Replaceable flexible protective cover for an infusion device

• US 5,776,106 A
• Filed: 01/03/1995
• Issued: 07/07/1998
• Est. Priority Date: 01/03/1995
• Status: Expired due to Fees

• Current Assignee: Melanie E. Matyas
• Original Assignee: Melanie E. Matyas
• Inventors: Matyas, Melanie E.
• Primary Examiner(s): Rimell, Sam
• Assistant Examiner(s): Yeh, Luke
• Application Number:
  US08/368,097
• Time in Patent Office: 1,281 Days
• Field of Search: 604/180, 604/174, 604/175, 604/93, 604/263, 128/DIG. 26
• US Class Current: 604/180
• CPC Class Codes: A61M 2025/0246 fixed on the skin having a cover for covering the holding means
• CPC Class Codes: A61M 2025/0253 where the catheter is attached by straps, bands or the like secured by adhesives
• CPC Class Codes: A61M 2025/026 where the straps are releasably secured, e.g. by hook and loop-type fastening devices
• CPC Class Codes: A61M 2025/0266 using pads, patches, tapes or the like
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: Y10S 128/26 Cannula supporters

Abstract

A replaceable flexible protective cover for an infusion device formed from a transparent membrane adhesive on one side affixable to the skin of a person to surround at least a part of the infusion device, and the membrane includes a portion through which a portion of the device passes and grips the infusion device to assure stability as well as added water proof characteristic to the cover.

Claims

1. A replaceable flexible protective cover for an infusion device, the infusion device having a shank portion defining an exterior hub portion and an interior portion having a catheter means insertable into the vein through the skin of a person, and the infusion device angled to the surface of the skin of the person for the condition of the catheter inserted into the skin of the person, the replaceable flexible protective cover comprising, in combination:

a flexible, resilient middle layer having a top surface and a bottom surface and a peripheral wall having a predetermined geometrical configuration, and said peripheral wall having a front wall portion, a pair of spaced apart side wall portions and a back wall portion spaced from said front wall portion defining a central section therebetween;

a flexible, resilient, waterproof adhesive layer substantially coextensive with said middle layer and having an inner surface on said bottom surface of said middle layer and a outer surface, and said outer surface adapted to be adhered to the skin of the person;

a flexible, resilient waterproof top layer on said upper surface of said middle layer and substantially coextensive with said middle layer;

aperture walls in said central section defining a central aperture extending through said middle layer and said adhesive layer and said aperture walls spaced from said peripheral walls to define a frame section between said first walls and said peripheral wall;

shank walls in said central section and said shank walls defining a shank receiving aperture through said top layer, said middle layer and for receiving the shank of the infusion device in waterproof sealing relationship thereto.

2. The arrangement defined in claim 1 wherein:

said top layer is transparent, said adhesive layer is hypoallergenic and further comprising a removable cover layer on said outer surface of said adhesive layer for protecting said adhesive layer for the condition of said adhesive layer not affixed to the skin of the person.

3. The arrangement defined in claim 1 wherein:

said shank receiving aperture comprises a hole.

4. The arrangement defined in claim 1 wherein:

said shank receiving aperture is a pair of crossed slits.

5. The arrangement defined in claim 1 wherein:

said middle layer is a cellular white foam layer of a cross linked polyurethane.

6. A replaceable flexible protective cover as defined in claim 1 wherein:

said frame section and said top layer is of a size adequate to surround and cover the skin of the person in said central aperture.

7. A replaceable flexible protective cover as defined in claim 6 wherein:

said frame section includes said arcuate front wall portion, said pair of spaced apart side wall portions and said back wall portion remote from said arcuate wall portion and extending between said side wall portions.

8. A replaceable flexible protective cover for an infusion device, the infusion device having a shank portion defining an exterior hub portion and an interior portion having a catheter means insertable into the vein through the skin of a person, and the infusion device angled to the surface of the skin of the person for the condition of the catheter inserted into the skin of the person, the replaceable flexible protective cover comprising, in combination:

a flexible, resilient middle layer having a top surface and a bottom surface and a peripheral wall having a predetermined geometrical configuration, and said peripheral wall having a front wall portion, a pair of spaced apart side wall portions and a back wall portion spaced from said front wall portion defining a central section therebetween;

a flexible, resilient waterproof adhesive layer substantially coextensive with said middle layer and having an inner surface on said bottom surface of said middle layer and a outer surface, and said outer surface adapted to be adhered to the skin of the person;

a flexible, resilient waterproof top layer on said upper surface of said middle layer and substantially coextensive with said middle layer;

aperture walls in said central section defining a central aperture extending through said middle layer and said adhesive layer and said aperture walls spaced from said peripheral walls to define a frame section between said aperture walls and said peripheral wall;

tab walls in said central section and said tab walls defining a mounting tab portion and said mounting tab portion extending into said central section from a preselected position of said aperture wall, and said tab portion having shank walls defining a shank receiving aperture through said top layer, said middle layer and said adhesive layer for receiving the shank of the infusion device in waterproof sealing relationship thereto.

9. The arrangement defined in claim 8 wherein:

said middle layer is a layer of cellular white cross linked polyurethane foam.

10. The arrangement defined in claim 8 wherein:

said shank walls is a hole.

11. The arrangement defined in claim 8 and further comprising:

an annular donut seal means around said tab walls for providing said watertight sealing relationship to the shank of the infusion device.

12. The arrangement defined in claim 8 wherein:

said mounting tab portion is bendable at said preselected portion of said aperture walls to be bent upwardly therealong, whereby the shank portion of the infusion device is mountable external said top layer and layer and sealed against moisture entering the interior of said central section from region external the top layer at said shank walls and the catheter needle is interior said central section and said interior of said central section is sealed from moisture entering the central section by said waterproof adhesive.