Rotary atherectomy or thrombectomy device with centrifugal trans

Details Rotary atherectomy or thrombectomy device with centrifugal trans Rotary atherectomy or thrombectomy device with centrifugal trans

1994-05-05

1994-12-27

Rosenbaum, C. Fred

Surgery

Instruments

Cutting, puncturing or piercing

604 22, A61B 1732

Patent

active

053761006

ABSTRACT:
The atherectomy or thrombectomy device according to the invention comprises a rotary member composed of flexible filiform elements, which are joined by their two ends, the distal end and the proximal end; it contains no mechanical means for bringing said ends closer and the speed of rotation of the rotary member is sufficient, notably higher than 30,000 rays/min. to achieve the transversal expansion of the filiform elements under the effect of the centrifugal force.
Preferably, the rotary member is constituted by a conduit, such as a conduit in polytetrafluoroethylene provided with one or two sets of longitudinal slits symmetricaly distributed over its periphery and defining flexible strips.

REFERENCES:
patent: 4790813 (1988-12-01), Kensey
patent: 4886061 (1989-12-01), Fischell et al.
patent: 5030201 (1991-07-01), Palestront
patent: 5100424 (1992-03-01), Jong et al.
patent: 5192291 (1993-03-01), Pannek, Jr.

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