WO2024022542A2 - 医疗装置及其控制方法、ivl系统及能量调节系统 - Google Patents

医疗装置及其控制方法、ivl系统及能量调节系统 Download PDF

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Publication number
WO2024022542A2
WO2024022542A2 PCT/CN2023/121410 CN2023121410W WO2024022542A2 WO 2024022542 A2 WO2024022542 A2 WO 2024022542A2 CN 2023121410 W CN2023121410 W CN 2023121410W WO 2024022542 A2 WO2024022542 A2 WO 2024022542A2
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WIPO (PCT)
Prior art keywords
energy
pulse
shock wave
unit
voltage
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PCT/CN2023/121410
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English (en)
French (fr)
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WO2024022542A3 (zh
Inventor
黄忠义
朱笑蒙
李治强
谢建
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鑫易舟(上海)医疗器械有限公司
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Publication of WO2024022542A2 publication Critical patent/WO2024022542A2/zh
Publication of WO2024022542A3 publication Critical patent/WO2024022542A3/zh

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for

Definitions

  • the present invention relates to the technical field of medical devices, and in particular, to a medical device and its control method, IVL system, and energy regulation system.
  • Intravascular lithotripsy is a new technology for the clinical treatment of arterial calcified lesions.
  • the shock wave pulse power supply outputs intermittent high-voltage excitation high-voltage electric pulses, which act on the micro-high-voltage discharge device in the balloon.
  • the ball The electrodes built into the balloon discharge at high voltage in a short period of time, causing part of the mixed solution of normal saline and contrast agent in the balloon to be instantly vaporized, generating non-focused, circumferential pulse sound pressure waves.
  • Solid calcified diseased tissue is the target tissue for shock waves, and its density is much greater than that of normal tissue.
  • Acoustic pressure waves mainly selectively act on solid calcified substances that cause arterial vascular lesions, while It penetrates soft tissues such as blood vessels and muscles of the human body, which are less dense than normal saline, with almost no damage without being absorbed, allowing the calcified material in the target tissue to rupture and loosen the calcified material in the target tissue through the impact of the shock wave.
  • the existing IVL system can only output pulse waves with fixed pulse width and fixed voltage amplitude, that is, it outputs pulse waves with fixed energy.
  • the energy is too high, which can cause potential damage to the lining of blood vessels and affect postoperative recovery. If the energy is too low, the fragmentation effect of calcified lesions will not be obvious, which will affect the therapeutic effect.
  • adjusting the pulse amplitude In high-voltage narrow pulse applications, there are generally two ways to adjust the energy of the pulse: adjusting the pulse amplitude and adjusting the pulse width. 1. Adjust the pulse amplitude: When the shock wave balloon structure is fixed, the higher the pulse amplitude, the greater the current that passes through, and the corresponding selection range of high-current and high-voltage power devices becomes narrower, and there are no suitable devices to choose from.
  • Pulse width adjustment The appropriate shock wave pulse width range is about 0.3us ⁇ 2us, and the time is very short. If continuous adjustment is performed within this time range, the speed of most logic and analog devices cannot be reached, and it is difficult to implement the program and algorithm. , that is, it is difficult for the control chip to accurately adjust the pulse width within a suitable shock wave pulse width range.
  • the present invention provides a medical device and its control method, IVL system and energy adjustment system to realize pulse shock waves with adjustable output energy, so as to avoid damage or impact caused by high or low shock wave energy acting on target tissues. .
  • a medical device includes:
  • the energy regulating device includes an electrical pulse generating unit, a control unit and a regulating component, the regulating component is connected to the control unit, the control unit is connected to the control end of the electrical pulse generating unit, and the output end of the electrical pulse generating unit is connected to the electrode pair;
  • the energy adjustment device is configured to respond to the energy adjustment demand of the balloon in the insertion state and/or removal state, and the adjustment component sends an energy adjustment signal according to the energy adjustment demand for output to the control unit, and the control unit responds to the received energy.
  • the adjustment signal controls the pulse width and/or pulse amplitude of the shock wave emitted by the electric pulse generating unit,
  • the electrode pair is arranged in the balloon.
  • the high-voltage electric pulse output by the energy adjustment device generates shock waves in the balloon through the electrode pair and acts on the target tissue.
  • control unit is configured to adjust the electrical pulse generating unit to emit a shock wave with a pulse amplitude that satisfies the preset amplitude interval according to the voltage value of the electrical pulse generating unit and the target voltage amplitude corresponding to the energy adjustment signal.
  • the target voltage amplitude corresponding to the signal adjusts the pulse amplitude emitted by the electrical pulse generating unit to make it equal to or close to the target voltage amplitude, or to maintain the error range between the pulse amplitude and the target pulse amplitude within a certain range. Within, preferably, such as ⁇ 5%, etc.
  • the adjustment component adjusts the target voltage amplitude according to the target voltage amplitude and the current voltage.
  • the difference in value sends an energy adjustment signal
  • the control unit is used to receive the energy adjustment signal to adjust the electric pulse generating unit to send out a high-voltage electric pulse with a pulse amplitude that meets the preset amplitude range to act on the electrode pair, in the balloon A shock wave is generated to act on the target tissue, wherein the amplitude of the preset amplitude range at least includes the target voltage amplitude.
  • control unit is configured to determine the effective shock wave duration that has been generated based on the current response delay duration and current collection duration of the current signal of the electrical pulse generating unit, and the duration of the target pulse width corresponding to the energy adjustment signal, Determine the duration of the pulse output of the electrical pulse generating unit, and issue a pulse instruction to the electrical pulse generating unit according to the calculated duration of the pulse output.
  • the control unit uses the pulse instruction to adjust the electrical pulse generating unit to send out pulses that meet the preset pulse width range.
  • the medical device further includes a detection unit, the first end of the detection unit is connected to the detection end of the electrical pulse generation unit, the second end of the detection unit is connected to the control unit, and the detection unit is configured to collect the current electrical pulse generation unit.
  • the control unit is used to receive the current signal and obtain the shock wave occurrence time based on the current signal.
  • the electric pulse generating unit is adjusted to emit high-voltage electric pulses with a pulse amplitude that meets the preset amplitude interval range.
  • the high-voltage electric pulse with the pulse amplitude corresponding to the target energy value includes: when the pulse amplitude corresponding to the voltage value of the electric pulse generating unit does not meet the target voltage amplitude corresponding to the energy adjustment signal, the adjustment component adjusts the pulse amplitude according to the target voltage amplitude. The difference between the current voltage value and the current voltage value sends out an energy adjustment signal.
  • the control unit is used to receive the energy adjustment signal to adjust the electric pulse generating unit to send out a high-voltage electric pulse with a pulse amplitude that meets the preset amplitude range, acting on the electrode pair.
  • a shock wave is generated within the balloon that acts on the target tissue.
  • adjusting the electrical pulse generating unit through the pulse command to send out high-voltage electrical pulses with a pulse width that meets the preset pulse width interval range includes: collecting the current signal of the electrical pulse generating unit, when the current value of the electrical pulse generating unit is greater than the preset When setting the current threshold, determine the shock wave duration threshold corresponding to the current signal.
  • the duration threshold includes the current collection duration and the current response delay duration;
  • the control unit controls the electrical pulse generating unit to issue a pulse command, and adjusts the electrical pulse generating unit to issue a pulse that satisfies the preset pulse width interval.
  • a wide high-voltage electrical pulse acts on the electrode pair, generating a shock wave in the balloon and acting on the target tissue.
  • the preset difference value includes a preset difference range, and/or the preset difference value includes a preset ratio range.
  • control unit is configured to, when the detection unit collects the current signal, cut off the power supply of the electrical pulse generating unit according to the pulse width adjustment requirement corresponding to the energy adjustment requirement set by the adjustment component.
  • the pulse signal generated by the pulse generating unit is configured to, when the detection unit collects the current signal, cut off the power supply of the electrical pulse generating unit according to the pulse width adjustment requirement corresponding to the energy adjustment requirement set by the adjustment component.
  • control unit includes at least one of MCU, DSP, and FPGA; and/or the medical device further includes an inverter boost unit and a power supply unit, and the power supply unit passes the input of the inverter boost unit and the electrical pulse generating unit. terminal connection, the inverter boost unit is used to increase the low voltage output by the power supply unit to high voltage, and the voltage of the pulse output by the electric pulse generating unit is greater than 700V.
  • the device also includes an inverter boost unit, the output end of the inverter boost unit is electrically connected to the input end of the electrical pulse generating unit, the control unit is electrically connected to the control end of the inverter boost unit, and the control unit is used to When the pulse amplitude needs to be adjusted, the inverter boost unit is controlled to adjust the pulse amplitude.
  • control unit is configured to cut off the pulse signal generated by the electrical pulse generating unit according to the pulse width requirement or energy adjustment requirement corresponding to the target energy shock wave set by the adjusting component when the detection unit collects the current signal.
  • the adjustment component includes at least one of a touch screen, a button, a potentiometer, and an encoder; or the medical device further includes a handle and a host, and the adjustment component includes at least one of a touch screen, a button, a potentiometer, and an encoder,
  • the adjusting component is set on the handle or the main unit;
  • the keys include an energy increase key and an energy decrease key.
  • the energy increase key or the energy decrease key realizes adjustment.
  • the medical device includes a voltage dividing unit, one end of the voltage dividing unit is electrically connected to the output end of the electric pulse generating unit, and the other end of the voltage dividing unit serves as an output end and is connected to the electrode pair provided in the balloon for output.
  • the pulse width and/or pulse amplitude of the balloon in the continuous breakdown state after partial pressure and/or current limiting enable the balloon to receive low-energy shock waves in the continuous breakdown state.
  • a control method for a medical device which is used to adjust the shock wave energy generated by a pair of electrodes built into a balloon under the excitation of a high-voltage electric pulse output by an electric pulse generating unit.
  • the control method includes:
  • the regulating component is used to send out the energy regulating signal
  • the control unit receives the energy adjustment signal and adjusts the pulse width and/or pulse amplitude of the high-voltage electric pulse emitted by the electric pulse generating unit according to the energy adjustment signal;
  • the electrode pair controls the high-voltage electric pulse emitted by the electric pulse generating unit to generate a shock wave in the balloon, and the shock wave acts on the target tissue.
  • the method further includes:
  • the step of sending the energy adjustment signal by the adjusting component it may also include:
  • the step of adjusting the pulse width and/or pulse amplitude of the shock wave emitted by the electrical pulse generating unit according to the energy adjustment signal includes:
  • the pulse width adjusted according to the first ratio and the pulse amplitude adjusted according to the second ratio the energy of the high-voltage electric pulse emitted is equal to the target energy value.
  • the energy value of the pulse width adjusted according to the first ratio and the energy value of the pulse amplitude adjusted according to the second ratio can both act on the electrode pair built in the balloon to generate a shock wave that meets the target energy value.
  • an IVL system including a balloon. Under the action of high-voltage electric pulses, the balloon is capable of breakdown discharge and generates shock waves that act on the electrode pairs built into the balloon.
  • An energy adjustment device is also provided, which responds to the energy adjustment requirements of the balloon in the insertion state and/or removal state, and the energy adjustment device includes an electrical pulse generation unit, a control unit and an adjustment component;
  • the adjusting component is configured to obtain the pulse width and/or pulse amplitude of the high-voltage electric pulse emitted by the electric pulse generating unit according to the energy adjustment demand and adjusted by the control unit.
  • the high-voltage electric pulse acts on the electrode pair, in the ball.
  • a shock wave is generated within the capsule and acts on the target tissue.
  • the IVL system also includes: a detection unit, the first end of the detection unit is connected to the detection end of the electrical pulse generation unit, the second end of the detection unit is connected to the control unit, the detection unit is used to collect the current of the electrical pulse generation unit signal, the control unit is used to receive the current signal and obtain the moment when the shock wave occurs, and the control unit is used to adjust the target pulse width corresponding to the signal according to the duration of the energy adjustment signal, determine the duration of the pulse output of the electrical pulse generation unit, and send the signal to the pulse generator according to the duration of the pulse output.
  • the electrical pulse generating unit issues pulse instructions to adjust the pulse width.
  • the IVL system also includes: an inverter boost unit and a power supply unit.
  • the power supply unit is connected to the input end of the electrical pulse generating unit through the inverter boost unit.
  • the inverter boost unit is used to boost the low voltage output by the power supply unit. to high pressure.
  • a shock wave energy adjustment system which is characterized in that the system includes: a shock wave sending module and a shock wave receiving module, an energy adjustment device,
  • one end of the energy adjustment device is connected to the shock wave emitting module, and the other end is connected to the shock wave receiving module.
  • the energy adjustment device is used to monitor the energy adjustment needs of the shock wave receiving module, determine the energy adjustment signal of the energy adjustment device, and adjust the shock wave emission according to the energy adjustment signal.
  • the shock wave energy of the module acts on the shock wave receiving module.
  • the technical solution of the embodiment of the present invention is to adjust the adjustment component, which sends out an energy adjustment signal.
  • the control unit After the control unit receives the energy adjustment signal, it adjusts the pulse width and/or pulse amplitude of the shock wave emitted by the electric pulse generating unit according to the energy adjustment signal. , thereby adjusting the energy of the pulse wave output by the energy adjustment device, and thereby adjusting the energy of the shock wave generated by the electrode pair. Therefore, during treatment, the pulse width and/or pulse amplitude of the high-voltage electric pulse can be adjusted according to actual needs to adjust the energy generated by the electrode pair to avoid the low energy of the shock wave generated by the electrode pair, resulting in poor therapeutic effect.
  • the shock wave generated by the electrode pair has high energy and causes damage to the patient's vascular intima, thereby realizing a pulse shock wave with adjustable output energy and reducing the damage to the patient's vascular intima due to excessive shock wave energy. damage.
  • this embodiment can adjust the voltage amplitude and/or pulse width by generating an adjustable energy adjustment signal according to the actual energy adjustment demand.
  • the shock wave outputting appropriate energy value acts on the target calcified tissue, which is beneficial to improving the user experience and making the treatment more efficient. Safe and reliable.
  • adjusting the energy of the shock wave can adjust the output energy of the shock wave to an appropriate energy value according to the actual situation of the patient's arterial calcification lesions, which can not only increase the energy of the shock wave, but also reduce the energy of the shock wave.
  • the voltage dividing unit mentioned in this embodiment not only achieves reliable breakdown of the shock wave balloon, but also effectively reduces the breakdown current of the shock wave balloon, thereby producing the impact of calcified diseased tissue.
  • a lower energy shock wave is required; after the balloon electrode breaks down, the voltage carried by the voltage dividing unit allows the balloon to receive a lower energy shock wave, and the voltage received by the balloon and/or the breakdown current flowing through it are reduced.
  • the appropriate energy value corresponding to the low energy demand is achieved, which avoids burning and damage of the built-in electrode of the shock wave balloon, and greatly improves the safety and reliability of IVL clinical treatment.
  • the adjustable energy adjustment signal corresponds to the adjustment of voltage amplitude and/or pulse width, acting on the calcified target tissue.
  • the appropriate energy value further ensures the safety and reliability of IVL surgery.
  • Figure 1 is a schematic structural diagram of a medical device provided by Embodiment 1 of the present invention.
  • FIG. 2 is a waveform diagram of a shock wave provided by Embodiment 1 of the present invention.
  • FIG. 3 is a waveform diagram of another shock wave provided by Embodiment 1 of the present invention.
  • FIG. 4 is a waveform diagram of yet another shock wave provided by Embodiment 1 of the present invention.
  • FIG. 5 is a waveform diagram of yet another shock wave provided by Embodiment 1 of the present invention.
  • FIG. 6 is a waveform diagram of yet another shock wave provided by Embodiment 1 of the present invention.
  • FIG. 7 is a waveform diagram of yet another shock wave provided by Embodiment 1 of the present invention.
  • FIG. 8 is a waveform diagram of yet another shock wave provided by Embodiment 1 of the present invention.
  • Figure 9 is a schematic circuit structure diagram of a medical device provided in Embodiment 2 of the present invention.
  • Figure 10 is a schematic circuit structure diagram of a medical device provided in Embodiment 3 of the present invention.
  • Figure 11 is a schematic circuit structure diagram of a medical device provided in Embodiment 4 of the present invention.
  • Figure 12 is a schematic circuit structure diagram of a medical device provided in Embodiment 5 of the present invention.
  • Figure 13 is a schematic circuit structure diagram of a medical device provided in Embodiment 6 of the present invention.
  • Figure 14 is a schematic circuit structure diagram of a medical device provided in Embodiment 7 of the present invention.
  • Figure 15 is a schematic circuit structure diagram of a medical device provided in Embodiment 8 of the present invention.
  • Figure 16 is a schematic structural diagram of a medical device provided in Embodiment 4 of the present invention.
  • Figure 17 is a schematic circuit structure diagram of yet another medical device provided in Embodiment 9 of the present invention.
  • Figure 18 is a schematic circuit structure diagram of yet another medical device provided by Embodiment 10 of the present invention.
  • Figure 19 is a schematic diagram of the circuit structure of a low-energy shock wave of another medical device provided by Embodiment 10 of the present invention.
  • Figure 20 is a flow chart of a control method for a medical device provided by Embodiment 11 of the present invention.
  • Figure 21 is a flow chart of a control method for a medical device provided in Embodiment 12 of the present invention.
  • the shock wave energy corresponding to the pulse amplitude in the preset amplitude range and/or the pulse width in the preset pulse width range can be used to preset the treatment effect and calcified lesions according to the degree of calcification of the target tissue.
  • the actual situation and so on are set, for example, the energy value corresponding to the preset energy adjustment signal involved in this application, Appropriate energy values, predetermined energy and energy ranges, etc., can also be set by those skilled in the art according to actual needs, and are not limited here.
  • the shock waves involved should at least include those used in IVL systems. includes boosted shock wave, and those skilled in the art can also set it according to actual needs for clinical application, which is not limited here.
  • FIG 1 is a schematic structural diagram of a medical device provided in Embodiment 1 of the present invention.
  • a medical device may be, for example, a balloon catheter that supports modulation of shock wave energy to target tissue.
  • the medical device includes: a balloon assembly 100 and an energy regulating device 300 .
  • the balloon assembly 100 includes a balloon 110 and an electrode pair 120.
  • the electrode pair 120 is disposed in the balloon 110.
  • the energy adjustment device 300 is configured to respond to the energy adjustment needs of the balloon in the insertion state and/or the removal state, and the energy adjustment device further includes an electrical pulse generating unit 310, a control unit 320 that receives an energy adjustment signal, and an adjustment component 330.
  • the adjusting component 330 is configured to adjust the pulse width and/or pulse amplitude of the shock wave emitted by the electrical pulse generating unit through the control unit 320,
  • the electrode pair is arranged in the balloon.
  • the high-voltage electric pulse output by the energy adjustment device generates shock waves in the balloon through the electrode pair and acts on the target tissue.
  • the control unit 320 is configured to adjust the electrical pulse generating unit 310 to emit a shock wave with a pulse amplitude that satisfies the preset amplitude interval according to the voltage value of the electrical pulse generating unit 310 and the target voltage amplitude corresponding to the energy adjustment signal.
  • the adjusting component 330 is connected to the control unit 320 , the control unit 320 is connected to the control end of the electric pulse generating unit 310 , and the output end of the electric pulse generating unit 310 is connected to the electrode pair 120 .
  • the adjustment component 330 is used to send an energy adjustment signal according to energy adjustment requirements, and the control unit 320 is used to receive the energy adjustment signal and adjust the pulse width and/or pulse amplitude of the shock wave sent by the electrical pulse generation unit 310 according to the energy adjustment signal.
  • the adjustment component 330 may, for example, send out an adjustment signal to increase energy, or may send out an adjustment signal to decrease energy.
  • the adjusting component 330 may, for example, send out a signal to increase/decrease the pulse width, or send out a signal to increase/decrease the pulse amplitude, or simultaneously increase/decrease the pulse amplitude and pulse width, so Realize the change of shock wave energy to eliminate or reduce the damage or impact caused by high or low shock wave energy.
