Terumo Corporation

Terumo Kabushiki Kaisha

Susumu Kobayashi

Yutaka Muramoto

Hideo Ishizaka

Nobukazu Tanokura

Fumiaki Inaba

Akihiko Furuya

Yoshinori Ishii

Hideyuki Morikawa

Susumu Fujikawa

Kiyoshi Endo

Yasuaki Shimojo

Yoshikazu Sano

Kazumasa Satoh

A constant-rate discharge valve adapted so as to render a discharge rate constant includes a housing having an internal air chamber and an open hole open to the atmosphere, first and second air passageways each having one end open to the air chamber and communicating with each other via the air chamber, a control orifice provided in the second air passageway to control air flow rate, and a valve body disposed in the housing so as to partition the air chamber from the open hole. The valve body interrupts communication between the first and second air passageways when pressure in the air chamber is greater than a predetermined pressure and permits communication between the first and second air passageways when the pressure in the air chamber is less the predetermined pressure. An electronic automatic sphygmomanometer using this constant-rate discharge valve discharges air at a constant flow rate.

Constant-rate discharge valve, and electronic automatic sphygmomanometer

A liquid separator of the present invention comprises a first plate member, a second plate member forming a receiving portion between it and the first plate member for receiving a flexible liquid container including liquid separated into the upper liquid layer and the lower liquid layer, and pushing means for pushing the second plate member toward the first plate member, said pushing means automatically pushing the second plate member with gradually decreasing pressure after starting the discharge of the upper liquid layer from the flexible liquid container. Therefore, the upper liquid layer can be discharged from the flexible liquid container without disturbing the boundary between the upper and lower liquid layers in the flexible liquid container. Thus, the upper liquid layer can automatically and efficiently be taken out from the flexible liquid container without mixing with the lower liquid layer and without any complicated and troublesome manipulation. If the discharge of the upper liquid layer is automatically stopped with a sensor detecting the boundary between the upper and lower liquid layers, it is possible to decrease errors of the sensor caused by the disturbance of the boundary.

Liquid separator

A solution separating apparatus has a container holding portion, a container pressurizing portion, an interface detecting portion, and a control unit. The interface detecting portion comprises a light emitting apparatus disposed to one side and a light receiving apparatus disposed to another side with a container held by the container holding portion sandwiched therebetween. The light emitting element comprises a plurality (three or more) of light emitting elements disposed in parallel in the substantially moving direction of the interface within the container. Another solution separating apparatus embodiment has a container holding portion, a tube clamper, a container pressurizing portion, a control unit, and a weight measuring portion commonly used by two or more container holding portions. The weight measuring portion selectively measures the quantity of weight change of each container held by the container holding portions.

Solution separating apparatus

In a method and apparatus for testing a number of functions of a temperature measuring device, a temperature measuring portion is subjected to a predetermined temperature, and information outputted by the device is read optically or acoustically. The application of various temperatures and the reading of the outputted information are controlled sequentially in dependence upon the types of functions to be tested, and the read information is compared with predetermined information to determine whether each function passes or fails the test. A thermal equilibrium temperature measurement function of the device is tested by heating the temperature measuring portion to thermal equilibrium. Power is then reintroduced to the device and the initial display of the device is tested to determine if all segments of the display light. Next, the device is cooled to a predetermined temperature, reheating is started and information displayed upon elapse of a first predetermined time period is read to check the automatic measurement start function of the device. Information displayed upon elapse of a second predetermined time period is read to check a predicted equilibrium temperature measurement function. An acoustic warning alarm function is tested by subjecting the device to a high temperature.

Method and apparatus for automatically testing temperature measuring

A portable infusion pump for delivering medicine to a living body has a roller pump for infusing solutions by use of a motor, a driving circuit for driving the motor in response to a control signal, and a flow rate control for generating the control signal. The flow rate control includes a manual operating unit for manually setting a value of a speed of the motor, a speed setting unit for generating a digital signal associated with the value set by the manual operating unit, and a control signal output unit for generating the control signal associated with the digital signal delivered from the speed setting unit. Accordingly, the flow rate thus set clearly corresponds to an actual flow rate, thus facilitating the control of the liquid flow rate.

