550 results about "Blood sampling" patented technology

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 utility model provides a blood sampling device, which comprises a vacuum blood sampling assembly, a blood sampling assembly and a blood sampling assembly, the vacuum blood sampling assembly comprises a vacuum blood sampling tube and a piston, one end of the vacuum blood sampling tube is provided with a blood sampling opening part, the piston is positioned in the blood sampling opening part, the piston is hermetically connected with the inner wall of the vacuum blood sampling tube, and the piston can move in the vacuum blood sampling tube; the transfer assembly comprises a boosting tube and a driving needle, the driving needle is located in the boosting tube, one end of the driving needle is provided with a needle head, the other end of the driving needle is provided with a connector, the needle head is communicated with the connector, and the needle head can penetrate through the piston and then is communicated with the interior of the vacuum blood collection tube. Due to the fact that the blood collecting device is provided with the vacuum blood collecting assembly and the transferring assembly, after the vacuum blood collecting assembly is used for collecting blood, the blood collected by the vacuum blood collecting assembly can be transferred into other containers through the transferring assembly, a piston in the vacuum blood collecting tube does not need to be opened in the transferring process, blood leakage is avoided, and the blood collecting efficiency is improved. And the risk that blood is polluted is reduced.

The invention provides a GelMA microneedle patch loaded with chromogenic gold nano bipyramids and a preparation method thereof.The method comprises the steps that citric acid, chloroauric acid and a CTAC solution are mixed, then sodium borohydride is added, and a seed solution is obtained through stirring and standing; mixing chloroauric acid, silver nitrate, hydrochloric acid and CTAB (cetyltrimethyl ammonium bromide), and sequentially adding ascorbic acid and the seed solution to obtain a growth solution; carrying out centrifugation, morphology regulation and chemical etching purification to obtain a chromogenic gold nano bipyramid solution; the preparation method comprises the following steps: reacting gelatin with methacrylic anhydride in PBS, dialyzing and freeze-drying to obtain GelMA; dissolving GelMA in the gold nanoparticle bipyramid solution, and adding a photoinitiator LAP to obtain a mixed precursor solution; and the GelMA microneedle patch loaded with the gold nano bipyramid is prepared through mold casting, centrifugation, ultraviolet light crosslinking and drying demolding. The microneedle extraction and gold nano bipyramid color development integrated scheme is initiated, blood sampling is not needed, the dermis interstitial fluid is extracted in a minimally invasive mode through the microneedle, detection pain and trauma are reduced, the cross infection risk of blood treatment is avoided, and the microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle microneedle

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.

The invention relates to the field of drug concentration detection, in particular to a rapid tacrolimus drug concentration detection device based on a micro-fluidic chip. The detection device comprises a blood sampling area, a separation area, a liquid medicine storage area, a waste liquid storage area and a spectrograph, the separation area is used for separating a tacrolimus medicine in a blood sample solution, and a liquid medicine sample and a waste liquid sample are obtained; the spectrograph is used for collecting liquid medicine spectral data of the liquid medicine sample in the liquid medicine storage area and waste liquid spectral data of the waste liquid sample in the waste liquid storage area, and detecting the concentration of the tacrolimus medicine in the blood sample solution according to the liquid medicine spectral data and the waste liquid spectral data. According to the invention, the accuracy of detecting the concentration of the tacrolimus drug in the blood can be improved.

The utility model discloses a rat thrombus forming device which comprises a blood collecting assembly and a thrombus forming assembly, the blood collecting assembly is used for collecting blood of a rat, and the blood collected by the blood collecting assembly is conveyed to the thrombus forming assembly to prepare thrombus; the blood sampling assembly comprises a bottom plate and a top plate, the top plate is located over the bottom plate, a vertical supporting rod is connected between the center of the bottom plate and the center of the top plate, the top plate can rotate around the supporting rod, a plurality of round holes are formed in the top plate in the annular direction, and blood collecting pipes are vertically placed in the round holes; a liquid outlet is formed in the bottom of the blood collecting pipe, a blood transfer pipe is connected to the liquid outlet, and the head end of the blood transfer pipe extends to the thrombus forming assembly; the thrombus forming assembly comprises a rectangular forming groove, a forming template made of rubber is fixed to the bottom of the forming groove, pits with honeycomb holes are densely distributed in the forming template, the diameter of each pit is 2-3 mm, and the depth of each pit is 2-3 mm.

