85 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 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 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 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 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 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 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.

The utility model relates to the field of blood drawing plates, in particular to a combined blood drawing plate, which is characterized in that a storage component in the blood drawing plate can be deformed and put down, so that the occupied space is reduced, the storage is convenient, and the problems in the background technology are effectively solved. Comprising a tray which is of a rectangular structure with an upper opening, a non-drawn test tube rack capable of being put down backwards is arranged on the left side in front of the tray, and a drawn test tube rack capable of being put down backwards is arranged on the right side in front of the tray; an aneriodide storage rack, an alcohol storage rack and a cotton swab storage rack which can be put down backwards are arranged on the tray between the non-extracted test tube rack and the extracted test tube rack from left to right; strip-shaped grooves in the left-right direction are embedded in the tray on the rear sides of the non-extracted test tube rack and the extracted test tube rack at intervals in the left-right direction; a blood taking needle storage rack which can be put down rightwards is arranged on the left side of the tray on the rear side of the strip-shaped groove; and a dirt rack which can be put down leftwards is arranged on the right side of the tray on the rear side of the strip-shaped groove. The device is easy to operate, convenient to use and suitable for various places.

The utility model relates to the technical field of forearm bolsters, and provides a forearm bolster used after an obstructive sleep apnea syndrome, the forearm bolster comprises a bolster body and a height adjusting module, the bolster body is provided with a containing cavity, a supporting surface and a mounting surface, the supporting surface and the mounting surface are opposite, the mounting surface is arranged on a bed, and the supporting surface is used for supporting a forearm; the height adjusting module is arranged in the containing cavity and used for adjusting the distance between the supporting face and the mounting face. Through the arrangement of the bolster body, a patient can be limited on a bed to a certain extent, the risk that the patient falls off the bed is reduced, the bolster body can keep the forearm of the patient in a horizontal posture, medical staff can conveniently conduct blood drawing and other operations on the forearm of the patient, the forearm of the patient can be lifted to different heights through the height adjusting module, and therefore the patient can be conveniently and rapidly protected. And the comfort of the patient can be improved.

The invention relates to the technical field of medical instruments, in particular to an artery blood sampling auxiliary device and method, and the device comprises a strip-shaped shell, a lifting mechanism, a fixing mechanism and an annular pressure sensor. A groove with a rubber block is formed in the bottom of the shell and used for fixing and sealing the needle point. The body surface pressure distribution is symmetrically analyzed through the pressure sensor, and an artery puncture point is automatically positioned. The lifting mechanism drives a screw rod through a stepping motor to drive a sliding block and a fixing mechanism to move. The fixing mechanism adopts a first clamping plate, a second clamping plate and a blood drawing unit (a balancing weight or a servo motor-lead screw structure) to respectively clamp a piston shaft and an empty cylinder of the injector, so that automatic operation of puncturing, blood drawing and needle withdrawing is realized. A second pressure sensor is arranged in the device to monitor the pressure in the needle in real time, puncture safety is guaranteed, and the blood drawing amount can be accurately adjusted. Due to the integrated design, the puncture success rate and the blood sampling efficiency are remarkably improved, and the operation difficulty and the pain of a patient are reduced.

The utility model relates to a fixable safe blood taking needle which comprises a tube cavity and is characterized in that a needle head is fixedly installed on the right side of the tube cavity, a first handle is fixedly installed on the front face of the needle head, the first handle is located at the end close to the left side of the needle head, and a skin adsorption assembly is arranged outside the first handle. The skin adsorption assembly comprises a connecting pipe fixedly installed in the first handle. According to the fixable safe blood taking needle, the needle head is inserted into the blood vessel of a patient through the first handle, then the rubber ball is squeezed, air is exhausted through the connecting pipe and the suction cup, then the suction cup is attached to the skin near the blood drawing area of the patient, after the rubber ball is loosened, the suction cup adsorbs the skin to fix the needle head, and before the needle is pulled out, the skin below the suction cup is gently pushed open, so that air enters; the whole process is simple and fast, and convenience and safety of blood drawing operation are effectively improved.

The utility model discloses an improved centrifugal separator DPMAS combined plasma exchange device. An improved centrifugal separator DPMAS combined plasma exchange device comprises a blood drawing pipe connected with the artery of the human body, the front end of the blood drawing pipe is connected with a plasma separator, and the output end of the bottom of the plasma separator is connected with a blood return pipe capable of being connected with the vein of the human body. The output end of the side face of the plasma separator is connected with an adsorption filtration pipeline through a plasma input pipe, the output end of the adsorption filtration pipeline is connected with a blood return pipe through a plasma output pipe, and a plasma input pump is arranged on the plasma input pipe. A liquid discharge pipeline is connected to the plasma input pipe between the plasma input pump and the adsorption filtration pipeline through a liquid discharge three-way pipe, and a replacement pipeline is connected to the plasma output pipe close to the blood return pipe through a replacement three-way pipe. According to the utility model, the DPMAS mode and the plasma exchange mode can be conveniently switched, the operation steps can be simplified, and the infection risk of a patient can be reduced.

1. The name of the design product: hand fixer (for blood drawing). 2. The use of the design product: hand fixer for blood drawing of children. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The invention belongs to the technical field of medical instruments, and particularly relates to a closed type indwelling catheter blood sampling device. According to the closed type indwelling catheter blood sampling device, the communication state of the three-way pipeline can be adjusted by rotating the switching valve, diluted blood is pumped out through the injection assembly, then the injection assembly is kept still, the communication state of the three-way pipeline is switched, and a blood sampling test tube for collecting blood needing to be inspected is inserted into the needle cover through the insertion opening in the needle cover; the head of the hollow needle head can be inserted into the blood collection test tube, blood needing to be inspected directly enters the blood collection test tube, and the blood collection test tube is taken down from the hollow needle head until the blood needing to be inspected is completely sucked; the communicating state of the three-way pipeline is switched again, the diluted blood in the injection assembly is injected back into the indwelling catheter, blood drawing work in the indwelling catheter is completed, the indwelling catheter does not need to be repeatedly connected and disconnected through a plurality of injectors in the whole process, the blood drawing step is simplified, and the risk of catheter related blood flow infection is reduced.

The utility model discloses a novel blood drawing frame in the technical field of medical equipment, which comprises a layered cabinet body, two sides of the layered cabinet body are rotatably connected with closed door plates, the surface of each closed door plate is fixedly connected with a pulling handle, the inside of the layered cabinet body is slidably connected with three layered sliding plates, and the layered sliding plates are arranged in the layered cabinet body. A drawing buckle groove is fixedly formed in the surface of the layered sliding plate, and a sample placing cylinder is fixedly connected to the upper end of the layered sliding plate. By means of the arrangement, a collected blood sample can be subjected to shading treatment, meanwhile, a low-temperature treatment storage mode is adopted, the collected blood sample can be well stored, and the situation that the detection effect is inaccurate due to deterioration is avoided.