161 results about "Blood draws" patented technology

Methods, systems, and kits for extracorporeally circulating and processing blood are described. The systems include a pump, a processing unit, and blood drawn return lines for accessing a patient's vasculature. Blood flow through the return line is measured and pump speed controlled to maintain a desired blood flow rate. Alarm conditions can be initiated when expected pump performance differs from that needed to maintain the control point flow rate. By using a ultrasonic flow detector, gas bubbles in the blood flow can be detected.

An integrated patient monitoring and control system is provided which includes a sample set, the sample set being adapted for coupling to the patient to obtain a specimen from the patient, a sensor, the sensor being adapted to receive the specimen from the sample set and to analyze the sample, a medication control unit, the medication control unit receiving information from the sensor, and utilizing that information to determine medication dosing information for the patient, and a medication administration system, the medication administration system receiving the dosing information from the medication control unit, and adapted to cause administration of the medication to the patient. If the sample set is adapted for blood draw, the system advantageously is performed in conjunction with a pneumatic pressure cuff, inflated so as to aid in blood draw.

A transilluminator device for use with neonatal patients, which includes a power housing for providing power to the unit; a flexible cord, extending from the housing, and terminating in a small container for housing LED's; a plurality of red and white LED's containing the smaller housing, which are illuminated when power is provided to the LED's; the small housing positionable in the hands of a person, so that when a neonatal patient is placed in the person's hand the LED's will illuminate that portion of the neonatal person such as the arm, leg or other part of the anatomy in order to determine whether or not the physical conditions are normal or abnormal and to locate suitable veins for blood draws and IV therapy in an infant.

Improvements in blood collection and testing. In one aspect, an improved method of manufacturing a blood collection tube, particularly illustrated for use in sedimentation rate testing, including providing an elongated glass tube with an open first end for receiving a venipuncture blood sample of at least 1 ml, formed with a closed end opposite the first end; and applying to a substantial portion of the receptacle a containment barrier. The improvements also pertain to resulting blood collection tubes, additives for blood collection tubes that permit reliable sedimentation test data after 8 hours from the blood draw, and methods of administering health care using the aforenoted tubes, additives or both.

Low-level laser therapy is applied externally through the skin of the patient to targeted areas of a of a patient's body to treat diabetes or prediabetes. A patient is first diagnosed with diabetes or prediabetes, preferably by blood draws that measure insulin, A1C, or glucose levels. A therapeutic amount of laser energy to apply is determined from a patient's biological factors such as body mass index. The therapeutic amount of laser energy is applied one or more times over a two week time period. The patient is then retested for diabetes or prediabetes. If necessary, a new therapeutic amount of laser energy is determined according to any changes in the patient's diabetes or prediabetes diagnosis and any changes in the patient's biological factors. Adjusted treatments with low-level laser energy continue until the diabetes or prediabetes diagnosis is removed.

Improvements in blood collection and testing. In one aspect, an improved method of manufacturing a blood collection tube, particularly illustrated for use in sedimentation rate testing, including providing an elongated glass tube with an open first end for receiving a venipuncture blood sample of at least 1 ml, formed with a closed end opposite the first end; and applying to a substantial portion of the receptacle a containment barrier. The improvements also pertain to resulting blood collection tubes, additives for blood collection tubes that permit reliable sedimentation test data after 8 hours from the blood draw, and methods of administering health care using the aforenoted tubes, additives or both.

An infusion and blood collection device allows clean blood collections into a collection tube via a previously installed angiocatheter without interrupting the administration of intravenous therapies after initial installation. The device optionally includes passive control of the blood collection flow rate to prevent contamination of the collected blood draw with the IV therapy fluid being simultaneously infused through the angiocatheter. A blood collection method uses an infusion and blood collection device to draw a clean blood sample from a patient and into a collection tube via a previously installed angiocatheter without interrupting the administration of intravenous therapies.

A blood drawing system including a closeable first conduit through which drawn blood can flow; a first pressurizeable collection vessel for receiving blood therein; a hollow-shaft member; a second conduit leading from the first conduit to the first collection vessel; and a third conduit leading from the first conduit to the hollow shaft member connectable to a negative-pressure second collection vessel. Closing the first conduit allows blood transfer from the first vessel into the second vessel without exposure to or inclusion of any external devices to accomplish such transfer. Also included is an intravenous system with a conduit through which medicament liquid can be delivered and from which medicament liquid-free blood can be withdrawn. A first pressurizeable vessel first removes and conserves for reintroduction residual medicament liquid from the conduit, while thereafter a second negative-pressure vessel draws subsequent medicament liquid-free blood from the conduit.

