Radiology contrast medium heating and injection device
By introducing a heating mechanism and a push-in structure into the contrast agent injection device, the temperature of the contrast agent can be monitored and controlled in real time, solving the problems of patient discomfort and examination interference caused by temperature differences of the contrast agent, and achieving stable injection of the contrast agent and accurate examination results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-08-04
AI Technical Summary
Existing contrast agent injection devices lack temperature regulation capabilities, resulting in a large temperature difference between the contrast agent at room temperature and the human body temperature, causing patient discomfort, vasoconstriction, and interference with examination results.
A radiology contrast agent heating and injection device was designed, which includes a heating mechanism and an injection structure. The device uses an electric heating element and a temperature sensor to monitor and control the contrast agent temperature in real time, maintaining it within the range of 38-40℃, and achieves stable injection through an electric push rod.
It achieves constant temperature control of the contrast agent, avoids vasoconstriction, ensures normal flow and uniform distribution of the contrast agent in the body, and improves the accuracy of examination results and patient comfort.
Smart Images
Figure CN224585130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, and in particular to a radiology contrast agent heating injection device. Background Technology
[0002] Contrast agents are widely used in various radiological examinations. For example, when patients undergo imaging examinations such as MRI and enhanced CT, they need to be injected into the body through peripheral superficial veins. They can significantly improve the contrast and clarity of images, thereby assisting doctors in making more accurate disease diagnoses.
[0003] The injection of contrast agents involves the use of a high-pressure contrast agent injector. The high cost of the high-pressure contrast agent injector allows it to be reused. However, the syringe attached to the high-pressure contrast agent injector is essentially a disposable product. Moreover, if the syringe is not properly attached to the high-pressure contrast agent injector, it may fall off during use.
[0004] An existing patent (publication number: CN221830622U) discloses a contrast agent injection device. This utility model uses a sealing ring on the inner side of the syringe to lock the syringe to the connector, so that the syringe can be fixed to the connector. Then, the syringe is locked again by the connecting mechanism, so that the syringe will not fall off the base.
[0005] To address the aforementioned issues, existing patents offer solutions. However, the contrast agents in existing contrast agent injection devices are mostly stored at room temperature, which differs significantly from human body temperature. When contrast agents at room temperature are directly injected into a patient, the device lacks the ability to precisely adjust and stably control the temperature of the contrast agent based on the patient's condition. This makes it difficult to maintain the contrast agent within the ideal temperature range that is comfortable for the patient and conducive to examination. Consequently, patients experience significant discomfort during injection, especially due to local cold stimulation, which can easily trigger vasoconstriction. Vasoconstriction hinders the normal flow and uniform distribution of the contrast agent within the body, ultimately interfering with the accuracy of examination results and affecting the doctor's accurate diagnosis.
[0006] Therefore, a radiology contrast agent heating injection device is proposed. Utility Model Content
[0007] The purpose of this invention is to provide a radiology contrast agent heating injection device that addresses the problem that existing contrast agents are mostly stored at room temperature, which differs significantly from human body temperature. When contrast agents at room temperature are directly injected into a patient, the device lacks the ability to precisely adjust and stably control the temperature of the contrast agent according to the patient's condition. This makes it difficult to maintain the contrast agent at an ideal temperature range that is comfortable for the patient and conducive to examination. Consequently, patients experience significant discomfort during injection, especially due to local cold stimulation, which can easily trigger vasoconstriction. Vasoconstriction hinders the normal flow and uniform distribution of the contrast agent within the body, ultimately interfering with the accuracy of examination results and affecting the doctor's accurate judgment of the patient's condition.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a radiology contrast agent heating injection device, comprising a housing, an automatic controller provided on the top of the housing, a battery provided on the rear side inside the housing, an on / off button embedded in the top of the housing, a heating mechanism provided on the front side of the housing, a syringe provided inside the heating mechanism, and a push-in structure provided inside the housing.
