Other

Jms Co., Ltd.

Kitakyushu Institute of Biophysics Co., Ltd.

Hiromu Miura

Katsuya Yamashita

Seiji Kojima

Katumi Tominaga

Shigeo Hayashi

Katsunori Masaoka

Kunihiko Yamanaka

Sung-Teh Kim

Masahiro Taoka

Takaaki Matsuo

Yoshihiko Nakanishi

The present invention provides a dialysis coupler assembly comprising a pair of rubber-like elastic tubular couplers, and a pair of joint members for joining the couplers together. Each of the couplers includes an inner channelallowing a connector associated with a medical device to be fitted therein, and a smooth surfaceperpendicular to the longitudinal axis of the coupler. The couplers are adapted to be joined together through the joint members in such manner that the smooth surfaces are in liquid-tight contact with one another. Each of the joint members is adapted to be attached slidably and rotatably onto corresponding one of the couplers, the joint members having first and second engagement portions, respectively. The first and second engagement portions are disposed opposed to one another and adapted to cooperatively engage the joint members with one another so as to allow the smooth surfaces to be brought into liquid-tight contact with one another.

Dialysis coupler assembly with joint members and hemodialysis system using same

A liquid infusion apparatus for fixing an outer cylinder of a syringe and a driver for pushing a plunger in a predetermined direction so as to exhaust liquid in the syringe, an incremental linear encoder arranged along the feeding axis of said driver for pushing the plunger, a detector of said incremental linear encoder mounted on a slider portion of the driver for pushing the plunger so as to generate a signal indicating a moving quantity of the plunger, and a sensor provided in the vicinity of a liquid exhaust port of the outer cylinder for setting along the feeding axis a remaining liquid quantity small section so as to generate a signal about a position of the plunger at the remaining liquid quantity small section.

Liquid infusion apparatus

The automated solution injection-discharge system is used as an APDS system to supply and discharge a dialysate and a patient's drain. And an automated solution injection-discharge system provides free of contamination and operation mistakes, and can accurately control the injected dialysate volume and the discharged dwell solution volume even when a patient does not maintain a fixed posture while replacing the solution.

Automated solution injection-discharge system and automated peritoneal dialysis system

Automated solution injection-discharge system and automated peritoneal dialysis system (APDS)

In a liquid infusion apparatus, an incremental linear encoder is arranged along the feeding shaft direction of the liquid infusion apparatus to directly monitor the movement and position of a carriage part which applies an action to a plunger. A detecting sensor is provided at a starting point of a remaining liquid quantity small region to recognize the absolute position at said region by using feed-back pulses from said encoder. A pressing device for pressing a flange of the plunger to a plunger receiving portion of a slider by holding arms is provided. A pressure sensor is arranged between said plunger receiving portion and the slider to detect a negative pressure applied to the plunger in such a manner that the other operation states of pressure are detected based on a detected value of pressure at which the flange is pressed to the plunger receiving portion. The holding arms which are able to open are moved in the moving direction of the slider to press for holding the flange of the plunger to the plunger holding portion of the slider. The holding arm for press holding the flange of the plunger with the slider is supported rotatably freely by a shaft and urged to rotate by a spring in the clockwise direction. A projection which is engaged with a small projection provided an end of the holding arms is provided on a lever, so that the holding arm can be rotated in the counter-clockwise direction by said projection. A half-nut releasing device interlocking with a retracting lever provided on the slider for disengaging the half-nut from a feed screw is composed of means to urge the half-nut by a release cam having a step portion and of means to press the flange of the plunger against the slider by the holding arm for holding the flange of the plunger. A one-way clutch for transmitting a driving force in the syringe pushing direction is arranged between the output shaft of a prime mover and the feed screw.

Liquid transportation apparatus

Growing community of inventors

Hiroshima, Japan

Hiromu Miura