18 results about "Blood separation device" patented technology

A blood separation device includes a pump system, a separator, and a controller. The controller is programmed to execute a blood separation procedure including a red blood cell collection stage in which blood is conveyed into the separator, red blood cells are separated from the blood in the separator, and the separated red blood cells are conveyed from the separator into a collection container. The red blood cell collection stage is ended when a target volume of blood has been separated in the separator. The controller then determines a percentage of the red blood cells from the target volume of blood that have been collected in the collection container based on the volume of red blood cells and the hematocrit of the fluid in the collection container, a volumetric flow rate of pure red blood cells in the blood conveyed into the separator, and the procedure time.

A system for whole blood sampling and separation includes a blood draw device coupled to a catheter assembly, with the blood draw device including a catheter tube, a housing that movably receives the catheter tube, and an advancement member to move the catheter tube between first and second positions, to enable a distal end of the catheter tube to be disposed within or past a distal tip of an indwelling catheter. A blood separation device is attached to the blood draw device to directly receive a blood sample therefrom and comprises a centrifuge-free mechanism configured to separate a plasma or serum sample from the blood sample. A sample collection container is coupled with the separation device and provides a vacuum pressure that draws the blood sample into the separation device, with the separated plasma or serum sample being drawn into the sample collection container.

The application provides a non-invasive blood separation process monitoring method and system based on infrared imaging, and relates to the technical field of medical detection and biological separation, and comprises the following steps: acquiring an infrared image sequence of a blood separation device through an infrared camera, and capturing the thermal radiation distribution characteristics of blood components; adopting a sliding window Kalman filtering algorithm to perform time domain noise reduction on the infrared image sequence, and adaptively adjusting the sliding window length, dynamically updating the noise covariance, and outputting the noise-reduced infrared image; processing the noise-reduced infrared image based on a multi-model switching convolutional neural network architecture, dynamically selecting and loading a convolutional neural network model matched with the current blood separation stage, so as to extract blood separation interface morphological characteristics; and calculating key separation parameters based on the separation interface morphological characteristics, and triggering an early warning signal when the parameters are abnormal. The application realizes non-invasive dynamic monitoring of clinical blood separation.

A two-way blood plasma separating device is used for extruding and outputting liquid in a blood bag 10 and comprises a horizontal pushing extruder and a flow controller, the horizontal pushing extruder is provided with a fixing clamping plate 20 and an extruding clamping plate 30, the plate face of the extruding clamping plate 30 is parallel to the plate face of the fixing clamping plate 20, and a first output hose 11 and a second output hose 12 are arranged at the two ends of the blood bag 10. The squeezing clamping plate 30 squeezes the blood bag in the direction perpendicular to the plate face of the fixing clamping plate 20, and the flow controller 40 is provided with a first flow control valve and a second flow control valve. The blood bag provided with the double output hoses is adopted, the horizontal pushing squeezer is adopted for horizontally pushing and squeezing the blood bag, simultaneous output of upper and lower layers of blood components in the blood bag can be achieved, the blood bag can be stably and evenly squeezed, and the flow controller can control the flow of the two output hoses of the blood bag and balance the output speed of the upper and lower blood components. And the flow controller is divided into an upper valve body and a lower valve body, so that loading and unloading of the output hose are facilitated.

A controller for a blood processing device has a body that may dock and undock with a first blood processing device to connect the controller to the first blood processing device and disconnect the controller from the first blood processing device. A processor within the controller controls the first blood processing device when the controller is docked with the first blood processing device and remotely controls the first blood processing device when undocked. The controller also has a user interface that displays information regarding the first blood processing device and an ongoing apheresis procedure when the controller is docked to the first blood processing device and when the controller is undocked from the first blood processing device.

The application discloses a blood separation method and a separation device, relates to the field of blood separation, and needs to use a blood separation device, wherein the blood separation device comprises a centrifugal device and a separation tube; the separation tube is in circular motion with the rotation center of the centrifugal device as the center during use; the separation tube comprises a blood inlet, a plasma outlet, a red blood cell outlet and a nucleated cell outlet; the plasma outlet is located at one end close to the rotation center; the red blood cell outlet and the nucleated cell outlet are located at one end away from the rotation center; blood is continuously injected into the blood inlet after the movement of the separation tube, and the plasma, the red blood cells and the nucleated cells in the separation tube continuously or intermittently flow out when the volumes of the plasma, the red blood cells and the nucleated cells reach a separation threshold value during the period. Compared with the prior art, the application adopts a continuous centrifugal method to separate various components in blood by guaranteeing a centrifugal sedimentation distance, so that the separation effect is obviously improved, and the actual effect is very remarkable.

1. Name of the product in this design: Blood separation device. 2. Application of this design: This design is used for centrifugation of blood to prepare platelet-rich plasma. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to the technical field of biomedicine, in particular to a micro-fluidic chip, a blood separation device and a blood separation method. The micro-fluidic chip comprises a chip base body, a micro-channel, a micro-channel inlet and a micro-channel outlet, the micro-channel, the micro-channel inlet and the micro-channel outlet are arranged in the chip base body, a plurality of grooves are formed in the bottom wall of the micro-channel, and the micro-channel is distributed in an Archimedes spiral shape. The micro-fluidic chip provided by the invention comprises micro-channels distributed in an Archimedes spiral shape, a plurality of grooves are formed in the bottom walls of the micro-channels, sound wave processing is coupled to construct an oscillating micro-bubble array during blood separation, micro-bubble resonance is excited to realize efficient control on cells in blood, red blood cells, white blood cells and blood platelets are effectively separated, and the blood separation efficiency is improved. The efficient preparation of the high-purity plasma matrix is realized.

A blood separation device that allows high quality plasma to be generated using a single power source. The device includes a housing with an inlet port adapted to receive the blood sample, a first chamber having a first chamber flow channel in fluid communication with the inlet port, a second chamber having a second chamber flow channel, a separation member disposed between the first chamber and the second chamber. In some embodiments, the blood separation device detects or tests for the presence of a substance, such as an antigen or an antibody.

The invention discloses blood separation equipment with a calling function, and relates to the technical field of medical instruments, and the blood separation equipment comprises an equipment main body, a power shaft, a turntable, a material placing frame and sample bottles. The invention further discloses a separation method of the blood separation equipment with the calling function. The separation method comprises the following steps of sample placement, sample separation and sample taking down. According to the centrifugal separation device, the power shaft, the rotating disc, the discharging frame and the sample bottles are arranged, the rotating disc and the power shaft are detachably connected in an inserted mode through the spline shaft and the spline groove, and when samples are centrifugally separated, the discharging frame and the sample bottles turn over under the action of centrifugal force, so that the sample bottles tend to be parallel, and the samples in the sample bottles are layered conveniently; after the sample bottles are recovered to be in the vertical state, the layered samples can be kept in the layered state, so that the standing layering effect is omitted, and the layering efficiency of the device is improved while the sample bottles are convenient to take and place.

Systems and methods are provided for separating blood into two or more components for collection of red blood cells, plasma, or both red blood cells and plasma. A blood separation system includes a blood separation device and a fluid flow circuit configured to be mounted to the blood separation device. The blood separation device includes a centrifugal separator and a spinning membrane separator drive unit, with the blood being separated into its constituents by the centrifugal separator. Separated plasma may be collected following separation by the centrifugal separator or may first be conveyed from the centrifugal separator into the spinning membrane separator drive unit to separate cellular blood components from the plasma prior to collection of the filtered plasma. The cellular blood components filtered from the plasma may be retained in the circuit as a waste product or may be flushed out of the circuit to a recipient.

The utility model provides a centrifugal blood separation test tube rack and a centrifugal blood separation device, and relates to the technical field of blood centrifugation. The centrifugal blood separation test tube rack comprises a main rack body, a movable cover and a plurality of test tube sleeves, the main frame body is arranged in the centrifugal cavity and is in transmission connection with the centrifugal driving unit so as to rotate under the driving action of the centrifugal driving unit; a movable cavity is formed in the main frame body; the movable cover is detachably connected with the main frame body, and the movable cover is provided with a plurality of rotating grooves; each test tube sleeve is rotatably connected to one rotating groove, part of the test tube sleeve is accommodated in the movable cavity, and each test tube sleeve is used for sleeving one separation test tube; and the test tube sleeve is tangent to the movable cover relative to the rotating axis direction of the rotating groove. The centrifugal blood separation test tube rack is simple in structure, flexible and convenient to operate, good in universality, wide in application range and beneficial to reduction of centrifugal treatment cost and improvement of centrifugal treatment efficiency.

