Energy delivery systems and uses thereof

Patent metadata

Field	Value
Publication number	US-2016015453-A1
Application number	US-201514867986-A
Country	US
Kind code	A1
Filing date	Sep 28, 2015
Priority date	May 3, 2010
Publication date	Jan 21, 2016
Grant date	—

Abstract

The present invention relates to comprehensive systems, devices and methods for delivering energy to tissue for a wide variety of applications, including medical procedures (e.g., tissue ablation, resection, cautery, vascular thrombosis, treatment of cardiac arrhythmias and dysrhythmias, electrosurgery, tissue harvest, etc.). In certain embodiments, systems, devices, and methods are provided for delivering energy to difficult to access tissue regions (e.g. peripheral lung tissues), and/or reducing the amount of undesired heat given off during energy delivery.

First claim

1 .- 13 . (canceled)

14 . A method of treating a peripheral lung tissue region in a subject, comprising steering an energy delivery device through the subject's lung and positioning the energy delivery device at a target peripheral lung tissue region, and ablating the target peripheral lung tissue region with energy from the energy delivery device,
wherein the steering is through the subject's mouth, through the subject's trachea, and through the subject's lung.

15 . The method of claim 14 , wherein the steering comprises
advancing a hollow primary catheter having a hollow channel catheter therein through the subject's mouth, through the subject's trachea, and through the subject's lung until further advance is constrained by the diameter of the hollow primary catheter, wherein the hollow channel catheter has therein a steerable navigation catheter, advancing the hollow channel catheter having the steerable navigation catheter therein beyond the distal end of the hollow primary catheter and extending the hollow channel catheter having the steerable navigation catheter therein through the subject's lung and to the target peripheral lung tissue region, withdrawing the steerable navigation catheter from the hollow channel catheter, inserting the energy delivery device through the hollow channel catheter such that it is positioned at the target peripheral lung tissue region.

16 . The method of claim 15 ,
wherein advancing the hollow channel catheter having the steerable navigation catheter therein beyond the distal end of the hollow primary catheter and extending the hollow channel catheter having the steerable navigation catheter therein through the subject's lung comprises extending the hollow channel catheter having the steerable navigation catheter therein through one or more of primary bronchial tissue, secondary bronchial tissue, tertiary bronchial tissue, and bronchiole tissue.

17 . The method of claim 15 , wherein the steerable navigation catheter controls the advancing.

18 . The method of claim 14 , wherein the energy delivery device comprises a braided material.

19 . The method of claim 18 , wherein the energy delivery device is flexible.

20 . The method of claim 14 , wherein ablating the target peripheral lung tissue region with energy from the energy delivery device is controlled with a processor.

21 . The method of claim 14 , wherein the energy delivery device is a microwave energy delivery device.

22 . The method of claim 14 , wherein the energy delivery device is in electrical communication with an energy power supply.

23 . The method of claim 14 , wherein the energy delivery device comprises one or more coolant channels in fluid communication with a coolant source.

24 . The method of claim 14 , wherein the energy delivery device comprises an inner conductor and an outer conductor.

25 . The method of claim 24 , wherein the inner conductor is hollow.

26 . The method of claim 24 , wherein the inner conductor is in fluid communication with a coolant source.

27 . The method of claim 24 , wherein a dielectric material is positioned between the inner conductor and the outer conductor.

28 . The method of claim 24 , wherein the inner conductor and the outer conductor comprise air channels.

29 . The method of claim 14 , wherein the target peripheral lung tissue region comprises lung nodule tissue.

30 . The method of claim 14 , wherein the target peripheral lung tissue region comprises lung tumor tissue.

31 . The method of claim 14 , wherein the target peripheral lung tissue region comprises lung lesion tissue.

32 . The method of claim 14 , wherein the target peripheral lung tissue region comprises cancerous tissue.

33 . The method of claim 14 , wherein one or more stabilization and/or anchoring mechanisms are used to secure one or more of the hollow primary catheter, the hollow channel catheter, the steerable navigation catheter, and the energy delivery device at a desired tissue region.

34 . The method of claim 33 , where the desired tissue region is the target peripheral lung tissue region.

35 . The method of claim 23 , wherein the energy delivery device is configured to detect an undesired rise in temperature within the energy delivery device and automatically or manually reduce such an undesired temperature rise through flowing of coolant through the one or more coolant channels.

36 . The method of claim 14 , wherein the energy delivery device is a triaxial microwave probe.

37 . The method of claim 36 , wherein the triaxial microwave probe comprises optimized tuning capabilities to reduce reflective heat loss.

38 . The method of claim 36 , wherein the triaxial antenna comprises an inner conductor, a dielectric material, and an outer conductor, wherein the dielectric material is between the inner conductor and the outer conductor.

Assignees

• Neuwave Medical Inc

Inventors

• Van Der Weide Daniel Warren
• Lee Jr Fred T
• Brace Christopher Lee
• Schefelker Richard W
• King Laura G
• Thom Mark
• Thiel Matthew

Classifications

• A61B17/320068

  using mechanical vibrations, e.g. ultrasonic (A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745) · CPC title

• A61B2018/00875

  Resistance or impedance · CPC title

• A61B2034/2059

  Mechanical position encoders · CPC title

• A61B2018/1892

  Details of electrical isolations of the antenna · CPC title

• A61M25/0136

  Handles therefor · CPC title