251 results about "Vacutainer" patented technology

The invention relates to the technical field of clinical medical instruments, in particular to a vacuum blood collection tube and a method thereof capable of directly separating blood plasma. The vacuum blood collection tube comprises a blood collection tube body, an inner tube, a rubber plug and a filter element. The vacuum blood collection tube is characterized in that the blood collection tube inner tube is arranged in the blood collection tube body, the rubber plug is disposed at the top of the blood collection tube body, the structure of the rubber plug is close to a plug shape, a semicircle groove is disposed at the center of the upper portion of the rubber plug structure, left and right ends of the lower portion of the rubber plug are embedded into the blood collection tube body to be connected with the blood collection tube inner tube, a blood plasma outlet is disposed in the middle of the bottom of the blood collection tube inner tube, a blood plasma collecting chamber is mounted below the blood plasma outlet, a filtering membrane is arranged on the upper portion of the blood plasma outlet of the blood collection tube inner tube, the filter element is arranged on the upper portion of the filtering membrane, a buffer plate is mounted on the filter element, consequently a blood collection chamber is formed in the blood collection tube inner tube, and a layer of anticoagulant is disposed on the inner wall of the blood collection tube inner tube. The vacuum blood collection tube and the method thereof capable of directly separating the blood plasma have the advantages that physical form differences of blood visible components and plasma components are utilized, the blood plasma can be rapidly separated, and the vacuum blood collection tube and the method thereof are simple, convenient, safe and rapid.

The invention discloses an automatic labeling and vacuum blood collection tube distributing device, which comprises a rack, a blood collection tube placement frame, a blood collection tube placement frame Y-direction linear movement device, a blood collection tube capturing claw, a blood collection tube capturing claw X-direction linear movement device, a blood collection tube capturing claw Z-direction linear movement device, a labeling device and a blood collection tube distributing box. The device has the technical effects that by the device and a method, the types or model numbers of vacuum blood collection tubes are automatically screened and identified, labels with specified contents are automatically stuck to tube walls of the vacuum blood collection tubes, and then the vacuum blood collection tubes are distributed to specified positions; therefore, the blood collection tube distributing accuracy is improved, and the technical problem of low distributing efficiency after manual labeling is solved.

A safety-sheathed blood sampling needle for use with a standard vacutainer. The needle is housed in a protective hollow body and held in place with a non-tensioned elastic band. The needle may be extended outside the cover for use without removing the cover assembly from the needle, and may be locked into the use position with one hand. Moving the needle into the use position tensions the elastic band. After the sample is taken, the needle is unlocked and retracted back into the cover by the elastic band. Upon such retraction, the element used to extend the needle is either concealed or disconnected to prevent accidental reuse of the needle.

The invention discloses a blood collection tube uncovering and covering all-in-one machine and a blood collection tube rack of the blood collection tube uncovering and covering all-in-one machine. In operation, blood collection tube bodies and blood collection tube caps of vacuum blood collection tubes are respectively clamped through a blood collection tube body clamping device and a blood collection tube cap clamping device, wherein the blood collection tube body clamping device controls the separation of a plurality of abreast gripper components through a first motor, and therefore the vacuum blood collection tubes can be placed in the gripper components, and the closing of the gripper components is controlled to guarantee that the blood collection tube bodies of the vacuum blood collection tubes are stably clamped; and meanwhile, the blood collection tube cap clamping device controls a third worm gear and third worm component to work through a third motor so as to achieve the opening and closing of the blood collection tube caps of the vacuum blood collection tubes. Through the structural design, the blood collection tube uncovering and covering all-in-one machine and the blood collection tube rack of the blood collection tube uncovering and covering all-in-one machine can reduce biohazards, improve safety production capability, reduce manpower cost, improve labor efficiency, promote the automation, the informatization and the intelligentization levels of medical laboratories, reduce resource cost, and improve work efficiency.

The invention relates to an internal sticky mat membrane vacuum plain tube comprising a vacuum test tube, a seal diaphragm and an elastic cushion. The elastic cushion is arranged in a vacuum test tube chamber, coated with silastic directly, self-shaped and adhered to the inner surface of the seal diaphragm. The seal diaphragm and a test tube mouth are sealed. The outer surface of the seal diaphragm is designed to be concave for paracentetic needle guiding. The design of the built-in elastic cushion ensures that the cushion does not drop off or is polluted easily. In addition, the minimum puncture strength of a paracentetic needle can be realized for equipment protection and easy operation.

