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Venipuncture device

  • US 4,496,348 A
  • Filed: 11/29/1979
  • Issued: 01/29/1985
  • Est. Priority Date: 11/29/1979
  • Status: Expired due to Term
First Claim
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1. An improved venipuncture device comprising catheter means having a catheter hub attached thereto at a first end;

  • needle means having needle hub means attached thereto at a first end and a sharpened tip at a second end, said needle means extending coaxially through said catheter means with said sharpened tip extending from said catheter means at a second end and being adapted for insertion and removal from said catheter means;

    a penetrable elastic sealing member positioned within and adapted for sealing said catheter hub;

    compression means for the compression of said penetrable elastic sealing member coincident with the longitudinal axis of said penetrable elastic sealing member, said compression means having an aperture therethrough for the passage of said needle means;

    said compression means being constructed and arranged to reseal the opening through said penetrable elastic sealing member created by the withdrawal of said needle means from said penetrable elastic sealing member;

    said compression means comprising;

    a plurality of spring members coaxially aligned and juxtaposed to said penetrable elastic sealing member for the compression of said penetrable elastic sealing member.

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