WO2018181991A1 - 認知症を治療するための装置、当該装置の作動方法及びプログラム - Google Patents
認知症を治療するための装置、当該装置の作動方法及びプログラム Download PDFInfo
- Publication number
- WO2018181991A1 WO2018181991A1 PCT/JP2018/013893 JP2018013893W WO2018181991A1 WO 2018181991 A1 WO2018181991 A1 WO 2018181991A1 JP 2018013893 W JP2018013893 W JP 2018013893W WO 2018181991 A1 WO2018181991 A1 WO 2018181991A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ultrasonic
- probe
- unfocused
- ultrasound
- brain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0004—Applications of ultrasound therapy
- A61N2007/0021—Neural system treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0004—Applications of ultrasound therapy
- A61N2007/0021—Neural system treatment
- A61N2007/0026—Stimulation of nerve tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0078—Ultrasound therapy with multiple treatment transducers
Definitions
- the present invention relates to a device for treating dementia, an operation method of the device, and a program.
- the number of patients with dementia in Japan is said to be about 2.6 million, and the number of people with dementia will increase with the rapid increase in the elderly population in the future. Yes.
- the number of patients with dementia is estimated to be 35 million in the world, and it is estimated that 65 million in 2030 and 115 million in 2050.
- cerebrovascular dementia and Alzheimer's dementia account for the majority of all dementia, and there are many patients who exhibit both symptoms.
- Measures against cerebrovascular dementia include hypertension, dyslipidemia, pharmacotherapy for diabetes, and other activities such as lack of exercise, smoking, overeating, and stress reduction. Treat cerebrovascular dementia itself. Drugs have not been developed yet. In addition, for Alzheimer type dementia, drugs having an action mechanism that activates the acetylcholine pathway and suppresses glutamic acid are commercially available, but the therapeutic effect is not always sufficient. Therefore, development of an effective means for treating dementia is desired.
- Non-patent Document 1 LIPUS (Low-Intensity Pulsed Ultrasound)
- LIPUS Low-Intensity Pulsed Ultrasound
- An object of the present invention is to provide a new method for treating dementia that is different from conventional drug treatment and the like.
- the present inventors have developed a wide range of unfocused ultrasound energy irradiated from an ultrasound probe, rather than focused ultrasound energy irradiated to focus from an ultrasound probe. It has been found that dementia can be treated by causing angiogenesis and causing angiogenesis.
- the present invention is based on such new knowledge.
- the present invention provides an ultrasonic generator and a method of operating a device for treating dementia according to the following sections: Item 1.
- a device for treating dementia Multiple ultrasonic probes,
- An apparatus comprising an ultrasonic transducer disposed in an ultrasonic probe and transmitting unfocused ultrasonic energy to the brain, and an ultrasonic generator connected to the ultrasonic probe.
- Item 2 The apparatus according to Item 1, wherein unfocused ultrasonic energy diffuses in an inversely tapered shape that gradually expands in the radial direction.
- Item 3. The apparatus according to Item 2, wherein the expanding angle of the inclined surface of the inversely tapered unfocused ultrasonic energy expanding in diameter is 50 ° to 100 °.
- Item 4. The apparatus according to any one of Items 1 to 3, wherein the ultrasonic generator controls the ultrasonic transducer so as to sequentially irradiate non-focused ultrasonic energy between a plurality of ultrasonic probes.
- Item 5 The apparatus according to Item 4, wherein unfocused ultrasonic energy irradiation by a plurality of ultrasonic probes is performed at intervals of 0.15 / f or more (f indicates a frequency (MHz) of a pulse to be transmitted) ms or more.
- Item 6. The apparatus according to any one of Items 1 to 5, wherein the plurality of ultrasonic probes further includes an ultrasonic wave receiving element for receiving ultrasonic waves irradiated from each other and transmitted through the brain. .
- Item 7 The apparatus according to Item 6, further comprising means for evaluating a therapeutic effect with ultrasound in accordance with received intensity of transmitted ultrasound.
- Item 8 The apparatus according to Item 6 or 7, further comprising output adjusting means for adjusting the output of the output ultrasonic wave according to the reception intensity of the transmitted ultrasonic wave.
- Item 9 Multiple ultrasonic probes, A method of operating a device for treating dementia, comprising an ultrasonic transducer disposed in an ultrasonic probe and transmitting unfocused ultrasonic energy to the brain, and an ultrasonic generator connected to the ultrasonic probe. Because A method comprising the steps of an ultrasonic transducer disposed in an ultrasonic probe generating unfocused ultrasonic energy under the control of an ultrasonic generator.
- Item 10 Multiple ultrasonic probes, Built in a device for treating dementia, which is placed in an ultrasound probe and has an ultrasound transducer that transmits unfocused ultrasound energy to the brain and an ultrasound generator connected to the ultrasound probe.
- a program A program that causes an ultrasonic transducer disposed in an ultrasonic probe to execute a function of generating unfocused ultrasonic energy under the control of an ultrasonic generator.
- Item 11 Placed in an ultrasound probe using multiple ultrasound probes, an ultrasound probe placed in an ultrasound probe and transmitting unfocused ultrasound energy to the brain, and an ultrasound generator connected to the ultrasound probe
- a method for treating dementia comprising the step of transmitting unfocused ultrasonic energy generated from a formed ultrasonic transducer to a patient's brain.
- ultrasonic energy can be transmitted over a wide range of the brain, and dementia can be treated by causing angiogenesis, neuron increase, and the like. Therefore, according to the present invention, it is possible to provide a new method for treating dementia, which is different from conventional drug treatment and the like.
- FIG. 1 shows a schematic diagram of an exemplary embodiment of the apparatus of the present invention.
- a schematic cross-sectional view of an ultrasonic probe is shown.
- 1 shows a schematic diagram of ultrasonic energy diffusion in one embodiment of the present invention.
- diffuses in the reverse taper shape gradually diameter-expanded toward a radial direction is shown.
- Figure 2 shows a schematic view of an embodiment in which two ultrasonic probes are placed in the temporal region
- Fig. 4 shows an ultrasonic waveform in one embodiment.
- An illustration of ISPPA and ISPTA is shown.
- position) of this invention method is shown.
- Top of Fig. 8 Sitting position Actually wearing a fixing headband to fix the probe.
- Example 1-1 A schematic diagram of the test method of Example 1-1 is shown. -Irradiation 3 times every other day for 1 week after BCAS operation: 20 minutes x 3 times / day. ⁇ Compare the degree of cerebral blood flow (CBF) of each group using a laser speckle device. -Conducted a cognitive behavioral test at Day 28 after surgery. ⁇ Day 3, 7, 28 sampling for tissue and biochemical analysis The outline and results of Example 1-1 are shown. Cognitive behavior test: About suppression of cognitive decline by LIPUS treatment.
- Results of Y-maze test (method of evaluating cognitive function using the behavior of a mouse that selects a path different from the path of A ⁇ B ⁇ C if it is normal cognitive function)
- the result of Example 1-1 is shown.
- the result of Example 1-1 is shown.
- the result of Example 1-1 is shown.
- Oligodendrocyte progenitor cells are more abundant compared to the untreated group even one month after surgery
- the results of Example 1-1 OPCs, evaluation of dividing cells
- Example 1-2 A schematic diagram of the test method of Example 1-2 is shown. ⁇ From 3 months old, once a month: 20 minutes ⁇ 3 times / day. ⁇ Sacrifice after cognitive behavior test at 6 months of age. ⁇ Irradiation conditions are the same as BCAS model The outline and results of Example 1-2 are shown. Cognitive function evaluation: About suppression of cognitive function decline by LIPUS treatment. Results of Y-maze test (method of evaluating cognitive function using the behavior of a mouse that selects a path different from the path of A ⁇ B ⁇ C if it is normal cognitive function) The result (accumulation of amyloid ⁇ in the tissue) of Example 1-2 is shown.
- Example 2 the schematic explanatory drawing at the time of irradiating the ultrasonic irradiation start from one probe and the ultrasonic irradiation start from another probe at intervals of 0.3 ms is shown (examination using human skull. Bone density / Relationship between bone thickness and ultrasound transmission). The slopes coincided by chance at 0.5 MHz and 1.0 MHz. It is thought that only the thickness needs to be considered. Therefore, the transmittance can be predicted from the thickness. The test result about the relationship between the bone density or the bone thickness in Example 2 and ultrasonic transmission is shown. Explanatory drawing regarding the irradiation angle examination for transmitting an ultrasonic wave to the wide range of the brain in Example 2 is shown.
