High-sealing-performance double-inlet vacuum blood collection tube
By designing a double-input connection structure and a multiple sealing structure in the vacuum blood collection tube, the problems of low efficiency and insufficient sealing caused by the single imported structure of the existing vacuum blood collection tube are solved, and efficient blood collection and high sealing properties are achieved.
Patent Information
- Application Number
- CN202421108330.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing vacuum blood collection tube cannot be used at the same time due to a single imported structure, which affects the blood collection efficiency. The single thread cover sealing structure leads to insufficient sealing, which makes it easy to cause vacuum leakage.
A high-sealing double-inlet vacuum blood collection tube is designed, and the double-inlet connection and high sealing ability are achieved by skewed and symmetrically welding branch pipes at the top of the main pipe body, and threaded fixed connection and sealing cover body at the bottom of the branch pipe. Combined with a multiple-bar joint extrusion sealing structure, double-inlet connection and high sealing properties are achieved.
A dual-inlet connection structure is realized, which improves blood collection efficiency, and ensures high sealing through multiple sealing structures, avoids vacuum leakage and protects the quality of blood.
Smart Images
Figure CN222765169U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blood collection tubes, in particular to a high-sealing double-inlet vacuum blood collection tube. Background Art
[0002] A vacuum blood collection tube is a disposable, negative pressure vacuum glass tube that can achieve quantitative blood collection. It needs to be used in conjunction with a venous blood collection needle. The principle of a vacuum blood collection tube is to pre-evacuate the blood collection tube with a head cap to different vacuum degrees, and use its negative pressure to automatically and quantitatively collect venous blood samples. After one end of the blood collection needle is inserted into the human vein, the other end is inserted into the rubber plug of the vacuum blood collection tube. Under the action of negative pressure, the human venous blood is drawn into the blood sample container through the blood collection needle inside the vacuum blood collection tube. In one venous puncture, multiple tubes can be collected without leakage. The inner cavity volume connected to the blood collection needle is very small, and the impact on the blood collection volume can be ignored, but the probability of backflow is relatively small. If the inner cavity volume is large, it will consume part of the vacuum degree of the blood collection tube, thereby reducing its collection volume.
[0003] When using current vacuum blood collection tubes, due to the single inlet structure, multiple heads cannot be used simultaneously during blood collection, which affects the efficiency of blood collection. At the same time, the single threaded cap sealing structure makes the sealing performance insufficient, resulting in vacuum leakage, which will affect the blood. Utility Model Content
[0004] The purpose of the utility model is to provide a highly sealed double-inlet vacuum blood collection tube to solve the problem raised in the above background technology that the existing vacuum blood collection tubes cannot be used in multiple places at the same time during blood collection due to the single inlet structure, which affects the efficiency of blood collection, and the single threaded cap sealing structure makes the sealing performance insufficient, resulting in vacuum leakage and affecting the blood.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A high-sealing double-inlet vacuum blood collection tube comprises a main body, a branch pipe is obliquely symmetrically welded at the top of the main body, a sealing cover is threadedly fixedly connected to the bottom end of the branch pipe, a top through hole is symmetrically opened at the top of the main body, a docking ring is fixedly arranged on the outer side of the branch pipe, a top clamping groove is opened on the top surface of the docking ring, a sealing rubber ring is fixedly bonded to the inner side of the top clamping groove, a sealing insert is fixedly arranged on the top surface of the docking ring, a connecting pipe is welded at the top of the branch pipe, and a sealing ring is fixedly arranged on the outer side of the connecting pipe. There is a fixed thread, an outer card groove is provided on the outer side edge of the sealing cover body, a non-slip rubber ring is fixedly bonded to the inner side edge of the outer card groove, a through hole is provided on the top surface of the sealing cover body, a sealing rubber plate is fixedly arranged on the inner side edge of the through hole, a positioning groove is provided on the top surface of the sealing rubber plate, a bottom buckle groove is provided on the bottom surface of the sealing cover body, an installation screw hole is provided on the inner top end of the bottom buckle groove, a sealing ring groove is provided on the inner top surface of the bottom buckle groove, an inner rubber ring is fixedly arranged on the inner side edge of the sealing ring groove, and a matching ring is fixedly clamped on the inner top surface of the bottom buckle groove.
