Vaginal speculum

Details Vaginal speculum Vaginal speculum

1989-12-21

1993-08-03

Graham, Mark S.

Surgery

Truss

Perineal

A61B 132

Patent

active

052319733

ABSTRACT:
A vaginal speculum is disclosed in which a ratcheted linear motion of a thumb pad is translated into a complicated linear, rotational and retractive motion of the speculum paddles to provide anatomically correct motions for dilation of the vagina and the cervix without complicated two-handed adjustments of the speculum. Cam follower pins follow the contours of a cam slot to translate the linear motion into the required complicated motions of the speculum paddles. The ratchet permits easy locking at any degree of opening while unlocking is accomplished simply by depressing the thumb pad to disengage the pawl from the ratchet bars. A fluid reservoir is built into the speculum to capture fluids discharged during examination.

REFERENCES:
patent: 3246646 (1966-04-01), Murphy
patent: 3332414 (1967-07-01), Gasper
patent: 3575163 (1971-04-01), Gasper
patent: 3716047 (1973-02-01), Moore et al.
patent: 3890961 (1975-06-01), Moore et al.
patent: 3985125 (1976-10-01), Rose
patent: 4385626 (1983-05-01), Danz
patent: 4766887 (1988-08-01), Cecil
Codman & Schurtleff, Inc., A to Z Catalog for Surgical Products, pp. 536-537, Dec. 1987.

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