A wrist auxiliary blood sampling device comprises a support which comprises a base, a mounting part and a supporting part, the base is provided with a positioning part used for placing the wrist of a patient, and the mounting part is provided with a laser indicating device used for projecting laser towards the wrist of the patient; the pulsation sensing assembly comprises a pressure sensor, and the pressure sensor is used for being in contact with the wrist of the patient so as to collect arterial pulsation intensity information of different positions of the wrist of the patient; the pulsation sensing assembly is arranged on the base and located on one side of the positioning part, and the pulsation sensing assembly is movably connected with the base; the control module is in electric signal connection with the pressure sensor and the laser indicating device; the control module is used for controlling the laser indicating device to project laser to the strongest arterial pulse point according to arterial pulse intensity information, collected by the pressure sensor, of the wrist of the patient. The auxiliary wrist blood sampling device can ensure the accuracy, reliability and convenience of artery blood sampling and improve the efficiency of artery blood sampling.

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.

The utility model provides a portable blood sampling practice teaching aid which comprises an arm model, a liquid supply assembly and a recovery assembly, and the top of the arm model is provided with a simulation blood vessel detachably connected with the liquid supply assembly and the recovery assembly. The top of the arm model is movably provided with a plurality of fixing assemblies used for fixing the simulated blood vessel, the arm model comprises a first simulation part and a second simulation part, and the bottom of the first simulation part and the bottom of the second simulation part are fixedly connected with a first base and a second base respectively. By arranging the fixing assembly and the groove, the simulated blood vessel can be placed in the groove during use, then the fixing assembly is installed on the arm model to fix the simulated blood vessel, and when the simulated blood vessel needs to be replaced, the simulated blood vessel can be taken down by taking down the fixing assembly, so that the simulated blood vessel can be conveniently replaced; the use is more flexible and convenient.

The invention belongs to the technical field of medical detection equipment, and particularly relates to a household portable blood sugar and uric acid two-in-one human body detection device which comprises a detector shell. A display screen and a detector body are installed on the top and one side of the inner wall of the detector shell respectively, test paper is connected to one side wall of the detector body, a blood sampling pen is connected to one side wall of the detector shell in a magnetic adsorption mode, and an auxiliary assembly used for promoting blood circulation of the hand is further embedded in the inner wall of the detector shell. After the blood sampling pen is magnetically separated from the detector shell, one end of the blood sampling pen punctures the finger of a detected person, so that the detected person conveniently drips blood generated by the punctured finger onto the test paper, and after the test paper is in contact with the detector body, the blood of the detected person is analyzed; the analyzed blood glucose value and uric acid value of the detected person are displayed through the display screen, and the purpose of blood glucose and uric acid two-in-one detection is achieved.

The application discloses a blood sampling test tube rack and treatment tray combined device, and belongs to the treatment tray field. The device comprises a tray body, a first treatment rack movably arranged on the tray body, a plurality of first placing grooves arranged on the first treatment rack, a second treatment rack hingedly arranged on the tray body, a plurality of second placing grooves arranged on the second treatment rack, a first hinged plate hingedly connected with the second treatment rack, a second hinged plate hingedly connected with the first hinged plate, a lapping block fixedly connected with the tray body and corresponding to the second hinged plate, a clamping groove arranged on the second hinged plate, a clamping assembly arranged on the lapping block and corresponding to the clamping groove, and a through hole arranged on the second treatment rack and corresponding to the lapping block and the clamping assembly. The bottom of the tray body is provided with a connecting assembly corresponding to the second hinged plate. The application has the beneficial effect of providing a blood sampling test tube rack and treatment tray combined device.

