WO2024122824A1

WO2024122824A1 - High-intensity focused ultrasonic wave generation device for focusing ultrasonic wave by using slit

Info

Publication number: WO2024122824A1
Application number: PCT/KR2023/014165
Authority: WO
Inventors: 이원주; 공은경; 황수민; 안철용; 강동환
Original assignee: 주식회사 제이시스메디칼
Priority date: 2022-12-09
Filing date: 2023-09-19
Publication date: 2024-06-13
Also published as: KR20240086213A

Abstract

A high-intensity focused ultrasonic wave generation device according to the present invention comprises an ultrasonic wave focusing module disposed in front of a transducer, the ultrasonic wave focusing module having a plurality of slits, so that ultrasonic waves emitted from the transducer can be diffracted, converted, and interfered by each other and thus focused to a predetermined ultrasonic wave focusing point. Therefore, the high-intensity focused ultrasonic wave generation device can non-invasively focus ultrasonic waves to a desired area and thus can more accurately treat a local area and be used to perform a medical procedure without a wound or scar. Moreover, various ultrasonic wave focusing points can be implemented according to the sizes or positions of the slits. In addition, the ultrasonic wave focusing plate is detachably coupled to the front side of the transducer, and the ultrasonic wave focusing plate can be replaced and applied according to a desired ultrasonic wave focusing point. Also, the ultrasonic wave focusing plate has a simple structure and can be easily installed.

Description

High-intensity focused ultrasound generator that focuses ultrasound using a slit

The present invention relates to a high-intensity focused ultrasound generator that focuses ultrasonic waves using a slit. More specifically, an ultrasonic focusing module with a slit is placed in front of a transducer to prevent diffraction and interference of ultrasonic waves using the slit. It relates to a high-intensity focused ultrasound generator that focuses ultrasonic waves through diffraction and interference of waves that can implement one or more ultrasonic focusing points by guiding them.

In general, a high-intensity focused ultrasound (HIFU) generator generates high-intensity ultrasound energy by focusing ultrasound generated from a transducer and irradiates it to the patient's affected area to increase the temperature of the affected area, thereby performing surgical procedures. It is a device that can treat the affected area without any treatment.

In a conventional high-intensity focused ultrasound generator, a plurality of transducers are mounted on the front of a concavely formed ultrasonic radiation frame to focus the ultrasound generated by the transducers to a preset position, thereby changing the direction of the focused ultrasound. Because it is very difficult and expensive, commercialization is difficult.

The purpose of the present invention is to provide a high-intensity focused ultrasonic wave generator that facilitates focusing of ultrasonic waves using wave diffraction and interference.

A high-intensity focused ultrasound generator that focuses ultrasonic waves using a slit according to the present invention includes a transducer that emits ultrasonic waves when power is applied; It is disposed in front of the transducer, is formed to allow ultrasonic waves emitted from the transducer to pass through, and at least one slit is formed to allow the ultrasonic waves to be diffracted while passing through, and at least one of the different phases. It converts the waves into waves having a , and includes an ultrasonic focusing module that induces interference of the converted waves and focuses the waves on a preset ultrasonic focusing point.

The ultrasonic focusing module is characterized in that the surface opposing the transducer is formed in a flat plate shape so as to simultaneously receive the ultrasonic waves emitted from the transducer.

The ultrasonic focusing module is characterized in that at least a portion of the surface facing the transducer is formed in a three-dimensional shape so that the separation distance from the transducer varies depending on the position.

Ultrasound waves that pass through the ultrasonic focusing module are converted into spherical waves.

The transducers include a plurality of transducers, and at least one of the plurality of transducers emits a plurality of ultrasonic waves having different phases, and the ultrasonic waves that pass through the ultrasonic focusing module are converted into spherical waves.

The separation distance between the transducer and the ultrasonic focusing module is set according to at least one of the diameter of the transducer and the wavelength of the ultrasonic waves.

Each size of the slit is set according to the wavelength of the ultrasonic waves.

A plurality of slits are formed to be spaced apart from each other, and at least some of the plurality of slits are formed to have different sizes.

A plurality of slits are formed to be spaced apart from each other, and the spacing between the plurality of slits is set according to the wavelength of the ultrasonic waves.

A plurality of slits are formed to be spaced apart from each other, and the plurality of slits are arranged to form at least one row and at least one column.

A plurality of slits are formed to be spaced apart from each other, and the plurality of slits are arranged radially from the center of the ultrasonic focusing module.

The slit has a cross-sectional shape of at least one of circular, polygonal, and round shapes.

The slit has a cross-sectional shape of at least one of a ring shape and an arc shape.

The slit is formed in a shape that expands or contracts in an outward direction from the center of the ultrasonic focusing module.

According to another aspect of the present invention, a high-intensity focused ultrasonic wave generator that focuses ultrasonic waves using a slit includes: an ultrasonic radiation frame in which a plurality of coupling holes are formed; Transducer holders are respectively inserted into the coupling holes in front of the ultrasonic radiation frame and are detachably coupled to penetrate the ultrasonic radiation frame; A plurality of transducers are mounted on the transducer holders with their front surfaces exposed, arranged to be spaced apart from each other on the front of the ultrasonic radiation frame, and emit ultrasonic waves when power is applied; It is arranged to be spaced apart from the transducer in the direction of travel of the ultrasonic waves and is detachably coupled to the ultrasonic radiation frame, and the surface opposing the transducer is formed in a flat plate shape to simultaneously receive the ultrasonic waves emitted from the transducer. , a plurality of slits through which the ultrasonic waves pass are formed, causing the ultrasonic waves to be diffracted as they pass through, converting at least one into waves with different phases, and preventing interference of the converted waves. an ultrasonic focusing module that guides and focuses the waves to a preset ultrasonic focusing point; It includes a coupling member that detachably couples the ultrasonic focusing module to the ultrasonic radiation frame.

According to another aspect of the present invention, a high-intensity focused ultrasonic wave generator that focuses ultrasonic waves using a slit includes: an ultrasonic radiation frame in which a plurality of coupling holes are formed; Transducer holders are respectively inserted into the coupling holes in front of the ultrasonic radiation frame and are detachably coupled to penetrate the ultrasonic radiation frame; A plurality of transducers are mounted on the transducer holders with their front surfaces exposed, arranged to be spaced apart from each other on the front of the ultrasonic radiation frame, and emit ultrasonic waves when power is applied; It is arranged to be spaced apart from the transducer in the direction of travel of the ultrasonic waves and is detachably coupled to the ultrasonic radiation frame, and at least a portion of the surface facing the transducer is three-dimensional so that the separation distance from the transducer varies depending on the position. It is formed in a shape, and a plurality of slits through which the ultrasonic waves pass are formed, causing the ultrasonic waves to be diffracted as they pass through, converting at least one of them into waves with different phases, and causing interference between the converted waves. an ultrasonic focusing module that induces interference and focuses the waves on a preset ultrasonic focusing point; It includes a coupling member that detachably couples the ultrasonic focusing module to the ultrasonic radiation frame.

The high-intensity focused ultrasound generator according to the present invention is capable of diffracting, converting, and interfering with the ultrasonic waves emitted from the transducer by placing an ultrasonic focusing module with a slit in front of the transducer and focusing it on a preset ultrasonic focusing point. By focusing ultrasound on the desired area non-invasively, localized areas can be treated more accurately and the treatment can be performed without wounds or scars.

Additionally, various ultrasonic focusing points can be implemented depending on the size or location of the slits.

In addition, since the ultrasonic focusing plate is detachably attached to the front of the transducer, the ultrasonic focusing plate can be replaced and applied depending on the desired ultrasonic focusing point.

In addition, the ultrasonic focusing plate has a simple structure and has the advantage of being easy to install.