[0009] The heating mechanism includes a fixed sleeve bolted to the front side of the housing. A limiting groove is formed on the top of the fixed sleeve. The inside of the limiting groove is engaged with the rear side of the syringe. A carrier sleeve is fixedly connected to the front side of the fixed sleeve. A fixed sleeve is rotatably connected to the top of the carrier sleeve. The fixed sleeve and the carrier sleeve are located outside the syringe. An electric heating element is embedded inside the carrier sleeve and the fixed sleeve. A septum is adhered to the inner side of the electric heating element. The septum is located outside the syringe. A temperature sensor is embedded in the inner side of the septum.
[0010] Preferably, the injection structure includes an electric push rod embedded inside the housing, the electric push rod being electrically connected to the automatic controller, and the telescopic end of the electric push rod penetrating through the front side of the housing.
[0011] Preferably, the telescopic end of the electric push rod is fixedly connected to a connecting rod, and a push plate is bolted to the front side of the connecting rod.
[0012] Preferably, an adhesive pad is bonded to the front side of the push plate, and the adhesive pad is located on the rear side of the syringe.
[0013] Preferably, a reinforcing pad is bonded to both the front and rear sides inside the limiting groove, and the inner side of the reinforcing pad contacts the outer side of the rear side of the syringe.
[0014] Preferably, a display screen is embedded in the front side of the top of the housing, and the display screen is electrically connected to the automatic controller, the electric heating element, the temperature sensor and the electric push rod respectively.
[0015] Preferably, an acceleration button and a deceleration button are respectively provided on the front and rear sides of the top of the controller, and both the acceleration button and the deceleration button are electrically connected to the controller.
[0016] Preferably, a charging port is embedded in the rear side of the housing, and the charging port is electrically connected to the battery.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This application incorporates a heating mechanism that uses electric heating elements inside the carrier sleeve and the fixed sleeve to heat the contrast agent in the syringe. A temperature sensor inside the septum monitors the contrast agent temperature in real time and feeds the data back to the automatic controller. The automatic controller precisely adjusts the electric heating elements based on the feedback information to keep the contrast agent stably maintained within the comfortable temperature range of 38-40℃, achieving constant temperature control. At the same time, the automatic controller can also readjust the temperature according to actual conditions to ensure that the contrast agent is at an ideal temperature that is both comfortable for the human body and conducive to examination. This avoids vasoconstriction caused by cold stimulation, ensures the normal flow and uniform distribution of the contrast agent in the body, and thus improves the accuracy of the examination results.
[0019] 2. By setting up a push-in structure, this application can achieve stable push-in of the syringe, ensuring that the contrast agent at a suitable temperature can be injected into the patient's body at an appropriate speed and dosage, thereby further improving the stability of the injection process and the effect of the contrast examination. Attached Figure Description
[0020] Figure 1 This is an overall structural diagram of the radiology contrast agent heating and injection device of this utility model;
[0021] Figure 2 This is a structural diagram of the shell of this utility model;
[0022] Figure 3 This is a structural diagram of the heating mechanism of this utility model;
[0023] Figure 4 This is a structural diagram of the injection molding structure of this utility model;
[0024] Figure 5 This is a structural diagram of the fixing sleeve of this utility model.
[0025] In the diagram, 1. Housing; 2. Automatic controller; 3. Battery; 4. On / off button; 5. Heating mechanism; 51. Fixed sleeve; 52. Limiting groove; 53. Carrier sleeve; 54. Fixed sleeve; 55. Electric heating element; 56. Spacing pad; 57. Temperature sensor; 6. Syringe; 7. Charging port; 8. Injection mechanism; 81. Electric push rod; 82. Connecting rod; 83. Push plate; 84. Fitting pad; 9. Reinforcing pad; 10. Display screen; 11. Acceleration button; 12. Deceleration button. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-5 The present invention provides the following technical solution:
[0028] A radiology contrast agent heating injection device includes a housing 1, a self-controller 2 on the top of the housing 1, a battery 3 on the rear side inside the housing 1, an on / off switch 4 embedded in the top of the housing 1, a heating mechanism 5 on the front side of the housing 1, a syringe 6 inside the heating mechanism 5, and a push injection structure 8 inside the housing 1.
