66results about How to "Convenient blood collection" patented technology

The invention relates to a sick pig blood taking device with a rotary fixing function for animal husbandry and veterinary medicine, and aims to solve the problem that it is inconvenient for a veterinarian to take blood through an injector due to the fact that piglets are not easy to fix during blood taking. The sick pig blood taking device with a rotary fixing function for animal husbandry and veterinary is characterized in that a placing plate is horizontally arranged in the middle of a frame body, a waist and abdomen fixing device is arranged in the center of the lower surface of the placingplate and comprises an arc-shaped bent plate and arc-shaped side plates hinged to the two sides of the arc-shaped bent plate, the inner surfaces of the arc-shaped bent plate and the arc-shaped side plates are of arc surface structures, and two circular rings are arranged in the middle sections of the outer surfaces of the arc-shaped side plates; vertical long-strip holes are formed in the positions, corresponding to the circular rings, of the side wall of the frame body, push rods are arranged in the long-strip holes, and one ends of the push rods are connected with the circular rings throughhooks; and sliding rails are arranged on the two sides of the frame body, two sets of telescopic devices are arranged on the sliding rails on the two sides, clamps are arranged at the ends of the telescopic devices, handles are arranged at the tail ends of the telescopic devices, triggers are hinged to the handles, and steel ropes on the clamps are connected with the triggers.

The invention relates to an isolated culture method for tumor-specific T cells and a product obtained through the method. The isolated culture method comprises the steps that firstly, peripheral bloodof a tumor patient is pretreated, mononuclear cells are separated from the peripheral blood, the mononuclear cells with positive PD-1 are separated out, finally, the mononuclear cells with positive PD-1 are amplified, and the tumor-specific T cells are obtained. An initial material involved by the isolated culture method for the tumor-specific T cells is the peripheral blood of the tumor patient,tumor tissue or malignant pleural effusion and ascites of the patient do not need to be used as the material, the material is more conveniently collected, blood sampling can be conveniently conductedon almost all tumor patients, and no large wounds are caused; the finally-obtained T cells are high in tumor specificity and comprise T cells with positive CD4 and T cells with positive CD8; the method is simple in operation process and short in required time.

The invention discloses a newborn heel blood collection assistant device which comprises a carbon dioxide cylinder, a steam generator and a pneumoperitoneum machine body. Carbon dioxide is stored in the carbon dioxide cylinder, a carbon dioxide outlet is arranged on the carbon dioxide cylinder, and a switch and a pressure regulating valve are arranged at the carbon dioxide outlet; a steam port is arranged on the steam generator, a steam regulating button is arranged on the steam generator, the pneumoperitoneum machine body is a bilayer shell comprising an inner shell and an outer shell, the outer shell sleeves the inner shell, two ends of the outer shell are connected with the inner shell, a containing cavity is formed between the outer shell and the inner shell, a carbon dioxide incoming tube extending outwards is arranged on the inner shell, a steam nozzle is arranged on the side wall of the inner shell, a mixed gas outlet is formed in the inner shell, a steam connection tube is arranged on the side wall of the outer shell, and the end of the steam connection tube is communicated with the steam port of the steam generator. The device can provide carbon dioxide gas having temperature and humidity.

The invention provides a hemostix. The hemostix comprises a catheter seat, a blood sampling structure and a connecting pipe, wherein an accommodating cavity is formed inside the catheter seat; a catheter for accommodating a puncture needle tube is fixedly arranged at one end of the accommodating cavity; the hardness of the catheter is less than that of the puncture needle tube; the puncture needletube has a first state in which the puncture end extends out of a catheter, and a second state in which the puncture end is retracted toward the catheter seat and is separated from the catheter seat;the blood sampling structure comprises a blood collection needle; the connecting pipe is connected with the catheter seat and the blood sampling structure, and is communicated with the accommodatingcavity and the blood collection needle; and the hardness of the connecting pipe is not less than that of the catheter seat. According to the hemostix, pains of a person waiting for blood sampling canbe relieved in the blood sampling process, blood sampling operation can be performed conveniently, and accuracy of a blood detection result can be improved.