The invention discloses a vacuum test tube which comprises a vacuum tube containing hirudin as anticoagulant therein. The hirudin can be in the form of freeze-dried powder or spray-dried powder or aqueous solution, or modified with polyethylene glycol or encapsulated in liposome. The content of the hirudin in the vacuum tube is 100-2000 ATU per milliliter of blood. The hirudin has an amino acid sequence (see sequence 1 in the sequence table). The vacuum test tube of the invention is used in clinical biochemistry, clinical immunology, clinical hemorheology, immune prototype analysis, RT-PCR detection and clinical hematological examinations (except cruor parameters) and realizes versatility of laboratory examinations.

A vacuum blood collection tube (100) comprises a bottomed tube (101) composed of a low temperature resistant material that is less susceptible to low temperature fracture when cryopreserved at ultra-low temperature, a stopper (102) having a needle piercing portion (113) composed of a rubber material that can be pierced with a blood collection needle (110), and a cryopreservation cap (103) composed of the low temperature resistant material. Before blood collection, the stopper (102) is attached to the bottomed tube (101) to maintain the reduced pressure state inside the bottomed tube (101). Thus, blood collection by a vacuum blood collection method is possible. After blood collection, the cryopreservation cap (103) is attached to the bottomed tube (101), so that the liquid tight state of the bottomed tube (101) is maintained, and cryopreservation at ultra-low temperature as it is possible. Thus, the collected blood sample can be cryopreserved at ultra-low temperature as it is, without being transferred to another blood storage container, so that effort and burden on an operator can be significantly reduced.

The invention relates to the technical field of a clinical medical equipment, and particularly relates to a vacuum blood collecting tube capable of directly separating blood serum and a method for directly separating blood serum. The vacuum blood collecting tube comprises a blood collecting tube body, an inner tube, a rubber plug and a filter core. The vacuum blood collecting tube is characterized in that the inner tube of the blood collecting tube is arranged inside the blood collecting tube body; the rubber plug is arranged at the top part of the blood collecting tube body; the rubber plug is in structure similar to the shape of a plug shape; the upper center of the rubber plug structure is provided with a semicircle groove; left and right ends of the lower part of the rubber plug are embedded into the blood collecting tube body and connected with the inner tube of the blood collecting tube; a blood serum outfall is arranged at the bottom middle part of the inner tube of the blood collecting tube; a blood serum collecting room is arranged at the lower part of the blood serum outfall; a filter film is arranged at the upper part of the blood serum outfall on the inner tube of the blood collecting tube; the filter core is arranged at the upper part of the filter film, and a buffer plate is also arranged on the filter core, so as to form the blood collecting room in the inner tube of the blood collecting tube, and a layer of coagulation accelerator is arranged on the inner wall of the inner tube of the blood collecting tube. According to the invention, by utilizing the physical shape difference of a visible component of the blood and a blood serum component, the blood serum can be rapidly separated, and the method is simple, safe and fast.

A cap removal apparatus for a vacuum blood collection tube is configured to remove a cap from the collection tube of which an opening is closed by the cap so that the tube is kept under vacuum inside. The cap removal apparatus comprises, a tube clamping mechanism which clamps the collection tube upright in a cap removal position, a chuck mechanism which is disposed in the cap removal position and chucks the cap of the collection tube, seal pressure reduction unit which is disposed in the a chuck mechanism and configured to seal a region around the opening including the cap and reduce the pressure of the sealed region to substantially the same level as the internal pressure of the collection tube when the cap is chucked, and a lift mechanism which raises the chuck mechanism from a cap chucking position, thereby removing the cap from the collection tube.

This invention is a device which can be used to obtain a sample of blood from a person or animal. It incorporates parts of two existing devices (syringes and Vacutainers) into one device in a new configuration, and it reduces or eliminates some of the disadvantages of each of these two existing devices. Unlike the typical use of a syringe, a sample of blood is transferred directly from the blood vessel of a person or animal to the test tube or similar container that is sent to a laboratory for testing. Unlike a Vacutainer, the differential pressure between the two ends of a hypodermic needle can be controlled while the device is being used.

The invention discloses a table-top type printing labeling device for a vacuum blood collecting tube. The printing labeling device comprises a supporting platform. A blood collecting tube carrying conveying unit, a manipulator moving grabbing unit, a blood collecting tube positioning rotating unit, a labeling printer unit and a blood collecting tube storage unit are arranged on the supporting platform. A discharging port of the blood collecting tube carrying conveying unit is a material taking station of the manipulator moving grabbing unit. A feeding station of the moving grabbing unit is a positioning cavity, allowing a blood collecting tube to be placed, of the blood collecting tube positioning rotating unit. The blood collecting tube positioning rotating unit is matched with the labeling printer unit. The blood collecting tube storage unit is located in the discharging position of the blood collecting tube positioning rotating unit. According to the table-top type printing labeling device for the vacuum blood collecting tube, the labeling efficiency is high, consistency is good, and confusion is avoided.

