Large-focal-region ultrasound therapy instrument

Abstract

The present application discloses a large-focal-region ultrasound therapy instrument. The large-focal-region ultrasound therapy instrument comprises a housing, a support, and an ultrasonic transduction mechanism; a therapy window is formed at one end of the housing; the support is provided in the housing; the ultrasonic transduction mechanism is mounted on the support and is opposite to the therapy window; the ultrasonic transduction mechanism is used for transmitting ultrasonic waves to a surface to be treated, so as to form a focal region extending in a horizontal direction; the focal region comprises a plurality of focal region units; each focal region unit has a focal point or a focal line; and a plurality of focal points or focal lines are arranged at intervals.

Description

Large focal range ultrasound therapy device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 25, 2023, with application number 202310757822.3 and invention name “Large Focal Area Ultrasound Therapeutic Device”, the entire contents of which are incorporated by reference into the application. Technical Field

[0002] The present application relates to the technical field of ultrasonic therapy equipment, and in particular to a large-focal-range ultrasonic therapy device. Background Art

[0003] In recent years, non-invasive cosmetic treatments using focused ultrasound have been widely used. The principle is that focused ultrasound waves are emitted from a focused ultrasound ceramic disc installed inside the treatment head. After being conducted through a liquid conductor, the focused ultrasound waves are focused onto the subcutaneous tissue or adipose tissue, forming a very small (usually less than 1 mm) "hot spot" with a temperature of up to 50-75°C on the local subcutaneous tissue or adipose tissue. This causes the local subcutaneous tissue (skin tissue or adipose tissue at a depth of 1-18 mm) to contract under the action of the high temperature, and the adipose tissue "burns fat" under the action of the range, thereby achieving the cosmetic effects of improving skin firmness and losing weight.

[0004] Existing ultrasonic therapeutic devices adjust the frequency of ultrasonic emission on the basis of increasing the treatment range, so that the ultrasonic waves are focused to form a focal area arranged along the vertical direction; however, the focal area arranged along the vertical direction will act on the subcutaneous tissue layer of the human body at different depths, and the treatment effects achieved on the subcutaneous tissue layers at different depths are uneven, resulting in the large-focus ultrasonic therapeutic device being unable to accurately treat the subcutaneous tissue layer at the target depth, so that the large-focus ultrasonic therapeutic device requires more time to effectively act on the subcutaneous tissue layer at the target depth, which greatly affects the treatment efficiency of the large-focus ultrasonic therapeutic device. Technical issues

[0005] The main purpose of this application is to provide a large-focal-area ultrasound therapeutic device, which aims to form a horizontal focusing area to accurately treat the subcutaneous tissue layer at the target depth, thereby improving the treatment efficiency of the large-focal-area ultrasound therapeutic device. Technical Solutions

[0006] To achieve the above objectives, the present application proposes a large-focus ultrasonic therapeutic device, which includes:

[0007] a housing, wherein a treatment window is formed at one end of the housing;

[0008] a bracket, the bracket being disposed in the housing; and

[0009] An ultrasonic transducer mechanism is mounted on the bracket and arranged opposite to the treatment window; the ultrasonic transducer mechanism is used to transmit to the plane to be treated to form a planar focusing area extending in the horizontal direction, the planar focusing area includes a plurality of focusing area units, each of the focusing area units has a focusing point or a focusing line, and the plurality of focusing points or focusing lines are arranged at intervals.

[0010] In one embodiment, the plurality of focusing points / the focusing lines are arranged in a rectangular array, a circular array, an elliptical array, or a ring array.

[0011] In one embodiment, each of the focusing points has a corresponding heat spreading area.

[0012] In one embodiment, the center temperature of all the focal points is the same, and the center temperature of each focal point is in the range of 48°C-80°C.

[0013] In one embodiment, the center temperatures of two adjacent focusing points are set differently.

[0014] In one embodiment, each of the focusing area units is rectangular, circular, elliptical or ring-shaped.

[0015] In one embodiment, the shapes of the plurality of focusing area units are identical.