The invention provides a multifunctional fixation fence for ruminant animals, and belongs to the technical field of ruminant animal fixation equipment. The fence comprises a bottom frame and two fences oppositely arranged at two ends of the bottom frame, wherein two enclosing structures are arranged on the part, between the two fences, of the bottom frame, two lateral moving fences are oppositelyarranged on the part between the two enclosing structures, wherein a drawing enclosing plate is arranged the gap between one of the enclosing structure and one of the lateral moving fence, and two neck clamping plates are arranged on the part between the other enclosing structure and the other lateral moving fence correspondingly. The multifunctional fixation fence has the advantages that the overall structure is reasonably arranged to further restrict the moving space of the ruminant animals, so that an operator conveniently performs operations such as blood drawing, infusion and the like onthe ruminant animals standing on an experiment operating area, and therefore the successful rate of experiments is improved.

The invention discloses a blood collection device with a pull hook fixing function for deseased pigs in animal husbandry and veterinary, and relates to the technical field of livestock blood collection. The blood collection device with the pull hook fixing function for the deseased pigs in the animal husbandry and veterinary includes a base, wherein fixing columns are fixedly connected at the fourright angles of the top of the base; the front and rear sides of the top of the base are respectively embedded with the front and rear sides of the bottom of a placement mechanism; two-way threaded rods are movably mounted between the two fixing columns recpectively located on the left and right sides of the top of the base; positive and negative rotation motors are fixedly mounted on the two fixing columns located on the top of the base near the front side of the base. According to the blood collection device with the pull hook fixing function for the deseased pigs in the animal husbandry and veterinary, two pull hook mechanisms moving towards forelimbs of piglets are vertically parallel and are in contact with the forelimbs to squeeze the forelimbs of the piglets to straighten backwards; meanwhile, the two pull hook mechanisms in splay shapes move towards hind legs of the piglets to separate the hind legs of the piglets into splay shapes, and the preparation work of a precaval veinblood collection method is quickly completed.

The invention relates to a process and a device for sterile blood sampling of live pigs. The process comprises: fixing a live pig in a sterilized hermetic blood sampling system; puncturing the heart the live pig and the great vessel connected with the heart through a puncture needle to perform sterile blood sampling; and connecting the puncture needle with a blood collection container through a duct to collect blood, wherein the blood sampling speed is 0.5 to 5 L / 1 to 10 minutes, and the blood sampling amount is 0.5 to 5 L / 100 kg / pig. Compared with the prior art, the process has the advantages of simplicity, easy implementation, effective prevention of microbial contamination to pig blood, low cost and the like.

The invention provides a pediatric external jugular vein blood sampling fixing device, and relates to the technical field of medical equipment. The pediatric external jugular vein blood sampling fixing device includes a support necklace, a corrugated plate is fixedly connected to the middle of the supporting necklace; a notch is formed in the left side of the supporting necklace, connecting rods are fixedly arranged on the left side and the right side of the notch, first sawteeth are formed in the inner sides of the connecting rods, the peripheries of the connecting rods are sleeved with sleeve plates, gears are rotatably connected into the sleeve plates, and first rotary knobs are fixedly arranged in the centers of the gears. With the pediatric external jugular vein blood sampling fixingdevice, the neck of a patient can be supported, so the neck of the patient cannot be bent or rotated, the needle inserting difficulty is lowered, the blood sampling success rate is increased, a traditional mode making the patient cry is abandoned, jugular veins of the patient can be fully exposed, blood sampling is facilitated, and pain of the patient is relieved.

The invention discloses a protection type animal-borne disease blood sample collection device which comprises a top tank, a first partition plate, a cover plate, a livestock retaining cage, a first cage gate, a second partition plate, a top rack, a domestic animal retaining cage, an auxiliary tank body, an incubator, a buckle, a third partition plate, a first drawer, a second drawer, a garbage can, universal wheels, a fourth partition plate, a fixing ring, a fifth partition plate, a second cage gate, locks, a bottom rack, grids, thermal insulating cotton, a sixth partition plate, a seventh partition plate, a sterilization alcohol tank, a tank cover, a chute, a cotton ball storage cavity, an eighth partition plate, a fixing rack, a first tank body and a second tank body. By adopting the device, blood of livestock and domestic animals can be collected conveniently, the blood collection time is greatly shortened, the speed is increased, the whole device is compact in structure, diverse infunctions, convenient in article taking, all procedures in the blood collection process can be smoothly carried out, the blood of livestock of different body shapes can be collected simultaneously, fastening safety can be ensured, medical operators and epidemic prevention articles can be isolated, and the security is ensured.

