Ultrasonic treatment instrument

Abstract

The invention discloses an ultrasonic treatment instrument which comprises a power source, a power driving module, an ultrasonic transducer, a control module, a temperature adjusting system and a display module. The ultrasonic transducer generates focused ultrasonic waves, the temperature adjusting system can adjust the temperature of the sound transmission medium in time according to a temperature signal of the temperature sensor, it is ensured that the temperature of the treatment contact part of the ultrasonic transducer is stable, the skin of a patient is not hurt, and safe and reliable treatment is ensured.

Description

Technical Field

[0001] The present invention belongs to the field of ultrasonic therapy and relates to an ultrasonic therapy instrument. Background Art

[0002] Ultrasound is a mechanical wave with tissue penetration ability and focusing ability, and it has been used for treating diseases for decades. Initially, due to insufficient attention to ultrasonic therapy and simple instruments, ultrasound was mainly used for physical therapy or adjuvant therapy. The advent of high-intensity focused ultrasound (HIFU) ablation technology for tumors has made ultrasonic therapy technology one of the main clinical treatment means.

[0003] Ultrasonic therapy technology has been widely applied in multiple medical fields, such as orthopedics, gynecology, liver, pancreas, rehabilitation, etc. In orthopedics, ultrasound can be used for ablation treatment of bone tumors. In gynecology, ultrasound can be used for the treatment of uterine fibroids. In the aspect of the liver, ultrasonic therapy technology can be used for the treatment of liver cancer. In the aspect of the pancreas, ultrasonic therapy technology can be used for the treatment of pancreatic cancer. In rehabilitation, ultrasound is used for the treatment of soft tissue injury diseases and arthritis.

[0004] According to the performance and clinical application purposes of ultrasonic therapy instruments or devices, they can be divided into high-intensity focused ultrasound (HIFU) and low-intensity focused ultrasound.

[0005] During the process of treating diseases with ultrasonic therapy instruments, since ultrasound will produce refraction and reflection between different media during transmission, a heating phenomenon will occur. At the same time, the stability and reliability of electronic components also affect the stability of ultrasonic output. All these will cause the treatment site to heat up, and even damage the skin and subcutaneous tissues. Also, during treatment in cold weather, the treatment site is cold. Since the treatment site is the ultrasonic channel and cannot be warmed by covering, the treatment site gets cold, affecting the comfort of the treatment process and the treatment effect. Summary of the Invention

[0006] The present invention provides an ultrasonic therapy instrument aiming at the discomfort of the temperature of the treatment site when the current ultrasonic therapy instrument treats diseases.

[0007] The present invention discloses an ultrasonic therapy instrument, which includes a power supply, a power drive module, a control module, an ultrasonic transducer, a temperature regulation system, and a display module. The ultrasonic transducer generates focused ultrasound, and the temperature regulation system can timely adjust the temperature of the sound-transmitting medium according to the temperature signal of the temperature sensor, ensuring the stability of the temperature at the treatment contact part of the ultrasonic transducer, not causing harm to the patient's skin, and ensuring the safety and reliability of the treatment.

[0008] The power supply of this instrument provides power for the power drive module, the control module, the ultrasonic transducer, the temperature regulation system, and the display module.

[0009] The power drive module of this instrument is a device that generates excitation signals and provides ultrasonic energy to the ultrasonic transducer. The excitation signals it generates are power-amplified and then impedance-matched with the ultrasonic transducer through a matching circuit, thereby driving the ultrasonic transducer to work.

[0010] The control module of this instrument controls the power drive module and controls the ultrasonic transducer through the power drive module, controlling the maximum output power, output power of each gear, output frequency, output time, etc. of the ultrasonic transducer.

[0011] The control module of this instrument also controls the temperature regulation system. The temperature input by the temperature sensor is compared with the preset temperature in real time. If the former temperature is high, the temperature regulation system is started to operate for refrigeration; otherwise, the temperature regulation system is started to operate for heating.

[0012] The control module of this instrument preferably adopts a computer control system, which includes a computer main board, a control circuit, a communication circuit, an operating system, application software, etc., and can efficiently and precisely control the power drive module and the temperature regulation system.

[0013] The ultrasonic transducer of this instrument converts electrical energy into ultrasonic waves.

[0014] The ultrasonic transducer of this instrument is composed of a wafer, a sound-transmitting medium, a sound-transmitting membrane, and a housing. The wafer is made of piezoelectric ceramics. The sound-transmitting medium can be a liquid substance, a solid substance, or a gel, and must have the performance of passing ultrasonic waves and heat conduction performance. The sound-transmitting membrane can be made of materials such as plastics, resins, and silica gels, and must have the performance of passing ultrasonic waves.

[0015] The temperature regulation system of this instrument consists of an internal heat exchanger I, an internal heat exchanger II, an external heat exchanger, a medium circulator, and a temperature sensor.

[0016] There are two principles for the temperature regulation system of this instrument.

[0017] The first principle of the temperature regulation system of this instrument: The medium circulator is equivalent to an air-conditioning compressor, the internal heat exchanger I and the internal heat exchanger II are equivalent to the indoor units of an air conditioner, and the external heat exchanger is equivalent to the outdoor unit of an air conditioner. Refrigeration or heating is achieved through the state change of the refrigerant.

[0018] During the refrigeration operation, the low-temperature and low-pressure refrigerant gas is sucked in by the medium circulator and pressurized into a high-temperature and high-pressure refrigerant gas. The high-temperature and high-pressure refrigerant gas releases heat in the external heat exchanger and becomes a medium-temperature and high-pressure liquid. The medium-temperature and high-pressure liquid is then throttled and depressurized by a throttling component and becomes a low-temperature and low-pressure liquid. The low-temperature and low-pressure liquid refrigerant absorbs the heat of the sound-transmitting medium in the internal heat exchanger I and the internal heat exchanger II, evaporates, and becomes a low-temperature and low-pressure gas, and then enters the medium circulator again for compression, and so on in a cycle.

[0019] During the heating operation, the medium circulator compresses the gaseous refrigerant into a high-temperature and high-pressure gas. This gas enters the internal heat exchanger I and the internal heat exchanger II, releases heat, and heats the sound-transmitting medium. After the gaseous refrigerant releases heat, it becomes a liquid. After being depressurized by a throttling device, it becomes a low-temperature and low-pressure liquid refrigerant and enters the external heat exchanger. After absorbing the heat from the outside, it becomes a gas and is then sucked in by the medium circulator for the next cycle.

[0020] Principle 2 of the temperature regulation system of this instrument: The medium circulator is equivalent to a water pump. The external heat exchanger consists of a cold water tank, a hot water tank, and a water valve. There are water channels in both the internal heat exchanger I and the internal heat exchanger II. Refrigeration is achieved by connecting the water in the cold water tank, and heating is achieved by connecting the water in the hot water tank.

[0021] During the refrigeration operation, the medium circulator connects the cold water in the external heat exchanger to the water channels of the internal heat exchanger I and the internal heat exchanger II to form a cycle, and dissipates heat through the radiating fins of the cold water tank of the external heat exchanger. The cold water takes out the heat of the sound-transmitting medium through the internal heat exchanger I and the internal heat exchanger II, playing a refrigeration role.

[0022] During the heating operation, the medium circulator connects the hot water in the external heat exchanger to the water channels of the internal heat exchanger I and the internal heat exchanger II to form a cycle. The heat of the hot water in the water channels is transferred to the sound-transmitting medium through the internal heat exchanger I and the internal heat exchanger II, playing a heating role.

[0023] The temperature sensor is placed inside the ultrasonic transducer, close to the center of the sound-transmitting membrane, and can accurately judge the temperature of the treatment site.

[0024] The internal heat exchanger I is in the peripheral direction of the sound-transmitting medium, and the internal heat exchanger II is in the inner hole of the sound-transmitting medium. Neither is on the transmission path of the focused ultrasonic wave, which does not affect the propagation of the ultrasonic wave and is conducive to heat exchange with the sound-transmitting medium at the same time.

[0025] The display module of this instrument can accurately display parameters such as the maximum output power, the output power of each gear, the output frequency, and the output time. It can also display the real-time temperature of the treatment site and the operating status of the temperature regulation system, and can select various parameters. Description of the Drawings

[0026] Figure 1 Schematic diagram of the ultrasonic treatment instrument according to Embodiment 1 of the present invention

[0027] Figure 2 Schematic diagram of the ultrasonic treatment instrument according to Embodiment 2 of the present invention

[0028] Figure 3 Principle block diagram of the ultrasonic treatment instrument of the present invention

[0029] Figure 4 Principle block diagram of the temperature regulation system of the ultrasonic treatment instrument of the present invention

[0030] In the embodiment, the description of the reference numerals includes:

[0031] 1 - Power supply, 2 - Power drive module, 3 - Control module, 4 - Ultrasonic transducer, 5 - Temperature regulation system, 6 - Display module

[0032] 41 - Chip, 42 - Sound transmission medium, 43 - Sound transmission membrane, 44 - Outer shell

[0033] 51 - Inner heat exchanger 1, 52 - Inner heat exchanger 2, 53 - Outer heat exchanger, 54 - Medium circulator, 55 - Temperature sensor, 531 - Cold water tank, 532 - Hot water tank, 533 - Water valve Specific implementation manners

[0034] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific implementation manners.

[0035] Embodiment 1:

[0036] The ultrasonic treatment instrument of this Embodiment 1 includes a power supply 1, a power drive module 2, a control module 3, an ultrasonic transducer 4, a temperature regulation system 5, and a display module 6. The ultrasonic transducer 4 generates focused ultrasonic waves. The temperature regulation system 5 can, according to the temperature signal of the temperature sensor 55, timely adjust the temperature of the sound transmission medium 42 to ensure that the temperature of the treatment contact part of the ultrasonic transducer 4 is stable, does not cause harm to the patient's skin, and ensures the safety and reliability of the treatment.

[0037] The power supply 1 provides power for the power drive module 2, the control module 3, the ultrasonic transducer 4, the temperature regulation system 5, and the display module 6.

[0038] The power supply 1 is preferably a medical switching power supply, which can meet the safety and electromagnetic compatibility requirements of medical instruments.

[0039] The power drive module 2 is a device that generates an excitation signal and provides ultrasonic energy to the ultrasonic transducer 4. The excitation signal it generates is amplified in power and then impedance - matched with the ultrasonic transducer 4 through a matching circuit, so as to drive the ultrasonic transducer 4 to work.

[0040] The control module 3 controls the power drive module 2 and controls the ultrasonic transducer 4 through the power drive module 2, controlling the maximum output power, the output power of each gear, the output frequency, the output time, etc. of the ultrasonic transducer 4.

[0041] The control module 3 also controls the temperature regulation system 5. The temperature input by the temperature sensor 55 is compared with the preset temperature in real time. If the former temperature is high, the temperature regulation system 5 is started to operate refrigeration, and vice versa, the temperature regulation system 5 is started to operate heating.

[0042] The control module 3 is preferably a computer control system, which includes a computer main board, a control circuit, a communication circuit, an operating system, application software, etc., and can efficiently and precisely control the power drive module 2 and the temperature regulation system 5.

[0043] The ultrasonic transducer 4 converts electrical energy into ultrasonic waves.

[0044] The ultrasonic transducer 4 is composed of a wafer 41, a sound transmission medium 42, a sound transmission membrane 43, and a housing 44. The wafer 41 is made of piezoelectric ceramics. The sound transmission medium 42 can be a liquid substance, a solid substance, or a gel, and must have the performance of passing ultrasonic waves and heat conduction performance. The sound transmission membrane 43 can be made of materials such as plastics, resins, and silica gels, and must have the performance of passing ultrasonic waves.

[0045] The temperature regulation system 5 of this embodiment 1 is composed of an internal heat exchanger I 51, an internal heat exchanger II 52, an external heat exchanger 53, a medium circulator 54, and a temperature sensor 55.

[0046] The principle of the temperature regulation system 5 of this embodiment 1 is that the medium circulator 54 is equivalent to an air conditioner compressor, the internal heat exchanger I 51 and the internal heat exchanger II 52 are equivalent to the indoor units of an air conditioner, and the external heat exchanger 53 is equivalent to the outdoor unit of an air conditioner, and refrigeration or heating is achieved through the state change of the refrigerant.

[0047] During refrigeration operation, the low-temperature and low-pressure refrigerant gas is inhaled by the medium circulator 54 and pressurized into a high-temperature and high-pressure refrigerant gas. The high-temperature and high-pressure refrigerant gas releases heat in the external heat exchanger 53 and becomes a medium-temperature and high-pressure liquid. The medium-temperature and high-pressure liquid is then throttled and depressurized by a throttling component and becomes a low-temperature and low-pressure liquid. The low-temperature and low-pressure liquid refrigerant absorbs the heat of the sound transmission medium 42 in the internal heat exchanger I 51 and the internal heat exchanger II 52 and evaporates into a low-temperature and low-pressure gas, and then enters the medium circulator 54 again for compression, and so on in a cycle.

[0048] During the heating operation, the medium circulator 54 compresses the gaseous refrigerant into a high-temperature and high-pressure gas. This gas enters the first internal heat exchanger 51 and the second internal heat exchanger 52, releases heat, and heats the acoustic medium 42. After releasing heat, the gaseous refrigerant becomes liquid. After passing through the throttling device to reduce the pressure, it becomes a low-temperature and low-pressure liquid refrigerant and enters the external heat exchanger 53. After absorbing the external heat, it becomes gaseous and is then sucked into the medium circulator 54 for the next cycle.

[0049] The temperature sensor 55 is placed inside the ultrasonic transducer 4, close to the center of the acoustic membrane 43, and can accurately judge the temperature of the treatment site.

[0050] The first internal heat exchanger 51 is in the outer peripheral direction of the acoustic medium, and the second internal heat exchanger 52 is in the inner hole of the acoustic medium. Neither of them is on the transmission path of the focused ultrasonic wave, which does not affect the propagation of the ultrasonic wave and is conducive to the heat exchange with the acoustic medium 42 at the same time.

[0051] The display module 6 of this instrument can accurately display parameters such as the maximum output power, the output power of each gear, the output frequency, and the output time. It can also display the real-time temperature of the treatment site and the operating status of the temperature regulation system 5, and can select various parameters.

[0052] Embodiment 2:

[0053] The composition of this Embodiment 2 is the same as that of Embodiment 1. Among them, the power supply 1, the power drive module 2, the control module 3, the ultrasonic transducer 4, and the display module 6 are the same as those in Embodiment 1 and will not be described here. The difference lies in the temperature regulation system 5.

[0054] The temperature regulation system 5 of this Embodiment 2 is composed of the first internal heat exchanger 51, the second internal heat exchanger 52, the external heat exchanger 53, the medium circulator 54, and the temperature sensor 55.

[0055] For the principle of the temperature regulation system 5 of this Embodiment 2, the medium circulator 54 is equivalent to a water pump. The external heat exchanger 53 is composed of a cold water tank 531, a hot water tank 532, and a water valve 533. There are water channels in both the first internal heat exchanger 51 and the second internal heat exchanger 52. Refrigeration is achieved by connecting the water in the cold water tank 531, and heating is achieved by connecting the water in the hot water tank 532.

[0056] During the refrigeration operation, the medium circulator 54 connects the cold water in the cold water tank 531 of the external heat exchanger 53 to the water channels of the first internal heat exchanger 51 and the second internal heat exchanger 52 to form a cycle, and dissipates heat through the radiating fins of the cold water tank 531 of the external heat exchanger 53. The cold water takes out the heat of the acoustic medium 42 through the first internal heat exchanger 51 and the second internal heat exchanger 52, playing a refrigeration role.

[0057] During the heating operation, the medium circulator 54 connects the hot water in the hot water tank 532 of the external heat exchanger 53 to the water channels of the first internal heat exchanger 51 and the second internal heat exchanger 52 to form a cycle. The heat of the hot water in the water channels is transferred to the acoustic medium 42 through the first internal heat exchanger 51 and the second internal heat exchanger 52 to play a heating role.

[0058] The temperature sensor 55 is placed inside the ultrasonic transducer 4, close to the center of the acoustic membrane 43, and can accurately judge the temperature of the treatment site.

[0059] The first internal heat exchanger 51 is in the outer peripheral direction of the acoustic medium 42, and the second internal heat exchanger 52 is in the inner hole of the acoustic medium 42. Neither of them is on the transmission path of the focused ultrasonic wave, which does not affect the propagation of the ultrasonic wave and is conducive to the heat exchange with the acoustic medium 42 at the same time.

Claims

1. An ultrasonic treatment instrument, comprising a power supply 1, a power driving module 2, a control module 3, an ultrasonic transducer 4, a temperature adjustment system 5 and a display module 6; the ultrasonic transducer 4 generates focused ultrasonic waves, and the temperature adjustment system 5 can timely adjust the temperature of the sound-transmitting medium 42 according to the temperature signal of the temperature sensor 55, so as to ensure that the temperature of the treatment contact part of the ultrasonic transducer 4 is stable, without causing damage to the patient's skin, and ensure that the treatment is safe and reliable.

2. The ultrasonic treatment instrument according to claim 1, characterized in that The power supply 1 provides power for the power driving module 2 , the control module 3 , the ultrasonic transducer 4 , the temperature regulating system 5 , and the display module 6 .

3. The ultrasonic treatment instrument according to claim 1, characterized in that The power driving module 2 is a device that generates an excitation signal and provides ultrasonic energy to the ultrasonic transducer 4. The excitation signal generated by it is power amplified and then impedance matched with the ultrasonic transducer 4 through a matching circuit, thereby driving the ultrasonic transducer 4 to work.

4. The ultrasonic treatment instrument according to claim 1, characterized in that The control module 3 controls the power driving module 2, and controls the ultrasonic transducer 4 through the power driving module 2, controls the maximum output power of the ultrasonic transducer 4, the output power of each gear, the output frequency, the output time, etc.; the control module 3 also controls the temperature adjustment system 5, and the temperature input by the temperature sensor 55 is compared with the pre-set temperature in real time. If the former temperature is high, the temperature adjustment system 5 is started for cooling operation, otherwise, the temperature adjustment system 5 is started for heating operation; the control module 3 is preferably a computer control system, which includes a computer motherboard, a control circuit, a communication circuit, an operating system, application software, etc., and can efficiently and accurately control the power driving module 2 and the temperature adjustment system 5.

5. The ultrasonic treatment instrument according to claim 1, characterized in that The ultrasonic transducer 4 is composed of a chip 41, a sound-transmitting medium 42, a sound-transmitting membrane 43, and a shell 44. The chip 41 is made of piezoelectric ceramics; the sound-transmitting medium 42 can be a liquid substance, a solid substance, or a gel, and must have the ability to pass ultrasonic waves and thermal conductivity. The sound-transmitting membrane 43 can be made of plastic, resin, silicone, or other materials, and must have the ability to pass ultrasonic waves.

6. The ultrasonic treatment apparatus according to claim 1, characterized in that The temperature adjustment system 5 is composed of an internal heat exchanger 1 51 , an internal heat exchanger 2 52 , an external heat exchanger 53 , a medium circulator 54 , and a temperature sensor 55 .

7. The temperature control system 5 according to claim 6, characterized in that The medium circulator 54 is equivalent to the air-conditioning compressor, the internal heat exchanger 51 and the internal heat exchanger 52 are equivalent to the indoor unit of the air-conditioning, and the external heat exchanger 53 is equivalent to the outdoor unit of the air-conditioning, and cooling or heating is achieved by the change of the state of the refrigerant; during cooling operation, the low-temperature and low-pressure refrigerant gas is sucked into the medium circulator 54 and pressurized to become a high-temperature and high-pressure refrigerant gas, and the high-temperature and high-pressure refrigerant gas releases heat in the external heat exchanger 53 to become a medium-temperature and high-pressure liquid, and the medium-temperature and high-pressure liquid is throttled and reduced in pressure by the throttling component to become a low-temperature and low-pressure liquid, and the low-temperature and low-pressure liquid refrigerant absorbs the heat of the sound-transmitting medium 42 in the internal heat exchanger 51 and the internal heat exchanger 52 and evaporates to become a low-temperature and low-pressure gas, and then enters the medium circulator 54 for compression again, and so on. In the system During thermal operation, the medium circulator 54 compresses the gaseous refrigerant into a high-temperature and high-pressure gas, which enters the internal heat exchanger 1 51 and the internal heat exchanger 2 52 to release heat and heat the sound-transmitting medium 42; the gaseous refrigerant becomes liquid after releasing heat, and after being reduced in pressure by the throttling device, it becomes a low-temperature and low-pressure liquid refrigerant and enters the external heat exchanger 53, absorbs external heat and becomes gaseous, and is then sucked into the medium circulator 54 for the next cycle; the temperature sensor 55 is placed inside the ultrasonic transducer 4, close to the center of the sound-transmitting membrane 43, and can accurately judge the temperature of the treatment site; the internal heat exchanger 1 51 is on the outer peripheral direction of the sound-transmitting medium, and the internal heat exchanger 2 52 is in the inner hole of the sound-transmitting medium, both of which are not on the transmission path of the focused ultrasonic wave, do not affect the propagation of the ultrasonic wave, and are conducive to heat exchange with the ultrasonic medium.

8. The temperature adjustment system 5 according to claim 6, characterized in that: The medium circulator 54 is equivalent to a water pump. The external heat exchanger 53 is composed of a cold water tank 531, a hot water tank 532, and a water valve 533. There are water channels in the internal heat exchanger 1 51 and the internal heat exchanger 2 52. Refrigeration is achieved by connecting the water in the cold water tank 531, and heating is achieved by connecting the water in the hot water tank 532. During refrigeration operation, the medium circulator 54 connects the cold water in the cold water tank 531 of the external heat exchanger 53 to the water channels of the internal heat exchanger 1 51 and the internal heat exchanger 2 52 to form a cycle, and dissipates heat through the heat sink of the cold water tank 531 of the external heat exchanger 53. The cold water takes out the heat of the sound-permeable medium 42 through the internal heat exchanger 1 51 and the internal heat exchanger 2 52 to play a cooling role. ; During the heating operation, the medium circulator 54 connects the hot water in the hot water tank 532 of the external heat exchanger 53 to the water channels of the internal heat exchanger 1 51 and the internal heat exchanger 2 52 to form a circulation. The heat of the hot water in the water channel is transferred to the sound-transmitting medium 42 through the internal heat exchanger 1 51 and the internal heat exchanger 2 52 to play a heating role; the temperature sensor 55 is placed inside the ultrasonic transducer 4, close to the center of the sound-transmitting membrane 43, and can accurately judge the temperature of the treatment site; the internal heat exchanger 1 51 is on the peripheral direction of the sound-transmitting medium, and the internal heat exchanger 2 52 is in the inner hole of the sound-transmitting medium. Both are not on the transmission path of the focused ultrasonic wave, do not affect the propagation of the ultrasonic wave, and are conducive to heat exchange with the ultrasonic medium.

9. The ultrasonic treatment apparatus according to claim 1, characterized in that The display module 6 can accurately display the maximum output power, the output power of each gear, the output frequency, the output time and other parameters, and can also display the real-time temperature of the treatment part, the operating status of the temperature control system 5, and can select various parameters.

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