Improved neonatal blood collection tube

Abstract

The invention belongs to the technical field of blood collection tubes, and particularly relates to an improved neonatal blood collection tube which comprises a storage barrel, a blood collection tube body is arranged in the storage barrel, a guide groove is formed in the storage barrel, a strip-shaped frame corresponding to the guide groove is fixedly installed on the blood collection tube body, and a connecting plate is fixedly installed at the bottom end of the blood collection tube body. A piston block is fixedly installed at the bottom of the connecting plate, a positioning assembly is fixedly installed at the bottom end of the storage barrel, a limiting assembly is arranged in the storage barrel, and a rubber plate is fixedly installed on the strip-shaped frame. According to the improved neonatal blood collection tube, the position of the improved neonatal blood collection tube is conveniently fixed and limited through the arranged negative pressure groove, the blood collection tube body is pulled to drive the piston block to move, the interior of the negative pressure groove is in a negative pressure state, the position of the improved neonatal blood collection tube can be limited, and fixing and using are convenient; the convenience of the improved neonatal blood collection tube in the use period is improved, the improved neonatal blood collection tube is not limited to a storage rack for supporting and fixing any more, and the flexibility is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of blood collection tubes, in particular to an improved blood collection tube for newborns. Background Art

[0002] The improved neonatal blood collection tube is mainly used to collect blood samples from newborns. By collecting blood samples, some common metabolic diseases can be detected for early diagnosis and intervention, and whether the newborn has blood-related diseases. Neonatal blood collection is usually performed within a few days after birth to ensure timely identification and treatment of potential health problems. By using blood collection tubes designed specifically for newborns, it can be ensured that the blood collection process is safer and more efficient.

[0003] Patent application No. CN201911035284.7 discloses a blood sampling device for newborns, comprising an empty cylinder with a scale, a rubber stopper plugged at the top of the empty cylinder, a piston installed in the empty cylinder, a magnet fixedly installed at the lower end of the piston, and the blood sampling device also includes a clamping seat, the clamping seat includes a clamping part, a handle and a base, wherein the clamping part is used to clamp the empty cylinder, a guide rod is installed between the clamping part and the base, a support rod is fixedly installed at the upper end of the base, an adsorption part is fixedly installed at the top of the support rod, wherein an electromagnet is fixedly installed in the adsorption part; in the process of batch quantitative blood sampling, there is no need to manually observe the moving position of the piston or the real-time volume of blood in the empty cylinder, and the electromagnet is energized. At this time, the electromagnet adsorbs the magnet at the lower end of the piston to realize automatic movement of the piston for blood sampling, until the piston moves to the upper end surface of the adsorption part, and stops moving due to the limitation of the adsorption part. At this time, the electromagnet is stopped from being energized, and quantitative blood sampling of the empty cylinder is completed, thereby realizing automatic and accurate quantitative blood collection.

[0004] After searching the above patents, it was found that the neonatal blood collection tubes in the prior art still have the following deficiencies when in use: the neonatal blood collection tubes in the above patents are not convenient for fixing their own positions during use. When blood is collected from newborns, it is usually recommended that two medical staff cooperate in the operation. The two medical staff can cooperate with each other and prevent the newborn from moving suddenly during the blood collection process. At the same time, the position of the blood collection tube can be limited to avoid the blood collection tube from sliding, reduce the risk of needle sticks, ensure a smooth operation process, and improve overall efficiency. The cooperation of two medical staff is usually more conducive to ensuring safety and improving the success rate. In some small medical institutions or emergency environments, one medical staff member can complete neonatal blood collection, but most blood collection tubes can only be fixed and limited by a support frame, which has certain limitations on the use environment. Of course, the blood collection tube can also be placed on the desktop for blood drawing, but when no one fixes the position of the blood collection tube, accidental touch can easily cause the blood collection tube to slide and fall, and the protection is not ideal and has certain limitations. In addition, the blood collection tube slides and accidentally pulls the blood collection needle, which will cause the blood collection needle to accidentally separate from the blood collection site of the newborn during blood collection. Because the skin of the newborn is too delicate, it is easy to cause damage to the skin at the blood collection site.

