over time, even where the bandage is breath¬ able, because fluid generation exceeds the ability of the bandage to wick the fluid away from the affected tissue site.
Brief Description of the Invention
The present invention is directed toward a covering for punctures, incisions, burns, other breaks in the skin, and diseases or growths on the skin undergoing the healing process. The covering protects the affected skin area from contact with water for short periods of time, as when the person takes a shower or bath or otherwise applies water to the skin in proximity to the affected area. The short-term exclusion of both liquid water and water vapor pre¬ vents deleterious water contact without otherwise interfering with the healing process. Removal immedi¬ ately afterward permits the necessary gas transfer at the affected area and aids in keeping the area dry.
The covering is made up of a first sheet which is flexible and initially water permeable, which contains on one side a water-impermeable layer of pressure sensitive adhesive. The adhesive is compat¬ ible with the skin to permit contact without adverse side-effects. The pressure sensitive adhesive layer is covered with a barrier sheet to protect the adhe¬ sive until use. The mating side of the barrier sheet has a surface which permits removal from the adhesive layer without tearing. The barrier sheet also con¬ tains scoring lines preferably parallel and adjacent to the edges of the covering. Prior to applying the covering to the body, the portions of the barrier sheet between the edges and the scoring lines are removed by hand. The centered remaining portion of the barrier sheet is placed over the affected area and is secured in place by pressing the exposed adhesive- coated portion of the first sheet into close contact with the surrounding skin. The skin-contacting side of the barrier sheet is produced from material which is εterilizable and which in sterilized form would cause no harmful consequences to the injured area during the short period of contact, even in instances where seepage from the affected area may occur.
After the person finishes bathing or shower¬ ing, the covering is removed from the skin. The covering is inexpensive, and in recognition of the need to minimize infection, the covering is discarded after each use. The waterproof seal around the affected area protects the area from the adverse effects of contact with water, while permitting fast removal to restore the area to the healing exposure of the air.
■Accordingly, it is an object of this inven¬ tion to provide short term waterproofing protection to punctures, incisions, burns and other breaks in the skin. It is a further object to provide a process for producing such short-term waterproofing protection.
These and other objects and advantages will become readily apparent from the following detailed description of a preferred embodiment of the invention and from the drawings in which:
Brief Description of the Drawings
Fig. 1 is a representation -showing the waterproof covering in use.
Fig. 2 is a perspective view of the bottom of the covering, showing partial removal of portions of the barrier sheet and exposure of adhesive.
Fig. 3 is a perspective view of the top of the covering.
Fig. 4 is a cross-sectional view taken on line 4-4 of Fig. 2 showing the individual layers and their relation thereto.
Detailed Description of the Invention
Prior to application to the body as shown in Fig. 1, the waterproof covering 2 is comprised of an outer flexible sheet 4, an adhesive layer 6, and a barrier sheet 8.
In the preferred method for producing the covering, a clay coating is applied to one surface of the barrier sheet 8; which is preferably manufactured from paper stock known as white tag liner having a thickness of about 0.08 inch. This coated surface then receives an application of a silicon-based material such as a polysiloxane preferably via roll coating. This surface, thus treated, becomes the releasable surface 10 of the barrier sheet 8. Alter¬ natively, the barrier sheet can be produced from supercalendered kraft paper, or polyethylene coated kraft paper. A barrier sheet 8 produced from poly¬ ethylene coated paper does not require a further coating of a silicon-based material.
The opposite side of the barrier sheet 8 is the skin contacting surface 12. The skin-contacting surface 12 must not degrade in the presence of seepage from the affected skin area or medication applied to the affected area during the short period in which the waterproof covering is in place, typically no longer than ten minutes. Further, the skin contacting surface 12 must be chosen so that it does not stick to the affected skin area or leave pieces in the affected area and thereby inhibit the healing process.
To the releasable surface 10 of barrier sheet 8 is applied a layer of adhesive 6. The adhe¬ sive is applied in a thickness sufficient to render the covering 2 impermeable to liquid water as well as water vapor. The adhesive is pressure sensitive, and is chosen from a group approved by the U.S. Food and Drug Administration for direct contact with skin. The adhesive preferably is a non-sensitizing copolymer of 2-ethylhexyl aerylate and acrylic acid. Such adhesive is produced by the Fasson Industrial Division of Avery International and is designated Avery 1-815. Alterna¬ tively, rubber-based adhesives may be used, such as those produced from polyisobutylene or block copolymers of styrene-butadiene-st rene. The adhesive layer may be applied by any number of techniques, such as by rolling, spraying, etc.
The top of the covering 2 is formed by the application of a flexible sheet 4 onto the exposed side of adhesive 6. The outer flexible sheet 4 is initially permeable to water, and is sufficiently flexible to permit the waterproof covering 2 to conform to the contours of the body. The material used to produce the flexible sheet 4 may be chosen from a large number of product sources. Broadly, the material used to make the flexible sheet 4 is conform¬ able to the body, able to accept adhesive to thereby produce a waterproof layer, capable of being steri¬ lized, and unaffected by the action of water and stresses initiated by body movement. A preferred example of a material meeting the listed requirements is a taffeta cloth produced from cellulose acetate fiber, such as the cloth bearing the designation RTS-1-12166, from the Fasson Industrial Division of Avery International. Alternative examples include fabric manufactured from blends of silk and rayon and porous sheets produced from synthetic polymer films.
The waterproof covering 2 is preferably sterilized prior to use. The sterilization can be accomplished by a variety of means, such as via chemical, radiation, or heat treatment. Alterna¬ tively, where the covering is not sterilized, a sterile cloth or gauze, or other material which will create a space between the skin contacting surface 12 and the affected skin area, may be interposed.
The waterproof covering 2 is applied to the body by removal of portions of the barrier sheet as defined by score lines 14. In the preferred embodi¬ ment, the score lines 14 are adjacent and parallel to the edge 16 of the outer flexible sheet 4. The score lines 14 as depicted in Fig. 2 define a number of edge portions 18 and a single center portion 20. The scoring of the barrier sheet 8 is preferably accom¬ plished after laminating of the individual layers to form the covering 2 has been completed. In an alter¬ native embodiment, the barrier sheet 8 may be die cut, thus producing a single center portion 20 and a continuous removable edge. Immediately prior to use, the edge portions 18 are removed, exposing part of the adhesive layer 6. The center portion 20 of the barrier sheet 8 is then positioned over the affected skin area such that the skin contacting surface 12 completely covers the affected area. The part of the adhesive layer 6 exposed by removing edge portions 18 is then firmly pressed onto the skin, effecting a waterproof seal around the perimeter of the waterproof covering 2. The waterproof covering 2 is shown in use on the body in Fig. 1; it has particular utility in protecting an affected skin area during showering.
Because incisions and burns have no uniform size, the waterproof covering 2 may be offered in a range of sizes. Dimensions of a representative covering sheet are 5 inches by 8.5 inches, with a removable edge portion border of 1 inch. The remain¬ ing skin-contacting center portion 20 has a size of 3 inches by 6.5 inches.
During use of the waterproof covering 2, body movement may stress the covering and thereby tend to raise the corners of the covering away from the skin. Though the width of exposed adhesive layer 6 is more than sufficient to maintain waterproof contact, it has been found that the step of rounding the corners prior to application decreases the tendency of raising away from the skin and thereby further de¬ creases the chance that water may contact the affected skin area. -li¬ lt is envisioned that the outer flexible sheet 4 of the waterproof covering 2 may be supplied in a range of flexibilities to permit waterproofing protection for areas over the entire body, from the relatively flat soft tissue areas in the trunk to highly contoured areas such as the knee and ankle. Further, it is envisioned that the center portion 20 of the barrier sheet skin contacting surface 12 may optionally have absorbent capability to wick seepage that might occur during application of the waterproof covering.
This specification has described the present invention and its operating parameters. Variations may be achieved without departing from the spirit and scope hereof as defined by the claims. What is claimed is:

