A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/01 (2006.01)
Patent
CA 2114222
2114222 9304724 PCTABS00020 A steerable stylet and manipulative handle assembly especially adapted for guiding the introduction of an endocardial pacing or cardioversion/defibrillation lead or a catheter to a desired location in a patient's cardiovascular system. The steerable stylet or catheter designed to be introduced into the lumen of a lead comprises an outer, elongated tubular member, a traction element or pull wire extending generally through the length of the tubular member and within its lumen except for a predetermined distance in the distal portion thereof, and a manipulative handle coupled to the proximal ends of the tubular member and wire which may be employed with one hand to both rotate the tubular member and impart a continuously variable curve in the distal portion thereof. The distal portion of the tubular member is especially configured to be either attached to or cooperate with the distal end of the pull wire so that proximally-directed traction applied by the handle to the wire causes the distal portion of the tubular member to bend. The distal portion of the tubular member is provided with openings to allow the wire to exit and re-enter the lumen of the tubular member in the distal portion so that traction applied to the wire bows the tubular member into a curve of desired radius.
Brennen Kenneth R.
Pohndorf Peter J.
Medtronic Inc.
Smart & Biggar
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