1972results about "Blood sampling devices" patented technology

An apparatus includes a housing, a fluid reservoir, a flow control mechanism, and an actuator. The housing defines an inner volume and has an inlet port that can be fluidically coupled to a patient and an outlet port. The fluid reservoir is disposed in the inner volume to receive and isolate a first volume of a bodily-fluid. The flow control mechanism is rotatable in the housing from a first configuration, in which a first lumen places the inlet port is in fluid communication with the fluid reservoir, and a second configuration, in which a second lumen places the inlet port in fluid communication with the outlet port. The actuator is configured to create a negative pressure in the fluid reservoir and is configured to rotate the flow control mechanism from the first configuration to the second configuration after the first volume of bodily-fluid is received in the fluid reservoir.

A bodily-fluid transfer device includes a housing, a pre-sample reservoir, and an actuator. The housing defines an inner volume between a substantially open proximal end portion and a distal end portion that includes a port couplable to a lumen-defining device. The pre-sample reservoir is fluidically couplable to the port to receive a first volume of bodily fluid. The actuator is at least partially disposed in the inner volume and has a proximal end portion that includes an engagement portion and a distal end portion that includes a sealing member. The engagement portion is configured to allow a user to selectively move the actuator between a first configuration such that bodily fluid can flow from the port to the pre-sample reservoir, and a second configuration such that bodily fluid can flow from the port to a sample reservoir defined at least in part by the sealing member and the housing.

An apparatus includes a cannula assembly, a housing, a fluid reservoir, a flow control mechanism, and an actuator. The housing includes an inlet port removably coupled to the cannula assembly and defines an inner volume. The fluid reservoir is fluidically coupled to the housing and configured to receive and isolate a volume of bodily fluid from a patient. The flow control mechanism is at least partially disposed in the inner volume. The actuator is operably coupled to the flow control mechanism and is configured to move the flow control mechanism between a first configuration, in which bodily fluid can flow, via a fluid flow path defined by the flow control mechanism, from the cannula assembly, through the inlet port and into the fluid reservoir, to a second configuration, in which the fluid reservoir is fluidically isolated from the cannula assembly.

This disclosure generally relates to medical devices that include a sensor transmitter assembly that includes a sensor assembly including a sensor module where a first sensor including a first sensor head having at least one first sensor contact pad is combined with a second sensor including a second sensor head having at least one second sensor contact pad. The sensor transmitter assembly also includes a transmitter assembly positioned on a top of the sensor assembly to form a single unit, the transmitter assembly having at least one transmitter contact disposed on a base of the transmitter assembly, where the first sensor contact pad(s) and the second sensor form a connection path with the transmitter contact(s).

A fluid control device includes an inlet configured to be placed directly or indirectly in fluid communication with a bodily fluid source and an outlet configured to be placed in fluid communication with a fluid collection device. The fluid control device has a first state in which a negative pressure differential produced from an external source such as the fluid collection device is applied to the fluid control device to draw an initial volume of bodily fluid from the bodily fluid source, through the inlet, and into a sequestration portion of the fluid control device. The fluid control device has a second state in which (1) the sequestration portion sequesters the initial volume, and (2) the negative pressure differential draws a subsequent volume of bodily fluid, being substantially free of contaminants, from the bodily fluid source, through the fluid control device, and into the fluid collection device.

A method of attaching a magnetic element to a needle assembly. The needle assembly can include a cannula extending along a longitudinal axis. The method can include placing the magnetic element in a magnetic field such that a magnetic axis of the magnetic element substantially aligns with the magnetic field. The method can further include securing the magnetic element to a portion of the needle assembly while the magnetic element is substantially aligned with the magnetic field such that the magnetic axis of the magnetic element is secured in a desired predetermined orientation.

