High-pressure injector connecting pipe capable of regulating and controlling flow

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a high-pressure injector connecting pipe capable of regulating and controlling flow, which comprises a shell, and a first connecting pipe and a second connecting pipe are respectively and fixedly sleeved inside the bottom end and the top end of the shell. By arranging a sealing plug, a through hole, a first spring and a tooth plate, an operator pushes a mounting frame rightwards, so that a movable rod drives a connecting plate to move rightwards, then a connecting rod drives the sealing plug to move rightwards, the through hole is staggered with a first connecting pipe and a second connecting pipe, and then flow is regulated and controlled; when the sealing plug moves rightwards, a movable plate is driven to move rightwards through a cross rod, so that a first spring is compressed, at the moment, due to the fact that the rear end of a clamping plate is clamped with a tooth plate, the situation that the sealing plug is driven to reset under the elastic force recovery effect of the first spring can be avoided, and then the sealing plug can stably stay at the current position; therefore, the flow is controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, in particular to a high-pressure syringe connecting tube capable of regulating flow rate. Background Art

[0002] The high-pressure injector is an auxiliary device in the medical imaging system. With the development of technologies such as X-rays, rapid film changers, image intensifiers, and artificial contrast agents, it has gradually been used in clinical practice. The basic function of the high-pressure injector is to quickly and accurately inject a sufficient amount of high-concentration X-ray contrast agent into the examination site through percutaneous puncture into the blood vessels or through the original channels of the human body within a certain period of time.

[0003] When a high-pressure syringe is in use, a connecting tube is required. The connecting tube is mainly used to connect the high-pressure syringe and the intravenous access in the patient's body. In actual use, it is usually necessary to control the injection flow to ensure the patient's safety and adapt to different usage scenarios. When used, the existing connecting tube can perform the basic function of connection, but the flow is usually controlled by squeezing the connecting tube. This control method is often affected by the material of the connecting tube. Frequent squeezing will cause fatigue of the hose material, and after the squeezing is released, the connecting tube cannot immediately fully restore its deformation, thereby affecting the control of the flow, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems. The utility model provides a high-pressure injector connecting tube with adjustable flow rate, which has the advantage of adjustable flow rate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure syringe connecting tube with adjustable flow rate, comprising a shell, wherein the first connecting tube and the second connecting tube are fixedly sleeved inside the bottom end and the top end of the shell respectively, a sealing plug is movably sleeved inside the shell, a through hole is opened inside the sealing plug, a fixing plate is fixedly installed on the left side of the inner cavity of the shell, a cross bar is fixedly connected to the left end of the sealing plug, the outer surface of the cross bar is movably sleeved with the inner wall of the fixing plate, the left end of the cross bar is fixedly connected to the movable plate, the right side of the movable plate is fixedly connected to the first spring, and the right end of the first spring is connected to the fixing plate The left side of the shell is fixedly connected, the right end of the sealing plug is fixedly connected to a connecting rod, the right end of the connecting rod extends to the right side of the shell and is fixedly connected to a connecting plate, the left side of the connecting plate is fixedly connected to a movable rod, there are two movable rods, the front sides of the two movable rods are fixedly installed with mounting frames, a clamping plate is movably sleeved between the mounting frames, a fixing block is fixedly installed between the mounting frames, the left end of the fixing block is fixedly connected to a second spring, the left end of the second spring is fixedly connected to the outer surface of the clamping plate, a toothed plate is fixedly installed on the front side of the shell, and the outer surface of the toothed plate is movably connected to the rear end of the clamping plate.

[0006] As a preferred embodiment of the present invention, sealing rings are movably sleeved inside the left and right ends of the sealing plug, and the outer surface of the sealing ring is movably connected to the inner surface of the shell.

[0007] As a preferred embodiment of the utility model, fixing tubes are fixedly installed on the top and the bottom of the shell, there are two fixing tubes, and the inner surfaces of the two fixing tubes are fixedly sleeved with the outer surfaces of the first connecting tube and the second connecting tube respectively.

[0008] As a preferred embodiment of the utility model, a storage rack is fixedly sleeved on the top of the outer surface of the second connecting tube, a fixed shaft is fixedly installed on the front side of the storage rack, and a rotating rod is movably sleeved on the outer surface of the fixed shaft.

[0009] As a preferred embodiment of the utility model, a third connecting tube is fixedly connected to the right side of the second connecting tube, and the outer surface of the third connecting tube is movably connected to the inner surface of the storage rack.

[0010] As a preferred embodiment of the utility model, a connecting block is movably sleeved inside the right end of the storage rack, a return spring is fixedly connected to the back side of the connecting block, and the other end of the return spring is fixedly connected to the inner surface of the storage rack.

[0011] As a preferred embodiment of the utility model, the front end of the connecting block is fixedly connected to a hemispherical block, the outer surface of the hemispherical block is movably connected to the inner surface of the storage rack, and the outer surface of the hemispherical block is movably connected to the inner surface of the rotating rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model provides a sealing plug, a through hole, a first spring and a toothed plate. The operator pushes the mounting frame to the right, so that the movable rod drives the connecting plate to move to the right, and then the connecting rod drives the sealing plug to move to the right, so that the through hole and the first connecting pipe and the second connecting pipe are staggered, thereby regulating the flow rate. When the sealing plug moves to the right, the movable plate will be driven to move to the right through the cross bar, so that the first spring is compressed. At this time, the rear end of the clamping plate is engaged with the toothed plate, so that the sealing plug can be prevented from being reset under the action of the elastic force recovery of the first spring, and then the sealing plug can be stably stayed in the current position, so as to control the flow rate, thereby avoiding squeezing the first connecting pipe and the second connecting pipe to control the flow rate.

[0014] 2. The utility model provides a storage rack, a rotating rod and a hemispherical block. After the operator has finished using the third connecting tube, the operator can rotate the rotating rod to a vertical state, and then place the third connecting tube inside the storage rack. Then, the operator rotates the rotating rod to reset the rotating rod. At this time, the hemispherical block will be located inside the rotating rod, thereby fixing the rotating rod and preventing the third connecting tube from escaping from the storage rack. This allows the third connecting tube to be stored and prevented from shaking due to lack of a support point when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the front side of the utility model;

[0017] Figure 3 It is a schematic cross-sectional structure diagram of the housing of the utility model;

[0018] Figure 4 It is a schematic cross-sectional view of the storage rack of the utility model;

[0019] Figure 5 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 6 for Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0021] In the figure: 1. shell; 2. first connecting tube; 3. second connecting tube; 4. sealing plug; 5. through hole; 6. fixed plate; 7. cross bar; 8. movable plate; 9. first spring; 10. connecting rod; 11. connecting plate; 12. movable rod; 13. mounting frame; 14. clamping plate; 15. fixing block; 16. second spring; 17. tooth plate; 18. sealing ring; 19. fixing tube; 20. storage rack; 21. fixing shaft; 22. rotating rod; 23. reset spring; 24. connecting block; 25. hemispherical block; 26. third connecting tube. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 6 As shown, the utility model provides a high-pressure syringe connecting tube with adjustable flow rate, comprising a shell 1, wherein the first connecting tube 2 and the second connecting tube 3 are fixedly sleeved inside the bottom end and the top end of the shell 1 respectively, a sealing plug 4 is movably sleeved inside the shell 1, a through hole 5 is opened inside the sealing plug 4, a fixing plate 6 is fixedly installed on the left side of the inner cavity of the shell 1, a cross bar 7 is fixedly connected to the left end of the sealing plug 4, the outer surface of the cross bar 7 is movably sleeved with the inner wall of the fixing plate 6, the left end of the cross bar 7 is fixedly connected to the movable plate 8, the right side of the movable plate 8 is fixedly connected to the first spring 9, the right end of the first spring 9 is fixedly connected to the left side of the fixing plate 6, and the right end of the sealing plug 4 is fixedly connected to the left side of the fixing plate 6. A connecting rod 10 is fixedly connected to the end, the right end of the connecting rod 10 extends to the right side of the shell 1 and is fixedly connected to a connecting plate 11, a movable rod 12 is fixedly connected to the left side of the connecting plate 11, there are two movable rods 12, and mounting frames 13 are fixedly installed on the front sides of the two movable rods 12, a clamping plate 14 is movably sleeved between the mounting frames 13, a fixing block 15 is fixedly installed between the mounting frames 13, a second spring 16 is fixedly connected to the left end of the fixing block 15, and the left end of the second spring 16 is fixedly connected to the outer surface of the clamping plate 14, a tooth plate 17 is fixedly installed on the front side of the shell 1, and the outer surface of the tooth plate 17 is movably connected to the rear end of the clamping plate 14.

[0024] When the through hole 5 coincides with the first connecting tube 2 and the second connecting tube 3, the liquid in the second connecting tube 3 will smoothly enter the first connecting tube 2. The operator can push the mounting bracket 13 to the right so that the mounting bracket 13 drives the movable rod 12 and the connecting plate 11 to move to the right, thereby enabling the connecting rod 10 to pull the sealing plug 4 to move to the right, thereby gradually staggering the through hole 5 and the first connecting tube 2 and the second connecting tube 3, so that the flow rate of the liquid can be adjusted. When the sealing plug 4 moves to the right, the first spring 9 will be compressed. Since the clamping plate 14 is engaged with the outer surface of the tooth plate 17, the first spring 9 cannot drive the sealing plug 4 to reset under the action of elastic recovery.

