Tortuous path injection device
US7044934B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2003 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jan 7, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter system is provided. Catheters in this system may include a first elongated shaft and a housing surrounding it wherein the distal end of the housing has a distal contact area shaped in the form of a dome and wherein the first elongated shaft maybe moveable through the distal contact area. The housing may also include internal threads within the distal contact area and may be made from at least two materials with one material being different from the second, the second material being a polymer in some instances. The elongated shaft may also be in the form of a helix and may have a piercing tip. This helix may expand as it is rotated past turns located within the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.