Contrast agent injector
By setting up a filling tube, output tube and limiting structure in the contrast agent boring device, the problem of speed and temperature control of contrast agent boring device in the prior art is solved, the patient's discomfort and operation risks are reduced, and the boring device is improved security and controllability.
Patent Information
- Application Number
- CN202420272821.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-04
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-02-04
AI Technical Summary
The existing contrast agent boring device cannot sense the pressure changes in the patient's body in real time, which makes it difficult to control the boring speed and quantity, and poses safety risks. The difference between the contrast agent temperature and the human body temperature leads to discomfort, and operation errors may lead to the reverse of the boring rod. There are safety risks in exercise.
A contrast agent boring device was designed. By setting up a filling tube, output tube, piston block, push rod and limiting slot, the contrast agent is heated with warm water and the boring speed is controlled to prevent the boring rod from moving in reverse. Ensure safety and comfort.
The contrast agent temperature is matched with the human body temperature, reducing patient discomfort, and preventing reverse movement of the bolt through the limiting structure, improving operational safety and control accuracy.
Smart Images
Figure CN222172799U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a contrast agent injector. Background Art
[0002] Contrast agents are chemicals injected into human tissues or organs to enhance imaging observation. The density of these chemicals is higher or lower than that of surrounding tissues, forming a contrast with the surrounding tissues. The contrast image can be displayed by certain instruments. At present, the commonly used injection method is for doctors to inject contrast agents into the patient's body under the irradiation of an X-ray machine. Long-term exposure to radiation will obviously damage the doctor's health. Therefore, relevant scholars have designed contrast agent injectors. However, when using this type of contrast agent injector, it is impossible to sense the pressure changes in the patient's body in real time. Therefore, it is impossible to control the injection speed and the amount of contrast agent injected. There are safety hazards when using it in special circumstances. For example: if the patient has bile duct obstruction, it cannot be identified before contrast imaging. If mechanical thrust is still used to inject contrast agents into the patient's body, the total amount of fluid in the bile duct will increase and cannot be discharged normally, and the pressure in the bile duct will rise sharply. In severe cases, it will cause damage to the surrounding tube walls or tissues and increase unnecessary pain for the patient.
[0003] After searching, Chinese patent publication (announcement) No. CN206342790U discloses a contrast agent pusher. This patent can control the speed and time of the push according to the real-time displayed pressure value through the setting of a pressure sensor to avoid causing harm to the patient. However, when the existing pusher is in use, when the contrast agent is injected into the human body in the pusher, the temperature of the contrast agent itself is greatly different from the patient's body temperature, which will cause discomfort to the patient during the push process. In addition, when the pusher is injecting contrast agent, if the operator makes an error in operation, there may be a disadvantage of the push rod moving in the opposite direction, which poses a certain safety risk. Therefore, it is necessary to design a contrast agent pusher. Utility Model Content
[0004] The main purpose of the utility model is to provide a contrast agent pusher, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A contrast agent injector comprises a main body, an inner wall of which is provided with a storage cavity, a filling tube fixedly connected to one side of the outer surface of the main body, one end of the filling tube passes through the outer surface of the main body and is communicated with the storage cavity, the other end of the filling tube is threadedly connected to a first sealing cap, an output tube fixedly connected to one side of the outer surface of the main body, one end of the output tube passes through the outer surface of the main body and is communicated with the storage cavity; one end of the output tube is threadedly connected to a second sealing cap, and an injection head is fixedly connected to the lower surface of the main body.
[0007] In order to facilitate observation, as a contrast agent injector of the utility model, an observation window is arranged on one side of the outer surface of the main body.
[0008] In order to enable the piston block to move, as a contrast agent injector of the utility model, the inner wall of the main body is slidably connected with the piston block, the upper surface of the piston block is fixedly connected with a push rod, the upper surface of the push rod is provided with a pressure plate, and the upper surface of the pressure plate is fixedly connected with an anti-slip rubber strip.
[0009] In order to limit the push rod, as a contrast agent injector of the utility model, a limiting groove is provided on the upper surface of the main body, and the limiting groove is slidably connected to the push rod.
[0010] In order to allow the sliding column to slide, as a contrast agent injector of the utility model, the upper surface of the main body is fixedly connected with a fixed block, one side of the fixed block is slidably connected with a sliding column, one end of the sliding column passes through one side of the fixed block and extends to the other side of the fixed block, and one end of the sliding column is fixedly connected with a clamping block.
[0011] In order to enable driving, as a contrast agent pusher of the utility model, one end of the sliding column is fixedly connected to a pull ring, one side of the outer surface of the pull ring is fixedly connected to a spring, and one end of the spring is fixedly connected to a fixed block.