[0007] As a preferred embodiment of the present utility model: the number of the branch pipes is two, and the bottom opening ends of the two branch pipes are fixedly arranged at the edge positions of the top opening ends of the top through-holes, the interiors of the branch pipes and the interiors of the top through-holes are connected to each other, and the sealing cover body is arranged at the top opening ends of the branch pipes.
[0008] As a preferred embodiment of the utility model: the top through hole is symmetrically opened at the top oblique side of the main pipe body, the docking ring body is fixedly arranged at the outer top opening end of the branch pipe, and the docking ring body is correspondingly horizontally clamped at the inner side of the bottom buckle groove, and the top clamping groove is annularly opened at the top surface of the docking ring body near the edge.
[0009] As a preferred embodiment of the utility model: the sealing rubber ring is made of soft rubber material, the top end of the sealing plug ring is plugged into the inner side of the sealing ring groove, and the plug-in top end is butt-jointed with the bottom surface of the inner rubber ring, the top end of the connecting pipe is plugged into the inner side of the mounting screw hole, and the connecting pipe is fixedly connected to the inner side of the mounting screw hole through a fixing thread.
[0010] As a preferred embodiment of the present invention: the through hole is opened in the center of the top surface of the sealing cover body in a through-type manner, and the through-extending end is connected with the inside of the mounting screw hole, and the mounting screw hole is opened in the center of the inner top end of the bottom buckle groove and is connected.
[0011] As a preferred embodiment of the utility model: the sealing ring groove is annularly provided at the edge of the bottom opening end close to the mounting screw hole, and the bottom surface of the matching ring is arranged butt-jointed with the top surface of the sealing rubber ring.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model arranges two sealing cover bodies at the top open end positions of the branch pipes by buckling them, so that the top end of the connecting pipe is inserted and arranged inside the mounting screw hole, and the internal threaded fixing and installation operation is performed by fixing the threaded connection and the connection is performed by extruding the bottom surface of the matching ring at the top surface position of the sealing rubber ring to seal it, and the top end of the sealing insert pipe is inserted and arranged inside the sealing ring groove, so that the insert top end is inserted and arranged on the bottom surface of the inner rubber ring to seal it under extrusion, and after the sealing is completed, the vacuum body passes through the sealing rubber plate so that the inside of the main pipe body is extracted in a vacuum state, and the main pipe body after the vacuum can meet the needs of subsequent blood collection. The double-inlet connection structure is adopted, so that the efficiency of blood collection can be greatly improved, and the multiple clamping and extruding sealing structures make the sealing effect better. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a highly sealed double-inlet vacuum blood collection tube;
[0016] Figure 2 It is a structural schematic diagram of the front view cross-section connection details of the main body of a high-sealing double-inlet vacuum blood collection tube;
[0017] Figure 3 It is a structural schematic diagram of the front view cross-sectional connection details of a sealing cover body of a high-sealing double-inlet vacuum blood collection tube;
[0018] Figure 4 The present invention is a structural schematic diagram showing the connection details of a sealing cover of a high-sealing double-inlet vacuum blood collection tube when viewed from above.
