32 results about "Blood contamination" patented technology

The automatic chicken killing and cold fresh processing production line comprises a conveying belt and a blood receiving groove, a poultry scalding pool is arranged on the left side of the blood receiving groove, a depilating machine is arranged on the left side of the poultry scalding pool, a spiral pre-cooling machine is arranged on the left side of the depilating machine, a first protection box body is arranged on the lower portion of the conveying belt, and a second protection box body is arranged on the lower portion of the conveying belt. And the rear side of the first protection box body is fixedly connected with a mounting machine body. According to the utility model, the electric stunning device and the killing device are respectively arranged in the first protective box body and the second protective box body, so that the two key processes are effectively isolated, the electric stunning device is prevented from being polluted by poultry blood, and the risk of short circuit of electrical equipment caused by blood pollution is reduced; the water receiving grooves are formed in the bottoms of the first protection box body and the second protection box body, so that liquid generated in the treatment process can be collected in time, and the equipment is kept clean.

The invention discloses continuous blood purification equipment, and belongs to the technical field of medical equipment, the continuous blood purification equipment comprises a blood purification assembly, the blood purification assembly comprises a perfusion device, the upper end and the lower end of the perfusion device are fixedly connected with hard insertion ports, a flexible infusion tube is inserted into the hard insertion port in the lower side, and a sealing monitoring assembly is fixedly connected to the flexible infusion tube; the left side wall and the right side wall of the sealing monitoring assembly are provided with two clamping torsion guiding assemblies, the sealing monitoring assembly is communicated with an acousto-optic reminding assembly, and when the flexible infusion tube is separated from the hard inserting opening, the clamping torsion guiding assemblies can be used for automatically sealing the flexible infusion tube; meanwhile, the communicating catheter is opened in cooperation with the clamping and sealing assembly, so that blood can temporarily flow into the communicating catheter, blood pollution can be avoided, blood can be effectively stored, follow-up blood return is facilitated, and negative effects on health of a patient are reduced.

The invention relates to the technical field of medical detection, and discloses a prostate cancer noninvasive detection device which comprises a detector, an electric push rod is arranged on the top wall of the detector, a carrier plate is fixedly mounted at the bottom end of the electric push rod, a mounting groove is formed in the top wall of the detector, and a ball head sleeve is fixedly mounted in the mounting groove; a ball head is arranged in the ball head sleeve, a probe is arranged in the middle of the ball head, a swab is arranged outside the probe in a sleeving mode, and a limiting assembly for limiting the position of the swab is arranged outside the carrier plate. According to the invention, when the test tube pulls the probe due to misoperation in the detection process, the probe can be avoided, so that the probe is prevented from being damaged by pulling, the operation fault tolerance is improved, blood attached to the probe can be air-dried and solidified in cooperation with the anti-throwing-out assembly when the probe is avoided, and when the probe is reset and instantly stopped, the probe is prevented from being damaged. The condition that the blood is thrown outwards is avoided, and the blood is prevented from polluting the outside of the detector.

The utility model discloses a device for preparing platelet-rich plasma suspension and gel containing blood cells. Comprising a fixing frame, at least one rapid clamping pipe clamp installed on the fixing frame, a vacuum centrifugal pipe clamped in the rapid clamping pipe clamp, and two suction devices capable of being inserted into the centrifugal pipe from the top or the bottom of the centrifugal pipe. The pusher is used for pushing the aspirator to be inserted into the centrifugal tube; the rotating mechanism is used for driving the pusher to rotate so as to enable the aspirator to face the top or the bottom of the centrifugal tube; the utility model solves the problems of blood pollution, manual operation error and low extraction rate in the manual operation process in the prior art, retains all blood platelets and white blood cells in the blood, retains red blood cells in normal proportion and most plasma proteins, and improves the extraction efficiency. Moreover, the concentration of platelets and leukocytes is constantly about 4 times of the concentration of blood of common normal people, the functions of erythrocyte components are reserved, and the functional effects of various components in the blood can be better exerted.

The utility model discloses an isolation gas tank in the field of medical auxiliary appliances, which comprises a tank body, wherein the top of the tank body is provided with an extraction opening connected with an extraction gun, and an extraction sealing plug is arranged in the extraction opening; the isolation inner tank is arranged in the tank body, the isolation inner tank is isolated from the interior of the tank body through a soft diaphragm, and a tank opening of the isolation inner tank is provided with a flange used for wrapping the tank opening of the tank body; the blood suction cup has the advantages that the inner isolation cup is arranged, the blood suction cotton layer is filled in the inner isolation cup, sucked-out blood can be cleaned, the cup body is prevented from being polluted by the blood, and the blood suction cup is more convenient and safer.