The invention provides a non-invasive blood separation process monitoring method and system based on infrared imaging, and relates to the technical field of medical detection and biological separation.The non-invasive blood separation process monitoring method comprises the steps that an infrared image sequence of a blood separation device is collected through an infrared camera, and heat radiation distribution characteristics of blood components are captured; performing time domain noise reduction on the infrared image sequence by adopting a sliding window Kalman filtering algorithm, adaptively adjusting the length of a sliding window, dynamically updating a noise covariance, and outputting a noise-reduced infrared image; a convolutional neural network architecture based on multi-model switching processes the infrared image after noise reduction, and dynamically selects and loads a convolutional neural network model matched with the current blood separation stage to extract morphological characteristics of a blood separation interface; key separation parameters are calculated based on the separation interface morphological characteristics, and an early warning signal is triggered when the parameters are abnormal. According to the invention, noninvasive dynamic monitoring of clinical blood separation is realized.

Systems and methods are provided for separating blood into two or more components for collection of red blood cells, plasma, or both red blood cells and plasma. A blood separation system includes a blood separation device and a fluid flow circuit configured to be mounted to the blood separation device. The blood separation device includes a centrifugal separator and a spinning membrane separator drive unit, with the blood being separated into its constituents by the centrifugal separator. Separated plasma may be collected following separation by the centrifugal separator or may first be conveyed from the centrifugal separator into the spinning membrane separator drive unit to separate cellular blood components from the plasma prior to collection of the filtered plasma. The cellular blood components filtered from the plasma may be retained in the circuit as a waste product or may be flushed out of the circuit to a recipient.

The invention discloses a blood separation device, which comprises a base, a blood collection device, a blood collection device, a blood collection device, a blood collection device, a blood collection device and a blood collection device, and is characterized in that the base is internally provided with a cavity and is provided with an inlet area and an outlet area; the micro-column module is arranged in the cavity; the cover plate is connected with the micro-column module to form a blood separation flow channel communicated with fluid in the inlet area and the outlet area, the micro-column module is composed of a plurality of micro-column arrays, and adjacent rows of micro-columns are transversely arranged in a staggered mode. The plasma-rich components are collected from the first outlet area, the blood cell-rich components are collected from the second outlet area, the structure is simple, the design is reasonable, and the separation time is remarkably shortened by combining a deterministic lateral displacement separation method; the device adopts a miniaturized design, is convenient to carry and assemble, and is particularly suitable for instant use in emergency treatment, community clinics and mobile medical scenes.

The present invention provides a blood analysis platform comprising: a blood separation chip in which whole blood mixed with a magnetic fluid is injected into a separation space formed in the center thereof, and the injected whole blood is separated into blood cells and plasma in the separation space; and a blood separation means which has the blood separation chip received inside the center thereof and provides an external force so as to enable the whole blood received in the blood separation chip to be separated into blood cells and plasma. Thus, without using a syringe injection pump, whole blood not diluted in a buffer may be separated into blood cells and plasma, and the blood may be analyzed using the separated blood cells and plasma.

The invention provides a blood separation device for forensic DNA extraction and a method thereof. The device comprises a separation box body, a liquid medicine tank, a rotating cavity and a separation driving mechanism, a rotating cavity is rotationally connected to the middle, close to the top end, in the separation box body, a plurality of test tube containing cavities are formed in the rotating cavity, test tubes containing blood are placed in the test tube containing cavities, liquid medicine tanks are further installed on the separation box body, and a separation driving mechanism is further installed at the position, below the rotating cavity, in the separation box body. The separation driving mechanism comprises a driving motor, a planetary gear, a first electromagnetic clutch, a driving shaft, an eccentric cycloid mechanism, an eccentric shaft and a second electromagnetic clutch. Through cooperation of the first electromagnetic clutch, the second electromagnetic clutch and the hydraulic rod, a blood sample in a test tube and liquid medicine are subjected to premixing treatment, uniform mixing treatment and high-speed centrifugal rotation treatment, blood separation operation can be completed conveniently and efficiently, and popularization and application are facilitated.

Apparatus and methods for separating blood components are disclosed in which an apparatus for separating blood generally includes a tube defining a channel and configured for receiving a quantity of blood and a float contained within the tube and having a density which is predefined so that the float is maintained at equilibrium between a first layer formed from a first fractional component of the blood and a second layer formed from a second fractional component of the blood. Upon completion of the centrifugation, the first layer may be removed from the tube while the float isolates the second layer from the first layer.