Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Reexamination Certificate
2005-09-20
2005-09-20
Rodriguez, Cris L. (Department: 3763)
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
C604S035000, C604S043000, C606S159000
Reexamination Certificate
active
06945951
ABSTRACT:
Cross stream thrombectomy catheter and system for fragmentation and removal of thrombus or other material from blood vessels or other body cavities. High velocity saline jets emitted from a toroidal loop jet emanator or other jet emanator in a catheter distal end entrain fluid through inflow orifices, and with flow resistances create a back-pressure which drives cross stream streams through outflow orifices in a radial direction and thence radially and circumferentially to apply normal and drag forces on thrombotic deposits or lesions in the blood vessel or other body cavity, thereby breaking apart and transporting thrombus particles to be entrained through the inflow orifices, whereupon the high velocity jets macerate the thrombus particles which then transit an exhaust lumen or recirculate again via the outflow orifices.
REFERENCES:
patent: 5496267 (1996-03-01), Drasler et al.
patent: 6096001 (2000-08-01), Drasler et al.
patent: 6224570 (2001-05-01), Le et al.
Beaupre Rosemary C.
Bonnette Michael J.
Bridgeman John B.
Dutcher Robert C.
Jenson Mark L.
Jaeger Hugh D.
Possis Medical, Inc.
Rodriguez Cris L.
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