702 results about "Blood collection" patented technology

Aspiration catheters for removing clot material from a patient, systems including these catheter as well as methods of making and using these aspiration catheters may be configured to remove clot material in long, continuous strips that prevent release of smaller clot fragments back into the vessel. Also described herein are blood collection apparatuses that may allow safe and easy reperfusion of collected blood.

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 vascular access instrument advancement device may include a housing and an extension tube extending through the housing. The extension tube may extend through the housing. The extension tube may include a first lumen and a second lumen. A blood collection pathway may extend through the first lumen. A wedge may be disposed within the housing and the second lumen of the extension tube. A pair of opposing pinch members may be configured to pinch the extension tube. The pair of opposing pinch members may be disposed within the housing proximal to the wedge and configured to move along the extension tube with the housing. An instrument may extend distally from the wedge. The instrument may be disposed within the second lumen. In response to moving the housing distally along the extension tube, the pair of opposing pinch members push the wedge distally and the instrument is advanced distally.

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.

The invention belongs to the technical field of medical treatment, and particularly relates to a hemoglobin chyle joint detection device and a detection method.The hemoglobin chyle joint detection device comprises a shell, an analysis mechanism is arranged in the shell, and a colorimetric tube is inserted into the upper surface of the shell; the analysis mechanism comprises a light source module, a sample processing module, an optical detection module and a data processing module; the optical detection module synchronously acquires absorbance signals under two wavelengths through double detectors; the data processing module calculates hemoglobin concentration and chyle degree based on the dual wavelength absorbance values. The method is different from traditional single-index detection, two-parameter synchronous analysis of hemoglobin and chyle is achieved for the first time, and the preliminary screening efficiency before blood donation is remarkably improved. By adopting a dual-wavelength correction algorithm, the influence of residual absorption interference of hemoglobin at 580-700nm on chyle index determination is eliminated, and the influence of absorption interference of chyle at 480-570nm on hemoglobin determination is eliminated. The method is suitable for rapid screening on a blood sampling site to realize informatization management of detection data.

The invention belongs to the technical field of medical treatment, and discloses a preparation process for accurately regulating and controlling the component proportion of a blood product. The process comprises the following steps: blood collection and pretreatment; blood components are accurately separated; performing real-time component detection; intelligent regulation and control and closed-loop feedback are realized; and optimizing a finished product and monitoring quality. According to the preparation process capable of accurately regulating and controlling the component proportion of the blood product, by integrating AI intelligent control, microfluid separation, real-time sensor detection, dynamic feedback regulation and control and other technologies, high-precision, automatic and intelligent blending of blood components is achieved. The AI intelligent optimization algorithm is adopted, the composition proportion is dynamically adjusted, and the precision error of a finished product is reduced to be within + / -1% from traditional + / -5%. Intelligent feedback closed-loop control avoids deviation caused by human intervention, and the consistency is improved. In the traditional centrifugal separation, parameters need to be manually adjusted, and the separation efficiency is low, while the micro-fluid centrifugal technology is adopted in the method, efficient separation can be completed within 5-10 minutes, and the overall productivity is improved by 30%-50%.

The invention provides a blood sampling pen convenient to operate. The blood sampling pen comprises a fixed cylinder, a key, a rotary positioning key, an inner cylinder and a blood sampling needle fixing assembly, wherein the key, the rotary positioning key, the inner cylinder and the blood sampling needle fixing assembly are coaxially arranged in the fixed cylinder; the key is arranged on the upper side of the rotary positioning key and is used for driving the rotary positioning key to move downwards; the bottom of the key and the top of the rotary positioning key are meshed and matched and can drive the rotary positioning key to rotate by a certain angle during contact; the blood taking needle fixing assembly is used for mounting a blood taking needle; a needle withdrawing structure is also arranged in the fixed cylinder; one end of the needle withdrawing structure faces the key, and the other end is in sliding connection with the inner cylinder and is aligned with the axis of the blood taking needle; a plurality of groups of push plates are arranged in the rotary positioning key, and a hollow area of each group of push plates forms a cavity; the rotary positioning key is pushed by the key to have multiple working states, and when the rotary positioning key is in a needle withdrawing state, at least one set of push plates abut against one end of the needle withdrawing structure and are used for ejecting out the blood taking needle; the sanitary hidden danger caused by manual needle taking is avoided, and assembling and using are easy.

The invention relates to the technical field of blood sampling chair processing, in particular to a blood sampling chair supporting plate cutting device which comprises a base and guide plates symmetrically and fixedly connected to the top of the base, an electric moving plate is installed between the guide plates, and an electric cutting machine is installed on the electric moving plate. Firstly, a supporting plate is sucked and fixed through an adsorption head, then an electromagnet is started to suck a hollow iron rod in a cutting area to move downwards, the hollow iron rod drives a control valve to rotate by 90 degrees through a rack and a straight gear, the adsorption head stops sucking the supporting plate, and then the adsorption head moves downwards to be disengaged from the supporting plate; the adsorption head does not affect cutting of the electric cutting machine, then the electric cutting machine cuts the supporting plate, the operation is repeated, the adsorption head in the area corresponding to the electric cutting machine can move downwards to be disengaged from the supporting plate, the supporting plate is continuously cut, shutdown adjustment is not needed, operation is convenient, and therefore the cutting efficiency is improved.

The invention belongs to the technical field of biomedical detection, and discloses a Raman spectrum analysis device for quantitative detection of hematologic tumor markers, which comprises a blood collection centrifugal unit with a self-adaptive load regulation mechanism for monitoring blood density and components in real time, centrifugal force and time parameters are automatically adjusted according to the blood density and components; the optical fiber Raman spectrometer is provided with an automatic wavelength calibration system, and an ultrafast laser pulse transmitter and a high-sensitivity photon counting detector are integrated on the optical fiber Raman spectrometer. Raman scattering signals are enhanced by adopting a quantum entanglement light source and a nonlinear optical crystal; according to the invention, the detection capability on low-concentration tumor markers can be obviously improved. Due to the improvement, the device can accurately detect the existence of the tumor marker at the early stage of cancer, and powerful support is provided for early treatment of a patient.

The invention discloses a rapid detection device for diabetic nephropathy patients, and belongs to the technical field of diabetic nephropathy patient detection.The rapid detection device comprises a blood glucose detection assembly, a self-adaptive adjusting mechanism, an extrusion force adjusting structure and an automatic blood taking mechanism, and the self-adaptive adjusting mechanism is arranged on the blood glucose detection assembly; the extrusion force adjusting structure is arranged in the blood glucose detection assembly, the extrusion force adjusting structure is connected with the self-adaptive adjusting mechanism, the extrusion force adjusting structure comprises an adjusting assembly and a reciprocating displacement assembly, and the automatic blood taking mechanism is arranged on the blood glucose detection assembly. By arranging the self-adaptive adjusting mechanism, the extrusion force adjusting structure and the automatic blood taking structure, the extrusion force for assisting the blood taking structure of the person to be detected is self-adaptively adjusted according to different thicknesses of the hands of the person to be detected, and it is ensured that the device can take out sufficient blood for detection; and tissue fluid groups which influence a detection result can be prevented from existing in blood, so that the detection precision of the device is improved.

The invention discloses a sheep blood collection and blood routine and biochemical index intelligent detection system and method, and the system comprises a central control processing unit, and a sheep fixing module, an intelligent blood collection module and a blood detection module which are electrically connected with the central control processing unit. After a sheep to be subjected to blood sampling is mechanically limited and flexibly restrained through the sheep fixing module, the central control processing unit is used for controlling the intelligent blood sampling module to carry out individualized blood sampling, and after blood sampling is completed, the blood detection module is used for carrying out multi-index detection on the collected blood. According to the invention, through a mode of combining the flexible pneumatic air bag and mechanical limitation, accurate and mild constraint is applied to the sheep, automatic and low-stress acquisition of sheep blood is realized, blood routine and biochemical indexes are rapidly detected in combination with multi-parameter analysis, the detection efficiency and data accuracy are improved, and the detection cost is reduced. On-site instant technical support is provided for sheep health monitoring, and the health management level of a large-scale farm is improved.

The utility model discloses a calf blood collection and infusion fixing device which comprises a base, a fixing device, a fixing device and a fixing device, a pull-out excrement collecting plate is arranged in the base, and an excrement leaking plate is fixed at the top end of the base and located above the excrement collecting plate; the fixing fence is fixed to the top end of the base, the rear side face and the front side face of the fixing fence are provided with an inlet and a cattle head fixing assembly respectively, and vertical supporting rods are fixed to the front ends of the left side and the right side of the fixing fence respectively; one end of each guide transverse rod is fixed to the rod wall of the vertical supporting rod, the other end of each guide transverse rod is arranged in a suspended mode, and each guide transverse rod is provided with a plurality of first bolt holes; and the cow rear baffle is connected to the multiple guide transverse rods in a sleeving mode, and first bolts penetrate through the side walls of the cow rear baffle to be fixedly connected with the corresponding first bolt holes in a screwed mode. According to the device, the calf is fixed and limited in the fixing fence through the calf head fixing assembly and the calf rear baffle, so that the situation that the calf moves randomly to affect orderly blood sampling or infusion work is avoided, and breeding personnel are effectively prevented from being hurt by stress behaviors of the calf.