[0025] The left and right ends of the sealing plug 4 are both movably sleeved with sealing rings 18 , and the outer surface of the sealing ring 18 is movably connected to the inner surface of the housing 1 .

[0026] As a technical optimization solution of the present invention, by providing a sealing ring 18, the sealing ring 18 can play a sealing role, thereby preventing liquid leakage.

[0027] Among them, fixed tubes 19 are fixedly installed on the top and bottom of the shell 1. There are two fixed tubes 19. The inner surfaces of the two fixed tubes 19 are fixedly sleeved with the outer surfaces of the first connecting tube 2 and the second connecting tube 3 respectively.

[0028] As a technical optimization solution of the present invention, by providing the fixing pipe 19 , the first connecting pipe 2 and the second connecting pipe 3 can be more tightly connected to the housing 1 .

[0029] The top of the outer surface of the second connecting tube 3 is fixedly sleeved with a storage rack 20 , the front of the storage rack 20 is fixedly installed with a fixed shaft 21 , and the outer surface of the fixed shaft 21 is movably sleeved with a rotating rod 22 .

[0030] As a technical optimization solution of the present invention, the operator can rotate the rotating rod 22 with the fixed shaft 21 as the axis, thereby rotating the rotating rod 22 from a horizontal state to a vertical state.

[0031] The right side of the second connecting tube 3 is fixedly connected to a third connecting tube 26 , and the outer surface of the third connecting tube 26 is movably connected to the inner surface of the storage rack 20 .

[0032] As a technical optimization solution of the utility model, when the third connecting tube 26 is located inside the storage rack 20, the third connecting tube 26 will be stored, thereby preventing the third connecting tube 26 from shaking due to the lack of a supporting point.

[0033] Among them, a connecting block 24 is movably sleeved inside the right end of the storage rack 20 , a return spring 23 is fixedly connected to the back of the connecting block 24 , and the other end of the return spring 23 is fixedly connected to the inner surface of the storage rack 20 .

[0034] As a technical optimization solution of the present invention, by providing a reset spring 23, the reset spring 23 can push the connection block 24 to reset under the action of elastic force recovery after being compressed.

[0035] Among them, the front end of the connecting block 24 is fixedly connected with a hemispherical block 25, the outer surface of the hemispherical block 25 is movably connected to the inner surface of the storage rack 20, and the outer surface of the hemispherical block 25 is movably connected to the inner surface of the rotating rod 22.

[0036] As a technical optimization solution of the utility model, when the hemispherical block 25 is located inside the rotating rod 22, it will fix the rotating rod 22, so that the rotating rod 22 can limit the third connecting tube 26 and prevent the third connecting tube 26 from detaching from the inside of the storage rack 20.

[0037] The working principle and use process of this utility model:

[0038] When the operator needs to regulate the flow rate, he can push the mounting bracket 13 to the right, so that the mounting bracket 13 drives the movable rod 12 and the connecting plate 11 to move to the right, so that the connecting rod 10 drives the sealing plug 4 to move to the right, and then the through hole 5 is staggered with the first connecting pipe 2 and the second connecting pipe 3, so as to regulate the flow rate. When the through hole 5 is completely staggered with the first connecting pipe 2 and the second connecting pipe 3, the first connecting pipe 2 and the second connecting pipe 3 will be disconnected. When the sealing plug 4 moves to the right, it will drive the movable plate 8 to move to the right through the cross bar 7, so that the first spring 9 is compressed, so that the first spring 9 pushes the movable plate 8 to the left under the action of elastic recovery, thereby applying a leftward thrust to the sealing plug 4, and because the rear end of the clamping plate 14 is engaged with the tooth plate 17, This makes the mounting frame 13 unable to move to the left, and further makes the sealing plug 4 unable to move to the left, so that the sealing plug 4 can stay stably in the current position, thereby controlling the flow rate. When the flow rate needs to be increased, the front end of the card plate 14 can be pushed to make the rear end of the card plate 14 tilt up, so that the card plate 14 is out of contact with the tooth plate 17. At this time, the first spring 9 will drive the sealing plug 4 to move to the left under the action of elastic recovery, so that the overlapping area of ​​the through hole 5 and the first connecting pipe 2 and the second connecting pipe 3 is increased, thereby increasing the flow rate. After adjusting the sealing plug 4 to a suitable position, the operator releases the card plate 14. At this time, the second spring 16 drives the card plate 14 to reset under the action of elastic recovery, so that the card plate 14 is engaged with the tooth plate 17, so that the sealing plug 4 can stay stably.