Figure 1 is a diagram schematically showing the configuration of a high-intensity focused ultrasound generator that focuses ultrasound waves using diffraction and interference of waves according to a first embodiment of the present invention.

Figure 2 is an exploded perspective view of the ultrasonic focusing plate and transducer shown in Figure 1.

Figure 3 is a side view of the ultrasonic focusing plate shown in Figure 2.

Figure 4 is a diagram schematically showing the ultrasonic focusing principle of the ultrasonic focusing plate according to the first embodiment of the present invention.

Figure 5 is a diagram schematically showing the relationship between the distance between slits and the ultrasonic focusing point according to an embodiment of the present invention.

Figure 6 shows an example of the size and position of slits when the focal distance is 20 mm in the high-intensity focused ultrasound generator according to an embodiment of the present invention.

Figure 7 shows an example of simulating the focusing of ultrasound when the focal distance is 20 mm in the high-intensity focused ultrasound generator according to an embodiment of the present invention.

Figure 8 is a diagram schematically showing the ultrasonic focusing principle of the ultrasonic focusing plate according to the second embodiment of the present invention.

Figure 9 is a plan view of an ultrasonic focusing plate according to a third embodiment of the present invention.

Figure 10 is a plan view of an ultrasonic focusing plate according to a fourth embodiment of the present invention.

Figure 11 is a plan view of an ultrasonic focusing plate according to a fifth embodiment of the present invention.

Figure 12 is a plan view of an ultrasonic focusing plate according to a sixth embodiment of the present invention.

Figure 13 is a plan view of an ultrasonic focusing plate according to a seventh embodiment of the present invention.

Figure 14 is a plan view of an ultrasonic focusing plate according to an eighth embodiment of the present invention.

Figure 15 is a plan view of an ultrasonic focusing plate according to a ninth embodiment of the present invention.

Figure 16 is a plan view of the ultrasonic focusing plate according to the tenth embodiment of the present invention.

Figure 17 is a plan view of the ultrasonic focusing plate according to the 11th embodiment of the present invention.

Figure 18 is a plan view of an ultrasonic focusing plate according to the twelfth embodiment of the present invention.

Figure 19 is a plan view of the ultrasonic focusing plate according to the 13th embodiment of the present invention.

Figure 20 is a plan view of the ultrasonic focusing plate according to the fourteenth embodiment of the present invention.

Figure 21 is a plan view of an ultrasonic focusing plate according to the 15th embodiment of the present invention.

Figure 22 is a diagram schematically showing a high-intensity focused ultrasound generator according to the 16th embodiment of the present invention.

Figure 23 is a diagram schematically showing a high-intensity focused ultrasound generator according to the 17th embodiment of the present invention.

Figure 24 is a diagram schematically showing a high-intensity focused ultrasound generator according to an 18th embodiment of the present invention.

Figure 25 is a diagram schematically showing a high-intensity focused ultrasound generator according to the 19th embodiment of the present invention.

Figure 26 is a diagram schematically showing a high-intensity focused ultrasound generator according to the twentieth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

Figure 1 is a diagram schematically showing the configuration of a high-intensity focused ultrasound generator that focuses ultrasound waves using diffraction and interference of waves according to a first embodiment of the present invention. Figure 2 is an exploded perspective view of the ultrasonic focusing plate and transducer shown in Figure 1. Figure 3 is a side view of the ultrasonic focusing plate shown in Figure 2.

1 to 3, the high-intensity focused ultrasound generator according to the first embodiment of the present invention includes an ultrasonic radiation frame 10, a plurality of transducer holders 20, and a plurality of transducers 30. and an ultrasonic focusing module.

The ultrasonic radiation frame 10 is a frame in which a plurality of coupling holes are formed to allow the transducer holder 20 to be coupled thereto. For example, the front surface of the ultrasonic radiation frame 10 will be described as being formed in a flat plane. However, the present invention is not limited to this, and the front surface of the ultrasonic radiation frame 10 may be formed as a curved surface.

The transducer holders 20 are detachably coupled to each of the plurality of coupling holes. The transducer 30 is mounted on the front of the transducer holder 20.

The transducer holder 20 includes a head portion 20a formed with a seating groove into which the transducer 30 is inserted and seated, and a head portion 20a formed to extend to the rear of the head portion 20a and coupled to the coupling holes. It includes a body portion (20b).

The transducer 30, the transducer holder 20, and the ultrasonic focusing module form one module, and a plurality of modules are configured to form an array.

In this embodiment, the transducer 30 and the ultrasonic focusing module are matched one-to-one (1:1) to form one module, and a plurality of the modules are arranged in a planar manner. However, it is not limited to this, and it is possible for one ultrasonic focusing module to be matched to a plurality of transducers 30, and it is also possible for a plurality of ultrasonic focusing modules to be matched to one transducer 30. possible.

In this embodiment, the transducer 30 is coupled to the ultrasonic radiation frame 10 through the transducer holder 20 as an example, but this is not limited to this and the transducer 30 is connected to the ultrasonic radiation frame 10 through the transducer holder 20. It is also possible to be directly coupled to the radiation frame 10, in which case the transducer 30 and the ultrasonic focusing module can form one module.

The transducers 30 may include piezoelectric elements. In this embodiment, the transducers 30 are described as being formed in a disk shape. The number, size, and shape of the transducers can be varied depending on the ultrasonic energy to be radiated. Wires 31 may be connected to the upper and lower surfaces of the transducer 30.

The transducer 30 generates ultrasonic waves when power is applied, and the ultrasonic waves are explained by way of example as a single plane wave. However, it is not limited to this, and the ultrasonic waves may of course be waves of other shapes other than plane waves. In addition, of course, it is possible for at least one of the plurality of transducers 30 to emit ultrasonic waves having different phases.

The transducers 30 are arranged to be spaced apart from each other laterally on the plane of the ultrasonic radiation frame 10. The transducers 30 are explained as an example in which they are arranged to be spaced apart from each other at equal intervals. However, the present invention is not limited to this, and at least some of the transducers 30 may of course be arranged to be spaced apart from each other at different intervals. Additionally, the transducers 30 may be arranged regularly to form a matrix, or may be arranged in a radial or staggered form. Additionally, it is possible for the transducers 30 to form a plurality of groups, and for the plurality of groups to be arranged to be spaced apart from each other.

The ultrasonic focusing module is disposed in front of each of the transducers 30, so that the ultrasonic wave emitted from the transducer 30 passes through and diffracts, and at least one of the ultrasonic focusing modules has a different phase. It converts them into waves, induces interference of the converted waves, and focuses the waves on a preset ultrasonic focusing point.

In this embodiment, the ultrasonic focusing module is arranged to be spaced forward from the transducer 30, and at least a portion of the ultrasonic focusing module has a curved surface, an inclined surface, and a stepped surface so that the separation distance from the transducer 30 varies depending on the location. It will be explained as an example that it is an ultrasonic focusing plate 40 formed in a three-dimensional shape.

Here, the separation distance between the transducer 30 and the ultrasonic focusing plate 40 is set according to at least one of the wavelength (λ) of the ultrasonic wave and the diameter of the transducer 30. In this embodiment, the separation distance between the transducer 30 and the ultrasonic focusing plate 40 is set to a range of about 0.01 mm to 10 times the diameter of the transducer 30.

Referring to FIGS. 2 and 3 , the ultrasonic focusing plate 40 is described as an example in which the ultrasonic focusing plate 40 has a disk shape with a larger diameter than the transducer 30.

The ultrasonic focusing plate 40 includes a waveform converter 40a facing the transducer 30 and a radial extension from the waveform converter 40a to form the ultrasonic radiation frame 10 as described later. It includes a frame coupling portion (40b) coupled by coupling members (45) and (46).

The waveform conversion unit 40a is formed to protrude forward, which is the direction in which the ultrasonic waves travel.

