Controlled depth injection device and method
US6613017B1 · kind B1 · utility
40Cited by
66References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2000 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Sep 9, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter adapted to deliver therapeutic or diagnostic agents to a target tissue of a human body is disclosed. A catheter in accordance with the present invention comprises a first elongate shaft having a proximal end, a distal end, and a lumen extending therethrough, a second elongate shaft disposed within the lumen of the first elongate shaft, the first elongate shaft including a first helical member comprising a plurality of turns, the second elongate shaft including a second helical member comprising a plurality of turns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.