Insertion tool for paddle-style electrode
First Claim
1. A system for implanting a paddle-style electrode in a patient without an insertion needle, the system comprising:
- a lead comprisinga paddle-style electrode platform including a distal end, a proximal end, a back surface, at least one projection along the back surface, an active surface opposite the back surface, and a plurality of electrode contacts formed in two or more columns and disposed on the active surface, each of the at least one projection defining at least one cylindrical lumen, wherein a first portion of the at least one projection is disposed closer to the distal end of the platform than to the proximal end of the platform and a second portion of the at least one projection is disposed closer to the proximal end of the platform than to the distal end of the platform, anda plurality of conductive wires coupled to the plurality of electrode contacts and extending away from the electrode contacts and out of the proximal end of the paddle-style electrode platform; and
an insertion tool to implant the paddle-style electrode platform in the patient without using an insertion needle, the insertion tool including a platform engager for engaging the at least one cylindrical lumen of each of the at least one projection of the electrode platform to guide the electrode platform during placement of the electrode platform in the patient, the platform engager comprising a cylindrical portion for insertion into, and engagement with, the at least one cylindrical lumen of each of the at least one projection, wherein each of the at least one projection maintains the at least one cylindrical lumen even in absence of the insertion tool.
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Accused Products
Abstract
The present disclosure describes various embodiments of an insertion tool that affords steerability of the paddle-style electrode during implantation without causing damage to the insulation and/or the contacts of the paddle-style electrode. One embodiment is described as having a “pin fork” configuration; another a “shovel” configuration; and yet another has tabs or a lumen on the paddle-style electrode for facilitating the insertion of a stylet. The various embodiments for the insertion tool allow for adjustments of the paddle-style electrode in both the medial/lateral and inferior/superior directions allowing the surgeon to steer the paddle-style electrode to the desired stimulation site within the epidural space of the spinal column.
143 Citations
26 Claims
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1. A system for implanting a paddle-style electrode in a patient without an insertion needle, the system comprising:
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a lead comprising a paddle-style electrode platform including a distal end, a proximal end, a back surface, at least one projection along the back surface, an active surface opposite the back surface, and a plurality of electrode contacts formed in two or more columns and disposed on the active surface, each of the at least one projection defining at least one cylindrical lumen, wherein a first portion of the at least one projection is disposed closer to the distal end of the platform than to the proximal end of the platform and a second portion of the at least one projection is disposed closer to the proximal end of the platform than to the distal end of the platform, and a plurality of conductive wires coupled to the plurality of electrode contacts and extending away from the electrode contacts and out of the proximal end of the paddle-style electrode platform; and an insertion tool to implant the paddle-style electrode platform in the patient without using an insertion needle, the insertion tool including a platform engager for engaging the at least one cylindrical lumen of each of the at least one projection of the electrode platform to guide the electrode platform during placement of the electrode platform in the patient, the platform engager comprising a cylindrical portion for insertion into, and engagement with, the at least one cylindrical lumen of each of the at least one projection, wherein each of the at least one projection maintains the at least one cylindrical lumen even in absence of the insertion tool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification