KOROTEEV, Alexey Vasilievich;КОРОТЕЕВ, Алексей Васильевич;BANIN, Evgeny Petrovich;БАНИН, Евгений Петрович;BARAKOV, Vladimir Nikolaevich;БАРАКОВ, Владимир Николаевич
发明人:
KOROTEEV, Alexey Vasilievich,КОРОТЕЕВ, Алексей Васильевич,BANIN, Evgeny Petrovich,БАНИН, Евгений Петрович,BARAKOV, Vladimir Nikolaevich,БАРАКОВ, Владимир Николаевич
申请号：
RURU2017/000840
公开号：
WO2018/088939A1
申请日:
2017.11.09
申请国别(地区):
RU
年份:
2018
代理人:
摘要：
The group of inventions relates to medical technology, and more particularly to variants of a device for pumping blood having a contactless magnetic coupling. In a first variant, the device comprises a multistage pump portion. The pump portion comprises a housing and a connecting shaft. Two axial stages containing impellers with curved blades, and a stator assembly are disposed on the connecting shaft. The device comprises a drive assembly with a sealed housing, a motor, and a drive shaft. The drive assembly comprises a magnetic coupling consisting of an outer driving half-coupling on the drive shaft of the drive assembly and an inner driven half-coupling on the end surface of the base of the impeller of the second stage. The drive assembly transmits torque to the connecting shaft of the pump portion from the motor. In a second variant, the drive assembly is situated outside the patient's body and comprises a flexible transmitting shaft situated inside the patient's body. Terminal magnetic half-couplings are rigidly fastened to the ends of the flexible shaft. The first half-coupling contacts with the inner driven half-coupling of the pump portion. The second half-coupling contacts with the outer driving half-coupling of the drive assembly. The technical result is a reduction in blood trauma, a reduction in the rate of rotation of the impellers, and a reduction in the overall dimensions of the device.Ce groupe d'invention se rapporte aux techniques médicales et notamment à des variantes de dispositif pour le pompage du sang par le biais d'un couplage magnétique sans contact. Dans une première variante, le dispositif comprend une partie de pompage à étages multiples. La partie de pompage comprend un corps avec un arbre de connexion. Sur l'arbre de connexion se trouvent deux étages axiaux comprenant des roues de travail avec des pales curvilignes et un appareil de type stator. Le dispositif comprend une unité d'entraînement avec un corps hermétique, un moteur et un arb