This invention relates to a pipe cutting device, and more particularly to a pipe cutting device for the production of blood collection chairs. The invention provides such a pipe cutting device for the production of blood collection chairs, comprising a base, a support frame, a limiting block, and an electric guide rail. The support frame and electric guide rail are located on the top of the base. The support frame is designed as an inclined surface, and the electric guide rail is located at the bottom end of the support frame. A limiting block is located in the middle of the top of the support frame, and several first connecting rods are located at the bottom of the support frame. The design of the connecting parts and the lifting frame in this invention, during the reciprocating motion of the push rod, not only completes the task of transporting the pipe, but also drives the lifting frame to move with the help of the connecting parts, ensuring the readiness of the pipe for the next cycle. This achieves seamless transportation of the pipe from the supply to the cutting station, improves work efficiency, avoids time delays between processes, and ensures the continuity of production.

The invention discloses an anticoagulant sample agglutination detection device for hemoglobin analysis, and relates to the technical field of biomedical detection.The anticoagulant sample agglutination detection device comprises a machine shell, a blood collection tube and a machine cover rotationally installed on the machine shell, and further comprises a plurality of laser receiving plates rotationally installed on the machine cover and a light blocking cylinder fixedly installed in the machine shell; a support is installed in the machine shell through a damping support, a motor is fixedly installed on the support, a rotating disc is rotatably installed on the support, a storage disc is fixedly installed on the rotating disc, and a plurality of sets of tube frame stations used for storing blood collection tubes are installed on the storage disc. The method has the advantages that the centrifugal light transmittance is adopted to detect the agglutination condition in the blood sample, multiple batches of samples can be detected at a time, the detection efficiency is higher, the detection has higher real-time performance, the detection result is more accurate, the horizontal position of agglutination can be judged, and the type of agglutination can be judged according to the agglutination position.

The invention relates to the technical field of clinical test data acquisition and intelligent quality control, in particular to a clinical test data real-time acquisition and quality control management platform, which is characterized in that an operation starting time recording unit acquires a subject disinfection operation starting timestamp, an operation sequence delay calculation unit calculates actual operation delay based on standard consumed time, and a quality control unit calculates the actual operation delay based on the standard consumed time. The transmission delay processing unit separates transmission and operation delay through double timestamps, the actual collection time determining unit subtracts pure transmission delay time data and operation delay time data from the timestamps uploaded by the device through a reverse time restoration algorithm to obtain actual blood collection completion time, and the time window dynamic judging unit judges whether the time window dynamic judging unit is in real blood collection completion time or not through a dynamic offset boundary. The real time is compared with a preset time window to judge qualification, the physiological index correction unit corrects blood glucose and insulin values in real time through a layered framework and a correction rule base, and the dynamic association logic verification unit adjusts association rules and verifies index logic in combination with a three-dimensional decision matrix, so that support is provided for clinical tests.

The invention discloses an integrated blood sampling container, and aims to solve the problems that traditional blood sampling equipment is low in integration level and inconvenient to use. A three-layer stacked structure is adopted, the lower layer is a box body internally provided with a storage cabinet, the middle layer is an operation table integrating an interaction device, a heat sealing device and a blood sampling mechanism, and the upper layer is a storage assembly capable of being opened and closed. The storage assembly is connected with the box body through a first telescopic assembly, can ascend and descend and is provided with a holding structure and a first switch, a storage bin and a bin cover of the storage assembly are provided with object components, the bin cover can be turned over and is fixed through a positioning assembly, and the positioning assembly is clamped and fixed to a bin cover buckle through a telescopic rod of a second telescopic assembly of the box body. The box body is provided with universal wheels and a second telescopic assembly to facilitate movement, the storage box is provided with a detachable supporting plate, and a table cover above the operation table and a transparent plate guarantee use safety and convenience. According to the design, storage, operation and storage are integrated, the equipment occupied space and the transportation cost are reduced, the moving flexibility is improved, and the device is suitable for various scenes such as outdoor and batch blood sampling.

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.