The utility model discloses a high-sensitivity cardiac troponin I detection reagent card, and relates to the field of reagent cards. The sample pad comprises a shell, a rotating groove is formed in one side of the top of the shell, a convex groove is rotationally connected to the interior of the rotating groove through a rotating shaft, a sliding groove is formed in the bottom of the convex groove, and a sample pad is clamped in the sliding groove in a sliding mode. The sample pad can absorb temporarily stored blood and ensure that a sample can be subsequently transferred to the test paper strip, after the overturning convex groove is buckled back to the containing groove, the test paper strip is in close contact with the supporting block, and it is ensured that the blood can uniformly flow to the test paper strip; therefore, the accuracy and reliability of detection are improved, and the accuracy and integrity of subsequent operation are ensured.

The utility model relates to a foaming experiment connecting device, which belongs to the technical field of medical instruments and is used for solving the problems of environmental pollution caused by blood splashing and increase of occupational exposure risk of medical staff in the foaming experiment in the prior art. The foaming experiment connecting device comprises a connecting pipe assembly, connectors, an anti-splashing assembly and a connecting cavity, a remaining needle is communicated with the connecting cavity through the connecting pipe assembly, the two connectors are further arranged on the connecting cavity, and the anti-splashing assembly is connected with the connectors; the anti-splashing assembly comprises a fixed end, a shielding film and a shielding end, the shielding film is arranged between the shielding end and the fixed end, and the fixed end is connected with the connector. According to the utility model, blood splashed from the connecting port can be prevented from polluting the medical environment, so that the risk of occupational exposure of medical personnel is reduced.

The invention relates to the technical field of animal husbandry blood collection, and discloses a large animal blood collection and defibering integrated device which comprises a base frame, a sheep conveying assembly, a blood collection fixing assembly and an animal whole blood defibering assembly. According to the large animal blood sampling and defibering integrated equipment, the equipment integrates three core assemblies of sheep transportation, blood sampling fixing and blood plasma defibering, animals or blood sampling bags do not need to be manually transported, and the problem of operation fault caused by independent operation of traditional equipment is thoroughly solved, namely, after blood sampling, the blood sampling bags can be directly fixed to the animal whole blood defibering assembly; blood pollution and activity loss in the transfer process are avoided, and the overall operation duration is shortened compared with a traditional sub-equipment mode; meanwhile, the electric hoist sheep lifting mechanism replaces multi-person lifting, animal transfer can be completed by a single person, and the labor cost is reduced; the blood sampling fixing assembly is of a detachable sleeve structure, the size is reduced after disassembly, and the requirements for large-scale operation and portable storage are met.

The invention discloses a blood extraction and centrifugation integrated device in the field of medical instruments, which comprises a tank body, the top of the tank body is communicated with an inlet, the inlet is communicated with a blood transfusion tube, the bottom of the tank body is rotatably connected with a centrifugation structure, the side wall of the bottom of the tank body is communicated with a first outlet and a second outlet, the first outlet is communicated with a blood return tube, and the second outlet is communicated with a separation tube. The inner side wall of the tank body is slidably connected with a partition plate in the vertical direction, the partition plate divides the tank body into a centrifugal chamber and a plasma storage chamber, the centrifugal chamber is communicated with the plasma storage chamber through a siphon, the input end of the siphon is communicated with a valve, a piston of the valve is connected with an elastic rope, and the other end of the elastic rope is fixedly connected with the top of the partition plate. According to the scheme, the functions of centrifugation, separation and blood return are integrated in one tank body, and the whole process is not contacted with air, so that sealed centrifugation, sealed separation and sealed blood return are realized, the blood can be prevented from being polluted, and the safety in an autologous platelet-rich plasma process is ensured.

This invention relates to a quick-change device and a surgical robot. The quick-change device includes: a first mounting assembly including a first mounting base mounted on the end of a robotic arm; a second mounting assembly including a second mounting base disposed on the end of a surgical instrument, the second mounting base being detachably mounted on the first mounting base; and a wireless transmission assembly including a transmitting component and a receiving component. The transmitting component is disposed on the first mounting base and electrically connected to the controller of the robotic arm, and the receiving component is disposed on the second mounting base. After the first and second mounting bases are connected, the transmitting component and the receiving component wirelessly power and transmit signals. This enables the rapid installation, removal, and replacement of surgical instruments. Simultaneously, the use of a wireless transmission component for non-contact transmission of power, control, and other signals ensures the entire quick-change device is sealed, reducing blood contamination.