Compositions and methods for separating a sample of whole blood or bone marrow aspirate into a fraction rich in at least one of platelets and pluripotent cells are provided. A sample of whole blood can be centrifuged in a collection tube comprising a separator substance formulated to settle between the PRP fraction and the at least one other fraction. Preferably, centrifugation is completed without substantial activation of platelets. Optionally, the separator substance could be hardened to form a solid barrier that allows removal of all or substantially all of the platelets in the PRP fraction without remixing of the PRP fraction with the at least one other fraction. Transfer devices and methods are also provided in which a sterile sample can be transferred from a separation/preparation container (e.g., vacutainer) to a consumer or other container (e.g., dropper) while maintaining sterility of the sample.

The invention relates to a breaking equipment used for a hematology department, in particular to a breaking equipment used for the vacuum blood collection tube of the hematology department. The invention aims to solve the technical problem of providing the breaking equipment, which can save time and labor, can improve breaking speed, can protect workers and is simple in operation and convenient inuse, used for the vacuum blood collection tube of the hematology department. In order to solve the technical problem, the invention provides the breaking equipment used for the vacuum blood collection tube of the hematology department. The breaking equipment comprises a base, supporting rods, a box body and the like, wherein the left side and the right side of the top of the base are respectivelyvertically connected with the supporting rod through bolts; the box body is connected between the top ends of the two supporting rods through bolts; the lower part of the front side surface of the box body is provided with a first opening; the front side surface of the box body of the left side of the first opening is connected with a cover plate through a hinge. According to the breaking equipment, a breaking device can be driven through a driving device to break a vacuum blood collection tube so as to achieve an effect on saving time and labor, improving breaking speed, protecting workers and being simple in operation and convenient in use.

The invention discloses a preservative for fetus free DNA in peripheral blood of pregnant woman and a vacuum blood sampling tube composed of the preservative. The problems of short storage time and easiness in degrading of the fetus free DNA in plasma caused by the shortage of mature collecting and storing technique for the in vitro test of the fetus free DNA in peripheral blood of pregnant woman are solved. The preservative provided by the invention comprises a cell stabilizing agent, an anti-coagulant agent, a buffering solution, a metabolic inhibitor and a DNA enzyme inhibitor. The preservative can stabilize the karyocyte of the peripheral blood of pregnant woman, can prevent the cell chromosome DNA from being released, can restrain DNA enzyme degradation and is beneficial to the stability of fetus free DNA.

The invention discloses a blood drawing needle. The blood drawing needle comprises a push rod, a puncture needle, a blood collection needle, a blood collection needle barrel, a piston and a vacuum blood collection tube. The front end of the blood collection needle barrel has a needle guiding tube; and the needle guiding tube has a needle hole. A piston retaining ring is connected to an central inner wall of the blood collection needle barrel; the piston is arranged in the blood collection needle barrel on the front of the piston retaining ring; a needle seat is arranged on the front side of the piston; and the front end of the needle seat is connected to the blood collection needle. The blood drawing needle is safe and clean and can improve the use safety; the front end of the blood collection needle protrudes out of the needle guiding tube, the blood collection needle penetrates a venous blood vessel of a physical examination student, the puncture needle can penetrate a needle point protective sleeve and a rubber tube cap and enters the vacuum blood collection tube; under the influence of negative pressure inside the vacuum blood collection tube, the blood in the venous blood vessel of the student flows into the vacuum blood collection tube, blood collection is completed, a push handle is released, the vacuum blood collection tube and the puncture needle are automatically detached, and the blood collection needle is automatically pulled out from the venous blood vessel of the student, and the convenience of blood collection operation of the student is enhanced.

The invention discloses a vacuum blood collection tube and a manufacturing method thereof. The manufacturing method of the vacuum blood collection tube comprises the steps as follows: a blood sampling test tube is vacuumized; carbon dioxide gas is added in the blood sampling test tube; in addition, the blood sampling test tube is vacuumized again so as to achieve needed vacuum degree, and the blood sampling test tube is sealed up by a rubber plug. According to the vacuum blood collection tube and the manufacturing method thereof, carbon dioxide gas mediums are injected in the blood sampling test tube, blood samples in the blood sampling test tube cannot be oxidized, and carbon dioxide in the blood samples cannot be separated out, so that the stability of the blood samples is ensured, and the accuracy of detection results can be improved.

