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Needle sheath complex and process for decompression and biopsy

  • US 4,230,123 A
  • Filed: 10/31/1978
  • Issued: 10/28/1980
  • Est. Priority Date: 10/31/1978
  • Status: Expired due to Term
First Claim
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1. A needle sheath complex for use in locating, removing matter from, and inserting devices in human bodies and animal bodies consisting of:

  • a. a probe cannula of tubular shape and consistent diameter having a small enough outer diameter to penetrate sensitive organs, arteries, and other body structures without doing substantial damage;

    b. a stylus slidably located within said probe cannula with a diameter which fills said probe cannula, said stylus having a sharp piercing end and being enough longer than said probe cannula to project slightly from the end of said probe cannula to provide a cutting end;

    c. an outer sheath of tubular shape slidably located over said probe cannula having an inside diameter large enough to remove matter from or insert devices in said bodies, said outer sheath being long enough to extend from the target in the body to the outside of the body and said probe cannula being at least twice that length;

    d. Means for locking said stylus within said probe cannula in position, said means being removable from said probe cannula so that said outer sheath may be removed from said probe cannula whereby said outer sheath may be replaced with an outer sheath which is more rigid, less rigid, or larger in diameter, or capable of procedures different from the outer sheath removed without removing said probe cannula from the body.

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