Surgery – Truss – Pad
Patent
1983-12-30
1986-07-29
Thaler, Michael H.
Surgery
Truss
Pad
128361, A61B 1742
Patent
active
046026231
ABSTRACT:
A method and apparatus for delivering a fetus, particularly a human fetus, are disclosed. One or more sheets of material are disposed in the maternal delivery canal between a part of the fetus and the canal wall. An appropriate surface or surfaces have a low coefficient of friction so that friction between the fetus part and the canal wall is reduced during delivery. In the case of delivery of a human fetus, according to one embodiment, two sheets of material having low coefficient of friction surfaces are arranged side-by-side with the low friction surfaces facing each other, and inserted into the vagina surrounding the fetal head and separating it from the vaginal wall. An inner sheet contacts and surrounds the fetal head while an outer sheet contacts the inner sheet and the vaginal wall. During delivery of the fetal head, the low friction surface of the inner sheet slides substantially frictionlessly relative to the low friction surface of the outer sheet so that friction otherwise present between the fetal head and the vagina is eliminated or substantially reduced. The two sheets can be formed by a single folded sheet.
REFERENCES:
patent: 1782814 (1930-11-01), Froehlich
patent: 2842134 (1958-07-01), Post
patent: 3150662 (1964-09-01), Carlson et al.
patent: 3516406 (1970-06-01), Jensen
patent: 3592198 (1971-10-01), Evans
patent: 3626949 (1971-12-01), Shute
patent: 4136679 (1979-01-01), Martinez et al.
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