Invention Grant
- Patent Title: Method of ablating tissue
- Patent Title (中): 消融组织的方法
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Application No.: US12189398Application Date: 2008-08-11
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Publication No.: US07794460B2Publication Date: 2010-09-14
- Inventor: Peter M. J. Mulier , Michael F. Hoey
- Applicant: Peter M. J. Mulier , Michael F. Hoey
- Applicant Address: US MN Minneapolis
- Assignee: Medtronic, Inc.
- Current Assignee: Medtronic, Inc.
- Current Assignee Address: US MN Minneapolis
- Agent Mike Jaro; Jeffrey J. Hohenshell
- Main IPC: A61B18/14
- IPC: A61B18/14

Abstract:
An electrocautery device is disclosed. In accordance with one aspect of the invention, the electrocautery electrode/tip is provided with a hollow, conductive tube terminating at its distal end in a ball point type tip. Fluid, preferably conductive fluid, is applied to the proximal end of the hollow electrode/tip, and expelled from the distal end thereof during electrocautery. The ball point distal tip allows the distal tip to be directly applied to the tissue and “rolled” or slid along the tissue. This allows the distal tip to be moved across the tissue without dragging or snagging on the tissue. In addition, the conductive fluid expelled from the distal tip further lubricates the distal tip as it moves across the tissue. If conductive fluid is used, the conductive fluid emanating from the electrode/tip conducts the RF electrocautery energy away from the distal tip so that it is primarily the fluid, rather than the distal tip that actually accomplishes the cauterizing of tissue. That is, the fluid serves as a “virtual” electrocautery electrode. Since it is the fluid, rather than the distal tip that cauterizes, coagulates and ablates, no burns or perforations are made to the tissue, reducing the amount of debris at the site. Also, the flow of fluid through the electrode/tip tends to keep the distal tip clean and cool.
Public/Granted literature
- US20080300593A1 Method of Ablating Tissue Public/Granted day:2008-12-04
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