[0005] To this end, the present invention provides an improved neonatal blood collection tube. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art and solve the problem that it is inconvenient to fix and support the position of the improved neonatal blood collection tube, the present invention proposes an improved neonatal blood collection tube.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the improved neonatal blood collection tube described in the present invention includes a storage tube, a blood collection tube body is arranged inside the storage tube, a guide groove is arranged inside the storage tube, a strip frame corresponding to the guide groove is fixedly installed on the blood collection tube body, and the strip frame is engaged with the guide groove, a connecting plate is fixedly installed on the bottom end of the blood collection tube body, a piston block is fixedly installed on the bottom of the connecting plate, a positioning assembly is fixedly installed on the bottom end of the storage tube, a limiting assembly is arranged inside the storage tube, a rubber plate is fixedly installed on the strip frame, a square groove is fixedly installed on the strip frame, and one end of the square groove passes through the piston block, and a sealing assembly is arranged on the blood collection tube body.

[0008] By adopting the above technical solution, pulling the blood collection tube body through the connecting plate will drive the piston block to move, and the piston block will fit with the inner wall of the storage tube and the guide groove, so that the air inside the positioning component can be extracted, so that the inside of the positioning component becomes a negative pressure, and the positioning component is fixed on a plane, so that the position of the improved neonatal blood collection tube can be limited, so that its position is convenient for fixed use.

[0009] Preferably, the blood collection tube body is provided with threads, a sealing cover is provided at the top of the blood collection tube body, and the sealing cover is threadedly connected to the blood collection tube body through the threads.

[0010] By adopting the above technical solution, the sealing cover is fixed on the blood collection tube body through the threaded teeth, thereby sealing one end of the blood collection tube body.

[0011] Preferably, the positioning assembly includes an annular block, a negative pressure groove and an exhaust pipe, the annular block is fixedly mounted on the bottom end of the storage tube, the negative pressure groove is arranged at the bottom of the annular block, the exhaust pipe is fixedly mounted inside the annular block, and one end of the exhaust pipe is connected to the negative pressure groove, and the other end of the exhaust pipe is connected to the storage tube.

[0012] By adopting the above technical solution, the moving blood collection tube body will drive the piston block to move through the connecting plate. When the piston block moves, the storage tube will extract the air inside the negative pressure tank through the vacuum pipe, thereby making the inside of the negative pressure tank a negative pressure state, and then the annular block will be adsorbed on the plane.

[0013] Preferably, a magnetic plate is fixedly installed inside the storage tube, and the magnetic plate is located on one side of the strip frame, and the strip frame is made of iron material.

[0014] By adopting the above technical solution, after the strip frame moves to a predetermined position, the magnetic force of the magnetic plate itself will limit the strip frame, thereby locating the position of the blood collection tube body.

[0015] Preferably, the limiting assembly includes a storage groove, a limiting block and a No. 3 spring, the storage groove is installed inside the storage tube, the limiting block is arranged inside the storage groove, the No. 3 spring is fixedly installed inside the storage groove, and the other end of the No. 3 spring is fixedly connected to the limiting block, and the connecting plate is provided with a limiting groove corresponding to the limiting block.

[0016] By adopting the above technical solution, after one end of the limiting block enters the limiting groove, the position of the blood collection tube body will be positioned.

[0017] Preferably, the sealing assembly comprises an annular groove and a sealing airbag, the annular groove is arranged on the blood collection tube body and is located above the thread teeth, and the sealing airbag is fixedly installed inside the annular groove.

[0018] By adopting the above technical solution, after the air pressure enters the interior of the sealing airbag, the volume of the sealing airbag expands, which will seal the gap between the sealing cover and the blood collection tube body, thereby improving the sealing performance.

[0019] Preferably, a No. 1 sealing block is provided inside the square groove, an L-shaped groove is provided inside the No. 1 sealing block, and the square groove is fitted with one end of the L-shaped groove to seal one end of the L-shaped groove, a driving rod is fixedly installed on the No. 1 sealing block, a No. 1 positioning block is fixedly installed inside the strip frame, a No. 1 slide groove corresponding to the driving rod is provided inside the No. 1 positioning block, and one end of the driving rod extends into the No. 1 slide groove, a No. 1 spring is fixedly installed inside the No. 1 slide groove, and the other end of the No. 1 spring is fixedly connected to one end of the driving rod.

