Device for collecting blood and separating blood constituents, method for separating blood constituents and use of said device
First Claim
1. Device for collecting blood and separating blood constituents, comprising a cover and a carrier, a feed device for collecting the blood, a separator for separating blood constituents as sample liquid, a channel receiving the sample liquid, an inlet region of the channel adjoining an underside of the separator for receiving the separated sample liquid from the separator, and a venting device for venting the sample liquid in the inlet region laterally at right-angles to the main filling direction from the inlet region into the channel, wherein the venting device has a recess laterally adjacent to the channel and wherein the venting device has at least one venting channel in the carrier of the device connected to the recess.
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Accused Products
Abstract
A device and a method for collecting blood and separating blood plasma as a liquid sample using a channel that absorbs the liquid sample by capillary forces. To obtain a uniform filling of the channel with the liquid sample and an effective separation, deaeration takes place in a transverse direction to the main filling direction or to the longitudinal direction of the channel, immediately downstream of a separation device in an inlet region of the channel.
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Citations
45 Claims
- 1. Device for collecting blood and separating blood constituents, comprising a cover and a carrier, a feed device for collecting the blood, a separator for separating blood constituents as sample liquid, a channel receiving the sample liquid, an inlet region of the channel adjoining an underside of the separator for receiving the separated sample liquid from the separator, and a venting device for venting the sample liquid in the inlet region laterally at right-angles to the main filling direction from the inlet region into the channel, wherein the venting device has a recess laterally adjacent to the channel and wherein the venting device has at least one venting channel in the carrier of the device connected to the recess.
- 40. Device for collecting blood and separating blood constituents, comprising a feed device for collecting the blood, a separator for separating blood constituents as sample liquid, a channel receiving the sample liquid, an inlet region of the channel adjoining an underside of the separator for receiving the separated sample liquid, and a venting device for venting the sample liquid in the inlet region laterally at right-angles to a main filling direction from the inlet region into the channel, wherein the device has a filling device for filling the channel with sample liquid between opposing surfaces in the inlet region which delimit the channel, wherein the filling device comprises at least one structure projecting from one of said surfaces which creates a recess therearound, the separator resting on said at least one structure.
- 42. Device for collecting blood and separating blood constituents, comprising a feed device for collecting the blood, a separator for separating blood constituents as sample liquid, a channel receiving the sample liquid, an inlet region of the channel adjoining an underside of the separator for receiving the separated sample liquid, and a venting device for venting the sample liquid in the inlet area laterally at right-angles to a main filling direction from the inlet region into the channel, including means for directing light into the sample liquid, said means for directing light being directed at a free surface of the sample liquid in the region of an open side of the channel.
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45. A method of separating blood constituents or blood plasma as a sample liquid from blood using a planar separator, the sample liquid separated off being collected by a channel, the inlet region of which adjoins the flat side of the separator and conveys the sample liquid parallel to the flat side in a main filling direction, said sample liquid being vented at least in the inlet region at right-angles to the main filling direction.
Specification