- FIG. 5 is an explanatory diagram regarding an irradiation angle examination for transmitting ultrasonic waves over a wide range of the brain in Example 2 (calculations that provide a basis for the element curvature radius; ideal ideal estimated from head height, head width, and head length of a human skull Irradiation range: In this case, the lens should have a bulge of 15 mm, and a required irradiation angle of 60 ° to 90 ° is assumed.
- the treatment schedule in Example 3-1 is shown.
- the result of Example 3-1-1 is shown.
- the result of Example 3-1-2 is shown.
- the treatment schedule in Example 3-2 is shown.
- the result of Example 3-2-1 is shown.
- the result of Example 3-2-2 is shown.
- the result of Example 4-1 is shown.
- the result of Example 4-2 is shown.
- the result of Example 4-3 is shown.
- the result of Example 4-3 is shown.
- the present invention is an apparatus for treating dementia comprising: Multiple ultrasonic probes, An ultrasonic transducer placed in an ultrasonic probe and transmitting unfocused ultrasonic energy to the brain; An apparatus comprising an ultrasonic generator connected to an ultrasonic probe.
- the “device for treating dementia” may be simply referred to as a dementia treatment device.
- “dementia” includes cerebrovascular dementia, Alzheimer's dementia, and symptoms showing both of these.
- the term “dementia” includes symptoms such as mild cognitive impairment.
- FIG. 1 shows a schematic diagram of an exemplary embodiment of the apparatus of the present invention.
- the dementia treatment apparatus of the present invention includes a plurality of ultrasonic probes 1 and an ultrasonic generator 2 connected to the ultrasonic probe 1.
- FIG. 2 shows a schematic diagram of an ultrasonic probe.
- An ultrasonic probe 3 for transmitting unfocused ultrasonic energy to the brain is disposed in the ultrasonic probe.
- a single ultrasonic transducer 3 is arranged for one ultrasonic probe 1 as shown in FIG. Electricity is transmitted from the ultrasonic generator 2 to the ultrasonic vibrator 3 through wiring or the like (not shown), and a voltage is applied thereto, whereby the ultrasonic vibrator 3 vibrates.
- the frequency, time, timing and the like of the vibration of the ultrasonic transducer 3 are controlled by the ultrasonic generator 2. Moreover, the same ultrasonic transducer
- vibrator 3 can be made to act as an ultrasonic receiving element by switching the control signal from the ultrasonic generator 2.
- the ultrasonic wave irradiation surface of one ultrasonic transducer is formed in a convex curved surface shape so that the direction of the ultrasonic wave becomes a non-focusing direction, or a plurality of ultrasonic transducers are arranged in a convex curved surface shape.
- unfocused ultrasonic energy means ultrasonic energy that diffuses without focusing on one point or a single line.
- the unfocused ultrasonic energy is diffused in an inversely tapered shape that gradually expands in the radial direction.
- the spreading angle of the inclined surface of the inversely tapered unfocused ultrasonic energy that expands the diameter is preferably 50 ° to 100 °, and more preferably 60 ° to 90 °.
- the ultrasonic energy is diffused in a generally conical shape (the bottom portion can be a curved surface) as shown in FIG. FIG.
- the angle at which the inclined surface of the inversely tapered unfocused ultrasonic energy expanding in diameter means ⁇ in FIG.
- the amplitude (sound pressure) of the irradiated ultrasonic wave is a low intensity of, for example, 3.0 MPa or less, more preferably 0.7 MPa or less, from the viewpoint of promoting angiogenesis, neuron increase, etc. by gentle ultrasonic stimulation. It is preferable.
- the lower limit of the intensity of irradiated ultrasonic waves is not particularly limited, but from the viewpoint of therapeutic effectiveness, for example, 0.1 MPa or more, preferably 0.2 MPa or more is preferable.
- the frequency of the ultrasonic intensity irradiation ultrasonic wave (Frequency) is not particularly limited, but can be appropriately set in the range of 0.5 to 1.5 MHz, preferably 0.5 to 1.0 MHz, for example.
- the material of the ultrasonic vibrator is not particularly limited as long as it can generate the unfocused ultrasonic energy.
- resin noryl resin, polyacetal, ionomer resin, urethane resin, etc.
- metal Copper alloy etc.
- the size of the ultrasonic wave generating portion of the ultrasonic probe is not particularly limited.
- the diameter is 1.0-5. 0 cm is preferable, and 2.0 to 4.0 cm is more preferable.
- the shape of the probe generating ultrasonic wave in the probe is not particularly limited, and is substantially circular, substantially elliptical, polygonal (triangle, quadrilateral (square, rectangular, parallelogram, trapezoid, etc.), pentagon, hexagon, Heptagon, octagon, etc.) can be designed as appropriate.
- the dimensions can be set as appropriate, for example, with dimensions corresponding to those described above for the substantially circular shape so that the ultrasonic waves are transmitted to a wider field of the brain.
- ultrasonic waves can be transmitted to a wider area of the brain by using a plurality of ultrasonic probes and irradiating unfocused ultrasonic energy from different parts of the head.
- ultrasonic energy irradiated from a plurality of locations is transmitted redundantly in the brain, and as a result, excessive ultrasonic energy is transmitted into the brain.
- the ultrasonic generator controls the ultrasonic transducer so as to sequentially irradiate non-focused ultrasonic energy between a plurality of ultrasonic probes.
- ultrasonic waves are generated by a certain ultrasonic probe among the plurality of ultrasonic probes, while other ultrasonic probes are used. No ultrasonic waves are generated in the next, and then ultrasonic waves are generated by another ultrasonic probe, while no ultrasonic waves are generated by other ultrasonic probes, and so on. This means that there is only one ultrasonic probe that generates ultrasonic waves in the same time zone, in other words, that no ultrasonic waves are generated simultaneously from two or more.
- the ultrasonic wave generated from the ultrasonic probe is transmitted through the skull, transmitted to the brain, reflected by the skull on the opposite side from where the ultrasonic probe is placed, and directed in the direction of the ultrasonic probe. Retransmit. Then, the reflected ultrasonic wave is reflected again by the skull on the side where the ultrasonic probe is arranged and transmitted. During this time, the ultrasound attenuates when propagating through the brain and reflecting off the skull. In this way, the ultrasonic waves generated from the ultrasonic probe reciprocate a plurality of times in the brain while being attenuated each time it is reflected by the skull.
- the irradiation wave or reflected wave of the unfocused ultrasonic energy generated from a certain ultrasonic probe is attenuated, and the following It is preferable that the generation intervals of ultrasonic waves from a plurality of ultrasonic probes are spaced so as not to cause excessive ultrasonic stimulation even if they overlap with the unfocused ultrasonic energy generated from the ultrasonic probe.
- unfocused ultrasonic energy irradiation by a plurality of ultrasonic probes is 0.15 / f (f represents the frequency (MHz) of a pulse to be transmitted) ms or more, more preferably 0. It is preferable to carry out with an interval of 30 / fms or more. Further, from the viewpoint of obtaining a higher therapeutic effect in a short time, non-focused ultrasonic energy irradiation by a plurality of ultrasonic probes is 0.60 / f (f (MHz) is as described above) ms or less, more preferably 0. It is preferable to carry out at intervals of 30 / fms or less.
- “Frequency” means the frequency of transmission ultrasonic waves.
- the interval between unfocused ultrasonic energy irradiations starts ultrasonic irradiation from an ultrasonic probe, stops ultrasonic irradiation from the ultrasonic probe,
- the interval between unfocused ultrasonic energy irradiations starts ultrasonic irradiation from an ultrasonic probe, stops ultrasonic irradiation from the ultrasonic probe.
- the irradiation ultrasonic wave is a non-continuous wave
- the number of cycles is not particularly limited, but can be appropriately set within a range of, for example, 1 to 64 cycles, preferably 24 to 40 cycles.
- the number of cycles of ultrasonic waves indicates the number of cycles within the width from the start of ultrasonic irradiation to the stop of ultrasonic irradiation (also referred to as pulse width in this specification). For example, in the case of the ultrasonic wave having the waveform shown in FIG. 6, the number of cycles is 32 cycles.