Portable pump for infusing medicine into a living body

An electronic clinical thermometer comprises a circuit for measuring and displaying the temperature of a portion being measured, a secondary battery for supplying electric power to the circuit, rectifier means connected to the secondary battery, a power receiving coil connected to the rectifier means for inducing a voltage in response to a change in an external magnetic field applied to the power receiving coil, and a hollow bar-shaped casing housing the circuit, the secondary battery, the rectifier means, and the power receiving coil. The secondary battery can be charged efficiently through the power receiving coil in response to the change in the external magnetic field. An apparatus for charging the electronic clinical thermometer comprises container means having a cylindrical cavity for accommodating a plurality of electronic clinical thermometers, a power transmitting coil disposed around the cylindrical cavity, and a.c. supply means for supplying an alternating current to the power transmitting coil, whereby the secondary battery can be charged by exciting the power receiving coil through inductive coupling between the power transmitting and receiving coils with the power transmitting coil positioned closely to the power receiving coil in the electronic clinical thermometer that is accommodated in the cylindrical cavity.

Electronic clinical thermometer

Pulsations of a peristaltic type fluid-infusion pump are prevented by providing pulsations of opposite phase to that of the pulsations occurring during fluid infusion by the peristaltic type fluid-infusion pump.

Method and apparatus for preventing pulsations

A liquid medication infusion device includes a number of elongate fingers each displaceable in a predetermined sequence by associated cams driven by drive means such as a motor. A feeding tube for liquid medication, when placed between said fingers and a cap, is squeezed by the fingers to infuse liquid medication into a human body. The fingers comprise at least three fingers arranged parallel to one another with a central finger and side fingers arranged on either side of the central finger. The central and side fingers are formed integrally with a support member and are each carried at first ends by the support member in cantilevered fashion. The side fingers are shaped for squeezing the feeding tube at corresponding substantially point locations on the tube to completely collapse the tube, and the central finger is shaped for squeezing the feeding tube over a required length between the point locations for pumping the medication in the tube. Each finger has its cantilevered end portion reduced in thickness for providing a spring action.

Medication infusion device

An apparatus for infusing liquid medication such as insulin into a living body has a memory for storing a basic pattern and meal patterns which decide the medication infusion dose in accordance with time. The basic pattern is designated under ordinary conditions, with a meal pattern being designated for a predetermined period of time when desired. With the passage of the predetermined period, the basic pattern is restored, the address of the basic pattern being designated according to the actual time. When a pattern is selected, the one actually addressed and read out of the memory is that appropriate for the time of day. The pattern information read out of the memory is applied to means for infusing the liquid medication into the living body, the dose of the medication conforming to the specific pattern.

Apparatus for infusing medication

A measuring apparatus is equipped with an input/output unit for delivering data to externally located equipment and for receiving data from the externally located equipment, or with an input unit for receiving data from the externally located unit, and is adapted to generate correlation data between data delivered by a sensing system provided within the measuring apparatus proper, and data delivered by a standard measurement system which can be disconnected from the measuring apparatus. The correlation data is generated by a data processing device located outside or located within the measuring apparatus, through the intermediary of the input/output unit or the input unit. The generated correlation data is stored, in non-volatile fashion, in a storage section located in the measuring apparatus, in such a manner that the data can be read out of the storage section in response to the data from the sensing system contained within the measuring apparatus.

Measuring apparatus, method of manufacture thereof, and method of

A change in the internal pressure of the fluid-infusion tube of a peristaltic fluid-infusion pump due to occlusion in the fluid-infusion tube is detected through a change in the diameter of the fluid-infusion tube. The occlusion is detected by detection of the change in the distance between the opposite wall portions of the tube.

Method and apparatus for detecting occlusion in fluid-infusion tube of

A centrifugal separator for fluids, e.g. blood, comprised of components or ingredients having different specific gravities, in which a container is mounted on a rotor rotatable about the vertical axis thereof and being rotatable about its horizontal axis independently of the rotor and, as the rotor is rotated, the container revolves about the vertical axis of the rotor and also rotates about its own horizontal axis simultaneously, so that a resultant centrifugal force of vertical and horizontal centrifugal forces acts on a liquid contained in a bag or bottle installed in the container. A flexible fluid communication conduit has its one end connected to the bag in the container, and it extends along the horizontal axis to a chamber defined by the rotor, where it is bent so as to then extend along the vertical axis. Thus, the conduit can guide the fluid flow without being completely twisted by the rotating rotor and the container revolving and rotating therewith.

Growing community of inventors

Fujinomiya, Japan

Susumu Kobayashi