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Medical needle and needle sheath assembly

  • US 5,336,199 A
  • Filed: 11/12/1993
  • Issued: 08/09/1994
  • Est. Priority Date: 11/12/1993
  • Status: Expired due to Fees
First Claim
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1. In a medical needle and needle sheath assembly, in combination;

  • a core clip element supporting a double-ended medical needle with exposed tips;

    a sheath sub-assembly attached to said clip element in surrounding relation to a portion of said double-ended medical needle and having a retracted condition and an extended condition;

    a multiplicity of cooperating sheath elements nested with respect to each other in said sub-assembly retracted condition and non-nested with respect to each other in said sub-assembly extended condition;

    compression spring means urging said sheath sub-assembly to said sub-assembly extended condition when compressed; and

    releasable latch means securing said sheath sub-assembly to said clip element in said sheath sub-assembly retracted condition, said latch means being released by rotation relative to said clip element to cause said sheath sub-assembly to assume said sub-assembly extended condition by the action of said compression spring means.

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