摘要:
The invention relates to a container (1) for a fluid for metering a reagent into a microfluidic system. The container comprises a chamber (4) and a first film (3) which seals off the chamber (4) so that the fluid is encapsulated in the chamber. Advantageously, the first film (3) is an aluminum sealing film. A second film (7) is sealingly arranged on the first film, for example by adhesive bonding of the film layers. The films differ in their tear strength such that when pressure is applied simultaneously to both films the first film tears while the second film deforms elastically and/or plastically. By tearing the first film a connection is produced between the container chamber and an inlet channel so that a fluid contained in the chamber flows into the microfluidic system.
摘要:
A microfluidic device and a method of producing it are proposed, in which a film covers a chamber in a carrier. The film is locally re-tightened in the region of the chamber after the film has been secured to the carrier. In this way it is possible to prevent undesirable bulging of the film into the chamber.
摘要:
The invention relates to a device for sample separation, particularly for blood separation, in which the sample liquid is introduced into a feed device. The sample flows vertically through a separating device such as a filter or a membrane, so that sample particles are retained and separated off.The sample liquid thus separated, particularly blood plasma, is received by an inlet chamber underneath the separating device and conveyed by means of a channel in the lateral direction out of the inlet chamber.Particularly advantageously, the channel extends into the inlet chamber, the channel being formed by a recess in the base of the inlet chamber.
摘要:
The invention relates to a container (1) for a fluid for metering a reagent into a microfluidic system. The container comprises a chamber (4) and a first film (3) which seals off the chamber (4) so that the fluid is encapsulated in the chamber. Advantageously, the first film (3) is an aluminium sealing film. A second film (7) is sealingly arranged on the first film, for example by adhesive bonding of the film layers. The films differ in their tear strength such that when pressure is applied simultaneously to both films the first film tears while the second film deforms elastically and/or plastically. By tearing the first film a connection is produced between the container chamber and an inlet channel so that a fluid contained in the chamber flows into the microfluidic system.
摘要:
The sample support comprises at least one sample receiving chamber for a sample liquid, and a distributor channel for sample liquid connected to said at least one sample receiving chamber, with at least one such distributor channel extending from each sample receiving chamber. The sample support further comprises at least one reaction chamber entered by an inflow channel branched off said at least one distributor channel, and a venting opening for each reaction chamber. Each distributor channel and each inflow channel are dimensioned to have the liquid transport through the distributor and inflow channels effected by capillary forces. In each reaction chamber, the entrance region of the inflow channel is provided with a means for generating a capillary force causing the sample liquid to flow from the inflow channel into the reaction chamber.
摘要:
The invention relates to a device for sample separation, particularly for blood separation, in which the sample liquid is introduced into a feed device. The sample flows vertically through a separating device such as a filter or a membrane, so that sample particles are retained and separated off.The sample liquid thus separated, particularly blood plasma, is received by an inlet chamber underneath the separating device and conveyed by means of a channel in the lateral direction out of the inlet chamber.Particularly advantageously, the channel extends into the inlet chamber, the channel being formed by a recess in the base of the inlet chamber.
摘要:
A device is proposed having a separating device for filtering a liquid sample and having a conveying device. A positive pressure or negative pressure can be generated by means of the conveying device, for accelerating or assisting the filtration.
摘要:
Methods and apparatus provide for filling at least one cavity with a liquid via: partly filling a cavity of a semifinished product containing at least two cavities, covering the semifinished product at least in some areas, so as to prevent the escape of liquid from the semifinished product, displacing at least some of the liquid from the already partially filled cavity, such that at least one other cavity is completely filled by a portion of the displaced liquid and another portion of the displaced liquid at least partially fills at least one overflow.
摘要:
A method for filling a cavity, of a packaging, particularly a blister packaging, with a liquid and a packaging suitable for this purpose are proposed. The cavity is completely filled with the liquid by an acceleration force or by continuous throughflow.
摘要:
A device is proposed having a separating device for filtering a liquid sample and having a conveying device. A positive pressure or negative pressure can be generated by means of the conveying device, for accelerating or assisting the filtration.