CA2271833A1 - Bearing and seal-free blood pump - Google Patents
Bearing and seal-free blood pump Download PDFInfo
- Publication number
- CA2271833A1 CA2271833A1 CA002271833A CA2271833A CA2271833A1 CA 2271833 A1 CA2271833 A1 CA 2271833A1 CA 002271833 A CA002271833 A CA 002271833A CA 2271833 A CA2271833 A CA 2271833A CA 2271833 A1 CA2271833 A1 CA 2271833A1
- Authority
- CA
- Canada
- Prior art keywords
- rotor
- relative density
- pumping chamber
- inlet ports
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- External Artificial Organs (AREA)
Abstract
A pump (10) for transferring fragile and aggressive liquids such as human blood and comprising a pumping chamber (12) along with a pair of fluid inlet ports (16, 17) arranged in oppositely disposed relationship on the chamber, and one or more outlet ports (18, 19) arranged transversely and medially of the inlet ports. A rotor (20) is positioned within the pumping chamber having a dual-conical configuration converging toward opposed polar end regions (21, 22) and with an axis of rotation extending between the polar regions. The rotor includes magnets (24) which are arranged at radially spaced locations and with a magnetic drive positioned to deliver rotational driving energy to the rotor. The sole support for the rotor (20) are the hydrodynamic forces acting upon the rotor during its operation, with the rotor body having a relative density of between 10 % and 90 % of the relative density of the fluid being pumped.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1997/006205 WO1998046879A1 (en) | 1995-06-01 | 1997-04-14 | Bearing and seal-free blood pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2271833A1 true CA2271833A1 (en) | 1998-10-22 |
| CA2271833C CA2271833C (en) | 2003-12-02 |
Family
ID=29709395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002271833A Expired - Fee Related CA2271833C (en) | 1997-04-14 | 1997-04-14 | Bearing and seal-free blood pump |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | ATE292241T1 (en) |
| CA (1) | CA2271833C (en) |
| DE (1) | DE69732924D1 (en) |
| HK (1) | HK1031413A1 (en) |
-
1997
- 1997-04-14 CA CA002271833A patent/CA2271833C/en not_active Expired - Fee Related
- 1997-04-14 DE DE69732924T patent/DE69732924D1/en not_active Expired - Fee Related
- 1997-04-14 AT AT97921190T patent/ATE292241T1/en not_active IP Right Cessation
-
2000
- 2000-12-28 HK HK00108532A patent/HK1031413A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE69732924D1 (en) | 2005-05-04 |
| CA2271833C (en) | 2003-12-02 |
| HK1031413A1 (en) | 2001-06-15 |
| ATE292241T1 (en) | 2005-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130415 |