Intraaortic balloon insertion
US5090957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Oct 9, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/274
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A mechanism stretches and slightly twists an intraaortic balloon to a stretched and wrapped state prior to insertion or removal. One embodiment includes a member which extends through a catheter from the handle to the balloon, and which advances to extend the balloon while slightly twisting it. A spiral drive screw assembly in the handle defines a precise ratio of balloon extension to twist, and also defines fixed total amounts of twist and extension delivered by the member. The mechanism permits the balloon to be fully untwisted once it is inserted and to be recompacted, following use, for removal from the patient. The device is of particular utility for a large diameter or non-cylindrical balloon, and for inserting a balloon along an arterial path having a narrow passage or sharp curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.