Stylet unit for stiffening a hollow, flexible, elongated component
AssigneePacesetter, Inc.
InventorsMats Bostrom, Ulf Lindegren
Life of this patent
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Abstract
A stylet unit which can be introduced into a narrow, hollow, flexible component, such as a hollow electrode cable for a heart stimulator, to stiffen the component and bend its distal end section, is in the form of a double stylet combination with a flexible stylet shell and an internal stylet, movably arranged inside the shell, with a pre-curved distal end section, whose radius of curvature is on a first side of the stylet. In an area before the pre-curved end section, the stylet has a pre-shaped stylet section with a pre-shaped stylet section whose radius of curvature is on the side of the stylet opposite the first side on which the end section's radius of curvature lies.
Claims9
A stylet unit and component combination comprising:
- a flexible, tubular stylet shell having an internal longitudinal channel therein;
- an internal stylet having a pre-curved distal end section, said internal stylet being slideable within said channel between a retracted position wherein said distal end section is completely contained within said shell and a deployed position wherein said distal end section projects from said shell, said distal end section having a radius of curvature on a first side of said stylet and said stylet having a pre-shaped stylet section preceding said distal end section having a curve with a radius of curvature disposed on an opposite side of said stylet from said first side;
- and
- a hollow, flexible elongated component having a first end section into which the stylet unit is removably introducible for stiffening the component and to bend a second end section of the component, opposite said first end section.
Dependencies are inferred from the claim text.