In this embodiment, the waveform converter 40a is explained by way of example as having a convex shape. However, it is not limited to this, and the waveform converter 40a is formed in the shape of a square pyramid that protrudes in the direction of travel of the ultrasonic waves and has an open bottom, or is formed so that at least part of it is stepped, or at least part of it is formed so as to have an inclined surface. It is also possible to become In addition, the waveform converter 40a may of course have a shape that is a combination of at least some of a convex shape, a concave shape, a square pyramid shape, a flat shape, an inclined plane shape, and a stepped shape. That is, the waveform converter 40a can be changed into various shapes if the separation distance between the slits 42 and the transducer 30, which will be described later, is formed to be different.

In this embodiment, it is explained as an example that the waveform converter 40a has a protruding shape among the ultrasonic focusing plate 40, but this is not limited to this and the entire ultrasonic focusing plate 40 has a shape protruding forward. Of course, it is also possible for some or several areas of the waveform conversion unit 40a to protrude forward.

In the waveform converter 40a, a plurality of slits 42 are formed to convert the ultrasonic waves emitted from the transducer 30 into waves with at least one different phase. The waveform converter 40a converts the ultrasonic waves emitted from the transducer 30 into spherical waves, induces interference between the plurality of spherical waves, and focuses them on at least one ultrasonic focus point.

A plurality of fastening holes 41 are formed in the frame coupling portion 40b to fasten the

coupling members

45 and 46 to each other.

Referring to Figures 2 and 3, the

coupling members

45 and 46 include a plurality of connecting nuts 46 and a plurality of connecting bolts 45.

The connecting nuts 46 are provided on the ultrasonic radiation frame 10 and are formed to be long and protrude forward from the front of the transducer 30 to guide the mounting height of the ultrasonic focusing plate 40. It is a formed nut. The connecting nut 46 is explained as an example of being fastened to a module coupling hole formed in the ultrasonic radiation frame 10. However, it is not limited to this, and the connecting nut 46 may be placed on the front of the ultrasonic radiation frame 10 and then fixed through an adhesive or the like, and of course, it may also be formed integrally with the ultrasonic radiation frame. .

The plurality of connecting nuts 46 are arranged to be spaced apart from each other at a predetermined distance, and the ultrasonic focusing plate 40 is placed on the upper surface of the connecting nuts 36. The height at which the connecting nut 46 protrudes forward from the front of the ultrasonic radiation frame 10 is the mounting height of the ultrasonic focusing plate 40 or the separation distance between the ultrasonic focusing plate 40 and the transducer 30. It is set according to.

The connecting bolts 45 are fastened to the connecting nuts 46 on the upper side of the ultrasonic focusing plate 40 placed on the connecting nuts 36. The connecting bolts 45 pass through the fastening holes 41 of the ultrasonic focusing plate 40 and are fastened to the connecting nut 46.

Meanwhile, the plurality of slits 42 are formed on the ultrasonic focusing plate 40 and include all holes or gaps through which the ultrasonic waves pass.

In this embodiment, the plurality of slits 42 are arranged to form at least one row and at least one column. That is, the slits 42 are explained as an example in which the slits 42 are spaced apart from each other at equal intervals in the horizontal direction and are regularly arranged in a matrix form. However, the present invention is not limited to this, and the plurality of slits 42 may be arranged in various shapes.

The slits 42 are described as holes having a circular cross-section, but are not limited to this and the cross-sectional shape of the slits 42 can be changed in various ways.

In addition, the sizes of the slits 42 are described as being the same, but the slits 42 are not limited to this and may of course be formed in different sizes.

Diffraction of the ultrasonic waves is influenced by the size of the slits 42 and the wavelength (λ) of the ultrasonic waves.

Accordingly, the size of each of the slits 42 is set differently depending on the wavelength (λ) of the ultrasonic waves emitted from the transducer 30. Here, the size of the slit 42 includes the diameter of the cross section of the slit 42. In this embodiment, the diameter of the slit 42 is set in the range of 0.01 to 10 times the wavelength (λ) of the ultrasonic wave.

The separation distance between the slits 42 is set according to the wavelength (λ) of the ultrasonic waves. In this embodiment, the spacing between the slits 42 is set in the range of 0.01 to 10 times the wavelength λ of the ultrasonic waves.

Meanwhile, Figure 5 is a diagram schematically showing the relationship between the distance between slits and the ultrasonic focusing point when the ultrasonic focusing plate according to an embodiment of the present invention is a flat plate. Figure 6 shows an example of the size and position of slits when the focal distance is 20 mm in the high-intensity focused ultrasound generator according to an embodiment of the present invention.

Referring to FIG. 5 , a case in which two slits 42 are formed in the ultrasonic focusing plate 40 will be described as an example. In Figure 5, Δy represents the path difference of the wave.

The separation distance (d) between the slits 42 is the wavelength (λ) of the ultrasonic wave, the arrangement order of the slit (s _n ) from the center slit (s0) among the plurality of slits 42, and the center slit. It is set according to the distance (y0) from (s0) to the ultrasonic focusing point (Focal point).

When there are a plurality of slits 42, the equation for calculating the separation distance d _n between the nth slit from the center slit s0 is as shown in Equation 1.

Equation 1

Here, n is the arrangement order of the corresponding slits from the central slit, λ is the wavelength of ultrasonic waves, and y0 is the distance from the central slit to the screen. The screen is a location where a focus point can be created.

When the separation distance (d _n ) between the slits 42 is calculated from Equation 1, the positions of the slits 42 can be set according to the separation distance (d _n ).

Referring to FIG. 6, when the focal length is 20 mm, an example of slits being arranged according to the separation distance (d _n ) calculated through Equation 1 is shown.

In Figure 6, d1 is the separation distance between the center slit (s0) and the first slit (s1), d2 is the separation distance between the center slit (s0) and the second slit (s2), and d3 is the center slit (s0). ) is the separation distance between the third slit (s3), d4 is the separation distance between the center slit (s0) and the fourth slit (s4), and d5 is the separation distance between the center slit (s0) and the fifth slit (s5). Indicates the separation distance.

Referring to FIG. 6, it can be seen that the distance between the slits 42 decreases as the distance from the central slit s0 increases.

Referring to FIG. 7, when the focal length is 20 mm, the positions of the slits 42 are set and arranged according to the separation distance calculated according to Equation 1 above, and the ultrasonic focusing point is confirmed through simulation.

In addition, at least a portion of the surface of the transducer 30 may be coated with a sound-absorbing material (not shown) and provided with a sound-absorbing layer (not shown) that absorbs ultrasonic waves reflected from the ultrasonic focusing plate 40.

The operation of the high-intensity focused ultrasound generator that focuses ultrasonic waves using wave diffraction and interference according to the first embodiment of the present invention configured as described above will be described as follows.

When power is applied to the plurality of transducers 30, each transducer 30 generates and emits ultrasonic waves.

Here, it is explained as an example that each ultrasonic wave generated by the transducer 30 is one plane wave.

The ultrasonic waves emitted from the transducer 30 pass through the ultrasonic focusing plate 40 disposed in front of the transducer 30.

While passing through the ultrasonic focusing plate 40, the ultrasonic waves are diffracted and converted into a plurality of spherical waves, at least one of which has a different phase. The waves of the converted spherical waves cause interference and are focused on a preset ultrasonic focusing point.

That is, referring to FIG. 4A, the ultrasonic waves emitted from the transducer 30 are converted into a plurality of spherical waves while passing through the plurality of slits 42.

Referring to Figure 4b, the plurality of spherical waves are focused on a preset ultrasonic focusing point.

Therefore, by placing the ultrasonic focusing plate 40 in front of the transducer 30, it focuses the ultrasonic waves on the desired area non-invasively, allowing more accurate treatment of the local area, and has the advantage of being able to perform the procedure without wounds or scars. .