- the treatment time by ultrasonic waves is not particularly limited, but can be appropriately set within a range of 1 to 60 minutes, preferably 15 to 25 minutes per treatment depending on, for example, the patient's symptoms and the intensity of ultrasonic waves.
- the number of treatments per day is not particularly limited, but can be appropriately set within a range of, for example, 1 to 4 times, preferably 2 to 3 times.
- the frequency of performing the above treatment is not particularly limited, and can be appropriately set within a range of, for example, 1 to 7 times, preferably 2 to 3 times per week.
- the treatment interval is not particularly limited. For example, when the treatment at the above frequency is performed for 5 to 10 days (more preferably, 6 to 8 days) as one set of treatment, it is continued unless an adverse event occurs. Therefore, it is preferable to carry out at intervals of once every 1 to 4 months (for example, once every 1 to 3.5 months).
- Ultrasonic intensity can be adjusted by ISPPA, ISPTA or the like.
- ISPPA indicates the average intensity within the pulse width.
- ISPTA indicates the average intensity within the repetition period.
- FIG. 7 illustrates ultrasonic ISPPA and ISPTA.
- the ISPTA of the irradiation ultrasonic wave is not particularly limited, but from the viewpoint of promoting angiogenesis, neuron increase, etc. by gentle ultrasonic stimulation, for example, 720 mW / cm 2 or less, preferably 100 to 150 mW / cm 2 as appropriate. Can be set.
- ISPTA is expressed as the sum of ISPTA of irradiation ultrasonic waves of each ultrasonic probe.
- the duty ratio (DutyCycle) of the irradiation ultrasonic waves is not particularly limited, but can be appropriately set within a range of, for example, 0.1 to 50%, preferably 0.1 to 20%.
- the duty ratio indicates the ratio of the ultrasonic irradiation time in one cycle of irradiating ultrasonic waves for a fixed time and stopping ultrasonic irradiation for a fixed time.
- the ratio of ultrasonic irradiation time to [ultrasound irradiation time + irradiation stop time] in one cycle is shown.
- the duty ratio is expressed as a sum of duty ratios of irradiation ultrasonic waves of the respective ultrasonic probes.
- the ultrasonic waves generated from the ultrasonic probe are significantly attenuated when passing through the skull. Further, the degree of attenuation varies depending on the thickness of the skull through which the ultrasonic wave is transmitted. Therefore, by inputting the skull thickness to the ultrasonic generator based on the head CT image taken at the time of diagnosis of dementia, an appropriate output estimation value is obtained based on the skull thickness value. Is preferably calculated and transmitted as therapeutic ultrasound.
- the ultrasonic generator includes an input unit that inputs a numerical value of the thickness of the skull, and a calculation unit that calculates an estimated value of an appropriate output from the input value.
- the plurality of ultrasonic probes further include an ultrasonic receiving element for receiving ultrasonic waves that are irradiated from each other and transmitted through the brain.
- an ultrasonic receiving element for receiving ultrasonic waves that are irradiated from each other and transmitted through the brain.
- the ultrasonic transducer can also be used as a receiving element by switching the control signal from the ultrasonic generator.
- an apparatus in which “a plurality of ultrasonic probes are further provided with an ultrasonic receiving element for receiving ultrasonic waves that are irradiated from each other and transmitted through the brain” is an ultrasonic probe.
- An apparatus that includes an ultrasonic transducer and uses the ultrasonic transducer as a receiving element is also included.
- an ultrasonic transducer provided in a part (for example, one ultrasonic probe) of a plurality of ultrasonic probes is used as a receiving element, and is provided in another ultrasonic probe.
- An ultrasonic transducer can be used as a transmitting element. Further, after a certain period of time, at least some of the transmitting elements / receiving elements of the plurality of ultrasonic transducers may be switched and used.
- the integrated value of the intensity of the received ultrasound is calculated by the means, and the therapeutic effect is evaluated using the integrated value as an index. When the integrated value reaches a predetermined value, the treatment with a certain effect is completed. You can evaluate that you did.
- output adjusting means for adjusting the output of the output ultrasonic wave according to the received intensity of the transmitted ultrasonic wave.
- the output adjusting means include a feedback means (processor) that reduces the output when the sound pressure of the ultrasonic wave received by the receiving element is equal to or higher than a predetermined value.
- the reference value for reducing the output is not particularly limited, but considering safety standards, for example, the sound pressure is 0.1 MPa or less, preferably It can be set appropriately at 0.05 MPa or less.
- the output can be set in advance to be reduced.
- the apparatus of this invention may be equipped with the document etc. which wrote down the procedure for performing the operating method or the treatment method of the apparatus of this invention mentioned later.
- a method of operating a device for treating dementia a method of treating dementia
- the present invention further comprises a plurality of ultrasound probes, An ultrasonic transducer placed in an ultrasonic probe and transmitting unfocused ultrasonic energy to the brain;
- a method of operating a device for treating dementia comprising an ultrasonic generator connected to an ultrasonic probe, comprising:
- a method is provided that includes the step of an ultrasonic transducer disposed in an ultrasonic probe generating unfocused ultrasonic energy under the control of an ultrasonic generator.
- the method of the present invention is performed with the ultrasonic probe 1 placed on the head.
- the place where the ultrasonic probe 1 is applied is not particularly limited, it is preferably applied to the temporal region (the temple) because the skull is relatively thin and can easily transmit ultrasonic waves to the brain.
- a gel may be appropriately applied to the ultrasonic wave generation portion of the ultrasonic probe 1 and / or the head portion to which the ultrasonic probe is applied.
- the ultrasonic probe 1 may be fixed by a hair band 4.
- the present invention uses a plurality of ultrasonic probes, an ultrasonic transducer that is arranged in an ultrasonic probe and transmits unfocused ultrasonic energy to the brain, and an ultrasonic generator connected to the ultrasonic probe. Also provided is a method for treating dementia, comprising the step of transmitting unfocused ultrasonic energy generated from an ultrasonic transducer disposed in an ultrasonic probe to a patient's brain.
- the present invention comprises a plurality of ultrasonic probes, Built in a device for treating dementia, which is placed in an ultrasound probe and has an ultrasound transducer that transmits unfocused ultrasound energy to the brain and an ultrasound generator connected to the ultrasound probe.
- a program Provided is a program that allows an ultrasonic transducer disposed in an ultrasonic probe to execute a function of generating unfocused ultrasonic energy under the control of an ultrasonic generator.
- the program of the present invention can be used to generate unfocused ultrasonic energy in a device for treating the above-mentioned dementia (a computer incorporated in the device).
- a device for treating the above-mentioned dementia a computer incorporated in the device.
- the present invention This program may cause the apparatus to execute a function of evaluating the therapeutic effect with ultrasound according to the reception intensity of the transmitted ultrasound. For example, the integrated value of the intensity of the received ultrasonic wave may be calculated, the integrated value may be used as an index, and this may be compared with a preset value to evaluate the level of the therapeutic effect.
- an integrated value of the intensity of the received ultrasonic wave may be calculated, and when the integrated value reaches a predetermined value set in advance, it may be evaluated that treatment with a certain effect has been completed.
- the apparatus may include a display unit for such evaluation.
- the program of the present invention may cause the apparatus (computer) to execute a function of displaying the evaluation obtained as described above on the display unit.
- the program of the present invention may cause the apparatus (computer) to execute an output adjustment function for adjusting the output of the output ultrasonic wave according to the reception intensity of the transmitted ultrasonic wave. More specifically, for example, when the sound pressure of the ultrasonic wave received by the receiving element is equal to or higher than a predetermined value, a feedback unit (processor) that reduces the output may perform output adjustment.
- the connection between the ultrasonic probe and the ultrasonic generator may be wired as shown in FIG. 1 or may be wireless.
- the number of ultrasonic probes has been described in the embodiment using two ultrasonic probes, three or more ultrasonic probes may be used.
- two ultrasonic probes can be applied to both heads (the temples), and another ultrasonic probe can be applied to the boundary (large occipital hole) between the occipital region and the neck portion to perform ultrasonic irradiation.
- Example 1 Verification of Dementia Treatment Effect by Ultrasound Treatment
- Example 1-1 Vascular Dementia Model (BCAS (Bilateral Common Carotid Artery Synthesis) Model)
- BCAS Bolateral Common Carotid Artery Synthesis
- subcortical vascular dementia which accounts for the majority of vascular dementia
- chronic cerebral ischemia is considered an important pathologic mechanism.