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 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 utility model relates to a blood drawing fixing device for animal epidemic diseases. The blood drawing fixing device comprises a working table, a first through hole and a fixing part, wherein the working table is used for supporting an animal suffering from the epidemic diseases; the first through hole is formed in the working table and used for allowing one leg of the animal to penetrate through; due to the adoption of the technical scheme, when the blood drawing fixing device for the animal epidemic disease is used, the animal can be fixed without being pressed by manpower, and manpower can be saved.

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.

The application discloses a data security encryption method for an intelligent blood sampling management platform, relates to the technical field of data security encryption, and comprises the following steps: generating an information security key for the intelligent blood sampling management platform, and the information security key can be periodically changed; extracting a flow sequence code through the security key; and performing safe encryption on platform data through the information security key, wherein the safe encryption comprises different encryption processes, and the encryption processes are arranged and combined differently through the flow sequence code; the application is used to solve the problem that the existing data security encryption technology has a fixed and single encryption algorithm, which leads to a large security loophole in data security protection and cannot guarantee the security of data.

The utility model belongs to the field of blood sampling and positioning for animal experiments, particularly relates to blood sampling and positioning equipment, and aims to solve the problems that although the neck of an animal can be clamped through a clamping block in use in the prior art, the clamping pressure cannot be detected in the clamping process, and discomfort or injury is easily caused when the animal is fixed. The device comprises a base, a frame body is welded to the top of the base, the frame body is in a U shape, moving grooves are formed in the inner walls of the two sides of the frame body, the inner walls of the two moving grooves are slidably connected with the same frame body, and a second concave plate is fixedly arranged on the inner wall of one side of the frame body; the inner wall of the top and the inner wall of the bottom of the frame body are slidably connected with the same first concave plate, the neck of an animal can be clamped through the clamping mechanism, the height of the clamping block can be adjusted through the adjusting mechanism, and the clamping force of the clamping block is detected through the detection mechanism, so that unnecessary damage to the animal is avoided.

The invention discloses blood component single sampling equipment capable of monitoring in real time in the field of blood treatment equipment. The equipment comprises a blood sampling module, a centrifugal separation module, a component collection module and an anticoagulant conveying module, and further integrates a multi-dimensional real-time monitoring system and a closed-loop self-adaptive regulation and control module. The multi-dimensional real-time monitoring system comprises an online micro-fluidic component detection unit, a physiological parameter monitoring unit and an equipment operation monitoring unit, can realize real-time online detection of blood component purity, cell activity and pollutant residue in the separation process, and synchronously monitors circulation physiological parameters of a blood donor and an equipment operation state at the same time; the closed-loop self-adaptive regulation and control module can dynamically adjust parameters such as the centrifugal rotating speed, the fluid pump speed and the anticoagulant ratio according to real-time monitoring data, and precise closed-loop control over the separation process is achieved. The quality stability of blood single-sampling components can be remarkably improved, meanwhile, the operation risk is greatly reduced, and the method is suitable for clinical blood component single-sampling and preparation scenes.

The utility model relates to the technical field of hemostix equipment, in particular to a leakproof hemostix which comprises a blood sampling mechanism, the right side of the blood sampling mechanism is movably connected with the left side of a connecting mechanism in a clamped mode, and the outer wall of the connecting mechanism is movably connected with the inner wall of one end of a fixing mechanism in a clamped mode. The fixing mechanism comprises a fixing mounting pipe, a fixing base, a fixing pipe and a feeding threaded pipe, the right side of the fixing mechanism is fixedly connected with the left side of the blood collecting mechanism, the blood collecting mechanism is composed of a blood collecting pipe, a blood collecting fixing plate, a blood collecting rebounding pipe, a blood collecting rebounding groove and a rebounding spring, and the fixing mounting pipe is rotated to fix the blood collecting pipe. The rotating fixed mounting pipe drives the fixed mounting pipe to linearly move in the fixed base under the action of threads, the linearly moving fixed mounting pipe drives the feeding threaded pipe to linearly move, the feeding threaded pipe linearly moves to penetrate into the blood collection pipe to drive the locking plate to linearly move, and the locking plate linearly moves to movably abut against the inner wall of the blood collection pipe. And blood collected in the blood collection tube can be prevented from leaking.