  • the electric pulse generating unit 310 can output high-voltage electric pulses with adjustable energy to the electrode pair 120 in the balloon assembly 100.
  • the electrode pair 120 breaks down and discharges, generating a high-voltage shock wave with corresponding energy.
  • the high-voltage discharge over time causes part of the mixed solution of physiological saline and contrast agent in the balloon 110 to be instantly vaporized under the action of high-voltage breakdown discharge, generating non-focused, circumferential pulsed sound pressure waves.
  • the main function of sound pressure waves is It is suitable for solid calcified substances that cause arterial vascular lesions, and can pass through soft tissues such as human blood vessels and muscles with a density close to normal saline with almost no damage, so that it can safely impact and fragment calcified substances at superficial and deep diseased blood vessels, making The calcification is broken and loosened, and the blood vessels are moderately softened, thereby significantly improving the compliance of the blood vessels and making it easier to implant subsequent stents or drug balloons.
  • the adjustment component sends out an energy adjustment signal based on the difference between the target voltage amplitude and the current voltage value, and the control unit is used to receive
  • the energy adjustment signal is used to adjust the electrical pulse generating unit to emit a shock wave with a pulse amplitude that satisfies a preset amplitude range, and acts on the target tissue, wherein the amplitude of the preset amplitude range at least includes the target voltage amplitude.
  • the preset amplitude range can be set to a voltage amplitude range including the target voltage amplitude, making it equal to or close to the target voltage amplitude, or maintaining the pulse amplitude and the target pulse amplitude.
  • the error range of the value is within a certain range, preferably, such as ⁇ 5%.
  • the electrode pair is prone to breakdown discharge and generates shock waves, but the voltage amplitude is not too high, causing significant damage to the electrode pair, or the voltage amplitude is too low, making it difficult to breakdown discharge and unable to generate Shock waves, in this range, can safely and reliably generate shock waves, impact and fragment the calcified substances in superficial and deep diseased blood vessels, causing the calcifications to rupture and loosen.
  • the adjustment component 330 when the amplitude of the pulse voltage is too low, the electrode pair 120 built into the balloon 110 is difficult to breakdown and discharge, and cannot even generate shock waves, and cannot act on the target tissue to achieve the therapeutic purpose. Therefore, when the energy of the shock wave generated by the electrode pair 120 is lower than the predetermined energy, the adjustment component 330 is adjusted.
  • the adjustment component 330 sends an adjustment signal to increase the energy.
  • the control unit 320 controls the electrical pulse generation unit. 310 increases the pulse width of the shock wave, and/or the control unit 320 controls the electrical pulse generating unit 310 to increase the pulse amplitude of the shock wave, thereby increasing the energy of the shock wave generated by the electrode pair 120 .
  • the adjusting component 330 adjusts the signal, and the control unit 320 may adjust the signal, or the adjustment may be performed manually.
  • the adjustment component 330 is adjusted.
  • the adjustment component 330 sends out an energy adjustment signal with reduced energy, and the control unit 320 receives the energy adjustment signal.
  • control unit 320 controls the electrical pulse generating unit 310 to reduce the pulse width of the shock wave, and/or controls the electrical pulse generating unit 310 to increase the pulse amplitude of the shock wave, thereby reducing the energy of the shock wave generated by the electrode pair 120 .
  • the energy of the shock wave can avoid the problem that the energy generated by the electrode pair 120 is low, resulting in poor therapeutic effect; it can also avoid the problem that the energy generated by the electrode pair 120 is high, causing damage to the patient's blood vessel intima, thereby achieving output energy Adjustable pulse shock wave, and reduce the damage caused by excessive shock wave energy to the patient's vascular intima.
  • the energy value of the shock wave can be adjusted in a variety of ways.
  • the energy value of the shock wave can be adjusted by adjusting the voltage amplitude.
  • the control unit 320 is configured to adjust the energy value of the shock wave according to the voltage of the electrical pulse generating unit 310.
  • the electric pulse generating unit 310 adjusts the target voltage amplitude corresponding to the value and the energy adjustment signal to emit a shock wave with a pulse amplitude that meets the preset amplitude interval range.
  • the control unit 320 adjusts the pulse amplitude of the electrical pulse generating unit 310 .
  • the control unit 320 receives the energy adjustment signal, if the voltage value output by the electrical pulse generation unit 310 meets the target voltage amplitude corresponding to the energy adjustment signal, there is no need to adjust the pulse amplitude of the electrical pulse generation unit 310 .
  • the adjustment component 330 sends an energy adjustment signal according to the difference between the target voltage amplitude and the current voltage value, and exemplarily obtains the difference.
  • the control unit 320 will adjust the pulse amplitude of the electrical pulse generating unit 310, and adjust the electrical pulse generating unit 310 to send out a pulse amplitude that satisfies the preset amplitude range.
  • the piezoelectric pulse is used to adjust the pulse amplitude of the high-voltage electric pulse output by the electric pulse generating unit 310, so that the difference approaches 0, and the pulse amplitude is adjusted.
  • Figure 2 is a waveform diagram of a shock wave provided by Embodiment 1 of the present invention.
  • the voltage amplitude of the first waveform A11 is V1.
  • a second waveform with a voltage amplitude of V2 can be obtained.
  • Waveform A12 you can also get the third waveform A13 with a voltage amplitude of V3.
  • the pulse widths of the first waveform A11, the second waveform A12 and the third waveform A13 are all d, that is, the pulse width of the shock wave is kept unchanged, and the pulse width of the shock wave is adjusted.
  • the voltage amplitude can adjust the energy of the shock wave, so that the electrical pulse generating unit 310 emits high-voltage electrical pulses with a pulse amplitude that meets the preset amplitude range.
  • Figure 3 is a waveform diagram of another shock wave provided by Embodiment 1 of the present invention.
  • the shock wave output by the shock wave generating unit can be a moderate deformation of the rectangular pulse wave.
  • the voltage amplitude of the fourth waveform A21 is V1
  • the fifth waveform A22 with the voltage amplitude V2 can be obtained
  • the sixth waveform A23 with the voltage amplitude V3 can also be obtained
  • the pulse widths of the fourth waveform A21, the fifth waveform A22 and the sixth waveform A23 Both are d, that is, keeping the pulse width of the shock wave unchanged and adjusting the voltage amplitude of the high-voltage electric pulse to adjust the shock wave energy.
  • the energy value of the shock wave can be adjusted by adjusting the pulse width of the high-voltage electric pulse.
  • a shock wave pulse is generated.
  • the control unit 320 is configured to generate a shock wave pulse according to the electric pulse generating unit 310
  • the duration of the current signal, the duration of the pulse output, and the duration of the target pulse width corresponding to the energy adjustment signal adjust the pulse width of the high-voltage electric pulse issued by the electrical pulse generation unit 310.
  • the pulse command is used to adjust the pulse width.
  • the pulse width of the high-voltage electric pulse is adjusted, and the electric pulse generating unit 310 is adjusted to emit a shock wave with a pulse width that meets the preset pulse width interval, where the pulse width of the preset pulse width interval at least includes the duration of the pulse output.
  • Figure 4 is a waveform diagram of another shock wave provided by Embodiment 1 of the present invention.
  • the pulse width of the seventh waveform A31 is d1.
  • the eighth waveform A32 with a pulse width of d2 can be obtained.
  • the ninth waveform A33 with a pulse width of d3 can also be obtained.
  • the voltage amplitudes of the seventh waveform A31, the eighth waveform A32 and the ninth waveform A33 are all Vc, that is, the voltage amplitude of the high-voltage electric pulse remains unchanged, and the adjustment
  • the pulse width of the high-voltage electrical pulse can adjust the energy of the shock wave generated by the electrode pair.
  • Figure 5 is a waveform diagram of another shock wave provided by Embodiment 1 of the present invention.
  • the shock wave output by the shock wave generating unit can be a moderate deformation of the rectangular pulse wave.
  • the pulse width of the tenth waveform A41 is d1.
  • the pulse width By adjusting the pulse width, you can get the eleventh waveform A42 with a pulse width of d2, you can also get the twelfth waveform A43 with a pulse width of d3, the voltage amplitudes of the tenth waveform A41, the eleventh waveform A42 and the twelfth waveform A43
  • the values are all Vc, that is, the voltage amplitude of the high-voltage electric pulse is kept unchanged, the pulse width of the high-voltage electric pulse is adjusted to adjust the shock wave energy, and the electric pulse generating unit is adjusted to emit a pulse width that meets the preset pulse width interval.
  • the high-voltage electric pulse, the preset pulse width interval range can be set to a pulse width interval including the pulse width of the target pulse width pulse output, within this pulse width interval, the superficial and deep surfaces can be safely impacted and fragmented
  • the calcified material in the diseased blood vessels causes the calcification to rupture and loosen.
  • the energy value of the shock wave can be adjusted in a variety of ways.
  • the energy value of the shock wave can be adjusted by adjusting the voltage amplitude and simultaneously adjusting the pulse width.
  • Figure 6 is a waveform diagram of another shock wave provided by Embodiment 1 of the present invention.
  • the pulse width of the thirteenth waveform A51 is d1 and the voltage amplitude is V1.
  • the fourteenth waveform A52 with the pulse width d2 and the voltage amplitude V2 can be obtained, and the fifteenth waveform A33 with the pulse width d3 and the voltage amplitude V3 can also be obtained.
  • Figure 7 is a waveform diagram of another high-voltage electric pulse provided by Embodiment 1 of the present invention.
  • the high-voltage electric pulse output by the electric pulse generating unit can be a moderate deformation of the rectangular pulse wave.
  • the sixteenth waveform The pulse width of A61 is d1 and the voltage amplitude is V1.
  • the seventeenth waveform A62 with a pulse width of d2 and a voltage amplitude of V2 can be obtained. It can also be obtained that the pulse width is d3 and the voltage is V2.
  • the pulse width of the high-voltage electric pulse can be adjusted by keeping the voltage amplitude of the high-voltage electric pulse unchanged to achieve adjustment of the shock wave energy.
  • FIG. 8 is a waveform diagram of yet another shock wave provided by Embodiment 1 of the present invention.
  • the shock wave output by the shock wave generating unit can It is considered that a rectangular wave, that is, the first shock wave B1 in Figure 8, or a moderate deformation of the rectangular wave, that is, the second shock wave B2 and the third shock wave B3, is used to adjust the shock wave energy.
  • the moderate deformation of the rectangular wave can also be other forms of shock waves, which are not limited in this embodiment.
  • the order of adjusting the energy value of the shock wave by adjusting the voltage amplitude and adjusting the energy value of the shock wave by adjusting the pulse width is not limited, and only one adjustment can be performed according to actual needs.
  • the technical solution of this embodiment is to adjust the adjustment component, and the adjustment component sends out an energy adjustment signal.
  • the control unit receives the energy adjustment signal, it adjusts the pulse width and/or pulse of the high-voltage electric pulse sent by the electric pulse generation unit according to the energy adjustment signal. Amplitude, thereby adjusting the energy of the shock wave generated by the electrode pair in the balloon. Therefore, during treatment, the shock wave energy generated by the electrode pair can be adjusted according to actual needs to avoid the problem that the shock wave energy generated by the electrode pair is low, resulting in poor therapeutic effect; it can also avoid the problem that the shock wave energy generated by the electrode pair is high, which is harmful to the patient.
  • this embodiment adjusts the voltage amplitude and/or pulse width according to the adjusted energy adjustment signal, which can Obtaining the required shock wave energy value is beneficial to improving user experience.
  • adjusting the energy of the shock wave can not only increase the energy of the shock wave, but also reduce the energy of the shock wave, so that the energy of the shock wave power supply can be adjusted according to different shock wave balloons and the actual conditions of the patients, so that the pulse voltage amplitude and pulse width have a certain range, which can minimize the operation time, reduce the damage to the balloon and the electrode pair, ensure the normal service life of the shock wave balloon, and make the operation safe and reliable.
  • FIG. 9 is a schematic circuit structure diagram of a medical device provided in Embodiment 2 of the present invention.
  • the medical device further includes a detection unit 410 , the first end of the detection unit 410 is connected to the detection end of the electrical pulse generating unit 310 , and the second end of the detection unit 410 is connected to the control unit 320 .
  • the medical device also includes a detection unit 410.
  • the detection unit 410 is configured to collect the current signal of the electrical pulse generating unit 310, and control the current signal of the electrical pulse generating unit 310 through the control unit 320, when it is necessary to adjust the energy of the output shock wave.
  • High voltage electrical pulses with a range of pulse widths When High voltage electrical pulses with a range of pulse widths.
  • control unit 320 is configured to adjust the electrical pulse generating unit 310 to send out a pulse that satisfies the preset pulse width interval according to the duration of the pulse output of the electrical pulse generating unit 310 and the duration of the target pulse width corresponding to the energy adjustment signal.
  • the detection unit 410 is used to collect the current signal of the electrical pulse generation unit 310 when the pulse width needs to be adjusted.
  • the control unit 320 is used to receive current signals.
  • the control unit 320 is used to obtain the shock wave generation time based on the current signal, and the control unit 320 is used to determine the duration of the pulse output of the electrical pulse generation unit 310 based on the duration of the target pulse width corresponding to the energy adjustment signal, and based on the calculated pulse
  • the output duration sends a pulse command to the electrical pulse generating unit 310 .
  • the detection unit 410 collects the current signal of the electrical pulse generating unit 310.
  • the control unit 320 receives the current signal and determines the time when the shock wave occurs based on the current response delay length of the current signal.
  • the control unit 320 calculates the duration of the corresponding target pulse width based on the target pulse width corresponding to the energy adjustment signal.
  • the control unit 320 issues a pulse instruction to the high-voltage electric pulse sounding unit 310 according to the duration of the pulse output by the electric pulse generating unit 310.
  • the pulse instruction includes, for example, an instruction to stop outputting current or stopping output of high-voltage electric pulses, so that the electric pulse generating unit 310 outputs a pulse instruction.
  • the output current is stopped so that the pulse width output by the electrical pulse generating unit 310 meets the target pulse width, and the electrical pulse generating unit 310 is adjusted to emit a high voltage with a pulse width that meets the preset pulse width interval.
  • Electrical pulses act on the electrode pair in the balloon to generate shock waves, which act on the target tissue to loosen calcified tissue.
  • the current response delay time of the current signal is, for example, 0.3 to 0.5 us.
  • the detection unit 410 is, for example, a current sensor or a current transformer, or may be other devices that can collect current signals.
  • the detection unit 410 uses a Rogowski coil current sensor to detect the shock wave pulse current, which is isolated from high-voltage electric pulses, has high safety and fast response speed. It should be understood that in the balloon 110, a high-voltage pulse wave is generated between the electrode pairs 120. The high-voltage pulse wave requires a high-voltage electric pulse signal, and in the high-voltage electric pulse signal, the pulse output width is difficult to adjust.
  • the control unit 320 captures and collects the current signal of the detection unit 410, and then determines the time when the shock wave occurs according to the inherent response delay time of the current signal, and then calculates the output
  • the duration of the pulse when the current value of the electrical pulse generating unit 310 is greater than the preset current threshold, it is determined that an effective shock wave has occurred. Specifically, when the current value of the electrical pulse generating unit 310 is greater than the preset current threshold, it indicates that the electrical pulse generating unit 310 outputs a pulse wave, and then the sum of the current collection duration and the delayed response duration is calculated to determine the value of the detected shock wave.
  • the control unit 320 issues a pulse command to the electrical pulse generating unit 310 .
  • the pulse command is, for example, a stop output pulse command.
  • the control unit 320 can determine the duration of the target pulse width corresponding to the energy adjustment signal according to the energy adjustment signal.
  • the control unit 320 issues a pulse command to the electrical pulse generating unit 310 and controls the electrical pulse generating unit 310 to stop outputting current, thereby adjusting the pulse width and energy of the pulse wave output by the electrical pulse generating unit 310
  • the target pulse width corresponding to the signal is consistent, and the energy of the pulse wave is adjusted.
  • a high-voltage electric pulse with a pulse width that meets the preset pulse width range is applied to the electrode pair 120, and a shock wave corresponding to the target energy value is generated in the balloon 110. .
  • Collect the current signal of the electrical pulse generating unit 310 When the current value of the electrical pulse generating unit 310 is greater than the preset current threshold, determine the shock wave duration threshold corresponding to the current signal.
  • the duration threshold includes the current acquisition duration and the delayed response duration; when the energy adjustment
  • the control unit adjusts the electrical pulse generating unit 310 to emit a shock wave with a pulse width that satisfies the preset pulse width interval, acting on The target tissue; wherein the preset difference value includes a preset difference range, and/or the preset difference value includes a preset ratio range.
  • the preset difference range indicates that the duration of the target pulse width can be different from the detected shock wave duration threshold. For example, when the difference is close to 0, it indicates that the duration of the pulse output by the electrical pulse generating unit 310 meets the target pulse width.
  • the preset ratio range can calculate the ratio between the duration of the target pulse width and the duration threshold. For example, when the ratio is close to 1, it indicates that the duration of the output pulse of the electrical pulse generating unit 310 meets the target pulse width, which solves the problem that pulse width adjustment cannot be realized in the existing technology. technical issues.
  • a shock wave is generated between the electrode pairs 120 under the action of a high-voltage electric pulse, and the adjustment of the shock wave pulse width is implemented by the control unit 320 .
  • the control unit 320 is used to calculate the delay cut-off duration of the pulse signal generated by the electrical pulse generation unit 310 according to the target pulse width and the response duration of the current signal when the detection unit 410 collects the current signal. That is, when the control unit 320 detects the occurrence of a current signal, the control unit 320 delays the pulse width adjustment requirement according to the energy adjustment requirement set by the adjustment component 330, that is, according to the difference between the target pulse width and the response time of the current detection signal.
  • the control unit 320 includes at least one of an MCU, a DSP, and an FPGA.
  • MCU is Microcontroller Unit
  • DSP is Digital Signal Process
  • FPGA is Field Programmable Gate Array.
  • the control unit 320 can be implemented by MCU, DSP or FPGA, or it can It is realized by any combination of MCU, DSP and FPGA chips to realize the control function.
  • the medical device further includes an inverter boosting unit 420 and a power supply unit 430 .
  • the power supply unit 430 is connected to the input end of the electrical pulse generating unit 310 through the inverter boosting unit 420 .
  • the power supply unit 430 provides a power supply voltage.
  • the inverter boost unit 420 is used to increase the low voltage output by the power supply unit 430 to a high voltage.
  • the voltage of the pulse output by the electrical pulse generation unit 310 is greater than 700V, thereby facilitating the electrode pair 120 to generate a high voltage shock wave.
  • the pulse voltage is between 700V and 5000V. Even better, the pulse voltage is greater than 1000V. Going one step further, the voltage of the pulse is greater than 1500V.
  • the inverter boost unit 420 is used to raise the low voltage output by the power supply unit to a high voltage or reduce the high voltage output by the power supply unit to a low voltage when the balloon is inserted or removed.
  • the output end of the inverter boost unit 420 is connected to the power supply.
  • the input terminal of the pulse generating unit is electrically connected, and the control unit is electrically connected to the control terminal of the inverter boost unit.
  • the control unit is used to control the inverter boost unit to adjust the pulse amplitude when the pulse amplitude needs to be adjusted.
  • the medical device further includes an inverter boost unit 420.
  • the output end of the inverter boost unit 420 is electrically connected to the input end of the electrical pulse generating unit 310.
  • the control unit 320 is connected to the inverter boost unit 420.
  • the control terminal is electrically connected, and the control unit 320 is used to control the inverter boost unit 420 to adjust the pulse amplitude when the pulse amplitude needs to be adjusted. Specifically, when the energy of the shock wave needs to be adjusted, the pulse amplitude can be adjusted.
  • the control unit 320 controls the voltage amplitude output by the inverter boost unit 420 according to the energy adjustment signal, thereby controlling the inverter boost unit 420 to adjust the pulse amplitude and increase or decrease the electrical pulse generating unit 310
  • the output pulse amplitude is adjusted to adjust the shock wave energy generated by the electrode pair 120 .
