Ultrasonic therapeutic apparatus with a wide focal region

Abstract

This application discloses an ultrasonic therapeutic apparatus with a wide focal region. The ultrasonic therapeutic apparatus with a wide focal region includes a housing, a bracket, and an ultrasonic transducer mechanism. A treatment window is opened at one end of the housing. The bracket is provided inside the housing. The ultrasonic transducer mechanism is attached to the bracket and is disposed opposite to the treatment window. The ultrasonic transducer mechanism is used to form a focusing region that radiates to the plane of the treatment target and extends horizontally. The focusing region includes a plurality of focusing region units, each focusing region unit has a focusing point or a focusing line, and a plurality of focusing points or focusing lines are arranged at intervals.

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on June 25, 2023, with the application number 202310757822.3 and the invention title "Ultrasonic Therapeutic Apparatus with a Wide Focal Region", and the entire content thereof is incorporated herein by reference.

[0002] This application relates to the technical field of ultrasonic physiotherapy devices, and particularly to an ultrasonic therapeutic apparatus with a wide focal region.

Background Art

[0003] In recent years, non-invasive cosmetic techniques using focused ultrasound have been widely used. The principle is to emit focused ultrasound through a focused ultrasound ceramic piece installed in the treatment head. After the focused ultrasound is conducted through a liquid conductor, it is focused on the subcutaneous tissue or adipose tissue, and a "high-temperature point" with a small volume (usually less than 1 millimeter) and capable of reaching 50 - 75 °C is formed in the local subcutaneous tissue or adipose tissue. Due to the high-temperature effect, the local subcutaneous tissue (skin tissue or adipose tissue with a depth of 1 - 18 millimeters) shrinks, and the adipose tissue "burns fat" under a wide range of action, obtaining cosmetic effects such as improving skin firmness and dieting.

[0004] Conventional ultrasonic therapeutic apparatuses adjust the radiation frequency of ultrasound to focus the ultrasound and form a focused region distributed along the vertical direction in order to expand the treatment range. However, the focused region distributed along the vertical direction acts on subcutaneous tissue layers at different depths in the human body, and the treatment effects achieved in subcutaneous tissue layers at different depths are different. As a result, an ultrasonic therapeutic apparatus with a wide focal region cannot accurately treat the subcutaneous tissue layer at the target depth, and a longer time is required to effectively act on the subcutaneous tissue layer at the target depth, which greatly affects the treatment efficiency of the ultrasonic therapeutic apparatus with a wide focal region.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The main object of the present application is to provide an ultrasonic therapeutic apparatus with a wide focal region that forms a horizontal focusing region and accurately treats a subcutaneous tissue layer at a target depth, thereby improving the treatment efficiency of the ultrasonic therapeutic apparatus with a wide focal region.

Means for Solving the Problems

[0006] In order to achieve the above object, the ultrasonic therapeutic apparatus with a wide focal region proposed in the present application includes a housing having a treatment window opened at one end thereof, a bracket provided in the housing, an ultrasonic transducer mechanism attached to the bracket and arranged to face the treatment window, wherein the ultrasonic transducer mechanism is used to irradiate a plane of a treatment target to form a plane focusing region extending in the horizontal direction, the plane focusing region includes a plurality of focusing region units, each focusing region unit has a focusing point or a focusing line, and a plurality of the focusing points or the focusing lines are arranged at intervals, and an ultrasonic transducer mechanism.

[0007] In one embodiment, a plurality of the focusing points / the focusing lines are arranged in a rectangular array, a circular array, an elliptical array, or an annular array.

[0008] In one embodiment, each of the focusing points has a corresponding heat diffusion region.

[0009] In one embodiment, the central temperatures of all the focusing points are the same, and the central temperature of each focusing point is in the range of 48°C to 80°C.

[0010] In one embodiment, the central temperatures of two adjacent focusing points are set to be different.

[0011] In one embodiment, the shape of each of the focusing region units is rectangular, circular, elliptical, or annular.

[0012] In one embodiment, the shapes of a plurality of the focusing region units are arranged in the same manner.

[0013] In one embodiment, the shapes of the plurality of the focusing region units are arranged to be different.

[0014] In one embodiment, the ultrasonic transducer mechanism includes a plurality of transducers provided on the bracket, the plurality of transducers are arranged at intervals, and each of the transducers is used to form the focusing point.

[0015] In one embodiment, the ultrasonic transducer mechanism is one transducer provided on the bracket, the transducer is provided with a plurality of radiation surfaces, the curvature regions corresponding to the plurality of radiation surfaces are different from each other, and each of the curvature regions corresponds to one of the focusing points.

[0016] In one embodiment, the ultrasonic transducer mechanism includes a central transducer and at least one sub-transducer arranged adjacent to and outside the central transducer, the central transducer is a spherical transducer, and the sub-transducer is an annular transducer.

[0017] In one embodiment, the transducer is a tile-shaped transducer, the tile-shaped transducers converge to form a row of the focusing points, and thereby, the row of the focusing points converges to form a focusing line.

[0018] In one embodiment, the plurality of the focusing points are arranged at equal intervals, and / or, the distance between two adjacent ones of the focusing points is in the range of 0.1 mm to 2 mm.

[0019] In one embodiment, the ultrasonic therapeutic apparatus with a wide focal region further includes an acoustic lens provided on the ultrasonic transducer mechanism for focusing the ultrasonic waves radiated by the ultrasonic transducer mechanism.

Advantages of the Invention

[0020] The ultrasonic therapeutic apparatus with a wide focal region according to the technical solution of the present application includes a housing, a bracket, and an ultrasonic transducer mechanism. A treatment window is opened at one end of the housing. The bracket is provided inside the housing. The ultrasonic transducer mechanism is provided on the bracket and is arranged opposite to the treatment window. The ultrasonic transducer mechanism is used to form a planar focusing region that radiates to the plane of the treatment target and extends in the horizontal direction. The focusing region includes a plurality of focusing region units. Each focusing region unit has a focusing point or a focusing line. The plurality of focusing points or focusing lines are arranged at intervals. Thereby, the energy used in the focusing region can act uniformly on the subcutaneous tissue layer at the target depth of the user, accurately treat the subcutaneous tissue layer at the target depth, and improve the treatment efficiency of the ultrasonic therapeutic apparatus with a wide focusing region.

[0021] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings necessary for the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. A person skilled in the art can obtain other drawings based on the structures shown in these drawings without creative efforts.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

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Figure 4

Modes for Carrying Out the Invention

[0023] The realization of the objectives, functional features, and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts are included within the protection scope of the present application.

[0025] It should be noted that all the direction indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement status between components in a specific posture (as shown in the figure). When the specific posture changes, the corresponding direction indication also changes accordingly.

[0026] In addition, the descriptions including "first", "second", etc. in the present application are only for the purpose of explanation, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited as "first" and "second" may implicitly include at least one of the features. Furthermore, the technical solutions of each embodiment may be combined with each other, but they must be achievable by those skilled in the art. If the combination of technical solutions is contradictory or unachievable, such a combination of technical solutions does not exist and is not included within the protection scope claimed by the present application.

[0027] The heat diffusion region formed in the subcutaneous tissue layer by focused ultrasound generally has an ellipsoidal shape centered on the focus point. In order to improve the therapeutic effect of each ultrasonic wave and expand the effective range, existing ultrasonic therapy devices with a wide focal region equipped with a single focus point focus the ultrasonic wave using a larger single-shot energy to form an ultrasonic focusing region distributed along the vertical direction. The ultrasonic focusing regions distributed along the vertical direction act on subcutaneous tissue layers at different depths, and the therapeutic effects achieved in subcutaneous tissue layers at different depths are also different. As a result, the distribution of the energy required for treatment becomes non-uniform. Therefore, to more appropriately treat the subcutaneous tissue layer at the target depth, more ultrasonic waves and time are consumed, which seriously affects the treatment efficiency of the ultrasonic therapy device with a wide focal region.

[0028] Therefore, the present application proposes an ultrasonic therapy device with a wide focal region.

