Bone-treatment instrument and method
First Claim
1. A method of injecting into an internal body site in a subject, a thermoset or thermoplastic polymer material, comprisingpositioning against or adjacent the internal body site, the distal end of an instrument having a distal-end electrode needle which can be activated to produce localized heating, with said tip inserted into or against body site, activating said needle under conditions effective to raise the temperature of said site, in the region of the needle, injecting a thermoset or thermoplastic polymer liquid into the site, before, during or following said activating step, such that the needle and surrounding body site is at a temperature that allows introduction of the polymer solution through the needle and hardening at the site of injection.
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Accused Products
Abstract
Ablation devices and associated methods are provided for use in palliative treatment of a bone tumor on or in a compact bone region. The bone treatment devices include an elongate probe having a distal end. A proximal end of the probe supports placement in a location at or adjacent to the bone tumor. Electrodes are carried within the probe for deployment from the distal end into the bone tumor. The electrodes may be shapable to create, upon deployment, an array of electrodes that defines a geometric area within the bone tumor. Application of energy, for example energy from a radio frequency (RF) source, to the area of the bone tumor via the electrodes destroys at least a portion of the nerve receptors located in or adjacent to the tumor and produces a reduction in pain associated with the bone tumor. Liquid, such as a polymer in liquid form, may be injected through an electrode needle, with electrode heating being employed to allow introduction of the polymer solution through the needle and/or hardening at the site of injection.
1015 Citations
3 Claims
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1. A method of injecting into an internal body site in a subject, a thermoset or thermoplastic polymer material, comprising
positioning against or adjacent the internal body site, the distal end of an instrument having a distal-end electrode needle which can be activated to produce localized heating, with said tip inserted into or against body site, activating said needle under conditions effective to raise the temperature of said site, in the region of the needle, injecting a thermoset or thermoplastic polymer liquid into the site, before, during or following said activating step, such that the needle and surrounding body site is at a temperature that allows introduction of the polymer solution through the needle and hardening at the site of injection.
Specification