Toa Medical Electronics Co., Ltd.

Nobuhiro Kitagawa

Masakazu Fukuda

Rokusaburo Kimura

A compact syringe pump having a high quantitative accuracy and a high durability is provided. The syringe pump comprises a motor, a rotating cylinder, a moving element, a guide means for introducing the moving element in an axial direction of the rotating cylinder, a piston rod disposed on the moving element and a cylinder within which the piston rod moves, wherein the guide means comprises a guide pin extending through the moving element in the axial direction of the rotating cylinder and a pair of upper supporting member and lower supporting member for supporting both ends of the guide pin so that the guide pin becomes in parallel to the axial direction of the rotating cylinder, the upper supporting member rotatably supports the rotating cylinder at an upper end portion of the rotating cylinder and the lower supporting member rotatably supports the rotating cylinder at an upper surface portion of the bottom portion of the rotating cylinder, thereby preventing the rotating cylinder from swinging.

Syringe pump

A fluid transfer system employing a roller pump for squeezing an elastically deformable tube by a roller to allow fluid to be transferred from a transfer source to a transfer destination, said fluid transfer system being characterized by comprising: a short-cut passageway connecting between an inlet passageway and an outlet passageway of said tube fitted onto said roller pump; and a passageway switching means for selectively bringing fluid into fluid communication with said short-cut passageway.

Fluid transfer system and blood cell counter including the same system

A specimen stirring device has a stirring impeller on a rotating shaft enclosed in a pipe having one or more side holes in a central portion thereof and a nozzle portion at its end and by rotation of the stirring impeller can create a circulating flow of specimen liquid flowing out of the pipe through the nozzle portion, upward along the outside of the pipe and back into the pipe through the side holes and thereby efficiently stir a specimen liquid in a specimen container even if the specimen container is long and slender or has a tapered bottom and without there being a possibility of the stirring impeller and the specimen container making contact with and damaging each other. A specimen sampling apparatus including this specimen stirring device is also disclosed.

Growing community of inventors

Kobe, Japan

Nobuhiro Kitagawa