Lead tracking and positioning system and method
First Claim
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1. A lead placement system for placing a lead in a subject, the lead placement system comprising:
- the lead;
a stylet comprising a body, a curved portion and an angled portion, whereinthe stylet is tubular shaped,the body extends along a first axis between a proximal end of the stylet and the curved portion,the angled portion extends along a second axis from the curved portion to a distal end of the stylet, andthe second axis is at a fixed predetermined angle relative to the first axis;
a first tracking device disposed within the angled portion;
a second tracking device disposed (i) within the stylet, (ii) within or proximal the curved portion, and (iii) proximal to the first tracking device,wherein the stylet is configured to be inserted in and extend along at least a portion of the lead; and
a plurality of electrodes (i) configured to supply an electrical current to the subject to stimulate the subject, and (ii) disposed on the lead and surrounding portions of at least one of the angled portion, the curved portion and the body,whereinthe lead has an inner diameter and an outer diameter,each of the plurality of electrodes has an inner diameter and an outer diameter, andat least one of (i) the inner diameter of each of the plurality of electrodes is equal to the inner diameter of the lead, or (ii) the outer diameter of each of the plurality of electrodes is equal to the outer diameter of the lead.
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Accused Products
Abstract
Image data can be obtained with an imaging device. A location of the imaging device relative to a subject can be determined. A location of an instrument can be tracked relative to the subject using a tracking system. Also, the tracked location of the instrument can be illustrated relative to the image data.
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Citations
30 Claims
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1. A lead placement system for placing a lead in a subject, the lead placement system comprising:
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the lead; a stylet comprising a body, a curved portion and an angled portion, wherein the stylet is tubular shaped, the body extends along a first axis between a proximal end of the stylet and the curved portion, the angled portion extends along a second axis from the curved portion to a distal end of the stylet, and the second axis is at a fixed predetermined angle relative to the first axis; a first tracking device disposed within the angled portion; a second tracking device disposed (i) within the stylet, (ii) within or proximal the curved portion, and (iii) proximal to the first tracking device, wherein the stylet is configured to be inserted in and extend along at least a portion of the lead; and a plurality of electrodes (i) configured to supply an electrical current to the subject to stimulate the subject, and (ii) disposed on the lead and surrounding portions of at least one of the angled portion, the curved portion and the body, wherein the lead has an inner diameter and an outer diameter, each of the plurality of electrodes has an inner diameter and an outer diameter, and at least one of (i) the inner diameter of each of the plurality of electrodes is equal to the inner diameter of the lead, or (ii) the outer diameter of each of the plurality of electrodes is equal to the outer diameter of the lead. - 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)
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26. A method of placing a lead in a subject, the method comprising:
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positioning a stylet within the lead, wherein the lead has a plurality of electrodes on the lead, wherein the lead has an inner diameter and an outer diameter, wherein each of the plurality of electrodes has an inner diameter and an outer diameter, and wherein at least one of (i) the inner diameter of the plurality of electrodes is equal to the inner diameter of the lead, or (ii) the outer diameter of the plurality of electrodes is equal to the outer diameter of the lead; holding the stylet in a fixed relationship with the lead such that the lead moves with the stylet, wherein the stylet comprises a body, a curved portion and an angled portion, wherein the stylet is tubular shaped, the plurality of electrodes surround portions of at least one of the angled portion, the curved portion and the body, the body is proximal to the curved portion and extends along a first axis between a proximal end of the stylet and the curved portion, the angled portion is distal to the curved portion and extends along a second axis from the curved portion to a distal end of the stylet, and the second axis is at a fixed predetermined angle relative to the first axis; tracking a first tracking device disposed within the angled portion; tracking a second tracking device disposed within the stylet; displaying an icon representing a position of at least one of the stylet and the lead; and supplying an electrical current via the plurality of electrodes to the subject to stimulate the subject. - View Dependent Claims (27, 28, 29, 30)
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Specification