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

The application discloses a snake and insect bite venom diffusion prevention emergency equipment based on a field environment and belongs to the technical field of outdoor rescue equipment, which comprises a bandage assembly, a mounting seat and a blood sampling assembly. The bandage assembly comprises a bandage and air bags arranged on the lower surface of the bandage. The mounting seat is arranged at the middle part of the bandage and between the two groups of air bags. The blood sampling assembly is detachably mounted in the mounting seat. The mounting seat is provided with movable pressure adjusting mechanisms on both sides. The blood sampling assembly has an arc-shaped blood sampling pipeline. Through the cooperation of the pressure adjusting mechanisms and the driving mechanisms, the dynamic adjustment of the air bag pressure is realized, and the tissue damage caused by the continuous high pressure is avoided. The traditional bundling method cannot adjust the pressure in real time. Through the linkage of the motor driving protrusions and the push plates, the periodic change of the pressure is realized, the venom diffusion is effectively controlled, and the local blood circulation is ensured to be smooth.

This utility model relates to the field of blood sampling technology, specifically to a medical blood sampling device, comprising: a base plate, on which a support frame is fixedly mounted; and a driving assembly, which includes a rotating wheel disposed above the base plate and on one side of the support frame, with multiple collection cylinders slidably mounted in a circumferential array inside the rotating wheel. Through the design of the collection assembly, during blood sampling after a patient's finger is punctured, a rubber column can be used to squeeze and rub the sides of the fingertip, accelerating the flow of blood from the puncture point and dripping blood containing tissue fluid. The roller design allows for the enlargement of the roller diameter after the first drop of blood containing tissue fluid drips from the puncture point, lifting the finger and facilitating subsequent sampling. The dripped blood can be collected through the collection cylinders, preventing it from dripping to other places and causing inconvenience for subsequent cleaning.

The present invention relates to an innovative blood collection system including a blood collection device, or blotter, designed to efficiently and in an environmentally responsible manner collect blood samples from finger prick or other wounds, and then optionally provide a convenient vehicle for the blood sample to be sent for processing and analysis without having to transport the patient to a clinic and back.

The utility model discloses a fixed blood sampling device, and relates to the technical field of medical blood sampling. The fixed blood sampling device comprises a blood sampling needle, a tail needle, a connecting piece and a filter element, the connecting piece is made of a transparent material, a flowing channel is formed in the connecting piece, the fixed ends of the blood sampling needle and the tail needle are fixed to the flowing channel in a sealed mode, and the filter element can adjust the communication relation between internal air of the connecting piece and external air; when the filter element does not make contact with liquid, the communication relation between internal gas of the connecting piece and external air is opened, blood of a patient can flow out more easily under the action of atmospheric pressure, when the filter element makes contact with the liquid, the communication relation between the internal gas of the connecting piece and the external air is closed, and the blood flows through the connecting piece; meanwhile, medical staff can know the flowing condition of the blood by observing the connecting piece made of the transparent material, and the collecting end of the tail needle punctures the protective sleeve in time and then is inserted into the vacuum blood collecting tube, so that the blood collection is completed.

The utility model relates to the technical field of medical instruments, in particular to a double-tube drop-resistant one-time vacuum blood collection tube. According to the technical scheme, the blood collection tube comprises a cylindrical blood collection tube main tube body structure, two separated blood collection tube matched containing spaces are formed in the blood collection tube main tube body structure, and two protective safe and stable columns which are distributed in a bilateral symmetry mode are arranged on the outer cylindrical face of the blood collection tube main tube body structure. The protection safety stabilizing columns are connected in a sleeving combination mode, the left side and the right side of the blood collection tube main tube body structure are each provided with a main body sealing matching cover, and the main body sealing matching covers are matched with a containing space in the blood collection tube main tube body structure through internal sealing structures. The multifunctional blood sampling device has the advantages that simultaneous detection of different directions and different functions of one device can be realized while detection is performed after blood sampling, space waste of blood sampling tubes can be reduced during blood sampling, and the multifunctional blood sampling device is higher in overall use convenience and more convenient to operate during detection.

