Percutaneous entry system and method
US6761725B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 3, 2002 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Sep 3, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/306
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus to achieve percutaneous entry to a blood vessel includes several coacting combinations of coacting instruments, some capable of independent action, as well as enabling clear visualisation of the operative area, precise location of the operative site, capture and immobilization of the vessel, and guidance in the positioning and insertion of the puncturing needle Additionally, apparatus is provided for the placement of a sponge directly on the entry wound in the vessel to reduce bleeding. The present invention also sets forth a method for vascular puncture and more particularly for the arterial puncture procedure. The line of maximal pulsation is ascertained, and a small incision in the skin is made. A dissecting-retracting tool (100) is then employed to create a skin-to-vessel channel. The vessel is inspected through the spread fingers. A tubular access conduit (300), mounted on an obturator-carrier (400), is inserted until it rest upon the vessel. The dissector-retractor (100) is removed and the obturator (400) is withdrawn from the conduit (300) leaving the conduit (300) in place. A needle guide (312) is then passed down inside the conduit (300) to contact the vessel. A …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.