- cerebral ischemia persists for a long period of time, white matter lesions similar to those of humans are formed, resulting in higher order dysfunction. Therefore, at present, it is the most standard vascular dementia model. Therefore, in this example, ultrasonic irradiation was performed on the entire brain of the BCAS model, and the therapeutic effect on dementia was verified.
- Ultrasonic irradiation was performed 3 times a week after the BCAS operation [1 day after the BCAS operation (1 day), 3 days (3 day), 5 days (5 day)]. Ultrasonic irradiation was performed 3 times for 20 minutes per day.
- CBF cerebral blood flow
- Irradiation conditions were as follows, and an ultrasonic wave probe having an area of 3.75 cm 2 (1.5 cm ⁇ 2.5 cm) was used to transmit ultrasonic waves to the entire brain of the model. Irradiation conditions: Strength (ISPTA): 100 mW / cm 2 ⁇ Frequency: 1.875MHz Number of cycles (Number of Cycles): 32 cycles ⁇ Repetition frequency: 6 kHz FIG. 9 shows the outline of this test. The result of the cognitive behavior test is shown in FIG.
- “Number of entries” is the total number of intrusions to the arm
- “Spontaneous Alternation” is the spontaneous alternation behavior of the mouse ([number of times the arm entered three different arms] / [all the arms of the Y-shaped maze] 2)).
- Ultrasound treatment significantly suppressed cognitive decline in the cognitive behavioral test.
- FIG. 11 Evaluation of white matter lesion (corpus callosum) As shown in FIG. 11, ultrasonic treatment significantly retained the myelin sheath structure and increased the number of mature oligodendrocytes forming the myelin sheath.
- a KB-stained image of the corpus callosum is shown to the left of FIG. 11 “Preservation of brain sheath structure by LIPUS treatment”.
- white meter region indicates the degree of white matter demyelinating lesion in the corpus callosum.
- the number of GST-p positive cells on the vertical axis indicates the number of mature oligodendrocytes per unit area.
- ultrasonic treatment significantly retained the myelin sheath structure and increased the number of mature oligodendrocytes forming the myelin sheath.
- DCX fluorescence immunostaining images are shown in “Increase of juvenile neurons in LIPUS group” on FIG.
- the CD31 immunostaining image in the hippocampus is shown to the left of “Increase in hippocampal capillaries by LIPUS treatment” below FIG.
- the number of CD31 positive cells on the vertical axis indicates the number of capillaries per unit area.
- juvenile neurons increased in the hippocampus, and capillaries also increased.
- FIG. 13 shows the Ki67 immunostained image on the upper left and the Olig2 immunostained image on the lower left.
- the number of Ki67 positive cells and the number of Olig2 positive cells on the vertical axis indicate the numbers of cells undergoing cell division and oligodendrocyte precursor cells, respectively. Therefore, FIG. 13 shows the tissue evaluation in the acute phase, but the number of proliferating cells of the corpus callosum was increased by the ultrasonic treatment, and Olig2-positive cells were also increased. Therefore, it was confirmed by fluorescent double immunostaining whether or not oligodendrocyte progenitor cells are dividing and proliferating.
- oligodendrocyte progenitor cells OPCs
- the Olig2 immunostaining image in the corpus callosum is shown on the left of FIG.
- the number of Olig2-positive cells on the vertical axis indicates the number of oligodendrocyte precursor cells 28 days after the operation. Therefore, as shown in FIG. 14, the OPCs increased significantly in the ultrasonic treatment group even at one month after the operation, suggesting that the effect was sustained.
- FIG. 15 shows Olig2 immunostained images and Ki67 immunostained images 3 days after surgery in the hippocampus. As shown in FIG. 15, in the hippocampus, Olig2-positive cells and Ki67-positive cells are in an increasing tendency, and the results are consistent with the results of FIG. From the above, it was suggested that the proliferation of OPCs in the corpus callosum, angiogenesis in the hippocampus and the increase in juvenile neurons have an effect on cognitive improvement.
- Example 1-2 Alzheimer's disease model (genetic modification) Using a genetically modified mouse (5XFAD) which is an Alzheimer's disease mouse model, ultrasonic treatment was performed in the same manner as the BCAS model according to the protocol described in FIG. In the 5XFAD model, one set of ultrasonic treatment was performed once a month, and observation was performed until 6 months of age.
- 5XFAD genetically modified mouse
- FIG. 17 results are shown in FIG. 17 and FIG.
- FIG. 18 shows a 4G8 immunostaining image (amyloid ⁇ staining). As shown in FIG. 18, it was suggested that the accumulation of amyloid ⁇ may be reduced by ultrasonic treatment.
- eNOS endothelial nitric oxide synthase
- Example 2 Examination of Ultrasonic Irradiation Method in Human Considering Safety Safety standards for ultrasonic irradiation include the following. (1) Global maximum acoustic output (AO) is recommended to 720mW / cm 2 or less (2) Tyles's stated limit is therefore recommended to 500mW / cm 2 or less, in the following discussion, ISPTA, 250mW / cm 2 or less of the range I went there.
- AO Global maximum acoustic output
- the human skull was used to verify factors that could clinically affect the intensity of therapeutic ultrasound.
- the temporal bones of 7 to 96-year-old men and women who were donated were collected and measured for bone density and bone thickness.
- the test was performed at 0.5 MHz and 1.0 MHz. As a result, at 0.5 MHz, the correlation coefficient between permeability and bone thickness was -0.53, and the correlation coefficient between bone density and permeability was 0.30. At 1.0 MHz, the correlation coefficient between permeability and bone thickness was -0.88, and the correlation coefficient between permeability and bone density was -0.30. Based on these data, for example, a multivariate analysis was performed for 1.0 MHz. P ⁇ 0.001 was significant for permeability and bone thickness, but significant for permeability and bone density. From this result, it was considered that only the “bone thickness” should be considered as a parameter on the patient side.
- Adjusted R-squared (degree-of-freedom corrected coefficient of determination) at this time was 0.7472, and it was considered possible to predict the permeability from the bone thickness.
- a regression analysis showed a correlation between bone thickness and ultrasonic transmission.
- FIG. 19 shows the results of further multivariate analysis. There was no correlation between bone density and ultrasonic transmission, and a significant correlation was observed between bone thickness and ultrasonic transmission, and 1.0 MHz. In the result, it was shown that the R-squared is high and the transmittance can be predicted from the thickness value. That is, in transcranial ultrasonic irradiation, it was shown that only the bone thickness is a necessary factor as a patient parameter.
- the transmittance of the ultrasonic wave by one bone-brain transmission is 25 to 50% as a power ( (Amplitude is 50 to 70%) (FIG. 20). Therefore, the power of the ultrasonic wave irradiated from the ultrasonic probe has already been attenuated by 25 to 50% when it reaches the brain.
- the ultrasonic absorption of the brain becomes stronger as the frequency becomes higher (about 1 dB / cm / MHz).
- the power becomes 1/100 when it is attenuated by 20 dB, so 0.2 dB / cm at 0.5 MHz (see the table on Ultrasonic Handbook, Maruzen Publishing Co., Ltd., 1999, p. 731).
- the attenuation of the ultrasonic wave by one bone-brain transmission is about half to 70% in amplitude, and in this case, the power corresponds to 25% to 50%. From this, it can be considered that there is no problem even if irradiation is performed at intervals of 0.3 ms (power is reduced by half through bones, and power is reduced by 1/50 by brain attenuation).
- ultrasonic waves can be transmitted to the entire brain by irradiating with ultrasonic waves (FIG. 23) such that the angle at which the inclined surface spreads becomes 77 °.
- Example 3 Tests to Support Device Efficacy This device demonstrates efficacy against two major pathologies of dementia, Vascular Dementia (VaD) and Alzheimer's Disease (AD).
- VaD Vascular Dementia
- AD Alzheimer's Disease
- VaD model mice bilateral carotid artery stenosis (BCAS) mice were prepared and distributed to the LIPUS group (treatment group) or the Control group (non-treatment group), and BCAS surgery was performed. On the next day, the entire brain was set to be irradiated with LIPUS, and treatment intervention was performed according to the schedule shown in FIG. After treatment with LIPUS, the course was observed until 28 days after surgery, and cerebral blood flow was measured and cognitive behavioral tests were performed. In addition, whole brain tissues were evaluated using biochemical analysis and tissue immunostaining based on the comprehensive analysis by RNA-sequence and Bio-plex.