The invention provides an abnormal blood sampling inspection data evaluation processing method and system of a blood sampling system. Wherein the diffusion track dynamic state of an anticoagulant-blood contact surface in a blood sampling tube is tracked in real time, dielectric response waveform distortion characteristics on the two sides are synchronously collected through a capacitance sensor array, and diffusion form parameters are generated; curvature sudden change is analyzed to trigger an acoustic fluid device to modulate audio frequency and flow velocity, and a composite disturbance field is formed; performing capacitance axial scanning on the disturbed mixed fluid, extracting phase angle offset and gradient abrupt change point coordinates, and constructing a dielectric anomaly three-dimensional map; matching a standard dielectric model, positioning a coordinate set of a concentration gradient imbalance area and a coordinate set of an eddy current attenuation area, and generating an anticoagulant abnormal index and a mixed defect matrix in combination with phase angle offset difference; and establishing a data anomaly degree evaluation function based on the anomaly index and the defect matrix, dynamically associating a clinical error threshold, and outputting a test evaluation result. According to the invention, anticoagulant diffusion can be monitored in real time, and the mixing quality error can be accurately evaluated.

The invention discloses a blood, urine and body fluid collecting, detecting, analyzing and uploading system based on multi-sensor integration, which comprises the following modules: a blood collecting module for collecting a blood sample; the urine collection module is used for detecting urine; the body fluid collecting module is used for detecting body fluid; the data processing module is used for preprocessing data; the feature extraction and classification module is used for constructing a multi-modal feature matrix based on a neural structure search network, a support vector machine and a random forest algorithm; the anomaly detection module is used for generating a weighted anomaly score in combination with an isolated forest and a depth anomaly detection model; the time sequence analysis module is used for analyzing the health trend by using a variational auto-encoder-generative adversarial network; the health portrait and risk assessment module is used for constructing a health map by adopting a graph convolutional network; and the encryption and uploading management module is used for encrypting by using AES and RSA and managing the data access authority based on the intelligent contract. According to the invention, a multi-modal sensor and an intelligent algorithm are integrated, and collection, detection, analysis, encryption and uploading of blood, urine and body fluid are realized.

This application discloses a rapid detection method for screening of dwarfism in children, which belongs to the field of intelligent medical technology. It includes the following steps: Step 1, accurately sampling through capillary effect, and automatically diluting the sample to ensure accurate concentration; Step 2, introducing the collected sample into a multi-channel microfluidic detection chip to achieve parallel quantitative detection of endocrine hormones; Step 3, real-time acquisition and amplification of weak biomolecule recognition signals to effectively improve the signal-to-noise ratio; Step 4, multi-dimensional analysis of the test results to achieve quantitative evaluation of growth and development, body mass index and sexual development indicators and risk prediction of endocrine diseases; Step 5, automatically integrating the analysis results and generating a standardized test report; Step 6, establishing a quality control mechanism throughout the entire detection process, including real-time monitoring of sample quality, tracking of detection process parameters, result consistency evaluation, and full traceability of detection data.

The present invention provides a blood collection device, wherein a blood collection needle is arranged at the first end of a needle holder, and the second end of the needle holder contacts a piston via an elastic device. The needle holder is provided with a stop arm. When the needle holder moves along the first direction of the launch tube, the stop arm and the blocking member in the launch tube change from the first state to the second state, thereby controlling the blood collection needle to be excited along the first direction. Under the control of the elastic device, the blood collection needle moves a preset distance in the second direction, so that the blood collection needle cannot contact the skin again after a single excitation. The present invention also provides a method for using the blood collection device. The present invention adopts a technology that makes the blood collection needle ineffective after a single excitation, thereby avoiding the problem of cross infection caused by multiple punctures.

A probe advancement device may be configured to couple to a catheter assembly. The probe advancement device may include a flexible housing, which may include a proximal end and a distal end. The probe advancement device may include a probe advancement element coupled to the proximal end of the flexible housing. The probe advancement element may include a probe extending in a distal direction within the flexible housing. The flexible housing may be configured to collapse along an axis in response to the probe being advanced in the distal direction. The probe may include a tube for blood collection, a guidewire, or another suitable element.