[0016] In one embodiment, the shapes of the plurality of focusing area units are arranged differently.

[0017] In one embodiment, the ultrasonic transducer mechanism includes a plurality of transducers disposed on the bracket, the plurality of transducers are arranged at intervals, and each of the transducers is used to form a focusing point.

[0018] In one embodiment, the ultrasonic transducer mechanism is a transducer provided on the bracket, and the transducer is provided with multiple emitting surfaces, the curvature areas corresponding to the multiple emitting surfaces are different, and each curvature area corresponds to one focusing point.

[0019] In one embodiment, the ultrasonic transducer mechanism includes a central transducer and at least one sub-transducer, wherein the sub-transducer is arranged adjacent to the central transducer and located on the outside of the central transducer; the central transducer is a spherical transducer, and the sub-transducer is an annular transducer.

[0020] In one embodiment, the transducer is a tile-shaped transducer, and the tile-shaped transducer is used to focus to form a column of the focusing points, so that the column of the focusing points converge to form a focal line.

[0021] In one embodiment, the plurality of focusing points are arranged at equal intervals;

[0022] And / or, the distance between two adjacent focal points is in the range of 0.1 mm to 2 mm.

[0023] In one embodiment, the large focal range ultrasonic therapeutic apparatus further includes an acoustic lens, which is provided on the ultrasonic transducer mechanism and is used to focus the ultrasonic waves emitted by the ultrasonic transducer mechanism. Beneficial effects

[0024] The large focal range ultrasonic therapeutic device of the technical solution of the present application includes a shell, a bracket and an ultrasonic transducer mechanism, a treatment window is opened at one end of the shell; the bracket is arranged in the shell; the ultrasonic transducer mechanism is installed on the bracket and arranged opposite to the treatment window; the ultrasonic transducer mechanism is used to emit to the plane to be treated to form a focusing area extending in the horizontal direction, the focusing area includes multiple focusing area units, each focusing area unit has a focusing point or focusing line, and the multiple focusing points or focusing lines are arranged at intervals; in this way, the energy used in the focusing area can act evenly on the subcutaneous tissue layer of the user's target depth, thereby accurately treating the subcutaneous tissue layer at the target depth, thereby improving the treatment efficiency of the large focal range ultrasonic therapeutic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] FIG1 is a schematic structural diagram of an embodiment of a large focal range ultrasound therapeutic apparatus of the present application;

[0027] FIG2 is a schematic structural diagram of a first embodiment of an ultrasonic transducer mechanism of a large focal range ultrasonic therapeutic apparatus of the present application;

[0028] FIG3 is a schematic structural diagram of a second embodiment of an ultrasonic transducer mechanism of a large focal range ultrasonic therapeutic apparatus of the present application;

[0029] FIG4 is a schematic diagram of the structure of the acoustic lens of the large focal range ultrasound therapeutic apparatus of the present application.

[0030] Description of Figure Numbers:

[0031] Reference numerals Reference numerals 10 Housing 100 Focusing area 20 Bracket 200 Focusing area unit 30 Ultrasonic transducer mechanism 300 Focusing point 31 Emitting surface 400 Focusing line 40 Acoustic lens

[0032] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0033] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0036] The heat diffusion zone formed by focused ultrasound waves in the subcutaneous tissue layer is generally ellipsoidal in shape, centered at the focal point. Existing single-focus, wide-focus ultrasound therapeutic devices use a larger single-shot energy to enhance the therapeutic effect of each ultrasound wave and expand its effective range. This focuses the ultrasound waves into vertically arranged ultrasound focus zones. These vertically arranged ultrasound focus zones act on subcutaneous tissue layers at different depths, achieving different therapeutic effects at different depths. This results in an uneven distribution of energy required for treatment. Consequently, to achieve optimal treatment of the subcutaneous tissue layer at the target depth, more ultrasound waves and more time are required for focused treatment, severely impacting the therapeutic efficiency of the wide-focus ultrasound therapeutic device.

[0037] To this end, the present application proposes a large focal range ultrasound therapeutic device.

[0038] In the embodiment of the present application, referring to Figures 1 to 4, the large focal range ultrasonic therapeutic device includes a housing 10, a bracket 20 and an ultrasonic transducer mechanism 30. A treatment window is opened at one end of the housing 10; the bracket 20 is arranged in the housing 10; the ultrasonic transducer mechanism 30 is mounted on the bracket 20 and arranged opposite to the treatment window; the ultrasonic transducer mechanism 30 is used to transmit to the plane to be treated to form a focal area 100 extending in the horizontal direction. The focal area 100 includes a plurality of focal area units 200, each of which has a focal point 300 or a focal line, and the plurality of focal points 300 or focal lines are arranged at intervals.

[0039] In one embodiment, the ultrasonic transducer mechanism 30 is secured within the housing 10 via a bracket 20, with the ultrasonic transducer mechanism 30's ultrasonic wave transmission port oriented opposite the treatment window of the housing 10. When powered on, the ultrasonic transducer mechanism 30 transmits ultrasonic waves through the treatment window of the housing 10 toward the user's skin (the surface to be treated). The ultrasonic waves emitted by the ultrasonic transducer mechanism 30 form a three-dimensional heat diffusion zone within the user's subcutaneous tissue layer. The projection of the three-dimensional heat diffusion zone perpendicular to the user's skin forms a horizontally extending focal region 100. This focal region 100 is formed by a plurality of focal region units 200 arranged and spliced ​​in sequence along the horizontal direction. This ensures that the ultrasonic waves emitted by the ultrasonic transducer mechanism 30 precisely impact the user's subcutaneous tissue layer at the target depth and avoid penetrating into subcutaneous tissue layers at non-target depths where treatment is not required.

[0040] When each focal point 300 acts on the subcutaneous tissue layer at the target depth, each focal point 300 has a corresponding heat diffusion area, and the heat diffusion area has heat that diffuses outward. The area of ​​the projection of the heat diffusion area of ​​each focal point 300 perpendicular to the plane to be treated is the focal area unit 200. Therefore, by arranging multiple focal points 300 at intervals, the heat diffusion areas corresponding to two adjacent focal points 300 will not overlap, and each focal area unit 200 can act independently on the subcutaneous tissue layer at the target depth. In this way, the energy used by the focal area 100 can evenly act on the subcutaneous tissue layer at the target depth of the user, thereby accurately treating the subcutaneous tissue layer at the target depth and improving the treatment efficiency of the large-focal-range ultrasound therapeutic device.

[0041] In one embodiment, referring to Figures 1 to 4 , multiple focusing points 300 / focusing lines are arranged in a rectangular array, a circular array, an elliptical array, or an annular array. The focus area 100 formed by the multiple focusing points 300 is also arranged in a rectangular, circular, elliptical, or annular shape. This more regular shape of the focus area 100 allows operators to more precisely control the treatment area when operating the wide-focus ultrasound therapeutic device. It also facilitates operator calculation of the user's treatment area, thereby providing accurate data statistics and reference for subsequent treatment plans.

[0042] In another embodiment, the multiple focusing points 300 may be arranged in a combination of a circular array and an annular array; or, the multiple focusing points 300 may be arranged in a rectangular array or an annular array, etc. The specific array arrangement combinations are not listed here one by one.

[0043] By arranging and combining a variety of shapes together, multiple focusing points 300 form a focusing area 100 to form an irregular shape. This is more conducive to treating the user's irregular treatment area, thereby increasing the treatment range of the large focal area ultrasound therapeutic device.

[0044] In one embodiment, referring to FIG. 1 to FIG. 4 , each focusing point 300 has a corresponding heat spreading area.

[0045] In one embodiment, the focused ultrasonic energy will exhibit a thermal effect in the human subcutaneous tissue layer and diffuse in all directions around the focal point 300, with the temperature being the highest at the center and gradually decreasing radially. The area where the temperature of the thermal effect reaches the effective treatment range is called the thermal diffusion zone; and the height of the thermal diffusion zone is the height of the space in the subcutaneous tissue layer where the focusing point 300 or the focal line plays an effective therapeutic role in the vertical direction; by making the height of each thermal diffusion zone equal to the thickness of the focal area unit 200, the single ultrasonic energy corresponding to each focal point 300 can fully act on the human subcutaneous tissue layer, thereby improving the energy utilization rate of the focal area unit 200, thereby enhancing the therapeutic effect of the large focal area ultrasonic therapeutic device.

[0046] In one embodiment, referring to FIG. 1 to FIG. 4 , the center temperature of all the focus points 300 is the same, and the center temperature of each focus point 300 is in the range of 48° C. to 80° C.

[0047] In one embodiment, by maintaining the central temperature of focal point 300 within this range, the heat diffusion zone corresponding to focal point 300 can not only avoid damaging the user's skin but also achieve effective treatment results. The central temperature of focal point 300 is determined by the specific energy value and focal distance of a single ultrasonic wave. These specific energy value and focal distance can be calculated by the main control chip of the ultrasonic transducer mechanism 30 and controlled by the main control chip, thereby enabling the ultrasonic transducer mechanism 30 to provide precise treatment to the user.

[0048] In one embodiment, referring to FIG1 to FIG4, the center temperatures of two adjacent focus points 300 are set differently. In this way, each focus point 300 can be set according to the user's actual treatment plan, that is, the location with high treatment intensity is treated with the focus point 300 with a higher center temperature, and the location with low treatment intensity is treated with the focus point 300 with a lower center temperature, thereby improving the efficiency of the large focal range ultrasound therapeutic device.

[0049] In one embodiment, referring to FIG. 1 to FIG. 4 , each focusing area unit 200 is in a rectangular, circular, elliptical or ring shape.

[0050] In one embodiment, the shape of the focal area unit 200 can be achieved by providing the transducer with an emitting surface 31 of different shapes or providing the emitting port of the emitting head of the transducer with different shapes; a single ultrasonic wave is emitted by the transducer and forms a three-dimensional heat diffusion area in the subcutaneous tissue layer of the user. The heat diffusion area of ​​a sphere is projected perpendicularly on the skin surface of the user as a circular focal area unit 200, the heat diffusion area of ​​a rectangle is projected perpendicularly on the skin surface of the user as a rectangular focal area unit 200, the heat diffusion area of ​​an ellipsoid is projected perpendicularly on the skin surface of the user as an elliptical focal area unit 200, and the heat diffusion area of ​​an annular body is projected perpendicularly on the skin surface of the user as a ring-shaped focal area unit 200.

[0051] By configuring the focus area unit 200 to have a regular shape such as a rectangle, circle, or oval, the regularly shaped focus area unit 200 allows the staff to more conveniently control the treatment area. That is, on the same treatment plane, as long as multiple focus area units 200 are arranged in sequence along the horizontal direction, there will be no overlapping between two adjacent focus area units 200, thereby improving the treatment efficiency of the large focal area ultrasound therapeutic device.

[0052] In one embodiment, referring to Figures 1 to 4 , the multiple focus area units 200 are configured to be identical in shape. Specifically, by configuring the multiple focus area units 200 to be identical, the multiple focus area units 200 not only form a regular focus area 100, but also make the focus area 100 more uniform after splicing, and the gap between adjacent focus area units 200 is smaller, thereby improving the therapeutic effect of the large focal area ultrasound therapeutic device.

[0053] In another embodiment, referring to Figures 1 to 4, the shapes of the multiple focus area units 200 are arranged in different configurations. Specifically, the focus area units 200 of different shapes are combined and arranged according to the actual treatment area and treatment plan of the current user. This configuration allows the focus area 100 formed by the focus area units 200 of different shapes to treat the user more specifically, thereby ensuring the effectiveness of the ultrasound treatment.