The invention discloses a multifunctional indwelling needle. A blood collection mouth is arranged at the side surface of a Y interface A of the indwelling needle, wherein the blood collection mouth can be used for collecting blood. An airbag is arranged in a catheter seat, not only is the Y interface A blocked, but also the blood is prevented from flowing counter. A buckle is arranged at the outer side of the catheter seat, thus the indwelling needle in the patient's arms and the like is fixed more firmly. A telescopic sleeve is arranged on a puncture needle seat located at the tail end of a puncture needle; a cap bag is arranged on the top end of the telescopic sleeve, wherein the cap bag can pull the puncture needle into the telescopic sleeve to prevent stabbing falsely. Rubberized fabrics and telescopic nets are arranged at the outer side of the catheter seat, Y interface A and buckle respectively, thereby fixing the indwelling needle in the patient's arms and the like more firmly. Compared to the prior art, the multifunctional indwelling needle has the advantages of collecting the blood conveniently; preventing the blood from flowing counter and stabbing falsely; being fixed more firmly in the patient's arms and the like; possessing various functions; being simple in structure, more secure and more reliable.

The invention discloses a laparoscopic venous blood taking needle. The laparoscopic venous blood taking needle comprises a medical injector connector, a medical silica gel connecting tube and an operating handle. The laparoscopic venous blood taking needle is characterized in that a medical transparent protective sleeve tube with the upper end opened is arranged above the operating handle, a fixing ring is arranged in the lower end of the protective sleeve tube, and a hollow needle used for taking blood is further arranged in the protective sleeve tube; the upper end of the hollow needle is provided with a hook bending downwards, the hooked needle is arranged near the portion below an opening formed in the upper end of the protective sleeve tube, and the lower end of the hollow needle penetrates through the fixing ring at the lower end of the protective sleeve tube and then penetrates through the lower end of the operating handle to enable the distance between the operating handle and the protective sleeve tube to be 5 cm; the tail end of the portion, penetrating through the lower end of the operating handle, of the hollow needle is connected with one end of the medical silica gel connecting tube, and the other end of the medical silica gel connecting tube is connected with the medical injector connector. The laparoscopic venous blood taking needle has the advantages that the structure is simple, manufacture is easy, blood taking can be conducted on a vein blood vessel in the abdominal cavity of a patient through an endoscopy, blood taking is convenient and safe, and medical accidents are reduced.

The invention discloses a device for collecting blood of a special patient by clinical laboratory, which comprises a lying plate and an ultrasonic probe, wherein the left side and the right side of the lying plate are hinged with a first movable plate and a second movable plate respectively; the rear end of the lying plate is connected with a first sliding seat; a first electric sliding block is connected onto the first sliding seat; a second sliding seat is connected onto the first electric sliding block; a second electric sliding block is connected onto the second sliding seat; one side, close to the lying plate, of the second electric sliding block is connected with a connection rod whose bottom part is provided with two inverted U-type silica gel blocks transversely arranged in parallel; and the upper end of the connection rod is connected with the ultrasonic probe via a universal connection rod. Through the devices sliding vertically and horizontally under electric control, an electric pressing device and the ultrasonic probe device whose direction can be adjusted randomly, a clinical laboratory personnel can easily collect the blood of a special patient in the only one person condition, and thus, blood collection on the patient of the kind in the future is more convenient.

The invention discloses a rat caudal vein blood sampling device, which is characterized by comprising a bottom plate, a connecting rotating shaft, a cover body, an operation table, a storage drawer, amouse locking cage, a mouse locking cage rotating shaft, a rotating shaft base, a tail fixing table, a supporting connecting column, a guide rail, a centrifugal machine body, a centrifugal machine cover, a blood drawing tube, a vacuum blood vessel bottle and a constant-temperature water bath tube. According to the device, a rat fixing device, a tail fixing device, a heating device, a blood sampling device and a centrifugal machine are integrated, all steps are seamlessly connected when the device is used, and the efficiency is higher; and the rat caudal blood vessel filling adopts dual effects of electric heating and compression, so that the effect is more obvious.

The invention belongs to the technical field of blood sample collection, and particularly relates to a blood sample collection finger sleeve for physical examination, which comprises a first shell, the side surface of the upper end of the first shell is fixedly connected with a second shell, one end of the lower side in the first shell is slidably connected with a first fixing ring, and the other end of the lower side in the first shell is provided with a second fixing ring. A rotating disc is arranged at the end, away from the first shell, of the screw rod, the other end of the screw rod is in threaded connection with a moving plate, a sliding rod is arranged at the upper end of the moving plate, the sliding rod is in sliding connection with the second shell, a moving block is arranged at the upper end of the sliding rod, and an alcohol box is arranged at the end, away from the sponge, of the moving block. A pressing plate and a wear-resistant gasket are slidably connected in the alcohol box, so that friction between the sliding rod and the second shell can be reduced, the service life of the instrument is prolonged, and the first shell and the second shell are made of transparent plastic materials, so that medical staff can conveniently observe and accurately collect blood in the blood collection process.