[0029] In an embodiment of the present application, referring to FIGS. 1 to 4, the ultrasonic therapy device with a wide focal region 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 provided inside the housing 10. The ultrasonic transducer mechanism 30 is attached to the bracket 20 and is disposed opposite to the treatment window. The ultrasonic transducer mechanism 30 is used to form a focusing region 100 that radiates to the plane of the treatment target and extends in the horizontal direction. The focusing region 100 includes a plurality of focusing region units 200. Each focusing region unit 200 has a focus point 300 or a focusing line. The plurality of focus points 300 or focusing lines are arranged at intervals.

[0030] In one embodiment, the ultrasonic transducer mechanism 30 is fixed inside the housing 10 via the bracket 20, and the radiation port for emitting ultrasonic waves of the ultrasonic transducer mechanism 30 faces the treatment window of the housing 10. When the power of the ultrasonic transducer mechanism 30 is turned on, the ultrasonic transducer mechanism 30 emits ultrasonic waves to the user's skin (the plane of the treatment target) through the treatment window of the housing 10, and the ultrasonic waves emitted by the ultrasonic transducer mechanism 30 form a three-dimensional heat diffusion region in the user's subcutaneous tissue layer. The vertical projection of the three-dimensional heat diffusion region on the user's skin is the focusing region 100 extending in the horizontal direction, and the focusing region 100 is formed by a plurality of focusing region units 200 arranged and combined sequentially in the horizontal direction. Thereby, the ultrasonic waves emitted from the ultrasonic transducer mechanism 30 can accurately act on the subcutaneous tissue layer at the target depth of the user and do not penetrate into the subcutaneous tissue layer at a non-target depth that does not require treatment.

[0031] When each focusing point 300 acts on the subcutaneous tissue layer at the target depth, each focusing point 300 has a corresponding heat diffusion region, and there is heat diffusing outward in the heat diffusion region. The vertical projection region of the heat diffusion region of each focusing point 300 on the plane of the treatment target is the focusing region unit 200. Therefore, by arranging a plurality of focusing points 300 at intervals, the heat diffusion regions corresponding to two adjacent focusing points 300 do not overlap, whereby each focusing region unit 200 can act independently in the subcutaneous tissue layer at the target depth. In this way, the energy used in the focusing region 100 can act uniformly on the subcutaneous tissue layer at the target depth of the user, and the subcutaneous tissue layer at the target depth of the user can be accurately treated, improving the treatment efficiency of an ultrasonic therapeutic apparatus with a wide focal region.

[0032] In one embodiment, referring to FIGS. 1 to 4, a plurality of focusing points 300 / focusing lines are distributed in a rectangular array, a circular array, an elliptical array, or an annular array. Therefore, the focusing region 100 formed by the plurality of focusing points 300 is also arranged in a rectangular, circular, elliptical, or annular shape, and the shape of the focusing region 100 becomes more aligned. In this way, when the staff operates an ultrasonic therapeutic apparatus with a wide focal region, not only can the treatment region be controlled more accurately, but it also becomes easier to calculate the area of the treatment region of the user, and accurate data statistics and references can be created for subsequent treatment plans.

[0033] In another embodiment, the plurality of focusing points 300 may be arranged in a combination of a circular array and an annular array, or the plurality of focusing points 300 may be arranged in a rectangular array or an annular array, etc. Specific array combinations are not listed here.

[0034] By using various shape combinations, the plurality of focusing points 300 are formed into a focusing region 100 with a special shape, thus contributing to the treatment of the user's treatment region with a special shape, thereby expanding the treatment range of the ultrasonic therapeutic apparatus with a wide focal region.

[0035] In one embodiment, referring to FIGS. 1 to 4, each focusing point 300 has a corresponding heat diffusion region.

[0036] In one embodiment, the energy of the focused ultrasound exhibits a thermal effect within the subcutaneous tissue layer of the human body, spreads around the focusing point 300, has the highest central temperature, gradually decreases along the radial direction, and the region where the temperature of the thermal effect reaches the effective treatment range becomes the heat diffusion region. The height of the heat diffusion region is the vertical height of the space where the focusing point 300 or the focusing line plays an effective therapeutic role in the subcutaneous tissue layer. By making the height of each heat diffusion region equal to the thickness of the focusing region unit 200, the single ultrasonic energy corresponding to each focusing point 300 can fully act on the subcutaneous tissue layer of the human body. In this way, the energy utilization rate of the focusing region unit 200 is improved, thereby improving the treatment effect of the ultrasonic therapeutic apparatus with a wide focal region.

