Rotatable medical valve closure
US5489274A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1994 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/1077
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An easy operating, durable closure device for controlling the closure of a passageway in for example valves and the like used in medical applications. The device includes a cam surface arranged about the circumference of a resilient tubing member. Rotation of the cam controls the radial position of a compression member that compresses the tubing member to effect closure. Such a closure device, or a two-part rotary closure device in general, is constructed to receive an accessory component such as a syringe, the rotary connecting movement of which automatically opens the closure device. The device may be used as a torqugeable handle for a guidewire gripped in the passage. A large scale version of the device is joined to an introducer sheath, sized to pass an introducer catheter for e.g., a Green field filter, or to close upon a guidewire to prevent backflow of blood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.