  • the electrical pulse generation unit 310 also includes a trigger unit 340 and an energy storage unit 350.
  • the control unit 320 is connected to the energy storage unit 350 through the trigger unit 340.
  • the control unit 320 controls the trigger unit 340 by outputting a control signal.
  • the trigger unit 340 outputs a high-level signal or a low-level signal, thereby controlling whether the energy storage unit 350 outputs a pulse.
  • the control unit 320 controls the trigger unit 340 to output a high-level signal
  • the energy storage unit 350 outputs a signal
  • the control unit 320 controls the trigger unit 340 to output a low-level signal
  • the energy storage unit 350 does not output a signal, thereby forming a pulse wave.
  • the detection unit 410 collects the current signal of the electrical pulse generating unit 310 to collect the current signal of the energy storage unit 350 .
  • Figure 10 is a circuit structure of another medical device provided by Embodiment 3 of the present invention.
  • the pulse current detection unit 410 includes a current sensor 411 , an integrating amplifier circuit 413 , and a voltage comparator 412 .
  • the current sensor 411 can be connected between the energy storage unit 350 and the output interface 390 of the handle 200 to detect the shock wave pulse current.
  • the control unit 320 is equipped with an "ADC" function module inside.
  • the output signal of the current sensor 411 is the differential of the pulse current.
  • the amplifier circuit 413 restores the pulse voltage signal proportional to the pulse current.
  • One of the signals passes through the "ADC” function module inside the control unit 320 for data conversion and processing, and real-time monitoring of the size of the shock wave current signal; at the same time, the other signal, Through the voltage comparator, it is compared with the "current signal threshold" that the balloon can receive. When the real-time monitored shock wave current signal exceeds the "current signal threshold", the voltage comparator 412 outputs a high or low level flip signal, and the control unit 320 responds to the received signal.
  • the received level flip signal of the voltage comparator 412 determines the moment when the pulse current is generated, so that when the duration of the pulse output by the electrical pulse generating unit 310 reaches the duration of the target pulse width, that is, when the target energy value of the shock wave is reached, the output of the current is stopped. , so that the pulse width output by the electrical pulse generating unit 310 meets the target pulse width, thereby realizing the adjustment of shock wave energy.
  • the control unit 320 detects the occurrence of a current signal, the control unit 320 delays and cuts off the pulse signal generated by the electrical pulse generating unit 310 according to the difference between the target pulse width and the response time of the current signal, thereby controlling the high
  • the pulse width of the piezoelectric pulse realizes the adjustment of shock wave energy.
  • FIG. 11 is a schematic circuit structure diagram of a medical device provided in Embodiment 4 of the present invention.
  • the adjustment component 330 includes at least one of a touch screen 301, a button 302, a potentiometer 303, and an encoder 304.
  • the touch screen 301 represents an implementation form of the adjustment component 330 , and does not mean that the touch screen 301 and the adjustment component 330 are two components.
  • the expressions of the button 302, the potentiometer 303 and the encoder 304 have the same meaning as the touch screen 301.
  • the medical device also includes a handle 200 and a host.
  • the adjustment component 330 includes at least one of a touch screen 301, a button 302, a potentiometer 303, and an encoder 304.
  • the adjustment component 330 is provided on the handle 200 or the host.
  • the design of the handle 200 is ergonomic, making it easy for the operator to operate when holding it.
  • the host is, for example, a shell device, the energy adjustment device 300 is disposed inside the host, and the touch screen 301 can be disposed on the host to facilitate display and operation.
  • the energy conditioning device 300 includes a touch screen 301 .
  • the required energy value is input through the touch screen 301 to adjust the energy of the high-voltage pulse wave output by the energy adjustment device 300 .
  • the touch screen 301 can display the size of the energy value, the numerical value of the energy, etc., or the touch screen 301 has energy display of high, medium and low levels, and can display the energy value in segments.
  • the touch screen 301 includes a human-computer interaction interface, through which a specific energy value can be input, or an energy progress bar can be set to realize continuous or segmented adjustment of the energy value.
  • the touch screen 301 includes an energy step adjustment button 3011 or an energy stepless adjustment button 3012.
  • the touch screen 301 is provided on the handle 200 Or on the host.
  • the touch screen 301 is connected to the control end of the inverter boost unit 420 through the control unit 320, and the touch screen 301 is connected to the trigger unit 340 through the control unit 320.
  • the inverter boost unit 420 includes, for example, a DC-DC boost circuit. According to the required energy value, the energy segment adjustment button 3011 or the energy stepless adjustment button 3012 of the touch screen 301 is adjusted.
  • the control unit 320 receives the energy adjustment signal.
  • the control signal is output to the inverter boost unit 420, and the inverter boost unit 420 is controlled to adjust the output DC charging voltage according to the required energy value, thereby adjusting the energy output by the energy storage unit 350, and thereby adjusting the shock wave generated by the electrode pair 120.
  • energy of For example, when adjusting the energy segment adjustment button 3011, the control unit 320 receives the segment adjustment signal and controls the inverter boost unit 420 to output the corresponding DC charging voltage; when adjusting the energy stepless adjustment button 3012, the control unit 320 320 receives the stepless adjustment signal and controls the inverter boost unit 420 to output the corresponding DC charging voltage to achieve continuous adjustment of the pulse amplitude.
  • the control unit 320 After receiving the energy adjustment signal, the control unit 320 outputs the control signal to the trigger unit 340, so that the trigger unit 340 adjusts the energy according to the required energy value.
  • the value adjusts the pulse width of the output trigger signal, thereby adjusting the pulse width of the high-voltage electrical pulse output by the energy storage unit 350, thereby adjusting the energy of the shock wave generated by the electrode pair 120.
  • the touch screen 301 can display the energy value, the DC charging voltage output by the inverter boost unit 420, and the pulse width of the trigger signal output by the trigger unit 340, so that the user can intuitively obtain the status of the medical device. It should be noted that FIG. 12 only shows the case where the touch screen 301 is provided on the handle 200, but this is not limiting.
  • FIG. 12 is a schematic circuit structure diagram of a medical device provided in Embodiment 5 of the present invention.
  • the energy adjustment device 300 includes a button 302 .
  • the button 302 is preferably on the handle 200, but may also be provided on the host computer.
  • the keys 302 are, for example, numeric buttons, energy addition and subtraction buttons, and the like. When it is a digital button, by pressing the button 302, the required energy value can be input, thereby increasing or decreasing the energy of the high-voltage pulse wave output by the energy adjustment device 300.
  • the keys 302 include an energy increase key 3021 and an energy decrease key 3022.
  • the energy increase key 3021 or the energy decrease key 3022 implements segmented adjustment of the adjustment components.
  • the energy increase key 3021 is connected to the control unit 320.
  • the energy increase key 3021 is configured to output an amplitude increase signal to the inverter boost unit 420 when activated, so as to increase the DC charging voltage output by the inverter boost unit 420, and/or , when operating, a pulse width increasing signal is output to the trigger unit 340 to increase the pulse width of the trigger signal output by the trigger unit 340 .
  • the energy reduction key 3022 is connected to the control unit 320 .
  • the energy reduction key 3022 is configured to output an amplitude reduction signal to the inverter boost unit 420 when activated, so as to reduce the DC charging voltage output by the inverter boost unit 420, and/or to trigger the Unit 340 outputs a pulse width reduction signal to reduce the touch
  • the pulse width of the trigger signal output by the generating unit 340 For example, when the energy increase key 3021 is pressed, the control unit 320 receives the first energy adjustment signal, controls the amplitude of the DC charging voltage output by the inverter boost unit 420 to increase, and can also control the pulse width output by the trigger unit 340 to increase.
  • control unit 320 receives the second energy adjustment signal and controls the amplitude of the DC charging voltage output by the inverter boost unit 420 to decrease, or it can also control the pulse width output by the trigger unit 340 to decrease.
  • the first end of the energy increase key 3021 can be connected to the third end of the inverter boost unit 420 through the control unit 320, and the second end of the energy increase key 3021 can be connected to the trigger unit 340 through the control unit 320; when pressed When the energy increase key 3021 is pressed, the control unit 320 receives the first energy adjustment signal, and will control the DC charging voltage amplitude output by the inverter boost unit 420 to increase, and may also control the pulse width output by the trigger unit 340 to increase. Thus, the energy of the high-voltage pulse wave output by the energy storage unit 350 is increased, thereby increasing the energy of the shock wave generated by the electrode pair 120 .
  • the first end of the energy reduction key 3022 can be connected to the fourth end of the inverter boost unit 420 through the control unit 320, and the second end of the energy reduction key 3022 can be connected to the trigger unit 340 through the control unit 320; when pressed When the energy reduction key 3022 is pressed, the control unit 320 receives the second energy adjustment signal, and will control the DC charging voltage amplitude output by the inverter boost unit 420 to decrease, and may also control the pulse width output by the trigger unit 340 to decrease, thereby The energy of the high-voltage pulse wave output by the energy storage unit 350 is reduced, thereby reducing the energy of the shock wave generated by the electrode pair 120 .
  • FIG. 13 is a schematic circuit structure diagram of a medical device provided in Embodiment 6 of the present invention.
  • the energy adjustment device 300 includes a potentiometer 303 .
  • the potentiometer 303 is, for example, preferably a rotary potentiometer 303.
  • the resistance value of the potentiometer 303 can be adjusted, and the required energy value can be determined according to the resistance value to adjust the energy of the high-voltage pulse wave output by the energy adjustment device 300.
  • the potentiometer 303 is connected to the control unit 320.
  • the inverter boost unit 420 is configured to output a corresponding DC charging voltage according to the resistance of the potentiometer 303
  • the trigger unit 340 is configured to output a corresponding DC charging voltage according to the resistance of the potentiometer 303.
  • the value outputs the corresponding trigger signal.
  • the potentiometer 303 includes a knob, which realizes stepless adjustment of the adjustment component 330 .
  • the inverter boost unit 420 includes, for example, a DC-DC voltage conversion circuit.
  • the potentiometer 303 can be connected to the inverter boost unit 420 through the control unit 320.
  • the potentiometer 303 is rotated, and the control unit 320 receives After receiving the energy adjustment signal, the control signal is output to the inverter boost unit 420 to control the inverter boost unit 420 to adjust the output DC charging voltage amplitude according to the required energy value, so that the energy output by the energy storage unit 350 can be continuously and steplessly adjusted. , and then continuously and steplessly adjust the energy of the shock wave generated by the electrode pair 120.
  • the trigger unit 340 can, for example, generate a trigger signal in the form of a pulse, and adjust the potentiometer according to the required energy value.
  • the control unit 320 receives the corresponding resistance value or voltage value, and determines the duration of the pulse output by the electrical pulse generating unit 310 according to the corresponding resistance value or voltage value, thereby controlling the trigger unit 340 to adjust the output trigger signal according to the required energy value.
  • the smaller the pulse width the smaller the energy output by the energy storage unit 350.
  • the larger the pulse width the greater the energy output by the energy storage unit 350, thereby adjusting the energy of the high-voltage pulse wave output by the energy storage unit 350, thereby adjusting The energy of the shock wave generated by the electrode pair 120.
  • the control unit 320 receives an energy increase signal; when the potentiometer 303 is rotated counterclockwise, the control unit 320 receives an energy decrease signal; or, when the potentiometer 303 is rotated clockwise, the control unit 320 receives an energy decrease signal.
  • the energy decrease signal is received, the potentiometer 303 is rotated counterclockwise, and the control unit 320 receives the energy increase signal.
  • FIG. 14 is a schematic circuit structure diagram of a medical device provided in Embodiment 7 of the present invention.
  • the energy conditioning device 300 includes an encoder 304 .
  • the encoder 304 includes a knob that enables stepless adjustment of the adjustment component 330 .
  • the encoder 304 includes, for example, a rotary encoder or an absolute encoder, or may be other encoders.
  • the first end of the encoder 304 is connected to the third end of the inverter boost unit 420 through the control unit 320
  • the second end of the encoder 304 is connected to the trigger unit 340 through the control unit 320 .
  • the encoder By rotating the encoder 304, the encoder outputs a series of high-voltage electrical pulse signals, which are decoded by the control unit 320.
  • Rotating the encoder 304 clockwise can, for example, increase the output shock wave energy; rotating the encoder 304 counterclockwise can, for example, reduce the output shock wave.
  • Energy, according to the direction, number of grids and number of turns of the rotary encoder, the required energy value is determined, and the energy of the high-voltage pulse wave output by the energy adjustment device 300 is adjusted.
  • the inverter boost unit 420 is configured to output a corresponding DC charging voltage according to the rotation direction of the encoder 304, the number of rotations, and the number of turns, and/or the trigger unit 340 is configured to output a corresponding DC charging voltage according to the rotation direction of the encoder 304. , the number of grids and turns of rotation outputs the corresponding trigger signal.
  • the inverter boost unit 420 includes, for example, a DC-DC voltage conversion circuit.
  • the first end of the encoder 304 can be connected to the third end of the inverter boost unit 420 through the control unit 320.
  • the Adjust the encoder 304 clockwise or counterclockwise.
  • the control unit 320 After the control unit 320 receives the energy adjustment signal, the control unit 320 decodes it, outputs the control signal to the inverter boost unit 420, and controls the inverter boost unit 420 to adjust the output according to the required energy value.
  • DC charging voltage amplitude thereby continuously adjusting the energy output by the energy storage unit 350, thereby achieving stepless adjustment of the energy of the shock wave generated by the electrode pair 120.
  • the trigger unit 340 can, for example, generate a trigger signal in the form of a pulse.
  • the second end of the encoder 304 can be connected to the trigger unit 340 through the control unit 320.
  • the encoder 304 is adjusted according to the required energy value.
  • FIG. 15 is a schematic structural diagram of a medical device provided in Embodiment 8 of the present invention.
  • the electrical pulse generation unit 310 also includes a discharge switch 311; the second end of the trigger unit 340 is connected to the second end of the energy storage unit 350 through the discharge switch 311, and the discharge switch 311 is configured to when the trigger signal is Closed at first level.
  • the trigger unit 340 outputs a trigger signal to the discharge switch 311.
  • the discharge switch 311 is closed, and the energy storage unit 350 outputs a signal.
  • the discharge switch 311 When the trigger signal is the second level, for example, the second level is low level, the discharge switch 311 is turned off, and the energy storage unit 350 does not output a signal.
  • the alternating conversion of the first level and the second level forms a pulse wave, and the energy storage unit 350 outputs the pulse wave to the electrode pair 120, causing the electrode pair 120 to generate a high-voltage shock wave.
  • the medical device further includes a treatment switch 360 .
  • the therapy switch 360 is located on the handle 200. Specifically, the treatment switch 360 is placed on the handle 200 for convenient operation.
  • the control unit 320 receives the signal and controls the trigger unit 340 to output a trigger signal, so that the energy storage unit 350 responds to the trigger signal and outputs a pulse wave to the electrode pair 120, and the electrode pair 120 generates a corresponding high-voltage shock wave.
  • the treatment switch 360 controls, for example, the output and shutdown of shock waves.
  • the medical device further includes a voltage stabilizing unit 370 .
  • the power supply unit 430 is connected to the first end of the voltage stabilizing unit 370
  • the second end of the voltage stabilizing unit 370 is connected to the first end of the inverter boosting unit 420 .
  • the voltage stabilizing unit 370 can ensure that the power supply unit 430 outputs a stable voltage, thereby ensuring that the inverter boosting unit 420 and the energy storage unit 350 can work stably, thereby improving the stability of the medical device.
  • the medical device further includes a power switch 380 ; the power unit 430 is connected to the first end of the voltage stabilizing unit 370 through the power switch 380 .
  • the power unit 430 can output an electrical signal to the voltage stabilizing unit 370 to provide electrical signals for the inverter boost unit 420 and the control unit 320; when When the medical device is used, press the power switch 380 again, the power switch 380 is turned off, the inverter boost unit 420 and the control unit 320 lose power and stop working.
  • the energy conditioning device 300 further includes an output interface 390 ; the energy storage unit 350 is connected to the electrode pair 120 through the output interface 390 .
  • the energy storage unit 350 can output the pulse wave to the electrode pair 120 through the output interface 390, so that the electrode pair 120 generates a high-voltage shock wave.
  • the power supply unit 430 includes a lithium battery pack.
  • the use of lithium battery packs for power supply makes medical devices portable and does not require access to power at a fixed location; and lithium battery packs store more energy and can Extending the use time of treatment equipment will help improve user experience.
  • the medical device further includes a voltage sampling unit 391, which is connected to the second end of the inverter boost unit 420, and the voltage sampling unit 391 is configured to collect the DC output by the inverter boost unit 420. Charging voltage.
  • the voltage sampling unit 391 can collect the DC charging voltage output by the inverter boost unit 420, and can send the DC charging voltage to the touch screen 301.
  • the touch screen 301 can display the amplitude of the DC charging voltage output by the inverter boost unit 420, This allows the user to determine whether the amplitude of the DC charging voltage output by the inverter boost unit 420 reaches the target voltage amplitude; when the amplitude of the DC charging voltage does not match the target voltage amplitude, the user can continue to adjust the touch screen 301, button 302, and potential. 303 or encoder 304 to continue to adjust the DC charging voltage output by the inverter boost unit 420 until the amplitude of the DC charging voltage reaches the target voltage amplitude, thereby ensuring that the energy of the shock wave generated by the electrode pair 120 meets the demand.
  • This embodiment can achieve segmented and/or continuous adjustment of the output energy of the shock wave power supply, control the output shock wave energy, and improve clinical adaptability during the clinical treatment of the IVL system and related medical research and experiments on arterial vascular calcification lesions. sex.
  • the operator can adjust the output shock wave pulse energy according to the patient's actual arterial calcification lesions and treatment effects to effectively break and loosen calcified materials and increase the lumen diameter of the blood vessel to facilitate subsequent vascular stent implantation. and other treatment measures to improve postoperative results and shorten patient recovery time.
  • FIG. 17 is a schematic circuit structure diagram of yet another medical device provided in Embodiment 9 of the present invention.
  • the power supply unit 430 includes a lithium battery pack 431
  • the inverter boost unit 420 includes a DC-DC boost unit 421
  • the detection unit 410 includes a current sensor 411.
  • the current sensor 411 can be connected between the energy storage unit 350 and the output interface 390. During the period, the current signal output by the energy storage unit 350 is collected, and the current signal can be output to the control unit 320; the output interface 390 is connected to the control unit 320, and the control unit 320 can control whether the output interface 390 is turned on, and can also detect the output interface.
  • the medical device also includes a switch circuit 440, the power switch 380 is connected to the voltage stabilizing unit 370 through the switch circuit 440, and the power switch 380 is connected to the power end of the control unit 320 through the switch circuit 440;
  • the medical device also includes a regulator Unit 450, the control unit 320 is connected to the DC-DC boost unit 421 through the adjustment unit 450.
  • the adjustment unit 450 can adjust the amplitude and pulse width of the control signal output by the control unit 320, thereby adjusting the voltage received by the DC-DC boost unit 421.
  • the control signal is used to adjust the amplitude of the DC charging voltage output by the DC-DC boost unit 421.
  • FIG. 18 is a schematic circuit structure diagram of another medical device provided by Embodiment 10 of the present invention. Due to the physical structure limitations of the shock wave balloon, the high-voltage pulse shock wave excitation signal must reach a certain amplitude, such as DC2000V or above, or the ground is within the range of DC2000V ⁇ DC3500V, so that the built-in electrode of the shock wave balloon can break down the discharge and generate pulse sound pressure shock waves for treatment.
  • a certain amplitude such as DC2000V or above
  • DC3500V the ground is within the range of DC2000V ⁇ DC3500V
  • the balloon electrode cannot break down and shock waves cannot be generated; if the excitation voltage is too high, when the balloon electrode breaks down and discharges, the current will be too large, and the built-in electrode will be easily burned, seriously affecting the service life.
