115 results about "Blood drawing" patented technology

The invention relates to the technical field of blood collection, in particular to a blood collection device for medical examination, which comprises a blood collection tube preprocessing module, a tourniquet binding module arranged above a placement platform and used for carrying out tourniquet on a patient and a vein recognition and positioning module used for recognizing and positioning veins of the patient, a circulating rotation disinfection module used for being in contact with the arm of the patient is further arranged in the placement platform; the tourniquet is tightened through the tourniquet retracting and releasing device, the pressure sensor can detect the compression force on the arm of a patient, automatic adjustment is achieved, manual binding is not needed, too loose and too tight conditions are not prone to occurring, the binding quality is ensured, the vein recognition and positioning module can recognize the vein position below the arm epidermis, infrared positioning is adopted, and the positioning accuracy is improved. The blood collection tube pretreatment module can automatically shake a vacuum collection tube after blood drawing is completed, it is ensured that an anticoagulant is mixed with a blood sample, and the blood sample quality is ensured.

The invention discloses a screening method of sicca syndrome markers based on conjunctival blotting, and relates to the technical field of biomedicine, and the screening method comprises the following steps: S1, conjunctival noninvasive sampling; s2, RNA (Ribonucleic Acid) sequencing and pathway screening; s3, machine learning modeling is carried out; s4, clinical verification. According to the invention, biomarker screening is realized, and similar biomarker screening can also be realized through tear sample analysis or other ophthalmic samples; however, the alternative schemes have the defects of relatively strong invasiveness, complex operation and the like; sampling is carried out through the conjunctival imprinting technology, invasive operation such as biopsy and blood drawing is avoided, and pain and discomfort are reduced; differential expression genes can be accurately identified, and the sensitivity and the accuracy are relatively high; through immune cell infiltration analysis, the relationship between the immune cell subpopulation and the sicca syndrome related gene is disclosed, a new perspective is provided for a disease mechanism, and a theoretical basis is provided for a future immune regulation strategy.

The present invention belongs to the technical field of skin pretreatment, and specifically refers to a skin pretreatment device for hematopoietic stem cell transplantation nursing, including a bearing base, an annular rail plate, a rubber ring sleeve, a regional cleaning mechanism, an insertion plate protection mechanism, a pressure regulating sealing mechanism, and a multi-tube blood drawing mechanism. The annular rail plate is arranged on the upper wall of the bearing base, the rubber ring sleeve is arranged on the inner wall of the annular rail plate, the regional cleaning mechanism is arranged on the annular rail plate, the insertion plate protection mechanism is arranged at one end of the regional cleaning mechanism away from the annular rail plate, and the pressure regulating sealing mechanism is arranged on the side wall of the insertion plate protection mechanism. The present invention provides a skin pretreatment device for hematopoietic stem cell transplantation nursing that can support and protect the puncture site of a patient, and can provide negative pressure protection to the puncture site of the patient, reducing the number of times the puncture site comes into contact with the outside air and lowering the probability of infection at the puncture site.

The utility model provides a test disc loading mechanism for a blood coagulation analyzer, which relates to the technical field of medical instruments and comprises a test tube rack conveying mechanism, a test tube conveying and separating mechanism, a test tube rack and a sample test tube, the test tube rack conveying mechanism is used for conveying a test tube rack, so that the test tube rack can reach a preset position; the test tube conveying and separating mechanism is used for separating the test tube rack from the sample test tube. During use, the test tube rack is placed at the blood drawing window, sample test tubes are directly inserted into the test tube rack in sequence after blood drawing, and during loading, the test tube rack with the sample test tubes only needs to be placed in the test tube rack conveying mechanism, so that the test tube rack is conveyed by the test tube rack conveying mechanism in sequence, and the sample test tubes are clamped by the test tube conveying and separating mechanism; the sample test tubes are separated from the test tube rack, enter the blood coagulation analyzer and are driven by the test disc to a detection position for detection, so that the effect of improving the disc loading convenience of the blood coagulation analyzer is achieved.