[0019] In the figure: 1. main pipe body; 2. branch pipe; 3. sealing cover body; 4. top through hole; 5. docking ring body; 6. top clamping groove; 7. sealing rubber ring; 8. sealing plug ring; 9. connecting pipe; 10. fixing thread; 11. outer clamping groove; 12. anti-skid rubber ring; 13. through hole; 14. sealing rubber plate; 15. positioning groove; 16. bottom buckle groove; 17. mounting screw hole; 18. sealing ring groove; 19. inner rubber ring; 20. matching ring. DETAILED DESCRIPTION
[0020] See also Figure 1In an embodiment of the utility model, a high-sealing double-inlet vacuum blood collection tube comprises a main body 1, a branch pipe 2 is obliquely symmetrically welded to the top of the main body 1, a sealing cover 3 is threadedly fixedly connected to the bottom end of the branch pipe 2, there are two branch pipes 2, and the bottom opening ends of the two branch pipes 2 are fixedly arranged at the edge of the top opening end of the top through hole 4, the inside of the branch pipe 2 and the inside of the top through hole 4 are connected to each other, and the sealing cover 3 is arranged at the top opening end of the branch pipe 2;
[0021] See also Figure 2-4 In the embodiment of the utility model, a high-sealing double-inlet vacuum blood collection tube is provided, wherein the top of the main body 1 is symmetrically provided with a top through hole 4, the outer side of the branch pipe 2 is fixedly provided with a docking ring body 5, and the top surface of the docking ring body 5 is provided with a top clamping groove 6, the top through hole 4 is symmetrically provided at the top oblique side of the main body 1, the docking ring body 5 is fixedly provided at the outer top opening end of the branch pipe 2, and the docking ring body 5 is correspondingly horizontally clamped at the inner side of the bottom buckle groove 16, and the top clamping groove 6 is annularly provided at the docking ring body 5 The top surface is close to the edge position, the inner side edge of the top clamping groove 6 is fixedly bonded with a sealing rubber ring 7, the top surface of the docking ring body 5 is fixedly provided with a sealing plug ring 8, the top of the branch pipe 2 is welded with a connecting pipe 9, and the outer side edge of the connecting pipe 9 is provided with a fixed thread 10, the sealing rubber ring 7 is made of soft rubber material, the top end of the sealing plug ring 8 is plugged and set on the inner side edge of the sealing ring groove 18, and the plug-in top end is docked and set at the bottom surface position of the inner rubber ring 19, the top end of the connecting pipe 9 is plugged and set on the inner side edge of the mounting screw hole 17, and the connecting pipe 9 The inner side of the mounting screw hole 17 is fixedly connected by a fixing thread 10, an outer side of the sealing cover body 3 is provided with an outer groove 11, an inner side of the outer groove 11 is fixedly bonded with an anti-slip rubber ring 12, a top surface of the sealing cover body 3 is provided with a through hole 13, an inner side of the through hole 13 is fixedly provided with a sealing rubber plate 14, a top surface of the sealing rubber plate 14 is provided with a positioning groove 15, a bottom buckle groove 16 is provided on the bottom surface of the sealing cover body 3, an inner top end of the bottom buckle groove 16 is provided with a mounting screw hole 17, and the through hole 13 is provided in a through-type manner in the sealing cover body 3. The center position of the top surface of the cover body 3 is maintained through the extending end and connected with the inside of the mounting screw hole 17. The mounting screw hole 17 is opened at the center position of the inner top end of the bottom buckle groove 16 and maintained in communication. A sealing ring groove 18 is opened on the inner top surface of the bottom buckle groove 16. An inner rubber ring 19 is fixedly provided on the inner side edge of the sealing ring groove 18. A matching ring 20 is fixedly clamped on the inner top surface of the bottom buckle groove 16. The sealing ring groove 18 is annularly opened at the edge of the bottom opening end near the mounting screw hole 17. The bottom surface of the matching ring 20 is arranged to abut against the top surface of the sealing rubber ring 7.
[0022] The working principle of the utility model is:
[0023] The two sealing cover bodies 3 are buckled and set at the top open end position of the branch pipe 2, and the top end of the connecting pipe 9 is inserted and set inside the mounting screw hole 17. The internal thread of the mounting screw hole 17 is fixed and connected by the fixing thread 10. Then the bottom surface of the matching ring 20 is squeezed and set on the top surface position of the sealing rubber ring 7 to squeeze and seal, and the top end of the sealing insert pipe 8 is inserted and set inside the sealing ring groove 18. Under extrusion, the top end of the insertion is inserted and set on the bottom surface of the inner rubber ring 19 to seal. After the sealing is completed, the vacuum body passes through the sealing rubber plate 14 to make the interior of the main body 1 vacuum. The main body 1 after vacuum can meet the subsequent blood collection needs.