[0020] By adopting the above technical solution, the movement of the No. 1 sealing block will drive the movement of the L-shaped groove, so that after the L-shaped groove moves out of the square groove, one end of the L-shaped groove will no longer be sealed, and the compressed air inside the storage tube will flow into the strip frame through the L-shaped groove. After the air pressure enters the strip frame, the volume of the rubber sheet will expand.

[0021] Preferably, a No. 2 positioning block is fixedly installed inside the strip frame, a No. 2 slide groove is arranged inside the No. 2 positioning block, a No. 2 spring is fixedly installed inside the No. 2 slide groove, a short rod is passed through the No. 2 slide groove, and one end of the No. 2 spring is fixedly connected to the short rod.

[0022] By adopting the above technical solution, the second spring is reset to push the short rod to move, and the movement of the short rod will drive the positioning plate to move synchronously.

[0023] Preferably, a support block is fixedly installed inside the strip frame, and a cylinder is passed through the support block.

[0024] By adopting the above technical solution, the support block is used to support the cylinder, and the cylinder is convenient for the ventilation pipe to move.

[0025] Preferably, a driving plate is penetrated inside the strip frame, a ventilation pipe is fixedly mounted on the driving plate, and one end of the ventilation pipe extends to the inside of the cylinder, a positioning plate is fixedly mounted on one end of the ventilation pipe, an air inlet hole is provided on the ventilation pipe, and the air inlet hole is in contact with the inner wall of the cylinder, an exhaust hole is provided on the ventilation pipe, a delivery hose is provided inside the strip frame, and one end of the delivery hose is connected to the exhaust hole, and the other end of the delivery hose is connected to the sealing airbag.

[0026] By adopting the above technical solution, the air inlet hole moves out of the cylinder, and part of the air inside the strip frame will flow into the ventilation tube through the air inlet hole. Through the cooperation of the exhaust hole and the conveying hose, the air pressure will flow into the sealed airbag. After the air pressure enters the sealed airbag, the volume of the sealed airbag expands, which will seal the gap between the sealing cover and the blood collection tube body.

[0027] The beneficial effects of the present invention are as follows: 1. The improved neonatal blood collection tube described in the present invention can be used to fix and limit the position of the improved neonatal blood collection tube by providing a negative pressure groove, so that after the positioning component is fitted with the plane, pulling the blood collection tube body will drive the piston block to move, and the storage cylinder will extract the air inside the negative pressure groove through the suction pipe, thereby making the inside of the negative pressure groove a negative pressure state, so that the annular block is adsorbed on the plane, and the position of the improved neonatal blood collection tube can be limited, so that its position is convenient for fixed use, thereby improving the convenience of the improved neonatal blood collection tube during use, and when using or storing the improved neonatal blood collection tube, it is no longer limited to the storage rack for support and fixation, thereby improving flexibility and preventing the blood collection tube from sliding and falling to cause damage to the skin of the neonatal blood collection site.

[0028] 2. The improved neonatal blood collection tube described in the present invention is convenient for improving the protection of the improved neonatal blood collection tube by providing a strip frame and a rubber plate. The reset of the piston block will compress the air inside the storage tube. When the pressure inside the storage tube reaches a predetermined pressure, the compressed air inside the storage tube will flow into the strip frame through the L-shaped groove. After the air pressure enters the strip frame, the volume of the rubber plate will expand, which can improve the protection of the blood collection tube body and prevent the blood collection tube body from being damaged by external factors, thereby achieving the purpose of improving the protection.

[0029] 3. The improved neonatal blood collection tube described in the present invention is convenient for improving the sealing performance of the improved neonatal blood collection tube by providing a sealing airbag. The sealing cover is rotated and the sealing cover continues to move downward through the threaded teeth, which in turn pushes the driving plate to move downward, causing the air inlet hole to move out of the cylinder. Part of the air inside the strip frame flows into the ventilation tube through the air inlet hole, and the air pressure flows into the sealing airbag through the cooperation of the exhaust hole and the conveying hose. After the air pressure enters the sealing airbag, the volume of the sealing airbag expands, which will seal the gap between the sealing cover and the blood collection tube body, thereby improving the sealing performance of the improved neonatal blood collection tube and effectively avoiding the loss of the collected blood sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 It is a stereoscopic diagram of the improved neonatal blood collection tube of the present invention; Figure 2 It is a structural schematic diagram of the storage tube in the present invention; Figure 3 It is a schematic diagram of the structure of the blood collection tube body of the present invention; Figure 4 It is a schematic diagram of the structure of the annular block in the present invention; Figure 5 It is a schematic diagram of the structure of the air extraction pipe in the present invention; Figure 6 It is a structural schematic diagram of the strip frame in the present invention; Figure 7 It is a structural schematic diagram of a No. 1 sealing block in the present invention; Figure 8 It is a structural schematic diagram of the storage tank in the present invention; Fig. 9 The present invention Figure 6 A is a schematic diagram of the structure enlargement; Fig.10 The present invention Figure 6 A schematic diagram of the structure of B in the middle; Fig.11 It is a structural schematic diagram of the driving plate in the present invention; Fig.12 It is a structural schematic diagram of the support block in the present invention.

[0032] In the figure: 1, storage tube; 2, guide groove; 3, blood collection tube body; 4, threaded teeth; 5, sealing cover; 6, strip frame; 7, connecting plate; 8, piston block; 9, annular block; 10, negative pressure groove; 11, suction pipe; 12, magnetic plate; 13, storage groove; 14, limit block; 15, No. 3 spring; 18, rubber plate; 19, limit groove; 20, annular groove; 21, sealing airbag; 22, square groove ; 23. Sealing block No. 1; 24. L-shaped groove; 25. Driving rod; 26. Positioning block No. 1; 27. Slide groove No. 1; 28. Spring No. 1; 29. ​​Positioning block No. 2; 30. Slide groove No. 2; 31. Spring No. 2; 32. Short rod; 33. Support block; 34. Driving plate; 35. Ventilation pipe; 36. Positioning plate; 37. Air inlet; 38. Delivery hose; 39. Exhaust hole; 40. Cylinder. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figures 1 to 8As shown, an improved neonatal blood collection tube according to an embodiment of the present invention comprises a storage tube 1, a blood collection tube body 3 is arranged inside the storage tube 1, a guide groove 2 is arranged inside the storage tube 1, a strip frame 6 corresponding to the guide groove 2 is fixedly mounted on the blood collection tube body 3, and the strip frame 6 is engaged with the guide groove 2, a connecting plate 7 is fixedly mounted on the bottom end of the blood collection tube body 3, a piston block 8 is fixedly mounted on the bottom of the connecting plate 7, a positioning component is fixedly mounted on the bottom end of the storage tube 1, a limiting component is arranged inside the storage tube 1, a rubber plate 18 is fixedly mounted on the strip frame 6, a square groove 22 is fixedly mounted on the strip frame 6, and one end of the square groove 22 passes through the piston block 8, and a sealing component is arranged on the blood collection tube body 3. When the improved neonatal blood collection tube is used to collect blood from a neonate, one end of the blood collection channel is connected to the blood collection tube body 3, and the other end of the blood collection channel is connected to a blood collection needle. After the blood collection needle is inserted into the blood collection site of the neonate, the collected blood will flow into the blood collection tube body 3 through the cooperation of the blood collection needle and the blood collection channel for collection. The purpose of blood sampling for newborns is thereby achieved. When the improved neonatal blood sampling tube is used for blood sampling and storage according to the blood sampling needs, it can be manually taken for blood sampling or placed on a flat surface for use. When the improved neonatal blood sampling tube is placed on a flat surface for blood sampling or temporary storage, the storage tube 1 is moved to make the positioning component fit with the flat surface, and the blood sampling tube body 3 is pulled through the connecting plate 7 to drive the piston block 8 to move. The piston block 8 fits with the storage tube 1 and the inner wall of the guide groove 2, and the air inside the positioning component can be extracted to make the inside of the positioning component become negative pressure, so that the positioning component is fixed and limited on the plane, and the position of the improved neonatal blood sampling tube can be limited, so that its position is convenient for fixed use, thereby improving the convenience of the improved neonatal blood sampling tube during use, and when using or storing the improved neonatal blood sampling tube, it is no longer limited to the storage rack for support and fixation, thereby improving the flexibility of the improved neonatal blood sampling tube, and the strip frame 6 is used to protect the blood sampling tube body 3 to improve the protection performance.