The utility model belongs to the field of test tube storage, and provides a movable simple blood drawing test tube storage device which comprises a supporting seat, the supporting seat is of an L-shaped structure, a plurality of auxiliary storage cavities are formed in the side face of the supporting seat, a limiting plate is installed at the top of the supporting seat, and the limiting plate is connected with the supporting seat. An auxiliary supporting column is installed between the corner of the other side of the bottom of the limiting plate and the supporting base. A concave groove is formed in the top of the limiting plate, symmetrical movable sliding grooves are formed in the two ends of the inner side wall of the concave groove, movable strips are slidably installed in the movable sliding grooves, a plurality of test tube inserting holes are formed in the limiting plate at the bottom of the concave groove at equal intervals, and writing white boards are installed at the two ends of the limiting plate; according to the utility model, the test tubes can be distinguished through the moving strips, so that the situation that a plurality of patients are confused during simultaneous collection can be prevented while missing collection is prevented, and the collected samples can be conveniently summarized and counted by medical personnel, and are prevented from being lost.

The utility model discloses a sterile pressure patch, belongs to the technical field of medical instruments, particularly relates to a sterile pressure patch used for pressing a needle eye after blood drawing, and aims to solve the technical problems that blood circulation is affected due to the fact that an elastic band of an existing pressure patch tightens the skin, and a pressing area is large due to the fact that the whole patch body is tightened. The patch comprises a patch body, a medicine layer arranged at the bottom of the patch body and adhesive layers arranged at the bottom of the patch body and located on the two sides of the medicine layer. An air bag is arranged in the middle area in the patch body, air storage bags are arranged on the two sides of the air bag in the patch body, and the air storage bags are communicated with the air bag through air channels. In the process of pasting the sterile pressure patch, gas in the gas storage bag is extruded into the gas bag, and most of the gas enters the gas bag after the sterile pressure patch is pasted, so that the gas bag can extrude a needle eye and a small-range area around the needle eye; the pressing area of the air bag is small, the skin cannot be tightened, blood circulation cannot be affected, and the sterile pressure patch is more convenient to use.

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

The invention relates to the technical field of hospital number calling management, in particular to a clinical laboratory blood drawing sequence number and inspection information intelligent processing system. The method comprises the following steps: firstly, acquiring an initial number calling priority from a waiting retention degree angle and a clinical emergency angle of a pregnant woman in an initial analysis module; further, historical reference pregnant women with pre-pregnancy physiological data similar to that of the current pregnant woman are screened out in the priority correction module; further acquiring an inspection emergency coefficient according to the body weight difference of different pregnancy time; further fusing the initial number calling priority and the inspection emergency coefficient to obtain the corrected number calling priority of the current pregnant woman; and finally, calling the number on the basis of the corrected number calling priority in the checking number calling module. According to the method, the waiting retention degree of the pregnant woman and the inspection emergency degree of the pregnant woman are fully considered, the corrected number calling priority is obtained, the inspection number calling priority of each pregnant woman is quantified, the waiting risk of emergency patients is reduced, and the queuing experience of non-emergency patients is guaranteed.

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

The application relates to the field of medical auxiliary devices, and discloses a blood drawing device. The blood drawing device comprises a bottom plate, a lifting assembly, a stand, a driving piece and a plurality of feeding assemblies. The stand is vertically arranged on the bottom plate. The lifting assembly comprises a lifting disc, a sleeve and a rotating block. The sleeve is sleeved on the stand and can slide along the axial direction of the stand. The driving piece drives the sleeve to rotate. The rotating block is fixedly connected with the sleeve and is in threaded connection with the stand. The lifting disc is fixed with the sleeve. A plurality of fixing sleeves are circumferentially arranged on the lifting disc. The plurality of feeding assemblies are circumferentially arranged on the outer periphery of the lifting disc, and the feeding assemblies are in one-to-one correspondence with the fixing sleeves. The feeding assembly comprises a storage box and a feeding push rod. The storage box is provided with a discharge port opposite to the fixing sleeve. The feeding push rod is aligned with the discharge port and can penetrate through the discharge port. The blood drawing device solves the problem that the discharge of the vacuum blood collection tube is slow when a large number of vacuum blood collection tubes are needed.