The invention discloses an infant venous blood collection device, and relates to the technical field of venous blood collection. The device comprises a console, a groove is formed in the upper surfaceof the console, the inner wall of the groove is provided with a sponge pad, a fixing plate is fixedly connected to the upper surface of the console, an elastic band is disposed on the right side surface of the fixing plate, the right end of the elastic band penetrates through a first through hole formed in the left side surface of a casing and a second through hole formed in the left side surfaceof a clamping plate, the outer wall of the elastic band respectively contacts with and presses against the inner walls of the first through hole and the second through hole, and the upper surface ofthe clamping plate penetrates through a third through hole formed in the upper surface of the casing and is located outside the casing. The infant venous blood collection device utilizes the combination of the elastic band, the casing, the first through hole, the second through hole, the clamping plate, a telescopic rod and a first spring, thereby achieving the adjustment of the binding strength of baby arms, reduces the injury of the baby arms, and provides convenience for infant venous blood collection.

The invention discloses an integrated device for newborn heel blood sampling. The device comprises a foot sole fixing plate, an ankle fixing plate, a first elastic cord, a second elastic cord, a thirdelastic cord, grooves and a heater. The ankle fixing plate is arranged at the upper side of the foot sole fixing plate. The first elastic cord and the second elastic cord are arranged at the upper side of the foot sole fixing plate, the third elastic cord is arranged on the ankle fixing plate, the grooves are formed in the inner sides of the ankle fixing plate and the foot sole fixing plate, theheater is arranged at the outer sides of the grooves, and a shell is arranged at the lower side of the foot sole fixing plate. When foot soles of newborns are different in size, the foot soles of different sizes can be fixed, a blood sampling device is fixed more firmly, blood sampling can be performed conveniently, the device is suitable for being used and popularized, the heater is used for heating the foot soles, foot sole blood naturally flows out, a medical worker does not need to extrude the foot soles with hand, the comfortable feeling is brought to newborns, the life health of the newborns is protected, and the medical worker can conveniently use the device.

The invention discloses an intraperitoneal injection and caudal vein blood sampling device, which comprises a porous plastic board, a supporting device, auxiliary fixing devices and a cloth bag. The auxiliary fixing devices are respectively arranged on the lateral surfaces of both ends of the porous plastic board, and each auxiliary fixing device comprises a fixed rod and a telescopic rod; a head fixing clamp is arranged at the left end of the upper part of the porous plastic board, and a neck fixing pile is arranged at the right end of the head fixing clamp; a drug feeding hole is formed in the middle part of the porous plastic board, and a tail blood sampling fixing device is arranged at the upper end of a tail blood sampling hole; a tail fixed hole is formed in the right side of the tail blood sampling hole; moreover, a bulge is formed at the lower part of the supporting device; the upper part of the supporting device is hinged with one end of a connecting piece by a rotating shaft, and a clamping ring corresponding to the bulge is arranged at the other end of the connecting piece; the lower end of the supporting device is hinged with a rotary table by a rotating shaft; and a base is arranged at the lower end of the rotary table. The intraperitoneal injection and caudal vein blood sampling device is convenient to sample blood, has high working efficiency, is convenient to use, and has high practicality.

The invention provides an acupuncture point pre-embedded needle. The acupuncture point pre-embedded needle is characterized by comprising an indwelling structure and an acupuncture structure. The indwelling structure comprises a catheter and a needle base. The catheter is a flexible hollow tube, the tail end of the catheter is rightly sleeved with a guiding connecting sleeve, the guiding connecting sleeve is embedded into the needle base, the needle base is of a flat structure, the upper surface of the needle base is a poreless sealing face, the acupuncture structure comprises a needle core and a needle handle, the tail end of the needle core is fixedly connected with the needle handle, the needle core penetrates through the needle base of the indwelling structure, the guiding connecting sleeve enters the catheter and makes tight contact with the catheter, and the needle tip at the front end of the needle core exceeds out of the catheter. Compared with the prior art, in the safe and comfortable state, the indwelling catheter indwells in the shallow deep layer of an acupuncture point for a long time, the purpose of stimulating the acupuncture point for a long time is achieved, no obvious discomfortableness or anaphylactic reaction exists, and the acupuncture point pre-embedded needle is simple in structure and free of toxic and side effects.

