1054results about "Blood sampling devices" patented technology

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).

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 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 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.

A delivery device for delivering an instrument into a catheter assembly may include a housing having a proximal end, a distal end, and a slot. The delivery device may include a guide feature, which may be disposed within the housing. The guide feature may extend through the slot. The delivery device may include an instrument disposed within the housing and extending through the guide feature. In response to movement of the guide feature along the slot in the distal direction a first distance, a first end of the instrument may be advanced in the distal direction a second distance, which may be greater than the first distance. A second end of the instrument may be stationary with respect to the housing.

A device includes a pre-sample reservoir, an actuator mechanism, and a diverter. The pre-sample reservoir can be fluidically coupled to a delivery member to receive and isolate a predetermined volume of bodily-fluid withdrawn from a patient. The actuator mechanism is operably coupled to the pre-sample reservoir such that, when actuated, a negative pressure is formed in the pre-sample reservoir that urges the bodily-fluid to flow into the pre-sample reservoir. The diverter can selectively control fluid flow between the delivery member and the pre-sample reservoir. The diverter includes a flow control mechanism that defines a first fluid flow path and a second fluid flow path. The diverter is movable between a first configuration in which the bodily-fluid flows through the first fluid flow path to the pre-sample reservoir, and a second configuration in which the bodily-fluid flows through the second fluid flow path to a sample reservoir coupled to the diverter.

The utility model relates to the technical field of blood taking needles, and discloses a blood taking needle protection device which comprises a blood taking needle, the blood taking needle is connected with a blood taking device through a hose, the right side of the blood taking needle is fixedly connected with a push piece, the upper side and the lower side of the push piece are both provided with holes, a hollow pipe is arranged on the outer side of the blood taking needle, and the hollow pipe is connected with the blood taking device. An opening is formed in the right side of the hollow pipe, the right side of the push piece penetrates through the opening, fixing columns are fixedly connected to the upper end and the lower end of the right side of the hollow pipe, connecting ropes are fixedly connected to the right ends of the fixing columns, and blocking blocks are fixedly connected to the right ends of the connecting ropes. According to the blood taking device, the sliding blocks are in sliding connection with the corresponding sliding grooves and matched with the pushing pieces to penetrate through the openings to slide, so that the pushing pieces drive the blood taking needles to be inserted into subcutaneous tissue for blood taking, the blocking blocks are matched with the corresponding holes to be clamped, the blood taking needles are protected by the hollow pipe after blood taking, infection caused by pricking of the blood taking needles is avoided, and later classification treatment is facilitated.

The application belongs to the technical field of medical apparatus and specifically relates to an adjustable blood sampling auxiliary device for children, which comprises a shell, an upper spring, a blood sampling needle, an adjusting assembly, a sliding cylinder, a lower spring, a protective cap and a pressing pad, which jointly constitute core main components. The upper spring is arranged at the top of the inner cavity of the shell, the blood sampling needle is slidably arranged in the inner cavity of the shell, the needle tip end thereof faces downward and reciprocates along the vertical direction under the pressure of the upper spring, the adjusting assembly is arranged on the wall of the shell and communicates with the inner cavity of the shell, the adjusting assembly adjusts the tension of the upper spring through a knob, and the pressing stroke and the puncture depth of the blood sampling needle are changed, the sliding cylinder has a cavity for accommodating components in the inside, the sliding cylinder slides in the inner cavity of the shell, and the bottom of the sliding cylinder protrudes from the bottom cavity opening of the shell. The application can preset the puncture degree of the needle part and fully cover the blood sampling needs of children of different age groups from zero to twelve years old, and solves the technical defects of fixed puncture depth and inability to adapt to individual differences in the prior art.

A specimen collection container assembly including a collection tube having a first open end and a second open end, and an interior reservoir formed within the collection tube. The assembly further includes a cap configured to be couplable to the collection tube to close the first open end, as well as a plug configured to be couplable to the collection tube to close the second open end. The collection tube also includes a flat mouth portion extending 360° around the first open end.

