Catheter for measuring intrauterine pressure

Details Catheter for measuring intrauterine pressure Catheter for measuring intrauterine pressure

1978-04-17

1981-02-24

Michell, Robert W.

Surgery

Truss

Pad

128673, 128349R, 73706, A61B 1742

Patent

active

042521319

ABSTRACT:
A catheter is disclosed for measuring the intrauterine pressure of a woman in labor. It comprises an elongated flexible tube filled with liquid and having one end apertured to permit the liquid therein to communicate with bodily fluids in the uterus; the other end is sealed by a relaxed diaphragm. The catheter tube is inserted into a curved guide tube which is scored at the end adjacent the apertured end of the catheter to permit the catheter to be extended from the guide tube. The guide tube is also scored along its length to permit a portion of the wall of the guide tube to be peeled away leaving a longitudinal slot through which the catheter can be passed after insertion into the uterus. The catheter and guide tube are disposed in a liquid-tight envelope, the open end of which is sealed about the catheter to prevent escape of the liquid within the catheter. A leg plate for supporting a pressure transducer includes means for removably connecting the catheter to the transducer and means for removably attaching the leg plate to the skin of the patient.

REFERENCES:
patent: 2845930 (1958-08-01), Brown
patent: 3095871 (1963-07-01), Mann et al.
patent: 3157201 (1964-11-01), Mann
patent: 3380448 (1968-04-01), Sadove
patent: 3559643 (1971-02-01), Pannler, Jr.
patent: 3581733 (1971-06-01), Grandjean
patent: 3877429 (1975-04-01), Rasumoff
patent: 4023559 (1977-05-01), Gaskell
patent: 4030481 (1977-06-01), Hill
patent: 4136681 (1979-01-01), Hon
"Obstetrics", Taylor, Williams & Wilkins Co., Baltimore, Md., 1972, pp. 95-96.

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