- Olig2 is oligodendrocyte transcription factor 2
- eNOS is endothelial nitric oxide synthase
- CXCR4 is CXC chemokine receptor 4
- FGF2 is fibroblast growth factor 2
- VEGF is vascular endothelial growth factor
- BDNF brain-derived
- the neurotrophic factor, NGF is a nerve growth factor.
- AD models Effectiveness and safety against AD were confirmed using 5XFAD gene-modified mice as AD models.
- the evaluation method was performed according to the VaD model.
- the LIPUS group (treatment group) or the Control group (non-treatment group) was assigned, and the entire brain was set to be irradiated with LIPUS, and therapeutic intervention was performed according to the schedule shown in FIG. After treatment with LIPUS, the course was observed until 28 days after surgery, and cerebral blood flow was measured and cognitive behavioral tests were performed.
- whole brain tissues were evaluated using biochemical analysis and tissue immunostaining based on the comprehensive analysis by RNA-sequence and Bio-plex.
- the transmittance increases as the frequency decreases.
- Y ⁇ 0.098x + 0.59, expected transmission 60.6% at 2 cm skull; 0.5 MHz
- y ⁇ 0.098x + 0.78, expected transmission at 2 cm skull 41.6%; 1.0 MHz
- FIG. 19 Although it is a report of focused ultrasound, it shows the relationship between frequency, mechanical index (MI), and thermal index (TI), and it is 99mW / cm 2 in a basic study with a mouse that has been found effective.
- the condition frequency was around 0.5 MHz.
- increased expression of VEGF was observed even at a frequency of 0.5 MHz (P ⁇ 0.05) (FIG. 30). From the above, it is considered that 0.5 MHz is optimal in consideration of transparency and safety.
- the treatment irradiation conditions were examined using cultured vascular endothelial cells. Ultrasound was applied to cultured vascular endothelial cells in the range of 0.05 to 2.2 MPa, which is a sound pressure that can be set with a convex vibrator, and mRNA expression of VEGF, FGF2, and eNOS was evaluated. The efficacy of this product is considered to correlate with the expression levels of VEGF, FGF2, and eNOS. In this study, the irradiation conditions are effective when these mRNA expression levels are significantly higher than those in the control group. It was judged.
- FIG. 32 it was shown that it is important to set the tissue amplitude to 0.05-0.5 MPa. In order to realize this sound pressure in brain tissue, it was estimated that the sound pressure directly under the element should be in the range of 0.1-1.5 MPa.
- Condition 1 Sound pressure just below the element 1.3 MPa (tissue amplitude 0.15 MPa), Total Duty ratio 5%
- Condition 2 Sound pressure just below the element 0.9 MPa
- the VEGF expression level was evaluated using cerebrovascular endothelial cells under the two conditions (tissue amplitude 0.1 MPa) and total duty ratio 10%. As a result, since the expression level of VEGF was significantly high in condition 1, it was determined that condition 1 was desirable as the treatment condition.
- the present invention that can provide a new method for treating dementia that is different from conventional drug treatment or the like is very useful.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
Description
項1.認知症を治療するための装置であって、
複数の超音波プローベと、
超音波プローベに配置され、脳に非集束超音波エネルギーを伝達する超音波振動子と、超音波プローベに接続された超音波発生装置と
を備える装置。
超音波プローベに配置され、脳に非集束超音波エネルギーを伝達する超音波振動子と、超音波プローベに接続された超音波発生装置と
を備えた、認知症を治療するための装置の作動方法であって、
超音波発生装置の制御により、超音波プローベに配置された超音波振動子が非集束超音波エネルギーを発生させる工程を含む、方法。
超音波プローベに配置され、脳に非集束超音波エネルギーを伝達する超音波振動子と、超音波プローベに接続された超音波発生装置と
を備えた、認知症を治療するための装置に内蔵されたプログラムであって、
超音波発生装置の制御により、超音波プローベに配置された超音波振動子が非集束超音波エネルギーを発生させる機能を実行させる、プログラム。
以下、図面を参照して本願発明を説明する。本発明は、認知症を治療するための装置であって、
複数の超音波プローベと、
超音波プローベに配置され、脳に非集束超音波エネルギーを伝達する超音波振動子と、
超音波プローベに接続された超音波発生装置と
を備える装置を提供する。
本発明は、さらに、複数の超音波プローベと、
超音波プローベに配置され、脳に非集束超音波エネルギーを伝達する超音波振動子と、
超音波プローベに接続された超音波発生装置と
を備えた、認知症を治療するための装置の作動方法であって、
超音波発生装置の制御により、超音波プローベに配置された超音波振動子が非集束超音波エネルギーを発生させる工程を含む、方法を提供する。
本発明は、複数の超音波プローベと、
超音波プローベに配置され、脳に非集束超音波エネルギーを伝達する超音波振動子と、超音波プローベに接続された超音波発生装置と
を備えた、認知症を治療するための装置に内蔵されたプログラムであって、
超音波発生装置の制御により、超音波プローベに配置された超音波振動子が非集束超音波エネルギーを発生させる機能を実行させる、プログラムを提供する。
実施例1-1 血管性認知症モデル (BCAS(Bilateral Common Carotid Artery Stenosis)モデル)
血管性認知症の過半数を占める皮質下血管性認知症では、慢性脳虚血が重要な病態機序と考えられている。BCASモデルでは、脳虚血が長期間持続すると、ヒトと同様な白質病変が形成され、高次機能障害が起きてくる。そのため、現時点では最もスタンダードな血管性認知症モデルである。従って、本実施例では、かかるBCASモデルの脳全体に対し超音波照射を行い、認知症の治療効果を検証した。
照射条件:
・強度(ISPTA):100mW/cm2
・周波数(Frequency):1.875MHz
・サイクル数(Number of Cycles):32cycles
・繰り返し周波数:6kHz
図9に本試験の概略を示す。認知行動テストの結果を図10に示す。ここで、Number of entriesとはarmへの総侵入数であり、Spontaneous Alternationとは、マウスの自発的交替行動([続けて3回異なるarmに入った回数]/[Y字迷路の全てのarmに侵入した回数-2])を示す。超音波治療は、認知行動テストで有意に認知機能低下を抑制した。
図11に記載のように超音波治療により、有意に髄鞘構造が保持されるとともに、髄鞘を形成する成熟オリゴデンドロサイトの数も増加していた。図11「LIPUS治療による脳鞘構造の保持」の左に、脳梁のKB染色画像を示す。図11、その右のグラフにおいて、white matter lesionとは、脳梁における白質の脱髄病変の程度を示す。図11「LIPUS治療群における成熟オリゴデンドロサイトの増加」左に、脳梁のGST-p免疫染色画像を示す。図11のその右のグラフにおいて、縦軸のGST-p陽性細胞数とは、単位面積あたりの成熟オリゴデンドロサイトの数を示す。図11に記載のように超音波治療により、有意に髄鞘構造が保持されるとともに、髄鞘を形成する成熟オリゴデンドロサイトの数も増加していた。図12上の「LIPUS群での幼若ニューロンの増加」に、DCX蛍光免疫染色画像を示す。図12下、「LIPUS治療による海馬毛細血管の増加」の左に、海馬でのCD31免疫染色画像を示す。図12下、その右のグラフにおいて、縦軸のCD31陽性細胞数とは、単位面積あたりの毛細血管数を示す。図12のように海馬において幼若なニューロンが増加しており、また毛細血管も増加していた。
アルツハイマー病マウスモデルである遺伝子改変マウス(5XFAD)を用い、図16記載のプロトコルに従って、BCASモデルと同様に超音波治療を行った。5XFADモデルでは、毎月一回1セットの超音波治療を行い、6ヶ月齢まで観察を行った。
超音波照射の安全基準としては、下記のようなものがある。
(1)Global maximum acoustic output(AO) が推奨する720mW/cm2以下
(2)Tyles’s stated limitが推奨する500mW/cm2以下
従って、以下の検討では、ISPTA、250mW/cm2以下の範囲で行った。
本機器は認知症の主要な二つの病態である脳血管性認知症(Vascular Dementia;VaD)、アルツハイマー型認知症(Alzheimer’s Disease;AD)に対する有効性を明らかにするため、それぞれのマウスモデルを用いて検討を行った。以下、本機器における主要な有効性を示す結果である。これらの結果のうち、臨床においてもend pointとなるであろう認知機能試験と、その機序検討において最も重要な因子であると考えられた脳血流の結果をグラフと併せて示す。
VaDモデルとして両側頸動脈狭窄(Bilateral Common Carotid Artery Stenosis;BCAS)マウスを作製し、LIPUS群(治療群)もしくはControl群(非治療群)に振り分け、BCAS術後翌日から脳全体にLIPUSが照射されるよう設定し、図24に示すスケジュールで治療介入を行った。LIPUS治療後は、術後28日まで経過を観察し、脳血流の測定や認知行動試験を行った。また、全脳組織を用いてRNA-sequenceやBio-plexによる網羅解析を足掛かりとした生化学的分析、組織免疫染色による評価を行った。
治療介入後、2時間後、4日後、28日後に脳血流の測定を行ったところ、LIPUS群で脳血流の低下を有意に抑制した(図25)(n=9-10、Sham;n=20-25、BCAS)(*P<0.05;***P<0.0005;二元配置ANOVA、多重t検定)。全ての結果は平均値±標準誤差で表記した。
治療介入28日後にY迷路試験及び受動的回避試験を行ったところ、LIPUS群で有意に認知機能の低下を抑制した(図26A、図26B)(Sham;n=12-16、BCAS;n=13-17)(*P<0.05、**P<0.005;二元配置ANOVA、多重t検定)。全ての結果は平均値±標準誤差で表記した。また、この効果は術後3か月まで維持された(P<0.05)。
超音波治療により血管新生・オリゴデンドロサイト前駆細胞関連遺伝子の有意な発現亢進を認めた(Olig2;P<0.05、eNOS;P<0.05、CXCR4;P<0.05、FGF2;P<0.05)。またウェスタンブロッティングによる解析では血管新生分子を中心に有意な発現の亢進を認める(eNOS;P<0.05、CXCR4;P<0.05、FGF2;P<0.005、VEGF;P<0.05)とともに、神経栄養因子の有意な発現の亢進も認めた(BDNF;P<0.05、NGF;P<0.05)。ここで、Olig2はオリゴデンドロサイト転写因子2、eNOSは内皮型一酸化窒素合成酵素、CXCR4はCXCケモカイン受容体4、FGF2は線維芽細胞成長因子2、VEGFは血管内皮増殖因子、BDNFは脳由来神経栄養因子、NGFは神経成長因子である。
超音波治療によって白質障害が低減し(P<0.05)、血管新生・オリゴデンドロサイト前駆細胞の増殖が促進された(それぞれP<0.05)。また、幼若な神経細胞が増加した(P<0.05)。
ADモデルとして5XFAD遺伝子改変マウスを用いて、ADに対する有効性・安全性を確認した。評価方法はVaDモデルに準じて行った。LIPUS群(治療群)もしくはControl群(非治療群)に振り分け、脳全体にLIPUSが照射されるよう設定し、図27に示すスケジュールで治療介入を行った。LIPUS治療後は、術後28日まで経過を観察し、脳血流の測定や認知行動試験を行った。また、全脳組織を用いてRNA-sequenceやBio-plexによる網羅解析を足掛かりとした生化学的分析、組織免疫染色による評価を行った。
初回治療から3か月の時点で、LIPUS群において脳全体での血流が有意に保持された(図28)(各群n=14)(*P<0.05、t検定)。全ての結果は平均値±標準誤差で表記した。
治療介入後、Y迷路試験を行ったところ、初回治療から3か月後にLIPUS群で有意に認知機能低下を抑制した(図29)(各群n=18)(***P<0.0005、t検定)。全ての結果は平均値±標準誤差で表記した。
LIPUS群で有意にeNOSや神経栄養因子の発現が亢進した(eNOS;P<0.05、BDNF;P<0.05、NGF;P<0.05)とともに、アミロイドβ(42)が低下した(P<0.05)。
超音波治療によって脳全体におけるアミロイドβ(42)の蓄積が有意に減少した(P<0.05)。また、ミクログリオーシスが有意に減少(P<0.05)するとともに血管新生が促進される傾向を認めた(P=0.19)。
4-1 至適な周波数条件の検討
ヒト側頭骨(治療機器外挿予定部位)を用いた超音波の透過性評価において、透過率は周波数が低いほど高値であった(y=-0.098x+0.59、頭蓋骨2cmでの予想透過率 60.6%;0.5MHz、y=-0.098x+0.78、頭蓋骨2cmでの予想透過率 41.6%;1.0MHz)(図19)。また、集束超音波の報告ではあるが、周波数とメカニカルインデックス(MI)、サーマルインデックス(TI)の関係について示されており、有効性の見られたマウスによる基礎的検討での99mW/cm2の条件に近く、脳内でキャビテーションが発生しない条件(MI値0.25;よりワーストケースでの水中におけるキャビテーション発生条件MI値=1.0の4分の1)かつ過度な温度上昇をしない(TIが2℃以上上昇しない)条件周波数は0.5MHz周辺であった。さらに、ヒト臍帯静脈内皮細胞を用いたin vitro実験において、0.5MHzの周波数においてもVEGFの発現の亢進を認めた(P<0.05)(図30)。以上のことから、透過性、安全性を考慮すると0.5MHzが最適であると考えられる。
ヒト臍帯静脈内皮細胞を用いたin vitro実験において、周波数を0.5MHzに固定し、Duty比を1%、20%、40%と条件を変えてVEGF発現の変動を評価した。その結果、Duty比1%および40%ではVEGFの発現亢進は認めなかったが、Duty比20%において有意なVEGFの発現亢進を認めた(P<0.05)(図31)。以上のことから、周波数0.5MHzにおいて、Duty比は20%付近が最適であると考えられるが、干渉波に関する安全性試算を踏まえると20%以下が望ましいことから、至適Duty比は20%(各プローブから10%)であると考えられる。
培養血管内皮細胞を用いて治療用照射条件の検討を行った。凸型振動子で設定可能な音圧である0.05-2.2MPaの範囲で、培養血管内皮細胞に超音波照射を行い、VEGF、FGF2、eNOSのmRNA発現を評価した。本品の有効性はVEGF、FGF2、eNOSの発現量に相関すると考えられ、本検討においてはこれらのmRNA発現量が対照群と比較して有意に高値である場合に有効な照射条件であると判断した。
2つの異なるADモデルマウスを用いた基礎的検討において、20分x3回の治療条件において有効性を認めた。また治療期間に関しては、脳血管性認知症モデルで治療後3か月までの経過観察を行ったところ、超音波治療群で認めた認知機能低下の抑制は、術後3か月まで維持された(P<0.05)。以上のことから、20分x3回、3か月ごとの治療が妥当であると考えられる。
Claims (10)
- 認知症を治療するための装置であって、
複数の超音波プローベと、
超音波プローベに配置され、脳に非集束超音波エネルギーを伝達する超音波振動子と、超音波プローベに接続された超音波発生装置と
を備える装置。 - 非集束超音波エネルギーが放射方向に向かって次第に拡径する逆テーパ状に拡散する、請求項1に記載の装置。
- 前記拡径する逆テーパ状の非集束超音波エネルギーの傾斜面の広がる角度が50°~100°である、請求項2に記載の装置。
- 超音波発生装置が、複数の超音波プローベの間で非集束超音波エネルギーを順次照射するように超音波振動子を制御する、請求項1~3のいずれか1項に記載の装置。
- 複数の超音波プローベによる非集束超音波エネルギー照射が、0.15/f(fは送信するパルスの周波数(MHz)を示す)ms以上の間隔を開けて行われる、請求項4に記載の装置。
- 当該複数の超音波プローベがさらに、互いに他の超音波プローベから照射され脳を透過した超音波を受信するための超音波の受信素子を備える、請求項1~5のいずれか1項に記載の装置。
- 透過した超音波の受信強度に応じて、超音波での治療効果を評価する手段をさらに備える、請求項6に記載の装置。
- 透過した超音波の受信強度に応じて、出力する超音波の出力を調整する出力調整手段をさらに備える、請求項6又は7に記載の装置。
- 複数の超音波プローベと、
超音波プローベに配置され、脳に非集束超音波エネルギーを伝達する超音波振動子と、超音波プローベに接続された超音波発生装置と
を備えた、認知症を治療するための装置の作動方法であって、
超音波発生装置の制御により、超音波プローベに配置された超音波振動子が非集束超音波エネルギーを発生させる工程を含む、方法。 - 複数の超音波プローベと、
超音波プローベに配置され、脳に非集束超音波エネルギーを伝達する超音波振動子と、超音波プローベに接続された超音波発生装置と
を備えた、認知症を治療するための装置に内蔵されたプログラムであって、
超音波発生装置の制御により、超音波プローベに配置された超音波振動子が非集束超音波エネルギーを発生させる機能を実行させる、プログラム。
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201880036297.3A CN110691628A (zh) | 2017-03-30 | 2018-03-30 | 治疗痴呆的装置、操作该装置的方法和程序 |
| EP18776558.1A EP3603747B1 (en) | 2017-03-30 | 2018-03-30 | Device for treating dementia and program |
| JP2019509409A JP7184365B2 (ja) | 2017-03-30 | 2018-03-30 | 認知症を治療するための装置、当該装置の作動方法及びプログラム |
| CN202410974958.4A CN118873860A (zh) | 2017-03-30 | 2018-03-30 | 治疗痴呆的装置、操作该装置的方法和程序 |
| ES18776558T ES3040430T3 (en) | 2017-03-30 | 2018-03-30 | Device for treating dementia and program |
| US16/498,428 US11890492B2 (en) | 2017-03-30 | 2018-03-30 | Device for treating dementia, method for operating said device, and program |
| JP2022183758A JP7478475B2 (ja) | 2017-03-30 | 2022-11-16 | 認知症を治療するための装置、当該装置の作動方法及びプログラム |
| US18/522,112 US20240091563A1 (en) | 2017-03-30 | 2023-11-28 | Device for treating dementia, method for operating said device, and program |
| JP2024001387A JP7761290B2 (ja) | 2017-03-30 | 2024-01-09 | 認知症を治療するための装置、当該装置の作動方法及びプログラム |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-067572 | 2017-03-30 | ||
| JP2017067572 | 2017-03-30 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US16/498,428 A-371-Of-International US11890492B2 (en) | 2017-03-30 | 2018-03-30 | Device for treating dementia, method for operating said device, and program |
| US18/522,112 Continuation US20240091563A1 (en) | 2017-03-30 | 2023-11-28 | Device for treating dementia, method for operating said device, and program |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018181991A1 true WO2018181991A1 (ja) | 2018-10-04 |
Family
ID=63678055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2018/013893 Ceased WO2018181991A1 (ja) | 2017-03-30 | 2018-03-30 | 認知症を治療するための装置、当該装置の作動方法及びプログラム |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US11890492B2 (ja) |
