Surgical needle and mold for manufacturing the same

Details Surgical needle and mold for manufacturing the same Surgical needle and mold for manufacturing the same

1995-03-07

1998-05-12

Schmidt, Jeffrey A.

Surgery

Instruments

Suturing needle

163 5, A61B 1700

Patent

active

057498970

ABSTRACT:
A surgical needle has a top edge formed by two pressed faces located inside or outside of curvature from pressing a material blank made of austenitic stainless steel having fibrous texture and cutting edges formed on both sides of a base. The top edge is sharp at a needle point and the sharp needle point is constituted of fibrous texture formed at the surface layer of the material blank. Grinding marks extending crosswise formed on the face of the mold are transferred to the pressed faces. A mold constitutes plural faces forming projecting angles (angle between two intersecting faces is 180.degree. or below, and the line at which the two faces intersect is made as a projecting line) along edges of the blocks made of two rectangular prisms, and constitutes a cavity by suitably contacting the edges of the blocks.

REFERENCES:
patent: 3038475 (1962-06-01), Orcutt
patent: 4932962 (1990-06-01), Yoon et al.
patent: 5155943 (1992-10-01), Matsutani et al.
Patent Abstracts of Japan, vol. 6, No. 263(M-181) Dec. 22, 1982 and JP-A-57 156140, Sep. 27, 1982.
Patent Abstracts of Japan, vol. 14, No. 367 (M-1008), Aug. 9, 1990 and JP-A-02 133137, May 11, 1990.

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