The device comprises a cage body, a cage door, a pressing rod and a bait hanging hook, the cage door is arranged on a cage opening of the cage body, the pressing rod is arranged on the cage door, the tail end of the pressing rod is connected with the bait hanging hook arranged at the rear end of the cage body when the pressing rod is in a horizontal state, and the bait hanging hook is arranged at the rear end of the cage body. The mouse cage further comprises a rapid blood collecting device and a reset flapping device, the rapid blood collecting device is fixedly arranged on the side face of the rear end of the cage body, and the reset flapping device used for flapping and pressing a mouse on the rapid blood collecting device is arranged in the cage body. And the reset flapping device is arranged in the cage body and is positioned on the same side as the rapid blood collection device. The invention has the innovation points that the rapid blood collection device and the reset flapping device are additionally arranged on the existing mouse trapping cage, and a mouse can be driven and flapped onto the rapid blood collection device after being trapped, so that the mouse is subjected to blood collection, and whether the mouse is infected with Yersinia pestis or not is detected.

A biological fluid collection system that receives a sample and provides flow-through blood stabilization technology and a precise sample dispensing function for point-of-care and near patient testing applications is disclosed. A biological fluid collection system of the present disclosure is able to effectuate distributed mixing of a sample stabilizer within a blood sample and dispense the stabilized sample in a controlled manner. In this manner, a biological fluid collection system of the present disclosure enables blood micro-sample management, e.g., passive mixing with a sample stabilizer and controlled dispensing, for point-of-care and near patient testing applications.

The present disclosure provides microneedle devices and kits for extracting biomarkers from a tissue. The present disclosure provides methods selecting a treatment for an autoimmune disease. The present disclosure also provides methods of nucleic acid analysis to prospectively predict a patient's response to a therapeutic.

Provided is an applicator for attaching, to skin of a user, a medical device including a sensor unit having a sensor of which a portion is to be inserted into the skin of the user and a base unit attached to the skin of the user to be coupled to the sensor unit, the applicator including an applicator body to which the base unit is separably coupled, a locking hook disposed to the applicator body to engage with the base unit, an insertion unit disposed to the applicator body for moving the sensor unit from a first position spaced apart from the base unit to a second position for being coupled to the base unit, and an operation part disposed to the applicator body to be moved by control by the user from a third position to a fourth position for operating the insertion unit, and the locking hook is maintained to be in a fixed mode of engaging with the base unit, in a state in which the operation part is positioned at the third position, and the fixed mode is releasable by an operation of the operation part moving to the fourth position.

Various components of an interventional therapy assembly are disclosed. One such component is a pointer which may be configured to indicate the disposition of another portion or component of the assembly. A rotary indexing device which may be configured to control or facilitate rotation of other components is also disclosed. Further, various components of an elongate instrument having flexible segments and operative segments are also disclosed. In some embodiments, the elongate instrument may comprise a biopsy assembly and may be used in connection with other components of the disclosed assembly.

A flow restriction device may include a housing with first and second end portions forming respective first and second openings, and a cavity configured to receive an insert body defining a fluid passage that extends from a first opening of the housing at the first end portion to a second opening of the housing at the second end portion, where the fluid passage extends in more than one direction along a path between the first and second end portions of the housing to induce a resistance to a fluid flow moving through the device, thereby reducing a flow rate and pressure of the fluid, and where the fluid is blood, reduce the hemolysis index of the blood.

A vein puncture needle is arranged at one end of a needle seat, a bottle inserting end puncture needle is arranged at the other end of the needle seat, a needle tip of the bottle inserting end puncture needle is bent towards the axis direction of the needle tip, a rubber sleeve is sleeved outside the bottle inserting end puncture needle, and a vein puncture needle cap is sleeved outside the vein puncture needle. And an intubation needle cap is sleeved outside the bottle-inserting end puncture needle and the rubber sleeve. The puncture needle has the advantages that the protective rubber sleeve is independently arranged outside the puncture needle at the bottle inserting end, the protective caps are independently arranged outside the vein puncture needle and the puncture needle at the bottle inserting end, the protective caps are used for protecting the sterilized and disinfected double-end needle tube from being polluted, the needle point of the puncture needle at the bottle inserting end is designed to be of an inwards-bent structure, and the puncture needle is convenient to use. In the puncture process of the bottle inserting end, the needle point of the puncture needle at the bottle inserting end can be prevented from penetrating out of the side face of the rubber sleeve to cause blood leakage.

