A double-temperature-zone intelligent temperature control water tank system suitable for pediatric ECMO transfer

Abstract

This invention discloses a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport. The system includes a water tank with a partition separating a left chamber and a right chamber. A Y-shaped distributor is installed within the partition, with its inlet penetrating the top of the tank. Two temperature displays and two temperature adjustment buttons are located on one side of the tank, corresponding to the left and right chambers respectively. An oxygenator heating circuit connected to the left chamber is also located on one side of the tank. The left chamber contains a ceramic heating element and a Venturi jet mechanism connected to the oxygenator heating circuit. This invention, through the design of the left and right chambers, temperature displays, temperature adjustment buttons, oxygenator heating circuit, and heating hoses, can separately control the temperature of the oxygenator and the ECMO extracorporeal circulation tubing, coordinating the two heating systems to achieve precise temperature difference control.

Description

Technical Field

[0001] This utility model relates to the field of extracorporeal life support equipment technology, specifically to a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport. Background Technology

[0002] ECMO is an extracorporeal circulation technology. Its principle is to draw venous blood out of the body, oxygenate it through a special artificial heart-lung bypass, and then inject it into the patient's arterial or venous system, playing a partial role in replacing the heart and lungs and maintaining the oxygenated blood supply to the body's organs and tissues.

[0003] Currently, ECMO is usually used in conjunction with an oxygenator. Traditional water tanks only provide a single temperature output, which cannot meet the temperature control requirements of the oxygenator and ECMO extracorporeal circulation tubing. During transport, the tubing is exposed, leading to heat loss. The equipment lacks a low-flow adaptability design for pediatric use, which can easily cause coagulation or hemolysis risks. There is an urgent need to design a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport, in order to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport includes a water tank with a partition separating a left chamber and a right chamber. A Y-shaped distributor is installed within the partition, with its inlet penetrating the top of the water tank. Two temperature displays and two temperature adjustment buttons are located on one side of the water tank, corresponding to the left and right chambers respectively. An oxygenator heating circuit connected to the left chamber is also located on one side of the water tank. A ceramic heating element and a Venturi jet are installed within the left chamber. The water tank includes a Venturi jet mechanism connected to the oxygenator heating circuit. A micro turbine pump is installed at one end of the Venturi jet mechanism. A heating hose corresponding to the right chamber is located on one side of the water tank. A heating groove is opened on one side of the heating hose. A thin-film heating belt and a spiral copper tube heat exchanger are installed in the right chamber. The spiral copper tube heat exchanger is connected to the heating hose. A backup battery is installed on one side of the water tank. A power connector is located on one side of the backup battery. A switch is located on one side of the water tank. A temperature control system is installed inside the water tank. The temperature control system includes dual redundant temperature monitoring and a three-level alarm mechanism.

[0006] Furthermore, the throat diameter of the Venturi jet mechanism is 6±0.1mm, and the diffusion angle of the Venturi jet mechanism is 12°.

[0007] Furthermore, the spiral copper tube heat exchanger has a pitch of 10 mm, a tube diameter of 4 mm, and an antibacterial silver coating on its surface.

[0008] Furthermore, the three-level alarm mechanism includes: Level 1: Temperature difference > 1℃ for 10 seconds; Level 2: Temperature difference > 2℃ or pressure fluctuation > 15%; Level 3: Temperature > 42℃ or < 32℃ for 30 seconds.

[0009] Furthermore, the oxygenator heating circuit includes an outlet pipe connected to the Venturi jet mechanism and a return pipe installed in the left chamber. The outlet pipe is provided with a blue LED halo around its periphery and has a tapered thread. One end of the return pipe is provided with a Luer locking connector, and the periphery of the return pipe is provided with a convex-concave positioning keyway.

[0010] Furthermore, the Y-shaped diverter is equipped with two diversion regulating valves, one end of which is slidably and rotatably fitted with an adjusting rod, and the adjusting rod is slidably fitted on the top of the water tank.

[0011] In the above technical solution, the present invention provides a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport, which has the following advantages: With its left and right chambers, temperature display screen, temperature adjustment button, oxygenator heating circuit, and heating hose, the system can separately meet the temperature control needs of the oxygenator and ECMO extracorporeal circulation tubing, coordinate the two heating systems, and achieve precise temperature difference control. The system also features a venturi jet mechanism and a micro turbopump, which, combined with the micro turbopump and flow channel polishing technology, allows the venturi jet mechanism to be designed for low flow rates in pediatric settings, reducing the risk of coagulation or hemolysis. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the dual-temperature zone intelligent temperature-controlled water tank structure provided for an embodiment of the present invention, which is suitable for pediatric ECMO transport.

[0014] Figure 2 This is a schematic diagram of the left chamber structure of an embodiment of a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport according to this utility model.

[0015] Figure 3 This is a schematic diagram of the right chamber structure of an embodiment of a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport according to this utility model.

[0016] Figure 4 This is a block diagram showing the connection of a temperature control system for a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport, as provided in this utility model.

[0017] Figure 5 This is a logic block diagram of a temperature control system provided for an embodiment of a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport according to this utility model.

[0018] 1. Water tank; 2. Baffle plate; 3. Left chamber; 4. Right chamber; 5. Y-shaped diverter; 6. Temperature display screen; 7. Temperature adjustment button; 8. Oxygenator heating circuit; 9. Ceramic heating element; 10. Venturi jet mechanism; 11. Miniature turbo pump; 12. Heating hose; 13. Heating tank; 14. Thin-film heating belt; 15. Spiral copper tube heat exchanger; 16. Backup battery; 17. Power connector; 18. Switch; 19. Diverter valve; 20. Adjusting rod. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-5 As shown in the figure, this utility model provides a dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport.

[0021] The system includes a water tank 1, which is equipped with a partition 2 that divides the water tank 1 into a left chamber 3 and a right chamber 4. A Y-shaped distributor 5 is installed inside the partition 2, with its inlet penetrating the top of the water tank 1. Two temperature displays 6 and two temperature adjustment buttons 7 are located on one side of the water tank 1, corresponding to the left chamber 3 and right chamber 4 respectively. An oxygenator heating circuit 8, connected to the left chamber 3, is also located on one side of the water tank 1. The left chamber 3 contains a ceramic heating element 9 and a Venturi jet mechanism 10. The Venturi jet mechanism 10 connects to the oxygenator heating circuit. The thermal circuit 8 is connected. A micro turbine pump 11 is installed at one end of the Venturi jet mechanism 10. A heating hose 12 corresponding to the right chamber 4 is provided on one side of the water tank 1. A heating groove 13 is opened on one side of the heating hose 12. A thin film heating belt 14 and a spiral copper tube heat exchanger 15 are provided in the right chamber 4. The spiral copper tube heat exchanger 15 is connected to the heating hose 12. A spare battery 16 is installed on one side of the water tank 1. A power connector 17 is provided on one side of the spare battery 16. A switch 18 is provided on one side of the water tank 1. A temperature control system is provided in the water tank 1. The temperature control system includes dual redundant temperature monitoring and a three-level alarm mechanism.

[0022] Reference Figure 2 In this embodiment, the throat diameter of the Venturi jet mechanism 10 is 6±0.1mm, and the diffusion angle of the Venturi jet mechanism 10 is 12°.

[0023] Reference Figure 3 In this embodiment, the spiral copper tube heat exchanger 15 has a pitch of 10 mm, a tube diameter of 4 mm, and an antibacterial silver coating on its surface.

[0024] The three-level alarm mechanism in this embodiment includes: Level 1: Temperature difference > 1℃ for 10 seconds; Level 2: Temperature difference > 2℃ or pressure fluctuation > 15%; Level 3: Temperature > 42℃ or < 32℃ for 30 seconds.

[0025] Reference Figure 2 In this embodiment, the oxygenator heating circuit 8 includes an outlet pipe connected to the Venturi jet mechanism 10 and a return pipe installed in the left chamber 3. A blue LED halo is provided on the periphery of the outlet pipe, and the outlet pipe has a tapered thread. A Luer locking connector is provided at one end of the return pipe, and a concave-convex positioning keyway is provided on the periphery of the return pipe.

[0026] Reference Figure 3 In this embodiment, the Y-shaped diverter 5 is provided with two diversion regulating valves 19. One end of the diversion regulating valve 19 is slidably engaged with and rotatably engaged with an regulating rod 20. The regulating rod 20 is slidably engaged with the top of the water tank 1.

[0027] Working principle: In use, first connect the power connector 17 to an external power source, then inject water into the water inlet at the top of the Y-shaped distributor 5, so that the Y-shaped distributor 5 can guide the water into the left chamber 3 and the right chamber 4 respectively. Then, connect the oxygenator heating circuit 8 to the external oxygenator, so that the heating hose 12 can wrap around the ECMO extracorporeal circulation tubing. After checking that the connection and preparation are correct, turn on the switch 18 on one side of the water tank 1 and adjust the temperature adjustment button 7. The two temperature display screens 6 will display the temperature of the corresponding left chamber 3 and right chamber 4 respectively. The temperature control system will coordinate the two left chambers 3 and right chambers 4 to achieve precise control of the temperature difference. The spiral copper tube heat exchanger 15 will exchange heat to heat the heating hose 12, so that the heating hose 12 can heat the ECMO extracorporeal circulation tubing. The micro turbo pump 11 will activate the Venturi jet mechanism 10, so that the Venturi jet mechanism 10 can circulate the oxygenator water circuit through the oxygenator heating circuit 8 to control the temperature of the oxygenator.

[0028] Reference Figure 4-5 In another embodiment of this utility model, the intelligent temperature-controlled water tank system includes the following modules: Dual independent control modules: Oxygenator area: PT1000 sensor × 2 + anti-interference filter circuit; Pipeline area: Infrared non-contact temperature measurement module, accuracy ±0.2℃.

[0029] Level 3 security alert: Level 1: Buzzer alarm, temperature difference > 1℃ for 10 seconds; Level 2: Push to mobile device via Bluetooth; Level 3: Automatically cuts off heating and activates backup battery temperature control.

[0030] Left zone oxygenator circuit: 500W ceramic heating element with PID algorithm, response time <15s; The Venturi jet structure has a throat diameter of 6mm and a flow stability error of ≤3%.

[0031] Pediatric fit design: Miniature turbo pump: Flow rate adjustable from 0.5-2L / min, suitable for children with low blood flow needs; Anti-hemolytic flow channel: inner wall roughness Ra≤0.8μm, transition arc R>5mm; Quick-release sterile interface: G3 / 8" tapered thread, pressure resistant 0.4MPa, compatible with neonatal oxygenators, ISO 594-2 Luer locking connector, anti-misconnection design.

[0032] Security protection system: Dual-redundant temperature monitoring: NTC thermistor + infrared sensor; Pressure relief protection: Mechanical spring valve, opening pressure 0.25MPa + electronic pressure gauge, accuracy ±1kPa; Electrical safety: Isolated power supply module, leakage current <10μA + IP67 protection rating.

[0033] In actual use, the system mode can be switched as needed: Oxygenator constant temperature mode: Set the temperature to 38℃, the ceramic heating element starts, and the PID algorithm dynamically adjusts the power. The Venturi structure stabilizes the flow velocity at 0.6 m / s, with the PT1000 sensor providing real-time feedback.

[0034] Pipeline gradient heating mode: The surface temperature of the copper tube gradually increases from 32℃ at the inlet to 42℃ at the outlet, with a temperature difference slope of 0.5℃ / 10cm. The infrared sensor scans the surface temperature distribution of the pipeline every 5 seconds.

[0035] Emergency transfer procedure: When switched to lithium battery power, the system automatically reduces its frequency and consumes less than 80W. When a Level 3 alarm is triggered, the oxygenator zone temperature should be maintained above 36°C.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport, comprising a water tank (1), characterized in that, The water tank (1) is equipped with a partition (2), which separates the water tank (1) into a left chamber (3) and a right chamber (4). A Y-shaped diverter (5) is installed inside the partition (2), and the water inlet at the top of the Y-shaped diverter (5) penetrates the top of the water tank (1). Two temperature display screens (6) and two temperature adjustment buttons (7) are installed on one side of the water tank (1), which correspond to the left chamber (3) and the right chamber (4) respectively. An oxygenator heating circuit (8) connected to the left chamber (3) is installed on one side of the water tank (1). A ceramic heating element (9) and a Venturi jet mechanism (10) are installed inside the left chamber (3). The Venturi jet mechanism (10) is connected to the oxygenator heating circuit (8) connected to the left chamber (3). The oxygenator heating circuit (8) is connected. A micro turbine pump (11) is installed at one end of the Venturi jet mechanism (10). A heating hose (12) corresponding to the right chamber (4) is provided on one side of the water tank (1). A heating groove (13) is opened on one side of the heating hose (12). A thin film heating belt (14) and a spiral copper tube heat exchanger (15) are provided in the right chamber (4). The spiral copper tube heat exchanger (15) is connected to the heating hose (12). A spare battery (16) is installed on one side of the water tank (1). A power connector (17) is provided on one side of the spare battery (16). A switch (18) is provided on one side of the water tank (1). A temperature control system is provided in the water tank (1). The temperature control system includes dual redundant temperature monitoring and a three-level alarm mechanism.

2. The dual-temperature zone intelligent temperature-controlled water tank system for pediatric ECMO transport according to claim 1, characterized in that, The throat diameter of the Venturi jet mechanism (10) is 6±0.1mm, and the diffusion angle of the Venturi jet mechanism (10) is 12°.

3. The dual-temperature zone intelligent temperature-controlled water tank system for pediatric ECMO transport according to claim 1, characterized in that, The spiral copper tube heat exchanger (15) has a pitch of 10 mm, a tube diameter of 4 mm, and an antibacterial silver coating on its surface.

4. The dual-temperature zone intelligent temperature-controlled water tank system for pediatric ECMO transport according to claim 1, characterized in that, The three-level alarm mechanism includes: Level 1: Temperature difference > 1℃ for 10 seconds; Level 2: Temperature difference > 2℃ or pressure fluctuation > 15%; Level 3: Temperature > 42℃ or < 32℃ for 30 seconds.

5. A dual-temperature zone intelligent temperature-controlled water tank system suitable for pediatric ECMO transport according to claim 1, characterized in that, The oxygenator heating circuit (8) includes an outlet pipe connected to the Venturi jet mechanism (10) and a return pipe installed in the left chamber (3). The outlet pipe is provided with a blue LED halo on its periphery. The outlet pipe has a tapered thread. One end of the return pipe is provided with a Luer locking connector. The return pipe is provided with a concave-convex positioning keyway on its periphery.

6. A dual-temperature zone intelligent temperature-controlled water tank system for pediatric ECMO transport according to claim 1, characterized in that, The Y-shaped diverter (5) is provided with two diversion regulating valves (19). One end of the diversion regulating valve (19) is slidably engaged with and rotatably engaged with an regulating rod (20). The regulating rod (20) is slidably engaged with the top of the water tank (1).

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