摘要:
A sampling system for collecting a liquid sample, having at least one analytic auxiliary means is proposed. The sampling system has a coupling element for coupling onto the analytic auxiliary means and at least one drive unit for driving a movement of the coupling element from a rest position into a deflected position. The drive unit comprises an energy transducer which is designed to generate a rotational movement with different rotational directions. The drive unit furthermore has a coupling device with at least one rotational-direction sensitive element, wherein the coupling device is designed to couple the energy transducer to a first system function in a first rotational direction, and to couple said transducer to a second system function which differs from the first system function in a second rotational direction which differs from the first rotational direction.
摘要:
A pricking system includes lancets for producing a prick wound, sampling devices for collecting a sample of a body fluid from the prick wound, a housing having an opening for application of a body part in which the prick wound is to be produced, a drive arranged in the housing for moving one of the lancets to produce the prick wound and to then move one of the sampling devices to the prick wound so produced, a coupling part for coupling to the drive one of the lancets for a pricking movement and then coupling to the drive one of the sampling devices for a sampling movement, the coupling part being moved, during the pricking movement and the sampling movement, respectively, from a starting position into an end position by an advancing movement, and from the end position back into the starting position by a reversing movement, respectively, and a motion control which, during the sampling movement, causes the coupling part to reach an end position that differs from the end position reached by the coupling part during the pricking movement, wherein the end position reached by the coupling part in the sampling movement is laterally displaced relative to the end position reached by the coupling part in the prickling movement.
摘要:
An introducing device for introduction of a medical device into a body is described which has a distal region with a tip region for generating an opening in the skin, and a segment region which comprises at least two sections which, in a rigid state, are essentially rigidly connected at least to one another and to the distal region and which are movable relative to one another in a flexible state. Furthermore, a system is described in which a sensor is integrated into the device for introduction into a body.
摘要:
A system for simple nucleic acid analysis is described in which the amplification space contains at least a part of the binding space. An additional improvement is achieved by the design of the binding or/and amplification space which is optionally surrounded by a heatable metal layer.
摘要:
Magnetic particles are prepared containing a magnetic core coated with a glass layer having a substantially pore-free glass surface or having pores with a diameter of less than 10 nm. The particles are used for separating biological material such as nucleic acids. A preferred process of preparing the particles is by forming a mixture of magnetic cores with a sol formed from an alcohol and a metal alkoxide, spray-drying the mixture to coat the cores with a layer of gelled sol, and heating the coated cores to obtain the magnetic glass particles. Preferably, the particles have an average particle size of less than 100 μm. The magnetic core may be a composite material containing a mica core and magnetite particles immobilized on the mica core, and the glass layer may contain boron oxide. Magnetic core materials include magnetite (Fe3O4) and Fe2O3.
摘要翻译:制备磁性颗粒,其包含涂覆有具有基本无孔玻璃表面或具有小于10nm直径的孔的玻璃层的磁芯。 颗粒用于分离生物材料如核酸。 制备颗粒的优选方法是通过用由醇和金属醇盐形成的溶胶形成磁芯的混合物,喷雾干燥混合物以用一层凝胶溶胶涂覆芯,并加热涂覆的芯以获得 磁性玻璃颗粒。 优选地,颗粒的平均粒度小于100μm。 磁芯可以是包含固定在云母芯上的云母芯和磁铁矿颗粒的复合材料,并且玻璃层可以含有氧化硼。 磁芯材料包括磁铁矿(Fe 3 O 4 O 4)和Fe 2 O 3 O 3。
摘要:
The present invention provides a puncturing system for withdrawing body fluid. The puncturing system comprises a disposable puncturing unit, which includes a needle element for piercing into skin and a puncturing depth reference element with a skin contact area. The system includes a puncturing instrument which has a puncturing drive, wherein the puncturing drive is coupled by a coupling mechanism to the puncturing unit for driving the needle element to a puncturing depth, the puncturing depth being determined by the distance in the piercing direction between the skin contact area and the position of the tip of the needle at a reversal point of the puncturing movement. The puncturing depth reference element is connected to the needle element such that the puncturing depth reference element moves with the needle element during at least part of the puncturing movement. The puncturing depth reference element has a defined longitudinal position in the piercing direction relative to the needle element at least at the reversal point of the puncturing movement.
摘要:
An analytical system comprising a replaceable magazine (12) for providing a plurality of test units that react to an analyte and a measuring device (14) for processing the test units, wherein the magazine (12) is provided with a code (26) that can be registered by the measuring device (14). In order to enable the simplest possible coding, it is proposed that the code (26) comprises an unique magazine identifier (28) for the magazine (12) and that the measuring device (14) has a magazine-independent test counter (16) which registers the processing of a test unit and a counter memory (18) to store the magazine identifier (28) and a corresponding count of the test counter (16).
摘要:
Magnetic particles with an outer glass surface being essentially poreless or having pores of a diameter of less then 10 nm as well as ferromagnetic particles with a glass surface are preferentially useful for the isolation of biological material from samples. They provide a quick and reliable purification.
摘要:
The present invention is generally directed towards devices for sensing a concentration of chemical constituents in body fluid such as interstitial fluid, including but not limited to glucose. The devices also relates to systems for measuring and reporting the concentration of body fluid constituents at time intervals shorter than the physiological response time, thereby providing effectively continuous concentration measurements. The device according to the present invention comprises a probe, a reservoir with perfusion fluid connected to an inlet of the probe, at least one test zones which comprise a reagent, to react with the analyte to produce a detectable change, a reader unit which reads test zones wetted with fluid containing the analyte, where the reader unit produces signals according to the concentration of the analyte in the fluid; and a processing unit for processing the signals and the concentration of the analyte.
摘要:
The present invention concerns a method of producing flow rates of a transport liquid of about 1 to 1000 nl/min. The method provides a pump having a housing defining a space and including a channel and a wettable membrane positioned in the housing, the membrane including a first side facing toward the channel and a second side facing the space. The method further includes at least partially filling the channel with the transport liquid, contacting the wettable membrane with the transport liquid to generate an underpressure in the channel,evaporating the transport liquid at the wettable membrane to remove the transport liquid from the channel and to create an underpressure in the channel, and maintaining a generally constant vapor pressure of the transport liquid in the space.