Surgery – Truss – Pad
Patent
1987-12-28
1989-01-10
Hindenburg, Max
Surgery
Truss
Pad
128657, 604171, A61B 500
Patent
active
047966424
ABSTRACT:
The pacing lead stylet includes a proximal end, a stylet wire, a decreasing taper, a flat, an increasing taper and a tip. The decreasing taper is connected to the stylet wire and extends in a distal direction away from the wire distal end for a decreasing taper distance. The decreasing taper has a decreasing cross section which is reduced from the stylet cross sectional area to a decreased cross sectional area at a decreasing taper distal end of the decreasing taper. The flat is connected to the decreasing taper and extends in a distal direction away from the decreasing taper distal end for a flat distance to a flat distal end. The increasing taper is connected to the flat and extends in a distal direction away from the flat distal end for an increasing taper distal. The increasing taper has an increasing cross section from the minimum extension to the stylet cross section area. The tip is connected to the increasing taper extends in a distal direction away from the increasing taper for a predetermined distance, preferably equal to at least three pitch distances of a helical coil of the pacing lead. The tip has a generally constant tip cross section area except at a tip distal end which is hemispherical. The tip distal end has a maximum hemispherical cross section area nearly equal to the tip cross section area, and has a hemispherical radius of curvature larger than half a maximum tip cross section.
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Collins Henry W.
Cordis Leads Inc.
Hindenburg Max
Vigil Thomas R.
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