Claims

(1) An article of manufacture for protecting the skin from contact with water for short periods of time comprising: an outer flexible sheet? a pressure sensitive adhesive applied to one surface of said sheet; and a release sheet covering said pressure sensitive adhesive, said release sheet having a scored perimeter line defining a removable marginal portion of said release sheet whereby said marginal portion of said release sheet can be removed and the article placed over a skin area with said exposed adhesive attaching the article to the skin of the wearer, said flexible sheet and adhesive forming a water barrier to protect the skin area.
(2) The article of claim 1 wherein said outer flexible sheet is permeable to water.
(3) The article of claim 1 wherein said outer flexible sheet is comprised of a cellulose acetate taffeta fabric.
(4) The article of claim 1 wherein said pressure sensitive adhesive is a copolymer of 2-ethylhexyl aerylate and acrylic acid.
(5) The article of claim 1 wherein said corners of said outer flexible sheet are rounded.
(6) The article of claim 1 wherein said peri¬ meter line is produced by a die.
(7) A method of manufacturing a covering for use in protecting an area of the skin from contact with water over short periods of time comprising: applying an adhesive coating onto a surface of a flexible sheet; overlying a barrier sheet having a skin- contacting surface and an adhesive-releasable surface onto said adhesive-coating of said flexible sheet; and cutting lines onto said skin-contacting surface of said barrier sheet to permit subsequent removal of a portion of said barrier sheet.
(8) The process of claim 7 wherein said cutting is disposed inwardly from and parallel to said edges of said flexible sheet.
(9) The method of claim 7 wherein said lines are cut by a scoring process.
(10) The method of claim 7 wherein said lines are cut by a die.
PCT/US1988/003758 1987-10-19 1988-10-19 Waterproof skin covering WO1989003765A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US109,440 1980-01-04
US10944087A 1987-10-19 1987-10-19

