Method for accessing the left atrium of the heart by locating the fossa ovalis
US6650923B1 · kind B1 · utility
417Cited by
30References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2000 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Apr 13, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00392
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is an access catheter for identifying and providing access through a tissue structure such as the fossa ovalis on the intraatrial septum. The access catheter comprises an elongate flexible tubular body having a proximal and a distal end, and a retractable piercing structure such as a needle carried by the distal end. A detector such as a red, green, and blue light detector is associated with the access catheter, such that placement of the distal end of the catheter against the fossa ovalis can be detected. The piercing structure is thereafter advanceable to provide access to the left atrium through the fossa ovalis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.