Ultrasonic ablation device and methods for lead extraction
US6241692A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1998 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Oct 6, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00084
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved lead extraction system using an ultrasonic transducer with a sharp cutting edge that is useful for the extraction and the removal of unwanted lead by a minimal invasive procedure is described. A lead extraction system suitable for ultrasonic ablation of scar tissues surrounding the implanted lead is comprised of an outer catheter sheath and an inner catheter shaft having a distal end, a proximal end and at least one lumen extending therebetween, wherein an optional locking stylet is provided. In one embodiment, the lead extraction system has a fluid infusion and irrigation means at its distal tip section and an ultrasonic transducer for loosening the target scar tissue by applying ultrasonic energy and cooled fluid to the said transducer and its contacted tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.