The utility model relates to the technical field of detection tools, and discloses a cattle early pregnancy protein detection card which comprises a detection bag and further comprises a detection pen, a test tube, a dropper and a needle bag, the detection pen, the test tube, the dropper and the needle bag are placed in the detection bag, two semicircular notches are formed in the side face of the detection bag, the detection pen comprises a pen shell and test paper, and the test paper is arranged in the pen shell. Two holes are formed in the side face of the pen shell, a hole is formed in the top end of the pen shell, a plurality of pieces of test paper are placed in the pen shell, the side faces of the test tubes are fixedly connected with the inner wall of the sealing gasket, the dropper is made of a soft plastic material, the needle bag comprises a packaging bag and a blood taking needle, the blood taking needle is placed in the packaging bag, and the sealing gasket is made of a plastic material. One end of the blood taking needle is movably connected with the needle sleeve in a sleeved mode, by arranging the detection pen loaded with a plurality of test cards, the economic burden of a small farm or a farmer is reduced, by arranging the vacuum blood taking tube, quantitative and automatic blood taking can be achieved, the difficulty of manual blood drawing is reduced, and operation is easy.

The invention discloses a children internal medicine blood extraction device, and relates to the technical field of medical machinery supplies. The children internal medicine blood extraction device comprises an upper limb rear arm supporting seat and an upper limb front arm supporting seat, the upper limb rear arm supporting seat is used for supporting the upper limb rear arm part of a child, and the upper limb front arm supporting seat is connected with the upper limb rear arm supporting seat and used for supporting the front arm part of the child. A sight shielding device and a forearm limiting structure are arranged on the outer wall of the top of the upper limb forearm supporting seat; the sight shielding device comprises a liftable lifting baffle and a video player arranged above the lifting baffle, and further comprises an attention diverting structure. The visual line of a child is shielded through the lifting baffle capable of ascending and descending, and attention of the child to the blood drawing process is reduced visually; when the lifting baffle moves, the windmill is driven to rotate, and dynamic visual elements can effectively attract curiosity of children; the fear and the uncomfortable emotion of the child in the blood sampling process are relieved, and good conditions are created for blood sampling work.

The utility model provides a CRRT (continuous renal replacement therapy) non-planned shutdown circulation management kit and a continuous renal replacement therapy system, and relates to the field of medical equipment. The CRRT non-planned shutdown circulating tube kit comprises a hemodialysis puncture tube, a three-way valve, a tube sealing assembly and a filtering assembly. The hemodialysis puncture tube is provided with a first blood guide end and a first blood return end, and a first valve port of the three-way valve is communicated with the first blood guide end; the pipe sealing assembly comprises a liquid storage part and a pipe sealing body which communicate with each other. The pipe sealing body communicates with a second valve port of the three-way valve. The filtering assembly comprises a hemodialysis main pipe, and a blood pump and a filter which are mounted on the hemodialysis main pipe; the hemodialysis main pipe is provided with a second blood leading end and a second blood returning end; the second blood leading end is communicated with the tube sealing main body, and the second blood return end is selectively communicated with the first blood return end or a third valve port of the three-way valve. The working state of the kit can be adjusted as required, and the kit is flexible to use, low in use cost, low in operation difficulty and high in treatment efficiency.

The utility model discloses a lifting fixing device capable of adjusting temperature, which comprises a lifting support and an operation table arranged above the lifting support, the operation table comprises a detection table and a heating assembly, the four corners of the detection table are respectively and fixedly connected with the lifting support, and the heating assembly is arranged on the upper end face of the detection table. The two opposite sides of the detection table are respectively provided with a controller used for adjusting the temperature of the heating assembly, the detection table is further provided with a supporting cushion device with the adjustable position and height, medical workers or patients can conveniently adjust the heating assembly to be at the proper temperature all the time, and the height and position of the supporting cushion device can be adjusted according to the actual situation; therefore, when blood drawing, injection, PICC dressing replacement and other operations are carried out, the comfort of the patient is improved, the action response is reduced, the success rate of medical operation is further improved, information is checked by a doctor and the patient through double screens, errors are reduced, and the medical efficiency is improved. The utility model belongs to the technical field of medical equipment.

The application discloses application of a killer cell lectin-like receptor G1 (KLRG1) gene as a marker in preparation of a systemic lupus erythematosus (SLE) secondary hemophagocytic lymphohistiocytosis (HLH) detection preparation, and the preparation is used for detecting the expression level of the KLRG1 gene in a biological sample. Research finds that the expression level of the KLRG1 gene in SLE secondary HLH patients is significantly lower than that of healthy control groups and SLE patients, and has good diagnostic sensitivity and specificity. The application also discloses a preparation for detecting the expression level of the KLRG1 gene in a biological sample of a patient, the preparation contains a primer pair for detecting the mRNA level of the KLRG1 gene expression, or contains an antibody for detecting the protein level of the KLRG1 gene expression, and only needs to extract peripheral blood mononuclear cells (PBMC) after blood drawing to detect whether SLE patients are secondary to HLH, and the preparation is simple, rapid, and accurate in result.

The invention relates to the technical field of blood extraction, and discloses a medical examination blood extraction device which comprises a sampling machine body and a working groove, a blood drawing needle cylinder is connected to the inner wall of a limiting cylinder in a penetrating mode, a first electric push rod is fixedly arranged on one side of the inner wall of a first limiting sliding groove, and a limiting block is fixedly arranged on one side of the bottom of a supporting base plate. According to the device, a big arm area is arranged on the inner side of the limiting frame, the device automatically starts the electric air bag to extrude the big arm of a patient, so that the blood vessel of the patient is in a hyperemia state, the fluorescent powder area is recognized and detected through the fluorescence detector, and the detection accuracy is improved. And then a second electric push rod is started to push a limiting cylinder to slide down in a supporting cylinder, so that a blood drawing needle cylinder is driven to slide down, a first needle tube is inserted into a fluorescent area and enters a blood vessel to draw out blood, the patient can complete blood drawing operation on the sampling machine main body in a self-service manner, and the error risk caused by fatigue work of medical staff is reduced.

The utility model provides an arm supporting device for blood drawing, which relates to the technical field of blood drawing auxiliary tools, and comprises a positioning seat, an angle adjusting component is arranged in the positioning seat, an adjusting component is rotatably connected in the angle adjusting component, the angle adjusting component comprises a supporting shaft, and a reset spring is arranged on the outer side of the supporting shaft. The outer side of the supporting shaft is in sliding connection with a driving positioning tooth, the outer side of the supporting shaft is fixedly connected with a driven positioning tooth, through the design, a user only needs to conduct simple pressing and rotating operation through the handle, the angle of the hand supporting plate can be adjusted, the operation process is simple and convenient, and in the blood drawing operation process of the user, the operation efficiency is improved. A supporting angle capable of being freely adjusted according to personal comfort is provided, and therefore it is guaranteed that the arm of a user can be kept in the most appropriate and stable state in the whole blood drawing process. And the possibility of blood vessel damage or pain aggravation caused by improper postures is effectively reduced.

The utility model discloses an auxiliary fixing mechanism for blood drawing, which relates to the technical field of medical instruments and comprises an equipment box, a fixed range adjusting component is arranged in the equipment box and comprises a driving motor arranged in the equipment box, and a transmission rod is arranged at the output end of the driving motor. The side, away from the driving motor, of the transmission rod is fixedly connected with a rotating disc, the side edge of the rotating disc is rotationally connected with a first coupling, the side, away from the rotating disc, of the first coupling is in transmission connection with a sliding block, a second arm fixing plate is arranged above the sliding block, and the driving motor operates to enable the second arm fixing plate to be converted into a moving state from a static state. By means of the design, automatic adjustment of the arm fixing position is achieved, the design fully considers the body type difference of children of different age groups, especially the different arm lengths, so that accurate adjustment of the arm fixing range is achieved, and the self-adaptive adjusting function greatly improves the fixing efficiency and the working efficiency; and the device can be suitable for people with different body types.