The present invention relates to the field of kits, and particularly discloses a hypersensitive inflammation detection kit, which comprises a detection box, the detection box is provided with an injection assembly for extracting a blood sample, the injection assembly is provided with a connection assembly, the connection assembly is provided with a rotation assembly, the output end of the rotation assembly is provided with a suction pipe, and the suction pipe is connected with the detection box. And a detection groove is formed in the detection box. The kit is miniaturized, so that integrated detection of the kit is realized, convenience is brought to operation of medical staff, participation of the medical staff is reduced, protection to the medical staff is improved, risks of exposure and infection of blood samples are reduced, contact time of the blood samples and air is greatly shortened, preservation of the blood samples is facilitated, and the kit is convenient to use. The detection accuracy is improved, the detection effect is improved, detection of hypersensitive inflammation by medical staff is facilitated, the disinfection effect can be achieved, blood pollution caused by exposure or breakage of the detection box is avoided, and the post-processing capacity of the kit is improved.

The utility model provides a glucometer, which belongs to the technical field of glucometers and comprises an upper shell, a penetrating opening is arranged on the surface of the upper shell, a connecting component is arranged on the inner wall of the upper shell and is used for connecting and limiting the upper shell and a lower shell, a pushing component is arranged below the upper shell and is used for pushing test paper, and the test paper is arranged in the penetrating opening. The pushing assembly comprises a lower shell, two sets of male buckles are symmetrically arranged on the edge of the lower shell, two sets of limiting columns are symmetrically arranged on the inner wall of the lower shell, multiple sets of screw cylinders are symmetrically arranged on the inner wall of the lower shell, the limiting columns are sleeved with a circuit board, and conductive silica gel is welded to the top of the circuit board. A display screen is arranged on the top of the conductive silica gel, and a battery body is arranged in the bottom of the lower shell. Through the arrangement of the pushing assembly, a user can conveniently push test paper out of equipment without pulling out the test paper with effort, fingers or instruments are prevented from being polluted by blood, and the risk of cross infection is reduced.

The invention discloses a portable deer blood sterile collection and preservation device which comprises a portable box structure, the portable box structure comprises a box body, and the top surface of the interior of the box body is sleeved with an upper-layer placement groove; according to the collection and storage structure, the vacuum blood collection bin and the vacuum blood storage bin are integrated together and separated through the partition assembly, blood enters the vacuum blood collection bin after blood collection, and during storage, the short tube is opened through the partition assembly, so that the blood is transferred into the vacuum blood storage bin, and the blood is in a closed state during transfer; a self-locking female connector assembly is arranged in the collection and storage structure, a self-locking male connector assembly is arranged in the blood taking needle structure, blood taking is carried out through connection of two connectors, the mode that the tail end of a needle tube is inserted into a traditional vacuum blood taking device is abandoned, and therefore when the collection and storage structure is continuously replaced for blood taking, after the collection and storage structure is pulled out, blood taking can be carried out conveniently. The self-locking male connector assembly is immediately closed, so that the condition of blood pollution in the process is avoided, and the sterile blood collection is realized by the device.

The blood sampling device comprises a blood sampling tube, a blood sampling rod is arranged on the inner side of the blood sampling tube, a blood sampling hole is formed in one end of the blood sampling tube, one end of the blood sampling tube is fixedly connected with a blood sampling connector, and a blood sampling hose is connected to the outer side of the blood sampling connector in an inserted mode. The other end of the blood sampling hose is connected with a blood sampling needle in an inserted mode, one side of the blood sampling tube is communicated with a blood discharging connector, the inner side of the blood discharging connector is spirally connected with a connecting tube, and the other end of the connecting tube is communicated with a collecting bottle; the blood collection needle with the blood collection hose is inserted into an animal body, the connection distance between the blood collection needle and the blood collection tube is prolonged, the situation that the blood collection tube is unstable due to the fact that the needle is fixedly connected with the blood collection tube during blood collection and the animal is stimulated is avoided, the situation that blood collection work is affected is avoided, blood can be discharged into a collection bottle in time after blood collection, and the blood collection effect is good. Under the action of the sealing plunger and the cleaning spring, the sealing performance can be guaranteed, blood backflow and the like are prevented, and the probability of blood pollution caused during transfer is reduced.

