Expandable catheter system for vessel wall injection and muscle and nerve fiber ablation
US9278196B2 · kind B2 · utility
71Cited by
92References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 24, 2011 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Sep 5, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vascular nerve ablation (denervation) system includes a multiplicity of expandable needles which open around a central axis to engage the wall of a blood vessel allowing the injection of a cytotoxic or neurotoxic solution for ablating conducting tissue in and near the vessel wall of a renal artery or pulmonary vein. The expandable needles are formed of self-expanding materials and include structures which limit the distance of penetration of the injection needles into the tissue of the wall of the blood vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.