Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1989-08-24
1992-09-15
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604164, 604264, 604 55, 128763, A61M 2500
Patent
active
051473356
ABSTRACT:
A metehod and device for transurethrovesical biopsies, amniocenteses and other biological sampling procedures utilizing a double lumen catheter is achieved by the present invention. The catheter includes a rigid lumen to guide a needle and a second lumen able to pass fluid. In transurethrovesical sampling procedures, the catheter is positioned across the bladder with one end of the catheter against the bladder wall which adjoins the uterus wall. Fluids pass through the second lumen to fill the bladder and increase sonographic visibility allowing the user better visibility for precise placement of the catheter. Preferably, an amniocentesis or biopsy needle is passed through the first rigid lumen, through the bladder wall, through the uterus wall and into the amniotic sac to allow withdrawal of amniotic fluid or other biological sample. The needle may then be withdrawn through the rigid lumen and the catheter removed. In other biosampling procedures, the catheter is positioned across a body cavity to permit filling the cavity with fluid, sampling the target and sonographically viewing the biosampling operation.
REFERENCES:
patent: 3804097 (1974-04-01), Rudie
patent: 4037599 (1977-07-01), Raulerson
patent: 4073297 (1978-02-01), Kopp
patent: 4096860 (1978-06-01), McLaughlin
patent: 4134402 (1979-01-01), Mahurkar
patent: 4308875 (1982-01-01), Young
patent: 4403983 (1983-09-01), Edelman et al.
patent: 4447235 (1984-05-01), Clarke
patent: 4568329 (1986-02-01), Mahurkar
patent: 4583968 (1986-04-01), Mahurkar
patent: 4601701 (1986-07-01), Mueller, Jr.
patent: 4619643 (1986-10-01), Bai
patent: 4626240 (1986-12-01), Edelman et al.
patent: 4808155 (1989-02-01), Mahurkar
patent: 4842582 (1989-06-01), Mahurkar
patent: 4850373 (1989-07-01), Zatloukal et al.
patent: 4935008 (1990-06-01), Lewis, Jr.
J. Parsons, et al., "Oocyte Retrieval for in-v itro Fertilization by Ultrasonically Guided Needle Aspiration Via the Urethra" The Lancet, May 11, 1985, pp. 1076-1077.
W. Butler, et al., "In Vitro Fertilization and Birth After Ultrasonically Guided Transurethral Aspiration of Oocytes", Southern Medical Journal vol. 80, No. 5 (May 1987), pp. 659-662.
Board of Regents , The University of Texas System
Pellegrino Stephen C.
Rafa Michael
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