The utility model belongs to the technical field of blood drawing tables, and particularly relates to a multifunctional outpatient blood drawing table which comprises a blood drawing table body, a table plate and a seat, a screw, a motor and a first electric lifting column are arranged in the blood drawing table body, and the output end of the motor is connected with the screw through a coupler. The seat is composed of a base, a moving seat, moving wheels, a supporting seat, a second electric lifting column, a seat plate and a cushion, the moving seat is located at the outer end of the screw, threads of the inner wall of the moving seat are matched with threads of the outer wall of the screw, the output end of the first electric lifting column is connected with the table plate, and an arm support, an operation panel, a camera, a cover plate and a vein imaging instrument are arranged on the table plate. According to the utility model, not only is the height adjusting function realized, but also the blood drawing device can be suitable for patients with different heights, and meanwhile, as the fixing belt can fix the position of the arm of the patient, the phenomenon that the arm of the patient moves in the blood drawing process and the smooth blood drawing work is influenced can be effectively prevented.

The application relates to the technical field of medical bloodletting devices, and discloses a safe and sealed venous bloodletting device which comprises an electric pump, a fixing seat connected with the air inlet of the electric pump through a hose, a constant-pressure cavity arranged in the fixing seat, the constant-pressure cavity being communicated with the air inlet of the electric pump, a needle tube detachably mounted on the fixing seat, an open end of the needle tube being communicated with the constant-pressure cavity, a three-way joint arranged at the liquid suction end of the needle tube, two one-way valves respectively mounted at the other two openings of the three-way joint, one of the one-way valves being connected with a blood storage bag through a hose, and the other one-way valve being connected with a needle through a hose. The electric pump intermittently sucks and fills air, continuous blood drawing and blood discharging are realized, the blood of a patient is delivered into the blood storage bag, the process is simple in operation, is not prone to professional exposure, a smaller needle is adopted, the patient has lower discomfort, the bloodletting speed can be adjusted, the application range is wide, the consumables are convenient to replace, the cost is low, and the clinical practicability is high.

The utility model discloses a negative pressure blood drawing tool for slaughtering poultry, which comprises a drawing seat and a handle seat, a drawing pipe and a contact pipe are vertically fixed on the drawing seat, the drawing pipe is positioned in the contact pipe, the handle seat is positioned right below the drawing seat, a handle is arranged between the handle seat and the drawing seat, two ends of the handle are respectively fixed on the drawing seat and the handle seat, and the handle seat is positioned right below the drawing seat. A conveying pipe is arranged in the handle, a negative pressure pipe is arranged on the lower portion of the handle seat, the negative pressure pipe is communicated with a negative pressure vacuum device, the extraction pipe is communicated with the conveying pipe, the conveying pipe is communicated with the negative pressure pipe, the length of the extraction pipe is 0.5-1 cm smaller than that of the contact pipe, a vertical blade is arranged in the extraction pipe through a support, a flow guide groove is formed in the blade, and the blade extends out of a pipe opening of the extraction pipe by 0.1-0.5 cm. Compared with the prior art, the poultry bloodletting device can effectively improve the poultry bloodletting effect and the recovered blood quality, and is safe to operate.

The present invention provides a pulse-type blood-drawing device for patients with blood diseases, belonging to the technical field of medical devices. The device comprises a support base, a limiting groove is provided on the top outer wall of the support base, a heating pad is installed on the inner wall of the limiting groove, a first C-shaped buckle is fixedly connected to the top inner wall of the support base, sliding grooves are provided on the outer walls of both sides of the support base, a plurality of latching teeth are fixedly connected to the inner walls of the sliding grooves, and connecting columns are symmetrically fixedly connected to the outer walls of both sides of the support base; a pulse-drawing component is used to promote blood collection after the venous blood filling is apparent. The pulse-drawing component can be set up to inflate a rubber airbag by stepping on a foot pump, thereby compressing the patient's arm vein, making the vein more filled with blood, and facilitating medical personnel to find a suitable vein for puncture. Such a setting can avoid medical personnel from feeling fatigued due to frequent bending or stretching of the arms, as well as the restriction of heavy clothing.

