Surgical needle and apparatus for grinding the same
AssigneeMatsutani Seisakusho Co., Ltd.
InventorsKanji Matsutani, Hiroshi Yagisawa, Akira Saitoh
Life of this patent
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Abstract
A surgical needle for sutural treatment having a triangle or polygon body in cross section, including a blunt needle point with a plate or round end and at least two cutting edges to prevent a health care provider from mistakenly hurting themselves even if the needle comes into contact with the tissue of the health care provide, and to provide a property that enables the needle to pass smoothly through tissues. A first face of the body may be ground by a grinding apparatus specially made for the surgical needle to form a tapered slope and the cutting edges. By pressing a material piece of the needle in a V-shaped groove it forms a second and third face and readily produces a high quality surgical needle.
Claims9
A surgical needle having a triangular cross section at a body thereof, said surgical needle comprising:
- a face tapered along a longitudinal direction of said body so that said body has thinner thickness on a tip side thereof than on the opposite side;
- a pair of cutting edges provided at opposite sides of said face in a longitudinal direction of said body;
- and
- a blunt edge provided in opposition to said face, said blunt edge expanding to a needle point so that said surgical needle has no sharp point.
A surgical needle having a polygonal cross section at a body thereof, said surgical needle comprising:
- a first face tapered along a longitudinal direction of said body so that said body has thinner thickness on a tip side thereof than on the opposite side;
- a pair of cutting edges provided at opposite sides of said first face in a longitudinal direction of said body;
- a second face provided in opposition to said first face;
- and
- a needle point formed in a plate shape by and between said first and second faces.
Dependencies are inferred from the claim text.