The utility model discloses a blood detection device. The blood detection device comprises a shell, test paper and a cap, the shell comprises an upper shell and a lower shell which are fixedly connected, a containing cavity is formed between the upper shell and the lower shell, the test paper is located in the containing cavity, a blood sampling head is formed at the front end of the shell, a liquid inlet is formed in the blood sampling head, and the liquid inlet is communicated with the containing cavity through a capillary structure and a premixing cavity in sequence; a hydrophobic coating belt arranged in the left-right direction is arranged on the front cavity wall of the premixing cavity, and an air hole communicated with the containing cavity is formed in the rear end of the shell; the front end of the shell is sleeved with the cap, a liquid storage bag is arranged at the bottom in the cap, and buffer liquid is stored in the liquid storage bag. The blood detection device can realize integration of sample collection and sample treatment, and has the advantages of simple structure, low manufacturing cost, convenience in use, high detection success rate, high detection accuracy and the like.

This invention discloses a blood collection device, relating to the field of medical device technology. The blood collection device includes: a protective shell, the interior of which is hollow to form a receiving chamber; a first opening at one end of the protective shell communicating with the receiving chamber; a second opening on the side wall of the protective shell near the first opening, also communicating with the receiving chamber, and a pressing part at the second opening; a blood collection assembly including: a needle holder, connected to the inner wall of the receiving chamber away from the first opening via an elastic element; a trigger part on the side wall of the needle holder; a blood collection needle disposed on the needle holder with its tip adjacent to the first opening; when the pressing part pushes the trigger part to completely separate from the side wall of the second opening, the accumulated elastic force of the elastic element pushes the tip of the blood collection needle out of the first opening to complete the blood collection operation; when the elastic element returns to its natural state through its own force, the blood collection needle is retracted into the receiving chamber. This reduces pain and the risk of accidental needle pricks, improving the safety and reliability of the blood collection device.

A capillary blood collection device includes a body having an internal chamber. The body generally includes a first end, a second end, and a port located between the first and second ends and providing an inlet / outlet between the first and second ends to the internal chamber. The first end defines an opening into the internal chamber, and the second end of the body opposite the first end is compressible and configured to generate a vacuum upon compression. The port can receive at least one of a lancet device or a collection tube.

The utility model discloses a blood collection card, and belongs to the technical field of body fluid collection cards. Comprising a supporting clamping shell, a PVC bottom plate, a serum collecting pad, a buffering pad, a blood filtering pad and a cell blocking pad, and a mold strip is packaged in the supporting clamping shell; a collection window is arranged on the top surface of one end of the supporting clamping shell; a breaking weak part is arranged at the middle rear part of the supporting clamping shell; the die strip comprises the serum collecting pad which is adhered to the top surface of the PVC bottom plate; one end of the buffer pad is lapped to the top surface of one end of the serum collection pad; the other end of the buffer pad is adhered to the top surface of the PVC bottom plate; one end of the blood filtering pad is lapped to the top surface of one end of the buffer pad; the other end of the blood filtering pad is adhered to the top surface of the PVC bottom plate; one end of the cell blocking pad is lapped to the top surface of one end of the blood filtering pad; the other end of the cell barrier pad is adhered to the top surface of the PVC bottom plate; the blood collection card disclosed by the utility model can be used for separating serum from blood cells, and is suitable for in-vitro detection of serum markers.

The invention discloses an intelligent intensive blood sampling management system based on a GPU, and belongs to the technical field of blood sampling management. The intelligent intensive blood sampling management system based on the GPU comprises a data acquisition unit and a data analysis unit. The problem that efficient management of the intensive blood sampling process is difficult to achieve in the prior art is solved, bar code and two-dimensional code information in the sample image can be rapidly and accurately recognized through the deep learning algorithm based on GPU acceleration, the sample information extraction speed and accuracy are improved, and the efficiency of blood sampling is improved. The trained deep learning model is used for analyzing the sample images, blood types and detection items can be automatically identified, errors caused by manual judgment are effectively avoided, samples are accurately classified according to the analysis result, the sample processing efficiency is improved, an automatic sorting device is accurately controlled according to the classification result, and the sorting efficiency is improved. And the sample test tubes are conveyed to designated positions, so that manual intervention is reduced, and meanwhile, the sorting accuracy and efficiency are improved.