[0024] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A highly sealed double-inlet vacuum blood collection tube, comprising a main body (1), characterized in that: The top of the main pipe (1) is symmetrically welded with a branch pipe (2), the bottom of the branch pipe (2) is threadedly fixedly connected with a sealing cover (3), the top of the main pipe (1) is symmetrically provided with a top through hole (4), the outer side of the branch pipe (2) is fixedly provided with a docking ring (5), the top surface of the docking ring (5) is provided with a top clamping groove (6), the inner side of the top clamping groove (6) is fixedly bonded with a sealing rubber ring (7), the top surface of the docking ring (5) is fixedly provided with a sealing insert ring (8), the top of the branch pipe (2) is welded with a connecting pipe (9), the outer side of the connecting pipe (9) is provided with a fixing thread (10), the outer side of the sealing cover (3) is provided with a An outer card slot (11), the inner side edge of the outer card slot (11) is fixedly bonded with an anti-slip rubber ring (12), the top surface of the sealing cover body (3) is provided with a through hole (13), the inner side edge of the through hole (13) is fixedly provided with a sealing rubber plate (14), the top surface of the sealing rubber plate (14) is provided with a positioning groove (15), the bottom surface of the sealing cover body (3) is provided with a bottom buckle slot (16), the inner top end of the bottom buckle slot (16) is provided with a mounting screw hole (17), the inner top surface of the bottom buckle slot (16) is provided with a sealing ring slot (18), the inner side edge of the sealing ring slot (18) is fixedly provided with an inner rubber ring (19), and the inner top surface of the bottom buckle slot (16) is fixedly clamped with a matching ring (20).
2. A highly sealed double-inlet vacuum blood collection tube according to claim 1, characterized in that: The number of the branch pipes (2) is two, and the bottom opening ends of the two branch pipes (2) are fixedly arranged at the edge of the top opening end of the top through hole (4), the interior of the branch pipe (2) and the interior of the top through hole (4) are connected to each other, and the sealing cover (3) is arranged at the top opening end of the branch pipe (2).
3. The high-sealing double-inlet vacuum blood collection tube according to claim 1, characterized in that: The top through hole (4) is symmetrically through-opened at the top oblique side of the main pipe (1); the docking ring body (5) is fixedly arranged at the top open end of the outer side of the branch pipe (2); and the docking ring body (5) is correspondingly horizontally clamped at the inner side of the bottom buckle groove (16); and the top clamping groove (6) is annularly opened at the top surface of the docking ring body (5) near the edge.
4. The high-sealing double-inlet vacuum blood collection tube according to claim 1, characterized in that: The sealing rubber ring (7) is made of soft rubber material, the top end of the sealing insert ring (8) is inserted and arranged on the inner side of the sealing ring groove (18), and the inserted top end is butt-jointed and arranged on the bottom surface of the inner rubber ring (19), the top end of the connecting pipe (9) is inserted and arranged on the inner side of the mounting screw hole (17), and the connecting pipe (9) is threadedly fixedly connected to the inner side of the mounting screw hole (17) through a fixing thread (10).
5. The high-sealing double-inlet vacuum blood collection tube according to claim 1, characterized in that: The through hole (13) is opened in a through-type manner at the center position of the top surface of the sealing cover body (3), and the through-extending end is kept in communication with the inside of the mounting screw hole (17), and the mounting screw hole (17) is opened at the center position of the inner top end of the bottom buckle groove (16) and is kept in communication.
6. The high-sealing double-inlet vacuum blood collection tube according to claim 1, characterized in that: The sealing ring groove (18) is annularly provided at the edge of the bottom opening end close to the mounting screw hole (17), and the bottom surface of the matching ring (20) is arranged to butt against the top surface of the sealing rubber ring (7).