Other

Nihon Kohden Corporation

Fuji Systems Corporation

Yasuhiro Fukui

Osamu Miyashita

Takanori Sakamaki

Akio Funakubo

Hiroshi Kato

Yoshihiro Chikamori

Katsumi Takahashi

Hiroshi Sasagawa

Masanori Katayama

Koshiro Sato

Hikaru Nakanishi

Hajime Ysuda

Kazuyoshi Fukunaga

Kazuyuki Mitsui

A low cost, highly reliable linear oscillatory actuator comprising a yoke formed of magnetic material; an excitation coil wound on the yoke; and two permanent ring magnets arranged around the yoke and integrably set face-to-face on a common magnetic pole along the axial direction.

Linear oscillatory actuator

The vital signs detected by vital sign detecting means and the data detected by medical apparatus operation detecting means corresponding to each vital sign are sent to judging means . The judging means judges the correlation between the vital signs and the medical apparatus operation state, and further judges whether a variation in vital signs detected by the vital sign detecting means is within a range of variation estimated from the medical apparatus operation detected by the medical apparatus operation detecting means . And indicating means indicates an alarm or a message on the basis of a judgement result of whether or not the variation in vital signs is within the estimated range of variation.

Vital sign monitor

Disclosed is a small-sized gas exchange apparatus of high performance having an increased gas exchange rate and a reduced priming volume, comprising a hollow fiber module M.sub.1 formed by bundling a plurality of silicone membrane hollow fibers 1 wound in the form of a twilled pattern, a housing H.sub.1 for enclosing the hollow fiber module, an internal perfusion passage and an external perfusion passage formed within the housing H.sub.1, a first inlet A and a first outlet B formed on the housing for gas or liquid for communication with the internal perfusion passage, and a second inlet C and a second outlet D formed on the housing for gas or liquid for communication with the external perfusion passage.

Gas exchange apparatus

A medical alarming system for delivering an alarm in response to any abnormal change arising during the monitoring of a patient's physiological signals, and which causes less stress in the patient from less disturbance to his or her sleep. The system a) evaluates whether a change in the output from a physiological sensor is normal or not, thereby determining the occurrence of abnormal change; b) detects the image of the patient's bedside; c) evaluates whether the current image of the bedside agrees with a predetermined criteria; d) determines the appropriate type of alarm to be actuated; and e) delivers the determined alarm.

Medical alarming system

An integrated heart-lung machine, which includes a blood pump having a casing of a cup-like shape interiorly defining a pump chamber at an intermediate portion thereof for pumping in and out blood from a blood inlet to a guide flange formed at opposite ends of the casing; a rotor having a rotary member securely fixed to the fore end thereof within the pump chamber and journalled in the guide flange; an artificial lung of a doughnut-like or cylindrical shape connected contiguously to a blood flow passage in the guide flange and concentrically with the rotor; a stator detachably fitted in an intermediate portion between the rotor and the artificial lung; and a pedestal base located at one side of the artificial lung and provided with a blood outlet in communication with the artificial lung. Accordingly, influent blood to the pump chamber is sent into the artificial lung through the blood passage by the pumping action of the rotor, and is refreshed by contact with air or oxygen in the lung, which is maintained in a heated state by the stator, and returned to the patient's body through the blood outlet. This arrangement permits minimizing of the length of the blood circulating passages to and through the machine and permits shortening and minimizing of the blood passages interconnecting the blood pump, artificial lung and blood filter, while preventing blood contamination and leaks as well as blood cell destruction. Easy installation and handling is also permitted in a sanitary region on a bed or on an operating table.

Integrated heart-lung machine

An electrode for use primarily in electrocardiography is described. This electrode is comprised of porous polytetrafluoroethylene and an electrically conductive powder so as to be moisture vapor permeable. A preferred embodiment uses fibrillized porous polytetrafluoroethylene. It may have an adhesive on one surface for easy attachment to a patient.

Electrode for use with a living body

The present invention provides a pump by vessel oscillation including a vessel having an inlet for liquid and an outlet opening in a specific tangential direction of an outer peripheral portion thereof. The vessel is oscillated in a specific direction to outflow the liquid through the outlet opening. Accordingly, the liquid in the interior of the vessel undergoes a simple centrifugal motion and when the pump is used for a blood circulation device such as an artificial heart or assisted circulation device, the blood is completely shut off from outside and isolated from entry of various germs, air, foreign matter, etc. The pump is simple is construction and excellent in reliability and durability.

Oscillating vessel pump

The present invention provides a pump by vessel oscillation including a vessel having an inlet for liquid and an outlet opening in a specific tangential direction of an outer peripheral portion thereof. The vessel is oscillated in a specific direction to outflow the liquid through the outlet opening. Accordingly, the liquid in the interior of the vessel undergoes a simple centrifugal motion and when the pump is used for a blood circulation device such as an artificial heart or assisted circulation device, the blood is completely shut off from outside and isolated from entry of various germs, air, foreign matter, etc. The pump is simple in construction and excellent in reliability and durability.

Growing community of inventors

Tokyo, Japan

Yasuhiro Fukui