Lead assembly with masked microdisk tip electrode and monolithic controlled release device
US6405091B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1999 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jul 20, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A passive fixation, body implantable lead assembly has a cylindrical tip electrode whose outer side surface is covered with a thin dielectric insulating layer so as to mask an active, disk-shaped electrode surface at the distal extremity of the tip electrode. The active electrode surface preferably has an area less than about 1 mm2. An MCRD, in the form of a collar, may be carried by a proximal portion of the tip electrode. Supplementing a set of main tines projecting from the distal end portion of an insulating sheath housing the lead assembly is a set of nubby auxiliary tines extending from the sheath immediately adjacent the distal extremity thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.