[0012] In order to allow the block to be inserted into the oblique groove, as a contrast agent injector of the utility model, an oblique groove is provided on one side of the outer surface of the push rod, and the oblique groove is movably connected to the block.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. In the utility model, through the arrangement of the main body, the storage cavity, the filling pipe, the output pipe and the second cover, when in use, when the contrast agent is sucked into the interior of the main body, the first cover is opened, and warm water is filled into the storage cavity through the filling pipe. The heat of the warm water heats the contrast agent inside the main body during the heat transfer process, so that the temperature of the contrast agent is more suitable when it is transported by the main body to the human body, reducing the irritation to the human body. When the warm water needs to be discharged, the second cover is opened, and the warm water in the storage cavity is discharged through the output pipe.
[0015] 2. In the utility model, through the arrangement of the fixed block, the sliding column, the card block, the pull ring, the spring and the inclined groove, when in use, the piston block can be driven to move by the push rod when the pressure plate is pressed, and the contrast agent can be discharged through the injection head. When the push rod moves downward, the inclined groove pushes the card block so that the card block can drive the sliding column to move toward the pull ring direction. When the other inclined groove reaches the card block position, the card block can be inserted into the inclined groove under the action of the spring. Under this condition, the push rod can only move downward but not upward, thereby limiting the push rod to prevent the push rod from moving in the opposite direction due to accidental touch during operation. When the push rod needs to move in the opposite direction, the pull ring is pulled to make the card block disengage from the inclined groove through the sliding column. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front view structural schematic diagram of the utility model;
[0017] Figure 2 This is a schematic diagram of the storage cavity structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the limit groove structure of the utility model;
[0019] Figure 4 This is a schematic diagram of the pressing plate structure of the utility model;
[0020] Figure 5 It is a schematic diagram of the pull ring structure of the utility model;
[0021] Figure 6 This is a schematic diagram of the card block structure of the utility model.
[0022] In the figure: 1. main body; 2. storage chamber; 3. filling pipe; 4. first cover; 5. output pipe; 6. second cover; 7. injection head; 8. observation window; 9. piston block; 10. push rod; 11. pressure plate; 12. anti-skid rubber strip; 13. limit groove; 14. fixing block; 15. sliding column; 16. clamping block; 17. pull ring; 18. spring; 19. inclined groove. DETAILED DESCRIPTION
[0023] 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.
[0024] like Figure 1-6As shown, a contrast agent pusher comprises a main body 1, an inner wall of the main body 1 is provided with a storage cavity 2, a filling tube 3 is fixedly connected to one side of the outer surface of the main body 1, one end of the filling tube 3 passes through the outer surface of the main body 1 and is in communication with the storage cavity 2, a first sealing cap 4 is threadedly connected to the other end of the filling tube 3, an output tube 5 is fixedly connected to one side of the outer surface of the main body 1, one end of the output tube 5 passes through the outer surface of the main body 1 and is in communication with the storage cavity 2;
[0025] In this embodiment, one end of the output tube 5 is threadedly connected to a second sealing cover 6 , and the lower surface of the main body 1 is fixedly connected to an injection head 7 .
[0026] During specific use, when the contrast agent is sucked into the main body 1, the first cover 4 is opened, and warm water is added into the storage chamber 2 through the filling pipe 3. The heat of the warm water heats the contrast agent inside the main body 1 during the heat transfer process, so that the temperature of the contrast agent is more suitable when it is transported to the human body by the main body 1, thereby reducing the irritation to the human body. When the warm water needs to be discharged, the second cover 6 is opened, and the warm water in the storage chamber 2 is discharged through the output pipe 5.
[0027] In this embodiment, an observation window 8 is provided on one side of the outer surface of the main body 1 .
[0028] During specific use, the warm water capacity inside the storage chamber 2 can be clearly observed through the setting of the observation window 8.
[0029] In this embodiment, the inner wall of the main body 1 is slidably connected with a piston block 9, the upper surface of the piston block 9 is fixedly connected with a push rod 10, the upper surface of the push rod 10 is provided with a pressure plate 11, and the upper surface of the pressure plate 11 is fixedly connected with an anti-slip rubber strip 12.
[0030] During specific use, when the pressing plate 11 is pressed, the push rod 10 can be driven by the pressing plate 11 and the piston block 9 can be driven by the push rod 10. The provision of the anti-slip rubber strip 12 can increase the friction between the finger and the pressing plate 11 to play an anti-slip role.
[0031] In this embodiment, a limiting groove 13 is provided on the upper surface of the main body 1 , and the limiting groove 13 is slidably connected to the push rod 10 .
[0032] During specific use, the setting of the limiting groove 13 can limit the push rod 10 to prevent the push rod 10 from rotating.
[0033] In this embodiment, a fixed block 14 is fixedly connected to the upper surface of the main body 1, and a sliding column 15 is slidably connected to one side of the fixed block 14. One end of the sliding column 15 passes through one side of the fixed block 14 and extends to the other side of the fixed block 14. One end of the sliding column 15 is fixedly connected to a clamping block 16.
[0034] During specific use, the sliding column 15 can slide with the fixed block 14 , and the sliding of the sliding column 15 can drive the movement of the clamping block 16 .
