Cannula needle for catheter

Details Cannula needle for catheter Cannula needle for catheter

A - Human Necessities

61

M

26/111, 128/93

A61M 5/32 (2006.01) A61M 25/00 (2006.01) A61M 25/06 (2006.01)

Patent

CA 1173714

- 1 - CANNULA NEEDLE FOR CATHETER: BY: RONALD B. LUTHER PETER F. FREY MARSHALL F. SPARKS ABSTRACT OF THE DISCLOSURE: A cannula needle for a catheter is provided from flat metal sheet blank stock. A groove of controlled depth is formed on the metal sheet which is then rolled to produce a hollow barrel having a slit parallel to the longitudinal axis; the barrel is then cut into individual needles. Gripping wings are then welded to each needle on either side of the slit in a separate operation. In use, when the wings are flexed, the needle will easily split in half along the groove. This enables the cannula to be separated from the catheter. - 1 -

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