The utility model relates to the field of animal medicine, and discloses an animal blood collection auxiliary device which comprises a first sliding rail, two second sliding rails are arranged on each of the left side and the right side of the first sliding rail, a plurality of third sliding rails are arranged at the bottom of the first sliding rail, and two fixing valves are rotationally connected to the front sides of the third sliding rails. An elastic band is fixedly connected to the bottom of the third sliding rail, a bottom plate is fixedly connected to the top of the second sliding rail, two first grooves are formed in the top of the bottom plate, a second connecting piece is fixedly connected to the top of the bottom plate, and a second groove is formed in the top of the second connecting piece. According to the utility model, the elastic band is arranged on the first sliding rail so as to bind the body of an animal, the limbs of the animal are fixed with the binding band through the first connecting pieces arranged on the bottom plate, and the binding band is tensioned, so that the limb of the animal is fixed, the function of a tourniquet is also realized, and the effects of binding the animal and facilitating blood drawing are realized.

The utility model discloses an animal medicine animal fixing device which comprises a bottom plate, a fixing fence is fixedly arranged on one side of the upper end of the bottom plate, a fixing mechanism used for fixing an animal is arranged in the fixing fence, and the fixing mechanism comprises a fixing plate, a fixing bandage, an electric push rod and a connecting rope. A fixing plate is fixedly arranged on one side of the surface of the fixing fence, a fixing rope is arranged at the lower end of the interior of the fixing fence, a plurality of electric push rods are arranged on the two sides of the surface of the fixing fence, connecting ropes are fixedly arranged at the four corners of the outer side surface of the fixing bandage, and the connecting ropes are fixedly connected with the movable ends of the electric push rods. The animal fixing fence is good in use effect, animals can be lured into the fixing fence and then bound and fixed, manual contact with the animals is not needed in the whole process, and therefore when blood drawing or other medical detection is carried out on the animals subsequently, the animals can be safely operated only by standing on the two sides of the fixing fence, and operation is convenient. Therefore, the use effect of the device can be improved.

The invention discloses puncture blood sampling equipment for blood sampling, and belongs to the field of medical instruments, the puncture blood sampling equipment comprises an operation bin and a smear mechanism, the operation bin comprises a storage bin and a positioning bin, the positioning bin is arranged at the top of the storage bin, the smear mechanism is slidably arranged in the positioning bin, and the smear mechanism comprises a blood drawing cylinder, an auxiliary cylinder and a blood transfusion ring; the blood drawing barrel is arranged above the auxiliary barrel, the blood transfusion ring is arranged between the blood drawing barrel and the auxiliary barrel, the storage bin comprises a first bin body, a bottom plate and a first spring, the top of the first bin body is open, the bottom plate is arranged in the first bin body in a sliding mode, the first spring is arranged between the bottom plate and the bottom wall of the first bin body, and clamping edges are symmetrically arranged on the top wall of the first bin body. The blood smear making device can quickly help a patient to make blood smears more conveniently and repeatedly.

The invention relates to the technical field of thrombus treatment, and discloses a gradient negative pressure thrombus suction and blood recovery residue prevention device which comprises a thrombus machine body, an adapter tube is fixedly arranged in the middle of a blood suction tube, an expansion net is fixedly arranged at the edge of one end of the adapter tube, and an insertion tube is fixedly arranged at one end of the expansion net. The connecting tube is pushed in the connecting hopper to drive the inserting tube to continuously move in the blood vessel of a patient, so that the expansion net is arranged at the rear end of a thrombus and abuts against one end of the connecting tube at the connecting hopper, and then after the steel wire rope is pulled, the inserting tube is pulled by the steel wire rope to move backwards; after the expansion net expands, the connecting pipe is pulled at the connecting hopper to drive the insertion pipe and the expansion net to move back and forth together, then the expansion net pushes the thrombus to move in the blood vessel together and be separated from an adhesive area, and the thrombus smoothly enters the blood drawing tube in cooperation with negative pressure suction.

