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Slotted regional anesthesia needle

  • US 5,853,391 A
  • Filed: 07/01/1996
  • Issued: 12/29/1998
  • Est. Priority Date: 07/01/1996
  • Status: Expired due to Fees
First Claim
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1. A hypodermic needle device comprising:

  • a hypodermic needle having a barrel portion with inner and outer walls and a distal end and an opposed proximal end;

    a slot axially directed along the length of said hypodermic needle from said distal end to said opposed proximal end, said slot having a minimum width dimension; and

    an instrument having an instrument outer diameter, an instrument distal end and an instrument proximal end, inserted into said hypodermic needle device, said instrument comprising a hollow, cannulated stylet, and said slot minimum width dimension being less than said instrument outer diameter and not less than a dimension through which said hollow cannulated stylet can pass therethrough.

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