Surgery – Truss – Perineal
Patent
1976-04-27
1977-04-12
Howell, Kyle L.
Surgery
Truss
Perineal
33174D, A61B 510
Patent
active
040168670
ABSTRACT:
A uterine caliper and sound consisting of an elongated body having outwardly biased resilient caliper wings and a spring-loaded slidable cervical stop. A slide on the body is operatively connected to the wings by a monofilament and operates with respect to a first scale on the body as a width indicator. A rod extending longitudinally on the body is connected to the cervical stop and cooperates with a second scale on the body as a depth indicator. The instrument can be positioned to measure the distance from the outer cervical ostium to the fundus, as read on said second scale. The wings may be allowed to open by moving the slide, and when the wings engage the utero-tubal junctions, the width may be read on said first scale. By adjustment of the caliper wings the instrument may be retracted until the resistance of the inner ostium of the cervix is felt, enabling the length of the cervical canal to be read directly by the position of the longitudinal indicator rod with respect to said second scale. The instrument may be employed to measure the width of the uterine cavity at any position between the inner ostium of the cervix and the fundus.
REFERENCES:
patent: 512025 (1894-01-01), Haviland
patent: 1856295 (1932-05-01), Sovatkin
patent: 3095871 (1963-07-01), Mann et al.
patent: 3630190 (1971-12-01), Baker
patent: 3706307 (1972-12-01), Hasson
patent: 3738355 (1973-06-01), Salvatore
patent: 3938504 (1976-02-01), Oakes et al.
Fish Thomas M.
King Loyd L.
Wheeler Robert G.
Howell Kyle L.
The United States of America as represented by the Secretary of
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