| 摘要 |
A pulsatile flow delivery apparatus includes a pump, an elastic tube (11), an occlusive clamp (13) and a control device (14). The elastic tube (11) is connected to the pump, and at least a part of it is made of a material with a rubber hardness code of no greater than 70 DEG (JIS). The clamp (13) is placed on the outlet of the tube (11) for opening and closing its outlet, and a control device (14) is connected to the clamp (13) for controlling the timing for opening and closing of the clamp (13) to convert the continuous flow produced by the pump into a pulsatile flow. Another pulsatile flow delivery apparatus includes a horse shoe shaped raceway (30), a tube (31) of a material with a rubber hardness code of no greater than 70 DEG (JIS), a milking mechanism, an occlusive clamp (33) and a control device. The tube (31) is disposed along the raceway (30). The milking mechanism has a pivot shaft, a rotating arm (32) fixedly secured to the shaft and one milking roller (32a) rotatably mounted on one end of the rotating arm (32). The timing of opening and closing of the occlusive clamp (33) is controlled by the control device to produce a pulsatile flow. |
