Abstract: In combination with a blood reservoir, a blood volume detecting apparatus is used to ensure safe operation of the reservoir which includes a conduit in fluid communication with a lower part of said blood reservoir, a diaphragm associated with the other end of the conduit and movable by a differential hydraulic pressure applied by the blood through the conduit, and means for detecting the swelling and contracting movement of the diaphragm.

Abstract: An ultrasonic transducer is adapted to transmit spherical ultrasonic waves which have a plurality of frequencies into an object under examination while being scanned in a direction at right angles to the direction of transmission. By repeating this operation, echo signals are obtained, on the basis of which a B-scan distribution image of the echo signals is obtained through use of a synthetic aperture method. Using the distribution image, there is determined position information relating to positions of interest in the object as indicated in the distribution image, as well as scanning positions of the ultrasonic transducer situated on extensions of straight lines connecting the positions of interest. The attenuation coefficient of the object is measured based on echo signals at the scanning positions.

Abstract: A body fluid filter device is formed by enclosing liquid-tightly and slidably with a filter device case a body fluid filter membrane, an elastic body fluid flow path regulation plate disposed on one surface of the filter membrane and provided with a plurality of protuberances distributed at fixed intervals, and a filtrate flow path forming plate disposed on the other surface of the filter membrane and then setting the filter device case in position in pressure means adapted to apply pressure freely adjustably to the case in a vertical direction.

Abstract: A blood collector includes a cylindrical body having a closed end and an open end, and a hollow body is arranged coaxially at the closed end of the cylindrical body and has a hole communicating with the interior of the cylindrical body. A columnar body is arranged within the cylindrical body to be in tight contact with an inner wall thereof, with a distal end defining a blood collection space with the closed end of the cylindrical body. Further, the columnar body has a hole which allows the blood collection space to communicate with the outside. A freeze-dried blood anticoagulant mass is placed inside the blood collection space to cover an inner surface of the closed end of the cylindrical body and to block the hole of the hollow body. A filter is arranged across the hole of the columnar body. The filter is permeable to gases and impermeable to blood at least before being brought into contact with blood in the collection space.

Abstract: An electronic clinical thermometer having a store of plural temperature prediction functions in which elapsed measurement time is a variable, each function prescribing a temperature change up to a final, stable temperature. Temperature at a specific point in time is predicted in accordance with a selected temperature prediction function based on a temperature at a specific sampling instant and elapsed measurement time up to the past sampling instant. The predicted value and a value actually measured at the specific point in time are compared to obtain a difference between them. When the difference falls outside prescribed limits, another temperature prediction function is selected, a subsequent predicted value is obtained based thereon, and the foregoing process is repeated until a difference is found which lies within the prescribed limits. When this occurs, a predicted value of the final, stable temperature corresponding to the prediction function is obtained and delivered as an output.

Abstract: A selectively permeable film directly applied to coat the surface of an electroconductive element, said electively permeable film comprising a polymer which is derived from at least one aromatic compound selected from the group of nitrogen-containing aromatic compounds or from the group of hydroxy aromatic compounds. The nitrogen-containing aromatic compounds are aniline, 2-aminobenzotrifluoride, 2-aminopyridine, 2,3-diaminopyridine, 4,4'-diaminodiphenyl ether, 4,4'-methylenedianiline, tyramine, N-(o-hydroxybenzyl)-aniline and pyrrole. The film coated on the electrode surfaces permits selective passage of ions and the electrode can be used as an ions sensor for measuring the concentration of ions in solutions.

Abstract: In a medical container comprising a flexible vessel containing a fluid, inlet means attached to the vessel for admitting another fluid into the vessel, and an outlet, a tubular member is extended through the vessel wall as the inlet means and closed at the outer end with a plugging member to shut off the tubular member channel from the exterior and provided at the inner end with a bacterial filter, the plugging member permitting access to the tubular member channel from the exterior when the other fluid is to be admitted into the vessel. A breakable closure member is further mounted on the inner end of the tubular member to shut off the filter member from the interior space of the vessel, but is breakable to permit the communication of the interior space with the tubular member when the other fluid is to be admitted.

Abstract: Hot-water extracts of the neem bark produced by treating the bark of neem with water at a temperature from 0.degree. to 40.degree. C. and subjecting the residue from said pre-extraction treatment to extraction treatment with hot water. Purification of the extract thus produced by means of alcohol precipitation or dialysis gives products of a higher purity. Moreover, treatments prior to the pre-extraction treatment with water at 0.degree.-40.degree. C. with a non-polar organic solvent having a dielectric constant of 10 or lower and a polar organic solvent having a dielectric constant from 15 to 35 yields neem extracts of a further higher purity. The hot-water extracts of the neem bark according to the present invention possess activity against mouse L-5178Y cells and transplanted sarcoma 180 tumors.

Abstract: Neem bark extracts produced by pre-treating the bark of neem with an organic solvent having a dielectric constant of 10 or lower, for example, benzene or ethyl acetate and subjecting the residue obtained by the pre-treatment to extraction with a hydrophilic organic solvent having a dielectric constant from 15 to 35, for example, methanol or ethanol and recovering the neem bark extracts from the hydrophilic organic extraction solvent.

Abstract: A package for storing therein a medical container in conjunction with a deoxidizer covered on at least one side thereof with a gas-impervious sheet and on at least one other side thereof with a gas-pervious sheet, which package is characterized by comprising a tightly sealed container adapted to hold the aforementioned deoxidizer in such a manner that the gas-pervious sheet sides of the deoxidizer rests on at least one of the inner sides thereof and provided in the inner side thereof adjoining the gas-pervious sheet side of the aforementioned deoxidizer with at least one passage for gas communicating with the atmosphere enclosed with the package.

Abstract: An intravascular catheter or cannula assembly including a catheter device having a catheter tube and a catheter hub, and a cannula device having a cannula and a cannula hub. A cannula positioning rod is securely mounted on the cannula hub through a fixing member. A stopper is securely mounted on the catheter hub to abut against the distal end of the rod, thereby regulating the projecting length of the cannula from the distal end of the catheter tube when the cannula is inserted into the catheter tube. A member having a groove is provided to prevent an axial movement of the cannula. The groove tightly and detachably receives the fixing member and the stopper thereby integrally holding the catheter device and the cannula device when they are assembled.

Abstract: A medical bag formed of a pair of sheets which exhibit a blocking tendency at high temperatures. A non-fluid layer of an at least partially crosslinked silicone resin is formed in the form of spots or islands on at least one of two opposing surfaces of said pair of sheets. The pair of sheets is sealed by heat sealing at parts of peripheries thereof where said resin layer is not formed.

Abstract: A pad assembly for use in a microorganism culture test is provided which comprises, in sterile conditions, a water-absorbing pad which is impregnated with a culture medium for culturing given microorganisms and dried, a filter member bonded to the upper surface of said water absorbing pad and having submicron pores of a size capable of substantially preventing the microorganisms from passing therethrough, and a coating of an antibiotic deactivating agent applied to the upper surface of said filter member or to the common surface between said filter member and said water-absorbing pad, as well as testing apparatus having the pad assembly mounted in a vessel. The invention eliminates the adverse effect of antibiotics in a sample to be tested which will otherwise inhibit the growth of microorganisms in the sample to adversely alter test results.

Abstract: 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.

Abstract: 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.