The invention discloses a pre-diluted vacuum blood collection tube, which comprises a tube body and a tube plug, wherein a tube cap is arranged at the outer side of the tube plug; the tube body, which is sealed, is under a vacuum state; scale marks, which are used for marking capacity of the tube body, are arranged on the outer wall of the tube body; scale values, indicated by the scale marks, range from 9mL to 10.5mL, and a minimum division value is 0.1mL; and 9mL of sodium chloride injection or compound electrolyte injection is contained in the tube body. The invention also discloses a method for measuring platelet number in a patient with EDTA-dependent pseudo-thrombocytopenia with the application of the pre-diluted vacuum blood collection tube. The pre-diluted vacuum blood collection tube provided by the invention is simple in structure; the pre-diluted vacuum blood collection tube is designed with the precise scale marks; venous blood is diluted by liquid which is free from an anticoagulation, so that autologous antigen in an anticoagulation-induced and activated platelet membrane glycoprotein GPIIb structure, and a purpose of inhibiting platelet aggregation is achieved; and the pre-diluted vacuum blood collection tube, through a mode of vacuum blood collection, simplifies operations and avoids pollution, caused by open blood collection, to operators and environment.

The invention discloses a vacuum blood collection tube extraction machine. The vacuum blood collection tube extraction machine comprises a machine frame, wherein a blood collection tube drawer for containing blood collection tubes is arranged at the upper layer of the machine frame, blood collection tube extraction plates and driving devices, which serve as extraction mechanisms, are arranged at the lower layer of the machine frame, a grid baffle is arranged in front of the blood collection tube drawer, grids of the blood collection tube drawer extend to the front end of a bottom plate from the top end of the blood collection tube drawer, gaps among the grids are smaller than the diameters of the blood collection tubes, a blood collection tube placing rack is further arranged in front of the top of the grid baffle, the blood collection tube extraction plates move up and down along the gaps among the grids of the blood collection tube drawer under the drive of the driving devices, and the blood collection tubes fall into the blood collection tube placing rack when the blood collection tube extraction plates upwardly move to the top of the blood collection tube drawer. According to the vacuum blood collection tube extraction machine, the structure is simple, the mounting is convenient, the blood collection tubes, which are stacked in a mess, can be automatically extracted and be neatly placed in a manner that caps of the blood collection tubes face upwards consistently, so that the subsequent transfer, distribution, identification and management work for the blood collection tubes is greatly facilitated, the tedious labor of manual operation is reduced, the work efficiency is increased, the mistake of test tube specimens is avoided, and medical tangles are reduced.

The invention discloses an automatic blood sampling device and an automatic blood sampling method, and belongs to the technical field of medical apparatuses. The automatic blood sampling device comprises a housing, and a controller, wherein an arm placing region is arranged on the bottom wall of an inner cavity of the housing; blood sampling needles, vacuum blood sampling tubes, disinfectors, andbleeding stopping pastes are arranged in the inner cavity of the housing; a first mechanical arm, a second mechanical arm, an infrared blood vessel imaging instrument and an ultrasonic wave detector which are separately in communication connection with the controller are arranged on the top wall of the inner cavity of the housing; and a scanning opening of the infrared blood vessel imaging instrument and a probe of the ultrasonic wave detector face the arm placing region. Through the adoption of the automatic blood sampling device disclosed by the invention, the needling position, the needlingdirection and the needling depth can be accurately determined, and steps including disinfecting, puncturing, blood drawing, stopping bleeding and the like can be automatically performed, so that manual uncertainty can be avoided, and the success rate of puncturing for blood drawing is increased.

The invention discloses a blood leucocyte separating medium and application thereof, a preparation method of the blood leucocyte separating medium, and a blood leucocyte separating vacuum blood collection tube with the blood leucocyte separating medium and application thereof. The blood leucocyte separating medium comprises glucan T500, hydroxyethyl starch, meglumine diatrizoate, water, sodium citrate, NaN3, poly(diallyldimethylammonium chloride) and polyvinyl pyrrolidone, the proportion of parts by weight of which is 18.5-21.5:1.5-2.5:2-3:69:3.8:0.1:0.05-0.15:2-3. The invention has the advantages that clinical blood collection and anticoagulant leucocyte seperation can be completed at a time, the sodium citrate in the blood leucocyte separating medium and calcium ions in blood are chelate and anticoagulant, the technical problem of damaging the liquid level layer of the separating medium does not exit, a supernatant liquor is sucked up without needing centrifugation after natural precipitation, a complex cell seperation technology is transformed into a simple blood collection seperation process, the processes are easily united, the repeatability of test results is good, and the quality controllability is strong.