[0029] The heating mechanism 5 includes a fixed sleeve 51 bolted to the front side of the housing 1. A limiting groove 52 is formed on the top of the fixed sleeve 51. The inside of the limiting groove 52 is engaged with the rear side of the syringe 6. A carrier sleeve 53 is fixedly connected to the front side of the fixed sleeve 51. A fixed sleeve 54 is rotatably connected to the top of the carrier sleeve 53. The fixed sleeve 54 and the carrier sleeve 53 are located outside the syringe 6. An electric heating element 55 is embedded inside the carrier sleeve 53 and the fixed sleeve 54. A septum 56 is bonded to the inner side of the electric heating element 55. The septum 56 is located outside the syringe 6. A temperature sensor 57 is embedded in the inner side of the septum 56.
[0030] In this embodiment: By setting up a heating mechanism 5 and an injection structure 8, when the device is needed for contrast agent injection, medical personnel first turn on the on / off switch 4 located at the top of the housing 1, and the device is powered on and started. Power is provided by the battery 3 on the rear side of the housing 1. Medical personnel insert the syringe 6 containing the contrast agent into the limiting groove 52 on the front side of the top of the fixed sleeve 51, and then rotate the fixed sleeve 54 to engage with the carrier sleeve 53, so that the syringe 6 is securely placed inside the two. At this time, the electric heating element 55 inside the carrier sleeve 53 and the fixed sleeve 54 starts to work, heating the contrast agent in the syringe 6. The temperature sensor 57 embedded in the inner side of the septum 56 continuously and in real time monitors the temperature of the contrast agent and feeds back the temperature data to the automatic controller 2 located at the top of the housing 1. The automatic controller 2 precisely controls the electric heating element 55 according to the received feedback information. If the temperature of the contrast agent is lower than 38°C, the automatic controller 2 increases the power of the electric heating element 55. The heating speed is accelerated. If the temperature exceeds 40℃, the power of the electric heating element is reduced by 55 or heating is temporarily stopped, thereby stabilizing the contrast agent within the comfortable temperature range of 38-40℃, achieving constant temperature control. Simultaneously, the automatic controller 2 can readjust the temperature according to the patient's specific condition and examination requirements, ensuring the contrast agent is at an ideal temperature that is both comfortable for the body and conducive to examination. After the contrast agent reaches the appropriate temperature, the injection structure 8 inside the housing 1 begins to operate. Located behind the syringe 6, the injection structure 8 provides stable injection to the syringe 6, allowing the contrast agent at the appropriate temperature to be accurately injected into the patient's body at a suitable speed and dosage via the connected injection needle. This process ensures the normal flow and uniform distribution of the contrast agent within the body, effectively avoiding vasoconstriction caused by cold stimulation, significantly improving the stability of the injection process and the effectiveness of the contrast examination, thereby enhancing the accuracy of the examination results.
[0031] Specifically, such as Figure 4 As shown, the injection structure 8 includes an electric push rod 81 embedded inside the housing 1. The electric push rod 81 is electrically connected to the automatic controller 2, and the telescopic end of the electric push rod 81 passes through the front side of the housing 1.
[0032] Specifically, such as Figure 4 As shown, the telescopic end of the electric push rod 81 is fixedly connected to a connecting rod 82, and a push plate 83 is bolted to the front side of the connecting rod 82.
[0033] Specifically, such as Figure 4 As shown, an adhesive pad 84 is bonded to the front side of the push plate 83, and the adhesive pad 84 is located on the rear side of the syringe 6.
