Liquid cooling heat dissipation system of focused ultrasound therapeutic instrument

Abstract

The invention discloses a liquid cooling heat dissipation system of a focused ultrasound therapeutic instrument. The system comprises a cooling water tank, a liquid level monitoring unit, a water supply and drainage unit, a flow monitoring unit, a cooling liquid path switching unit, at least two groups of cooling liquid path units and an MCU, the liquid level monitoring unit is used for monitoringthe liquid level height of the cooling liquid; the flow monitoring unit is used for monitoring the flow of the cooling liquid; the cooling liquid switching unit is used for switching the two groups of cooling liquid path units; wherein the water supply and drainage unit and the flow monitoring unit are respectively connected with the cooling water tank, the cooling liquid path switching unit is respectively connected with the inlet end of the cooling liquid path unit and the flow monitoring unit, the outlet end of the cooling liquid path unit is connected with the cooling water tank, and theliquid level monitoring unit, the water supply and drainage unit, the flow monitoring unit and the cooling liquid path switching unit are respectively connected with the MCU. Compared with the prior art, the working intensity of a user can be reduced, and the reliability and the operation safety of the liquid cooling heat dissipation system are improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a liquid cooling and heat dissipation system for a focused ultrasonic therapeutic instrument. Background technique [0002] The focused ultrasound therapy instrument is used to treat human superficial tissue lesions. The ultrasonic energy with a center frequency of 10MHz is focused on a point through a concave transducer, and the combined effects of mechanical effect, thermal effect and cavitation effect of ultrasonic waves are used to kill the activity of diseased tissue cells. , to achieve the clinical purpose of treatment. [0003] In order to achieve precise positioning treatment of small organs and small lesions, the diameter of the ultrasonic transducer is required not to be too large, generally limited to 8-12mm in diameter, and the maximum output sound power is ≥5W. In the treatment work, ceramic transducers with small areas A large amount of heat energy will be ...

AI Technical Summary

Problems solved by technology

[0006] 1. The coolant in the water tank needs to be replaced regularly. The original technology without program-controlled water change device needs to manually pour out the water in the water tank and then fill it with a container, which causes the following problems:

[0007] 1.1. The operation process of changing water is cumbersome, which increases the workload of medical staff, and the process of changing water is prone to secondary pollution;

[0008] 1.2. The water tank must be exposed outside so that the liquid level can be observed, and it is easily affected by the outside world, such as light, microbial growth, etc., which will cause water quality to deteriorate;

[0009] 1.3. Human factors forget to replace it regularly, causing the instrument to continue to run after the coolant deteriorates

[0010] 2. There is no real-time monitoring of coolant flow, and the protection function of failure shutdown. When the circulation pump fails or the pipeline is blocked, the coolant circulation is not smooth and the heat dissipation is affected. If the equipment continues to run, it will damage the equipment. In severe cases, it may cause burns to the patient's body

[0011] 3. After the instrument is turned off, the coolant in the treatment head pipeline cannot be removed. When replacing the disposable sterilized treatment headgear, the coolant in the pipeline will seep out and contaminate the sterilized headgear.

[0012] 4. The cooling water tank does not have the function of real-time detection and prompting of the liquid level. It is necessary to manually observe the liquid level and add it manually when the water is short of water. Therefore, it is possible to continue the treatment work due to human negligence and cause poor heat dissipation and damage the instrument.

[0013] 5. There is no cooling liquid circuit switching function. When the instrument is equipped with multiple treatment heads for different purposes and needs to be replaced, the connector can only be replaced manually, which will increase the workload of medical staff and easily cause damage to the connector and shorten the service life of the instrument.

[0014] In summary, the focused ultrasonic liquid cooling system in the prior art does not have the function of automatic water change under program control, the function of monitoring and prompting the liquid level of the water tank, the function of automatic drainage without changing the headgear, the function of monitoring and prompting the state of the liquid circuit circulation, and cannot realize Multi-treatment head circulating fluid circuit automatic switching

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