The invention discloses an automatic dryer for blood collection tubes. The automatic dryer comprises a drying module, a transmission set, an air control device, an electrical control device, an operation panel and a rack. The drying module comprises a heating box, a drying head, a drive unit and a drying support. The transmission set and the operation panel are both connected with the air control device and the electrical control device. The heating box is connected with the air control device. The drying head and the drive unit are both connected with the electrical control device. The drying heat is connected with the drive unit. An air pipe is connected between the heating box and the drying head. The drying head comprises a plurality of spray needles, a heat-preserving flow-guiding cavity and a flow-guiding distribution structure. The transmission set is provided with a tray sensing sensor and a tray stop device. By means of the automatic dryer, blood in the dried vacuum blood collection tubes can be fully fused with a reagent in a contact mode, the effect of medicament is maximized, more precise technical information is provided for clinical diagnosis, diagnostic accuracy is improved, and misdiagnosis risks are reduced.

The embodiment of the invention discloses a blood routine detector. The detector comprises an analyzer body, a sampling classification part arranged on the analyzer body and used for conveying and sequential arrangement of vacuum blood collection tubes of a plurality of patients, an isolation blood collection part used for carrying out on-site one-time blood collection among the patients, and a disinfection sampling chamber that is disposed between the sampling classification part and the analyzer body and is used for extraction operation on the blood in the vacuum blood collection tubes whichare arranged in sequence. According to the invention, a self-service fingertip blood collection mechanism is arranged on the machine body, a patient can autonomously collect blood, the working efficiency of blood sampling by nurses is improved, the sampling classification part is provided, nursing personnel can directly put the collected vacuum sampling tubes into a putting-in opening for automatic storage by the instrument, meanwhile, the tubes can be integrally disinfected, and the problem of detection precision of fingertip blood collection can be effectively avoided through the isolationblood collection part.

The invention discloses a novel vacuum blood collection tube cover opening and closing all-in-one machine. A blood collection tube body clamping block assembly is installed between a left supporting vertical board and a right supporting vertical board; a lifting servo motor drives a movable installation frame to move vertically; a movable plate is installed between a left movable rod and a right movable rod of the movable installation frame and provided with a blood collection tube cap clamping assembly; an in-and-out storehouse drive mechanism drives the movable plate to move front and back to achieve the in-and-out storehouse actions; and the blood collection tube body clamping block assembly comprises clamping block installation bodies, bidirectional screws, tube body clamping servo motors, first synchronous belt transmission mechanisms, tube frame placement strips, blood collection tube frames, springs and tube body clamping block sets. The blood collection tube cap clamping assembly comprises an upper clamping plate, a lower clamping plate, a releasing and clamping drive mechanism and compression springs. The novel vacuum blood collection tube cover opening and closing all-in-one machine is controlled by a touch screen of a sheet metal shell. By means of the structural design, the novel vacuum blood collection tube cover opening and closing all-in-one machine has the advantages of being novel in design, high in automation degree, easy and convenient to operate, high in safety and capable of effectively reducing the labor cost.

The invention relates to an apparatus used for detecting test tube leakages. The apparatus is provided with a support, a test tube sucker, a vacuum pump, a sucker overturn mechanism, a water tank and an electrical control bench. The sucker overturn mechanism comprises a motor, a decelerator and an overturn body. The test tube sucker is fixedly arranged on the overturn body and is respectively in three position states of vertical, sucker surface horizontal upward and sucker surface horizontal downward. The test tube sucker surface is neatly provided with a plurality of pores. An airway communicating with the pores is provided inside the test tube sucker. The airway is connected to the vacuum pump through a connecting flexible pipe. The water tank is provided on the support. According to the invention, the test tube sucker and the vacuum pump are adopted to adhesively fix a test tube. The overturn mechanism of the test tube sucker is used to drive the test tube sucker loading the test tube to overturn and position and the bottom of the vacuum-pumping test tube is immersed into the water tank so as to inspect whether leakages exist or not. The apparatus is characterized by simple structure, reasonable construction, convenient airtight detection, fastness, accuracy and reliability and high working efficiency and is particularly suited for leakage detections towards test tubes used as vacuum heparin tubes.