In addition, the ultrasonic focusing point can be changed depending on the size or location of the slits 42 formed in the ultrasonic focusing plate 40 and the separation distance between the ultrasonic focused wave 40 and the transducer 30.

In addition, since the ultrasonic focusing plate 40 is detachably coupled to the front of the transducer 30, the ultrasonic focusing plate 40 can be replaced depending on the desired ultrasonic focusing point and applied to various ultrasonic focusing areas. .

In addition, compared to the case of focusing using the shape of the ultrasonic radiation frame 10, the structure is simple and has the advantage of being partially replaceable.

Meanwhile, Figure 8 is a diagram schematically showing the ultrasonic focusing principle of the ultrasonic focusing plate according to the second embodiment of the present invention.

Referring to FIG. 8, the ultrasonic focusing plate 240 according to the second embodiment of the present invention is formed in a three-dimensional shape, but differs from the first embodiment in that it has a convex curved shape backward toward the transducer 30. Since the remaining configuration and operation are similar to the first embodiment, the description will focus on the differences and a detailed description of similar content will be omitted.

The ultrasonic focusing plate 240 is formed to extend radially from the waveform converter 240a and the waveform converter 240a facing the transducer 30, and is coupled to the ultrasonic radiation frame 10. Includes a frame coupling portion 240b.

The waveform conversion unit 240a will be described as an example in which it is formed in a concave shape to protrude toward the transducer 30.

In this embodiment, the waveform converter 240a is described as having a curved shape, but is not limited to this, and protrudes in the direction toward the transducer 30 in the shape of a square pyramid with an open bottom, or at least It is also possible that a portion is formed to be stepped, or at least a portion is formed to have an inclined surface. That is, the waveform converter 240a can be changed into various shapes if the separation distance between the slits 242 and the transducer 30, which will be described later, is formed to be different.

In this embodiment, the waveform converter 240a of the ultrasonic focusing plate 240 is described as having a shape that protrudes rearward. However, this is not limited to this, and the entire ultrasonic focusing plate 240 protrudes rearward. Of course, it is also possible to have a similar shape or to have only an area smaller than the waveform conversion unit 240a protrude backward.

A plurality of slits 242 are formed in the waveform conversion unit 240a of the ultrasonic focusing plate 240.

For example, the slits 242 are described as holes with circular cross-sections, but they are not limited to this and the cross-sectional shapes of the slits 242 can be changed in various ways.

Additionally, the number of slits 242 can be changed and applied in various ways.

In addition, the sizes of the slits 242 are described as being the same, but the slits 242 are not limited to this and may of course be formed in different sizes.

In addition, the distance between the slits 242 may all be set to be the same, and it is also possible, of course, that the distance between at least some of the slits 242 may be set differently.

The size or location of the slits 242 may be set differently depending on the desired ultrasound focal point. That is, the size of the slits 242 is set differently depending on the wavelength (λ) of the ultrasonic waves emitted from the transducer 30. Each position of the slits 242 includes the wavelength λ of the ultrasonic wave, the arrangement order of the slits s _n from the central slit s1 among the plurality of slits 242, and the central slit s1. It can be calculated and set according to the distance from the ultrasonic focusing point (Focal point).

Referring to FIG. 8A, the ultrasonic waves emitted from the transducer 30 are converted into a plurality of spherical waves while passing through the plurality of slits 242.

Referring to FIG. 8B, the plurality of spherical waves are focused at a preset ultrasonic focusing point.

In this embodiment, the ultrasonic wave emitted from the transducer 30 is described as a single plane wave, but it is not limited to this and may have other shapes.

Meanwhile, Figure 9 is a plan view of an ultrasonic focusing plate according to a third embodiment of the present invention.

Referring to FIG. 9, a plurality of slits 342 are formed in the ultrasonic focusing plate 340 according to the third embodiment of the present invention, and the plurality of slits 342 are arranged to form a plurality of rows and columns. However, the slits arranged in adjacent rows or adjacent columns are different from the first embodiment in that they are arranged in a staggered manner, and the remaining configuration and operation are similar to the first embodiment, so detailed description of similar content is omitted. do.

For example, the slits 342 are described as holes with a circular cross-section, but they are not limited to this and the cross-sectional shape of the slits 342 can be changed in various ways.

Additionally, the number of slits 342 can be changed and applied in various ways.

In addition, the sizes of the slits 342 are described as being the same, but the slits 342 are not limited to this and may of course be formed in different sizes.

In addition, the distance between the slits 342 may all be set to be the same, and it is also possible, of course, that the distance between at least some of the slits 342 may be set differently.

The size or location of the slits 342 may be set differently depending on the desired ultrasound focal point. That is, the size of the slits 342 is set differently depending on the wavelength (λ) of the ultrasonic waves emitted from the transducer 30. Each position of the slits 342 includes the wavelength λ of the ultrasonic wave, the arrangement order of the slit s _n from the central slit s1 among the plurality of slits 342, and the central slit s1. It can be calculated and set according to the distance from the ultrasonic focusing point (Focal point).

In addition, the ultrasonic focusing plate 340 may have a flat plate shape on at least a portion of the surface facing the transducer 30, and may have a three-dimensional shape so that the separation distance from the transducer 30 varies depending on the location. It is also possible to form .

When the ultrasonic focusing plate 340 is formed in a three-dimensional shape, at least a portion may be formed as a curved or inclined surface, or at least a portion may be formed as a stepped surface. Additionally, the ultrasonic focusing plate 340 may have a shape that protrudes convexly in the direction in which the ultrasonic waves travel, and may also have a shape that protrudes convexly in the direction toward the transducer 30. However, it is not limited to this, and can be changed into various shapes if the separation distance between the slits 342 of the ultrasonic focusing plate 340 and the transducer 30 is formed to vary depending on the position.

In addition, in this embodiment, the ultrasonic wave emitted from the transducer 30 is described as a single plane wave, but it is not limited to this and may have other shapes.

Meanwhile, Figure 10 is a plan view of an ultrasonic focusing plate according to a fourth embodiment of the present invention.

Referring to FIG. 10, a plurality of slits 442 are formed in the ultrasonic focusing plate 440 according to the fourth embodiment of the present invention, and the plurality of slits 442 are of the ultrasonic focusing plate 440. It is different from the first embodiment in that it is arranged radially from the center, and the remaining configuration and operation are similar to the first embodiment, so detailed description of similar content will be omitted.

The slits 442 will be described as an example in which the slits arranged within the same radius from the center of the ultrasonic focusing plate 440 form a virtual circle.

For example, the slits 442 are described as holes with a circular cross-section, but they are not limited to this and the cross-sectional shape of the slits 442 can be changed in various ways.

Additionally, the number of slits 442 can be changed and applied in various ways.

In addition, the sizes of the slits 442 are described as being the same, but the slits 442 are not limited to this and may of course be formed in different sizes.

In addition, the distance between the slits 442 may all be set to be the same, and it is also possible, of course, that the distance between at least some of the slits 442 may be set differently.

The size or location of the slits 442 may be set differently depending on the desired ultrasound focal point. That is, the size of the slits 442 is set differently depending on the wavelength (λ) of the ultrasonic waves emitted from the transducer 30. Each position of the slits 442 includes the wavelength λ of the ultrasonic wave, the arrangement order of the corresponding slit s _n from the center slit s1 among the plurality of slits 442, and the center slit s1. It can be calculated and set according to the distance from the ultrasonic focusing point (Focal point).

In addition, the ultrasonic focusing plate 440 may have a flat plate shape on at least a portion of the surface facing the transducer 30, and may have a three-dimensional shape so that the separation distance from the transducer 30 varies depending on the location. It is also possible to form .