[0035] like Figure 2 and Figure 3 As shown, a threaded tooth 4 is provided on the blood sampling tube body 3, a sealing cover 5 is provided on the top of the blood sampling tube body 3, and the sealing cover 5 is threadedly connected to the blood sampling tube body 3 through the threaded tooth 4. The sealing cover 5 is fixed on the blood sampling tube body 3 through the threaded tooth 4, thereby sealing one end of the blood sampling tube body 3.

[0036] like Figure 2 , Figure 4 and Figure 5As shown, the positioning assembly includes an annular block 9, a negative pressure groove 10 and an air extraction pipe 11. The annular block 9 is fixedly mounted at the bottom of the storage tube 1, the negative pressure groove 10 is arranged at the bottom of the annular block 9, the air extraction pipe 11 is fixedly mounted inside the annular block 9, and one end of the air extraction pipe 11 is connected to the negative pressure groove 10, and the other end of the air extraction pipe 11 is connected to the storage tube 1. After the storage tube 1 is moved to make one end of the annular block 9 fit with the plane, the moving blood collection tube body 3 will drive the piston block 8 to move through the connecting plate 7. When the piston block 8 moves, the storage tube 1 will extract the air inside the negative pressure groove 10 through the air extraction pipe 11, thereby making the inside of the negative pressure groove 10 a negative pressure state, and then the annular block 9 is adsorbed on the plane.

[0037] like Figure 2 As shown, a magnetic plate 12 is fixedly installed inside the storage tube 1, and the magnetic plate 12 is located on one side of the strip frame 6, and the strip frame 6 is made of iron material. Moving the blood collection tube body 3 will drive the strip frame 6 to move. After the strip frame 6 moves to a predetermined position, the magnetic force of the magnetic plate 12 itself will limit the strip frame 6, thereby positioning the position of the blood collection tube body 3.

[0038] like Figure 2 and Figure 8 As shown, the limiting assembly includes a receiving groove 13, a limiting block 14 and a No. 3 spring 15. The receiving groove 13 is installed inside the receiving tube 1, the limiting block 14 is arranged inside the receiving groove 13, the No. 3 spring 15 is fixedly installed inside the receiving groove 13, and the other end of the No. 3 spring 15 is fixedly connected to the limiting block 14. A limiting groove 19 corresponding to the limiting block 14 is arranged on the connecting plate 7. The blood collection tube body 3 is moved to drive the connecting plate 7 to move synchronously. After the limiting groove 19 is located on one side of the limiting block 14, the No. 3 spring 15 is reset to push the limiting block 14 to move, and then one end of the limiting block 14 enters the limiting groove 19, which will locate the position of the blood collection tube body 3. A pull rope is connected to the center of the limiting block 14, extending out of the receiving groove 13. The limiting block 14 can be reset by pulling the pull rope, and the blood collection tube body 3 is no longer limited.

[0039] like Figure 3 As shown, the sealing component includes an annular groove 20 and a sealing airbag 21. The annular groove 20 is provided on the blood collection tube body 3, and the annular groove 20 is located above the thread teeth 4. The sealing airbag 21 is fixedly installed inside the annular groove 20. After the sealing cover 5 is installed above the blood collection tube body 3, the air pressure enters the sealing airbag 21, and the volume of the sealing airbag 21 expands, which will seal the gap between the sealing cover 5 and the blood collection tube body 3, thereby improving the sealing performance. A switch is provided on the sealing airbag 21 to discharge the gas inside the sealing airbag 21.

