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RF tissue ablation apparatus and method

A technology of tissue ablation and equipment, which is applied in the field of tissue ablation, tissue tumor and damage, equipment for minimal intervention therapy, and tissue block, and can solve the problems of tissue drying and carbonization, small ablation volume, incomplete ablation volume, etc.

Inactive Publication Date: 2009-07-29
脉管动力股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Current methods of using RF energy to treat tumors have several key drawbacks including incomplete ablation volume, small ablation volume, tissue desiccation and charring or prolonged ablation time

Method used

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  • RF tissue ablation apparatus and method
  • RF tissue ablation apparatus and method
  • RF tissue ablation apparatus and method

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Embodiment Construction

[0066] Embodiments of the present invention provide the benefits of a method and apparatus for treating tumors and lesions by utilizing conductivity enhancing solutions to deliver ablative electromagnetic energy to produce faster, larger and consistent ablation volumes than by conventional means. However, one of the potential problems when injecting fluid through a hollow tube or hollow electrode is blockage of the electrode fluid lumen when the electrode is inserted into tissue, or tissue clotting generated by electrode heating during energy delivery, or a combination of both . Further embodiments of the present invention provide solutions to the problem of tissue blockage of electrodes and infusion lumens occurring during insertion of electrodes into tissue or during delivery of ablation energy.

[0067] One embodiment of a tissue infusion ablation device 10 for treating tumors and lesions is shown in figure 1 middle. The device is configured to be positioned at a bony tis...

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PUM

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Abstract

The invention discloses a tissue ablation method and equipment. The device includes a plurality of RF ablation electrodes, and a plurality of sensor elements, each movable in tissue to be ablated from a retracted to a deployed position. A control device in the device is operatively connected to the electrodes for supplying RF power to the electrodes to produce tissue ablation proceeding from the individual electrode ablation zones to fill a combined electrode ablation volume. The control means is operatively connected to the sensor element for determining the degree of ablation in the region of the sensor element. The supply of RF power to the electrodes can thus be adjusted to control the level and extent of tissue ablation throughout the combined electrode volume. The electrodes are preferably hollow needle electrodes through which fluid can be injected into the tissue and, under the control of the control unit, the tissue ablation is modulated and optimized.

Description

technical field [0001] The present invention generally relates to a method for treating tissue, tissue fragments, tumors and lesions of tissue. More specifically, the present invention relates to an apparatus and method for minimally invasive therapeutic therapy of tumors and tissue masses. More specifically, the present invention relates to an apparatus and method for utilizing fluids to enhance energy delivery to tumors and tissue masses to produce larger, faster ablation volumes with improved clinical outcomes. Background technique [0002] Current methods of using RF energy to treat tumors have several key drawbacks, including incomplete ablation volumes, small ablation volumes, tissue desiccation and charring, or prolonged ablation times. The present invention provides a method and apparatus that solve these and other related problems. Contents of the invention [0003] The present invention provides a tissue ablation device, comprising: [0004] (a) an elongated d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/14A61B18/12
CPCA61B2018/1475A61B2018/00714A61B18/1477A61B2018/143A61B2018/00875A61B2018/00702A61B2018/0016A61B2018/00791A61B2018/1472A61B2018/00797A61B2018/00654A61B2018/00577
Inventor R·M·皮尔逊S·A·丹尼尔D·J·巴尔别日K·S·李J·梁M·热达内
Owner 脉管动力股份有限公司
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