Introducer for use in inserting a medical device into a body vessel and method for same
US8308692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2008 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Apr 25, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/0653
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In at least one embodiment of the present invention, an introducer for use in inserting a medical device into a body vessel of a patient is provided. The introducer comprises a housing having a proximal opening, a distal opening and a chamber extending therebetween. A seal in diaphragm form is disposed in the chamber. The seal is formed of polymeric material having a first phase transition temperature higher than about body temperature and a second phase transition temperature that is less than the first phase transition temperature but is greater than about room temperature. The seal is in a first configuration and has an opening formed therethrough when at about room temperature for advancing the medical device through the seal. The seal self-configures to a second configuration when at a temperature of at least the second phase transition temperature for obstructing the body fluid from flowing through the opening of the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.