The invention discloses a novel disposable vein blood taking needle, and relates to the technical field of medical instruments, the novel disposable vein blood taking needle comprises a vein needle, the tail end of the vein needle is communicated with a blood drawing tube, the tail end of the blood drawing tube is communicated with a test tube needle, the outer side of the test tube needle is provided with a protective shell, the top end of the protective shell is fixedly connected with a top plate, and the test tube needle penetrates through the top plate; a limiting plate is fixedly connected to the outer side of the middle of the test tube needle, a reset spring is fixedly connected to the top end of the limiting plate, and the top end of the reset spring is fixedly connected with the top plate. The needle head is wrapped by the protective cover, pollution or mistaken touch puncture caused by exposure is avoided, the safety of medical staff and patients is guaranteed, the protective shell and the top plate form a closed structure, the needle head is further isolated, and the test tube needle head can be controlled to puncture the test tube sealing cover through the design of the sliding ring, the sliding block and the limiting plate; the control button is pressed down to release the clamping connection between the second clamping piece and the first clamping piece, the reset spring automatically pulls the needle out of the test tube, the next test tube is rapidly replaced, and the blood sampling efficiency is improved.

This utility model discloses a micro-volume blood collection assembly, including a blood collection container and a capillary tube. The blood collection container includes a blood storage soft bottle and a rubber stopper. The blood storage soft bottle forms a storage cavity with an opening. The blood storage soft bottle has a switchable first state and a second state. The volume of the storage cavity in the first state is larger than the volume of the storage cavity in the second state. The rubber stopper seals the opening of the blood storage soft bottle and has a through hole that communicates with the storage cavity. The capillary tube is removably inserted into the through hole, wherein the capillary tube expands the inner diameter of the through hole when inserted. According to this utility model, the micro-volume blood collection assembly allows medical personnel to draw blood by squeezing the blood storage soft bottle and collect the drawn blood into the blood storage soft bottle. Blood drawing and collection can be completed in one operation. The structure is simple and easy to operate, effectively avoiding the risk of contamination of the collected blood by the rubber nozzle due to improper operation. The structure is reliable.

The disclosure provides a cannula insertion system to insert a cannula into a blood vessel of a patient, comprising: a cannula insertion device configured to insert the cannula into the patient, a cannula insertion device positioning system to position the cannula insertion device with respect to the patient, and a control device arranged to control the positioning system to position the cannula insertion device in a suitable position to insert the cannula into patient, wherein the cannula insertion system is configured to carry out a blood drawing step, wherein the cannula insertion system comprises a blood flow rate sensor device arranged to determine a blood flow rate of blood being drawn from the patient during the blood drawing step, and wherein the control device is configured to control the cannula insertion device positioning system and / or the cannula insertion device and / or a blood collection system and / or an ultrasound transducer positioning system in dependence on the determined blood flow rate of blood being drawn from the patient.

The utility model relates to the technical field of hemostix, and discloses a veterinary ear hemostix which comprises an inner sleeve, a piston is arranged in the inner sleeve, an outer sleeve is sleeved outside the inner sleeve, a first lug is fixedly mounted at the top of the piston, a second lug is fixedly mounted at the top of the outer sleeve, and a first lug is fixedly mounted at the top of the first lug. A traction rope is connected between the first lug seat and the second lug seat, a mounting hole is formed in the bottom of the inner sleeve, a needle head is mounted in the mounting hole, and a sealing cover is arranged on the lower portion of the inner sleeve. The needle head can rotate, the exposed length of the needle head is adjusted by rotating the needle head, and it is guaranteed that the needle head penetrates into blood vessels and does not penetrate through ears; the piston is driven to move upwards by pulling the outer sleeve downwards, the operation is simple, and the blood drawing operation by a single person can be realized; after blood drawing is completed, the lower portion of the outer sleeve is wrapped through the sealing cover, and blood leakage of the needle head is prevented.