[0040] like Figure 6 , Figure 7 and Fig. 9As shown, a No. 1 sealing block 23 is provided inside the square groove 22, and an L-shaped groove 24 is provided inside the No. 1 sealing block 23, and the square groove 22 fits with one end of the L-shaped groove 24 to seal one end of the L-shaped groove 24, and a driving rod 25 is fixedly installed on the No. 1 sealing block 23, and a No. 1 positioning block 26 is fixedly installed inside the strip frame 6, and a No. 1 slide groove 27 corresponding to the driving rod 25 is provided inside the No. 1 positioning block 26, and one end of the driving rod 25 extends into the No. 1 slide groove 27, and a No. 1 spring 28 is fixedly installed inside the No. 1 slide groove 27, and the other end of the No. 1 spring 28 is fixedly connected to one end of the driving rod 25. After the blood of the newborn is collected, the sealing cover 5 is threadedly connected to the blood collection tube body 3 through the thread teeth 4, but the sealing cover 5 is not completely tightened on the blood collection tube body 3, and the blood collection tube body 3 is pressed to reset the blood collection tube body 3. At this time, the annular block 9 is closely fitted on the plane, and the piston block 8 will be driven to reset when the blood collection tube body 3 is reset. 8 will compress the air inside the storage tube 1. When the pressure inside the storage tube 1 reaches a predetermined pressure, the air pressure will push the No. 1 sealing block 23 to move. The movement of the No. 1 sealing block 23 will drive the L-shaped groove 24 to move, so that the L-shaped groove 24 moves out of the square groove 22, and then one end of the L-shaped groove 24 will no longer be sealed. The compressed air inside the storage tube 1 will flow into the strip frame 6 through the L-shaped groove 24. After the air pressure enters the strip frame 6, the volume of the rubber sheet 18 will expand, which can improve the protection of the blood collection tube body 3 and prevent the blood collection tube body 3 from being hit by external factors, resulting in damage to the blood collection tube body 3 and loss of the collected blood sample, thereby achieving the purpose of improving the protection. After the compressed air inside the storage tube 1 enters the strip frame 6, the No. 1 spring 28 is reset, which will push the driving rod 25 to reset. The reset of the driving rod 25 will push the No. 1 sealing block 23 to reset, and then the square groove 22 will be re-sealed.

[0041] like Fig.10 , Fig.11 and Fig.12As shown, a No. 2 positioning block 29 is fixedly installed inside the strip frame 6, a No. 2 slide groove 30 is arranged inside the No. 2 positioning block 29, a No. 2 spring 31 is fixedly installed inside the No. 2 slide groove 30, a short rod 32 is passed through the No. 2 slide groove 30, and one end of the No. 2 spring 31 is fixedly connected to the short rod 32, a support block 33 is fixedly installed inside the strip frame 6, a cylinder 40 is passed through the support block 33, a driving plate 34 is passed through the strip frame 6, a vent pipe 35 is fixedly installed on the driving plate 34, and one end of the vent pipe 35 extends to the inside of the cylinder 40, a positioning plate 36 is fixedly installed at one end of the vent pipe 35, and the other end of the short rod 32 is fixedly connected to the positioning plate 36, an air inlet hole 37 is arranged on the vent pipe 35, and the air inlet hole 37 is in contact with the inner wall of the cylinder 40, an exhaust hole 39 is arranged on the vent pipe 35, a delivery hose 38 is arranged inside the strip frame 6, and the delivery hose 38 One end is connected with the exhaust hole 39, and the other end of the delivery hose 38 is connected with the sealing airbag 21. When the air pressure inside the storage tube 1 enters into the strip frame 6 to protect the blood collection body 3, the sealing cover 5 continues to be rotated, and the sealing cover 5 continues to move downward through the threaded teeth 4, which will push the driving plate 34 to move downward, and then push the ventilation tube 35 to move, so that the air inlet 37 moves out of the cylinder 40, and part of the air inside the strip frame 6 will flow into the ventilation tube 35 through the air inlet hole 37. Through the cooperation of the exhaust hole 39 and the delivery hose 38, the air pressure will flow into the sealing airbag 21. After the air pressure enters the sealing airbag 21, the volume of the sealing airbag 21 expands, which will seal the gap between the sealing cover 5 and the blood collection body 3, thereby improving the sealing performance of the improved neonatal blood collection tube and effectively avoiding the loss of the collected blood sample.