[0037] In one embodiment, referring to FIGS. 1 to 4, the central temperatures of all the focal points are the same, and the central temperature of each focal point ranges from 48°C to 80°C.

[0038] In one embodiment, by setting the value of the central temperature of the focal point 300 within this interval, the heat diffusion region corresponding to the focal point 300 can not only avoid damaging the user's skin, but also achieve an effective therapeutic effect. The central temperature of the focal point 300 is determined by the specific energy value of a single ultrasonic wave and the focusing distance. The specific energy value of a single ultrasonic wave and the focusing distance can be calculated by the main control chip of the ultrasonic transducer mechanism 30. By controlling the operation through the main control chip, the ultrasonic transducer mechanism 30 can accurately treat the user.

[0039] In one embodiment, referring to FIGS. 1 to 4, the central temperatures of two adjacent focal points 300 are set to be different. By setting it in this way, each focal point 300 can be set according to the user's actual treatment plan. That is, for the position with a high treatment intensity, treatment is performed using the focal point 300 with a higher central temperature, and for the position with a low treatment intensity, treatment is performed using the focal point 300 with a lower central temperature, thereby improving the treatment efficiency of the ultrasonic therapeutic apparatus with a wide focal region.

[0040] In one embodiment, referring to FIGS. 1 to 4, the shape of each focusing region unit 200 is rectangular, circular, elliptical, or annular.

[0041] In one embodiment, the shape of the focusing region unit 200 may be realized by arranging radiation surfaces 31 of different shapes on the transducer or arranging radiation openings of different shapes of the radiation head of the transducer. A single ultrasonic wave is radiated through the transducer to form a three-dimensional heat diffusion region in the subcutaneous tissue layer of the user. The vertical projection of the spherical heat diffusion region on the skin surface of the user is the circular focusing region unit 200. The vertical projection of the rectangular heat diffusion region on the skin surface of the user is the rectangular focusing region unit 200. The vertical projection of the ellipsoidal heat diffusion region on the skin surface of the user is the elliptical focusing region unit 200. The vertical projection of the annular heat diffusion region on the skin surface of the user is the annular focusing region unit 200.

[0042] By arranging the focusing region unit 200 in an aligned shape such as a rectangle, a circle, or an ellipse, with the aligned-shaped focusing region unit 200, the staff can more easily control the treatment region. That is, if a plurality of focusing region units 200 are distributed in sequence along the horizontal direction on the plane of the same treatment target, there is no overlapping portion between two adjacent focusing region units 200, so the treatment efficiency of an ultrasonic therapeutic apparatus with a wide focal region can be improved.

[0043] In one embodiment, referring to FIGS. 1 to 4, the shapes of the plurality of focusing region units 200 are arranged in the same manner. Specifically, by arranging each of the plurality of focusing region units 200 to be the same, not only can the plurality of focusing region units 200 be formed into an aligned focusing region 100, but also the combined focusing region 100 becomes more uniform and the gap between two adjacent focusing region units 200 becomes smaller, thereby improving the treatment effect of an ultrasonic therapeutic apparatus with a wide focal region.

[0044] In another embodiment, referring to FIGS. 1 to 4, the shapes of the plurality of focusing region units 200 are arranged differently. Specifically, according to the actual treatment region and plan of the current user, different-shaped focusing region units 200 are combined and arranged, whereby the focusing region 100 formed by the different-shaped focusing region units 200 can more accurately treat the user and ensure the effect of ultrasonic treatment.

