Apparatus and method for positive closure of an internal tissue membrane opening
US5810850A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Sep 23, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2905
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a device having two components: a needle advancing apparatus slidable longitudinally along a catheter to advance needles into a tissue membrane, such as a blood vessel wall, around an opening in the membrane; and, a suture retrieval assembly insertable through the catheter beyond a distal side of the tissue membrane. The needle advancing apparatus advances suture through the tissue wall. The suture retrieval assembly grabs the suture on the distal side of the tissue membrane for extraction thereof through the opening in the tissue membrane. A method for suturing a membrane beneath the patient's skin is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.