Balloon stretch mechanism
US4968300A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1988 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Oct 5, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/274
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A mechanism advances to stretch an intraaortic balloon 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 without appreciably twisting it. A spring detent assembly in the handle defines a precise amount of extension delivered by the member. The mechanism permits the balloon to be fully relaxed 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, irregular or polygonal 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.