[0045] In the first embodiment, referring to FIGS. 1 to 4, the ultrasonic transducer mechanism 30 includes a plurality of transducers provided on the bracket 20, the plurality of transducers are arranged at intervals, and each transducer is used to form a focusing point 300. Specifically, a plurality of transducers that emit single ultrasonic energy are fixed to the bracket 20, and as a result, each transducer can form a focusing point 300. Compared with the conventional method of focusing at the same frequency using a single transducer, this embodiment treats using a plurality of transducers that emit low-frequency ultrasonic energy, and the planar focusing region 100 formed by the ultrasonic transducer mechanism 30 having such a structure has more uniform energy, whereby it can treat effectively and quickly without damaging the user's skin, thereby improving the treatment effect of the ultrasonic transducer mechanism 30.

[0046] In the second embodiment, referring to FIGS. 1 to 4, the ultrasonic transducer mechanism 30 is one transducer provided on the bracket 20. The transducer is provided with a plurality of radiation surfaces 31, and the curvature regions corresponding to the plurality of radiation surfaces 31 are different from each other, and each curvature region corresponds to one focusing point 300. Specifically, considering that the distances between the plurality of radiation surfaces 31 and the user's skin are different, a plurality of radiation surfaces 31 having different curvatures are arranged on a single transducer, whereby the radiation surfaces 31 having different curvatures can form an energy-uniform focusing point 300 in the user's subcutaneous tissue layer, thereby forming a planar focusing region 100 in which energy is uniformly distributed, thereby improving the treatment effect of the ultrasonic transducer mechanism 30.

[0047] In one embodiment, referring to FIG. 3, the ultrasonic transducer mechanism 30 includes a central transducer and at least one sub-transducer arranged adjacent to and located outside the central transducer. The central transducer is a spherical transducer, and the sub-transducer is an annular transducer.

[0048] In one embodiment, by combining and using the central transducer and the sub-transducer, more types of combined-shaped focusing regions can be formed, thereby better meeting the complex treatment needs of different patients and further expanding the treatment range of an ultrasonic therapeutic apparatus with a wide focal region. In this embodiment, the central transducer may be a spherical transducer, and the sub-transducer may be an annular transducer. In this way, the spherical transducer in the center forms a circular focusing region on the skin surface, and the annular transducer forms an annular focusing region on the skin surface, resulting in a structure combining a circular focusing region and an annular focusing region. The shapes of the central transducer and the sub-transducer are not limited to the above shapes as long as they meet the actual treatment needs, and other shapes may also be used.

[0049] In one embodiment, referring to FIG. 2, the transducer is a tile-shaped transducer for forming converging converging lines 400. Specifically, the tile-shaped transducer converges in the subcutaneous tissue layer of the user, and the vertical projection of the heat diffusion region formed by the convergence on the plane of the treatment target is a line (converging line 400). A plurality of converging lines 400 are on the same plane. Therefore, they converge into a rectangular planar converging region 100. The converged planar converging region 100 is more likely to act on the plane of the treatment target, and the energy of the planar converging region 100 becomes more uniform. Thereby, the treatment effect of an ultrasonic therapeutic apparatus with a wide converging region can be improved.

[0050] In one embodiment, referring to FIG. 1, a plurality of converging points 300 are arranged at equal intervals, and the distance between two adjacent converging points 300 is in the range of 0.1 mm to 2 mm.

[0051] In one embodiment, a plurality of converging points 300 are arranged at the same interval so that two converging region units 200 corresponding to two adjacent converging points 300 do not overlap. This not only makes the energy corresponding to the converging region 100 more uniform, but also makes it easier to control the energy formed by the converging region 100. The specific data of the distance between two adjacent converging points 300 is determined by the position of the treatment target of the user or the treatment needs. For example, when the position of the treatment target is on the arm, the distance between the two converging points 300 is smaller, and the energy formed by the converging region 100 is relatively concentrated, so it acts more efficiently on the skin of the arm with a thick subcutaneous fat layer. When the position of the treatment target is on the face, the distance between the two converging points 300 is larger, and the energy formed by the convergence is relatively dispersed, thereby acting more accurately on the skin of the face with a thin subcutaneous fat layer and reducing the damage to the skin of the face.