[0035] In this embodiment, a pull ring 17 is fixedly connected to one end of the sliding column 15 , a spring 18 is fixedly connected to one side of the outer surface of the pull ring 17 , and one end of the spring 18 is fixedly connected to the fixed block 14 .
[0036] During specific use, pulling the pull ring 17 can drive the sliding column 15 to move, and drive the block 16 to move. When the push rod 10 moves downward, the inclined groove 19 pushes the block 16 so that the block 16 can drive the sliding column 15 to move toward the pull ring 17. When the other inclined groove 19 reaches the position of the block 16, the block 16 can be inserted into the inclined groove 19 under the action of the spring 18. Under this condition, the push rod 10 can only move downward and cannot move upward, thereby limiting the push rod 10.
[0037] In this embodiment, an oblique groove 19 is formed on one side of the outer surface of the push rod 10 , and the oblique groove 19 is movably connected to the clamping block 16 .
[0038] During specific use, the block 16 can be inserted into the inclined slot 19 to limit the movement of the push rod 10 so that the push rod 10 can only move downward.
[0039] Working principle: During use, pull the pull ring 17 so that the slide column 15 drives the block 16 to disengage from the inclined groove 19, pull the pressure plate 11 to drive the piston block 9 through the push rod 10, and use the injection head 7 to suck the contrast agent so that the contrast agent enters the main body 1. When the contrast agent is sucked into the main body 1, open the first cover 4, and fill the storage chamber 2 with warm water through the filling pipe 3. The contrast agent in the main body 1 is heated by the heat of the warm water during the heat transfer process, so that the temperature of the contrast agent is more suitable when it is transported to the human body by the main body 1, reducing the irritation to the human body. When the warm water needs to be discharged, open the second cover 6, and discharge the warm water in the storage chamber 2 through the output pipe 5. The setting of the observation window 8 can clearly observe the warm water capacity inside the storage chamber 2, and the setting of the anti-slip rubber strip 12 can increase The friction between the fingers and the pressure plate 11 plays an anti-slip role. The setting of the limit groove 13 can limit the push rod 10 to prevent the push rod 10 from rotating. When the pressure plate 11 is pressed, the push rod 10 can drive the movement of the piston block 9 and discharge the contrast agent through the injection head 7. When the push rod 10 moves downward, the inclined groove 19 pushes the block 16 so that the block 16 can drive the slide column 15 to move toward the pull ring 17. When the other inclined groove 19 reaches the position of the block 16, the block 16 can be inserted into the inclined groove 19 under the action of the spring 18. Under this condition, the push rod 10 can only move downward but not upward, thereby limiting the push rod 10 to prevent the push rod 10 from moving in the opposite direction due to accidental touch during operation. When the push rod 10 needs to move in the opposite direction, the pull ring 17 is pulled to make the block 16 disengage from the inclined groove 19 through the slide column 15.
[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A contrast medium injector, comprising a main body (1), characterized in that: The inner wall of the main body (1) is provided with a storage cavity (2); one side of the outer surface of the main body (1) is fixedly connected to a filling pipe (3); one end of the filling pipe (3) passes through the outer surface of the main body (1) and is in communication with the storage cavity (2); the other end of the filling pipe (3) is threadedly connected to a first sealing cover (4); one side of the outer surface of the main body (1) is fixedly connected to an output pipe (5); one end of the output pipe (5) passes through the outer surface of the main body (1) and is in communication with the storage cavity (2); One end of the output tube (5) is threadedly connected to a second sealing cap (6), and the lower surface of the main body (1) is fixedly connected to an injection head (7). A fixed block (14) is fixedly connected to the upper surface of the main body (1), a sliding column (15) is slidably connected to one side of the fixed block (14), one end of the sliding column (15) passes through one side of the fixed block (14) and extends to the other side of the fixed block (14), and one end of the sliding column (15) is fixedly connected to a clamping block (16); One end of the sliding column (15) is fixedly connected to a pull ring (17), one side of the outer surface of the pull ring (17) is fixedly connected to a spring (18), and one end of the spring (18) is fixedly connected to the fixed block (14).
2. A contrast agent injector according to claim 1, characterized in that: An observation window (8) is provided on one side of the outer surface of the main body (1).
3. A contrast agent injector according to claim 1, characterized in that: The inner wall of the main body (1) is slidably connected to a piston block (9), the upper surface of the piston block (9) is fixedly connected to a push rod (10), the upper surface of the push rod (10) is provided with a pressure plate (11), and the upper surface of the pressure plate (11) is fixedly connected to an anti-slip rubber strip (12).
4. A contrast agent injector according to claim 1, characterized in that: A limiting groove (13) is provided on the upper surface of the main body (1), and the limiting groove (13) is slidably connected to the push rod (10).
5. A contrast agent injector according to claim 3, characterized in that: An oblique groove (19) is provided on one side of the outer surface of the push rod (10), and the oblique groove (19) is movably connected to the clamping block (16).