The invention discloses a needle penetration guide device. The guide device comprises a handle, a connecting rod and a puncture hook head, wherein one end of the connecting rod is connected with the handle and the other end of the connecting rod is connected with the puncture hook head; an included angle theta is formed between the puncture hook head and the connecting rod; and the puncture hook head is a cone with a sharp lower end and is provided with at least one notch. When injection is given to an animal or the blood of the animal is drawn, the puncture hook head of the guide device is first inserted into skin on a blood vessel, a small cut is slightly opened on the skin with the handle to make the blood vessel seen, and the needle is penetrated into the blood vessel along the notch of the puncture hook head, so that the blood is successfully drawn or the injection is successfully applied. The needle penetration guide device has the advantages of simple structure, convenient blood drawing or injection, high success rate and small cut.

The invention discloses a medical apparatus in parallel with vessels, which comprises a hollow cavity, a blood inlet channel running through the hollow cavity and a blood outlet channel running through the hollow cavity, wherein the blood inlet channel is communicated with vessels through a first opening on the vessel wall; and the blood outlet channel is used for being communicated with the vessels through a second opening on the vessel wall.

The invention discloses a blood collection device for donkey slaughtering. The blood collection device comprises a blood collection barrel, a puncture knife and a rotary handle. The blood collection barrel is provided with a piston, the upper end of the piston is provided with a guide rod, and the guide rod is sleeved with a spring. The upper end of the spring is connected to the guide rod, the lower end of the spring is connected to the blood collection barrel, the side wall of the guide rod is provided with transmission teeth, and the side wall of the blood collection barrel is provided witha gear matched with the transmission teeth. The rotary handle is inserted into the gear, the lower end of the blood collection barrel is connected with a blood inlet tube connected to a puncture knife through a connecting hose, and a blood inlet hole is formed in the puncture knife. A blood outlet tube is connected to the side wall of the blood inlet tube, a first valve is arranged on the blood inlet tube, and a second valve is arranged on the blood outlet tube. In this way, blood is collected directly into the blood collection barrel, which avoids the problem of environmental pollution caused by blood sputtering during basin collection. The blood collection barrel is closed to ensure the cleanliness of the collected blood.

The invention belongs to the technical field of medicine, and discloses a disposal blood collecting device capable of performing terminal disinfection on a needle head. A blood collecting module collects blood of a patient through a blood collecting needle; a blood amount measuring module is used for measuring capacity information of blood collecting through scales, a main control module is used for controlling each module to operate normally, an elastic driving module is used for providing blood collecting power for the blood collecting needle, a needle head disinfecting module is used for performing terminal disinfection on the blood collecting needle which completes blood collecting, and a voice recording module is used for recording patient information and blood collecting informationdata through a recorder. By performing terminal disinfection on the blood collecting needle through a needle head disinfection module, terminal disinfection processing of the blood collecting device is simplified, a blood collecting position can be accurately judged, great convenience is provided for the smooth operation of blood collecting, information of a blood patient can be conveniently savedby workers through voice recording using the voice recording module, and therefore long-term tracking monitoring of the patient is convenient.

The invention provides a painless glucometer with an automatic disinfection function, and relates to the technical field of blood glucose detection. The painless glucometer with the automatic disinfection function comprises a box body, a disinfection opening, a blood sampling opening and a detection opening are sequentially formed in the lower portion of the front side of the box body, a material taking box is arranged on the rear side of the box body, a paper adding barrel cover is arranged in the middle of the top end of the box body, and an ultraviolet disinfector is arranged at the top of the disinfection opening. A laser blood collector is arranged at the top of the blood collection opening, and a storage cylinder is fixedly connected to the inner top of the box body. Test paper is put into the storage cylinder, the pressing plate below the paper adding cylinder cover can press the test paper, the spring can keep pressing the test paper at the bottom of the storage cylinder, the electric push rod pushes the pressing plate to push the test paper at the bottom of the storage cylinder out through the paper outlet hole, and then the test paper is placed on the detection table. When a person to be detected drips blood onto the test paper through the detection port, the blood sugar level of the blood can be analyzed, detection is completed, and convenience and rapidness are achieved.

