58 results about "Blood separation device" patented technology

Programmable, fluid pressure actuated blood processing systems and methods are used in association a blood separation device. The systems and methods employ a cassette, which contains several preformed, pneumatically actuated pump stations, several preformed fluid flow paths, and several preformed, pneumatically actuated valves in the fluid flow paths. The systems and methods also employ a programmable pneumatic actuator to hold the cassette and selectively apply pneumatic force to the valves and pump stations.

A disposable blood separation set of a centrifugal blood processing system comprising a blood processing chamber adapted to be mounted on a rotor of a centrifuge; a frustro-conical cell separation chamber in fluid communication with the processing chamber, the cell separation chamber having a protruding inlet therein. The protruding inlet may have a frustro-conical inner surface that slants radially outwardly from an inlet to a mouth of the protruding inlet. A circumferential well may surround the protruding inlet. The cell separation chamber may have a baffle within a separation area. The baffle may have a plurality of vanes with openings therein.

The invention provides a blood separation pretreatment chip and a blood separation device. The pretreatment chip includes at least one microcolumn array arranged along the blood flow direction in order, column spacings between the microcolumn arrays are different, the column spacing of the at least one microcolumn array decreases successively according to the arrangement order of the at least one microcolumn array, and the at least one microcolumn array at least includes a red blood cell intercepted microcolumn array, the red blood cell intercepted microcolumn array intercepts red blood cells in blood to filter out red blood cells from the blood. Blood flows in from an inlet of the blood separation pretreatment chip, and undergoes interception and filtration by the at least one microcolumn array in order, thus obtaining blood plasma containing red blood cells and platelets with the amount being lower than a preset amount, and the obtained blood plasma then flows out from a blood separation pretreatment chip outlet. The blood separation pretreatment chip and the blood separation device provided by the invention can realize fast separation of a small amount of blood samples, and improve the blood sample detection efficiency.

A blood separation and testing system for a blood sample is disclosed. The blood separation and testing system includes a blood sampling transfer device adapted to receive a blood sample, a blood separation device, and a blood testing device. The blood separation device is adapted to receive a portion of the blood sampling transfer device such that with the blood sampling transfer device received within the blood separation device and a rotational force applied to the blood sampling transfer device, a plasma portion of the blood sample is separated from a cellular portion of the blood sample. The blood testing device is adapted to receive a portion of the blood sampling transfer device to analyze the plasma portion of the blood sample and obtain test results.

The invention provides a whole blood and plasma separation system and a method thereof. The system includes a first blood separation device and a second blood separation device. The first blood separation device includes a blood collection unit and at least one first microfluidic chip. A micropillar array is arranged inside the microfluidic chip. The minimum column spacing of the microcolumn arrayis greater than or equal to diameter of red blood cells. The second blood separation device includes a second microfluidic chip, a plasma recovery unit and a waste fluid recovery unit. The second microfluidic chip is provided with a microfluidic channel. The blood collection unit, at least one first micro-fluidic chip and the second micro-fluidic chip are successively arranged in the blood flow direction and are sequentially connected end to end through a fluid pipe. The plasma recovery unit is connected to a plasma outlet of the microfluidic channel through a fluid pipe. The waste fluid recovery unit is connected to a waste fluid outlet of the microfluidic channel through a fluid pipe. According to the invention, rapid separation of blood cells and platelets in a very small amount of blood samples can be achieved, and the detection efficiency of blood samples is raised.

A capillary driven microfluidic device with blood plasma separation means that can be used to separate, meter and transfer a blood sample. The blood separation means can be arranged as a capillary pump by the configuration of a porous membrane and the microfluidic device.

A disposable blood separation set and a centrifugal blood processing system comprising a blood processing chamber adapted to be mounted on a rotor of a centrifuge; a frustro-conical cell separation chamber in fluid communication with the processing chamber, the cell separation chamber having an inlet, a primary outlet and a side tap outlet adjacent the inlet. A valve that is responsive to centrifugal force (a “gravity” valve) selects between the outlet and the side tap outlet. The gravity valve is mounted on the rotor. When the rotor spins at high speed, the gravity valve may open the primary outlet and close the side tap outlet. When the rotor spins at a lower speed, the gravity valve may open the side tap outlet and close the primary outlet.

