Medical injection patch

• US 6,524,284 B1
• Filed: 03/31/2000
• Issued: 02/25/2003
• Est. Priority Date: 03/31/2000
• Status: Expired due to Fees

• Current Assignee: John M. Marshall
• Original Assignee: John M. Marshall
• Inventors: Marshall, John M.
• Primary Examiner(s): Michalsky, Gerald A.
• Application Number:
  US09/540,173
• Time in Patent Office: 1,061 Days
• Field of Search: 604/180, 604/272
• US Class Current: 604/272
• CPC Class Codes: A61F 13/0206 with absorbent fibrous layers, e.g. woven or non-woven absorbent pads or island dressings
• CPC Class Codes: A61F 13/0226 characterised by the support layer
• CPC Class Codes: A61M 5/32 Needles; Details of needles pertaining to their connection with syringe or hub infusion needles A61M5/158; Accessories for bringing the needle into, or holding the needle on, the body A61M5/42, A61M5/46 take precedence; guide needles for catheters A61M25/065; Devices for protection of needles apparatus specially adapted for cleaning or sterilising needles A61M5/001

Abstract

This invention relates to a self adhering patch which is positioned upon the needle of a syringe. When the skin of the patient is pierced with the hypodermic needle the patch comes into contact with the skin, self adhering to the skin. As the needle is withdrawn from the patient, the patch remains upon the skin of the patient and serves as a seal against the expulsion of blood or other body fluids from the injection site.

Claims

1. A method of inserting a needle into the skin of a medical patient comprising the steps:

providing a self-sealing patch,

impaling said self-sealing patch upon said needle through an opening in said self-sealing patch prior to insertion of said needle,

inserting said needle into said skin with said self-sealing patch contacting and adhering to said skin, and

withdrawing said needle from said skin with the self-sealing patch remaining upon said skin so that the opening in said self-sealing patch substantially closes and seals said skin at the insertion point of said needle to prevent blood and other bodily fluids from seeping therefrom.

2. In combination, a medical device comprising a needle adapted for insertion into the skin of medical patient and a patch for adherence to said skin about the area of insertion and carried releasably upon said needle prior to and during said insertion, said patch including an absorbent material for absorbing blood and other bodily fluids, and an adhesive for retaining said patch on the skin of patient after said needle is removed, wherein said patch includes an opening through which said needle is inserted, and said opening extends through said absorbent material, said opening through said absorbent material substantial coinciding with the diameter of said needle.

3. The combination of claim 2 wherein said absorbent material is self-sealing so that the opening in said patch is substantially closed upon removal of said needle.

4. The combination of claim 2, wherein said patch includes a self-sealing membrane, and said self-sealing membrane seals the opening in said patch when said needle is removed.

5. In combination, a medical device comprising a needle having a pointed end adapted for insertion into the skin of a medical patient and a self-sealing patch for adherence to said skin about the area of insertion and carried releasably upon said needle prior to and during said insertion, said patch including a layer of absorbent material towards the pointed end of said needle and a self-sealing membrane for inhibiting blood or body fluids from seeping from an opening formed in the patient'"'"'s skin by said needle after said needle is removed from the patient, wherein said layer of absorbent material extends substantially across the width of the patch.

6. The combination of claim 5, wherein the layer of absorbent material carries an adhesive for adhering the patch to the skin of the patient.