The invention discloses a precise and portable robot blood sampling instrument, and relates to the technical field of medical equipment, the precise and portable robot blood sampling instrument comprises a box body, a plurality of detection structures, a blood drawing structure and a driving structure, the box body forms a working cavity, each detection structure comprises a mounting seat and a plurality of detection devices, and the detection devices are arranged on the mounting seat. The multiple detection devices are mounted on the mounting base, the blood drawing structure comprises a puncture needle and a mounting part, the mounting part is arranged in the working cavity, the puncture needle is detachably mounted in the mounting part, and the driving structure comprises a manipulator, a plurality of first adjusting assemblies and a second adjusting assembly. The mechanical arm is installed in the working cavity, and the first adjusting assembly and the second adjusting assembly are both arranged at the movable end of the mechanical arm. The position of the detection structure is adjusted through the driving structure to detect the limbs of the patient to determine a proper blood drawing position, and the position of the blood drawing structure is adjusted according to the blood drawing position.

A data processing system is configured to identify treatment responsive to a health risk determined from feature data provided by one or more networked data sources. A classification engine generates a feature vector based on a natural language processing (NLP) of input data representing words provided by a user. Features of the feature vector represent health risk factors. Machine learning logic classifies the features to generate a classification metric indicating whether the features are indicative of health risks or not indicative of health risks. A prediction value is generated indicating a likelihood of each health risk factor for the patient. The patient can be diagnosed with a health condition or disease based on the identified health risks.

An operational unit for locating and neutralizing pathogen cells in blood includes a time use cassette which has a plurality of thin holding chambers that are filled with blood drawn from a patient. A light source illuminates each of the holding chambers and passes light to an underlying sensor array such that the cells in the blood selectively block the light to produce shadow images of the cells in the sensor array. A processor performs pattern recognition to identify and locate the pathogen cells by use of an image library. After the pathogen cells are located, an electric field is activated in the cassette chamber areas that include the identified pathogen cells. Sufficient electric field energy is applied to destroy the identified pathogen cells. A pump refills the cassette holding chambers, returns the neutralized-pathogen blood to the patient, and the process is repeated for a period of time.

The invention provides an intermittent detection method and device for body fluid parameters and a related system.The method is applied to a body fluid parameter detection system, the system comprises an infusion tube, a detection module, an extraction and injection device, a liquid path switch and a flushing device.The method comprises the steps that the liquid path switch is controlled to execute a closing action, and the liquid path switch is controlled to close the infusion tube; controlling the extraction and injection device to extract a preset first volume of target body fluid from a preformed hole of a target user into the infusion tube, controlling the detection module to detect parameters of the target body fluid when the target body fluid in the infusion tube is detected to pass through the detection module, obtaining the parameters of the target body fluid, controlling the liquid path switch to execute an opening action, and controlling the liquid path switch to execute a closing action; and controlling the flushing device to inject a preset second volume of functional liquid into the infusion tube, and controlling the extraction and injection device to enable the target body fluid to flow back to the target user when the functional liquid in the infusion tube is detected to pass through the detection module. When blood gas parameter detection is carried out, blood waste and detection cost are reduced.

Provided herein is a blood draw syringe connectable to a vascular access device for performing a blood draw. The blood draw syringe includes a syringe barrel and a plunger assembly. The plunger assembly includes a plunger rod and a stopper positioned at the distal end of the plunger rod, with the plunger assembly moveable within the syringe barrel to move the stopper between a starting position and a stop position, with a first volume provided in the chamber with the stopper at the starting position and a second volume provided in the chamber with the stopper at the stop position. The syringe is configured to enable pre-setting of the plunger assembly within the syringe barrel prior to a blood draw, with the stopper being positioned at the starting to provide a first volume that limits a maximum vacuum pressure in the syringe barrel during the blood draw.