The invention discloses an anti-coagulation blood specimen collection oscillation device, and relates to the technical field of blood collection, and the anti-coagulation blood specimen collection oscillation device comprises a base and a main body forming the device; the movable mechanism is assembled at the upper end of the base and is used for uniformly and automatically oscillating the sample in a reciprocating manner; the locking mechanism is assembled at the upper end of the movable mechanism and is used for generating a trigger signal when the sample main body is inserted in place; according to the anti-coagulation blood sample collection oscillation device, stable positioning of a sample in the treatment process can be ensured through the locking mechanism, displacement caused by vibration or external interference is avoided, the accuracy of an experimental result is ensured, meanwhile, downward pressure is applied to help to correct the position of the sample, deviation caused by the shape of the sample or a non-uniform container is further prevented, and the sampling accuracy is improved. And the sample processing stability is improved.

Methods for the processing and analysis of blood samples obtained with blood collection tubes that reduce contamination of cfDNA by genomic DNA but that inhibit digestion by methylation-sensitive and / or methylation-dependent restriction enzymes.

The invention discloses a label positioning method and device for a medical tube and a blood collecting vehicle, a label is attached to the outer wall of the medical tube around a rotating shaft, and the method comprises the steps that when the medical tube rotates around the rotating shaft, multiple frames of original images of the medical tube are obtained; performing light intensity change detection on the multiple frames of original images; when the frame number of the original image with the light intensity larger than the first threshold value meets a preset range, the corresponding type of the label of the medical tube is obtained; performing image preprocessing on the multiple frames of original images to obtain multiple frames of target images; performing linear fitting operation on the multiple frames of target images to obtain the edge number of the multiple frames of target images; and when the number of the edges changes, obtaining positioning information of the label according to the label type. On the basis of different types of original labels, the label edges of the original labels can be positioned at the moment when the set edge number changes, so that secondary labeling is facilitated, and the label positioning method is suitable for edge searching positioning of transparent or semitransparent original labels.

The invention provides a field portable emergency blood sampling device, and relates to the technical field of medical equipment. The field portable emergency blood sampling device comprises a box body, a blood sampling table, a blood sampling module, a detection module, a blood pretreatment module and a blood storage bin, a box cover is rotationally connected to one side of the upper end of the box body, a storage battery is arranged on the inner end face of the box cover, and two solar panels are arranged on the outer end face of the box cover; a semiconductor temperature difference refrigerating and heating module, a high-precision temperature sensor and an intelligent temperature control chip are arranged on the end face of one side of the blood storage bin. According to the invention, through the integrated and modular design, the functions of blood collection, detection, pretreatment and storage are integrated, and the folding structure and the multi-energy power supply system are utilized, so that the high automation, portability and autonomy of field emergency blood collection operation are realized, the treatment time is effectively shortened, and the rescue efficiency and the blood guarantee capability are remarkably improved.

The present invention discloses a lancing pen packaging machine, comprising a cabinet, on which an unwinding mechanism, a coding mechanism, a punching mechanism, a V-shaped folding mechanism, a preliminary heat-sealing mechanism, an instruction manual loading mechanism, a lancing pen loading mechanism, a heat-sealing mechanism, a traction guide mechanism and a cutting mechanism are sequentially arranged according to a processing flow. The unwinding mechanism unwinds the plastic film in an orderly manner through an unwinding motor in cooperation with a tensioning component. The V-shaped folding mechanism folds the flat plastic film into a V shape. The preliminary heat-sealing mechanism performs vertical heat sealing to form packaging cavities section by section. The instruction manual loading mechanism loads the instruction manual into each packaging cavity. The lancing pen loading mechanism loads the lancing pen into the packaging cavity one by one. The heat-sealing mechanism performs overall heat-plastic sealing on all sides of the packaging cavity to form a complete package. The cutting mechanism cuts the continuously packaged lancing pens into independent products.

The present invention provides an automatic needle-changing multi-needle blood collection pen, comprising a fixed cylinder, a needle-extraction drive structure, a depth adjustment component and a multi-needle fixed component. The bottom of the fixed cylinder is fixedly engaged with the depth adjustment component, the needle-extraction drive structure and the multi-needle fixed component are installed inside the fixed cylinder, and the top of the needle-extraction drive structure is arranged to pass through the fixed cylinder. A plurality of blood collection needles are arranged in the multi-needle fixed component, and a drive rod for driving the blood collection needle to move up and down is arranged in the needle-extraction drive structure, so as to facilitate pressing the blood collection needle to perform blood collection. The multi-needle fixed component of the multi-head blood collection pen of the present invention is provided with a plurality of blood collection needles, which can be used in sequence, thereby increasing the number of uses, reducing the replacement frequency, and improving the efficiency of blood collection work; its needle-extraction drive structure automatically replaces the blood collection needle when returning from blood collection use without the need for manual replacement, thereby improving work efficiency.