Title:
【発明の名称】調整自在な剛性を有する可撓性装置
Document Type and Number:
Japanese Patent JPH08506029
Kind Code:
A
Abstract:
A device comprising a flexible elongate member having proximal and distal extremities. A flexible coil spring is provided having proximal and distal extremities. The proximal extremity of the coil spring is secured to the distal extremity of the flexible elongate member. A shape-memory alloy element is disposed within and extends substantially longitudinally of the coil spring. The shape-memory alloy element has a memory which makes it attempt to assume a straight shape when an electrical current is passed through and heats the same. The shape-memory alloy element also has a stiffness which increases with the temperature of the element. An electrical current supply is provided for supplying an electrical current to the shape-memory alloy element for changing the stiffness of the shape-memory alloy element to thereby stiffen the distal extremity of the flexible elongate member.
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Inventors:
Imran Mia A
Application Number:
JP51318093A
Publication Date:
July 02, 1996
Filing Date:
November 12, 1993
Export Citation:
Assignee:
IntelliWire Incorporated
International Classes:
A61M25/00; A61M25/01; (IPC1-7): A61M25/01; A61M25/00
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)