An apparatus includes a housing, a flow control mechanism, and an actuator. At least a portion of the flow control mechanism is movably disposed within the housing. The apparatus further includes an inlet port and an outlet port, and defines a fluid reservoir. The outlet port is fluidically coupled to a second fluid reservoir and is fluidically isolated from the first fluid reservoir. The actuator is configured to move the flow control mechanism between a first configuration, in which the inlet port is placed in fluid communication with the fluid reservoir such that the fluid reservoir receives a first flow of bodily-fluid, and a second configuration, in which the inlet port is placed in fluid communication with the outlet port.

The invention discloses an intelligent portable blood vessel detector and a use method, and relates to the technical field of blood vessel detection equipment, the intelligent portable blood vessel detector comprises a shell, a detection head, a display screen and a wrist strap, a main control chip and a power supply are arranged in the shell, the detection head is movably arranged on the shell, the main control chip is electrically connected with the detection head, and the display screen is electrically connected with the wrist strap. A polarization filter, a beam splitter prism, a multispectral CMOS sensor, a laser projector and a linear motor are arranged in the detection head, the display screen is arranged on the shell, and the wrist strap is arranged on the shell. When blood sampling is carried out on a patient, the puncture needle can help a worker to improve the success rate during puncture, and therefore the working time is saved.

A blood collection device comprising a coupler having a protrusion configured to engage a catheter, the coupler positioned at the distal end of a handle. An extension port is positioned adjacent to the distal end of the handle, the extension port configured to couple to a vacutainer assembly. A slider with a body disposed within an interior of the handle and an arm extending through an axial slot extending along a length of the handle, the slider body having a lumen extending through from a distal end of the slider body to a flow path opening along a length of the slider body, the slider configured to move axially along a length of the handle. A cannula extending from a distal end of the slider body. The cannula can comprise a lumen extending from a distal end into the slider body. Also a movable seal coupled to slider body, the movable seal configured to seal the slider lumen against the handle interior.

The invention belongs to the field of biological microfluidics, and particularly relates to a detection device for biomarkers in blood. The invention provides a device for detecting biomarkers in blood. The device comprises a blood sampling layer, a detection layer and a micro-fluidic chip layer which are adjacent in sequence. According to the device for detecting the biomarkers in the blood, a blood sampling module, an anticoagulation module, a sample transmission module, a chemical reaction module and a signal detection module are integrated on a miniature wearable platform, and portable, painless, rapid and accurate detection is achieved.

Systems, devices, and methods for processing whole blood are disclosed. The system includes a reusable separation device, a disposable fluid circuit, and a controller configured to detect a flow restriction within a leukoreduction filter and to determine the cause of the flow restriction.

The invention relates to the technical field of medical detection, in particular to a microneedle array-containing S100A9 sample sampling and detecting device which comprises a base, a limiting column and a color developing assembly, the limiting column is fixedly connected to the top end of the base, and a working sliding groove for inserting the color developing assembly is formed between the limiting column and the base; a sampling groove is formed in the top end of the base, the inner bottom wall of the sampling groove is fixedly connected with a microneedle assembly used for puncturing the skin of a patient for sampling, and the top of the microneedle assembly communicates with a pretreatment assembly used for filtering an extracted sample; driving force is provided for the pretreatment assembly in the process that the color developing assembly is inserted into the working sliding groove, and the filtered sample is input into the color developing assembly to be detected. According to the invention, convenient sampling is realized through the microneedle assembly, and a sample is pertinently filtered by using the pretreatment assembly, so that macromolecular interference impurities such as cell debris and hemoglobin are effectively removed, the interference on S100A9 detection is reduced, and the accuracy and reliability of S100A9 detection are improved.