[0052] In one embodiment, referring to FIGS. 1 to 4, an ultrasonic therapeutic apparatus with a wide focal region is provided in an ultrasonic transducer mechanism 30 and further includes an acoustic lens 40 for focusing the ultrasonic waves radiated by the ultrasonic transducer mechanism 30. Specifically, the acoustic lens 40 is a curved acoustic lens 40, and the acoustic lens 40 is attached to the radiation surface 31 of the transducer. The curved acoustic lens 40 is attached to the radiation surface 31. After the radiation surface 31 radiates sound waves, the sound waves are refracted within the curved acoustic lens 40 to form a focused region 100 having more uniform and stable energy outside the treatment window to treat the user and improve the treatment effect of the ultrasonic therapeutic apparatus with a wide focal region.

[0053] The above is only an example of the embodiments of the present application and is not intended to limit the scope of the patent of the present application. Based on the inventive concept of the present application, all equivalent structural changes made using the specification and the attached drawings of the present application, or directly / indirectly applied to other related technical fields, are included in the scope of patent protection of the present application.

Description of Reference Numerals

[0054] 10 Housing 20 Bracket 30 Ultrasonic Transducer Mechanism 31 Radiation Surface 40 Acoustic Lens 100 Focused Region 200 Focused Region Unit 300 Focusing Point 400 Focusing Line

Claims

1. A housing having a treatment window opened at one end, A bracket provided in the housing, An ultrasonic transducer mechanism attached to the bracket and arranged to face the treatment window, which is used to form a focused region that radiates onto the plane of the treatment target and extends horizontally, the focused region includes a plurality of focused region units, each focused region unit has a focus point or a focus line, and a plurality of focus points or focus lines are arranged at intervals, and an ultrasonic transducer mechanism, and a wide focal region ultrasonic therapy device comprising the same.

2. The wide focal region ultrasonic therapy device according to claim 1, wherein the plurality of focus points or the focus lines are arranged in a rectangular array, a circular array, an elliptical array, or an annular array.

3. The wide focal region ultrasonic therapy device according to claim 2, wherein each focus point has a corresponding heat diffusion region.

4. The central temperatures of all the focus points are the same, The central temperature of each focus point is in the range of 48°C to 80°C, and the wide focal region ultrasonic therapy device according to claim 3.

5. The wide focal region ultrasonic therapy device according to claim 3, wherein the central temperatures of two adjacent focus points are set to be different.

6. The wide focal region ultrasonic therapy device according to claim 4 or 5, wherein the shape of each focused region unit is rectangular, circular, elliptical, or annular.

7. The wide focal region ultrasonic therapy device according to claim 4, wherein the shapes of the plurality of focused region units are arranged in the same manner.

8. The wide focal region ultrasonic therapy device according to claim 5, wherein the shapes of the plurality of focused region units are arranged differently.

9. The ultrasonic transducer mechanism includes a plurality of transducers provided on the bracket, the plurality of transducers are arranged at intervals, and each of the transducers is used to form the focus point, and the wide focal region ultrasonic therapy device according to claim 1.

10. The ultrasonic transducer mechanism is one transducer provided on the bracket, the transducer is provided with a plurality of radiation surfaces, the curvature regions corresponding to the plurality of radiation surfaces are different from each other, and each curvature region corresponds to one of the focus points, and the wide focal region ultrasonic therapy device according to claim 1.

11. The ultrasonic transducer mechanism includes a central transducer and at least one sub-transducer that is arranged adjacent to and located outside the central transducer, wherein the central transducer is a spherical transducer and the sub-transducer is an annular transducer. The ultrasonic therapeutic apparatus with a wide focal region according to claim 1.

12. The transducer is a tile-shaped transducer for focusing to form a focusing line. The ultrasonic therapeutic apparatus with a wide focal region according to claim 9 or 10.

13. The plurality of focusing points are arranged at equal intervals. and / or the distance between two adjacent ones of the focusing points is in the range of 0.1 mm to 2 mm. The ultrasonic therapeutic apparatus with a wide focal region according to claim 1.

14. The ultrasonic therapeutic apparatus with a wide focal region according to claim 1, further comprising an acoustic lens provided in the ultrasonic transducer mechanism for focusing the ultrasonic waves radiated by the ultrasonic transducer mechanism.

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