A blood processing system for collecting and exchanging blood components includes a venous-access device for drawing whole blood from a subject and returning blood components to the subject. The system may also include three lines connecting the venous access device to a blood component separation device and an anticoagulant source. A blood draw line fluidly connects to the venous-access device to the blood component separation device. An anticoagulant line connected to an anticoagulant source, introduces anticoagulant into the drawn whole blood. A return line, fluidly connected to the venous-access device and the blood component separation device, and returns uncollected blood component to the subject. A draw pump, an anticoagulant pump, and a return pump, respectively control the flows through the draw line, anticoagulant line, and the return line. The blood component separation device separates the drawn blood into a first blood component and a second blood component. The blood component separation device also may be configured to send the first blood component to a first blood component bag.

An infusion and blood collection device allows clean blood collections into a collection tube via a previously installed angiocatheter without interrupting the administration of intravenous therapies after initial installation. The device optionally includes passive control of the blood collection flow rate to prevent contamination of the collected blood draw with the IV therapy fluid being simultaneously infused through the angiocatheter. A blood collection method uses an infusion and blood collection device to draw a clean blood sample from a patient and into a collection tube via a previously installed angiocatheter without interrupting the administration of intravenous therapies.

Apparatus and method for non-invasively determining the level of a constituent of a patient's blood drawn though an elastomeric tubing to a dialysis machine deforms the tubing in the slot of a measuring head having two points of different transverse length with a transmit / receive sensor at each point that transmits a signal through the tubing and the blood and is reflected back to it from the tubing internal wall. The round trip transit time of the signal at each sensor is measured and the blood sound velocity is calculated from the two round trip transit times and the differential of the transverse lengths at the two points. Blood hematocrit level, which is related to blood volume, is calculated from the calculated sound velocity and an empirical relationship.

Enables cleaning a user's target area around a vein, starting an intravenous catheter placement into a user's vein, drawing blood from a vein, transferring the blood into one or more test tubes and labeling the test tubes. Includes a housing configured to enable a user to fit their arm into the apparatus, a blood pressure cuff, a scanner, a computer system, one or more needles, test tubes and labels. The scanner may scan the user's arm for target veins. Uses an antiseptic solution or antiseptic pads to wipe down a target area, such that a selected needle of appropriate size is lowered and inserted into the targeted vein to draw blood. Embodiments may lower and fill the test tube with the user's drawn blood, label the test tubes with the user's information and dispose the needle into a biohazard removable container.

A blood reservoir being capable of reducing damage to blood stored therein. The blood reservoir has a housing in the form of a box, and filtering and defoaming devices provided in the housing, i.e., a device for filtering and defoaming on blood suctioned from a surgical field (outside a heart), a device for filtering and defoaming on blood vented from the interior of the heart, and a device for filtering and defoaming on blood drawn off from a large vein. The vented blood flowing into the blood reservoir passes through a vented blood filtering member to be introduced into a blood storage space without contacting an antifoaming agent and foreign substances filtered off from the suctioned blood.

The invention discloses a blood drawing auxiliary device for departments of hematopathology and a method for applying the blood drawing auxiliary device. The blood drawing auxiliary device comprises atank. The front end surface and the rear end surface of the tank are communicated with each other, a second line roller is fixedly connected with the rear end surface of a first line roller, a thirdline roller is fixedly connected with the side, which is far away from the first line roller, of the second line roller, a rotary rod is fixedly connected with a certain side of each of the first lineroller and the third line roller, the certain side of the first line roller and the certain side of the third line roller are far away from the second line roller, the two rotary rods are positionedat the same horizontal altitude, a support plate is movably connected with the end, which is far away from the second line roller, of each rotary rod and is fixedly connected to the top of the tank, aflat spiral spring is arranged on a certain side of each of the first line roller and the third line roller, the certain side of the first line roller and the certain side of the third line roller are far away from the second line roller, the top of the end, which is far away from a pedal, of a third rope penetrates the top of the tank, and the third rope is wound on the third line roller. The blood drawing auxiliary device for the departments of hematopathology and the method have the advantages of high efficiency, simplicity in operation and the like.

The invention relates to an extraction method of mouse platelet. Blood drawn from orbita vein of mouse is placed into an anticoagulation centrifugal tube, centrifugated at the speed of 800rmp for 10min after standing for 30min, and the extracted supernatant fluid is plasma rich in platelet. The supernatant fluid is placed in a clean test tube and centrifugated at the speed of 3500rpm for 10min. After filtering the supernatant fluid, the sediments at the bottom of the tube are the platelets. 50ul to 100ul of ammonium oxalate solution with a mass concentration of 1 percent is added into the test tube and slightly stirred with a glass rod, and then 2ml to 3ml of ammonium oxalate solution with a mass concentration of 1 percent is added, and stood for 5min, to make sure the hematid is dissolved; the hematid is centrifugated at the speed of 3500rpm for 10min, after the supernatant fluid is abandoned, the test tube is added with a few platelet scrub solution and blown and beaten to turn the platelet into a platelet suspension. The suspension is centrifugated at the speed of 3300rpm for 10min, removed the supernatant in the suspension, the test tube is added with a few platelet scrub solution and blown and beaten to turn the platelet into a platelet suspension. The platelet is used as an antigen to immunify guinea pigs, and the serum of such guines pigs is injected into the mouse to prepare allergic purpura. The preparation method has simple operation, can obtain high concentration platelet, and can comparatively better solve the problem of impure platelet.