[0042] Working principle: First, when using the improved neonatal blood collection tube to collect blood from the neonate, one end of the blood collection channel is connected to the blood collection tube body 3, and the other end of the blood collection channel is connected to a blood collection needle. After the blood collection needle is inserted into the neonatal blood collection site, the collected blood will flow into the blood collection tube body 3 through the cooperation of the blood collection needle and the blood collection tube channel for collection, thereby achieving the purpose of blood collection from the neonate. When the improved neonatal blood collection tube is used for blood collection and storage according to the blood collection needs, it can be manually taken for blood collection or placed on a flat surface for use. When the improved neonatal blood collection tube is placed on a flat surface for blood collection or temporary storage, the storage cylinder 1 is moved to make the positioning component fit the flat surface, and the blood collection tube body 3 is pulled through the connecting plate 7 to drive the piston block 8 to move. When the piston block 8 moves The storage tube 1 will extract the air inside the negative pressure tank 10 through the exhaust pipe 11, and then the inside of the negative pressure tank 10 will become a negative pressure state, so that the annular block 9 can be adsorbed on the plane, and then the position of the improved neonatal blood collection tube can be limited, so that its position is convenient for fixed use, and the convenience of the improved neonatal blood collection tube during use is improved. When using or storing the improved neonatal blood collection tube, it is no longer limited to the storage rack for support and fixation, which improves flexibility. The strip frame 6 is used to protect the blood collection tube body 3 to improve the protection performance. After the neonatal blood is collected, the sealing cover 5 is threadedly connected to the blood collection tube body 3 through the thread teeth 4, but the sealing cover 5 is not completely tightened on the blood collection tube body 3. The blood collection tube body 3 is pressed to reset the blood collection tube body 3. At this time, the annular Block 9 fits tightly on the plane. When the blood collection tube body 3 is reset, the piston block 8 will be driven to reset. The reset of the piston block 8 will compress the air inside the storage tube 1. When the pressure inside the storage tube 1 reaches a predetermined pressure, the air pressure will push the No. 1 sealing block 23 to move. The movement of the No. 1 sealing block 23 will drive the L-shaped groove 24 to move, so that the L-shaped groove 24 moves out of the square groove 22, and then one end of the L-shaped groove 24 is no longer sealed. The compressed air inside the storage tube 1 will flow into the strip frame 6 through the L-shaped groove 24. After the air pressure enters the strip frame 6, the volume of the rubber sheet 18 will expand, which can improve the protection of the blood collection tube body 3 and prevent the blood collection tube body 3 from being hit by external factors, causing the blood collection tube body 3 to be damaged, thereby achieving the purpose of improving the protection. After the air pressure inside the cylinder 1 enters the strip frame 6 to protect the blood collection body 3, the sealing cover 5 continues to be rotated, and the sealing cover 5 continues to move downward through the threaded teeth 4, which will push the driving plate 34 to move downward, and then push the ventilation tube 35 to move, so that the air inlet 37 moves out of the cylinder 40, and part of the air inside the strip frame 6 will flow into the ventilation tube 35 through the air inlet 37, and through the cooperation of the exhaust hole 39 and the delivery hose 38, the air pressure will flow into the sealing airbag 21. After the air pressure enters the sealing airbag 21, the volume of the sealing airbag 21 expands, which will seal the gap between the sealing cover 5 and the blood collection body 3, thereby improving the sealing performance of the improved neonatal blood collection tube and effectively avoiding the loss of the collected blood sample.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An improved neonatal blood collection tube, characterized in that: The invention comprises a storage tube (1), wherein a blood collection tube body (3) is arranged inside the storage tube (1), wherein a guide groove (2) is arranged inside the storage tube (1), wherein a strip frame (6) corresponding to the guide groove (2) is fixedly mounted on the blood collection tube body (3), and the strip frame (6) is engaged with the guide groove (2), wherein a connecting plate (7) is fixedly mounted on the bottom end of the blood collection tube body (3), wherein a piston block (8) is fixedly mounted on the bottom of the connecting plate (7), wherein a positioning component is fixedly mounted on the bottom end of the storage tube (1), wherein a limiting component is arranged inside the storage tube (1), wherein a rubber plate (18) is fixedly mounted on the strip frame (6), wherein a square groove (22) is fixedly mounted on the strip frame (6), and wherein one end of the square groove (22) passes through the piston block (8), and wherein a sealing component is arranged on the blood collection tube body (3).

