Multi-filar, cross-wound coil for medical devices

Details Multi-filar, cross-wound coil for medical devices Multi-filar, cross-wound coil for medical devices

1988-03-21

1990-06-12

Truluck, Dalton L.

Surgery

Truss

Pad

128657, A61M 2500

Patent

active

049324195

ABSTRACT:
A flexible catheter-like guidewire has a multi-filar, cross-wound coil body terminating in a distal ball tip element. The body has a first inner coil of multiple coil wires wound in a first helical direction and a second outer coil of multiple coil wires disposed thereabout and wound in a second opposite helical direction. The body defines an elongated lumen opening proximally. The guidewire further includes a proximal handle and, extending therefrom, a core sized and adapted to be received through the proximal opening into the body lumen. The core, by movement of the handle relative to the body, is adapted for axial movement within the body for adjustment of the flexibility of the distal region of the device. A proximal connector joins the lumen, with the core removed, to a source of fluid, and a sheath associated with the body seals the lumen for transport of fluid introduced through the proximal opening, through the lumen to be delivered radially from the lumen in the distal tip region of the device.

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