COIL ELECTRODE APPARATUS FOR THERMAL THERAPY FOR TREATING BONE TISSUE
First Claim
1. An apparatus for providing RF treatment, the apparatus comprising:
- an RF applicator comprising;
an applicator housing;
an applicator cannula mounted at a distal end of the applicator housing, the applicator cannula including a tip spaced apart from a proximal end of the applicator housing;
an electrode disposed within the applicator cannula and the applicator housing, the electrode having a retracted position within the applicator cannula and a deployed position outside of the tip of the applicator cannula;
an actuator mounted at the proximal end of the applicator housing;
a mechanical assembly disposed within the applicator housing to mechanically couple the actuator and the electrode, the mechanical assembly being configured to convert a rotational movement of the actuator to a longitudinal movement of the electrode with respect to the applicator cannula; and
an electrical connection assembly configured to electrically couple the electrode to a power source.
2 Assignments
0 Petitions
Accused Products
Abstract
Various embodiments are described herein for a coil electrode, RF applicator and RF treatment apparatus, along with an associated method of operation, that have been developed for treating tumors in bone tissue, including large tumors with a single treatment session or ablating intravertebral nerves. Embodiments are also described that provide the capability to perform multifocal treatments for safe and effective treatment of multiple bone tumors or ablating intravertebral nerves. Embodiments are also described that provide a 3-tiered multi-modality treatment regimen which would sequentially include RF ablation of a bone tumor, tumor debulking and vertebroplasty or ablating intravertebral nerves as part of pain treatment.
55 Citations
28 Claims
-
1. An apparatus for providing RF treatment, the apparatus comprising:
an RF applicator comprising; an applicator housing; an applicator cannula mounted at a distal end of the applicator housing, the applicator cannula including a tip spaced apart from a proximal end of the applicator housing; an electrode disposed within the applicator cannula and the applicator housing, the electrode having a retracted position within the applicator cannula and a deployed position outside of the tip of the applicator cannula; an actuator mounted at the proximal end of the applicator housing; a mechanical assembly disposed within the applicator housing to mechanically couple the actuator and the electrode, the mechanical assembly being configured to convert a rotational movement of the actuator to a longitudinal movement of the electrode with respect to the applicator cannula; and an electrical connection assembly configured to electrically couple the electrode to a power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
14. A method for providing RF treatment to bone or an intravertebral nerve, wherein the method comprises:
-
forming a guidance hole adjacent to a target site in the bone; forming a toroidal void around the target site using a first coil having a first diameter and then retracting the first coil; deploying a coil electrode having a second diameter in the toroidal void, the second diameter being smaller than the first diameter; and applying RF energy to the coil electrode to ablate the target site. - View Dependent Claims (15, 16, 17, 18)
-
-
19. A method for providing bilateral RF treatment to bone or an intravertebral nerve, wherein the method comprises:
-
forming a first guidance hole adjacent to a first target site in a vertebrae; forming a second guidance adjacent to a second target site in the vertebra, the second target site being located laterally opposite the first target site within the vertebra; inserting and then deploying a first coil electrode at the first target site; inserting and then deploying a second coil electrode at the second target site; and applying RF energy to the first and second coil electrodes to ablate the first and second target sites. - View Dependent Claims (20, 21, 22)
-
-
23. A method for providing multifocal RF treatment to bone or an intravertebral nerve, wherein the method comprises:
-
forming a first guidance hole adjacent to a first target site in a first vertebra; forming a second guidance hole adjacent to a second target site in a second vertebra; inserting and then deploying a first coil electrode at the first target site; inserting and then deploying a second coil electrode at the second target site; and applying an excitation signal to the first and second coil electrodes. - View Dependent Claims (24, 25, 26, 27, 28)
-
Specification