Surgery – Truss – Pad
Patent
1979-02-14
1981-03-10
Truluck, Dalton L.
Surgery
Truss
Pad
128262, 128344, 128349B, A61M 2500
Patent
active
042547741
ABSTRACT:
A single-lumen, one piece catheter approximately 0.04 inch in diameter with an integral balloon at its end having a wall thickness of 0.005 inch or less, sufficiently small to be retractible by suction into the catheter and to be extensible at a desired site by fluid pressure. The balloon may have a calibrated restricted leak aperture. The balloon portion of the catheter is made by heating a portion of the catheter tubing, stretching the tubing lengthwise, and applying fluid pressure to the tubing. The apparatus for forming the balloon includes a spring-loaded clamp to hold the tubing at one end, a capstan to hold the tubing at the other end, a heating coil wrapped around the tubing near the clamped end thereof and mounted with the clamp, and a mechanism for controlling the pressure and volume of the pressurizing gas entering the lumen of the tube in accordance with the retractile movement of the spring-loaded clamp.
REFERENCES:
patent: 3050066 (1962-08-01), Koehn
patent: 3664328 (1972-05-01), Moyle et al.
patent: 3911927 (1975-10-01), Rich et al.
patent: 4029104 (1977-06-01), Kerber
patent: 4085757 (1978-04-01), Pevsner
patent: 4109659 (1978-08-01), Sheridan
Kerber-"Diagnostic Radiology", Sep. 1976, Univer. Oregon.
Serbinenko-"J. Neurosurgery", vol. 41, Aug. 74, pp. 125-145.
The United States of America as represented by the Department of
Truluck Dalton L.
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