[0034] In this embodiment: by setting the injection structure 8, the automatic controller 2 issues a command, and the telescopic end of the electric push rod 81 begins to move. The telescopic end of the electric push rod 81 penetrates the front side of the housing 1. The connecting rod 82 fixedly connected to it moves with the movement of the telescopic end. The push plate 83 bolted to the front side of the connecting rod 82 pushes the syringe 6. The adhesive pad 84 bonded to the front side of the push plate 83 is in close contact with the rear side of the syringe 6, which can effectively increase the friction and ensure that there is no slippage during the injection process, thus achieving stable injection of the syringe 6. This allows the contrast agent at a suitable temperature to be accurately injected into the patient's body through the injection needle at a suitable speed and dosage, greatly improving the stability of the injection process, ensuring the normal flow and uniform distribution of the contrast agent in the body, and thus improving the effect and accuracy of the contrast examination results.
[0035] Specifically, such as Figure 5 As shown, reinforcing pads 9 are bonded to both the front and rear sides inside the limiting groove 52, and the inner side of the reinforcing pads 9 contacts the outer side of the rear side of the syringe 6.
[0036] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, a display screen 10 is embedded in the front side of the top of the housing 1. The display screen 10 is electrically connected to the automatic controller 2, the electric heating element 55, the temperature sensor 57 and the electric push rod 81.
[0037] In this embodiment: By setting up a reinforcing pad 9 and a display screen 10, when the syringe 6 is placed, the reinforcing pad 9, which is bonded to the front and rear sides inside the limiting groove 52, plays a role. The inner side of the reinforcing pad 9 is in close contact with the outer side of the rear side of the syringe 6, which reinforces and stabilizes the syringe 6, preventing the syringe 6 from shaking or shifting during injection, and ensuring the stability of the entire operation process. The display screen 10, which is embedded in the front top of the housing 1, is electrically connected to the automatic controller 2, the electric heating element 55, the temperature sensor 57, and the electric push rod 81. The display screen 10 can display key information such as the temperature of the contrast agent, the working status of the electric heating element 55, and the injection speed of the electric push rod 81 in real time, so that medical staff can understand the operation of the device at any time and make timely adjustments, thereby improving the convenience and accuracy of operation.
[0038] Specifically, such as Figure 4 As shown, an acceleration button 11 and a deceleration button 12 are respectively provided on the front and rear sides of the top of the automatic controller 2. Both the acceleration button 11 and the deceleration button 12 are electrically connected to the automatic controller 2.
[0039] Specifically, such as Figure 4 As shown, a charging port 7 is embedded in the rear side of the housing 1, and the charging port 7 is electrically connected to the battery 3.
[0040] In this embodiment, by setting an acceleration button 11, a deceleration button 12, and a charging port 7, medical staff can adjust the injection speed during operation using the acceleration button 11 and deceleration button 12 located on the front and rear sides of the top of the controller 2, respectively. Pressing the acceleration button 11 will control the electric push rod 81 to accelerate its extension and retraction speed, thereby increasing the injection speed of the contrast agent. Pressing the deceleration button 12 will reduce the injection speed. This allows medical staff to flexibly adjust the injection speed according to the patient's actual response and examination needs, further improving the flexibility and accuracy of the operation. The charging port 7 embedded in the rear side of the housing 1 is electrically connected to the battery 3, facilitating charging when the battery 3 is low, ensuring continuous and stable operation of the device, meeting the usage needs of different scenarios, and improving the practicality of the device.