The invention discloses animal husbandry veterinary quarantine detection equipment, and relates to the technical field of quarantine detection. The animal husbandry veterinary quarantine detection equipment comprises a placing seat, a fixing frame is assembled at the top of the placing seat, a power rod driven by an electric push rod is assembled at the bottom of the fixing frame, and a blood sampling tube body is assembled at the bottom of the power rod. According to the animal husbandry and veterinary quarantine detection equipment, an animal is placed on a placement plate in a placement seat, an electric telescopic rod is started, and a movable rod, an arc-shaped outer plate, an elastic telescopic rod, an arc-shaped inner plate, a hydraulic bin I, a stress rod, a push plate, a spring I, a spring II and a pressing plate are matched, so that when blood sampling operation is not performed yet, only the animal is preliminarily fixed, and the blood sampling operation is performed; when blood sampling operation is carried out, the animal is further fixed, and after the blood sampling operation is completed, the animal is quickly restored to a preliminary fixing state, so that the clamping time is shortened, and the possibility of injury to the animal is reduced.

Systems and methods of use for continuous analyte measurement of a host's vascular system are provided. In some embodiments, a continuous glucose measurement system includes a vascular access device, a sensor and sensor electronics, the system being configured for insertion into communication with a host's circulatory system.

A glucose test arrangement is provided for use in a handheld meter. The arrangement comprises a disposable test pad responsive to glucose in a body fluid, and a supporting member adapted to support the test pad at an application site for applying body fluid from a user's skin onto a receiving area of the test pad. The receiving area faces away from the supporting member. One or more spacer elements are arranged on the supporting member adjacent to the test pad, wherein the one or more spacer elements have a skin-contacting end section which protrudes above the receiving area.

The invention belongs to the field of medical examination equipment, and provides a medical examination sampling device and a use method.The medical examination sampling device comprises a sampling table, a fixed baffle is fixedly installed on the edge of the upper surface of the sampling table, an operation window is formed in the bottom of one end of the fixed baffle, and a fixed groove is formed in the middle of the top end of the sampling table; the conveying mechanism comprises supporting rollers, the supporting rollers are symmetrically and rotationally installed on the two side edges of the inner wall of the fixing groove, the outer surfaces of the supporting rollers are sleeved with a conveying belt, a stepping motor is installed in the middle of one end of each supporting roller, positioning assemblies are arranged on the outer surface of the conveying belt at certain intervals, and limiting clamping pipes are installed on the portions, in the positioning assemblies, of the outer surface of the conveying belt. By means of the automatic separating and collecting structure (the connecting rotary disc, the fixing clamping sleeve and the collecting box), non-contact recycling of blood sampling parts is achieved, direct contact between medical workers and blood samples and sharp tools is reduced, and occupational exposure risks are remarkably reduced.

The utility model provides blood glucose detection test paper and a blood glucose detection test paper storage box, and relates to the technical field of blood glucose detection consumables, the blood glucose detection test paper comprises a substrate, an electrode layer is laid on the substrate, and a mistake-proof slot is formed in the lower part of the substrate; an insulating layer is arranged above the electrode layer, a sampling window is formed in the insulating layer, an enzyme layer and a hydrophilic layer are arranged in the sampling window, the enzyme layer is attached to the upper surface of the electrode layer, and the hydrophilic layer is arranged above the electrode layer; a release film is laid on the insulating layer, the release film is divided into a sampling end, a main body and an electrode end through an easy-to-tear line, and the divided release film covers the sampling window, the insulating layer main body and the electrode end respectively. The sealing structure has the advantages of good sealing performance and capability of avoiding wrong insertion of front and back surfaces of electrode ends.

A graphical representation may be displayed including at least a plurality of transducer graphical elements, each transducer graphical element of the plurality of transducer graphical elements representative of a respective transducer of a plurality of transducers of a transducer-based device. A set of user input may be received including an instruction set to reposition a first transducer graphical element in a state in which the first transducer graphical element is located at a first location in the graphical representation and a second transducer graphical element is located at a second location in the graphical representation, the second location closer to a predetermined location in the graphical representation than the first location. In response to conclusion of receipt of the set of user input, the first transducer graphical element may be repositioned from the first location in the graphical representation to the predetermined location in the graphical representation.