Stylet unit

Details Stylet unit Stylet unit

1996-11-29

1998-03-03

Hindenburg, Max

Surgery

Truss

Pad

128657, 128658, A61B 500

Patent

active

057224250

ABSTRACT:
A stylet unit, which can be introduced into a hollow, flexible component, such as an electrode cable, to stiffen the component and to bend a distal end section is formed by a double stylet combination of a flexible tubular stylet shell and an internal stylet, movably arranged inside the shell's channel, with a pre-curved distal end section. This end section can be set at a retracted internal position inside the stylet shell or at an exposed position outside the shell. The internal stylet's pre-curved distal end section is made of a memory metal and has a radius of curvature which varies longitudinally along the end section. The end section can be in the shape of a spiral, and the memory metal can be made of a nickel-titanium alloy.

REFERENCES:
patent: 4136703 (1979-01-01), Wittkampf
patent: 4170990 (1979-10-01), Baumgart et al.
patent: 4913147 (1990-04-01), Fahlstrom et al.
patent: 5170787 (1992-12-01), Lindegren
patent: 5190546 (1993-03-01), Jervis
patent: 5383923 (1995-01-01), Webster, Jr.
patent: 5447512 (1995-09-01), Wilson et al.
patent: 5582609 (1996-12-01), Swanson et al.

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