Stylet for guiding leads of implantable electric stimulation systems and methods of making and using
First Claim
1. A stylet comprisingan elongated body with a distal portion, a proximal portion, and a proximal tip;
- anda cap having a proximal end and a distal end, the cap comprisingan inner housing defining a central lumen, the central lumen configured and arranged to receive the proximal portion of the elongated body, the inner housing comprising an interference flange and at least one clamping member, the at least one clamping member configured and arranged for providing resistive force against the elongated body,an outer housing comprising an outer flange configured and arranged to press against at least one of the clamping members, anda compressed spring positioned between the interference flange and the outer flange, an initial compression value of the compressed spring at least partially determining the amount of force with which the outer flange presses against at least one of the clamping members.
1 Assignment
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Accused Products
Abstract
A lead assembly includes a lead and a stylet. The lead has a distal end, a proximal end, and an outer lead covering. The lead includes a plurality of electrodes disposed at the distal end, a plurality of terminals disposed at the proximal end, and at least one lumen defined in the lead that extends from the distal end to the proximal end. The lead also includes a plurality of conductive wires electrically coupling the plurality of electrodes to the plurality of terminals. The stylet is configured and arranged for inserting into one of the at least one lumens of the lead. The stylet includes an elongated body and a protective feature that is coupled to the elongated body. The protective feature is configured and arranged for absorbing or redirecting an amount of force applied to the stylet above a threshold amount of force.
63 Citations
12 Claims
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1. A stylet comprising
an elongated body with a distal portion, a proximal portion, and a proximal tip; - and
a cap having a proximal end and a distal end, the cap comprising an inner housing defining a central lumen, the central lumen configured and arranged to receive the proximal portion of the elongated body, the inner housing comprising an interference flange and at least one clamping member, the at least one clamping member configured and arranged for providing resistive force against the elongated body, an outer housing comprising an outer flange configured and arranged to press against at least one of the clamping members, and a compressed spring positioned between the interference flange and the outer flange, an initial compression value of the compressed spring at least partially determining the amount of force with which the outer flange presses against at least one of the clamping members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification