Labor-saving contrast medium foaming device
Patent Information
- Application Number
- CN202522634010.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-12
AI Technical Summary
针对现有技术的不足，本实用新型提供了一种省力的造影剂发泡装置，解决了现有的注射装置在进行造影剂发泡操作时，普遍依赖医护人员手动摇晃或挤压装置来促使造影剂与空气混合发泡，手动摇晃或挤压需要医护人员投入额外的时间和体力，且手动操作的力度、频率和幅度难以保持稳定，手动摇晃或挤压过程中，装置的密封性可能因操作不当受到影响，容易出现造影剂渗漏或空气无序流动的情况的技术问题
本申请通过设置了注射筒、轴向推杆与储液筒、活塞板配合，以此可通过往复推动和抽吸轴向推杆带动造影剂在注射筒与储液筒之间循环流动，实现造影剂在注射器相关结构内的发泡，无需人工摇晃，有效简化了发泡操作流程，降低了医护人员的工作强度。本申请通过设置了活塞板、压板与微型软针配合，以此在活塞板随造影剂流动上下移动时，压板会带动微型软针对循环的造影剂产生扰动，能够促进造影剂与空气更充分地混合，提升发泡效果的稳定性，减少因混合不均导致的发泡质量问题。
Smart Images
Figure CN224912147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of contrast agent foaming technology, and in particular to a labor-saving contrast agent foaming device. Background Technology
[0002] Contrast agents are special medical media used to enhance the contrast of medical images. They are widely used in imaging examinations such as CT and ultrasound, helping medical staff to more clearly observe the morphology and lesions of internal tissues and organs. Some contrast agents need to be mixed with air to form a foam state before use. The acoustic or imaging properties of the foam further improve the clarity and accuracy of image diagnosis.
[0003] However, existing contrast agent foaming devices have the following drawbacks: they generally rely on medical staff to manually shake or squeeze the device to mix the contrast agent with air and foam. Manual shaking or squeezing requires additional time and effort from medical staff, and it is difficult to maintain a stable force, frequency, and amplitude of manual operation. During manual shaking or squeezing, the device's sealing may be affected by improper operation, which can easily lead to contrast agent leakage or disordered air flow.
[0004] Therefore, a labor-saving contrast agent foaming device is proposed to facilitate rapid foaming of the contrast agent, making the foaming of the contrast agent more labor-saving. Utility Model Content
[0005] Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a labor-saving contrast agent foaming device. It solves the problem that existing injection devices generally rely on medical staff to manually shake or squeeze the device to mix the contrast agent with air during contrast agent foaming operations. Manual shaking or squeezing requires medical staff to invest additional time and physical strength, and it is difficult to maintain a stable force, frequency, and amplitude of manual operation. During manual shaking or squeezing, the sealing performance of the device may be affected by improper operation, which can easily lead to contrast agent leakage or disordered air flow.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A labor-saving contrast agent foaming device includes an injection cylinder and a reservoir. The reservoir has an adjustment mechanism to facilitate contrast agent foaming. The adjustment mechanism includes a piston plate and a connecting pipe. The piston plate is slidably mounted on the inner wall of the reservoir. The connecting pipe is located between the injection cylinder and the reservoir. An axial push rod is slidably mounted on the inner wall of the injection cylinder. A first connector is fixedly mounted on the lower end of the injection cylinder. A top cover plate is fixedly mounted on the upper end of the reservoir. A second connector is fixedly mounted on the lower end of the reservoir. The connecting pipe is fixedly mounted between the first connector and the second connector. An adjustment valve is fixedly mounted on the connecting pipe.
[0007] Preferably, a spring is fixedly installed between the piston plate and the top cover plate.
[0008] Preferably, a pressure plate is fixedly installed at the lower end of the piston plate, and a plurality of miniature soft needles are fixedly installed at the lower end of the pressure plate.
[0009] Compared with the prior art, the present invention has the following beneficial effects. This application utilizes a syringe, axial push rod, reservoir, and piston plate in conjunction. This allows the contrast agent to circulate between the syringe and reservoir via the reciprocating push and aspiration of the axial push rod, achieving foaming of the contrast agent within the syringe's components. This eliminates the need for manual shaking, effectively simplifying the foaming process and reducing the workload of medical staff. Furthermore, this application incorporates a piston plate, pressure plate, and micro-needle in conjunction. As the piston plate moves up and down with the contrast agent flow, the pressure plate causes the micro-needle to agitate the circulating contrast agent, promoting more thorough mixing of the contrast agent and air, improving the stability of the foaming effect, and reducing foaming quality problems caused by uneven mixing. Attached Figure Description
[0010] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0011] Figure 1 This is a structural diagram of the injection cylinder of this utility model; Figure 2 This is a structural diagram of the liquid storage cylinder of this utility model; Figure 3 This is a structural diagram of the axial push rod of this utility model; Figure 4 This is a structural diagram of the piston plate of this utility model.
[0012] Legend: 1. Injector; 11. First connector; 12. Axial push rod; 2. Liquid reservoir; 21. Top cover plate; 22. Second connector; 3. Piston plate; 31. Spring; 32. Pressure plate; 33. Miniature soft needle; 4. Connecting tube; 41. Adjusting valve. Detailed Implementation
[0013] This application provides a labor-saving contrast agent foaming device, effectively solving the problem that existing injection devices generally rely on medical staff to manually shake or squeeze the device to mix the contrast agent with air during contrast agent foaming operations. Manual shaking or squeezing requires additional time and effort from medical staff, and it is difficult to maintain a stable force, frequency, and amplitude during manual operation. During manual shaking or squeezing, the sealing performance of the device may be affected by improper operation, easily leading to contrast agent leakage or disordered air flow. This application sets up an injection cylinder 1, an axial push rod 12, a reservoir cylinder 2, and a piston plate 3 to cooperate. This allows the contrast agent to circulate between the injection cylinder 1 and the reservoir cylinder 2 by reciprocating pushing and drawing the axial push rod 12, realizing the foaming of the contrast agent within the relevant structures of the syringe. It eliminates the need for manual shaking, effectively simplifying the foaming operation process and reducing the workload of medical staff. Example
[0014] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application effectively solves the problem that existing injection devices, when performing contrast agent foaming operations, generally rely on medical staff to manually shake or squeeze the device to mix the contrast agent with air for foaming. Manual shaking or squeezing requires additional time and effort from medical staff, and the force, frequency, and amplitude of manual operation are difficult to maintain consistently. Furthermore, the device's sealing performance may be affected by improper operation during manual shaking or squeezing, easily leading to contrast agent leakage or disordered airflow. The overall concept is as follows: A labor-saving contrast agent foaming device includes an injection cylinder 1 and a reservoir 2, wherein the reservoir 2 is equipped with features to facilitate contrast agent foaming. The adjustment mechanism includes a piston plate 3 and a connecting pipe 4. The piston plate 3 is slidably installed on the inner wall of the reservoir 2. The connecting pipe 4 is located between the syringe 1 and the reservoir 2. An axial push rod 12 is slidably installed on the inner wall of the syringe 1. A first connector 11 is fixedly installed at the lower end of the syringe 1. The foaming operation of this device is based on the synergistic effect of the syringe 1 and the reservoir 2. The foaming process of the contrast agent is realized by reciprocating pushing and drawing the axial push rod 12 slidably installed on the inner wall of the syringe 1. When the medical staff pushes the axial push rod 12, the contrast agent in the syringe 1 will enter the connecting pipe 4 through the first connector 11 fixedly installed at its lower end under the action of the thrust. A top cover plate 21 is fixedly installed at the upper end of the reservoir 2, and a second connector 22 is fixedly installed at the lower end of the reservoir 2. The contrast agent then enters the reservoir 2 through the second connector 22 fixedly installed at the lower end of the reservoir 2. After the contrast agent enters the reservoir 2; The connecting tube 4 is fixedly installed between the first connector 11 and the second connector 22. A regulating valve 41 is fixedly installed on the connecting tube 4. The regulating valve 41 fixedly installed on the connecting tube 4 can adjust the flow rate of the contrast agent as needed. A spring 31 is fixedly installed between the piston plate 3 and the top cover plate 21. A pressure plate 32 is fixedly installed at the lower end of the piston plate 3. After the contrast agent enters the reservoir 2, it will generate an upward thrust on the piston plate 3, which is slidably installed on the inner wall of the reservoir 2, causing the piston plate 3 to move upward. At this time, the spring 31 fixedly installed between the piston plate 3 and the top cover plate 21 fixedly installed at the upper end of the reservoir 2 will be compressed and store elastic potential energy. When the medical staff aspirates the axial push rod 12, a negative pressure is formed in the syringe 1. Under the combined action of the negative pressure attraction and the elastic restoring force of the spring 31, the piston plate 3 will move downward, drawing the contrast agent in the reservoir 2 back into the syringe 1. By repeatedly pushing and drawing the axial push rod 12, the contrast agent can circulate between the syringe 1 and the reservoir 2. Multiple micro-needles 33 are fixedly installed at the lower end of the pressure plate 32. During this process, the pressure plate 32 fixedly installed at the lower end of the piston plate 3 will move synchronously with the piston plate 3 moving up and down. The multiple micro-needles 33 fixedly installed at the lower end of the pressure plate 32 will disturb the circulating contrast agent, assisting the contrast agent to mix fully with the air, and thus gradually realize the foaming of the contrast agent. After the foaming of the contrast agent is completed, the connecting tube 4 can be disassembled from the first connector 11 on the syringe 1, and the first connector 11 can be connected to the indwelling needle for injection of the contrast agent.
[0015] To address the problems existing in the prior art, this utility model provides a labor-saving contrast agent foaming device. This application sets up an injection cylinder 1, an axial push rod 12, a liquid reservoir 2, and a piston plate 3 to cooperate. In this way, the contrast agent can be driven to circulate between the injection cylinder 1 and the liquid reservoir 2 by reciprocating pushing and suction of the axial push rod 12, so as to realize the foaming of the contrast agent in the relevant structure of the syringe without manual shaking, effectively simplifying the foaming operation process and reducing the workload of medical staff.
[0016] Working principle: The foaming operation of this device is based on the synergistic action of the syringe 1 and the reservoir 2. The foaming process of the contrast agent is achieved by reciprocatingly pushing and drawing in the axial push rod 12, which is slidably installed on the inner wall of the syringe 1. When the medical staff pushes the axial push rod 12, the contrast agent in the syringe 1 will enter the connecting tube 4 through the first connector 11 fixedly installed at its lower end under the pushing force. The regulating valve 41 fixedly installed on the connecting tube 4 can adjust the flow rate of the contrast agent as needed. The contrast agent then enters the reservoir 2 through the second connector 22 fixedly installed at the lower end of the reservoir 2. After the contrast agent enters the reservoir 2, it will generate an upward pushing force on the piston plate 3 slidably installed on the inner wall of the reservoir 2, causing the piston plate 3 to move upward. At this time, the spring 31 fixedly installed between the piston plate 3 and the top cover plate 21 fixedly installed at the upper end of the reservoir 2 will be compressed and store elasticity. Potential energy is generated when medical staff aspirate the axial push rod 12, creating a negative pressure inside the syringe 1. Under the combined action of the negative pressure attraction and the elastic restoring force of the spring 31, the piston plate 3 moves downward, drawing the contrast agent from the reservoir 2 back into the syringe 1. This repeated pushing and aspiration of the axial push rod 12 allows the contrast agent to circulate between the syringe 1 and the reservoir 2. During this process, the pressure plate 32, which is fixedly installed at the lower end of the piston plate 3, moves synchronously with the up-and-down movement of the piston plate 3. Multiple micro-needles 33, which are fixedly installed at the lower end of the pressure plate 32, disturb the circulating contrast agent, helping to fully mix the contrast agent with air and gradually achieve foaming of the contrast agent. After the contrast agent foaming is completed, the connecting tube 4 can be disassembled from the first connector 11 on the syringe 1, and the first connector 11 can be connected to the indwelling needle for contrast agent injection. Existing injection devices generally rely on manual shaking or squeezing by medical staff to mix the contrast agent with air during contrast agent foaming. Manual shaking or squeezing requires additional time and effort from medical staff, and it is difficult to maintain a stable force, frequency, and amplitude during manual operation. During manual shaking or squeezing, the sealing of the device may be affected by improper operation, which can easily lead to contrast agent leakage or disordered air flow. This application solves the problem by setting up an injection cylinder 1, an axial push rod 12, a reservoir 2, and a piston plate 3 to cooperate. This allows the contrast agent to circulate between the injection cylinder 1 and the reservoir 2 through the reciprocating pushing and suction of the axial push rod 12, realizing the foaming of the contrast agent within the relevant structures of the syringe without the need for manual shaking. This effectively simplifies the foaming operation process and reduces the workload of medical staff. This application sets up a piston plate 3, a pressure plate 32 and a micro soft needle 33 to work together. When the piston plate 3 moves up and down with the contrast agent, the pressure plate 32 will drive the micro soft needle 33 to disturb the circulating contrast agent, which can promote more thorough mixing of the contrast agent and air, improve the stability of the foaming effect, and reduce foaming quality problems caused by uneven mixing.
[0017] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A labor-saving contrast agent foaming device, comprising an injection cylinder (1) and a reservoir (2), characterized in that, The liquid storage cylinder (2) has an adjustment mechanism to facilitate the foaming of the contrast agent; The adjusting mechanism includes a piston plate (3) and a connecting pipe (4). The piston plate (3) is slidably installed on the inner wall of the liquid storage cylinder (2), and the connecting pipe (4) is located between the injection cylinder (1) and the liquid storage cylinder (2).
2. The labor-saving contrast agent foaming device as described in claim 1, characterized in that: An axial push rod (12) is slidably installed on the inner wall of the injection cylinder (1), and a first connector (11) is fixedly installed at the lower end of the injection cylinder (1).
3. The labor-saving contrast agent foaming device as described in claim 2, characterized in that: The upper end of the liquid storage cylinder (2) is fixedly installed with a top cover plate (21).
4. The labor-saving contrast agent foaming device as described in claim 3, characterized in that: The lower end of the liquid storage cylinder (2) is fixedly installed with a second connector (22).
5. The labor-saving contrast agent foaming device as described in claim 4, characterized in that: The connecting pipe (4) is fixedly installed between the first connector (11) and the second connector (22).
6. The labor-saving contrast agent foaming device as described in claim 5, characterized in that: A regulating valve (41) is fixedly installed on the connecting pipe (4).
7. The labor-saving contrast agent foaming device as described in claim 6, characterized in that: A spring (31) is fixedly installed between the piston plate (3) and the top cover plate (21).
8. The labor-saving contrast agent foaming device as described in claim 7, characterized in that: A pressure plate (32) is fixedly installed at the lower end of the piston plate (3), and a plurality of micro soft needles (33) are fixedly installed at the lower end of the pressure plate (32).