Occluder device and method of making
US6186149A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2000 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Mar 13, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3303
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention pertains to a circulatory system, such as a circulatory assist system for a patient. The system comprises a blood pump having tubing fluidically communicating with a person's blood vessel. The blood pump can be, for instance, a centrifugal blood pump but is not limited thereto. The system also comprises an occluder device for controlling flow of the blood pump. The occluder device is in contact with the tubing of the blood pump. The occluder device can be incorporated into an anti-kink sheath over the outlet graft tubing of the blood pump. Preferably, the system comprises control means for actuating the occluder device when the blood pump malfunctions. In this manner, potentially fatal retrograde blood due to pump failure is automatically prevented. In a preferred embodiment, the occluder device comprises a cylindrical tube and a bladder mechanism connected to the inside surface of the tube. Type bladder mechanism preferably comprises a bladder and means for inflating the bladder. The inflating means preferably comprises a bladder pump having a tube in fluidic communication with the bladder. The bladder can be of a variety of constructions in the tube. The bla…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.