Tethered coil for treatment of body lumens

Details Tethered coil for treatment of body lumens Tethered coil for treatment of body lumens

2007-11-09

2011-10-11

Nguyen, Anhtuan (Department: 3731)

Surgery

Instruments

Internal pressure applicator

Reexamination Certificate

active

08034075

ABSTRACT:
Disclosed is an apparatus and a method for removable of undesired material from body lumens. The apparatus may be used for fragmenting or removing a thrombus or occlusion from a blood vessel. The apparatus includes first shape segments and second shape segments connected to form a coiled member. A longitudinally extending tether is positioned inside the first shape segments and outside the second shape segments along the length of the coil. Applying a proximal force on the tether produces a change in the shape of at least a portion of the coil from a first generally linear configuration to a second complex three dimensional shape. A method of using the apparatus to engage and remove, or fragment, the thrombus or occlusion is disclosed.

REFERENCES:
patent: 4706671 (1987-11-01), Weinrib
patent: 5226911 (1993-07-01), Chee et al.
patent: 7055812 (2006-06-01), Balsells
patent: 2006/0229638 (2006-10-01), Abrams et al.
patent: 2008/0091223 (2008-04-01), Pokorney
patent: 2006107641 (2006-10-01), None
International Search Report issued Jan. 20, 2009, pp. 1-4.

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