A machine for infusion and withdrawal of fluid from the peritoneal cavity of a person. A plurality of bags of fluid each rests atop spaced apart trays arranged in a stack and supported by a vertical secondary frame slidably mounted in a main frame. Moveable pins mounted to the main frame sequentially support the secondary frame and an adjacent tray until the entire secondary frame and stack of tra...

A microprocessor-based system (10) is tested by a testing device (32) that substitutes instructions from a substitute memory (38) for those in the main memory (28) of the system (10) under test. When the processor (12) of the system under test attempts to read a location in its memory (28), it places signals on bus address lines (22) to designate the memory location and places a data-direction sig...

By the displacement chromatographic process comprising passing a solution containing a plurality of metallic elements to be separated through a column packed with activated chelating resin, passing an eluent through the column and collecting successive portions of the resultant eluate, the metallic elements can be separated into individual metallic elements not only in a high state of purity but a...

Device for the metered dispensing of tablets having a housing and a tablet reservoir, the tablet reservoir being adjustably mounted in the housing and being placeable with a dispensing opening in the reservoir in front of a dispensing opening in the housing and the housing being designed as a sliding sleeve having a sleeve bottom in which the tablet reservoir is guided so that it can be pushed in ...

1. A medical suction device for sucking out fluids during surgical operations comprising a suction pipe to be introduced into the operation area by hand, which suction pipe consists of two pipe sections (1, 2) connected via a housing (5), one (2) of which pipe sections (1, 2) has in the housing (5) a pipe end which is preferably cut off at an angle, and further comprising a non-return valve-type i...

The invention relates to a child's sport vehicle with a chassis and a supporting part consisting of a frame and coverings made of flexible textile material, the supporting part being adjustable into a sitting position in which a back part is directed upwards and a base part is directed downwards, and into a lying position in which the base part, seat part and back part are essentially flush with o...

Deux fractions pharmaceutiquement utiles de l'acide hyaluronique sont obtenues, une première fraction ayant un poids moléculaire compris entre 50 000 et 100 000 utile pour la cicatrisation des plaies et une seconde fraction ayant un poids moléculaire moyen compris entre 500 000 et 730 000 utile en injections intra-occulaires et intra-articulaires. Ces fractions d'acide hyaluronique sont, en outre,...

An article dispenser discloses a vessel for storing at least one of the articles. Such dispenser has a sphere pivotally suspended from the vessel for rotation in only one direction about a singular first axis that is offset from a second axis and which second axis passes through the center of gravity of the sphere. The first axis lies in a plane that bisects the sphere into a pair of hemispheres w...

A redundancy circuit for a semiconductor memory includes an ordinary decoder which selects a desired memory section in an ordinary memory, and a spare decoder which selects a desired memory section in a spare memory. The ordinary decoder includes a plurality of output inverters, each of which is connected to the corresponding ordinary memory section via an ordinary memory word line. A fuse is disp...

9-0-Acyltylosin derivatives of formula where R is a C2-7 alkanoyl or benzoyl group optionally substituted by C1-4 alkyl, C1-4 alkoxy, nitro or halo; where R<1> is hydrogen or mycarosyl; and R<2> is mycinosyl; or a pharmaceutically-acceptable salt thereof; are effective antibacterial agents.

Compounds of formula (I) (I) where R=C10-20 alkyl, alkenyl or alkylaryl; G=C6H10O5 radical derived from a hexose; u=0 or 1; 0 These compounds are prepared by addition of (a+b+c+d) moles of an oside or alkylglucoside, or moles o...

A novel N-acetylneuraminic acid derivative, represented by the general formula: wherein the R1 groups are, independently, hydrogen or acetyl; R2 is a nucleoside residue; and R3 is carboxyl or methoxycarbonyl. The N-acetylneuraminic acid derivative is useful in inhibiting metastasis of cancer cells. Also provided is a process for the preparation of the derivatives.

1- beta -D-arabinofuranosyl-(E)-5-(2-halogenovinyl)uracil-5'-phosphates of the formula (I): (I) and wherein X is halogen, pharmaceutically acceptable salts thereof, are produced by phosphorylation of the non-phosphorylated precursors of the compounds (I), and are useful as anti-viral agents.

A process for preparing cyclopentenone derivatives of the formula: (I) wherein R1 is hydrogen, lower alkyl or lower alkenyl, R2 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl, substituted or unsubstituted aryl or substituted or unsubstituted ar(lower)alkyl and A is the residue of a nucleophilic agent from which a hydrogen atom is excluded, which comprises reacting a 3...

2'-Modified kanamycins, including 2'-deoxykanamycin A, 2'-epikanamycin A and 2'-epikanamycin B, as new compounds are produced starting from kanamycin A by consecutive reaction steps. These new compounds are useful as antibacterial agent.

A therapeutic composition of antiinflammatory, analgesic and antipyretic activity comprises as its active principle, at least one component of the general formula: in which R is a linear or branched alkyl radical containing 1-18 C atoms or a phenylalkylene in which the alkylene chain contains 1-6 C atoms; R1 is H, an aliphatic acyl radical containing 1-6 C atoms or an aromatic acyl radi...

A polynucleotide synthesizing apparatus comprises reactor means; reagent and solvent bottle means which is charged with reagents and solvents required for the polynucleotide synthesis reaction; change valve means having at the inlet side thereof a plurality of reagent and solvent ports which are communicated with said reagent and solvent bottles and a common port communicated with said reactor mea...

A stairlift is battery powered, and the battery 32 is carried on the lift carriage 10. The battery powers a DC motor 34 which turns a pinion 88, and the pinion engages lateral pins 72 in a rail rack. The rail extend up the stairs and forms a track to guide and support the carriage which latter includes rollers 20 for engaging above and below the rail.

A method and apparatus are provided for synthesizing organic compounds in which reactants A and B are bound to respective polymeric supports and P/ &cir& and P'/ &cir& . Reactant A is bound to P/ &cir& via a linking moiety alpha min and an intermediate reactant alpha is circulated between the two polymeric supports. When alpha is fed to the first support alpha -A is formed and when alph...

The conveying device contains a transfer car which is provided with a load-lifting means in the form of a platform, a cab, a seat or the like. The transfer car is guided on two parallel rails by means of a driving mechanism which comprises two roller sets of four rollers each. The rollers are cardanically suspended and thereby enable tight curves and inclines superimposed on these curves to be neg...