The extension device comprises a dialysis remaining needle connecting pipe, one end of the dialysis remaining needle connecting pipe is connected with one end of a hard pipe in a sealed mode, and the other end of the hard pipe is connected with one end of a second extension pipe hose in a sealed mode. A clamping and closing device for closing or opening a passage in the second extension tube hose is arranged on the outer side of the second extension tube hose, and a silica gel blood sampling opening is formed in the middle of one side of the hard tube. The remaining needle for dialysis is easy to operate, the remaining needle for dialysis is lengthened, the clamping function is added, blood loss of a patient in nursing operation is effectively avoided, the silica gel blood sampling opening is additionally arranged, blood sampling of the patient is facilitated, and the two hands of medical staff are prevented from being polluted by the blood of the patient.

The utility model relates to the field of medical instruments. The utility model aims at providing a special thoracic cavity puncture outfit which comprises a puncture sheath tube and a puncture core rod inserted in the puncture sheath tube, the puncture sheath tube is in a flat tube shape or a round tube shape, and the puncture core rod is in a flat rod shape or a round rod shape. A flow guide groove for guiding the flow direction of blood is formed in the outer wall of the puncture sheath tube, and the flow guide groove spirally extends along the peripheral wall of the puncture sheath tube. The flow guide groove is matched with the blood storage groove, so that the flow direction of blood is effectively guided, the blood is prevented from polluting an endoscope lens, and the operation view is kept clear; through the cooperation of the flat tubular puncture sheath tube and the flat rod-shaped puncture core rod, the puncture device is more suitable for narrow intercostal space positions such as the rear chest wall, and the effect of reducing intercostal nerve and blood vessel injuries is achieved.

According to the blood data collection method and system based on the block chain technology provided by the invention, since the collection network performs collection through artificial intelligence and has the standard specified abnormal data, the collection of the blood pollution data is that the feature description fragments are collected according to the collection instruction and the specified abnormal data, and the collection efficiency is improved. Therefore, the collection process is more detailed and accurate, the feature description fragment is identified from the to-be-collected blood sample data, and finally, the collection result obtained by collecting the feature description fragment is fed back to the to-be-collected blood sample data, so that the collection of the blood pollution data in the obtained blood sample data collection result is accurate.

1. The name of this design product: Universal suction cutting pliers (disposable). 2. Application of the product with this design: It is used for separation, pulling, dragging, and removal of diseased tissue in deep and narrow surgical fields (or in environments with blood contamination) during endoscopic (or microscopic) surgery, as well as for cleaning blood contamination in the surgical field. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The application discloses a lower limb femoral artery open injury rapid hemostasis device, which comprises an artery compression structure, and first and second bandages are respectively arranged on the left and right sides of the artery compression structure; the artery compression structure comprises a sleeve seat, a threaded push column, a rotating structure and a fixed handle; the bottom end of the threaded push column is provided with a compression head; and the rotating structure comprises a rotating column, a shifting strip, a top cover, a bottom cover and a movable handle. Through the rotating structure and the shifting strip, the artery compression structure is bound, and the rotating structure can be used for unidirectionally shifting the threaded push column under the action of the shifting strip through repeated rotation of the movable handle after the artery compression structure is bound, so that the threaded push column drives the compression head to gradually compress the lower limb artery of the wounded person, the purpose of compression hemostasis is achieved, and the situation that the gloves of medical staff cannot be rotated due to blood contamination, so that the wound of the wounded person cannot be timely hemostasis, is prevented.

We provide a blood collection system that prevents blood contamination. [Solution] The blood collection system comprises an adapter having a distal port, a first proximal port, and a second proximal port, and a blood collection device connected to the first proximal port, the blood collection device comprising a body having a distal end, a proximal end, and a longitudinal axis extending between them, a septum disposed within the body, a cannula having a distal end and a sharp proximal end and extending through the septum, an elastomer sleeve coupled to the body and covering the sharp proximal end of the cannula, an air pipe extending through the septum, and an air membrane disposed proximal to the air pipe, wherein the air priming pathway comprises the air pipe and the air membrane, and a separate blood collection pathway comprises the cannula.