[0039] When the operator has finished using the third connecting tube 26, he first rotates the rotating rod 22 to make the rotating rod 22 rotate to a vertical state, then places the third connecting tube 26 inside the storage rack 20, and then rotates the rotating rod 22 to reset the rotating rod 22. At this time, the back side of the rotating rod 22 will squeeze and push the hemispherical block 25 to move backward, thereby compressing the reset spring 23. When the rotating rod 22 is rotated to a horizontal state, the reset spring 23 will push the hemispherical block 25 forward under the action of elastic recovery, so that the hemispherical block 25 is located inside the rotating rod 22, thereby fixing the rotating rod 22, and further preventing the third connecting tube 26 from detaching from the inside of the storage rack 20, thereby storing the third connecting tube 26 and preventing the third connecting tube 26 from shaking without a support point when not in use.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure injector connecting tube with adjustable flow rate, comprising a housing (1), characterized in that: The bottom and top ends of the shell (1) are respectively fixedly sleeved with a first connecting tube (2) and a second connecting tube (3); the shell (1) is movably sleeved with a sealing plug (4); a through hole (5) is provided inside the sealing plug (4); a fixing plate (6) is fixedly installed on the left side of the inner cavity of the shell (1); the left end of the sealing plug (4) is fixedly connected to a cross bar (7); the outer surface of the cross bar (7) is movably sleeved with the inner wall of the fixing plate (6); the left end of the cross bar (7) is fixedly connected to a movable plate (8); the right side of the movable plate (8) is fixedly connected to a first spring (9); the right end of the first spring (9) is fixedly connected to the left side of the fixing plate (6); the right end of the sealing plug (4) is fixedly connected to a connecting rod (10); the connecting rod (11) is fixedly connected to the left side of the fixing plate (6); The right end of the rod (10) extends to the right side of the shell (1) and is fixedly connected to a connecting plate (11); the left side of the connecting plate (11) is fixedly connected to a movable rod (12); there are two movable rods (12); mounting frames (13) are fixedly installed on the front sides of the two movable rods (12); a clamping plate (14) is movably sleeved between the mounting frames (13); a fixing block (15) is fixedly installed between the mounting frames (13); the left end of the fixing block (15) is fixedly connected to a second spring (16); the left end of the second spring (16) is fixedly connected to the outer surface of the clamping plate (14); a tooth plate (17) is fixedly installed on the front side of the shell (1); the outer surface of the tooth plate (17) is movably connected to the rear end of the clamping plate (14).

2. The high-pressure injector connecting tube with adjustable flow rate according to claim 1, characterized in that: A sealing ring (18) is movably sleeved inside the left and right ends of the sealing plug (4), and the outer surface of the sealing ring (18) is movably connected to the inner surface of the housing (1).

3. The high-pressure injector connecting tube with adjustable flow rate according to claim 1, characterized in that: The top and bottom of the shell (1) are both fixedly mounted with fixing tubes (19), there are two fixing tubes (19), and the inner surfaces of the two fixing tubes (19) are respectively fixedly sleeved with the outer surfaces of the first connecting tube (2) and the second connecting tube (3).

4. The high-pressure injector connecting tube with adjustable flow rate according to claim 1, characterized in that: A storage rack (20) is fixedly sleeved on the top of the outer surface of the second connecting tube (3), a fixed shaft (21) is fixedly mounted on the front of the storage rack (20), and a rotating rod (22) is movably sleeved on the outer surface of the fixed shaft (21).

5. The high-pressure injector connecting tube with adjustable flow rate according to claim 1, characterized in that: A third connecting tube (26) is fixedly connected to the right side of the second connecting tube (3), and an outer surface of the third connecting tube (26) is movably connected to an inner surface of the storage rack (20).

6. The high-pressure injector connecting tube with adjustable flow rate according to claim 4, characterized in that: A connecting block (24) is movably sleeved inside the right end of the storage rack (20), a return spring (23) is fixedly connected to the back of the connecting block (24), and the other end of the return spring (23) is fixedly connected to the inner surface of the storage rack (20).

7. The high-pressure injector connecting tube with adjustable flow rate according to claim 6, characterized in that: The front end of the connecting block (24) is fixedly connected to a hemispherical block (25), the outer surface of the hemispherical block (25) is movably connected to the inner surface of the storage rack (20), and the outer surface of the hemispherical block (25) is movably connected to the inner surface of the rotating rod (22).

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