Embodiments of the present invention provide a topical anesthetic and antiseptic dispensing device article of manufacture. In an embodiment of the invention, the article of manufacture includes a penetrating instrument including an elongated body with first and second distal end such that at least one of the distal ends includes a penetrating edge. By way of example, the penetrating instrument can be a syringe, an IV catheter needle assembly, a pressurized tube holder configured with a needle for blood draw, or a scalpel, to name a few possibilities. The article of manufacture further includes an attachment connector to couple the container to the housing of the penetrating instrument, where the attachment connector includes a circular connector body and a connector arm, the connector arm affixed to a spray housing of the dispensing device. The container provides at least one chamber. Finally, the article of manufacture includes a nozzle connected to the container and configured to dispense pressurized content of the container responsive to activating a trigger assembly communicating with the nozzle.

The present disclosure relates to methods and devices for amplifying a plurality of targets in a single PCR run while distinguishing between clinically relevant amplification and amplification from other sources such as from background contamination. The methods and devices further enable discrimination between gram-positive, gram-negative and fungal infections as wells as identify antimicrobial resistance genes. When applying the methods and devices of the invention, the species or genus of an infection(s), and genus of a fungal co-infection(s) or category of bacterial (gram-positive or negative) co-infection(s) are identified. Species identification of co-infections can also be achieved. Further, when applying the methods and devices of the invention, organisms which are likely to be contaminating organisms from a blood draw are identified.

The present invention provides a blood parameter sensing system that may include a sensor, a blood access system, a flow controller and a monitor system. The blood access system may include a blood draw member having an internal configuration adapted to avoid clotting without the use of anticoagulants and under a range of flow profiles, including small volume blood draws. The flow controller may be configured to adapt to a range of access devices by using feedback from the sensor and monitor to customize flow profiles. The monitor system is configured to reduce parameter measurement error by modeling sensitivity change during system startup or reconnect.

A method of diagnosing severe sepsis prior to definitive clinical diagnosis. A pattern of gene expression that correlates strongly with a future diagnosis of severe sepsis and organ failure was identified in patients who had their blood drawn at first clinical presentation. The methods comprise identifying a pattern of two or more polynucleotides, whereby the altered expression of these polynucleotides correlates with prospective and actual sepsis. Also methods of identifying agents for treating sepsis based on the characteristics of this gene expression pattern are provided.

Disclosed is a medical system for displaying and recording injection sites of patients. After patient identification based on the patient's vein patterns, the system can retrieve and display previous injection sites (e.g., for blood draw or injection) of the patient as overlaid at actual positions of the injection sites. The system can determine potential new injection sites based on the locations of the previous injection sites. The system can also ensure workflow compliance by displaying and tracking procedures performed by the healthcare professional.

A blood purification device for purifying blood drawn from a body and then returning the blood into the body, including: a pump provided midway along a fluid path through which blood or a dialysis fluid flows; a valve that is provided midway along the fluid path and closes or opens a part of the fluid path; and a control unit that causes a blood purification process of passing the blood or the dialysis fluid through the fluid path for blood purification, a priming process of driving the pump and the valve to supply a priming fluid to the fluid path before the blood purification processing, and a pressure reduction process of reducing pressure in a gap in the fluid path to a negative pressure state before supply of the priming fluid.

The invention relates to an automatic skin disinfection pen used before blood drawing in hematology department and a using method thereof. The pen comprises a shell, a feeding port and a material passing port are formed in the upper surface and the lower surface of a box body correspondingly, the caliber of the feeding port is larger than that of the material passing port, a push block is fixedlyconnected to the side face of the box body, and a sliding groove allowing the push block to penetrate out and slide is formed in the side face of the shell; wherein a material conveying mechanism is used for conveying materials into the box body, the material conveying mechanism is controlled by the swing process of the swing shaft, a liquid spraying mechanism is used for spraying disinfectant into the box body, when the box body vertically moves downwards and the pressing plate transversely moves in the direction away from the push block, the liquid spraying mechanism can spray liquid, and afixing mechanism is used for fixing cotton balls. A user only needs to add batched cotton balls into the storage cavity at a time and then pushes the push block back and forth up and down once, the effects of quantitatively taking the cotton balls, soaking the cotton balls in disinfectant and automatically discharging can be automatically achieved, and use is more convenient and faster.