  • the turn-on and turn-off delay times of general high-voltage switching devices are above 0.1us, and the discharge current detection time is generally above 0.2us.
  • a low-energy shock wave is required to vibrate the calcified material flat and smooth out the uneven tissue, thereby smoothing and dredging the low-energy calcified material.
  • Shock waves are used in the clinical treatment of arterial stenosis, blockage and other diseases, as well as other application scenarios that require low-energy shock waves.
  • a voltage dividing unit 460 is provided in the high-voltage pulse discharge circuit provided in this embodiment. One end of the voltage dividing unit 460 is electrically connected to the output end of the electrical pulse generating unit 310, and the other end of the voltage dividing unit serves as an output end.
  • the electrode pairs 120 provided in the balloon 110 are connected, and the voltage dividing unit is used to bear part of the pulse wave voltage and/or limit the pulse wave current.
  • the high-voltage electrical pulses emitted by the electrical pulse generating unit 310 may be directly output by the high-voltage pulse power supply unit or high-voltage electrical pulses adjusted by the energy adjustment signal, and then divided by the voltage dividing unit 460 for outputting the divided voltage.
  • the pulse width and/or pulse amplitude of the balloon after pressure and/or current limiting are in the continuous breakdown state, so that the balloon can receive low-energy shock waves in the continuous breakdown state, so that the discharge breakdown current of the electrode pair is reduced.
  • the energy of the shock wave is further reduced, achieving a low-energy shock wave that maintains the shock wave balloon in a continuous breakdown state.
  • the voltage divided by the series voltage dividing unit 460 causes the power supply unit 430 to control a part of the output DC voltage of the power supply unit 430 through the power switch 380 to be directly loaded into the shock wave balloon.
  • the high-voltage pulse output power supply unit 430 is connected in series with the voltage dividing unit 460, so that when the balloon 110 undergoes breakdown discharge under high-voltage excitation, the output voltage of the power supply unit 430 is divided by the voltage dividing unit 460, and the voltage generated by the electrode pair 120
  • the actual voltage and current of the shock wave energy are controlled by the voltage dividing unit 460 so that the impact energy of the pulse shock wave can be limited within a certain range.
  • FIG 19 is a schematic diagram of the circuit structure of a low-energy shock wave of a medical device provided in Embodiment 10 of the present invention.
  • the power switch Q1 when the power switch Q1 is closed, the conduction voltage drop is very low and can be ignored.
  • the voltage value provided by the high-voltage pulse output power supply unit 430 is S1
  • the series voltage dividing unit 460 on the discharge path is set as a high voltage dividing current limiting resistor Rv with a certain variable resistance value.
  • the specific value of Rv can be determined according to the shock wave energy.
  • the series connected voltage dividing current limiting resistor Rv After the balloon breaks down, the internal resistance basically remains unchanged. When the internal resistance is the same, the shock wave energy value can be greatly reduced;
  • the shock wave energy of the same pulse width is proportional to the square of the discharge current, so the shock wave energy is reduced to 1/4 of the original, and the shock wave energy is greatly decrease.
  • the internal resistance of the balloon is much larger than the voltage-dividing current-limiting resistor Rv under the high-voltage pulse excitation before breakdown discharge, so the high-voltage pulse is almost completely loaded to The balloon ensures that the balloon can penetrate normally and generate shock waves.
  • the internal resistance becomes smaller instantly due to the formation of a discharge current path.
  • the shock wave high voltage in the circuit is partially divided by the voltage dividing and current limiting resistor Rv in series, and the shock wave current is divided by the voltage dividing and current limiting resistor Rv.
  • the internal resistance of the cable and balloon catheter is limited to a certain range. Therefore, the high-voltage pulse voltage on the shock wave balloon falls back instantly after the built-in electrode of the balloon breaks down and is maintained within a certain range to ensure that the balloon can continue to breakdown. In this state, a lower energy shock wave is produced.
  • the internal resistance of the balloon 110 is much larger than the resistance Rv of the voltage dividing unit 460 under the high-voltage pulse excitation before breakdown and discharge. At this time, almost all the high-voltage pulses are loaded into the balloon 110, which ensures that the balloon 110 can break down normally and generate a high-voltage pulse shock wave.
  • the internal resistance of the balloon catheter is limited to a certain range, so that the high-voltage pulse voltage received on the balloon 110 falls back instantly after the built-in electrode of the balloon breaks down, and remains in a state that ensures that the balloon can continue to break down, generating a lower energy shock wave. Within the energy range, it acts on the calcification of diseased tissues.
  • the pressure dividing unit mentioned in this embodiment can reliably penetrate the shock wave balloon by the shock wave of high-voltage energy, and at the same time effectively reduces the shock wave.
  • the breakdown current of the balloon generates a lower energy shock wave required to impact the calcified diseased tissue; after the balloon electrode breaks down, the voltage carried by the voltage dividing unit allows the balloon to receive a lower energy shock wave, which is achieved through the voltage dividing unit
  • the output of the electric pulse unit can be a high-voltage electric pulse output according to the energy adjustment requirement, or it can be directly output from the high-voltage power supply unit to
  • the high-voltage electric pulse of the electric pulse generating unit passes through the voltage dividing unit to reduce the voltage generated by the balloon's built-in electrode pair and/or the flowing breakdown current to the low or low level required for the target calcified tissue or calcified site. It requires lower energy and avoids burning and damage to the built-in electrode pair of the shock wave balloon, which greatly improves the safety and reliability of IVL clinical treatment.
  • FIG. 20 is a flow chart of a control method for a medical device provided in Embodiment 11 of the present invention.
  • the control method is used to adjust the shock wave energy of a balloon catheter.
  • the control method adopts the medical device provided in this embodiment.
  • the control method includes:
  • the adjustment component is used to send out energy adjustment signals
  • the adjustment component 330 can be adjusted, and the adjustment component 330 sends out an energy adjustment signal.
  • the adjustment component 330 may be adjusted by the control unit 320 or may be adjusted by the user.
  • the control unit receives the energy adjustment signal, and adjusts the pulse width and/or pulse amplitude of the high-voltage electric pulse sent by the electric pulse generating unit according to the energy adjustment signal. Specifically, after receiving the energy adjustment signal, the control unit 320 adjusts the pulse width and/or pulse amplitude of the high-voltage electric pulse sent by the electric pulse generating unit 310 according to the energy adjustment signal, thereby adjusting the pulse wave output by the energy adjustment device 300. energy, thereby adjusting the energy of the shock wave generated by the electrode pair 120.
  • the adjustment component 330 when the energy of the shock wave generated by the electrode pair 120 is low, by adjusting the adjustment component 330, the adjustment component 330 sends an energy adjustment signal with increased energy, the control unit 320 controls the pulse width of the shock wave emitted by the electrical pulse generation unit 310 to increase, and /Or, the pulse amplitude of the shock wave emitted by the electrical pulse generating unit 310 is controlled to increase, thereby increasing the energy of the shock wave generated by the electrode pair 120; when the energy of the shock wave generated by the electrode pair 120 is relatively high, the adjustment component 330 is adjusted.
  • the component 330 sends an energy adjustment signal with reduced energy, and the control unit 320 controls the pulse width of the high-voltage electric pulse sent by the electric pulse generating unit 310 to decrease, and/or controls the pulse amplitude of the high-voltage electric pulse sent by the electric pulse generating unit 310.
  • the value decreases, thereby reducing the energy of the shock wave generated by the electrode pair 120 .
  • the electrode pair emits a shock wave in the balloon under the control of the control unit, and the shock wave acts on the target tissue.
  • the control unit 320 controls the electrode pair 120 to send high-voltage electrical pulses to the balloon 110 .
  • a short-term high-voltage discharge can impact and fragment the calcified material in the superficial and deep diseased blood vessels, causing the blood vessels to be moderately softened, thereby significantly improving the compliance of the blood vessels.
  • the energy generated by the electrode pair 120 is adjusted according to the demand to avoid the problem that the energy generated by the electrode pair 120 is low or high, resulting in poor therapeutic effect, or causing damage to the patient's vascular intima.
  • the step of adjusting the pulse width and pulse amplitude of the high-voltage electric pulse emitted by the electric pulse generating unit according to the energy adjustment signal includes:
  • Step a Determine the target energy value according to the energy adjustment signal, and adjust the pulse width according to the first ratio according to the target energy value. For example, when the energy needs to be increased by 10%, the first proportion is a%, and the energy increase proportion obtained by adjusting according to the first proportion a% is A%, and A% is not greater than 10%. Optionally, A% can be 0.
  • the adjustment methods for energy reduction and energy increase are similar and will not be described in detail.
  • Step b Adjust the pulse amplitude according to the second ratio according to the target energy value.
  • the second proportion is b%
  • the energy increase proportion obtained by adjusting according to the second proportion b% is B%
  • B% is not greater than 10%.
  • B% can be 0.
  • the specific values of the first ratio and the second ratio can be determined based on the actual situation, for example, based on the circuit structure and circuit parameters, or based on the most appropriate voltage amplitude and energy corresponding to the physical structure of the balloon component.
  • the sum of the energy value of the pulse width adjusted according to the first ratio and the energy value of the pulse amplitude adjusted according to the second ratio is equal to the target energy value.
  • the sum of the energy increase ratio A% obtained by adjusting according to the first ratio a% and the energy increase ratio B% obtained by adjusting the second ratio b% is equal to an energy increase of 10%.
  • the target voltage amplitude and target pulse width corresponding to the energy adjustment signal determines the target voltage amplitude and target pulse width corresponding to the energy adjustment signal according to the pre-stored relationship between the energy value, voltage amplitude and pulse width of the energy adjustment signal; or, according to the pre-stored energy adjustment signal
  • the corresponding relationship between energy value, voltage amplitude and pulse width determines the first ratio and the second ratio.
  • the energy passing through in a short time (0.1us to 2us) can be approximately equivalent to:
  • E is the energy value of the high-voltage shock wave output by the shock wave generating unit
  • U is the voltage amplitude of the high-voltage shock wave
  • is the pulse width of the high-voltage shock wave
  • R is the internal resistance of the discharge path after balloon breakdown and the internal resistance of the discharge line. The sum of obstacles. After the physical structure of the balloon component is determined, the internal resistance value after each shock wave breakdown discharge has a small difference, and the difference can be It can be ignored. At this time, R can be regarded as a fixed value, and the specific value of R can be determined according to the structure of the balloon component.
  • the coefficient k 1 is the square root of the reciprocal of the pulse width ⁇ .
  • Table 1 is the corresponding relationship between the coefficient k 1 and the pulse width ⁇ .
  • Table 1 only lists the coefficient k 1 corresponding to part of the pulse width ⁇ .
  • Actual pulse widths include, but are not limited to, the values in Table 1.
  • the coefficient k 2 is the reciprocal of the square of the voltage amplitude.
  • Table 2 is the corresponding relationship between the coefficient k 2 and the voltage amplitude.
  • Table 2 only lists the coefficient k 2 corresponding to some voltage amplitudes. Actual voltage amplitudes include but are not limited to the values in Table 2.
  • the voltage amplitude and pulse width range of the shock wave are determined.
  • the voltage amplitude and pulse width of the shock wave need to be adjusted within a reasonable range acceptable to the balloon component.
  • a reasonable voltage amplitude can be determined first to determine the coefficient k 2 and then calculate correct Determine the second ratio of the corresponding voltage amplitude.
  • first determine a reasonable pulse width to determine the coefficient k 1 and then calculate and determine the first ratio of the corresponding pulse width.
  • the energy value of the pulse width obtained by adjusting according to the first ratio is the same as the energy value according to the second ratio.
  • the energy value of the pulse amplitude obtained by the proportional adjustment can act on the electrode pair built into the balloon to generate a shock wave that meets the target energy value.
  • Figure 21 is a flow chart of a control method for a medical device provided in Embodiment 13 of the present invention.
  • the control method for a medical device includes: adjusting an adjustment component.
  • S201 Determine the energy value of the shock wave received by the previous balloon 110 based on the voltage value and/or current value of the previous electrical pulse generating unit 310. Determine the generation of the electrode pair 120 by the pulse width and/or pulse amplitude of the received shock wave. Whether the shock wave meets the needs.
  • S202 Determine whether the energy value of the previous shock wave is consistent with the energy value corresponding to the preset energy adjustment signal. If they are inconsistent, adjust the adjustment component 330; specifically, the preset energy adjustment signal is, for example, the energy adjustment signal output by the adjustment component 330. , when the energy value of the current shock wave is inconsistent with the energy value corresponding to the preset energy adjustment signal, it indicates that the energy of the shock wave generated by the electrode pair 120 is too low or too high, and does not meet the energy adjustment requirements of the shock wave during the current decomposition of calcified tissue. Make energy adjustments.
  • the control unit 320 adjusts the pulse amplitude of the electrical pulse generating unit 310. Specifically, after the control unit 320 receives the energy adjustment signal, if the voltage value output by the electrical pulse generation unit 310 meets the target voltage amplitude corresponding to the energy adjustment signal, there is no need to adjust the pulse amplitude of the electrical pulse generation unit 310.
  • the control unit 320 will adjust the pulse amplitude of the electrical pulse generating unit 310 to adjust the pulse wave output by the electrical pulse generating unit 310 energy, outputs a shock wave with a pulse amplitude within a preset amplitude range, and acts on the target tissue to achieve decomposition of calcified tissue.
  • S2032 collect the current signal of the electrical pulse generating unit 310 this time, and control the current signal of the electrical pulse generating unit 310 through the control unit 320.
  • the control unit 320 is configured as The energy adjustment signal sends a pulse command to the electrical pulse generating unit 310, and the electrical pulse generating unit 310 is adjusted to send out a shock wave with a pulse width that meets the preset pulse width range, and acts on the target tissue to achieve decomposition of calcified tissue.
  • steps S2031 and S2032 can be adjusted, for example, S2031 is before or after S2032, or steps S2031 and S2032 are performed only one step, which is not limited here.
  • the method may also The method includes: detecting and controlling the voltage value of the electrical pulse generating unit 310 this time, and detecting the current value of the electrical pulse generating unit 310 this time, and adjusting the output pulse width. Specifically, after the adjustment component 330 sends out the energy adjustment signal, it detects the voltage value of the electrical pulse generation unit 310 this time, and adjusts the electrical pulse according to the voltage value of the electrical pulse generation unit 310 this time and the target voltage amplitude corresponding to the energy adjustment signal. The voltage value output by the generating unit 310 until the voltage value output by the electrical pulse generating unit 310 meets the target voltage amplitude.
  • IVL is an innovative breakthrough in the field of interventional therapy. Whether it is left main disease, angular disease, incomplete stent expansion, annular, eccentric calcification, superficial or deep calcification, etc., IVL has shown great advantages in clinical application. In the clinical treatment of arterial vascular calcification lesions, it has been increasingly recognized and promoted by the medical system.
  • the system further includes an IVL system including a balloon 110.
  • the balloon 110 is provided with an electrode pair 120 that generates shock waves in the balloon.
  • the IVL system is also provided with an energy adjustment device that responds to the insertion state and/or movement of the balloon.
  • the energy adjustment device includes an electrical pulse generation unit 310, a control unit 320 and an adjustment component 330;
  • the adjusting component is configured to obtain the pulse width and/or pulse amplitude of the high-voltage electric pulse emitted by the electric pulse generating unit according to the energy adjustment requirement and adjusted by the control unit.
  • the high-voltage electric pulse is emitted in the balloon through the electrode pair. Shock wave, acting on target tissue.
  • the first end of the detection unit of the IVL system is connected to the detection end of the electrical pulse generation unit, and the second end of the detection unit is connected to the control unit.
  • the detection unit is used to collect the current signal of the electrical pulse generation unit, and the control unit is used to receive the current signal. And obtain the duration of the shock wave that has occurred, as well as the duration of the target pulse width corresponding to the energy adjustment signal used by the control unit, determine the duration of the pulse output of the electrical pulse generation unit, and issue a pulse command to the electrical pulse generation unit based on the duration of the pulse output , to adjust the pulse width.
  • the IVL system also includes an inverter boost unit and a power supply unit.
  • the power supply unit is connected to the input end of the electrical pulse generating unit through the inverter boost unit.
  • the inverter boost unit is used to boost the low voltage output by the power supply unit to high voltage.
  • a system that can adjust the shock wave energy value received by the balloon is designed to adapt to the situation where the shock wave energy value received by the balloon needs to be adjusted for different degrees of calcification during clinical treatment, making IVL clinical treatment and application safer. , Efficient.
  • the IVL system of this embodiment is an application of a balloon whose shock wave energy can be adjusted segmentally and/or continuously to impact calcified tissue in arterial vascular tissue. It can be used in the clinical treatment of the IVL system and related to arterial vascular calcification lesions.
  • the output energy of the shock wave power supply is adjusted in segments and/or continuously to control the output shock wave energy and improve clinical adaptability.
  • the operator can adjust the pulse width and/or pulse amplitude of the output high-voltage electric pulse according to the patient's actual arterial calcification lesions and the treatment effect, so that the generated shock wave pulse energy can effectively break and loosen calcified substances.
  • the technical principle of the present invention is not limited to the energy adjustment of the shock wave balloon.
  • a system if a system has a need for shock wave energy adjustment, it includes a shock wave sending module, a shock wave receiving module, and an energy adjustment device.
  • One end of the energy adjustment device is connected
  • the other end of the shock wave sending module is connected to the shock wave receiving module.
  • the energy adjustment device is used to monitor the energy adjustment needs of the shock wave receiving module, determine the energy adjustment signal of the energy adjustment device, and adjust the shock wave energy of the shock wave sending module according to the energy adjustment signal to act on the shock wave reception.
  • the module generates shock wave pulse energy to effectively break up and loosen calcified materials.

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Abstract

本发明公开了一种医疗装置及其控制方法、IVL系统及能量调节系统。其中,医疗装置包括:球囊、能量调节装置以及设置于球囊内的电极对;能量调节装置用于响应球囊在接入状态和/或移除状态下的能量调节需求,能量调节装置包括电脉冲发生单元、控制单元以及调节部件,调节部件与控制单元连接,控制单元与电脉冲发生单元的控制端连接,电脉冲发生单元的输出端与电极对连接;调节部件用于根据能量调节需求发出能量调节信号,控制单元用于接收能量调节信号,根据能量调节信号调节电脉冲发生单元发出的高压电脉冲的脉冲宽度和/或脉冲幅值,通过电极对产生合适能量值的冲击波作用于钙化组织,同时减小冲击波能量过高或过低对血管内膜造成的损害或影响。

Description

医疗装置及其控制方法、IVL系统及能量调节系统 技术领域
本发明涉及医疗器械技术领域,尤其涉及一种医疗装置及其控制方法及IVL系统、及能量调节系统。
背景技术
动脉血管内碎石术(Intravascular Lithotripsy,IVL)是临床治疗动脉血管钙化病变的一项新技术。目前,实现IVL技术,需要将冲击波脉冲电源与球囊连接,冲击波脉冲电源输出间歇性的高压激励高压电脉冲,作用于球囊内的微型高压放电装置,在高压电脉冲激励下,球囊内置电极对短时间内高压放电,使得球囊内生理盐水与造影剂的部分混合溶液,被瞬间汽化,产生非聚焦、圆周方向的脉冲式声压波,声压波穿过不同的介质时其作用效果与介质的密度呈正相关,固体钙化的病变组织为冲击波产生作用的目标组织,其密度远远大于正常的组织,声压波主要选择性作用于引起动脉血管病变的固体钙化物质,而对密度较小的接近于生理盐水的人体血管、肌肉等软组织,几乎无损穿过而不被吸收,使得目标组织的钙化物质通过冲击波的冲击实现目标组织钙化物破裂和松解。
但是现有的IVL系统中,只能输出固定脉宽、固定电压幅值的脉冲波,即输出的是能量固定的脉冲波。在某些病患情况下,能量过高,会对血管内膜造成潜在损伤影响术后恢复。能量过低,钙化病变碎裂效果不明显,影响治疗效果。在高压窄脉冲应用方面,调节脉冲的能量一般有两种方式:调节脉冲幅值以及调节脉冲宽度。1、调节脉冲幅值:当冲击波球囊结构固定后,脉冲幅值越高,通过的电流越大,相应的大电流、高电压功率器件选择范围越窄,没有合适器件可供选择。2、脉冲宽度调节:较适宜的冲击波脉冲宽度范围大约0.3us~2us,时间很短,在这个时间范围内进行连续调节,大部分逻辑和模拟器件速度达不到,程序和算法上较难实现,即控制芯片难以实现在适宜的冲击波脉冲宽度范围内,精准调节脉冲宽度。
发明内容
本发明提供了一种医疗装置及其控制方法及IVL系统及能量调节系统,以实现输出能量可调的脉冲冲击波,使得避免作用于目标组织的冲击波能量偏高或偏低而造成的损害或者影响。
根据本发明的一方面,提供了一种医疗装置,医疗装置包括:
球囊,
能量调节装置,能量调节装置包括电脉冲发生单元、控制单元以及调节部件,调节部件与控制单元连接,控制单元与电脉冲发生单元的控制端连接,电脉冲发生单元的输出端与电极对连接;
能量调节装置被配置为响应于球囊在接入状态和/或移除状态下的能量调节需求,调节部件根据能量调节需求发出能量调节信号用于输出至控制单元,控制单元根据接收到的能量调节信号控制电脉冲发生单元发出的冲击波的脉冲宽度和/或脉冲幅值,
以及,
电极对,电极对设置于球囊中,能量调节装置输出的高压电脉冲通过电极对在球囊内产生冲击波,并作用于目标组织。
可选地,控制单元被配置为根据电脉冲发生单元的电压值以及能量调节信号对应的目标电压幅值调节电脉冲发生单元发出满足预设幅值区间范围的脉冲幅值的冲击波,根据能量调节信号对应的目标电压幅值调节电脉冲发生单元发出的脉冲幅值,使之等于目标电压幅值或接近于目标电压幅值,或者保持在脉冲幅值与目标脉冲幅值的误差范围在一定范围内,优选地,如±5%等。
当电脉冲发生单元的电压值对应的脉冲幅值与能量调节信号对应的目标电压幅值差值超出误差范围时,优选地,如±5%等,调节部件根据目标电压幅值与当前的电压值的差值发出能量调节信号,控制单元用于接收能量调节信号,以调节电脉冲发生单元发出满足预设幅值区间范围的脉冲幅值的高压电脉冲作用于电极对,在球囊内产生冲击波作用于目标组织,其中,预设幅值区间范围的幅值至少包括目标电压幅值。
可选地,控制单元被配置为根据电脉冲发生单元的电流信号的电流响应延时时长及电流采集时长,确定已产生的有效的冲击波时长,以及根据能量调节信号对应的目标脉冲宽度的时长,确定电脉冲发生单元的脉冲输出的时长,并根据计算得出的脉冲输出的时长向电脉冲发生单元发出脉冲指令,控制单元通过脉冲指令调节电脉冲发生单元发出满足预设脉宽区间范围的脉冲宽度的冲击波,其中,预设脉宽区间范围的脉宽至少包括脉冲输出的时长。
可选地,医疗装置还包括检测单元,检测单元的第一端与电脉冲发生单元的检测端连接,检测单元的第二端与控制单元连接,检测单元被配置为采集本次电脉冲发生单元的电流信号,控制单元用于接收电流信号并基于电流信号得到冲击波发生时刻。
可选地,调节电脉冲发生单元发出满足预设幅值区间范围的脉冲幅值的高压电脉冲 或目标能量值所对应的脉冲幅值的高压电脉冲包括:当电脉冲发生单元的电压值对应的脉冲幅值不满足能量调节信号对应的目标电压幅值时,调节部件根据目标电压幅值与当前电压值的差值发出能量调节信号,控制单元用于接收能量调节信号,以调节电脉冲发生单元发出满足预设幅值区间范围的脉冲幅值的高压电脉冲,作用于电极对,在球囊内产生冲击波作用于目标组织。
可选地,通过脉冲指令调节电脉冲发生单元发出满足预设脉宽区间范围的脉冲宽度的高压电脉冲包括:采集电脉冲发生单元的电流信号,当电脉冲发生单元的电流值大于预设电流阈值时,确定电流信号对应的已发生冲击波时长阈值,时长阈值包括电流采集时长以及电流响应延时时长;
当能量调节信号对应的目标脉冲宽度的时长与时长阈值的差异值满足预设差异值时,控制单元控制电脉冲发生单元发出脉冲指令,调节电脉冲发生单元发出满足预设脉宽区间范围的脉冲宽度的高压电脉冲,作用于电极对,在球囊内产生冲击波,作用于目标组织。
其中,预设差异值包括预设差值范围,和/或,预设差异值包括预设比值范围。
可选地,所述控制单元用于当所述检测单元采集到所述电流信号时,根据所述调节部件设置的所述能量调节需求对应的脉宽调节需求,切断所述电脉冲发生单元电脉冲发生单元产生的脉冲信号。
可选地,控制单元包括MCU、DSP、FPGA中的至少一种;和/或,医疗装置还包括逆变升压单元和电源单元,电源单元通过逆变升压单元与电脉冲发生单元的输入端连接,逆变升压单元用于将电源单元输出的低压升至高压,电脉冲发生单元输出的脉冲的电压大于700V。
可选地,装置还包括逆变升压单元,逆变升压单元的输出端与电脉冲发生单元的输入端电连接,控制单元与逆变升压单元的控制端电连接,控制单元用于在需要调节脉冲幅值时,控制逆变升压单元调节脉冲幅值。
可选地,控制单元用于当检测单元采集到电流信号时,根据调节部件所设置的目标能量冲击波所对应的脉宽需求或能量调节需求,切断电脉冲发生单元产生的脉冲信号。
可选地,调节部件包括触摸屏、按键、电位器和编码器中的至少一种;或者,医疗装置还包括手柄和主机,调节部件包括触摸屏、按键、电位器和编码器中的至少一种,调节部件设置于手柄或者主机上;
其中,按键包括能量增加键以及能量减小键,能量增加键或者能量减少键实现调节 部件的分段调节;或者,电位器或者编码器包括旋钮,旋钮实现调节部件的无级调节;或者,触摸屏包括能量分段调节按钮或者能量无级调节按钮。
可选地,医疗装置包括分压单元,分压单元的一端与电脉冲发生单元的输出端电连接,分压单元的另一端作为输出端与设置于球囊中的电极对连接,用于输出经过分压和/或限流后的球囊在持续击穿状态下的脉冲宽度和/或脉冲幅值,实现球囊在持续击穿状态下接收低能量冲击波。
根据本发明的另一方面,提供了一种医疗装置的控制方法,用于实现球囊内置电极对,在电脉冲发生单元输出的高压电脉冲的激励下,产生的冲击波能量的调节,采用本发明任意实施例的医疗装置,控制方法包括:
调节调节部件,调节部件用于发出能量调节信号;
控制单元接收能量调节信号,并根据能量调节信号调节电脉冲发生单元发出的高压电脉冲的脉冲宽度和/或脉冲幅值;
电极对在控制单元的控制下,控制电脉冲发生单元发出的高压电脉冲,在球囊内产生冲击波,冲击波作用于目标组织。
可选地,调节调节部件之前,方法还包括:
根据前次电脉冲发生单元输出的高压电脉冲的电压值和/或电流值,确定前次球囊内产生的冲击波的能量值;
判断前次冲击波的能量值与预设能量调节信号对应的能量值是否一致,若不一致,则调节调节部件;以及,
在调节部件发出能量调节信号步骤之后,还可以包括:
检测和控制本次电脉冲发生单元的电压值,以及检测本次电脉冲发生单元的电流值,调节输出的脉冲宽度。
可选地,根据能量调节信号调节电脉冲发生单元发出的冲击波的脉冲宽度和/或脉冲幅值的步骤包括:
根据能量调节信号确定目标能量值,根据目标能量值按照第一比例调节脉冲宽度;
根据能量调节信号确定目标能量值,根据目标能量值按照第二比例调节脉冲幅值;
其中,按照第一比例调节得到的脉冲宽度与按照第二比例调节得到的脉冲幅值,发出的高压电脉冲的能量,等于目标能量值。
其中,按照第一比例调节得到的脉冲宽度的能量值与按照第二比例调节得到的脉冲幅值的能量值均可作用于球囊内置的电极对,产生满足目标能量值的冲击波。
根据本发明的另一方面,提供了一种IVL系统,包括球囊,球囊内设置有高压电脉冲作用下,能够击穿放电,产生冲击波作用于球囊内置的电极对,IVL系统内还设置有能量调节装置,响应于球囊在接入状态和/或移除状态下的能量调节需求,能量调节装置包括电脉冲发生单元、控制单元以及调节部件;
工作状态下,调节部件被配置为获取根据能量调节需求并通过控制单元调节电脉冲发生单元发出的高压电脉冲的脉冲宽度和/或脉冲幅值,高压电脉冲作用于电极对,在球囊内产生冲击波,作用于目标组织。
可选地,IVL系统还包括:检测单元,检测单元的第一端与电脉冲发生单元的检测端连接,检测单元的第二端与控制单元连接,检测单元用于采集电脉冲发生单元的电流信号,控制单元用于接收电流信号并得到冲击波发生时刻,以及控制单元用于根据能量调节信号对应的目标脉冲宽度的时长,确定电脉冲发生单元的脉冲输出的时长,并根据脉冲输出的时长向电脉冲发生单元发出脉冲指令,以调节脉冲宽度。
可选地,IVL系统还包括:逆变升压单元和电源单元,电源单元通过逆变升压单元与电脉冲发生单元的输入端连接,逆变升压单元用于将电源单元输出的低压升至高压。
根据本发明的另一方面提供了一种冲击波能量调节系统,其特征在于,系统包括:冲击波发出模块和冲击波接收模块,能量调节装置,
其中,能量调整装置的一端连接冲击波发出模块,另一端与冲击波接收模块连接,能量调节装置用于监测冲击波接收模块的能量调节需求,确定能量调节装置的能量调节信号,根据能量调节信号调节冲击波发出模块的冲击波能量作用于冲击波接收模块。
本发明实施例的技术方案,通过调节调节部件,调节部件发出能量调节信号,控制单元接收到能量调节信号后,据能量调节信号调节电脉冲发生单元发出的冲击波的脉冲宽度和/或脉冲幅值,从而调节能量调节装置输出的脉冲波的能量,进而调节电极对产生的冲击波的能量。因此,在治疗时,可以根据实际需求通过调节高压电脉冲的脉冲宽度和/或脉冲幅值,以调节电极对产生的能量,避免电极对产生的冲击波的能量较低,导致治疗效果较差的问题;也可以避免电极对产生的冲击波的能量较高,对患者血管内膜造成损伤的问题,从而实现了输出能量可调的脉冲冲击波,并减小冲击波能量过高对患者血管内膜造成的损害。
此外,与直接根据需要的电压幅值调节脉冲波的电压值相比,本实施例通过根据实际的能量调节需求产生可调节的能量调节信号,进行电压幅值和/或脉冲宽度的调节,可以输出合适能量值的冲击波作用于目标钙化组织,有利于提升用户体验,使得治疗更加 安全、可靠。而且,对冲击波的能量进行调节可根据病患动脉血管钙化病变的实际情况,调节冲击波输出能量至合适能量值,不仅可以增大冲击波的能量,还可以降低冲击波的能量。
此外,在各类动脉血管钙化引起的血管狭窄、堵塞等临床治疗中,实际出现在病变处的钙化物呈松软、不规则状态,通过冲击波球囊进行低能量的冲击波疏通和冲击,可以将钙化物质振动平整,将凹凸不平的组织平整疏通,从而解决血管狭窄堵塞问题,使得某些凹凸不平的钙化组织经过低能量冲击波振动疏通,无需放置介入支架,解决动脉血管狭窄、堵塞等问题,具备积极的临床应用意义和效果。
此外,与持续的高压冲击波相比,本实施例提到的分压单元在冲击波球囊的可靠击穿的同时,又有效减小了冲击波球囊的击穿电流,从而产生冲击钙化病变组织所需较低能量的冲击波;球囊电极击穿后,分压单元承载的电压使得球囊可以接收较低低能量的冲击波,球囊所接收的电压和/或流过的击穿电流,都降低到低能量需求对应的合适能量值,避免了冲击波球囊内置电极的烧灼、损伤,极大提高了IVL临床治疗的安全性、可靠性。
此外,可调节的能量调节信号对应于进行电压幅值和/或脉冲宽度的调节,作用于钙化的目标组织,合适的能量值进一步保证了IVL手术的安全、可靠。
应当理解,本部分所描述的内容并非旨在标识本发明的实施例的关键或重要特征,也不用于限制本发明的范围。本发明的其它特征将通过以下的说明书而变得容易理解。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例一提供的一种医疗装置的结构示意图;
图2是本发明实施例一提供的一种冲击波的波形图;
图3是本发明实施例一提供的另一种冲击波的波形图;
图4是本发明实施例一提供的又一种冲击波的波形图;
图5是本发明实施例一提供的又一种冲击波的波形图;
图6是本发明实施例一提供的又一种冲击波的波形图;
图7是本发明实施例一提供的又一种冲击波的波形图;
图8是本发明实施例一提供的又一种冲击波的波形图;
图9是本发明实施例二提供的一种医疗装置的电路结构示意图;
图10是本发明实施例三提供的一种医疗装置的电路结构示意图;
图11是本发明实施例四提供的一种医疗装置的电路结构示意图;
图12是本发明实施例五提供的一种医疗装置的电路结构示意图;
图13是本发明实施例六提供的一种医疗装置的电路结构示意图;
图14是本发明实施例七提供的一种医疗装置的电路结构示意图;
图15是本发明实施例八提供的一种医疗装置的电路结构示意图;
图16是本发明实施例四提供的一种医疗装置的结构示意图;
图17是本发明实施例九提供的又一种医疗装置的电路结构示意图;
图18是本发明实施例十提供的又一种医疗装置的电路结构示意图;
图19是本发明实施例十提供的又一种医疗装置的低能量冲击波的电路结构示意图;
图20是本发明实施例十一提供的一种医疗装置的控制方法的流程图;
图21是本发明实施例十二提供的一种医疗装置的控制方法的流程图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分的实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本发明保护的范围。
需要说明的是,本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
于本申请相关实施例中,预设幅值区间范围的脉冲幅值和/或预设脉宽区间范围的脉冲宽度对应的冲击波能量,可以根据目标组织的钙化程度,预设治疗效果、钙化病变的实际情况等等进行设定,例如地,为本申请中涉及的预设能量调节信号对应的能量值、 合适能量值,预定能量及其能量区间等,本领域技术人员也可根据实际需要进行设定,在此不做限定,于本申请相关实施例中,所涉及的冲击波应当至少包括应用于IVL系统的包括升压冲击波,本领域技术人员也可根据实际需要临床应用进行设定,在此不做限定。
实施例一
图1是本发明实施例一提供的一种医疗装置的结构示意图。参考图1,医疗装置例如可以是一种支持作用于目标组织的冲击波能量调节的球囊导管。医疗装置包括:球囊组件100以及能量调节装置300。球囊组件100包括球囊110以及电极对120,电极对120设置于球囊110中。球囊110以及电极对120的技术方案可参考现有技术,本文不再赘述。
能量调节装置300被配置为响应于球囊在接入状态和/或移除状态下的能量调节需求,能量调节装置进一步包括电脉冲发生单元310、接收能量调节信号的控制单元320以及调节部件330,调节部件330被配置为通过控制单元320调节电脉冲发生单元发出的冲击波的脉冲宽度和/或脉冲幅值,
以及,
电极对,电极对设置于球囊中,能量调节装置输出的高压电脉冲通过电极对在球囊内产生冲击波,并作用于目标组织。
控制单元被320配置为根据电脉冲发生单元310的电压值以及能量调节信号对应的目标电压幅值调节电脉冲发生单元310发出满足预设幅值区间范围的脉冲幅值的冲击波。
调节部件330与控制单元320连接,控制单元320与电脉冲发生单元310的控制端连接,电脉冲发生单元310的输出端与电极对120连接。其中,调节部件330用于根据能量调节需求发出能量调节信号,控制单元320用于接收能量调节信号,并根据能量调节信号调节电脉冲发生单元310发出的冲击波的脉冲宽度和/或脉冲幅值。具体地,调节部件330例如可以是发出增加能量的调节信号,也可以是发出减小能量的调节信号。更具体的,调节部件330例如可以是发出增加/减小脉冲宽度的信号,或者是发出增加/减小脉冲幅值的信号,或者是同时增加/减小脉冲幅值和脉冲宽度的信号,如此实现冲击波能量的改变,使得消除或者降低冲击波能量偏高或偏低而造成的损害或者影响。在控制单元的控制下,电脉冲发生单元310可以输出能量可调的高压电脉冲至球囊组件100中的电极对120,电极对120击穿放电,产生对应能量的高压冲击波,在球囊110内,短 时间的高压放电使得球囊110内的生理盐水与造影剂的部分混合溶液,在高压击穿放电的作用下被瞬间汽化,产生非聚焦、圆周方向的脉冲式声压波,声压波主要作用于引起动脉血管病变的固体钙化物质,而对密度接近于生理盐水的人体血管、肌肉等软组织,几乎无损穿过,从而可以安全地冲击并碎裂浅表与深层病变血管处的钙化物质,使得钙化物破裂和松解,血管得到适度软化,从而明显地改善血管顺应性,易于后续的支架或药物球囊的植入。
当电脉冲发生单元的电压值对应的脉冲幅值不满足能量调节信号对应的目标电压幅值时,调节部件根据目标电压幅值与当前电压值的差值发出能量调节信号,控制单元用于接收能量调节信号,以调节电脉冲发生单元发出满足预设幅值区间范围的脉冲幅值的冲击波,作用于目标组织,其中,预设幅值区间范围的幅值至少包括目标电压幅值。预设幅值区间范围可以设定为包括目标电压幅值在内的一个电压幅值区间,使之等于目标电压幅值或或接近于目标电压幅值,或者保持在脉冲幅值与目标脉冲幅值的误差范围在一定范围内,优选地,如±5%等。在该预设幅值区间范围内,电极对即容易击穿放电,产生冲击波,又不致电压幅值过高,对电极对造成明显损伤,或者电压幅值过低,难以击穿放电,无法产生冲击波,在此区间,可以安全可靠的产生冲击波,冲击并碎裂浅表与深层病变血管处的钙化物质,使得钙化物破裂和松解。
在一示范性实施例中,以增加能量为例,脉冲电压幅值过低时,球囊110内置电极对120不易击穿放电,甚至不能产生冲击波,无法作用于目标组织达不到治疗目的,因此当电极对120产生的冲击波的能量低于预定能量时,调节调节部件330,调节部件330发出能量增大的调节信号,控制单元320接收到能量调节信号后,控制单元320控制电脉冲发生单元310增大冲击波的脉冲宽度,和/或,控制单元320控制电脉冲发生单元310增大冲击波的脉冲幅值,从而增大电极对120产生的冲击波的能量。调节部件330调节信号,可以是控制单元320实现调节,也可以是手动实现调节。
在另一示范性实施例中,当电极对120产生的冲击波能量高于预定能量时,脉冲电压幅值过高时,球囊110内置的电极对120之间的绝缘易被击穿破坏,球囊110内置电极也容易造成烧灼等损伤,影响冲击波球囊正常使用寿命,从而影响手术治疗,此时调节调节部件330,调节部件330发出能量降低的能量调节信号,控制单元320接收到能量调节信号后,控制单元320控制电脉冲发生单元310减小冲击波的脉冲宽度,和/或,控制电脉冲发生单元310增大的冲击波的脉冲幅值,从而降低电极对120产生的冲击波的能量。如此,可以使得操作者在使用时,可以根据实际需求调节电极对120产生的冲 击波的能量,避免电极对120产生的能量较低,导致治疗效果较差的问题;也可以避免电极对120产生的能量较高,对患者血管内膜造成损伤的问题,从而实现了输出能量可调的脉冲冲击波,并减小冲击波能量过高对患者血管内膜造成的损害。
于本申请的一些实施例中冲击波的能量值调节可以由多种方式实现,示例性的,可以通过调节电压幅值调节冲击波的能量值,控制单元320被配置为根据电脉冲发生单元310的电压值以及能量调节信号对应的目标电压幅值调节电脉冲发生单元310发出满足预设幅值区间范围的脉冲幅值的冲击波。当电脉冲发生单元的电压值不满足能量调节信号对应的目标电压幅值时,控制单元320调节电脉冲发生单元310的脉冲幅值。具体地,控制单元320接收到能量调节信号后,如果电脉冲发生单元310输出的电压值满足能量调节信号对应的目标电压幅值时,则无需对电脉冲发生单元310的脉冲幅值进行调节。当电脉冲发生单元310输出的电压值不满足能量调节信号对应的目标电压幅值时,调节部件330根据目标电压幅值与当前电压值的差值发出能量调节信号,示范性地,获取差值的具体数值,当差值不趋近与0时,控制单元320就会调节电脉冲发生单元310的脉冲幅值,调节电脉冲发生单元310发出满足预设幅值区间范围的脉冲幅值的高压电脉冲,以调节电脉冲发生单元310输出的高压电脉冲的脉冲幅值,实现差值趋近于0,实现脉冲幅值的调节。
如图2所示,图2是本发明实施例一提供的一种冲击波的波形图,第一波形A11的电压幅值为V1,通过调节电压幅值,可以得到电压幅值为V2的第二波形A12,也可以得到电压幅值为V3的第三波形A13,第一波形A11、第二波形A12和第三波形A13的脉冲宽度均为d,即保持冲击波的脉冲宽度不变,调节冲击波的电压幅值,可以调节冲击波的能量,使得电脉冲发生单元310发出满足预设幅值区间范围的脉冲幅值的高压电脉冲。如图3所示,图3是本发明实施例一提供的另一种冲击波的波形图,冲击波发生单元输出的冲击波可以为矩形脉冲波的适度变形,第四波形A21的电压幅值为V1,通过调节电压幅值,可以得到电压幅值为V2的第五波形A22,也可以得到电压幅值为V3的第六波形A23,第四波形A21、第五波形A22和第六波形A23的脉冲宽度均为d,即保持冲击波的脉冲宽度不变,调节高压电脉冲的电压幅值,以实现冲击波能量的调节。
示例性的,可以通过调节高压电脉冲的脉冲宽度调节冲击波的能量值,在球囊110内的电极对120击穿放电时,产生冲击波脉冲,控制单元320被配置为根据电脉冲发生单元310的电流信号的时长脉冲输出的时长以及能量调节信号对应的目标脉冲宽度的时长调节电脉冲发生单元310发出的高压电脉冲的脉冲宽度的脉冲指令,通过脉冲指令调 节高压电脉冲的脉冲宽度,调节电脉冲发生单元310发出满足预设脉宽区间范围的脉冲宽度的冲击波,其中,预设脉宽区间的脉宽至少包括脉冲输出的时长。如图4所示,图4是本发明实施例一提供的又一种冲击波的波形图,第七波形A31的脉冲宽度为d1,通过调节脉冲宽度,可以得到脉冲宽度为d2的第八波形A32,也可以得到脉冲宽度为d3的第九波形A33,第七波形A31、第八波形A32和第九波形A33的电压幅值均为Vc,即保持高压电脉冲的电压幅值不变,调节高压电脉冲的脉冲宽度,可以调节电极对所产生的冲击波的能量。如图5所示,图5是本发明实施例一提供的又一种冲击波的波形图,冲击波发生单元输出的冲击波可以为矩形脉冲波的适度变形,第十波形A41的脉冲宽度为d1,通过调节脉冲宽度,可以得到脉冲宽度为d2的第十一波形A42,也可以得到脉冲宽度为d3的第十二波形A43,第十波形A41、第十一波形A42和第十二波形A43的电压幅值均为Vc,即保持高压电脉冲的电压幅值不变,调节高压电脉冲的脉冲宽度,以实现冲击波能量的调节,调节电脉冲发生单元发出满足预设脉宽区间范围的脉冲宽度的高压电脉冲,预设脉宽区间范围可以设定为包括目标脉宽脉冲输出的脉宽在内的一个脉宽区间,在该脉宽区间内可以安全地冲击并碎裂浅表与深层病变血管处的钙化物质,使得钙化物破裂和松解。
于本实施例中冲击波的能量值调节可以由多种方式实现,示例性的,可以通过调节电压幅值,同时调节脉冲宽度,实现调节冲击波的能量值。如图6所示,图6是本发明实施例一提供的又一种冲击波的波形图,第十三波形A51的脉冲宽度为d1、电压幅值为V1,通过调节脉冲宽度和电压幅值,可以得到脉冲宽度为d2、电压幅值为V2的第十四波形A52,也可以得到脉冲宽度为d3、电压幅值为V3的第十五波形A33。如图7所示,图7是本发明实施例一提供的又一种高压电脉冲的波形图,电脉冲发生单元输出的高压电脉冲可以为矩形脉冲波的适度变形,第十六波形A61的脉冲宽度为d1、电压幅值为V1,通过调节脉冲宽度和电压幅值,可以得到脉冲宽度为d2、电压幅值为V2的第十七波形A62,也可以得到脉冲宽度为d3、电压幅值为V3的第十八波形A63。球囊110内的电极对120击穿放电时,产生脉冲冲击波,在脉冲电压幅值一定时,脉冲宽度增加,产生的冲击波能量增加,脉冲宽度减小,产生的冲击波能量减小,即本申请一实施例中,可以通过保持高压电脉冲的电压幅值不变,调节高压电脉冲的脉冲宽度,以实现冲击波能量的调节。
于本实施例中冲击波的能量值调节可以由多种方式实现,示例性的,如图8所示,图8是本发明实施例一提供的又一种冲击波的波形图。冲击波发生单元输出的冲击波可 以为矩形波,即图8中的第一冲击波B1,或者矩形波的适度变形,即第二冲击波B2和第三冲击波B3,从而实现冲击波能量的调节。矩形波的适度变形还可以为其他形式的冲击波,本实施例并不进行限定。
需理解,通过调节电压幅值调节冲击波的能量值与通过调节脉冲宽度调节冲击波的能量值的调节实现顺序不做限定,也可以根据实际需求只执行一种调节。
本实施例的技术方案,通过调节调节部件,调节部件发出能量调节信号,控制单元接收到能量调节信号后,据能量调节信号调节电脉冲发生单元发出的高压电脉冲的脉冲宽度和/或脉冲幅值,从而调节球囊内的电极对产生的冲击波的能量。因此,在治疗时,可以根据实际需求调节电极对产生的冲击波能量,避免电极对产生的冲击波能量较低,导致治疗效果较差的问题;也可以避免电极对产生的冲击波能量较高,对患者血管内膜造成损伤的问题,从而实现了输出能量可调的脉冲冲击波,并减小冲击波能量过高对患者血管内膜造成的损害。此外,与直接根据需要的电压幅值调节作用于电极对上的高压电脉冲的电压值相比,本实施例根据调节的能量调节信号,进行电压幅值和/或脉冲宽度的调节,可以得到需要的冲击波能量值,有利于提升用户体验。而且,对冲击波的能量进行调节,不仅可以增大冲击波的能量,还可以降低冲击波的能量,使得针对不同的冲击波球囊,及病患实际情况,实现冲击波电源的能量调节,使得脉冲电压幅值和脉冲宽度均具有一定的范围,可以最大限度的减小手术时间,同时降低球囊及电极对的损伤,保证冲击波球囊的正常使用寿命,手术安全、可靠性高。
实施例二
在前述实施例的基础上,图9是本发明实施例二提供的一种医疗装置的电路结构示意图。
优选的,参考图9,医疗装置还包括检测单元410,检测单元410的第一端与电脉冲发生单元310的检测端连接,检测单元410的第二端与控制单元320连接。医疗装置还包括检测单元410,检测单元410被配置为采集本次电脉冲发生单元310的电流信号,以及通过控制单元320控制本次电脉冲发生单元310的电流信号,当需要调节输出冲击波的能量时,控制单元320被配置为向电脉冲发生单元310发出能量调节的脉冲指令,调节电脉冲发生单元310发出的高压电脉冲的脉冲宽度,调节电脉冲发生单元310发出满足预设脉宽区间范围的脉冲宽度的高压电脉冲。
具体地,控制单元320被配置为根据电脉冲发生单元310的脉冲输出的时长以及能量调节信号对应的目标脉冲宽度的时长调节电脉冲发生单元310发出满足预设脉宽区间 范围的脉冲宽度的高压电脉冲。
具体地,检测单元410用于当需要调节脉冲宽度时,采集电脉冲发生单元310的电流信号。控制单元320用于接收电流信号。控制单元320用于基于电流信号得到冲击波发生时刻,以及控制单元320用于根据能量调节信号对应的目标脉冲宽度的时长,确定电脉冲发生单元310的脉冲输出的时长,并根据计算得出的脉冲输出的时长向电脉冲发生单元310发出脉冲指令。
在本申请的一些实施例中,当需要调节脉冲宽度时,检测单元410采集电脉冲发生单元310的电流信号。控制单元320接收电流信号,并根据电流信号的电流响应延时时长确定冲击波发生时刻,控制单元320根据能量调节信号对应的目标脉冲宽度,计算出对应的目标脉冲宽度的时长。控制单元320可以根据对应的目标脉冲宽度的时长与冲击波发生时刻(电流发生时刻),得到停止电脉冲发生单元310的高压电脉冲输出的时刻(即停止脉冲输出的时刻=目标脉冲宽度的时间+冲击波发生时刻或电流发生时刻),其中,目标脉冲宽度的时长为使用时所需要的脉冲宽度对应的时长。控制单元320根据电脉冲发生单元310输出脉冲的时长向高压电脉冲发声单元310发出脉冲指令,脉冲指令例如包括停止输出电流或停止输出高压电脉冲的指令,从而在电脉冲发生单元310输出脉冲的时长达到目标脉冲宽度的时长时,停止输出电流,使得电脉冲发生单元310输出的脉冲宽度满足目标脉冲宽度,调节电脉冲发生单元310发出满足预设脉宽区间范围的脉冲宽度的高压电脉冲,作用于球囊内的电极对,产生冲击波,作用于目标组织实现钙化组织松解。示例性的,电流信号的电流响应延时时长,例如为0.3~0.5us。较佳的,检测单元410例如为电流传感器或电流互感器,也可以是其他可以采集电流信号的器件。优选地,检测单元410例如为采用罗氏线圈电流传感器检测冲击波脉冲电流,与高压电脉冲隔离,安全性高,响应速度快。需理解,在球囊110中,电极对120之间产生高压脉冲波,高压脉冲波需要高压电脉冲信号,而在高压电脉冲信号中,脉冲输出宽度很难调节。
本申请的一些实施例中,通过设置检测单元410检测电流信号,控制单元320捕捉采集检测单元410的电流信号,进而根据电流信号的固有响应延时时长,进而确定冲击波发生时刻,进而计算出输出脉冲的时长,当电脉冲发生单元310的电流值大于预设电流阈值时,确定已发生有效的冲击波。具体地,当电脉冲发生单元310的电流值大于预设电流阈值时,表明电脉冲发生单元310输出了脉冲波,然后计算电流采集时长以及延时响应时长的和,确定已检测到的冲击波的时长,当能量调节信号对应的目标脉冲宽度 的时长与已发生冲击波的时长差异值满足预设差异值时,控制单元320向电脉冲发生单元310发出脉冲指令。具体地,脉冲指令例如为停止输出脉冲指令。控制单元320根据能量调节信号,可以确定能量调节信号对应的目标脉冲宽度的时长,当目标脉冲宽度的时长与已检测到的冲击波的时长的差异值满足预设差异值时,表明电脉冲发生单元310输出脉冲的时长满足目标脉冲宽度,控制单元320向电脉冲发生单元310发出脉冲指令,控制电脉冲发生单元310停止输出电流,从而使得电脉冲发生单元310输出的脉冲波的脉冲宽度与能量调节信号对应的目标脉冲宽度相符,实现了调节脉冲波的能量,将满足预设脉宽区间范围的脉冲宽度的高压电脉冲作用于电极对120,在球囊110内产生对应目标能量值的冲击波。
采集电脉冲发生单元310的电流信号,当电脉冲发生单元310的电流值大于预设电流阈值时,确定电流信号对应的冲击波时长阈值,时长阈值包括电流采集时长以及延时响应时长;当能量调节信号对应的目标脉冲宽度的时长与已检测到的冲击波时长阈值的差异值满足预设差异值时,控制单元调节电脉冲发生单元310发出满足预设脉宽区间范围的脉冲宽度的冲击波,作用于目标组织;其中,预设差异值包括预设差值范围,和/或,预设差异值包括预设比值范围。预设差值范围表示可以将目标脉冲宽度的时长与已检测到的冲击波时长阈值做差,例如差值接近0时,表明电脉冲发生单元310输出脉冲的时长满足目标脉冲宽度。预设比值范围可以计算目标脉冲宽度的时长与时长阈值的比值,例如比值接近1时,表明电脉冲发生单元310输出脉冲的时长满足目标脉冲宽度,解决了现有技术中,不能实现脉宽调节的技术问题。
优选地,在球囊导管中,电极对120之间在高压电脉冲的作用下,产生冲击波,冲击波脉冲宽度的调整,由控制单元320实现。控制单元320用于当检测单元410采集到电流信号时,根据目标脉冲宽度,及电流信号的响应时长,计算电脉冲发生单元310产生的脉冲信号的延时切断时长。即,当控制单元320一旦检测到有电流信号发生时,根据调节部件330设置的能量调节需求对应的脉宽调节需求,即根据目标脉冲宽度与电流检测信号响应时长差值,控制单元320延时切断电脉冲发生单元310停止输出电流,停止电脉冲发生单元310产生的脉冲信号。可以理解的,在忽略控制单元320的控制延迟时间,在理想的情况下,目标脉冲宽度的时间=电流信号的响应时长+延时切断时长。如此,可以实现微秒级别内的脉冲宽度的调节。优选地,脉冲宽度调节范围可以为0.5us~1.5us。
优选地,参考图9,控制单元320包括MCU、DSP、FPGA中的至少一种。具体地, MCU为微控制单元(Microcontroller Unit),DSP为数字信号处理(Digital Signal Process),FPGA为现场可编程逻辑门阵列(Field Programmable Gate Array),控制单元320可以由MCU、DSP或FPGA实现,也可以由MCU、DSP和FPGA这三类芯片任意组合功能的芯片实现,实现控制功能。
优选的,如图9所示,医疗装置还包括逆变升压单元420和电源单元430。电源单元430通过逆变升压单元420与电脉冲发生单元310的输入端连接。电源单元430提供电源电压,逆变升压单元420用于将电源单元430输出的低压升至高压,电脉冲发生单元310输出的脉冲的电压大于700V,从而便于电极对120产生高压冲击波。优选的,脉冲的电压在700V~5000V之间。更佳的,脉冲的电压大于1000V。更近一步的,脉冲的电压大于1500V。
优选地,逆变升压单元420用于在球囊接入或移除时将电源单元输出的低压升至高压或电源单元输出的高压降至低压,逆变升压单元420的输出端与电脉冲发生单元的输入端电连接,控制单元与逆变升压单元的控制端电连接,控制单元用于在需要调节脉冲幅值时,控制逆变升压单元调节脉冲幅值。
优选地,参考图9,医疗装置还包括逆变升压单元420,逆变升压单元420的输出端与电脉冲发生单元310的输入端电连接,控制单元320与逆变升压单元420的控制端电连接,控制单元320用于在需要调节脉冲幅值时,控制逆变升压单元420调节脉冲幅值。具体地,当需要调节冲击波的能量时,可以调节脉冲幅值。当调节脉冲幅值时,控制单元320根据能量调节信号控制逆变升压单元420输出的电压幅值,从而控制逆变升压单元420调节脉冲幅值,增大或减小电脉冲发生单元310输出的脉冲幅值,从而调节电极对120产生的冲击波能量。
优选地,参考图9,电脉冲发生单元310还包括触发单元340和储能单元350,控制单元320通过触发单元340与储能单元350连接,控制单元320通过向触发单元340输出控制信号,控制触发单元340输出高电平信号或低电平信号,从而控制储能单元350是否输出脉冲,例如当控制单元320控制触发单元340输出高电平信号时,储能单元350输出信号;当控制单元320控制触发单元340输出低电平信号时,储能单元350不输出信号,从而形成脉冲波。检测单元410采集电脉冲发生单元310的电流信号是采集储能单元350的电流信号。
实施例三
在前述实施例的基础上,图10是本发明实施例三提供的又一种医疗装置的电路结构 示意图。参考图10,脉冲电流的检测单元410包括电流传感器411、积分放大电路413、电压比较器412。电流传感器411可以连接在储能单元350与手柄200的输出接口390之间,检测冲击波脉冲电流,控制单元320内部设置“ADC”功能模块,电流传感器411的输出信号为脉冲电流的微分,经过积分放大电路413还原为与脉冲电流成比例的脉冲电压信号,其中一路信号经由控制单元320内部的“ADC”功能模块,进行数据转换、处理,实时监测冲击波电流信号的大小;同时,另一路信号,经电压比较器,与球囊可接收的“电流信号阈值”比较,当实时监测冲击波电流信号超过“电流信号阈值”时,电压比较器412输出高或低电平翻转信号,控制单元320根据接收到的电压比较器412的电平翻转信号确定脉冲电流产生的时刻,从而在电脉冲发生单元310输出脉冲的时长达到目标脉冲宽度的时长时,即冲击波的目标能量值达到时,停止电流的输出,使得电脉冲发生单元310输出的脉冲宽度满足目标脉冲宽度,从而实现冲击波能量的调节。当控制单元320一旦检测到有电流信号发生时,根据目标脉冲宽度与电流信号响应时长差值,控制单元320延时切断电脉冲发生单元310停止电脉冲发生单元310产生的脉冲信号,从而控制高压电脉冲的脉冲宽度,实现对冲击波能量的调节。
实施例四
在前述实施例的基础上,图11是本发明实施例四提供的一种医疗装置的电路结构示意图。在上述技术方案的基础上,优选地,调节部件330包括触摸屏301、按键302、电位器303和编码器304中的至少一种。需理解,在图11中,触摸屏301表示是调节部件330的一种实现形式,并非表示触摸屏301与调节部件330是两个部件。下文中按键302、电位器303和编码器304与触摸屏301的表现形式意义相同。较佳地,医疗装置还包括手柄200和主机,调节部件330包括触摸屏301、按键302、电位器303和编码器304中的至少一种,调节部件330设置于手柄200或者主机上。手柄200的设计符合人体工学的设计,使得操作者手持时,便于操作。其中,主机例如为外壳装置,能量调节装置300设置在主机内部,触摸屏301可以设置在主机上,便于进行显示和操作。
示例性的,参考图11和16,能量调节装置300包括触摸屏301。通过触摸屏301输入需要的能量值,调节能量调节装置300输出的高压脉冲波的能量。触摸屏301可以显示能量值的大小,以及能量的数值等,或者,触摸屏301具有高中低档位的能量显示,可以分段显示能量值。触摸屏301包括人机交互界面,通过人机交互界面,可以输入具体的能量值,或者设置能量进度条,实现连续或分段调节能量值。优选地,触摸屏301包括能量分段调节按钮3011或者能量无级调节按钮3012。触摸屏301设置在手柄200 或者主机上。较佳地,触摸屏301通过控制单元320与逆变升压单元420的控制端连接,触摸屏301通过控制单元320与触发单元340连接。具体地,逆变升压单元420例如包括DC-DC升压电路,根据需要的能量值,调节触摸屏301的能量分段调节按钮3011或者能量无级调节按钮3012,控制单元320接收到能量调节信号后,输出控制信号至逆变升压单元420,控制逆变升压单元420根据需要的能量值调节输出的直流充电电压,从而调节储能单元350输出的能量,进而调节电极对120产生的冲击波的能量。示例性的,当调节能量分段调节按钮3011时,控制单元320接收到分段调节信号,控制逆变升压单元420输出相应的直流充电电压;当调节能量无级调节按钮3012时,控制单元320接收到无级调节信号,控制逆变升压单元420输出相应的直流充电电压,实现对脉冲幅值的连续调节。根据需要的能量值,调节触摸屏301的能量分段调节按钮3011或者能量无级调节按钮3012,控制单元320接收到能量调节信号后,输出控制信号至触发单元340,使得触发单元340根据需要的能量值调节输出的触发信号的脉冲宽度,从而调节储能单元350输出的高压电脉冲的脉冲宽度,进而调节电极对120产生的冲击波的能量。此外,触摸屏301可以显示能量值,还可以显示逆变升压单元420输出的直流充电电压,还可以显示触发单元340输出的触发信号的脉冲宽度,使得用户可以直观获取医疗装置的状态。需要说明的是,图12中只示出了触摸屏301设置在手柄200上的情况,但并不进行限定。
实施例五
在前述实施例的基础上,图12是本发明实施例五提供的一种医疗装置的电路结构示意图。可选地,参考图12,能量调节装置300包括按键302。按键302优选在手柄200上,也可以设置在主机上。按键302例如是数字按钮、能量加减的按钮等。当是数字按钮时,通过按下按键302,可以输入需要的能量值,从而提高或降低能量调节装置300输出的高压脉冲波的能量。优选地,按键302包括能量增加键3021和能量减小键3022,能量增加键3021或者减少能量键3022实现调节部件的分段调节。能量增加键3021与控制单元320连接。在本示范性实施例中,优选的,能量增加键3021被配置为动作时向逆变升压单元420输出幅值增加信号,以增加逆变升压单元420输出的直流充电电压,和/或,动作时向触发单元340输出脉冲宽度增大信号,以增大触发单元340输出的触发信号的脉冲宽度。能量减小键3022与控制单元320连接。优选的,能量减小键3022被配置为动作时向逆变升压单元420输出幅值减小信号,以减小逆变升压单元420输出的直流充电电压,和/或,动作时向触发单元340输出脉冲宽度减小信号,以减小触 发单元340输出的触发信号的脉冲宽度。例如,按压能量增加键3021,控制单元320接收到第一能量调节信号,控制逆变升压单元420输出的直流充电电压的幅值升高,也可以控制触发单元340输出的脉冲宽度增大。或者,按下能量减小按键3022,控制单元320接收到第二能量调节信号,控制逆变升压单元420输出的直流充电电压的幅值降低,也可以控制触发单元340输出的脉冲宽度减小。
具体地,能量增加键3021的第一端可以通过控制单元320与逆变升压单元420的第三端连接,能量增加键3021的第二端可以通过控制单元320与触发单元340连接;当按下能量增加键3021时,控制单元320接收到第一能量调节信号,就会控制逆变升压单元420输出的直流充电电压幅值升高,也可以控制触发单元340输出的脉冲宽度增大,从而增加储能单元350输出的高压脉冲波的能量,进而增加电极对120产生的冲击波的能量。能量减小键3022的第一端可以通过控制单元320与逆变升压单元420的第四端连接,能量减小键3022的第二端可以通过控制单元320与触发单元340连接;当按下能量减小键3022时,控制单元320接收到第二能量调节信号,就会控制逆变升压单元420输出的直流充电电压幅值降低,也可以控制触发单元340输出的脉冲宽度减小,从而降低储能单元350输出的高压脉冲波的能量,进而降低电极对120产生的冲击波的能量。
实施例六
在前述实施例的基础上,图13是本发明实施例六提供的一种医疗装置的电路结构示意图。可选地,参考图13,能量调节装置300包括电位器303。电位器303例如优选是旋转电位器303,可以调节电位器303的阻值,根据电阻值可以确定需要的能量值,以调节能量调节装置300输出的高压脉冲波的能量。
较佳地,电位器303与控制单元320连接。在本示范性实施例中,优选的,逆变升压单元420被配置为根据电位器303的阻值输出相应的直流充电电压,和/或,触发单元340被配置为根据电位器303的阻值输出相应的触发信号。优选地,电位器303包括旋钮,旋钮实现调节部件330的无级调节。具体地,逆变升压单元420例如包括DC-DC电压转换电路,电位器303可以通过控制单元320与逆变升压单元420连接,根据需要的能量值,旋转电位器303,控制单元320接收到能量调节信号后,输出控制信号至逆变升压单元420,控制逆变升压单元420根据需要的能量值调节输出的直流充电电压幅值,从而可以连续无极调节储能单元350输出的能量,进而连续无极调节电极对120产生的冲击波的能量。
触发单元340例如可以产生脉冲形式的触发信号,根据需要的能量值,调节电位器 303,控制单元320接收到相应的电阻值或电压值,并根据相应的电阻值或电压值确定电脉冲发生单元310输出脉冲的时长,从而控制触发单元340根据需要的能量值调节输出的触发信号的脉冲宽度,脉冲宽度越小,储能单元350输出的能量越小,脉冲宽度越大,储能单元350输出的能量越大,从而调节储能单元350输出的高压脉冲波的能量,进而调节电极对120产生的冲击波的能量。示例性的,顺时针旋转电位器303,控制单元320接收到能量增加信号,逆时针旋转电位器303,控制单元320接收到能量减小信号;或者,顺时针旋转电位器303,控制单元320接收到能量减小信号,逆时针旋转电位器303,控制单元320接收到能量增加信号。
实施例七
在前述实施例的基础上,图14是本发明实施例七提供的一种医疗装置的电路结构示意图。
可选地,参考图14,能量调节装置300包括编码器304。优选地,编码器304包括旋钮,旋钮实现调节部件330的无级调节。可选地,编码器304例如包括旋转编码器或绝对型编码器,也可以是其他编码器。编码器304的第一端通过控制单元320与逆变升压单元420的第三端连接,编码器304的第二端通过控制单元320与触发单元340连接。通过旋转编码器304,编码器输出系列高压电脉冲信号,由控制单元320解码,顺时针旋转编码器304例如可以增大输出的冲击波能量;逆时针旋转编码器304例如可以减小输出的冲击波能量,根据旋转编码器旋转的方向、格数和圈数,确定需要的能量值,调节能量调节装置300输出的高压脉冲波的能量。逆变升压单元420被配置为根据编码器304的旋转方向、旋转的格数和圈数,输出相应的直流充电电压,和/或,触发单元340被配置为根据旋转编码器304的旋转方向、旋转的格数和圈数输出相应的触发信号。
具体地,逆变升压单元420例如包括DC-DC电压转换电路,编码器304的第一端可以通过控制单元320与逆变升压单元420的第三端连接,根据需要的能量值,顺时针或逆时针调节编码器304,控制单元320接收到能量调节信号后,控制单元320进行解码,输出控制信号至逆变升压单元420,控制逆变升压单元420根据需要的能量值调节输出的直流充电电压幅值,从而连续调节储能单元350输出的能量,进而实现无极调节电极对120产生的冲击波的能量。触发单元340例如可以产生脉冲形式的触发信号,编码器304的第二端可以通过控制单元320与触发单元340连接,根据需要的能量值,调节编码器304,控制单元320接收到能量调节信号后,输出控制信号至触发单元340,使 得触发单元340根据需要的能量值调节输出的触发信号的脉冲宽度,从而调节储能单元350输出的高压脉冲波能量,进而调节电极对120产生的冲击波的能量。
实施例八
在前述实施例的基础上,图15是本发明实施例八提供的一种医疗装置的结构示意图。可选地,参考图15,电脉冲发生单元310还包括放电开关311;触发单元340的第二端通过放电开关311与储能单元350的第二端连接,放电开关311配置为在触发信号为第一电平时闭合。具体地,触发单元340输出触发信号至放电开关311,当触发信号为第一电平时,第一电平例如为高电平,放电开关311闭合,储能单元350输出信号。当触发信号为第二电平时,第二电平例如为低电平,放电开关311断开,储能单元350不输出信号。第一电平与第二电平的交替转换形成脉冲波,储能单元350输出脉冲波至电极对120,使得电极对120产生高压冲击波。
优选地,参考图15,医疗装置还包括治疗开关360。治疗开关360位于手柄200上。具体地,将治疗开关360放置在手柄200上,可以方便操作。按下治疗开关360,控制单元320接收到信号,并控制触发单元340输出触发信号,使得储能单元350响应触发信号输出脉冲波至电极对120,电极对120产生对应的高压冲击波。治疗开关360例如是控制冲击波的输出与关断。
优选地,参考图15,医疗装置还包括稳压单元370。电源单元430与稳压单元370的第一端连接,稳压单元370的第二端与逆变升压单元420的第一端连接。具体地,稳压单元370可以保证电源单元430输出稳定的电压,从而保证逆变升压单元420和储能单元350可以稳定工作,提高了医疗装置的稳定性。
优选地,参考图15,医疗装置还包括电源开关380;电源单元430通过电源开关380与稳压单元370的第一端连接。具体地,当使用医疗装置时,按下电源开关380,电源开关380闭合,电源单元430就可以输出电信号至稳压单元370,为逆变升压单元420和控制单元320提供电信号;当医疗装置使用完毕时,再次按下电源开关380,电源开关380断开,逆变升压单元420和控制单元320失电,停止工作。
优选地,参考图15,能量调节装置300还包括输出接口390;储能单元350通过输出接口390与电极对120连接。具体地,储能单元350可以通过输出接口390输出脉冲波至电极对120,从而使得电极对120产生高压冲击波。
优选地,参考图15,电源单元430包括锂电池组。具体地,使用锂电池组进行供电,使得医疗装置可以便携,无需在固定位置接入电源;而且锂电池组储能较多,可以 延长治疗设备的使用时间,有利于提升用户体验。
优选地,参考图15,医疗装置还包括电压采样单元391,电压采样单元391与逆变升压单元420的第二端连接,电压采样单元391被配置为采集逆变升压单元420输出的直流充电电压。具体地,电压采样单元391可以采集逆变升压单元420输出的直流充电电压,可以将直流充电电压发送至触摸屏301,触摸屏301可以显示逆变升压单元420输出的直流充电电压的幅值,使得用户可以判断逆变升压单元420输出的直流充电电压的幅值是否达到目标电压幅值;当直流充电电压的幅值与目标电压幅值不符时,可以继续调节触摸屏301、按键302、电位器303或编码器304,从而继续调节逆变升压单元420输出的直流充电电压,直至直流充电电压的幅值达到目标电压幅值,从而保证电极对120产生的冲击波的能量满足需求。
本实施例能够在IVL系统的临床治疗中,以及动脉血管钙化病变的相关医学研究及实验中,对冲击波电源的输出能量,实现分段和/或连续调节,控制输出的冲击波能量,提高临床适应性。临床治疗中,操作者可根据患者实际动脉血管钙化病变情况,及治疗效果,调节输出的冲击波脉冲能量,有效破碎和松解钙化物质,提高血管的管腔内径,以利于后续的血管支架植入等治疗措施,提高术后效果和缩短患者康复时间。并且,方便动脉血管钙化病变相关医学研究和实验,助力医生对不同种类的动脉血管钙化病变,进行精细化实验、分析、研究,促进临床治疗手段的提高和完善,以进一步改善和提高动脉血管钙化病变临床治疗的安全性、可靠性、有效性。
实施例九
在前述实施例的基础上,图17是本发明实施例九提供的又一种医疗装置的电路结构示意图。参考图17,电源单元430包括锂电池组431,逆变升压单元420包括DC-DC升压单元421,检测单元410包括电流传感器411,电流传感器411可以连接在储能单元350与输出接口390之间,采集储能单元350输出的电流信号,并且,可以将电流信号输出至控制单元320;输出接口390与控制单元320连接,控制单元320可以控制输出接口390是否开启,也可以检测输出接口390的状态;医疗装置还包括开关机电路440,电源开关380通过开关机电路440与稳压单元370连接,电源开关380通过开关机电路440与控制单元320的电源端连接;医疗装置还包括调节单元450,控制单元320通过调节单元450与DC-DC升压单元421连接,调节单元450可以调节控制单元320输出的控制信号的幅值和脉冲宽度,从而调节DC-DC升压单元421接收到的控制信号,进而调节DC-DC升压单元421输出的直流充电电压的幅值。
实施例十
在前述实施例的基础上,图18是本发明实施例十提供的又一种医疗装置的电路结构示意图。因冲击波球囊的物理结构限制,高压脉冲冲击波激励信号必需达到一定幅值,比如DC2000V以上,或者地在DC2000V~DC3500V范围内,冲击波球囊内置电极才能击穿放电,产生脉冲声压冲击波,治疗钙化病变,加载的激励电压过低,球囊电极不能击穿,无法产生冲击波;加载的激励电压过高,球囊电极击穿放电时,电流过大,内置电极容易烧灼,严重影响使用寿命,而一般高压开关器件的开通及关断延迟时间在0.1us以上,且放电电流检测时间,一般在0.2us以上,高压脉冲输出时,即便减小触发控制脉冲的宽度,实际上也很难继续减小冲击波脉冲的实际宽度,无法继续从脉冲宽度上,降低冲击波能量。当冲击波球囊产生的脉冲冲击波针对不均匀的钙化病变处的钙化物质呈松软、不规则状态,需要低能量的冲击波,将钙化物质振动平整,将凹凸不平的组织平整疏通,从而将低能量的冲击波应用在解决动脉血管狭窄、堵塞等病变的临床治疗上,及其它需要低能量冲击波的应用情景。参考图18,于本实施例中提供的高压脉冲放电回路中设置分压单元460,分压单元460的一端与电脉冲发生单元310的输出端电连接,分压单元的另一端作为输出端与设置于球囊110中的电极对120连接,分压单元用于承担部分脉冲波电压和/或限制脉冲波电流。电脉冲发生单元310发出的高压电脉冲,可以是高压脉冲电源单元直接输出的或经过能量调节信号调节后的高压电脉冲,再通过分压单元460的电压分压,用于输出经过分压和/或限流后的球囊在持续击穿状态下的脉冲宽度和/或脉冲幅值,实现球囊在持续击穿状态下接收低能量冲击波,使得电极对的放电击穿电流减小,冲击波的能量进一步降低,实现在持续击穿状态下维持冲击波球囊的低能量冲击波。冲击波球囊内置电极在高压脉冲电压激励下,击穿放电时,通过串联分压单元460的分压使得电源单元430通过电源开关380控制电源单元430的输出直流电压的一部分直接加载到冲击波球囊内置电极上,高压脉冲输出电源单元430串联分压单元460,使得球囊110在高压激励下,击穿放电时,电源单元430的输出电压,由分压单元460分压,电极对120产生的冲击波的能量的实际电压和电流在分压单元460的作用下,使得脉冲冲击波的冲击能量可以限制在一定的范围内。
图19是本发明实施例十提供的一种医疗装置的低能量冲击波的电路结构示意图。参考图19,电源开关Q1闭合时,导通压降很低,可以忽略。当需要根据实际钙化物质情况需要进一步减小冲击波发生单元输出的高压冲击波能量时,高压脉冲输出电源单元430提供的电压值为S1,电源输出线缆及球囊导管的内阻Rs,电源开关Q1处于导通状 态,放电通路上串联分压单元460设置为具有一定可变阻值的高压分压限流电阻Rv,Rv的具体取值可以根据冲击波能量进行确定,通过串联的压分压限流电阻Rv,在球囊击穿后内阻基本不变,而内阻相同时,可以使得冲击波能量值大大下降;
在未串接Rv时,或即Rv=0Ω时,
例如地,S1=3000V,Rs=10Ω,球囊击穿后内阻为1.8Ω,则脉冲放电电流IΠ为:
本实施例中,串接Rv后,即Rv>0Ω或为某一预设值时,
例如地,S1=3000V,Rv=12Ω,Rs=10Ω,球囊击穿后内阻不变,仍为1.8Ω,则脉冲放电电流IΠ为:
此时的放电电流与串联Rv前降低近1/2;
根据前述,因球囊击穿后内阻基本不变,而内阻相同时,相同脉宽的冲击波能量与放电电流的平方成比例关系,因此冲击波能量降为原先的1/4,冲击波能量大大减小。
在高压脉冲放电回路中,串联分压限流电阻Rv后,球囊的内阻在高压脉冲激励下,尚未击穿放电前,远远大于分压限流电阻Rv,所以高压脉冲几乎全部加载到球囊,保证了球囊能够正常击穿,产生冲击波。
球囊正常击穿后,因放电电流通路形成,内阻瞬间变小,此时回路中的冲击波高压,由串联的分压限流电阻Rv分压一部分,冲击波电流,由分压限流电阻Rv及线缆和球囊导管的内阻限定在一定范围,因此冲击波球囊上的高压脉冲电压,在球囊内置电极击穿后瞬间回落,保持在一定范围,以确保维持球囊能够持续击穿状态时产生较低能量的冲击波。
球囊击穿过程,在高压脉冲放电回路中,串联分压单元460后,球囊110的内阻在高压脉冲激励下,尚未击穿放电前,远远大于分压单元460的电阻Rv,此时高压脉冲几乎全部加载到球囊110,保证了球囊110能够正常击穿,产生高压脉冲冲击波。
球囊正常击穿后,因放电电流通路形成,内阻瞬间变小,此时回路中的冲击波高压,被串联的分压单元460分压一部分,冲击波电流,由分压单元460及线缆和球囊导管的内阻限定在一定范围,使得球囊110上接收的高压脉冲电压,在球囊内置电极击穿后瞬间回落,保持在确保维持球囊能够持续击穿状态,产生较低能量冲击波的能量范围内,作用于病变组织的钙化物。
在本实施例的冲击波放电回路中,与持续的高压冲击波相比,本实施例提到的分压单元在冲击波球囊的能够被高压能量的冲击波可靠击穿的同时,又有效减小了冲击波球囊的击穿电流,从而产生冲击钙化病变组织所需较低能量的冲击波;球囊电极击穿后,分压单元承载的电压使得球囊可以接收较低能量的冲击波,通过分压单元实现低能量冲击波的输出,对于电源单元输出的高压电脉冲是否需要调节不做限定,电脉冲单元的输出可以是根据能量调节需求输出的高压电脉冲,也可以是从高压电源单元直接输出至电脉冲发生单元的高压电脉冲,高压电脉冲通过分压单元使得球囊内置电极对产生的电压和/或流过的击穿电流都降低到目标钙化组织或钙化部位所需的低或较低能量需求,同时避免了冲击波球囊内置电极对的烧灼、损伤,极大提高了IVL临床治疗的安全性、可靠性。
实施例十一
在前述实施例的基础上,图20是本发明实施例十一提供的一种医疗装置的控制方法的流程图。控制方法用于实现一球囊导管的冲击波能量的调节,控制方法采用本实施例中提供的医疗装置,参考图1和图20,该控制方法包括:
S101、调节调节部件,调节部件用于发出能量调节信号;
具体地,当电极对120产生的冲击波的能量高于或者低于预设能量时时,可以调节调节部件330,调节部件330发出能量调节信号。调节调节部件330,可以是控制单元320进行调节,也可以是用户调节。
