Invention Grant
- Patent Title: Ablation needle with a semipermeable ring
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Application No.: US16493580Application Date: 2017-03-16
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Publication No.: US11291497B2Publication Date: 2022-04-05
- Inventor: Brandon Shuman , Zoie Engman
- Applicant: SPIRATION, INC.
- Applicant Address: US WA Redmond
- Assignee: SPIRATION, INC.
- Current Assignee: SPIRATION, INC.
- Current Assignee Address: US WA Redmond
- Agency: Clements Bernard Baratta Walker
- Agent Michael S. Smith
- International Application: PCT/US2017/022688 WO 20170316
- International Announcement: WO2018/169539 WO 20180920
- Main IPC: A61B18/14
- IPC: A61B18/14 ; A61B18/00 ; A61B18/12

Abstract:
An ablation needle apparatus (10) for delivering ablation energy (20) to a subject (40) comprising a hypotube with a proximal and distal end and having a hollow lumen, including a puncture member and a first electrode disposed at the distal end of the hypotube; a second electrode disposed within the hollow lumen; and a first ring member disposed about the second electrode and slidably holding the second electrode apart from the first electrode; wherein the first ring member comprises a semipermeable structure that allows for the passage of a gas and resists the passage of a liquid from the distal end to the proximal end of the hypotube.
Public/Granted literature
- US20200030023A1 ABLATION NEEDLE WITH A SEMIPERMEABLE RING Public/Granted day:2020-01-30
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