The present disclosure relates to methods and devices for amplifying a plurality of targets in a single PCR run while distinguishing between clinically relevant amplification and amplification from other sources such as from background contamination. The methods and devices further enable discrimination between gram-positive, gram-negative and fungal infections as wells as identify antimicrobial resistance genes. When applying the methods and devices of the invention, the species or genus of an infection(s), and genus of a fungal co-infection(s) or category of bacterial (gram-positive or negative) co-infection(s) are identified. Species identification of co-infections can also be achieved. Further, when applying the methods and devices of the invention, organisms which are likely to be contaminating organisms from a blood draw are identified.

The invention provides an animal serum collecting test tube and a serum separator, and relates to the technical field of animal serum collection. The animal serum collecting test tube comprises a vacuum collecting tube, a needle assembly and a filter tube, wherein the needle assembly is arranged at the opening of the top of the vacuum collecting tube and is detachably connected with the vacuum collecting tube. The filter tube is arranged in the vacuum collecting tube, and the blood inlet of the filter tube is connected with the needle assembly to receive the blood drawn from the needle assembly, and micro pores for passing serum are formed in the filter tube. It is not necessary to carry out second time transfer of serum samples when the serum samples are collected by the animal serum collecting test tube, the process of collection and detection of the serum samples is simplified, and the probability that the serum samples are contaminated can be reduced.

The invention relates to a venous-thrombus aspiration device and an aspiration system using the same. The venous-thrombus aspiration device comprises a catheter. An aspiration tube is arranged inside the catheter. The outer wall of the aspiration tube and the inner wall of the catheter form a cavity. The cavity is connected with a liquid injection tube provided with a first valve. A connector is disposed at one end of the catheter, and a compliance balloon is disposed at the other end of the catheter. The compliance balloon communicates with the cavity through a lateral hole in the wall of the catheter. The aspiration system comprises the venous-thrombus aspiration device, a thrombus filtering and returning device and a negative pressure device which are sequentially connected. The venous-thrombus aspiration device and the aspiration system have the advantages that the limitation of an excessively small thrombus discharging port is overcome, blood drawn out can be recycled at the same time, vein blood vessel damage is prevented during aspiration, and the whole aspiration operation has continuous and quantifiable negative pressure.

The invention relates to chairs and particularly relates to a blood drawing assisting chair for medical pediatrics. A technical problem to be solved by the invention is to provide the blood drawing assisting chair for the medical pediatrics. The blood drawing assisting chair for the medical pediatrics is used for assisting doctors to fix an arm of a child to facilitate blood drawing. In order to solve the above-mentioned technical problem, the blood drawing assisting chair for the medical pediatrics, provided by the invention, comprises a child's chair, a bottom plate, a supporting plate, a fixing component, a driving component and a flapping component, wherein a supporting board is connected onto the child's chair; the bottom plate is connected onto the child's chair; the supporting plateis connected onto the supporting board; the fixing component is connected onto the child's chair; the driving component is connected to the bottom plate; and the flapping component is rotatably connected to the supporting plate. According to the blood drawing assisting chair for the medical pediatrics, through matching the fixing component, the driving component and the flapping component, the arm of the child is fixed, and then, a position required to suffer from blood drawing is flapped.

The invention provides a circulating tumor cell detection method based on immunomagnetic beads and flow cytometry. The method comprises the following steps: performing puncture blood drawing on peripheral blood, performing blood cell re-suspending on blood, removing most of the red blood cells, and adding CD326 magnetic beads for separating; performing primary flow cytometry sorting, removing mostof the lymphocytes, performing secondary flow cytometry sorting, removing the total lymphocytes; and finally performing the third flow cytometry sorting on residual cells, namely detecting whether circulating tumor cells exist. The method disclosed by the invention is simple, easy to operate and high in detection sensitivity.

The present invention discloses a blood drawing device for collecting blood samples. The blood drawing device comprises a barrel body, an upper end and a lower end of the barrel body are respectivelyfixedly connected with an upper blocking cap and a lower blocking cap, an upper surface of the upper blocking cap is fixedly connected with a flow distribution block, a flow distribution cavity is formed in the flow distribution block, a blood inlet of the flow distribution cavity is movably connected with a first hose, each blood outlet of the flow distribution cavity is movably connected with athird hose, lower ends of the third hoses penetrate through a side wall of the upper blocking cap, extend into chamber cavities and are fixedly connected with puncture needles, lower ends of the puncture needles movably insert into blood collecting tubes, a plurality of sliding grooves are formed in an inside of the upper blocking cap, and flow stop rods are slidably connected in the sliding grooves. Processes of pulling out a drainage device and replacing the drainage device after blood collection of the blood collecting tubes are eliminated, a risk of frequent contact of an end part of the blood collection device with air is avoided, and the blood drawing device prevents occurrence of blood contamination problems and improves accuracy of blood testing.