Moulded plastic obstetric forceps

Details Moulded plastic obstetric forceps Moulded plastic obstetric forceps

1996-09-19

1998-12-15

Apley, Richard J.

Surgery

Instruments

Obstetric or gynecological instruments

606119, 606205, 606206, A61G 1742, A61G 1746

Patent

active

058490175

ABSTRACT:
Obstetric forceps have a pair of elongated members, each having a blade at one end, a handle at an opposite end and a shank connecting the blade and handle. The members pivotally engage each other at a pivot point intermediate their ends and freely moveable when so engaged. The blades and shanks of each of the members are resiliently constructed to exert a traction force within a preset margin of safety and to slip when the preset margin of safety is exceeded.

REFERENCES:
patent: 451930 (1891-05-01), Hamilton
patent: 2637320 (1953-05-01), Greenberg
patent: 3088465 (1963-05-01), Smith
patent: 3183911 (1965-05-01), Anglemyer
patent: 3785381 (1974-01-01), Lower et al.
patent: 3789849 (1974-02-01), Laufe et al.
patent: 3789949 (1974-02-01), Laufe et al.
patent: 5019091 (1991-05-01), Porat et al.
patent: 5595569 (1997-01-01), Hebbard
patent: 5599350 (1997-02-01), Schulze et al.
patent: 5674243 (1997-10-01), Hale
Gynecology, Obstetrics-GL, Obstetrical Forceps, Mueller & Co., p. 227, 1963 .

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