Steerable catheter

Details Steerable catheter Steerable catheter

1987-05-19

1989-06-13

Ostrager, Allen M.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

A61M 3700

Patent

active

048388599

ABSTRACT:
Steerable catheters are achieved using a filament which changes its configuration in response to a changed environmental condition (e.g. temperature) and a controller to change that environmental condition as desired. Alternatively, inflatable members can be used to steer the catheter by deflecting its tip. Catheter propulsion is achieved using an inflatable member which creates a wave-action as it is inflated. Finally, multiple tendons, connected in mirror image positions at the catheter handle and tip, respectively, reflect manipulation of the handle in the tip, to facilitate steering the tip.

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patent: 4503842 (1985-03-01), Takayama
patent: 4543090 (1985-10-01), McCoy
patent: 4545390 (1985-10-01), O'Leary
patent: 4601705 (1986-07-01), McCoy
patent: 4619263 (1986-10-01), Frisbie

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