Integrated catheter for diverse in situ tissue therapy
US5522815A · kind A · utility
Inventors
Key dates
| Filing date | Aug 9, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Aug 9, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An integrated catheter assembly for enabling diverse in situ therapies includes a catheter with an irrigation fluid lumen, a distal tip portion that acts as a hemostat and a needle for injection therapy that extends through the catheter lumen and a lumen in the distal tip portion. A needle hub structure carries the catheter and provides a sealing entrance for a needle that can be displaced between extended and retracted positions. The needle and electrodes are electrically isolated. The apparatus provides a physician the options of irrigating tissue, cauterizing tissue or injecting tissue without the need for removing the apparatus from the working channel of an endoscope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.