A Permanent Implantable Pulsatile Impeller Heart with a Specially Devised Needle Bearing
- VernacularTitle:永久性可植入式搏动流叶轮型人工心脏的探索与研究
- Author:
Kunxi QIAN
1
;
Pei ZENG
;
Weimin RU
;
Haiyu YUAN
;
Zhigang FENG
;
Lan LI
Author Information
1. 江苏理工大学
- From:
Journal of Biomedical Engineering
2001;18(1):83-84
- CountryChina
- Language:Chinese
-
Abstract:
The author's implantable pulsatile impeller pump can assist the circulation of the calves for several months. The termination of the experiments was related to wear of the mechanical bearing, which resulted in vibration of the rotor and pump failure. It seemedas if the experiments could have lasted inde finitelyif the bearing had not failed. To solve the problem of bearing wear, a specially devised rolling bearing was investigated and applied to the impellerp ump. Its service life is more than 10 years due to the wear-proof roller made of ultra-high-molecular weight polythene. This newly devised impeller heart promises to have long-term and permanent applications. Compared with the magnetic bearing, the rolling bearing has the advantages of simpler construction and control, no consumption of energy, and better reliability.
