Method for using a variable stiffness guidewire

Using a variable stiffness guidewire to cross a stenosed region of a patient's vasculature by advancing the distal end of the guidewire to the stenosed region, reducing the flexibility of the distal end of the guidewire, and further advancing the distal end through and past the stenosed region...

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Bibliographic Details
Main Authors TREMULIS; WILLIAM S, MIRZAEE; DARYUSH
Format Patent
LanguageEnglish
Published 25.02.1997
Edition6
Subjects
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:Using a variable stiffness guidewire to cross a stenosed region of a patient's vasculature by advancing the distal end of the guidewire to the stenosed region, reducing the flexibility of the distal end of the guidewire, and further advancing the distal end through and past the stenosed region of the lumen. The variable stiffness guidewire has a longitudinally movable core member with a proximal end and a shapable distal end, a compressible body is slidably mounted on the core member, with one end of the compressible body secured to the end of the core member, and a tubular support member is disposed about the core member with a distal end that abuts the proximal end of the compressible body. The guidewire further comprises a tensioning means at the proximal end to move the core member longitudinally with respect to the tubular support member so as to compress and reduce the flexibility of the compressible body.
Bibliography:Application Number: US19930115225