The invention relates to a novel seat for a blood collecting vehicle, comprising seat legs, the front and rear adjustable handles of the seat, a cushion, a lifting adjustable armrest component, an adjustable headrest component and an adjustable backrest component; the seat legs are slideably connected with the cushion; the front and rear adjustable handles of the seat are in transmission connection with the cushion; the lifting adjustable armrest component is connected with the cushion; the adjustable backrest component is connected with the cushion; and the adjustable backrest component is connected with the adjustable headrest component. Compared with the prior art, the novel seat for the blood collecting vehicle has the advantages of wide scope of application, convenience in operation, higher blood collecting efficiency and the like.

The invention discloses a blood drawing device for blood examination for endocrine diabetes mellitus. The blood drawing device comprises a base, wherein a first supporting rod is fixedly connected tothe left side of the top of the base, a blood collection tube placing frame is fixedly connected to the top end of the first supporting rod, a second supporting rod is fixedly connected to the top ofthe base, and a top plate is fixedly connected to the top end of the second supporting rod; a placement seat is fixedly connected to the center of the top of the top plate, an arc-shaped notch is formed in the placement seat, a placement groove is formed in the bottom of the arc-shaped notch, a control assembly is arranged in the placement groove, an electric heating net is arranged on the arc-shaped notch, a cushion is bonded to the electric heating net, a fixing assembly is mounted at the top of the top plate, and two groups of waste barrels are arranged at the top of the base; and a plurality of blood collection tubes can be placed at the same time, medical staff do not need to hold the blood collection tubes with hands, operation of the medical staff is facilitated, besides, the control assembly is arranged, after the arms of a patient re placed on the placement eat, the control assembly is started, a cushion is heated through the electric heating net, and discomfort of the patientcaused by too low temperature is avoided. The arms of the patient are fixed through the fixing assembly.

The invention provides a fixing device for children's external jugular vein blood collection, which relates to the technical field of medical equipment. The pediatric external jugular vein blood collection fixture includes a support collar, a corrugated plate is fixedly connected in the middle of the support collar, a notch is opened on the left side of the support collar, and connecting rods are fixedly installed on the left and right sides of the notch. The inner side of the connecting rod is provided with first sawtooth, the outer periphery of the connecting rod is covered with a cover plate, the inside of the cover plate is rotatably connected with a gear, and the center of the gear is fixedly installed with a first knob. The pediatric external jugular vein blood collection fixation device can support the patient's neck, so that the patient's neck will not bend and rotate, thereby reducing the difficulty of needle insertion and improving the success rate of blood collection. The way of crying enables the patient's jugular vein to be fully exposed, which is conducive to blood collection and reduces the pain of the patient.

The invention discloses a blood collection device with a hook fixing function for animal husbandry and veterinary sick pigs, and relates to the technical field of livestock blood collection. The blood collection device for animal husbandry and veterinary sick pigs with a hook fixing function includes a base, four right angles on the top of the base are fixedly connected with fixing columns, and the front and rear sides of the top of the base are respectively embedded with the bottom of the placement mechanism. Two-way threaded rods are movably installed between the two fixed columns on the left and right sides of the top of the base on the front and rear sides, respectively, and forward and reverse motors are fixed on the two fixed columns on the top of the base near the front of the base. . The animal husbandry and veterinary sick pigs use a blood collection device with a hook fixation function. The two retractor mechanisms that move toward the piglets' forelimbs are in a vertical and flat shape to contact the forelimbs and squeeze the piglets' forelimbs to straighten back. A retractor mechanism moves toward the rear limb of the piglet to separate the rear limb of the piglet in a figure-eight shape, and quickly completes the preparation for the anterior vena cava blood collection method.

The invention provides a vacuum blood sampling knife which comprises a blade, a knife handle, an infusion tube, a negative pressure box, a driving box and a driving device. The knife handle is fixed at the rear end of the blade; the infusion tube is arranged on the inner side of the blade and provided with a one-way valve; the infusion tube is arranged on the inner side of the blade and provided with a one-way valve; and the one-way valve opening is located in the negative pressure box. The driving box is arranged close to the negative pressure box, a rotating block is arranged in the driving box, one end of the rotating block is connected with the rotating column, the other end of the rotating block is connected with the driving device, the driving device comprises a driving rod, a driving disc and a driving handle, the rotating block is connected to the driving rod, one end of the driving rod penetrates through the driving box to be connected with the driving disc, and the driving handle is installed at the non-circle-center position of one end of the driving disc and shakes to drive the rotating block to rotate. The blood sampling knife is flexible to operate, and the blood sampling safety is effectively improved.