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Intravenous catheter placement device

  • US 4,944,728 A
  • Filed: 10/17/1988
  • Issued: 07/31/1990
  • Est. Priority Date: 10/17/1988
  • Status: Expired due to Fees
First Claim
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1. A safe intravenous catheter placement device comprising:

  • an elongated, tubular needle having a hollow interior and having a sharpened, pointed first end and a second end, said tubular needle having a plurality of radial blood flash ports extending radially through the wall of said needle at a location nearer to said second end of said needle than to said first end of said needle for discharging out through said radial flash ports, blood passing through said needle from a blood vessel;

    a tubular intravenous catheter end section positioned concentrically around a portion of said needle and including;

    a first end adjacent the sharpened point at said first end of said needle and slidably encircling the outer periphery of the needle; and

    an open, second end;

    a protective sheath subassembly around a portion of said needle, which portion of said needle is located between the first end thereof and the second end thereof, and includes the second end thereof, said protective sheath subassembly comprising;

    an elongated, tubular sheath which includes at the end thereof closest to the pointed first end of said needle, a transparent cylindrical end portion encircling the medial portion of said needle between the ends of said needle and removably connected to the open second end of said catheter end section, said tubular sheath further including a blood-receiving flash chamber surrounding the portion of said needle having said radial blood flash ports therethrough, said flash chamber being located adjacent said transparent cylindrical end portion, said elongated tubular sheath surrounding a portion of said needle which is spaced therealong from said pointed first end of said needle; and

    manual retracting means connected to said second end of said needle for retracting said needle through said catheter end section and said transparent cylindrical end portion, and into said tubular sheath so that said pointed first end of said needle is within said tubular sheath, said manual retracting means comprising;

    an elongated tubular shaft having one of its ends connected to the second end of said tubular needle and defining a passageway communicating with the hollow interior of the needle; and

    handle means connected to said elongated tubular shaft and including removable cap means selectively closing said tubular shaft at its end opposite its end connected to the second end of said needle; and

    means for locking said needle in a retracted, protected position in which said pointed first end is within, and is protected by, said elongated tubular sheath.

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