[0054] In the first embodiment, referring to Figures 1 to 4, the ultrasonic transducer mechanism 30 includes a plurality of transducers disposed on a support 20, the plurality of transducers being spaced apart, and each transducer being configured to form a focal point 300. Specifically, by fixing a plurality of transducers that emit single-shot ultrasonic energy on the support 20, each transducer can form a focal point 300. Compared to the conventional method of focusing with a single transducer at the same frequency, this embodiment utilizes a plurality of transducers that emit ultrasonic energy at a lower frequency for treatment. The planar focal area 100 formed by the ultrasonic transducer mechanism 30 of this structure has more uniform energy, thereby providing effective and rapid treatment without damaging the user's skin, thereby enhancing the therapeutic effect of the ultrasonic transducer mechanism 30.

[0055] In the second embodiment, referring to Figures 1 to 4, the ultrasonic transducer mechanism 30 is a transducer mounted on a support 20. The transducer is provided with multiple emitting surfaces 31. Each of the emitting surfaces 31 corresponds to a different curvature region, and each curvature region corresponds to a focal point 300. Specifically, given the different distances between the multiple emitting surfaces 31 and the user's skin, a single transducer is used to provide multiple emitting surfaces 31 with different curvatures. In this way, the emitting surfaces 31 with different curvatures can all form a focal point 300 with equal energy in the user's subcutaneous tissue layer, thereby forming a planar focal area 100 with uniform energy distribution, thereby enhancing the therapeutic effect of the ultrasonic transducer mechanism 30.

[0056] In one embodiment, referring to FIG3 , the ultrasonic transducer mechanism 30 includes a central transducer and at least one sub-transducer, which is disposed adjacent to the central transducer and located outside the central transducer. The central transducer is a spherical transducer, and the sub-transducer is an annular transducer.

[0057] In one embodiment, a combination of a central transducer and a sub-transducer can form a more diverse range of combined shapes of focal areas. In this way, a more diverse range of combined shapes of focal areas better meets the complex treatment needs of different users, thereby increasing the treatment range of the large focal range ultrasound therapeutic device. In this embodiment, the central transducer can be a spherical transducer, and the sub-transducer can be an annular transducer. In this way, the spherical transducer located in the center forms a circular focal area on the skin surface, and the annular transducer forms an annular focal area on the skin surface. The circular focal area and the annular focal area are combined. The shapes of the central transducer and the sub-transducer are not limited to the above shapes, and can also be other shapes, as long as they meet the actual treatment requirements.

[0058] In one embodiment, referring to FIG2 , the transducer is a tile-shaped transducer, which is used to focus to form a focal line 400. Specifically, the tile-shaped transducer focuses on the user's subcutaneous tissue layer, and the resulting heat diffusion zone is projected perpendicularly onto the treatment plane as a line (focal line 400). Multiple focal lines 400 are on the same plane, converging to form a rectangular planar focal area 100. The converged planar focal area 100 is more easily flattened on the treatment plane, and the energy in the planar focal area 100 is more uniform, thereby enhancing the therapeutic effect of the large-focal-zone ultrasound therapeutic device.

[0059] In one embodiment, referring to FIG. 1 , the plurality of focusing points 300 are arranged at equal intervals; the interval between two adjacent focusing points 300 is in the range of 0.1 mm to 2 mm.

[0060] In one embodiment, the multiple focal points 300 are arranged with the same spacing, so that the two focal area units 200 corresponding to two adjacent focal points 300 do not overlap, which not only makes the energy corresponding to the focal area 100 more uniform, but also facilitates the control of the energy generated by the focal area 100. The specific data of the spacing between two adjacent focal points 300 is determined by the user's treatment location or treatment needs. For example, if the treatment location is the arm, the spacing between the two focal points 300 will be smaller, so that the energy generated by the focal area 100 is relatively concentrated, thereby more effectively affecting the skin of the arm with a thicker subcutaneous fat layer. If the treatment location is the face, the spacing between the two focal points 300 will be larger, so that the focused energy is relatively dispersed, thereby more precisely affecting the skin of the face with a thinner subcutaneous fat layer, thereby reducing damage to the facial skin.

