Implant needle and method

Details Implant needle and method Implant needle and method

1983-01-28

1984-12-25

Pellegrino, Stephen C.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604264, 604272, A61M 500

Patent

active

044901399

ABSTRACT:
An improved subcutaneous implant needle is formed as a hollow tube having its forward end cut on a plane at an acute angle to the central axis of the tube to form an elliptical opening, and an elliptical outer edge having a sharp forward portion. The forward extremity of the needle is dressed to form cutting edges intersecting at an obtuse angle and forming a central point. The dressed edges have a width preferably less than two-thirds the diameter of the tube, and the adjoining side portions of the elliptical outer edge are rendered unsharp and dulled, as by abrasion such as sandblasting or tumbling in abrasive media. The needle is dimpled at two locations closely adjacent the rear of the opening.

REFERENCES:
patent: 2711733 (1955-06-01), Jacaby, Jr.
patent: 3921632 (1975-11-01), Bardani

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