| EP (1) | EP3603747B1 (ja) |
| JP (3) | JP7184365B2 (ja) |
| CN (2) | CN118873860A (ja) |
| ES (1) | ES3040430T3 (ja) |
| WO (1) | WO2018181991A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023233475A1 (ja) * | 2022-05-30 | 2023-12-07 | サウンドウェーブイノベーション株式会社 | 認知症を治療するための方法 |
| WO2025013486A1 (ja) * | 2023-07-07 | 2025-01-16 | サウンドウェーブイノベーション株式会社 | 超音波治療装置 |
| WO2025041415A1 (ja) | 2023-08-22 | 2025-02-27 | サウンドウェーブイノベーション株式会社 | 超音波振動子及びそれを有する超音波治療装置 |
| EP4626016A1 (en) | 2023-08-22 | 2025-10-01 | Sound Wave Innovation Co., Ltd. | Ultrasonic vibrator and ultrasonic therapeutic apparatus having same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11850427B2 (en) | 2019-12-02 | 2023-12-26 | West Virginia University Board of Governors on behalf of West Virginia University | Methods and systems of improving and monitoring addiction using cue reactivity |
| US12453858B2 (en) | 2019-12-02 | 2025-10-28 | West Virginia University Board of Governors on behalf of West Virginia University | Neuromodulatory methods for improving addiction using multi-dimensional feedback |
| CN113289276A (zh) * | 2021-04-29 | 2021-08-24 | 深圳先进技术研究院 | 一种神经髓鞘刺激装置及其方法 |
| WO2022226902A1 (zh) * | 2021-04-29 | 2022-11-03 | 深圳先进技术研究院 | 一种神经髓鞘刺激装置及其方法 |
| CN113893469B (zh) * | 2021-09-15 | 2024-02-09 | 复旦大学 | 缓解阿霉素心脏毒性的低强度脉冲超声系统 |
| US12366583B2 (en) | 2022-10-24 | 2025-07-22 | West Virginia University Board of Governors on behalf of West Virginia University | Methods of improving neurodegenerative disorders by targeted delivery of therapeutic agents |
| JP2024104853A (ja) | 2023-01-25 | 2024-08-06 | 澁谷工業株式会社 | 容器殺菌装置 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008139645A1 (ja) * | 2007-05-02 | 2008-11-20 | Yoshio Shimotori | 脳神経系疾患予防装置 |
| JP2013503681A (ja) * | 2009-09-03 | 2013-02-04 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 対側アレイベースの経頭蓋超音波収差補正 |
| JP2013509958A (ja) * | 2009-11-04 | 2013-03-21 | アリゾナ・ボード・オブ・リージェンツ・フォー・アンド・オン・ビハーフ・オブ・アリゾナ・ステイト・ユニバーシティー | 脳活動を調節するための装置と方法 |
| JP2015517350A (ja) * | 2012-05-11 | 2015-06-22 | ザ・リージェンツ・オブ・ザ・ユニバーシティー・オブ・カリフォルニアThe Regents Of The University Of California | 野外にて脳卒中犠牲者の治療を開始し監視するための可搬式デバイス |
| WO2015192189A1 (en) * | 2014-06-20 | 2015-12-23 | The University Of Queensland | Neurodegenerative disease treatment |
| WO2016097867A2 (en) * | 2014-12-19 | 2016-06-23 | Université Pierre Et Marie Curie (Paris 6) | Implantable ultrasound generating treating device for brain treatment, apparatus comprising such device and method implementing such device |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1237487A4 (en) * | 1999-12-06 | 2010-11-03 | Simcha Milo | MEDICAL ULTRASONIC UNIT |
| US6733450B1 (en) * | 2000-07-27 | 2004-05-11 | Texas Systems, Board Of Regents | Therapeutic methods and apparatus for use of sonication to enhance perfusion of tissue |
| JP2004024668A (ja) | 2002-06-27 | 2004-01-29 | Hiroshi Furuhata | 経頭蓋超音波治療装置 |
| WO2005016216A2 (en) * | 2003-08-04 | 2005-02-24 | Non-Invasive Monitoring Systems, Inc. | Reciprocating movement platform for the external addition of pulses to the fluid channels of a subject |
| JP5597198B2 (ja) * | 2008-07-14 | 2014-10-01 | アリゾナ・ボード・オブ・リージェンツ・フォー・アンド・オン・ビハーフ・オブ・アリゾナ・ステイト・ユニバーシティ | 超音波を使用して細胞活動を調節するための方法およびデバイス |
| US9174065B2 (en) * | 2009-10-12 | 2015-11-03 | Kona Medical, Inc. | Energetic modulation of nerves |
| US20160001096A1 (en) * | 2009-11-11 | 2016-01-07 | David J. Mishelevich | Devices and methods for optimized neuromodulation and their application |
| WO2011101039A1 (en) * | 2010-02-22 | 2011-08-25 | Universite Pierre Et Marie Curie (Paris 6) | Apparatus for the treatment of brain affections and method implementing thereof |
| US8603014B2 (en) | 2010-10-05 | 2013-12-10 | Cerevast Therapeutics, Inc. | Hands-free operator-independent transcranial ultrasound apparatus and methods |
| US8613714B2 (en) | 2010-10-05 | 2013-12-24 | Cerevast Therapeutics, Inc. | Non-invasive transcranial ultrasound apparatus |
| US20140127329A1 (en) * | 2011-03-31 | 2014-05-08 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Use of nitrites for the treatment of cerebral amyloid angiopathy, age associated dementia, and cognitive decline |
| WO2013009787A2 (en) * | 2011-07-10 | 2013-01-17 | Guided Therapy Systems, Llc | Methods and systems for ultrasound treatment |
| WO2013152035A1 (en) * | 2012-04-02 | 2013-10-10 | Neurotrek, Inc. | Device and methods for targeting of transcranial ultrasound neuromodulation by automated transcranial doppler imaging |
| WO2013157011A2 (en) * | 2012-04-18 | 2013-10-24 | CardioSonic Ltd. | Tissue treatment |
| JP2016195618A (ja) * | 2013-09-18 | 2016-11-24 | 日本シグマックス株式会社 | 血管内皮機能障害を処置する装置、ならびにPLCγ1、ERK5またはERK1/2の活性化制御方法 |
| WO2016100353A1 (en) * | 2014-12-15 | 2016-06-23 | Vesselon, Inc. | Automated ultrasound apparatus and method for noninvasive vessel recanalization treatment and monitoring |
| US20160243381A1 (en) * | 2015-02-20 | 2016-08-25 | Medtronic, Inc. | Systems and techniques for ultrasound neuroprotection |
| KR101750294B1 (ko) * | 2015-09-17 | 2017-06-26 | 한국과학기술연구원 | 단일 뇌에 적용되는 뇌-뇌 인터페이스 시스템 |
| CN108136204B (zh) * | 2015-10-15 | 2020-10-30 | 法玛科技顾问股份有限公司 | 超音波刺激头盔 |
| CN105944243A (zh) * | 2016-05-12 | 2016-09-21 | 段俊丽 | 一种eNOS表达与活化的调控装置及周围动脉疾病的治疗装置 |
| CN106037723B (zh) * | 2016-05-17 | 2020-11-10 | 西安交通大学 | 用于经颅超声神经刺激的脑部电生理信号记录装置及方法 |
-
2018
- 2018-03-30 US US16/498,428 patent/US11890492B2/en active Active
- 2018-03-30 CN CN202410974958.4A patent/CN118873860A/zh active Pending
- 2018-03-30 EP EP18776558.1A patent/EP3603747B1/en active Active
