Nipro Corporation

Shibuya Kogyo Co., Ltd.

Nissho Corporation

Other

Mitsutaka Ueda

Yoshihiko Sano

Taku Nikaido

Hidenori Takahashi

Ryoichi Akai

Inobu Fujikawa

Toru Shinzato

Hidetoshi Saio

Toshiharu Sawada

Makoto Mitsuhashi

Masamiki Miwa

Tateki Takakuwa

Tomoyuki Matsumoto

Shogo Okada

Hiroomi Nakano

Hironori Numoto

Kazuo Era

Ryuichiro Mita

A blood purification apparatus that includes a blood purifier, a vascular access flow path, a cleaning solution flow path, and a drainage flow path. The blood purifier has an inner portion divided by a semi-permeable membrane into a first portion and a second portion. The vascular access flow path is connected to the blood purifier and is in communication with the first portion. The cleaning solution flow path is connected to the blood purifier and is in communication with the first portion. The drainage flow path is connected to the blood purifier and is in communication with the second portion. The cleaning solution flow path is provided with a blood pump capable of bidirectionally feeding a fluid. An open-close valve is provided in each of the vascular access flow path and the drainage flow path.

Blood purification apparatus

Disclosed herein is a blood pressure measuring device including: a pressure measuring toola fastening memberconfigured to fasten the pressure measuring toolin rest position onto a skin region covering an anastomotic region of a shunt blood vesseland a control circuitconfigured to receive an input signal from the pressure measuring tooland to process the input signal to calculate a pressure inside the anastomotic region of the shunt blood vessel

Blood pressure measuring device

In a blood purification device containing a blood purifier, a blood circuit, a blood pump, and a dialysate line having a fresh dialysate supply line and a used dialysate discharge line, a pair of plunger pumps are disposed in the dialysate line. The pair of plunger pumps are synchronized so that delivery of a fresh dialysate from one plunger pump and suction of a used dialysate into the other plunger pump simultaneously occur and the stroke of at least one of the pair of plunger pumps is made variable.

Blood purification device

An infusion pump has a primary finger with an inclined surface, which is obliquely inclined to an advancing and retracting direction, and a secondary finger with an inclined surface, which is slidable relative to the inclined surface of the primary finger. When the primary finger is advanced, the secondary finger is retracted in proportion to the variation (increasing) in an entire width of an infusion tube, and when the primary finger is retracted, the secondary finger is advanced in proportion the variation (decreasing) in the entire width of the infusion tube. This configuration can suppress the occurrence of any gap between a tip surface of the secondary finger and an outer peripheral surface of the infusion tube in the advancing and retracting process of the primary finger. Consequently, this prevents the infusion tube from meandering, and suppresses the reduction in the accuracy of the rate of infusion.

Infusion pump

A connection portincludes a cylindrical outer portto which downstream piping(discharge-side piping) is connected; an inner portto which upstream piping(supply-side piping) is connected, and which is provided in the outer port; and a lid memberwhich closes the inner port as well as the outer port. The inner port is provided so as to extend through the outer port from the outside of the outer port, and a heater H is provided on a portion of the inner port projecting outside the outer port. When the lid member is in a closed state, the inner port is heated with the heater to sterilize the portion of the inner port exposed to the outside, thus enabling the connection port to be cleaned at a higher level.

Connection port and dialysis apparatus having connection port

An infusion pump includes a pump body for holding a roller clamp, and a roller movement mechanismfor moving a rollerof the roller clampand operating in coordination with manipulation of a door lock mechanism. When the door lock mechanism is in an unlocked state, an infusion tube T is blocked by the roller clamp. This configuration reliably prevents free flow even if a door is not closed completely or if the door is accidentally left unlocked. After the finish of infusion treatment, the infusion tube T is blocked by the roller clampat the moment when the door lock mechanism is unlocked before the opening of the door. This configuration avoids a trouble of removing the infusion tube T from the infusion pump while a user forgets to block the infusion tube by the roller clamp

A dialysis system which does not need to use a physiological saline in replenishing a solution or cleaning and priming the dialysis system, does not need a troublesome setting operation and can easily and accurately set a flow rate of a replenisher solution. The dialysis system includes a closed type water-removal control apparatus a dialyzer a fresh dialysate line as well as a used dialysate line a dialysate pressurizing line a dialysate pressurizing pump provided in the dialysate pressurizing line an artery side blood line a blood pump provided in the artery side blood line and a vein side blood line According to the dialysis system, by pressurizing a dialysate into a communication line of the dialysate, the dialysate is made to flow from a dialysate flow path into a blood flow path through a dialysis membrane of the dialyzer and the inside of a blood circulation path can be cleaned and primed.

Cleaning and priming method for dialysis system

A dialysis system which does not need to use a physiological saline in replenishing a solution or cleaning and priming the dialysis system, does not need a troublesome setting operation and can easily and accurately set a flow rate of a replenisher solution. The dialysis system includes a closed type water-removal control apparatus,a dialyzer,a fresh dialysate line,as well as a used dialysate line,a dialysate pressurizing line,a dialysate pressurizing pump,provided in the dialysate pressurizing line,an artery side blood line,a blood pump,provided in the artery side blood line,and a vein side blood line,According to the dialysis system, by pressurizing a dialysate into a communication line of the dialysate, the dialysate is made to flow from a dialysate flow path,into a blood flow path,through a dialysis membrane,of the dialyzer,and the inside of a blood circulation path can be cleaned and primed.

Dialysis system and cleaning and priming method thereof

A dialysis system operates to supply dialysate to a dialyzer from a feed chamber in response to a reduction in the volume of the feed chamber, and to recover used dialysate which is flowed out from the dialyzer into a recovery chamber in response to an increase in the volume of the recovery chamber. The increase in the volume of the recovery chamber is greater in magnitude than the magnitude of a reduction in the volume of the feed chamber, with a difference therebetween being effective to control the amount of ultrafiltration. At least two sets of feed chambers and recovery chambers may be provided, and a supply of the dialysate from the other feed chamber may be initiated before the supply from one of the feed chambers is completed, thus allowing the dialysate to be continuously supplied to the dialyzer.

Dialysis system

An apparatus for controlling ultrafiltration in a dialysis system for artificial kidney including a dialyzer, a blood supply line for supplying a blood to the dialyzer, a blood discharge line for discharging the treated blood from the dialyzer, a liquid supply line for supplying a dialyzing liquid to the dialyzer, and a liquid discharge line for discharging the used dialyzing liquid from the dialyzer, and a negative pressure pump provided on the liquid discharge line, which comprises:

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Osaka, Japan

Mitsutaka Ueda