This invention discloses a livestock and veterinary quarantine and testing device, relating to the field of quarantine and testing technology. The device includes a placement base, a fixing frame mounted on top of the base, and a power rod driven by an electric push rod mounted on the bottom of the fixing frame. A blood sampling tube body is mounted on the bottom of the power rod. When an animal is placed on a placement plate within the base, the electric telescopic rod is activated. This, along with a moving rod, an arc-shaped outer plate, an elastic telescopic rod, an arc-shaped inner plate, a hydraulic chamber, a force-bearing rod, a push plate, a spring, a spring, and a pressure plate, allows for initial fixation of the animal before blood sampling. Further fixation is performed during blood sampling, and the device quickly returns to the initial fixation state after sampling, reducing clamping time and minimizing the possibility of injury to the animal.

The utility model relates to the technical field of medical instruments, and discloses a tip hemostix with a positioning structure, which comprises a shell, a blood sampling part and a hemostasis part, the blood sampling part comprises a pressing plate, the bottom of the pressing plate is provided with a limiting column, the shell is internally provided with an annular bulge II, the annular bulge II is provided with an inner wall II, the limiting column can slide in a way of being attached to the inner wall II, and the hemostasis part is provided with a positioning structure. A first annular protrusion is arranged on the outer side of the second annular protrusion, a first inner wall is arranged at the axis position of the inner wall of the first annular protrusion, a sampling cutter body is inserted into the bottom of the limiting column, a sliding groove is formed in the top of the first annular protrusion, a limiting block is arranged on the pressing plate, the hemostasis part comprises a hollow pipe, and a disinfection position and a hemostasis position are arranged in the hollow pipe. A finger is punctured through the sampling cutter body, the second inner wall can limit a certain direction of a limiting column, meanwhile, a limiting block on a pressing plate can be limited in a sliding groove, the sampling cutter body is prevented from rotating around the axis of a button, and a second annular protrusion can limit the descending height of the pressing plate and prevent the sampling cutter body from excessively puncturing.

The utility model relates to mobile blood sampling equipment technical field, concretely relates to a mobile quick blood sampling nursing device. The device includes: box, the first side of box rotatory installation has the revolving door, the revolving door with the pivot vertical of box mutual rotation, the garbage basket fixed mounting in the side of revolving door towards the inside of box, a plurality of walking wheels, each walking wheel all install in the bottom surface of box. Can be in the case where the medical staff needs to carry out blood sampling work at the preset blood sampling place to set up the condition of unfolding quickly, possesses the condition of stable placement medical waste.

The utility model relates to the technical field of blood sampling devices for large animals, and discloses a sterile blood sampling device for large animals, which comprises a blood sampling needle, a blood sampling main pipe and a plurality of blood sampling branch pipes which are communicated in sequence, a peristaltic pump is arranged on the blood sampling main pipe, the blood sampling main pipe is communicated with a plurality of blood sampling branch pipes through a three-way pipe or a four-way pipe, the tail end of each blood sampling branch pipe is respectively connected with a blood sampling bottle, and a stop valve is arranged on each blood sampling branch pipe. According to the scheme, the peristaltic pump and the blood sampling branch pipes are combined, so that the blood sampling amount of a large animal in the end is ensured, meanwhile, the continuity of collecting blood for different project purposes is effectively improved, and the situation that the whole blood sampling amount is affected by blood coagulation and pipe blockage possibly caused by the fact that blood sampling bottles need to be switched and blood sampling is suspended in the midway is avoided.