Medical devices using electrosensitive gels
First Claim
1. An artificial heart valve, comprising a toroidal base defining an interior aperture;
- a plurality of hollow, flexible flaps each having an edge attached to said toroidal base and overlapping the entire interior aperture of said toroidal base;
each flexible flap being filled with ER gel; and
electrode means operably attached to said ER gel in each of said flexible flaps, enabling said flaps to be made flexible or rigid in response to voltage applied to said ER gel.
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Abstract
An intelligent material unit formed of an intelligent gel encapsulated within an enclosure. When the gel is actuated by a change in temperature thereof, such as heat and/or by an externally applied field such as an electrical current, electric field, magnetic field, ultrasonic energy (or sonic), microwave energy, a laser beam or a combination thereof, at least a portion of the wall of the container or enclosure is deformed to perform a mechanical function or operation such as that of an artificial heart valve. The valve may have a toroidal base defining an interior aperture and a plurality of hollow, flexible flaps each having an edge attached to the toroidal base and overlapping the entire interior aperture of the toroidal base. Each flexible flap is filled with a gel with an electrode operably attached to the gel in each of the flexible flaps. This enables the flaps to be made flexible or rigid in response to voltage applied to the gel.
103 Citations
2 Claims
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1. An artificial heart valve, comprising a toroidal base defining an interior aperture;
- a plurality of hollow, flexible flaps each having an edge attached to said toroidal base and overlapping the entire interior aperture of said toroidal base;
each flexible flap being filled with ER gel; and
electrode means operably attached to said ER gel in each of said flexible flaps, enabling said flaps to be made flexible or rigid in response to voltage applied to said ER gel. - View Dependent Claims (2)
- a plurality of hollow, flexible flaps each having an edge attached to said toroidal base and overlapping the entire interior aperture of said toroidal base;
Specification
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- Resources
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Current AssigneeJerome H. Lemelson
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Original AssigneeJerome H. Lemelson
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InventorsLemelson, Jerome H.
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Primary Examiner(s)Yu, Mickey
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Assistant Examiner(s)STEWART, ALVIN J
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Application NumberUS09/039,748Time in Patent Office547 DaysField of Search623/2, 623/3US Class Current623/2.11CPC Class CodesA61K 9/0009 involving or responsive to ...A61M 25/01 Introducing, guiding, advan...A61M 25/0116 self-propelled, e.g. autono...A61M 25/10 Balloon catheters A61M25/01...