S102、控制单元接收能量调节信号,并根据能量调节信号调节电脉冲发生单元发出的高压电脉冲的脉冲宽度和/或脉冲幅值。具体地,控制单元320接收到能量调节信号后,根据能量调节信号调节电脉冲发生单元310发出的高压电脉冲的脉冲宽度和/或脉冲幅值,从而调节能量调节装置300输出的脉冲波的能量,进而调节电极对120产生的冲击波的能量。例如,当电极对120产生的冲击波能量较低时,通过调节调节部件330,调节部件330发出能量增加的能量调节信号,控制单元320控制电脉冲发生单元310发出的冲击波的脉冲宽度增大,和/或,控制电脉冲发生单元310发出的冲击波的脉冲幅值增大,从而增大电极对120产生的冲击波的能量;当电极对120产生的冲击波能量较高时,通过调节调节部件330,调节部件330发出能量降低的能量调节信号,控制单元320控制电脉冲发生单元310发出的高压电脉冲的脉冲宽度减小,和/或,控制电脉冲发生单元310发出的高压电脉冲的脉冲幅值减小,从而降低电极对120产生的冲击波的能量。
S103、电极对在控制单元的控制下在球囊内发出冲击波,冲击波作用于目标组织。 具体地,控制单元320控制电极对120向球囊110发出高压电脉冲。在球囊110中,短时间的高压放电,可以冲击并碎裂浅表与深层病变血管处的钙化物质,使得血管得到适度软化,从而明显地改善血管顺应性。根据需求调节电极对120产生的能量,避免电极对120产生的能量较低或较高,导致治疗效果较差的问题,或者,对患者血管内膜造成损伤的问题。
在上述技术方案的基础上,可选地,根据能量调节信号调节电脉冲发生单元发出的高压电脉冲的脉冲宽度和脉冲幅值的步骤包括:
步骤a、根据能量调节信号确定目标能量值,根据目标能量值按照第一比例调节脉冲宽度。例如,当能量需要增加10%时,第一比例为a%,按照第一比例a%调节得到的能量增加比例为A%,A%不大于10%。可选的,A%可以是0。能量减小与能量增加调节方式相似,不在赘述。
步骤b、根据目标能量值按照第二比例调节脉冲幅值。例如,当能量需要增加10%时,第二比例为b%,按照第二比例b%调节得到的能量增加比例为B%,B%不大于10%。可选的,B%可以是0。同样的,能量减小的调节方式不在赘述。第一比例、第二比例的具体取值可以根据实际情况进行确定,例如根据电路结构和电路参数进行确定,或者根据球囊组件的物理结构对应的最合适的电压幅值和能量确定。其中,按照第一比例调节得到的脉冲宽度的能量值与按照第二比例调节得到的脉冲幅值的能量值之和等于目标能量值。例如,按照第一比例a%调节得到的能量增加比例为A%与按照第二比例b%调节得到的能量增加比例为B%之和等于10%的能量增加。当调节脉冲宽度和脉冲幅值后,得到的能量值之和即为目标能量值,从而实现对冲击波能量的调节,以实现发出冲击波作用于目标组织。
可选地,根据预先存储的能量调节信号对应的能量值、电压幅值和脉冲宽度的关系式,确定能量调节信号对应的目标电压幅值和目标脉冲宽度;或者,根据预先存储的能量调节信号对应的能量值、电压幅值和脉冲宽度的关系式,确定第一比例和第二比例。
示例性的,球囊组件中的冲击波发生单元放电时,在短时间内(0.1us至2us时间内)通过的能量可以近似等效为:
其中,E为冲击波发生单元输出的高压冲击波的能量值,U为高压冲击波的电压幅值,τ为高压冲击波的脉冲宽度,R为球囊击穿后的放电通路内阻及放电线路上的内阻之和。球囊组件的物理结构确定后,每次冲击波击穿放电后的内阻值相差较小,差别可 以忽略不计,此时R具体可以视为定值,R的具体取值可以根据球囊组件的结构进行确定。
当冲击波的脉冲宽度不变时,冲击波的电压幅值与能量值的关系式如下:
当冲击波的电压幅值不变时,冲击波的脉冲宽度与能量值的关系式如下:
当冲击波的电压幅值和脉冲宽度均可调节时,当脉冲宽度为0.4us-1.6us时,将式(2)简化,得到电压幅值及脉宽与能量的关系如下:
其中,系数k1为脉冲宽度τ的倒数开平方所得,表1为系数k1与脉冲宽度τ的对应关系表,表1中仅列出了部分脉冲宽度τ所对应的系数k1。实际脉冲宽度包括但不限于表1中的数值。
表1系数k1与脉冲宽度τ的对应关系表
当冲击波的电压幅值为2600V-3200V时,将式(2)简化,得到电压幅值及脉宽与能量的关系如下:
τ=k2ER            (5)
其中,系数k2为电压幅值的平方的倒数,表2为系数k2与电压幅值的对应关系表,表2中仅列出了部分电压幅值所对应的系数k2。实际电压幅值包括但不限于表2中的数值。
表2系数k2与电压幅值的对应关系表
示例性的,球囊组件的物理尺寸和结构确定后,冲击波的电压幅值和脉冲宽度的范围即确定,冲击波的电压幅值和脉冲宽度的调节需在球囊组件可接受的合理范围内。
此外,可以根据球囊组件对应的能量调节范围,根据球囊组件类型及其合适的冲击波电压幅值范围,根据公式(5),先确定合理的电压幅值,从而确定系数k2,再计算确 定相应的电压幅值的第二比例。同理,根据公式(4),先确定合理的脉冲宽度,从而确定系数k1,再计算确定相应的脉冲宽度的第一比例,按照第一比例调节得到的脉冲宽度的能量值与按照第二比例调节得到的脉冲幅值的能量值均可作用于球囊内置的电极对,产生满足目标能量值的冲击波。
实施例十二
于前述实施例的基础上,图21是本发明实施例十三提供的一种医疗装置的控制方法的流程图,参考图9、图10和图21,医疗装置的控制方法包括:调节调节部件之前,
S201、根据前次电脉冲发生单元310的电压值和/或电流值,确定前次球囊110接收的冲击波的能量值.通过接收的冲击波的脉冲宽度和/或脉冲幅值判断电极对120产生的冲击波是否满足需求。
S202、判断前次冲击波的能量值与预设能量调节信号对应的能量值是否一致,若不一致,则调节调节部件330;具体地,预设能量调节信号,例如为调节部件330输出的能量调节信号,当前次冲击波的能量值与预设能量调节信号对应的能量值不一致时,表明电极对120产生的冲击波的能量过低或过高,不满足当前钙化组织分解时的冲击波的能量调节需求,需要进行能量调节。
可选地,S2031、当电脉冲发生单元的电压值不满足能量调节信号对应的目标电压幅值时,控制单元320调节电脉冲发生单元310的脉冲幅值。具体地,控制单元320接收到能量调节信号后,如果电脉冲发生单元310输出的电压值满足能量调节信号对应的目标电压幅值时,则无需对电脉冲发生单元310的脉冲幅值进行调节,当电脉冲发生单元310输出的电压值不满足能量调节信号对应的目标电压幅值时,控制单元320就会调节电脉冲发生单元310的脉冲幅值,以调节电脉冲发生单元310输出的脉冲波的能量,输出预设幅值区间范围的脉冲幅值的冲击波,作用于目标组织实现钙化组织分解。
可选地,S2032,采集本次电脉冲发生单元310的电流信号,以及通过控制单元320控制本次电脉冲发生单元310的电流信号,当需要调节输出冲击波的能量时,控制单元320被配置为向能量调节信号向电脉冲发生单元310的脉冲指令,调节电脉冲发生单元310发出满足预设脉宽区间范围的脉冲宽度的冲击波,作用于目标组织实现钙化组织分解。
可以理解的是,步骤S2031与步骤S2032的先后顺序可以调节,例如S2031在S2032之前或者之后,或者步骤S2031与步骤S2032只进行一步,在此不做限定。
在上述实施方案的基础上,在调节部件330发出能量调节信号步骤之后,方法还可 以包括:检测和控制本次电脉冲发生单元310的电压值,以及检测本次电脉冲发生单元310的电流值,调节输出的脉冲宽度。具体地,在调节部件330发出能量调节信号之后,检测本次电脉冲发生单元310的电压值,根据本次电脉冲发生单元310的电压值和能量调节信号对应的目标电压幅值,调节电脉冲发生单元310输出的电压值,直至电脉冲发生单元310输出的电压值满足目标电压幅值。可选的,检测本次电脉冲发生单元310的电流值,根据本次电脉冲发生单元310的电流值和能量调节信号对应的目标脉冲宽度,调节电脉冲发生单元310输出的脉冲波的脉冲宽度,直至电脉冲发生单元310输出的脉冲宽度满足目标脉冲宽度预设脉宽区间范围,从而实现对电脉冲发生单元310输出的脉冲波的能量调节,进而实现调节电极对120产生的冲击波的能量。
实施例十三
IVL是介入治疗领域的一项创新突破。无论是左主干病变、成角病变、支架膨胀不全,还是环形、偏心钙化以及浅表、深层钙化等,IVL都展现出巨大的临床应用优势。在动脉血管钙化病变的临床治疗中,得到了医疗系统越来越多的认可和推广。
于前述实施例的基础上,第二实施例至第九实施例中的至少一结构或电路,在此就不再详细说明。该系统进一步包括IVL系统包括球囊110,球囊110内设置有在球囊内产生冲击波的电极对120,IVL系统内还设置有能量调节装置,响应于球囊在接入状态和/或移除状态下的能量调节需求,能量调节装置包括电脉冲发生单元310、控制单元320以及调节部件330;
工作状态下,调节部件被配置为获取根据能量调节需求并通过控制单元调节电脉冲发生单元发出的高压电脉冲的脉冲宽度和/或脉冲幅值,高压电脉冲通过电极对在球囊发出冲击波,作用于目标组织。
IVL系统的检测单元的第一端与电脉冲发生单元的检测端连接,检测单元的第二端与控制单元连接,检测单元用于采集电脉冲发生单元的电流信号,控制单元用于接收电流信号并得到已发生冲击波的时长,以及控制单元用于根据能量调节信号对应的目标脉冲宽度的时长,确定电脉冲发生单元的脉冲输出的时长,并根据脉冲输出的时长向电脉冲发生单元发出脉冲指令,以调节脉冲宽度。
IVL系统还包括逆变升压单元和电源单元,电源单元通过逆变升压单元与电脉冲发生单元的输入端连接,逆变升压单元用于将电源单元输出的低压升至高压。本应用例中设计了一种可调节球囊接收的冲击波能量值的系统,适应临床治疗时针对不同钙化病变程度时球囊接收的冲击波能量值需要调节的情况,使得IVL临床治疗和应用更加安全、 高效。
本实施例的IVL系统是冲击波能量可以实现分段和/或连续调节的球囊在动脉血管组织中冲击钙化组织中一种应用,能够在IVL系统的临床治疗中,以及动脉血管钙化病变的相关医学研究及实验中,对冲击波电源的输出能量,实现分段和/或连续调节,控制输出的冲击波能量,提高临床适应性。临床治疗中,操作者可根据患者实际动脉血管钙化病变情况,及治疗效果,调节输出的高压电脉冲脉冲宽度和/或脉冲幅值,使得产生的冲击波脉冲能量能有效破碎和松解钙化物质,提高血管的管腔内径,以利于后续的血管支架植入等治疗措施,提高术后效果和缩短患者康复时间。并且,方便动脉血管钙化病变相关医学研究和实验,助力医生对不同种类的动脉血管钙化病变,进行精细化实验、分析、研究,促进临床治疗手段的提高和完善,以进一步改善和提高动脉血管钙化病变临床治疗的安全性、可靠性、有效性。
实施例十四
本发明技术原理不仅限于冲击波球囊的能量调节,于本实施例中,如果一个存在冲击波能量调节需求的系统,包括冲击波发出模块和冲击波接收模块,能量调节装置,其中,能量调整装置的一端连接冲击波发出模块,另一端与冲击波接收模块连接,能量调节装置用于监测冲击波接收模块的能量调节需求,确定能量调节装置的能量调节信号,根据能量调节信号调节冲击波发出模块的冲击波能量作用于冲击波接收模块产生冲击波脉冲能量,有效破碎和松解钙化物质。
应该理解,可以使用上面所示的各种形式的流程,重新排序、增加或删除步骤。例如,本发明中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行,只要能够实现本发明的技术方案所期望的结果,本文在此不进行限制。
上述具体实施方式,并不构成对本发明保护范围的限制。本领域技术人员应该明白的是,根据设计要求和其他因素,可以进行各种修改、组合、子组合和替代。任何在本发明的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明保护范围之内。

Claims (15)

  1. 一种医疗装置,用于目标组织的钙化分解,其特征在于,包括:
    球囊,
    能量调节装置,所述能量调节装置包括电脉冲发生单元、控制单元以及调节部件,所述调节部件与所述控制单元连接,所述控制单元与所述电脉冲发生单元的控制端连接,所述电脉冲发生单元的输出端与所述电极对连接;
    所述能量调节装置被配置为响应于所述球囊在接入状态和/或移除状态下的能量调节需求,所述调节部件根据所述能量调节需求发出能量调节信号并输出至所述控制单元,所述控制单元根据接收到的所述能量调节信号控制所述电脉冲发生单元发出的冲击波的脉冲宽度和/或脉冲幅值,
    以及,
    电极对,所述电极对设置于所述球囊中,所述能量调节装置输出的高压电脉冲通过所述电极对在所述球囊内产生冲击波,并作用于目标组织。
  2. 根据权利要求1所述的医疗装置,其特征在于,当所述电脉冲发生单元的电压值对应的脉冲幅值不满足所述能量调节信号对应的目标电压幅值时,所述调节部件根据所述目标电压幅值与当前的所述电压值的差值发出能量调节信号,所述控制单元用于接收所述能量调节信号,以调节所述电脉冲发生单元发出满足预设幅值区间范围的脉冲幅值的高压电脉冲作用于电极对,在所述球囊内产生冲击波作用于目标组织,其中,所述预设幅值区间范围的幅值至少包括目标电压幅值。
  3. 根据权利要求1所述的医疗装置,其特征在于,所述控制单元被配置为根据电脉冲发生单元的电流信号的电流响应延时时长及电流采集时长,确定已产生的有效的冲击波时长,以及根据所述能量调节信号对应的目标脉冲宽度的时长,确定所述电脉冲发生单元的脉冲输出的时长,并根据计算得出的脉冲输出的时长向所述电脉冲发生单元发出脉冲指令或信号,所述控制单元通过所述脉冲指令调节所述电脉冲发生单元发出满足预设脉宽区间范围的脉冲宽度的高压电脉冲,其中,所述预设脉宽区间的脉宽至少包括所述脉冲输出的时长。
  4. 根据权利要求3所述的医疗装置,其特征在于,所述医疗装置还包括检测单元,所述检测单元的第一端与所述电脉冲发生单元的检测端连接,所述检测单元的第二端与所述控制单元连接,所述检测单元被配置为采集本次所述电脉冲发生单元的所述电流信号,所述控制单元用于接收所述电流信号并基于所述电流信号得到冲击波发生时刻。
  5. 根据权利要求3所述的医疗装置,其特征在于,通过所述脉冲指令调节所述电脉 冲发生单元发出满足预设脉宽区间范围的脉冲宽度的高压电脉冲包括:
    采集所述电脉冲发生单元的电流信号,当所述电脉冲发生单元的电流值大于预设电流阈值时,确定所述电流信号对应的已发生冲击波时长阈值,所述时长阈值包括电流采集时长以及电流响应延时时长;
    当所述能量调节信号对应的目标脉冲宽度的时长与所述时长阈值的差异值满足预设差异值时,所述控制单元控制所述电脉冲发生单元发出所述脉冲指令,调节所述电脉冲发生单元发出满足预设脉宽区间范围的脉冲宽度的高压电脉冲,作用于所述电极对,在所述球囊内产生冲击波,作用于目标组织;
    其中,所述预设差异值包括预设差值范围,和/或,所述预设差异值包括预设比值范围。
  6. 根据权利要求3所述的医疗装置,其特征在于,所述控制单元用于当所述检测单元采集到所述电流信号时,根据所述调节部件设置的所述能量调节需求对应的脉宽调节需求,切断所述电脉冲发生单元产生的脉冲信号。
  7. 根据权利要求1所述的一种医疗装置,其特征在于,所述控制单元包括MCU、DSP、FPGA中的至少一种;
    和/或,所述医疗装置还包括逆变升压单元和电源单元,所述电源单元通过所述逆变升压单元与所述电脉冲发生单元的输入端连接,所述逆变升压单元用于将所述电源单元输出的低压升至高压,所述电脉冲发生单元输出的脉冲的电压大于700V。
  8. 根据权利要求1所述的一种医疗装置,其特征在于,所述医疗装置还包括逆变升压单元,所述逆变升压单元的输出端与所述电脉冲发生单元的输入端电连接,所述控制单元与所述逆变升压单元的控制端电连接,所述控制单元用于在需要调节所述脉冲幅值时,控制所述逆变升压单元调节所述脉冲幅值。
  9. 根据权利要求1所述的医疗装置,其特征在于,所述调节部件包括触摸屏、按键、电位器和编码器中的至少一种;或者,所述医疗装置还包括手柄和主机,所述调节部件包括触摸屏、按键、电位器和编码器中的至少一种,所述调节部件设置于所述手柄或者所述主机上;
    其中,所述按键包括能量增加键以及能量减小键,所述能量增加键或者所述能量减少键实现所述调节部件的分段调节;或者,所述电位器或者所述编码器包括旋钮,所述旋钮实现所述调节部件的无级调节;或者,所述触摸屏包括能量分段调节按钮或者能量无级调节按钮。
  10. 根据权利要求1所述的医疗装置,其特征在于,所述医疗装置包括分压单元,所述分压单元的一端与所述电脉冲发生单元的输出端电连接,所述分压单元的另一端作为输出端与设置于所述球囊中的电极对连接,用于输出经过分压和/或限流后的所述球囊在持续击穿状态下的脉冲宽度和/或脉冲幅值,实现所述球囊在持续击穿状态下接收低能量冲击波。
  11. 一种医疗装置的控制方法,其特征在于,采用权利要求1-10中任一项所述的医疗装置,用于实现所述医疗装置的冲击波能量的调节,所述控制方法包括:
    调节调节部件,所述调节部件用于发出能量调节信号;
    控制单元接收所述能量调节信号,并根据所述能量调节信号调节所述电脉冲发生单元发出的高压电脉冲的脉冲宽度和/或脉冲幅值;
    所述电极对在控制单元的控制下在所述球囊内发出冲击波,所述冲击波作用于目标组织。
  12. 根据权利要求11所述的控制方法,其特征在于,在调节所述调节部件的步骤之前,所述控制方法还包括:
    根据前次所述电脉冲发生单元的高压电脉冲的电压值和/或电流值,确定前次所述球囊内产生的冲击波的能量值;
    判断前次冲击波的能量值与预设所述能量调节信号对应的能量值是否一致,若不一致,则调节所述调节部件;以及,
    在所述调节部件发出能量调节信号步骤之后,所述方法还包括:
    检测和控制本次所述电脉冲发生单元的电压值,以及检测本次所述电脉冲发生单元的电流值,调节输出的脉冲宽度。
  13. 根据权利要求11所述的控制方法,其特征在于,根据所述能量调节信号调节所述电脉冲发生单元发出的冲击波的脉冲宽度和/或脉冲幅值的步骤包括:
    根据所述能量调节信号确定目标能量值,根据目标能量值按照第一比例调节脉冲宽度;
    根据所述能量调节信号确定目标能量值,根据目标能量值按照第二比例调节脉冲幅值;
    其中,按照所述第一比例调节得到的脉冲宽度的能量值与按照所述第二比例调节得到的脉冲幅值的能量值均可作用于所述球囊内置的所述电极对,产生满足所述目标能量值的冲击波。
  14. 一种IVL系统,所述IVL系统包括如权利要求1-10中任一项所述的医疗装置。
  15. 一种冲击波能量调节系统,其特征在于,所述冲击波能量调节系统包括:冲击波发出模块和冲击波接收模块,能量调节装置,
    其中,所述能量调整装置的一端连接所述冲击波发出模块,另一端与所述冲击波接收模块连接,所述能量调节装置用于监测所述冲击波接收模块的能量调节需求,确定所述能量调节装置的能量调节信号,根据所述能量调节信号调节所述冲击波发出模块的冲击波能量作用于所述冲击波接收模块。
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