Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1994-08-01
1996-07-02
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604281, A61M 3700, A61M 2500
Patent
active
055316859
ABSTRACT:
An apparatus includes a flexible tubular member containing a shape-memory tube formed to include a lumen extending along the central axis of the tubular member. A liner sleeve extends through the lumen of the shape-memory tube and lies inside the tubular member. A control system selectively heats the shape-memory tube to its activated state causing the shape-memory tube to move toward a predetermined shape if it is different than its present configuration. Whether the shape-memory tube moves or not, it will increase significantly in stiffness, both axial and bending to help retain, hold, or wedge the apparatus in place in a selected body cavity while catheters or other objects are passed through a lumen in the liner sleeve.
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Forman Michael R.
Hemmer Chad G.
McGrath Jonathan R.
Steen John A.
Catheter Research, Inc.
Cermak Adam J.
Schneider (USA) Inc.
Yasko John D.
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