Publications (1)

Publication Number Publication Date
WO1989003765A1 true WO1989003765A1 (en) 1989-05-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/003758 WO1989003765A1 (en) 1987-10-19 1988-10-19 Waterproof skin covering

Country Status (2)

Country Link
AU (1) AU2720888A (en)
WO (1) WO1989003765A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0996395A1 (en) * 1997-07-14 2000-05-03 Medwrap Corp. Medical protective wrap
US6235365B1 (en) * 1998-12-18 2001-05-22 W. R. Grace & Co.-Conn. Waterproofing membrane having release sheet cutting system
WO2006100382A1 (en) 2005-03-23 2006-09-28 Eric Gilli Kit and method for protecting dressings and/or wounded skin regions of the body
EP1786374A2 (en) * 2004-09-10 2007-05-23 Clozex Medical, LLC Modular wound dressing system
US7550187B2 (en) 2003-01-30 2009-06-23 W. R. Grace & Co. -Conn. Moisture barrier membrane with tearable release liner composite
JP2015536795A (en) * 2012-12-18 2015-12-24 シスタジェニックス ウンド マネージメント イーペー カンパニー ベスローテン ヴェンノーツハップＳｙｓｔａｇｅｎｉｘ Ｗｏｕｎｄ Ｍａｎａｇｅｍｅｎｔ ＩＰ Ｃｏ．Ｂ．Ｖ． Wound dressing with adhesive rim

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297995A (en) * 1980-06-03 1981-11-03 Key Pharmaceuticals, Inc. Bandage containing attachment post
US4485809A (en) * 1981-12-11 1984-12-04 Johnson & Johnson Products, Inc. Film window dressing
US4706662A (en) * 1981-12-11 1987-11-17 Johnson & Johnson Products, Inc. Film dressing with fabric backing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297995A (en) * 1980-06-03 1981-11-03 Key Pharmaceuticals, Inc. Bandage containing attachment post
US4485809A (en) * 1981-12-11 1984-12-04 Johnson & Johnson Products, Inc. Film window dressing
US4706662A (en) * 1981-12-11 1987-11-17 Johnson & Johnson Products, Inc. Film dressing with fabric backing

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0996395A1 (en) * 1997-07-14 2000-05-03 Medwrap Corp. Medical protective wrap
EP0996395A4 (en) * 1997-07-14 2003-06-18 Medwrap Corp Medical protective wrap
US6235365B1 (en) * 1998-12-18 2001-05-22 W. R. Grace & Co.-Conn. Waterproofing membrane having release sheet cutting system
US7550187B2 (en) 2003-01-30 2009-06-23 W. R. Grace & Co. -Conn. Moisture barrier membrane with tearable release liner composite
EP1786374A2 (en) * 2004-09-10 2007-05-23 Clozex Medical, LLC Modular wound dressing system
EP1786374A4 (en) * 2004-09-10 2009-12-30 Clozex Medical Llc Modular wound dressing system
CN101146502B (en) * 2004-09-10 2010-12-08 克劳兹克斯医药有限责任公司 Modular wound dressing system
WO2006100382A1 (en) 2005-03-23 2006-09-28 Eric Gilli Kit and method for protecting dressings and/or wounded skin regions of the body
JP2015536795A (en) * 2012-12-18 2015-12-24 シスタジェニックス ウンド マネージメント イーペー カンパニー ベスローテン ヴェンノーツハップＳｙｓｔａｇｅｎｉｘ Ｗｏｕｎｄ Ｍａｎａｇｅｍｅｎｔ ＩＰ Ｃｏ．Ｂ．Ｖ． Wound dressing with adhesive rim

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