The utility model belongs to the technical field of blood sampling devices, and particularly relates to a physical examination nursing blood sampling device which comprises a first connecting part and a blood sampling container which are movably connected in an inserted mode through a third connecting part. The end part of the first connecting part is provided with an insertion end, the other end of the first connecting part is provided with a blood sampling input end, and the blood sampling input end is communicated with the interior of the first connecting part; a second connecting part is arranged at the top end of the blood sampling container, the third connecting part is in threaded connection with the second connecting part, the first connecting part and the third connecting part are movably connected in an inserted mode and are connected to the end of the second connecting part in a penetrating and inserted mode, a sealing part is arranged in the second connecting part, and the outer side of the sealing part is sleeved with an elastic covering film. And the insertion end is vertically inserted into the surface of the sealing part through threads of the third connecting part and penetrates through the sealing part and the elastic covering film. According to the utility model, the structure of the blood collection tube can be simplified, and the use requirements of sanitation and convenience in operation are met.

The utility model discloses a blood drawing tourniquet automatic tightening device which comprises a base, an inflation structure is installed on one side surface of the base in an embedded mode, a protection structure is installed on one side of the interior of the base in an embedded mode, and a hemostasis structure is fixedly installed in the middle of the upper surface of the base. The hemostasis structure comprises a mounting ring, an annular air bag, a valve and an exhaust pipe, the annular air bag is embedded in the mounting ring, the exhaust pipe is embedded in the surface of one side of the annular air bag, and the valve is embedded in one side of the surface of the exhaust pipe. The base comprises a protective cover, a pull groove, a door plate, a storage box, a partition plate, a sliding groove and a limiting groove, and the pull groove is formed in one side of the upper surface of the storage box. According to the automatic tourniquet tightening device for blood drawing, the air bag can be quickly tightened to stop bleeding in an inflation mode, the arm of a patient can be protected, and cross infection is prevented.

The utility model relates to the technical field of medical instruments, and discloses a blood collection tube fixator which comprises a base, a telescopic rod, an inner rotating disc, an outer rotating disc and a tube support. The length of the telescopic rod is telescopic, and the lower end of the telescopic rod is pivoted with the base; the outer turntable sleeves the outer side of the inner turntable and can rotate around the center of the inner turntable; the tube support is fixedly connected with the outer rotating disc and provided with a tube hole used for insertion of a blood collection tube. According to the special blood vessel blood drawing device, the difficulty of special blood vessel blood drawing is reduced, single-person operation of special blood vessel blood drawing is achieved, manpower resources are saved, and the time for blood drawing of a special blood drawing patient is shortened.

The invention relates to field portable finger blood sampling equipment, which comprises a placement position, a height detection sensor, a disinfection assembly, a puncture assembly and an extrusion assembly, and is characterized in that the puncture assembly comprises a laser puncture device and a displacement part, and the laser puncture device is slidably connected with the displacement part, so that the height of the laser puncture device is adjusted; the placing position is arranged below the laser puncturing device and is used for placing a finger to be sampled; a height detection sensor is arranged above the laser puncturing device and used for detecting the height of the finger, and the height of the laser puncturing device is determined according to the height of the finger; the disinfection assembly comprises an alcohol bottle, a delivery pump and a spray head which are connected with one another, and the spray head can spray alcohol to the placement position for disinfection; the extrusion assembly comprises two movable extrusion heads, the extrusion heads are arranged on the two sides of the placement position correspondingly, and when the two extrusion heads get close to each other, fingers are extruded to bleeding; when the two extrusion heads are away from each other, fingers are relaxed.