Surgery – Truss – Pad
Patent
1977-05-20
1979-03-27
Trapp, Lawrence W.
Surgery
Truss
Pad
A61F 546
Patent
active
041460243
ABSTRACT:
An intracervical contraceptive device comprising a tubular member open at each end and adapted to be positioned in the cervical canal and having a valve member incorporated therein which allows body fluids to pass from the uterine cavity into the vagina but not in the reverse direction.
REFERENCES:
patent: 2836177 (1958-05-01), Sells
Trapp Lawrence W.
Wray James C.
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