Extra-corporal blood pump
US5718687A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1996 |
| Grant date | Feb 17, 1998 |
| Priority date | — |
| Expiry date | Sep 5, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An extra-corporal blood pump comprises a support means equipped with a pumping means and a driving means. Said pumping means comprises an inlet head, an outlet head and a pump chamber arranged between and connecting said inlet head with said outlet head, wherein: PA1 said inlet head is stationarily arranged at said support means and comprises an inlet connector, an inlet bore having an internal diameter, and an inlet valve means; PA1 said outlet head is movably arranged to be displaced by said driving means and comprises an outlet connector, an outlet bore having an internal diameter and an outlet valve means; PA1 said pump chamber comprises a piece of a hose having a given original length and made of a rubber-elastic material and defining an interior volume of said pump chamber, wherein said piece of hose comprises an inlet end tightly connected with said inlet head, and further comprises a distantly arranged outlet end tightly connected with said outlet head; and PA1 said driving means periodically moving forward said outlet head essentially in a length direction of said hose piece thus streching the hose piece in order to increase per stroke the original hose piece length by at …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.