[0061] In one embodiment, referring to Figures 1 and 4, the wide-focal-range ultrasonic therapeutic device further includes an acoustic lens 40, which is disposed on the ultrasonic transducer mechanism 30 and is used to focus the ultrasonic waves emitted by the ultrasonic transducer mechanism 30. Specifically, the acoustic lens 40 is a curved acoustic lens 40, which is mounted on the emitting surface 31 of the transducer. A curved acoustic lens 40 is mounted on the emitting surface 31. After the emitting surface 31 emits sound waves, the sound waves are refracted in the curved acoustic lens 40 to form a more uniform and stable energy focal area 100 outside the treatment window, thereby treating the user and improving the therapeutic effect of the wide-focal-range ultrasonic therapeutic device.

[0062] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the present application specification and drawings under the application concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A large focal range ultrasonic therapeutic apparatus, wherein: The large focal range ultrasonic therapeutic apparatus comprises: A shell, one end of which is provided with a treatment window; a bracket, the bracket being disposed in the housing; and An ultrasonic transducer mechanism is mounted on the bracket and arranged opposite to the treatment window; the ultrasonic transducer mechanism is used to transmit to the plane to be treated to form a focusing area extending in the horizontal direction, the focusing area includes a plurality of focusing area units, each of the focusing area units has a focusing point or a focusing line, and the plurality of focusing points or the focusing lines are arranged at intervals.

2. The large focal range ultrasonic therapeutic apparatus according to claim 1, wherein: The plurality of focusing points / focusing lines are arranged in a rectangular array, a circular array, an elliptical array or a ring array.

3. The large focal range ultrasonic therapeutic apparatus as claimed in claim 2, wherein: Each of the focusing points has a corresponding heat dissipation area.

4. The large focal range ultrasonic therapeutic apparatus as claimed in claim 3, wherein: The central temperatures of all the focal points are the same, and the central temperature of each of the focal points ranges from 48°C to 80°C.

5. The large focal range ultrasonic therapeutic apparatus as claimed in claim 3, wherein: The central temperatures of two adjacent focusing points are set differently.

6. The large focal range ultrasonic therapeutic apparatus according to claim 4 or 5, wherein: Each of the focus area units is in a rectangular, circular, elliptical or ring shape.

7. The large focal range ultrasonic therapeutic apparatus according to claim 4, wherein: The shapes of the plurality of focus area units are arranged in the same manner.

8. The large focal range ultrasonic therapeutic apparatus according to claim 5, wherein: The shapes of the plurality of focus area units are arranged in different ways.

9. The large focal range ultrasonic therapeutic apparatus according to claim 1, wherein: The ultrasonic transducer mechanism comprises a plurality of transducers arranged on the bracket, the plurality of transducers are arranged at intervals, and each of the transducers is used to form a focusing point.

10. The large focal range ultrasonic therapeutic apparatus according to claim 1, wherein: The ultrasonic transducer mechanism is a transducer arranged on the bracket. The transducer is provided with a plurality of emitting surfaces. The curvature regions corresponding to the plurality of emitting surfaces are different, and each curvature region corresponds to a focusing point.

11. The large focal range ultrasonic therapeutic apparatus according to claim 1, wherein: The ultrasonic transducer mechanism comprises a central transducer and at least one sub-transducer, wherein the sub-transducer is arranged adjacent to the central transducer and located outside the central transducer; the central transducer is a spherical transducer, and the sub-transducer is an annular transducer.

12. The large focal range ultrasonic therapeutic apparatus according to claim 9 or 10, wherein: The transducer is a tile-shaped transducer, and the tile-shaped transducer is used for focusing to form a focal line.

13. The large focal range ultrasonic therapeutic apparatus according to claim 1, wherein: The plurality of focusing points are arranged at equal intervals; And / or, the distance between two adjacent focusing points ranges from 0.1 mm to 2 mm.

14. The large focal range ultrasonic therapeutic apparatus according to claim 1, wherein: The large focal range ultrasonic therapeutic apparatus further comprises an acoustic lens, which is arranged on the ultrasonic transducer mechanism and is used for focusing the ultrasonic waves emitted by the ultrasonic transducer mechanism.

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