Hitachi-high-technologies Corporation

Hitachi High-tech Corporation

Kenichi Hirami

Kazuhiro Nakamura

Hajime Yamazaki

Hidemi Koike

Eriko Otsu

Uneven wear causes degradation of the individual parts of a syringe pump. Specifically, a seal piece composed of a soft material is easily damaged by uneven wear. To solve this problem, an automatic analysis device has a syringe pump that feeds and aspirates a liquid into and from a dispensing unit. The syringe pump has a syringe tube that stores a liquid, a plunger that moves up and down in the syringe tube, a plunger upper pressing component that contacts the plunger, a motive force transmitting part that transmits motive force to the plunger via the plunger upper pressing component, and a plunger lower pressing component that contacts the motive force transmitting part. The plunger upper pressing component and the motive force transmitting part make point contact with each other, and the motive force transmitting part and the plunger lower pressing component make point contact with each other.

Automatic analysis device with syringe pump

An automatic analyzing apparatus capable of obtaining an analysis result of a specimen high in urgency in a shorter time is provided. When a first rackis present in a sampling lineand an analysis request for a second rack higher in the degree of urgency for analysis than the first rackis detected, a control unit unloads the first rackonto a transport linethrough a return line, allows the first rackto stand by at a rack standby positionon a transport linebetween a loading lineand the return lineunder control, and loads the second rack from the transport lineonto the sampling linethrough the loading lineand transports the second rack to the dispensing positionunder control while allowing the first rackto stand by.

Growing community of inventors

Tokyo, Japan

Kenichi Hirami