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US6622731B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Bone-treatment instrument and method

Assignee: Angiodynamics Inc
•
Filing: 2002-01-11
•
Granted: 2003-09-23
•
Expires: 2022-01-11
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Abstract

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.

Inventors

  • 👤 Steven A. Daniel
  • 👤 Daniel J. Balbierz
  • 👤 Robert D. Russell
  • 👤 Robert Pearson
  • 👤 Andres Tamayo
  • 👤 Takehito Jimbo
  • 👤 Karen Frischmeyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 10:15
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1477; A61B17/00; A61B17/00234; A61B2017/00292; A61B2017/003; A61B2018/00005; A61B2018/00011; A61B2018/00029; A61B2018/00053; A61B2018/00059; A61B2018/00071; A61B2018/00083; A61B2018/00107; A61B2018/00142; A61B2018/00636; A61B2018/00642; A61B2018/00654; A61B2018/00696; A61B2018/00755; A61B2018/00773; A61B2018/00791; A61B2018/00797; A61B2018/00875; A61B2018/1405; A61B2018/1435; A61B90/00; A61B90/39; A61B2090/3925; A61B2218/00; A61B2218/001; A61B2218/002; A61M; A61M5/00; A61M5/14; A61M5/142

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 120 words
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.
Claim 2
Independent Claim 120 words
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.
Claim 3
Dependent Claim 52 words
The method of claim 1 , for use in palliatively treating a pain-causing bone tumor, wherein said needle is positioned within the tumor, said activating step is effective to ablate tumor tissue by heating, and said polymer liquid when it thermoset or thermoplastics, is effective to stabilize movement the ablated tumor region.
Claim 4
Dependent Claim 50 words
The method of claim 2 , wherein said polymer liquid is a polymethylmethacrylate, said injecting includes injecting the liquid through an electrode needle, and said activating is effective to maintain the temperature of the polymer liquid above its glass transition temperature while the liquid is being injected through the needle.

References Cited (Backward Citations)

US6302898B1 Cited
US5814066A Cited
US6033401A Cited
US20020165528A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2006-09-22 2007-03-24 2007-09-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2010-09-22 2011-03-24 2011-09-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2014-09-22 2015-03-24 2015-09-23 $7700.00 Window Closed / Lapsed

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