When the ultrasonic focusing plate 440 is formed in a three-dimensional shape, at least a portion may be formed as a curved or inclined surface, or at least a portion may be formed as a stepped surface. Additionally, the ultrasonic focusing plate 440 may have a shape that protrudes convexly in the direction in which the ultrasonic waves travel, and may also have a shape that protrudes convexly in the direction toward the transducer 30. However, it is not limited to this, and can be changed into various shapes if the separation distance between the slits 442 of the ultrasonic focusing plate 440 and the transducer 30 is formed to vary depending on the position.

Meanwhile, Figure 11 is a plan view of an ultrasonic focusing plate according to a fifth embodiment of the present invention.

Referring to FIG. 11, the slits 542 of the ultrasonic focusing plate 540 according to the fifth embodiment of the present invention include a central hole 542a and a plurality of surrounding holes arranged to be spaced apart from each other in the circumferential and radial directions. The inclusion of the elements 542b is different from the first embodiment, and the remaining configuration and operation are similar to the first embodiment, so the description will focus on the differences and a detailed description of similar content will be omitted.

The central hole 542a is described as an example of a hole with a circular cross-section, but it is not limited to this and the cross-sectional shape can be changed in various ways.

The surrounding holes 542b will be described as an example in which a plurality of the surrounding holes 542b are arranged to be spaced apart from each other in the circumferential and radial directions and have a circular cross section. However, it is not limited to this, and the cross-sectional shape of the around holes 542b can be changed and applied in various ways.

Among the surrounding holes 542, holes located within the same radius from the center hole 542a are arranged to form a virtual circle. In addition, the surrounding holes 542 have an arc length (l _n ) that becomes longer as it goes in the radial direction. Additionally, the around holes 542 are arranged to form spherical symmetry around the central hole 542a.

Additionally, the number of surrounding holes 542b can be changed and applied in various ways.

In addition, the radial widths (w) of the surrounding holes 542b are described as being the same, but are not limited to this and may of course be formed differently.

The size and position of the center hole 542a and the surrounding holes 542b are set differently depending on the desired ultrasonic focal point.

In addition, the ultrasonic focusing plate 540 may have a flat plate shape on at least a portion of the surface facing the transducer 30, and may have a three-dimensional shape so that the separation distance from the transducer 30 varies depending on the location. It is also possible to form .

When the ultrasonic focusing plate 540 is formed in a three-dimensional shape, at least a portion may be formed as a curved or inclined surface, or at least a portion may be formed as a stepped surface. Additionally, the ultrasonic focusing plate 540 may have a shape that protrudes convexly in the direction in which the ultrasonic waves travel, and may also have a shape that protrudes convexly in the direction toward the transducer 30. However, it is not limited to this, and can be changed into various shapes if the separation distance between the slits 542 of the ultrasonic focusing plate 540 and the transducer 30 is formed to vary depending on the position.

Meanwhile, Figure 12 is a plan view of an ultrasonic focusing plate according to a sixth embodiment of the present invention.

Referring to FIG. 12, the slits 642 of the ultrasonic focusing plate 640 according to the sixth embodiment of the present invention include a central hole 642a and a plurality of surrounding holes arranged to be spaced apart in the circumferential and radial directions. It includes (642b), but the surrounding holes 642 are arranged in a staggered manner, which is different from the fifth embodiment, and the remaining configuration and operation are similar to the fifth embodiment, so focusing on the differences explanation, and detailed explanations of similar content are omitted.

The central hole 642a is described as a hole with a circular cross-section as an example, but it is not limited to this and the cross-sectional shape can be changed in various ways.

For example, the surrounding holes 642b are arranged to be spaced apart from each other in the circumferential and radial directions and have a circular cross-section. However, it is not limited to this, and the cross-sectional shape of the around holes 642b can be changed and applied in various ways.

Among the surrounding holes 642, holes located within the same radius from the center hole 642a are arranged to form a virtual circle. In addition, the surrounding holes 642 have arc lengths (l _n ) that become longer as they go in the radial direction.

Additionally, the around holes 642 are arranged to be staggered so as not to achieve spherical symmetry around the central hole 542a.

Additionally, the number of around holes 642b can be changed and applied in various ways.

In addition, the radial widths (w) of the around holes 642b are described as being the same, but are not limited to this and may of course be formed differently.

The size and location of the center hole 642a and the surrounding holes 642b are set differently depending on the desired ultrasonic focal point.

In addition, the ultrasonic focusing plate 640 may have a flat plate shape on at least a portion of the surface facing the transducer 30, and may have a three-dimensional shape so that the separation distance from the transducer 30 varies depending on the location. It is also possible to form .

When the ultrasonic focusing plate 640 is formed in a three-dimensional shape, at least a portion may be formed as a curved or inclined surface, or at least a portion may be formed as a stepped surface. Additionally, the ultrasonic focusing plate 640 may have a shape that protrudes convexly in the direction in which the ultrasonic waves travel, and may also have a shape that protrudes convexly in the direction toward the transducer 30. However, it is not limited to this, and can be changed into various shapes if the separation distance between the slits 3642 of the ultrasonic focusing plate 640 and the transducer 30 is formed to vary depending on the location.

Meanwhile, Figure 13 is a plan view of an ultrasonic focusing plate according to a seventh embodiment of the present invention.

Referring to FIG. 13, the slits 742 of the ultrasonic focusing plate 740 according to the seventh embodiment of the present invention are radially spaced apart from a central hole 742a with the central hole 742a as the center. It includes a plurality of arranged around holes 742b, but the around holes 742 are different from the fifth embodiment in that the cross-section is formed in a ring shape, and the remaining configuration and operation are those of the fifth embodiment. Since it is similar to , the description will focus on the differences and a detailed description of similar content will be omitted.

The central hole 742a is described as an example of a hole with a circular cross-section, but it is not limited to this and the cross-sectional shape can be changed in various ways.

For example, the surrounding holes 742b are arranged to be spaced apart in the radial direction around the central hole 742a and have a ring-shaped cross section. However, it is not limited to this, and the cross-sectional shape of the around holes 742b can be changed and applied in various ways.

Additionally, the number of around holes 742b can be changed and applied in various ways.

In addition, the radial widths w of the surrounding holes 742b are described as being the same, but are not limited thereto and may of course be formed differently.

The size and location of the center hole 742a and the surrounding holes 742b are set differently depending on the desired ultrasonic focal point.

In addition, the remaining parts of the ultrasonic focusing plate 740, excluding the center hole 742a and the surrounding holes 742, are connected to each other by a connection portion 742c.

In addition, the ultrasonic focusing plate 740 may have a flat plate shape on at least a portion of the surface facing the transducer 30, and may have a three-dimensional shape so that the separation distance from the transducer 30 varies depending on the location. It is also possible to form .

When the ultrasonic focusing plate 740 is formed in a three-dimensional shape, at least a portion may be formed as a curved or inclined surface, or at least a portion may be formed as a stepped surface. Additionally, the ultrasonic focusing plate 740 may have a shape that protrudes convexly in the direction in which the ultrasonic waves travel, and may also have a shape that protrudes convexly in the direction toward the transducer 30. However, it is not limited to this, and can be changed into various shapes if the separation distance between the slits 742 of the ultrasonic focusing plate 740 and the transducer 30 is formed to vary depending on the position.

Meanwhile, Figure 14 is a plan view of the ultrasonic focusing plate according to the eighth embodiment of the present invention.

Referring to FIG. 14, a plurality of slits 842 formed in the ultrasonic focusing plate 840 according to the eighth embodiment of the present invention are arranged radially from the center of the ultrasonic focusing plate 840, and the slits ( 842), the size of at least part of the ultrasonic focusing plate 840 is different from the fourth embodiment in that it is formed to decrease in the radial direction from the center of the ultrasonic focusing plate 840, and the remaining configuration and operation are similar to the fourth embodiment. , detailed description of similar content is omitted.