- 2018-03-30 CN CN201880036297.3A patent/CN110691628A/zh active Pending
- 2018-03-30 JP JP2019509409A patent/JP7184365B2/ja active Active
- 2018-03-30 ES ES18776558T patent/ES3040430T3/es active Active
- 2018-03-30 WO PCT/JP2018/013893 patent/WO2018181991A1/ja not_active Ceased
-
2022
- 2022-11-16 JP JP2022183758A patent/JP7478475B2/ja active Active
-
2023
- 2023-11-28 US US18/522,112 patent/US20240091563A1/en active Pending
-
2024
- 2024-01-09 JP JP2024001387A patent/JP7761290B2/ja active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008139645A1 (ja) * | 2007-05-02 | 2008-11-20 | Yoshio Shimotori | 脳神経系疾患予防装置 |
| JP2013503681A (ja) * | 2009-09-03 | 2013-02-04 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 対側アレイベースの経頭蓋超音波収差補正 |
| JP2013509958A (ja) * | 2009-11-04 | 2013-03-21 | アリゾナ・ボード・オブ・リージェンツ・フォー・アンド・オン・ビハーフ・オブ・アリゾナ・ステイト・ユニバーシティー | 脳活動を調節するための装置と方法 |
| JP2015517350A (ja) * | 2012-05-11 | 2015-06-22 | ザ・リージェンツ・オブ・ザ・ユニバーシティー・オブ・カリフォルニアThe Regents Of The University Of California | 野外にて脳卒中犠牲者の治療を開始し監視するための可搬式デバイス |
| WO2015192189A1 (en) * | 2014-06-20 | 2015-12-23 | The University Of Queensland | Neurodegenerative disease treatment |
| WO2016097867A2 (en) * | 2014-12-19 | 2016-06-23 | Université Pierre Et Marie Curie (Paris 6) | Implantable ultrasound generating treating device for brain treatment, apparatus comprising such device and method implementing such device |
Non-Patent Citations (3)
| Title |
|---|
| "Ultrasound Handbook", 1999, MARUZEN PUBLISHING CO., LTD., pages: 731 |
| HANAWA K.SHIMOKAWA H ET AL., PLOS ONE, vol. 9, 2014, pages e104863 |
| SHIBATA M ET AL., STROKE, vol. 35, no. 11, November 2004 (2004-11-01), pages 2598 - 603 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023233475A1 (ja) * | 2022-05-30 | 2023-12-07 | サウンドウェーブイノベーション株式会社 | 認知症を治療するための方法 |
| WO2025013486A1 (ja) * | 2023-07-07 | 2025-01-16 | サウンドウェーブイノベーション株式会社 | 超音波治療装置 |
| WO2025041415A1 (ja) | 2023-08-22 | 2025-02-27 | サウンドウェーブイノベーション株式会社 | 超音波振動子及びそれを有する超音波治療装置 |
| EP4626016A1 (en) | 2023-08-22 | 2025-10-01 | Sound Wave Innovation Co., Ltd. | Ultrasonic vibrator and ultrasonic therapeutic apparatus having same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2024039053A (ja) | 2024-03-21 |
| EP3603747A1 (en) | 2020-02-05 |
| CN118873860A (zh) | 2024-11-01 |
| EP3603747A4 (en) | 2021-01-13 |
| EP3603747C0 (en) | 2025-08-20 |
| ES3040430T3 (en) | 2025-10-31 |
| US11890492B2 (en) | 2024-02-06 |
| US20200289855A1 (en) | 2020-09-17 |
| US20240091563A1 (en) | 2024-03-21 |
| JP2023009246A (ja) | 2023-01-19 |
| JPWO2018181991A1 (ja) | 2020-02-06 |
| EP3603747B1 (en) | 2025-08-20 |
| CN110691628A (zh) | 2020-01-14 |
| JP7184365B2 (ja) | 2022-12-06 |
| JP7478475B2 (ja) | 2024-05-07 |
| JP7761290B2 (ja) | 2025-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7761290B2 (ja) | 認知症を治療するための装置、当該装置の作動方法及びプログラム | |
| US11013938B2 (en) | Methods and systems for peripheral nerve modulation using non ablative focused ultrasound with electromyography (EMG) monitoring | |
| US7988648B2 (en) | Pancreas regeneration treatment for diabetics using extracorporeal acoustic shock waves | |
| Aptel et al. | Therapeutic applications of ultrasound in ophthalmology | |
| CN108136204B (zh) | 超音波刺激头盔 | |
| Charrel et al. | Development of a miniaturized HIFU device for glaucoma treatment with conformal coagulation of the ciliary bodies | |
| WO2014176483A1 (en) | Focused transcranial ultrasound systems and methods for using them | |
| US11020617B2 (en) | Methods and systems for peripheral nerve modulation using non ablative focused ultrasound with electromyography (EMG) monitoring | |
| US11389370B2 (en) | Treatments for blood sugar levels and muscle tissue optimization using extracorporeal acoustic shock waves | |
| JP2021534905A (ja) | 大型スポット網膜レーザ治療のための方法及びシステム | |
| KR102778813B1 (ko) | 초음파 트랜스듀서 및 그 제어방법 | |
| US20200147415A1 (en) | Methods and systems for selective modulation of motor neuronal activity in the peripheral nervous system | |
| US8905949B2 (en) | Device for ocular ultrasound therapy having a reflector | |
| Gao et al. | A transducer positioning method for transcranial focused ultrasound treatment of brain tumors | |
| Lizzi | High-precision thermotherapy for small lesions | |
| KR102525621B1 (ko) | 세타-버스트 초음파를 이용한 신경 가소성 조절 장치 및 조절방법 | |
| AU2017308587A1 (en) | Process for providing protective therapy for biological tissues or fluids | |
| US20240307710A1 (en) | Stimulator and method for applying acoustic energy in a target region on an individual | |
| Reinhardt et al. | Influence of the skull bone and brain tissue on the sound field in transcranial extracorporeal shock wave therapy: an ex vivo study | |
| US20250235377A1 (en) | Acoustic shock wave therapeutic methods to treat abnormal blood pressure | |
| US20240091562A1 (en) | Acoustic shock wave or pressure pulse treatment and methods of use for brain inflammation | |
| Sun et al. | Transcranial Ultrasound Stimulation | |
| CN120771462A (zh) | 光声协同近视调控装置、方法及近视治疗仪 | |
| US20130197400A1 (en) | System and method for determining the optimum size of an ultrasonic wave generation device | |
| Fu et al. | Acoustic motor cortex stimulation enhances the descending analgesic pathway to alleviate chronic pain in mice |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18776558 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2019509409 Country of ref document: JP Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2018776558 Country of ref document: EP Effective date: 20191030 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 2018776558 Country of ref document: EP |