摘要:
Block polymers usable as defoamers have the following formula ##STR1## in which R represents a glycerol or polyglycerol function having a degree of polymerization x of from 1 to 6 and the indices y is equal to (x-z+2), z is equal to (x-y+2), a is equal to 1 to 15, b is equal to 50 to 200 c is equal to 1 to 15, d is equal to 20 to 150 and e is equal to 1 to 15, with the proviso that the sums (a+c+e) is equal to 2 to 20, (b+d) is equal to 50 to 250 and (c+e) is equal to 1 to 15, and y has a value of at least 1.The block polymers are prepared by reaction of glycerol or polyglycerol having a degree of polymerization x with ethylene oxide, then with propylene oxide and, finally, again with ethylene oxide, preferably in the presence of alkaline etherification catalysts.
摘要:
An apparatus system has a connection unit and a number of apparatuses which can be connected to the connection unit and can be operated as intended independently of one another and independently of the connection unit. Each apparatus has a system lead including a number of connecting cables connected to a system connector and the connection unit having plug devices for the system connectors for the purpose of connecting the apparatuses to the connection unit. All the electrical connecting cables required to operate an apparatus in each case are combined in the system lead of the apparatus.
摘要:
A medical apparatus has an apparatus part which is provided for application against the body surface of a patient, and a patient support mechanism and a system for adjusting the apparatus part and the patient support mechanism relative to each other. The system simultaneously adjusts the apparatus part at a first adjustment speed in a first direction and the patient support mechanism at a second adjustment speed in a second direction, with the first and second adjustment speeds having a fixed constant relationship, so that the apparatus part and the patient support mechanism are caused to execute a motion in a third direction relative to each other. The third direction can be selected to compensate for dislocations of the body of the patient which are anticipated upon the application of the apparatus part to the patient's body surface, so that the patient remains as stationary as possible.
摘要:
An apparatus for supporting a patient during radiation therapy includes a treatment table that is pivotable about a horizontal axis, and a laser measurement system which is designed to indicate a non-horizontal orientation of the treatment table to be adopted during the radiation therapy.
摘要:
An apparatus for supporting a patient during radiation therapy includes a treatment table that is pivotable about a horizontal axis, and a laser measurement system which is designed to indicate a non-horizontal orientation of the treatment table to be adopted during the radiation therapy.
摘要:
The invention relates to a sensor comprising a sensor element (1) for detecting a physical variable, said sensor comprising two electric contact surfaces (2), and comprising a sensor body (3), on one end of which the sensor element (1) and on the other end of which a contact carrier (4) is located, wherein the contact carrier (4) supports at least two insulation displacement contacts (5) suitable for producing an insulation displacement connection (6) to an electric connecting cable (7), wherein each contact surface (2) is connected to an insulation displacement contact (5). The invention also relates to a sensor assembly. The combination of the insulation displacement technology with the sensor makes it possible for the sensor and the cable tree of a motor vehicle, for example, to be contacted in a simple manner.
摘要:
A medical apparatus has a patient support table with a seating surface and a mounting side, the apparatus having at least one apparatus part. At least one of the apparatus part or the patient support table (or the seating surface thereof) is adjustable relative to the other so that the apparatus part and the patient support table assume a mounting position wherein those regions of the apparatus part that have a distance of less than 100 cm from the seating surface measured in vertical direction, are spaced from the edge of the patient support table that limits the mounting side no closer than 40 cm measured horizontally and transversely relative to the edge.
摘要:
A therapy apparatus has a source of acoustic waves which generates acoustic waves focused onto a focus and which has an x-ray-transparent region, and the focus lying in an isocenter and an x-ray locating system whose central ray proceeds through the isocenter and is adjustable relative to the source in a locating sequence such that a subject to be treated is irradiated by locating radiation from different directions, with the central ray in one of the irradiation directions proceeding through the x-ray transparent region and the acoustic wave source is maintained stationary during the sequence. A corresponding method is also disclosed.
摘要:
A therapy station for treatment of a patient with focused acoustic waves has a source of focused acoustic waves attached to a source carrier, an x-ray carrier carrying an x-ray locating system, and a support table for the patient. The x-ray carrier is pivotably attached to the source carrier so as to be pivotable relative to the source of acoustic waves and such that the central ray of the x-ray locating system always proceeds through the focus of the focused acoustic waves, and the source carrier is adjustable relative to the support table in a plane.
摘要:
A process for the production of alcohol polyglycol ethers by reaction of an alcohol with ethylene oxide and/or propylene oxide wherein a basic alkali metal compound catalyst is employed in at least 0.5% by weight, expressed as sodium methylate, and based on the total weight of the reactants. The reaction mixture is neutralized in the presence of a filter aid.