The slits 842 will be described as an example in which the slits arranged within the same radius from the center of the ultrasonic focusing plate 840 form a virtual circle.

The slits 842 are described as holes with circular cross-sections as an example, but are not limited to this and the cross-sectional shapes of the slits 842 can be changed in various ways.

Additionally, the number of slits 842 can be changed and applied in various ways.

In addition, among the slits 842, at least some of the central slits 842a disposed at the center have the same size, and the remaining peripheral slits 842b extend from the center of the ultrasonic focusing plate 840. It is formed to become smaller as it goes in the radial direction. In addition, the separation distance between the center slits 842a and the separation distance between the peripheral slits 842b are set differently, and will be described as an example. However, it is not limited to this, and of course, the separation distance between the slits 842 can all be set to be the same.

Meanwhile, Figure 15 is a plan view of the ultrasonic focusing plate according to the ninth embodiment of the present invention.

Referring to FIG. 15, a plurality of slits 942 formed in the ultrasonic focusing plate 940 according to the ninth embodiment of the present invention are arranged radially from the center of the ultrasonic focusing plate 940, and the slits ( 942), the size of at least part of the ultrasonic focusing plate 940 is different from the eighth embodiment in that it is formed to expand in the radial direction from the center of the ultrasonic focusing plate 940, and the remaining configuration and operation are similar to the eighth embodiment. , detailed description of similar content is omitted.

The slits 942 are explained as an example in which the slits arranged within the same radius from the center of the ultrasonic focusing plate 940 form a virtual circle.

The slits 942 are described as holes with circular cross-sections as an example, but are not limited to this and the cross-sectional shapes of the slits 942 can be changed in various ways.

Additionally, the number of slits 942 can be changed and applied in various ways.

In addition, among the slits 942, at least some of the central slits 942a disposed on the center side are formed to have the same size, and the remaining peripheral slits 942b are located from the center of the ultrasonic focusing plate 940. It is formed to shrink as it goes in the radial direction. In addition, the separation distance between the central slits 942a and the separation distance between the peripheral slits 942b are set differently, and will be described as an example. However, it is not limited to this, and the separation distance between the slits 942 may of course be set to be the same.

Meanwhile, Figure 16 is a plan view of the ultrasonic focusing plate according to the tenth embodiment of the present invention.

Referring to FIG. 16, a plurality of slits 1042 formed in the ultrasonic focusing plate 1040 according to the tenth embodiment of the present invention are arranged in a matrix form to form a plurality of rows and columns, and the slits 1042 At least some of them are different from the first embodiment in that their size increases from the center of the ultrasonic focusing plate 1040 to the outside, and the remaining configuration and operation are similar to the first embodiment, so similar contents Detailed description is omitted.

For example, the slits 1042 are described as holes with a circular cross-section, but they are not limited to this and the cross-sectional shape of the slits 1042 can be changed in various ways.

Additionally, the number of slits 1042 can be changed and applied in various ways.

In addition, the size of the slits 1042 is gradually increased from the center of the ultrasonic focusing plate 1040 toward the outside.

In addition, the distance between the slits 1042 may all be set to be the same, and it is also possible, of course, that the distance between at least some of the slits 1042 may be set differently.

In addition, the slits 1042 are described as being arranged in a line with adjacent slits, but the present invention is not limited to this, and it is also possible, of course, for the slits arranged in adjacent rows or adjacent columns to be arranged in a staggered manner.

Meanwhile, Figure 17 is a plan view of the ultrasonic focusing plate according to the 11th embodiment of the present invention.

Referring to FIG. 17, a plurality of slits 1142 formed in the ultrasonic focusing plate 1140 according to the 11th embodiment of the present invention are arranged in a matrix form to form a plurality of rows and columns, and the slits 1142 At least some of them are different from the tenth embodiment in that they are formed to be smaller in size as they move from the center of the ultrasonic focusing plate 1140 outward, and the remaining configuration and operation are similar to the tenth embodiment, so similar contents Detailed description is omitted.

The slits 1142 are described as holes with circular cross-sections as an example, but are not limited to this and the cross-sectional shapes of the slits 1142 can be changed in various ways.

Additionally, the number of slits 1142 can be changed and applied in various ways.

In addition, the size of the slits 1142 is gradually increased from the center of the ultrasonic focusing plate 1140 toward the outside.

In addition, the distance between the slits 1142 may all be set to be the same, and it is also possible, of course, that the distance between at least some of the slits 1142 may be set differently.

In addition, the slits 1142 are described as being arranged in a line with adjacent slits, but the present invention is not limited to this, and it is also possible, of course, for the slits arranged in adjacent rows or adjacent columns to be arranged in a staggered manner.

Meanwhile, Figure 18 is a plan view of an ultrasonic focusing plate according to the twelfth embodiment of the present invention.

Referring to FIG. 18, the plurality of slits 1242 formed in the ultrasonic focusing plate 1240 according to the twelfth embodiment of the present invention are different from the first embodiment in that they are formed in a rectangular shape elongated in the horizontal direction, Since the remaining configuration and operation are similar to the first embodiment, detailed description of similar content will be omitted.

The slits 1242 are formed long in a horizontal first direction (x) on the surface of the ultrasonic focusing plate 1240, and extend in the first direction (x) on the surface of the ultrasonic focusing plate 1240. In the second vertical direction (y), a plurality of pieces are formed to be spaced apart from each other.

The shape of the slits 1242 is described as having a rectangular shape as an example, but it is not limited to this and can be changed to various shapes such as a square or an oval.

Additionally, the number of slits 1242 can be changed and applied in various ways.

In addition, the sizes of the slits 1242 are all set to be the same, but the present invention is not limited to this, and at least some of the slits 1242 may have different sizes.

In addition, the distance between the slits 1242 may all be set to be the same, and it is also possible, of course, that the distance between at least some of the slits 1242 may be set differently.

Meanwhile, Figure 19 is a plan view of the ultrasonic focusing plate according to the 13th embodiment of the present invention.

Referring to FIG. 19, a plurality of slits 1342 formed in the ultrasonic focusing plate 1340 according to the 13th embodiment of the present invention are arranged in a matrix form to form a plurality of rows and columns, and are formed in a rectangular shape. Since it is different from the first embodiment and the remaining configuration and operation are similar to the first embodiment, detailed description of similar content will be omitted.

The slits 1342 are formed to be spaced apart from each other in a first horizontal direction (x) on the surface of the ultrasonic focusing plate 1340, and are spaced apart from each other in the first direction (x) on the surface of the ultrasonic focusing plate 1340. A plurality of pieces are formed to be spaced apart from each other in the second direction (y) perpendicular to (x).

The shape of the slits 1342 is described as being rectangular, but it is not limited to this and can be changed to various shapes such as square or oval.

Additionally, the number of slits 1342 can be changed and applied in various ways.

In addition, the sizes of the slits 1342 are all set to be the same, but the present invention is not limited to this, and at least some of the slits 1342 may have different sizes.

In addition, the distance between the slits 1342 may all be set to be the same, and it is also possible, of course, that the distance between at least some of the slits 1342 may be set differently.

Meanwhile, Figure 20 is a plan view of the ultrasonic focusing plate according to the 14th embodiment of the present invention.

Referring to FIG. 20, a plurality of slits 1442 formed in the ultrasonic focusing plate 1440 according to the fourteenth embodiment of the present invention are formed long in the horizontal direction, and each slit 1442 is formed in the ultrasonic focusing plate 1440. ) is different from the twelfth embodiment in that it is formed in a shape that gradually expands from the center outward, and the remaining configuration and operation are similar to the twelfth embodiment, so detailed description of similar content will be omitted.

The slits 1442 are formed long in the first horizontal direction (x) on the surface of the ultrasonic focusing plate 1440, and extend in the first direction (x) on the surface of the ultrasonic focusing plate 1440. In the second vertical direction (y), a plurality of pieces are formed to be spaced apart from each other. However, it is not limited to this, and it is of course possible for a plurality of pieces to be formed to be spaced apart from each other in the first direction (x).

The shape of the slits 1442 will be described as an example of a ribbon shape that gradually expands in both directions from the center of the ultrasonic focusing plate 1440 toward the outside.

Additionally, the number of slits 1442 can be changed and applied in various ways.

In addition, the sizes of the slits 1442 are all set to be the same, but the present invention is not limited to this, and at least some of the slits 1442 may have different sizes.

In addition, the distance between the slits 1442 may all be set to be the same, and it is also possible, of course, that the distance between at least some of the slits 1442 may be set differently.

Meanwhile, Figure 21 is a plan view of an ultrasonic focusing plate according to the 15th embodiment of the present invention.

Referring to FIG. 21, a plurality of slits 1542 formed in the ultrasonic focusing plate 1540 according to the fifteenth embodiment of the present invention are formed long in the horizontal direction, and each slit 1542 is formed in the ultrasonic focusing plate 1540. ) is different from the 14th embodiment in that it is formed in a shape that gradually decreases from the center to the outside, and the remaining configuration and operation are similar to the 14th embodiment, so detailed description of similar content will be omitted.

The slits 1542 are formed long in a horizontal first direction (x) on the surface of the ultrasonic focusing plate 1540, and extend in the first direction (x) on the surface of the ultrasonic focusing plate 1540. In the second vertical direction (y), a plurality of pieces are formed to be spaced apart from each other. However, it is not limited to this, and it is of course possible for a plurality of pieces to be formed to be spaced apart from each other in the first direction (x).

The shape of the slits 1542 will be described as an example in which the shape gradually decreases in both directions from the center of the ultrasonic focusing plate 1540 toward the outside.

Additionally, the number of slits 1542 can be changed and applied in various ways.

In addition, the sizes of the slits 1542 are all set to be the same, but the present invention is not limited to this, and at least some of the slits 1542 may have different sizes.

In addition, the distance between the slits 1542 may all be set to be the same, and it is also possible, of course, that the distance between at least some of the slits 1542 may be set differently.

Meanwhile, Figure 22 is a diagram schematically showing a high-intensity focused ultrasound generator according to the 16th embodiment of the present invention.

Referring to FIG. 22, the high-intensity focused ultrasound generator according to the 16th embodiment of the present invention has one ultrasound focusing plate 1640 installed in front of a plurality of transducers 1630 to produce many-to-one (N:1) ) is different from the first embodiment, and the remaining configuration and operation are similar to the first embodiment, so the description will focus on the differences and a detailed description of similar content will be omitted.

The ultrasonic focusing plate 1640 is formed to be larger than the transducer 1630 so that it can simultaneously cover the front of the plurality of transducers 1630. For example, the ultrasonic focusing plate 1640 is described as a disk, but it is not limited to this and can be changed into various shapes.

The ultrasonic focusing plate 1640 diffracts, converts, and interferes with the waves of a plurality of ultrasonic waves emitted from each of the plurality of transducers 1630 and focuses them on a preset ultrasonic focusing point for each transducer 1630.

A plurality of slits 1642 are formed in the ultrasonic focusing plate 1640 at positions opposite to the plurality of transducers 1630, respectively.

The slits 1642 may be any one of the first to fifteenth embodiments.

In this embodiment, one ultrasonic focusing plate 1640 is matched to a plurality of transducers 1630 in a many-to-one (N:1) manner to form one module, and it is also possible for a plurality of the modules to form an array. .

In this embodiment, the ultrasonic waves emitted from the transducer 1630 are described as plane waves, but they are not limited to this and may have other shapes.

In addition, the ultrasonic focusing plate 1640 may have a flat plate shape at a portion opposite to the transducer 1630, or may be formed in a three-dimensional shape.

Meanwhile, Figure 23 is a diagram schematically showing a high-intensity focused ultrasound generator according to the 17th embodiment of the present invention.

Referring to FIG. 23, in the high-intensity focused ultrasound generator according to the 17th embodiment of the present invention, a plurality of ultrasound focusing plates 1740 are arranged in multiple stages in the direction of ultrasonic waves in front of the transducer 1730. The corresponding arrangement of (1:N) is different from the first embodiment, and the remaining configuration and operation are similar to the first embodiment, so the description will focus on the differences and a detailed description of similar contents will be provided. Omit it.

In this embodiment, two first and second

ultrasound focusing plates

1741 and 1742 are matched to one transducer 1730 to form one module, and a plurality of the modules are configured to form an array. Explain with examples. However, it is not limited to this, and the number of stacks of the ultrasonic focusing plates 1740 can be changed and applied in various ways depending on ultrasonic energy or ultrasonic focusing point.

The first ultrasound focusing plate 1741 is disposed in front of the transducer 1730, and a plurality of first slits 1741a are formed. The shape or arrangement of the first slits 1741a may be any one of the first to fifteenth embodiments.

The second ultrasonic focusing plate 1742 is arranged to be spaced a predetermined distance from the front of the first ultrasonic focusing plate 1741 in the direction in which the ultrasonic waves travel, and a plurality of second slits 1742a are formed. The shape or arrangement of the second slits 1742a may be any one of the first to fifteenth embodiments.

The first slits 1741a and the second slits 1742a may be formed to have the same size, shape, position, and arrangement, and at least some of them may be formed differently depending on ultrasonic energy or ultrasonic focusing point. It is also possible.

In this embodiment, the ultrasonic waves emitted from the transducer 1730 are described as plane waves, but they are not limited to this and may have other shapes.

In addition, the first ultrasound focusing plate 1741 is described as an example in which the part opposite to the transducer 1730 is three-dimensional and is formed in a convex shape that protrudes convexly in the direction of travel of the ultrasonic waves. It is not limited, and it is possible for at least a portion to be formed as a curved or inclined surface, or for at least a portion to be formed to be stepped. Additionally, the first ultrasound focusing plate 1741 may have a shape that protrudes convexly in the direction toward the transducer 1730. However, it is not limited to this, and if the separation distance between the slits 1741a of the first ultrasound focusing plate 1741 and the transducer 1730 is formed to vary depending on the location, it can be changed into various shapes and applied.

In addition, the second ultrasound focusing plate 1742 is described as an example of a three-dimensional shape formed in a convex shape that protrudes convexly in the direction of travel of the ultrasonic waves, but is not limited to this and at least a portion of the second ultrasound focusing plate 1742 is formed as a curved or inclined surface. Or, it is possible that at least a portion of it is formed to be stepped. Additionally, the second ultrasonic focusing plate 1742 may have a shape that protrudes convexly in the direction toward the first ultrasonic focusing plate 1741. However, it is not limited to this, and if the separation distance between the slits 1742a of the second ultrasonic focusing plate 1742 and the first ultrasonic focusing plate 1741 is formed to vary depending on the location, it can be changed into various shapes and applied. possible.

In addition, the first ultrasonic focusing plate 1741 and the second ultrasonic focusing plate 1742 may be formed to have the same size or shape, and at least some of them may be formed differently depending on the ultrasonic energy or the ultrasonic focusing point. It is also possible to become

Meanwhile, Figure 24 is a diagram schematically showing a high-intensity focused ultrasound generator according to an 18th embodiment of the present invention.

Referring to FIG. 24, in the high-intensity focused ultrasound generator according to the 18th embodiment of the present invention, a plurality of ultrasound focusing plates 1840 are arranged in multiple stages in the direction of ultrasonic waves in front of the transducer 1830. They are arranged correspondingly (1:N), but the plurality of ultrasonic focusing plates 1840 are different from the seventeenth embodiment in that each has a flat plate shape, and the remaining configuration and operation are similar to the seventeenth embodiment. , the description will focus on the differences and omit detailed descriptions of similar content.

In this embodiment, one transducer 1830 is provided with two first and second

ultrasound focusing plates

1841 and 1842 in matching order to form one module, and a plurality of the modules are configured to form an array. Explain with examples. However, it is not limited to this, and the number of stacks of the ultrasonic focusing plates 1840 can be varied depending on ultrasonic energy or ultrasonic focusing point.

The first ultrasound focusing plate 1841 is disposed in front of the transducer 1830, and a plurality of first slits 1841a are formed. The shape or arrangement of the first slits 1841a may be any one of the first to fifteenth embodiments.

The second ultrasonic focusing plate 1842 is arranged to be spaced a predetermined distance from the front of the first ultrasonic focusing plate 1841 in the direction in which the ultrasonic waves travel, and a plurality of second slits 1842a are formed. The shape or arrangement of the second slits 1842a may be any one of the first to fifteenth embodiments.

The first slits 1841a and the second slits 1842a may be formed to be the same in size, shape, location, and arrangement, or may be formed differently from each other. In this embodiment, the first slits 1841a and the second slits 1842a have the same size and shape, but are arranged in staggered positions. Each position of the first slits 1841a and the second slits 1842a may be set according to ultrasonic energy or ultrasonic focusing point.

In this embodiment, the ultrasonic waves emitted from the transducer 1830 are described as plane waves, but they are not limited to this and may have other shapes.

Meanwhile, Figure 25 is a diagram schematically showing a high-intensity focused ultrasound generator according to the 19th embodiment of the present invention.

Referring to FIG. 25, in the high-intensity focused ultrasound generator according to the 19th embodiment of the present invention, the ultrasonic focusing module is coated with a preset pattern using a sound absorbing material on the surface of the transducer 1930. It includes a coating layer 1940 for diffracting ultrasonic waves emitted from the beam, converting at least one wave into waves having different phases, inducing interference between the converted waves, and focusing the waves on a preset ultrasonic focusing point. Since it is different from the above embodiments and the remaining configurations and operations are similar, detailed descriptions of similar configurations are omitted.

The coating layer 1940 can be applied as long as it is coated on the surface of the transducer 1930 and is made of a sound-absorbing material that can absorb ultrasonic waves.

The thickness of the coating layer 1940 can be changed in various ways, and may have a shape that protrudes convexly in the direction in which the ultrasonic waves travel, or may have a shape that protrudes convexly in the direction toward the transducer 1930, It is possible to have a flat shape, and of course it is also possible to have a stepped or inclined shape.

The pattern may have a plurality of holes 1940a arranged in various ways. The shape or arrangement of the holes 940a may be any one of the first to fifteenth embodiments.

Meanwhile, Figure 26 is a diagram schematically showing a high-intensity focused ultrasound generator according to the twentieth embodiment of the present invention.

Referring to FIG. 26, it is of course possible for the high-intensity focused ultrasound generator according to the twentieth embodiment of the present invention to include one transducer 30 and one ultrasound focusing plate 40.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached patent claims.

According to the present invention, it is possible to manufacture a high-intensity focused ultrasound generator that can more accurately treat local areas.

Claims

A transducer that emits ultrasonic waves when power is applied;

It is disposed in front of the transducer, is formed to allow ultrasonic waves emitted from the transducer to pass through, and at least one slit is formed to allow the ultrasonic waves to be diffracted while passing through, and at least one of the different phases. Contains an ultrasonic focusing module that converts the waves into waves having a , induces interference of the converted waves, and focuses the waves on a preset ultrasonic focusing point.

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

The ultrasonic focusing module,

Characterized in that the surface opposite the transducer is formed in a flat plate shape to simultaneously receive the ultrasonic waves emitted from the transducer,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

The ultrasonic focusing module,

Characterized in that at least a portion of the surface facing the transducer is formed in a three-dimensional shape so that the separation distance from the transducer varies depending on the position.

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

Characterized in that the ultrasonic waves passing through the ultrasonic focusing module are converted into spherical waves.

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

The transducer includes a plurality of transducers,

At least one of the plurality of transducers emits ultrasonic waves having different phases,

Characterized in that the ultrasonic waves passing through the ultrasonic focusing module are converted into spherical waves.

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

The separation distance between the transducer and the ultrasonic focusing module is,

Characterized in that it is set according to at least one of the diameter of the transducer and the wavelength of the ultrasound,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

The size of the slit is set according to the wavelength of the ultrasonic wave,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 7,

A plurality of slits are formed to be spaced apart from each other,

At least some of the plurality of slits are formed in different sizes,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

A plurality of slits are formed to be spaced apart from each other,

The separation distance between the plurality of slits is set according to the wavelength of the ultrasonic waves,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

A plurality of slits are formed to be spaced apart from each other,

The plurality of slits are arranged to form at least one row and at least one column,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

A plurality of slits are formed to be spaced apart from each other,

The plurality of slits are arranged radially from the center of the ultrasonic focusing module,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

The slit is characterized in that the cross-section is formed in at least one shape among circular, polygonal, and round shapes,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

The slit is characterized in that the cross-section is formed in at least one of a ring shape and an arc shape.

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
In claim 1,

The slit is characterized in that it is formed in a shape that expands or contracts in an outward direction from the center of the ultrasonic focusing module.

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
An ultrasonic radiation frame formed with a plurality of coupling holes;

Transducer holders are respectively inserted into the coupling holes in front of the ultrasonic radiation frame and are detachably coupled to penetrate the ultrasonic radiation frame;

A plurality of transducers are mounted on the transducer holders with their front surfaces exposed, arranged to be spaced apart from each other on the front of the ultrasonic radiation frame, and emit ultrasonic waves when power is applied;

It is arranged to be spaced apart from the transducer in the direction of travel of the ultrasonic waves and is detachably coupled to the ultrasonic radiation frame, and the surface opposing the transducer is formed in a flat plate shape to simultaneously receive the ultrasonic waves emitted from the transducer. , a plurality of slits through which the ultrasonic waves pass are formed, causing the ultrasonic waves to be diffracted as they pass through, converting at least one into waves with different phases, and preventing interference of the converted waves. an ultrasonic focusing module that guides and focuses the waves to a preset ultrasonic focusing point;

Comprising a coupling member that detachably couples the ultrasonic focusing module to the ultrasonic radiation frame,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.
An ultrasonic radiation frame formed with a plurality of coupling holes;

Transducer holders are respectively inserted into the coupling holes in front of the ultrasonic radiation frame and are detachably coupled to penetrate the ultrasonic radiation frame;

A plurality of transducers are mounted on the transducer holders with their front surfaces exposed, arranged to be spaced apart from each other on the front of the ultrasonic radiation frame, and emit ultrasonic waves when power is applied;

It is arranged to be spaced apart from the transducer in the direction of travel of the ultrasonic waves and is detachably coupled to the ultrasonic radiation frame, and at least a portion of the surface facing the transducer is three-dimensional so that the separation distance from the transducer varies depending on the position. It is formed in a shape, and a plurality of slits through which the ultrasonic waves pass are formed, causing the ultrasonic waves to be diffracted as they pass through, converting at least one of them into waves with different phases, and causing interference between the converted waves. An ultrasonic focusing module that induces interference and focuses the waves on a preset ultrasonic focusing point;

Comprising a coupling member that detachably couples the ultrasonic focusing module to the ultrasonic radiation frame,

A high-intensity focused ultrasound generator that focuses ultrasound waves using a slit.