A magnetic type sterile anti-permeation reusable anti-slip retaining pocket comprises retaining pocket cloth, a surgical operation opening is formed in the retaining pocket cloth, double rows of magnetic buckles are installed at the tail end of the retaining pocket and embedded into the retaining pocket cloth, and the size of the exposed area of a surgical site can be adjusted through magnetic buckling of the magnetic buckles at different positions. Side pockets are arranged on the two sides of the front face of the pocket blocking cloth, and the pocket blocking cloth is of a three-layer structure and comprises bottom-layer twill, middle-layer waterproof cloth and surface-layer twill. The surface layer and the bottom layer of the pocket blocking cloth are made of twill cloth, the middle layer of the pocket blocking cloth is made of waterproof cloth, and the pocket blocking cloth is waterproof, capable of preventing blood pollution, soft in material, convenient to use and capable of being repeatedly used, saves resources, achieves the principle of timely isolation of tumor resection positions and has the effect of preventing tumor diffusion pollution.

The present invention provides improved devices for biopsy, aspiration, stem cell acquisition, and methods of using the same. The devices balance aspiration with concurrent infusion to manage changes in pressure at the site of biopsy. The present invention can be adapted for any biopsy, aspiration, or cell harvest procedure, including adipose tissue aspiration and bone marrow aspiration (BMA). In particular, the present invention limits patient pain, prevents blood contamination, and increases cell mobilization, such as improved stem cell yields with intraosseous (10) pharmacological mobilization of stem cells during a BMA procedure, and with improved stem cell yields using pharmacological mobilization of stem cells from fat. The pharmacological mobilization of cells allows the harvest of cells from a biopsy many fold larger than existing methods.

The utility model relates to a combined type artery blood sampling device which comprises a puncture drainage portion, a blood sampling portion, a blood sampling portion, a blood sampling portion, a blood sampling portion, a blood sampling portion and a blood sampling portion, and the puncture drainage portion comprises an artery indwelling needle and a drainage tube used for draining blood. The collecting part comprises a first needle cylinder which is arranged at the other end of the drainage tube and is used for extracting return blood, and a second needle cylinder which is arranged on the side wall, close to the other end, of the drainage tube and is used for extracting arterial blood; the switching part is arranged on the side wall, close to the other end, of the drainage tube, located between the first needle cylinder and the second needle cylinder and used for switching the passage state of the first needle cylinder and the passage state of the second needle cylinder. According to the utility model, the two needle cylinders with different purposes are combined together, and the passage states between the two needle cylinders and the drainage tube are creatively switched, so that the three steps of extracting return blood, extracting arterial blood and re-injecting the return blood can be completed without repeatedly pulling and inserting the needle cylinders, the steps of collecting the arterial blood for a seriously ill patient are effectively simplified, and the working efficiency is improved. The problems of blood pollution and the like are also avoided.

The utility model belongs to the field of medical instruments, and discloses a system for loading nitric oxide in vitro on blood, which enables an artificial membrane lung to be connected with a rolling pump and a blood collecting bag, and realizes that mixed gas of NO and O2 is introduced into the artificial membrane lung through the synergistic effect of the artificial membrane lung, the rolling pump and the blood collecting bag, so that the blood oxygenation function is effectively realized. By arranging the blood storage bag and the blood collection bag, an in-vitro NO closed-loop load system of blood is formed, the closed-loop load system only needs to operate the blood once, the probability of blood pollution is reduced, all the components are connected through the connectors, certain flexibility is achieved, and the blood collection bag is convenient to use. Therefore, the device can be suitable for different medical scenes and patient requirements.

The invention discloses an intelligent dialysis machine replacement liquid pipeline installation and detection device, and relates to the technical field of medical instruments, the intelligent dialysis machine replacement liquid pipeline installation and detection device comprises a retention pot, the top end of the retention pot is movably connected with a cover plate, the bottom of the retention pot is fixedly connected with an eduction tube, and the cover plate is fixedly connected with an induction tube and a replacement liquid induction tube. A guide-in groove is formed in the cover plate, and the replacement liquid guide-in pipe is communicated with the interior of the retention pot through the guide-in groove. When the liquid level in the retention pot rises, the sealing plug can gradually move upwards along the sliding rod under the action of buoyancy until the sealing plug enters the guide-in groove, blockage is formed, the possibility of blood backflow is reduced, meanwhile, the warning mechanism gives an alarm to remind medical staff to take measures in time, blood backflow is avoided, and the medical staff can be prevented from being injured. The inside of the blood filter and a bacterial filter are polluted by blood, and the dialyzer is coagulated and ruptured in membrane, and the like.

