Combination Electrical Stimulating And Infusion Medical Device and Method
First Claim
1. An electrical stimulation device especially adapted for treatment of an SI joint, said device comprising:
- an introducer needle including a distal end, said distal end having a curved shape;
a stimulation lead placed in said introducer needle and having an elongate, tubular configuration;
a plurality of electrodes positioned on said stimulation lead, said electrodes communicating with a source of electrical energy for providing ablative heat or electrical stimulation of tissue adjacent said electrodes.
0 Assignments
0 Petitions
Accused Products
Abstract
A combined electrical and chemical stimulation lead is especially adapted for providing treatment to the spine and nervous system. The stimulation lead includes electrodes that may be selectively positioned along various portions of the stimulation lead in order to precisely direct electrical energy to ablate or electrically stimulate the target tissue. Embodiments of the stimulation lead include single or multiple lead elements. The multiple lead element embodiments can be selectively deployed to cover a targeted area. The lead may also includes central infusion passageway(s) or lumen(s) that communicates with various infusion ports spaced at selected locations along the lead to thereby direct the infusion of nutrients/chemicals to the target tissue. One embodiment utilizes a dissolvable matrix for infusion as opposed to remote delivery through an infusion pump.
99 Citations
39 Claims
-
1. An electrical stimulation device especially adapted for treatment of an SI joint, said device comprising:
-
an introducer needle including a distal end, said distal end having a curved shape;
a stimulation lead placed in said introducer needle and having an elongate, tubular configuration;
a plurality of electrodes positioned on said stimulation lead, said electrodes communicating with a source of electrical energy for providing ablative heat or electrical stimulation of tissue adjacent said electrodes. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method of managing SI joint pain in a sacrum of a patient, said method comprising the steps of:
-
providing a stimulation lead having a plurality of electrodes, said electrodes being selectively spaced along a length of said stimulation lead;
providing an introducer needle having a curved distal end;
inserting the introducer needle along a path of insertion into a patient and placing the introducer needle in a position medial to an inferior aspect of the SI joint and directed towards an inferior lateral edge of the sacrum;
advancing the introducer needle along a curve of the sacrum in close proximity to a periosteum, lateral to a sacral foramen and medial to the SI joint until reaching a superior aspect of the sacrum;
inserting the stimulation lead in the introducer needle;
placing pressure on the stimulation lead to maintain the lead in a first position;
withdrawing the introducer needle along the path of insertion and along a selected length of the stimulation lead to expose a desired number of electrodes necessary to denervate targeted tissue;
activating said electrodes in order to denervate tissue surrounding the stimulation lead;
withdrawing the stimulation lead along the path of insertion to a second position within the introducer needle;
placing pressure on the stimulation lead to maintain the lead in the second position;
further withdrawing the introducer needle along the path of insertion thereby exposing a desired number of electrodes on the stimulation lead; and
further activating said electrodes in order to denervate tissue surrounding the stimulation lead. - View Dependent Claims (7)
-
-
8. An electrical stimulation device comprising:
-
an introducer needle including an open distal end;
a stimulation lead placed in said introducer needle and having an elongate, tubular configuration, said stimulation lead being curved along substantially a length thereof, said stimulation lead having a distal end with a bend incorporated thereon to assist in steering said stimulation lead; and
a plurality of electrodes positioned on said stimulation lead, said electrodes communicating with a source of electrical energy for providing ablative heat or electrical stimulation of tissue adjacent said electrodes.
-
-
9. An electrical stimulation device comprising:
-
an introducer needle including an open distal end;
a flexible stimulation lead placed in said introducer needle and having an elongate, straight, and tubular configuration, said lead having a central lumen extending therethrough;
a plurality of electrodes positioned on said stimulation lead, said electrodes communicating with a source of electrical energy for providing electrical stimulation of tissue adjacent said electrodes; and
a stylet placed through said central lumen of said stimulation lead, said stylet being shaped to impart a desired shape onto said stimulation lead for steering said stimulation lead.
-
-
10. An electrical stimulation device comprising:
-
an introducer needle including an open distal end;
a stimulation lead having a base forming a proximal end of said lead, said lead further having at least a pair of stimulation elements connected to said base and extending distally from said base, said lead being selectively placed between a stored position within said introducer needle and a deployed position wherein the base has at least a portion thereof remaining in said introducer needle and said stimulation elements extend distally beyond said introducer needle; and
at least one electrode integral with each stimulation element, said electrodes communicating with a source of electrical energy for providing ablative heat or electrical stimulation of tissue adjacent said electrodes. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. An electrical stimulation device comprising:
-
an introducer needle including an open distal end;
a sheath placed in said introducer needle;
a stimulation lead having a base forming a proximal end of said lead, said lead further having at least a pair of stimulation elements connected to said base and extending distally from said base, said lead being selectively placed between a stored position within said sheath and a deployed position wherein the base has at least a portion thereof remaining in said sheath and said stimulation elements extend distally beyond said sheath and said introducer needle; and
at least one electrode integral with each stimulation element, said electrodes communicating with a source of electrical energy for providing ablative heat or electrical stimulation of tissue adjacent said electrodes.
-
-
29. An electrical stimulation device comprising:
-
a sheath having a central passageway and an end cap;
a stylet placed through said central passageway and through a slot formed in said distal end cap, said stylet extending beyond a distal end of said sheath;
a stimulation lead having a proximal end and a distal end, said proximal end of said lead connected to said end cap, and said distal end of said lead connected to said stylet, said lead having at least a pair of stimulation elements, said lead being selectively placed between a non-deployed position wherein the stimulation elements are collapsed against one another, and a deployed position wherein the stimulation elements are spread from one another by sliding said sheath in a distal direction along said stylet as said stylet is held stationary; and
at least one electrode integral with each stimulation element, said electrodes communicating with a source of electrical energy for providing ablative heat or electrical stimulation of tissue adjacent said electrodes.
-
-
30. A method of deploying an electrical stimulation device especially adapted for treatment of targeted tissue wherein deploying the stimulation lead optimizes ablative heat or orientation of an electric field with respect to the targeted tissue, said method comprising the steps of:
-
providing an electrical stimulation device comprising a stimulation lead having a base forming a proximal end of said lead, said lead further having at least a pair of stimulation elements connected to said base and extending distally from said base;
placing said lead in a stored position within at least one of a sheath and an introducer needle;
exposing said stimulation elements; and
deploying said stimulation elements by displacement of said stimulation elements in a configuration different from a configuration of said stimulation elements within said sheath or introducer needle. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
-
-
39. An electrical stimulation device comprising:
-
a stimulation lead having a base forming a proximal end of said lead, said lead further having at least one stimulation element connected to said base and extending distally from said base, said lead being selectively placed between a stored position and a deployed position, said stimulation lead being made of a flexible and elastomeric material; and
at least one electrode integral said at least one stimulation element, said electrode communicating with a source of electrical energy for providing ablative heat or electrical stimulation of tissue adjacent said at least one electrode.
-
Specification