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Injection device, screw-type syringe for use therewith, and method for treating mammalian body

  • US 20040158136A1
  • Filed: 11/25/2003
  • Published: 08/12/2004
  • Est. Priority Date: 11/25/2002
  • Status: Active Grant
First Claim
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1. An injection device for use with tissue of a mammalian body comprising a first tubular member and a second tubular member slidably disposed in the first tubular member, the first and second tubular members having respective proximal and distal extremities, the distal extremity of the second tubular member being provided with a needle that is extendable from the distal extremity of the first tubular member and means carried by the proximal extremities of the first and second tubular members for locking the proximal extremity of the second tubular member relative to the proximal extremity of the first tubular member, the second tubular member having a column strength when locked within the first tubular member for limiting retraction of the second tubular member relative to the first tubular member during puncture of the tissue by the needle.

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