[0041] Working Principle: During the use of the contrast agent injection device in the radiology department, medical staff first turn on the on / off switch 4 located on the top of the housing 1 to power on the device. Power is provided by the battery 3 located on the rear side of the housing 1. At this time, the syringe 6 containing the contrast agent is inserted into the limiting groove 52 at the top of the fixed sleeve 51. The fixed sleeve 54 is rotated to engage with the carrier sleeve 53, making the syringe 6 securely placed in the septum 56. The electric heating element 55 in the carrier sleeve 53 and the fixed sleeve 54 starts to work, heating the contrast agent through the septum 56. The temperature sensor 57 inside the septum 56 monitors the temperature of the contrast agent in real time and feeds the data back to the automatic controller 2. The automatic controller 2 precisely adjusts the electric heating element 55 based on the feedback to keep the contrast agent stable within a comfortable temperature range of 38-40℃, achieving constant temperature. It can also be adjusted to the ideal temperature according to the actual situation. After the contrast agent reaches the appropriate temperature, the injection process is initiated. The automatic controller 2 moves the electric push rod... The 81 device issues a command, causing its telescopic end to move the connecting rod 82 and the push plate 83. The front of the push plate 83, the contact pad 84, is in close contact with the rear of the syringe 6, stably pushing the syringe 6 so that the contrast agent at the appropriate temperature is injected into the patient's body through the injection needle at a suitable speed and dose. During this process, the reinforcing pad 9 in the limiting groove 52 is in close contact with the syringe 6 to prevent it from shaking or shifting, ensuring operational stability. The display screen 10 on the top of the housing 1 displays information such as the contrast agent temperature, the status of the electric heating pad 55, and the injection speed of the electric push rod 81 in real time, which is convenient for medical staff to monitor and adjust. In addition, medical staff can flexibly control the telescopic speed of the electric push rod 81 and adjust the contrast agent injection speed through the acceleration button 11 or deceleration button 12 on the self-controller 2. When the battery 3 is low on power, it can be charged through the charging port 7 on the rear of the housing 1 to ensure continuous and stable operation of the device and meet the needs of different scenarios.
[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A radiology contrast agent heating injection device, comprising a housing (1), characterized in that: The top of the housing (1) is provided with a self-controller (2), the rear side inside the housing (1) is provided with a storage battery (3), the top of the housing (1) is embedded with an opening and closing key (4), the front side of the housing (1) is provided with a heating mechanism (5), the inside of the heating mechanism (5) is provided with a syringe (6), and the inside of the housing (1) is provided with a push-in structure (8). The heating mechanism (5) includes a fixed sleeve (51) bolted to the front side of the housing (1). A limiting groove (52) is provided on the top of the fixed sleeve (51). The inside of the limiting groove (52) is engaged with the rear side of the syringe (6). A carrier sleeve (53) is fixedly connected to the front side of the fixed sleeve (51). A fixed sleeve (54) is rotatably connected to the top of the carrier sleeve (53). The fixed sleeve (54) and the carrier sleeve (53) are located outside the syringe (6). An electric heating element (55) is embedded inside the carrier sleeve (53) and the fixed sleeve (54). A septum (56) is bonded to the inner side of the electric heating element (55). The septum (56) is located outside the syringe (6). A temperature sensor (57) is embedded in the inner side of the septum (56).
2. The radiology contrast agent heating injection device according to claim 1, characterized in that: The injection structure (8) includes an electric push rod (81) embedded inside the housing (1). The electric push rod (81) is electrically connected to the automatic controller (2). The telescopic end of the electric push rod (81) passes through the front side of the housing (1).
3. The radiology contrast agent heating injection device according to claim 2, characterized in that: The telescopic end of the electric push rod (81) is fixedly connected to a connecting rod (82), and a push plate (83) is bolted to the front side of the connecting rod (82).
4. The radiology contrast agent heating injection device according to claim 3, characterized in that: An adhesive pad (84) is bonded to the front side of the push plate (83), and the adhesive pad (84) is located on the rear side of the syringe (6).
5. The radiology contrast agent heating injection device according to claim 1, characterized in that: The front and rear sides of the limiting groove (52) are both bonded with reinforcing pads (9), and the inner side of the reinforcing pads (9) is in contact with the outer side of the rear side of the syringe (6).
6. The radiology contrast agent heating injection device according to claim 1, characterized in that: The front side of the top of the housing (1) is embedded with a display screen (10), which is electrically connected to the controller (2), the electric heating element (55), the temperature sensor (57) and the electric push rod (81).
7. The radiology contrast agent heating injection device according to claim 1, characterized in that: The front and rear sides of the top of the self-controller (2) are respectively provided with an acceleration button (11) and a deceleration button (12), and the acceleration button (11) and deceleration button (12) are electrically connected to the self-controller (2).
8. The radiology contrast agent heating injection device according to claim 1, characterized in that: The rear side of the housing (1) is embedded with a charging port (7), which is electrically connected to the battery (3).