2. The improved neonatal blood collection tube according to claim 1, characterized in that: The blood sampling tube body (3) is provided with screw threads (4), a sealing cover (5) is provided at the top of the blood sampling tube body (3), and the sealing cover (5) is threadedly connected to the blood sampling tube body (3) via the screw threads (4).

3. The improved neonatal blood collection tube according to claim 1, characterized in that: The positioning assembly comprises an annular block (9), a negative pressure groove (10) and an exhaust pipe (11); the annular block (9) is fixedly mounted on the bottom end of the storage tube (1); the negative pressure groove (10) is arranged at the bottom of the annular block (9); the exhaust pipe (11) is fixedly mounted inside the annular block (9); one end of the exhaust pipe (11) is connected to the negative pressure groove (10); and the other end of the exhaust pipe (11) is connected to the storage tube (1).

4. The improved neonatal blood collection tube according to claim 3, characterized in that: A magnetic plate (12) is fixedly installed inside the storage tube (1), and the magnetic plate (12) is located on one side of the strip frame (6), and the strip frame (6) is made of iron material.

5. The improved neonatal blood collection tube according to claim 1, characterized in that: The limiting assembly comprises a receiving groove (13), a limiting block (14) and a No. 3 spring (15); the receiving groove (13) is installed inside the receiving tube (1); the limiting block (14) is arranged inside the receiving groove (13); the No. 3 spring (15) is fixedly installed inside the receiving groove (13); and the other end of the No. 3 spring (15) is fixedly connected to the limiting block (14); and a limiting groove (19) corresponding to the limiting block (14) is arranged on the connecting plate (7).

6. The improved neonatal blood collection tube according to claim 5, characterized in that: The sealing assembly comprises an annular groove (20) and a sealing airbag (21); the annular groove (20) is arranged on the blood collection tube body (3), and the annular groove (20) is located above the thread teeth (4); and the sealing airbag (21) is fixedly mounted inside the annular groove (20).

7. The improved neonatal blood collection tube according to claim 6, characterized in that: A No. 1 sealing block (23) is arranged inside the square groove (22), an L-shaped groove (24) is arranged inside the No. 1 sealing block (23), and the square groove (22) is fitted with one end of the L-shaped groove (24) to seal one end of the L-shaped groove (24), a driving rod (25) is fixedly mounted on the No. 1 sealing block (23), a No. 1 positioning block (26) is fixedly mounted inside the strip frame (6), a No. 1 sliding groove (27) corresponding to the driving rod (25) is arranged inside the No. 1 positioning block (26), and one end of the driving rod (25) extends into the No. 1 sliding groove (27), a No. 1 spring (28) is fixedly mounted inside the No. 1 sliding groove (27), and the other end of the No. 1 spring (28) is fixedly connected to one end of the driving rod (25).

8. The improved neonatal blood collection tube according to claim 7, characterized in that: A No. 2 positioning block (29) is fixedly installed inside the strip frame (6), a No. 2 sliding groove (30) is arranged inside the No. 2 positioning block (29), a No. 2 spring (31) is fixedly installed inside the No. 2 sliding groove (30), a short rod (32) is passed through the No. 2 sliding groove (30), and one end of the No. 2 spring (31) is fixedly connected to the short rod (32).

9. The improved neonatal blood collection tube according to claim 8, characterized in that: A support block (33) is fixedly installed inside the strip frame (6), and a cylinder (40) is passed through the inside of the support block (33).

10. The improved neonatal blood collection tube according to claim 9, characterized in that: A driving plate (34) is inserted into the strip frame (6), a vent pipe (35) is fixedly mounted on the driving plate (34), and one end of the vent pipe (35) extends into the cylinder (40), a positioning plate (36) is fixedly mounted on one end of the vent pipe (35), an air inlet (37) is arranged on the vent pipe (35), and the air inlet (37) is in contact with the inner wall of the cylinder (40), an air outlet (39) is arranged on the vent pipe (35), a delivery hose (38) is arranged inside the strip frame (6), and one end of the delivery hose (38) is connected to the air outlet (39), and the other end of the delivery hose (38) is connected to the sealing airbag (21).

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