A disposable blood separation set and a centrifugal blood processing system comprising a blood processing chamber adapted to be mounted on a rotor of a centrifuge; a frustro-conical cell separation chamber in fluid communication with the processing chamber, the cell separation chamber having an inlet, and outlet and a side tap outlet adjacent the inlet. The inlet may protrude into the cell separation chamber forming a circumferential well surrounding the protruding inlet. The side tap outlet may connect to the well. The set and system comprise means for selectively drawing fluid from either the outlet or the side tap outlet.

A disposable blood separation set of a centrifugal blood processing system comprising a blood processing chamber adapted to be mounted on a rotor of a centrifuge; a frustro-conical cell separation chamber in fluid communication with the processing chamber, the cell separation chamber a baffle within a separation area. The baffle may have a plurality of vanes with openings therein. A protruding inlet may have a frustro-conical inner surface that slants radially outwardly from an inlet to a mouth of the protruding inlet. A circumferential well may surround the protruding inlet.

Systems and methods are provided for automatically adjusting the operational parameters of a blood separation procedure. A blood separation device has an inlet for passing fluid thereinto and an outlet for removing fluid therefrom. A pump system is provided for moving fluid into and out of the device. In use, blood is conveyed into the device, where platelets are separated from at least a portion of the blood. A controller determines the amount of platelets in the device. Based at least in part on the amount of platelets in the device, corrective action is taken to avoid platelet aggregation in the device. The corrective action may be conveying an elevated amount of anticoagulant into the blood and / or the device and may be initiated when the determined amount of platelets approaches, meets, or exceeds a threshold predicted likelihood of platelet aggregation.

The invention discloses a household pocket-sized blood multi-parameter tester. The household pocket-sized blood multi-parameter tester comprises a blood separation device and a detection device, wherein the blood separation device is composed of a filtering device, a plasma fluid channel and a reaction tank; the detection device is composed of a light source which is vertically arranged above the reaction tank and a plurality of light-sensitive receivers mounted on the surface of the reaction tank; light emitted by the light source is vertically emitted into the reaction tank and information in the reaction tank is received by the light-sensitive receivers and is applied to clinical rapid blood component analysis and prevention of functional diseases of middle-aged and old people at home; and a result can be clinically obtained within ten minute, so that judgment on the diseases is greatly improved and delay of the optimal treatment time in the aspect of treatment is prevented. The household pocket-sized blood multi-parameter tester is portable and can be used at home, so that people do not need to check in hospital and the aims of keeping health, preventing and treating by oneself are realized; and helps are provided for future treatment by a long-period detection result.

Systems and methods for providing for the automatic instrument-based rapid reprocessing of an intact extracorporeal circuit for use in hemodialysis. The system includes a manifold with connectors for engaging a dialyzer as well as venous and arterial blood lines. The manifold is adapted to be moved from a dialysis machine to a reuse instrument without removing the dialyzer and associated blood lines. The system allows for reprocessing of the extracorporeal circuit wherein prior to the next treatment, there is no residual chemical disinfectant requiring testing, the extracorporeal circuit is pre-primed, the levels in the bubble traps are set, and all of the required quality assurance tests are performed and recorded.

For providing a blood separation device with which high-pitched noise is not generated even when a centrifugal separator is rotated before blood is introduced. A blood component separation device (100) includes a centrifugal bowl (19) including a stator (70) provided with an inlet (19a) and an outlet (19b) of blood or blood component and a rotor (75) provided rotatably with respect to the stator (70), a rotating and sliding portion between the stator (70) and the rotor (75) is sealed by pressing with predetermined pressing force, and the predetermined pressing force is 500 grams or less.

A blood separation and testing system for a blood sample is disclosed. The blood separation and testing system includes a blood sampling transfer device adapted to receive a blood sample, a blood separation device, and a blood testing device. The blood separation device is adapted to receive a portion of the blood sampling transfer device such that with the blood sampling transfer device received within the blood separation device and a rotational force applied to the blood sampling transfer device, a plasma portion of the blood sample is separated from a cellular portion of the blood sample. The blood testing device is adapted to receive a portion of the blood sampling transfer device to analyze the plasma portion of the blood sample and obtain test results.