The utility model provides an improved blood transfusion apparatus which comprises a blood transfusion needle head, a needle head inner sleeve cap, an exhaust valve, a blood transfusion clamp, a primary filter screen, a secondary filter screen, a needle-pricking-injury-preventing needle head protection cap and a blood transfusion apparatus plug, the shape and a needle hole of the blood transfusion needle head are improved, and a blood transfusion bag is prevented from being punctured. The lengths of the two sides of the Y-shaped blood transfusion apparatus and the color of the blood transfusion clamp are changed, so that medical staff can better distinguish the blood transfusion apparatus, the liquid level is between the upper line and the lower line of the Murphy's dropper during exhausting by changing the shape of the filter screen, increasing the upper line and the lower line, the filtering effect during blood filtering is guaranteed, and the blood transfusion apparatus can effectively prevent micro-polymers from entering blood and avoid blood pollution due to twice filtering. And the infusion reaction of blood and blood products is reduced.

The invention discloses a peripheral blood sampling device for monitoring brain disease markers, and relates to the field of blood sampling, the peripheral blood sampling device comprises a box body, a finger fixing device with one end communicated with the box body, and a puncturing device, a movable finger wiping device and a blood collecting device which are sequentially arranged in the box body from top to bottom and located at one end of the finger fixing device. According to the peripheral blood sampling device, finger puncturing can be automatically carried out, the punctured first drop of blood is wiped and removed, subsequent pure blood is obtained in a gravity drainage mode, blood pollution is effectively avoided, and rapid sampling of the pure blood is achieved.

The present invention provides a medical closed negative pressure invasive operation cabin, including an airtight flexible film at the bottom layer and a foldable cover sealed on the film, the cover can be composed of five independent plates, transparent tape is pre-attached on the inside and outside, folded when packaged, small in size, and can be quickly assembled when used to form a surgical operation space; an opening is provided on the flexible film to expose the surgical wound surface in the transparent sealed operation cabin, and a circle of tape close to the edge of the opening is provided on the lower surface of the flexible film; two highly consistent operation ports are provided on the left and right sides of the transparent sealed operation cabin; the transparent sealed operation cabin is provided with an air inlet, an exhaust port and a liquid inlet. The present invention can quickly construct a closed surgical operation space in a simple clinical scenario, effectively isolating pollution such as aerosols, respiratory secretions and blood, and the foldable design is also convenient for rapid transportation and activation in the event of an outbreak.

The present invention belongs to the technical field of surgical reducers for bovine abomasum left displacement, specifically a surgical reducer for bovine abomasum left displacement with an external endoscope, comprising a protective shell, a support and a needle storage mechanism, the tail of the protective shell is threadedly connected with a tail cover, the tail cover is fixedly connected to a control handle through an air pipe, the tail of the control handle is connected to an air source, a cylinder is plugged into the middle of the tail cover, a support is installed inside the protective shell, a needle storage mechanism is arranged on one side of the support, the needle storage mechanism comprises a needle storage bin installed on the surface of the support, a needle outlet is arranged on the edge of the side of the needle storage bin away from the support, and a rotating disk is movably connected in the middle of the support. The present invention facilitates switching of stored reset needles for puncture and lead-out operations, preventing the reset needle from being stuck in the cow's abdomen; it facilitates and easily pulls the suture, without the need to remove and separate the reset needle and the suture, reducing the difficulty of untying the buckle; at the same time, there is no need to pull the reset needle back and forth to pierce the cow's abdomen, preventing the interior of the present invention from being contaminated by the body fluids or blood in the cow's abdomen.

The blood gas needle assembly comprises a blood taking needle, an injector and a cap, the blood taking needle is provided with a needle head and a pintle, the injector is provided with a nipple and a connecting base arranged beside the nipple, the pintle and the cap are both matched with the nipple, the pintle is provided with a first connecting part used for being detachably connected with the connecting base, and the cap is provided with a second connecting part used for being detachably connected with the connecting base. The cap is provided with a second connecting part used for being detachably connected with the connecting base. After blood sampling is completed, the blood sampling needle is detached from the syringe, then the cap is covered, the second connecting portion is connected with the connecting base, then the blood sampling needle is submitted for inspection, the blood sampling needle cannot be submitted for inspection along with the syringe during inspection, infection caused by the fact that a needle head stabs medical staff in the inspection process is prevented, and a needle tip of the needle head does not need to be sleeved with a needle tip protective sleeve. The needle point does not face the hand of the medical worker, so that the risk that the medical worker is punctured is reduced; the cap is arranged so that contact between outside air and the nipple can be blocked, and the risk that blood in the injector is polluted is reduced.