Needle guard assembly

• US 5,651,772 A
• Filed: 02/28/1996
• Issued: 07/29/1997
• Est. Priority Date: 02/28/1996
• Status: Expired due to Term

• Current Assignee: Span-America Medical Systems Inc. (Savaria Corp.)
• Original Assignee: Aeroquip Corporation (Eaton Corporation PLC.)
• Inventors: Arnett, Jeffery D.
• Primary Examiner(s): Rimell, Sam
• Assistant Examiner(s): Racunas, Robert V.
• Application Number:
  US08/608,050
• Time in Patent Office: 517 Days
• Field of Search: 604/164, 604/165, 604/166, 604/167, 604/198
• US Class Current: 604/164.01
• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle

Abstract

The present invention is directed to a needle guard assembly including a needle, a body and a handle. The body defines a chamber for receiving the needle. The handle moves the needle from the exterior of the body into the chamber.

Claims

1. A needle guard assembly comprising:

a needle having a pointed end and an opposed handle end;

a body having a first end and a second end, said body including a side wall extending longitudinally between said first and second ends, said side wall defining a chamber for receiving said needle, said first end defining a needle opening for receiving said needle, said second end including a ramp having an inclined surface, said side wall defining a slot extending between said first end and said second end; and

a handle having a gripping member in communication with a needle hub, said needle hub being attached to said handle end of said needle, said needle hub defining a foot being received by said slot, whereby movement of said handle from said first end to said second end causes corresponding movement of said needle through said needle opening into said chamber, during such movement said foot travels along said slot until said foot moves up said inclined surface of said ramp to allow said handle to twist with respect to said body thereby causing said needle to become misaligned with said needle opening to prevent said pointed end of said needle from exiting said chamber through said needle opening.

2. The invention of claim 1, wherein a needle passageway extends from said pointed end to said handle end.

3. The invention of claim 1, wherein said first end includes an end cap.

4. The invention claim 3, wherein said end cap defines said needle opening for receiving said needle.

5. The invention of claim 3, wherein said end cap includes attachment means to attach said body to an appliance.

6. The invention of claim 5, wherein said attachment means includes threads.

7. The invention of claim 5, wherein said appliance is a valve assembly having a catheter through which needle extends for insertion of said catheter into a blood vessel.