Shimadzu Corporation

National Institute of Radiological Sciences

National Institutes for Quantum and Radiological Science and Technology

National Center for Geriatrics and Gerontology

Shumadzu Corporation

Yuichi Kimura

Takahiro Nishimoto

Keishi Kitamura

Nobuya Hashizume

Iwao Kanno

Chie Seki

Tomoaki Tsuda

Takashi Yamada

Hiroshi Toyama

A suction drain device of a disclosed liquid collecting apparatus actively pushes and pulls blood. This achieves liquid collection at high speed even under decreased pressure depending on a physiological state of an animal. Moreover, the liquid collecting apparatus includes a first flow path and a second flow path having a given length. Accordingly, the flow path with a given length set in advance and thus a known volume allows collection of a given amount volume of blood without measuring a length and an amount of blood using a volume measuring device. Accordingly, no need of the measuring device allows reduction in size of the liquid collecting apparatus. Consequently, the liquid collecting apparatus can be installed adjacent to the animal to achieve reduction in dead volume. Moreover, blood is flown to a fourth flow path branched with a connecting terminal, and is also flown to the second flow path branched with a connecting terminal. The blood flown in the second flow path is collected at the highest priority. This obtains collection of fresh blood from a collecting source as a blood supply source.

Liquid collecting apparatus and liquid collecting method

A boundary calculating unit is provided for determining boundaries between separated plasma and blood cell or air and plasma whose image is picked up by an image pickup unit. With such boundary calculating unit provided, the boundaries between the separated plasma and blood cell or air and plasma can be determined, and areas of the separated air, plasma, and blood cell can be determined accurately. Particularly, a straight line drawing unit is provided for drawing, on the image picked up, a plurality of straight lines parallel to grooves in a disk which performs plasma separation. The boundary calculating unit can easily determine the boundaries by determining the boundaries based on a profile of the plurality of straight lines drawn by the straight line drawing unit.

Measuring system capable of separating liquid and determining boundary of separated liquid

A blood collecting apparatus includes a cleaning solution piping. The cleaning solution piping feeds into a flow path a heparin solution which is a liquid other than blood to be measured, in order to return the blood present in the flow path to a catheter disposed upstream of a blood inlet of the flow path. Thus, the blood having flowed into the flow path in an amount more than is necessary for blood collection, which corresponds to a portion returned to the upstream catheter of the blood to be measured present in the flow path, can be used in a next blood collection. As a result, the amount of collected blood can be reduced. The liquid to be measured is separated apart by means of a gas, and the flow path is cleaned in a way to leave no impurities in the flow path, thereby preventing impurities from mixing into the liquid to be measured.

Liquid collecting system and a method therefor

A blood collecting apparatus includes a main flow path and a pressure generator. The pressure generator is provided in an intermediate position of the main flow path to insert a gas as separators at designated predetermined intervals, thereby to take out blood to be measured, as separated in a time series. The blood can be taken out in minute volumes by inserting the separators consisting of the gas while feeding the blood continuously into the main flow path in this way. And consumption of the blood can be held down, and the amount of collected blood can be minimized. Since the operation to insert the separators is excellent in speed, repeated collection in a short time, i.e. frequency of blood collection, can be secured.

Measuring apparatus, and liquid collecting and measuring system having the same

Growing community of inventors

Chiba, Japan

Yuichi Kimura