摘要:
A bracelet assembly for carrying identification information. The bracelet assembly has an elongated flexible band with fastening means for fastening the band in a closed loop fashion around a patient's limb. There is a transparent portion on the flexible band through which the user can read the identification information. A permanently deformable layer is interposed between the transparent portion and a base layer. The base layer and permanently deformable layer are of contrasting colors. The permanently deformable layer is deformed by lines of force applied by mechanical pressure means such as a typewriter or credit card imprinter which deforms the deformable layer along the lines of force which correspond to the identification information. This renders the base layer visible through both the transparent portion and the permanently deformable layer along the lines of pressure.
摘要:
The motor chamber of an automotive vehicle horn is vented to the atmosphere through a hole in the diaphragm. The hole is located on a vibratory portion of the diaphragm and is laser drilled to obtain an accurately dimensioned hole with smooth edges.
摘要:
A bar code reading system having a wand that detects variations in light reflected by bars and spaces of the label produces a sequence of corresponding pulses and intervals as the wand scans the label. The entire sequence of pulses and intervals is input to a microprocessor system which produces corresponding digital duration numbers. The microprocessor system computes a reference number for a first character of the label and compares each digital duration number of the character to the reference number to compute a binary number with bits that are a "one" or a "zero" according to whether corresponding digital internal numbers exceed or are less than the reference number. If the number of "ones" in the binary number is too low or too high, the microprocessor decreases or increases the reference time, compares the digital duration number with the adjusted reference number, and re-determines if the resulting value of the binary number has the correct number of "ones". This compensates for variations in scan speed over different characters of the label.
摘要:
Fluorogenic substrates for proteolytic enzymes having the formula: ##STR1## or acid salts thereof wherein: R.sub.1 is hydrogen-L, hydrogen-D, benzoyl, benzenesulfonyl, glutaryl, pyroglutamyl, carbobenzoxy, D-serine, or carbobenzoxy-serine;R.sub.2 is hydrogen, phenyl, a straight, branched or cyclic alkyl having 1 to 4 carbons, or propionic acid;R.sub.3 is hydrogen, straight or branched or cyclic alkyl having 1 to 4 carbons, 4-aminobutane, or 3-guanidylpropane;R.sub.4 is methyl, 4-aminobutane, or 3-guanidylpropane;R.sub.5 is a fluorogenic moiety, severable from said compound by a proteolytic enzyme and having different fluorescent property when severed from said compound than when forming part of said compound.The enzymes, when reacting with the substrate, remove the fluorogenic group R.sub.5 producing an increase in its fluorescence. The increase of the fluorescence is an indication of the activity of the enzyme present. Specific enzymes thusly detectable include plasmin, thrombin, the factors X.sub.a, XI.sub.a, & XII.sub.a, kallikrein, trypsin, elastase, urokinase, and cathepsin B.sub.1.
摘要:
Analysis of proteinases is accomplished using conventional amino acid containing aromatic amine substrates. Aromatic amines such as 4-methoxy-2-naphthylamine (4M2NA), 2-naphthylamine, aminoisophthalic acid dimethyl ester, p-nitroaniline, 5-methoxy-1-aminofluorene and coumarin derivatives resulting from enzymatic hydrolysis of the substrate couples with aromatic aldehydes such as 5-nitrosalicylaldehyde (5-NSA), benzaldehyde and p-nitrobenzaldehyde to produce Schiff-base complexes which are water insoluble. Certain Schiff-base complexes produce a shift from blue to orange-red (visible) fluorescence. Such complexes are useful in the assay of enzymes.
摘要:
An apparatus which grips the tail end of a rapidly traversing metal filament that has been wound onto a winding reel. The apparatus comprises a triggering means, which when actuated, pivots a grip lever that is mounted on the rotating reel support and locks the end of the advancing filament to the winding reel without interrupting the movement of either the filament or reel.
摘要:
A method of providing instruction on the performance of chest compressions includes providing a series of signals of a first type corresponding to the desired rhythm of delivery of chest compressions in a chest compression series, and providing signals of a second type which indicate a desired point in the first series. The desired point may be a point near the end of the chest compression series. The signals of the second type may be a voiced countdown to the end of the compression series. The signals of the first type may be a series of identical sounds delivered in the desired rhythm for chest compressions, and the signals of the second type may be sounds distinct from those of the first type which correspond to the rhythm of the last N compressions in the series. The desired point in the first series may include a first point at a desired interval from the first compression, where the interval is measured in number of compressions or elapsed time. A protocol may be chosen between a protocol for a patient with a secured airway and one for a patient with an unsecured airway.
摘要:
A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60.
摘要:
A generally cylindrical shaft seal with an axial opening is disclosed having annular “lips” or “legs” on one or both ends that are separated by a fluid-filled cavity. The seal is adapted to seal between a support or housing holding the seal and a generally cylindrical shaft passing axially through the seal. Fluid, under pressure, may enter the cavity and urge the lips or legs in a radial direction which enhances the sealing engagement of the seal member to the shaft and the housing. In certain embodiments, the seal has a concave inner surface to minimize the contact area (and hence the friction) between the seal and the movable shaft. The outer circumference of the seal may be equipped with one or more O-ring seals for sealing to the housing or support. The seal may be fabricated from natural or synthetic polymers, metal or composite materials.