106 results about "Acoustic lens" patented technology

Disclosed are ultrasound transducers with a small form factor, enabling applications for which traditional ultrasound transducers are unsuited. The transducers can be configured to interface with a variety of medical imaging systems. Also disclosed are example methods of manufacturing ultrasound transducers. Example versions of the ultrasound transducer can include an acoustic lens secured to the housing, a piezoelectric array, a backing layer with a phase disruptive component, an interposer board coupled to the piezoelectric array, and a cable assembly coupled to the interposer board. Moreover, disclosed are methods and systems for detecting and classifying anatomical structures using ultrasound systems. A system can generate a clip of brain vessel segmentations in an ultrasound of a patient and determine blood vessel parameters at least by inputting the clip to a machine learning model configured to output the plurality of blood vessel parameters based at least on the clip.

The invention provides an ultrasonic acupuncture device based on an ultrasonic transducer and a using method of the ultrasonic acupuncture device, and relates to the technical field of ultrasonic acupuncture. In order to solve the problems that an ultrasonic acupuncture device in the prior art is single in focusing mode and fixed in sound field and cannot effectively simulate multi-element core techniques such as lifting, inserting, twisting, rotating and oblique acupuncture in the traditional Chinese medicine acupuncture process, a target acupuncture technique type and operation time are converted into cooperative control signals for a concave fan-shaped phased array transducer and an acoustic lens; executing three operation modes: synchronously exciting all array elements and adjusting the distance between a transducer and an acoustic lens to realize axial dynamic focusing, and simulating a hand lifting and inserting method; array elements are excited according to specific phase difference time delay to generate a vortex sound field, and a twisting technique is simulated; a part of array elements are symmetrically opened, so that the acoustic beam deflects to generate an inclined focal region, and an inclined thorn technique is simulated. The simulation precision and flexibility of ultrasonic acupuncture are improved, the treatment process is completely noninvasive, and the safety and acceptability of a patient are improved.

The invention discloses a focusing type acoustic streaming heat dissipation device facing a chip. The device belongs to the crossing field of ultrasonic technology and heat dissipation technology and is composed of a piezoelectric stack, an acoustic lens, a splitter plate, a base, a supporting rod, a copper electrode and the like. According to the device, geometric parameter configuration of the splitter plate, the piezoelectric stack and the acoustic lens is optimized, and a double-piezoelectric-plate stacked structure is adopted to enhance the ultrasonic resonance effect; high-frequency alternating voltage is applied to the copper electrodes at the two ends of the piezoelectric stack, high-frequency sound waves are excited through the inverse piezoelectric effect, and after the sound waves are focused through the sound lens, a gradient sound pressure field is formed in a cavity formed by the splitter plate and the piezoelectric stack; air molecules are driven to move directionally based on the acoustic streaming effect, so that air flow at an air inlet is accelerated by sound pressure to form high-flow-rate focusing jet flow at an air outlet, and targeted forced convection heat dissipation of a chip heat source is realized. According to the device, the ultrasonic technology and the heat dissipation technology are combined, the whole device is simple in structure, free of moving parts and low in noise, and various heat dissipation requirements can be met in an array mode.

The invention relates to a device for applying shock waves to an animal or human body, comprising a shock wave source arranged in a housing. The shock wave source is focused on a point. The device comprises an acoustic lens (13) configured such that a width of a focus of the shock waves generated by the shock wave source in the focal plane is at least twice as wide along a first transverse axis extending in the focal plane as along a second transverse axis extending in the focal plane in a manner perpendicular to the first transverse axis. The invention further relates to a gel cushion having an acoustic lens contained therein for detachable arrangement on a device for generating shock waves.

The invention relates to the technical field of additive manufacturing, in particular to a photocuring printing scattering suppression method and system based on acousto-optic modulation. According to the method, in the photocuring printing process, an acousto-optic modulation device is used for generating a focused ultrasonic field in a printing material, specific refractive index distribution is formed in the material based on the photoelastic effect, and therefore a refractive index regulation and control area used for restraining and guiding scattered light propagation is constructed in a local space; therefore, the scattering effect is suppressed, and the forming precision and the structural fidelity are improved. The system comprises a photocuring device, a light source, a printing platform and an acousto-optic modulation device used for achieving the method, the acousto-optic modulation device is composed of an ultrasonic transducer and an acoustic lens, and the acousto-optic modulation device forms a focusing sound field under external excitation and works in cooperation with the light source. The method is suitable for photocuring printing of various high-scattering light-sensitive composite materials, comprises material systems containing particles, cells or components with remarkable refractive index difference, and has good material adaptability.

The invention belongs to the technical field of acoustic lenses, and discloses a high-frequency vortex sound field lens which comprises a stainless steel sheet substrate, the center area of the substrate is a solid area, and a periodic spiral line hollow structure is formed on the periphery of the solid area through laser processing; the area where the spiral line hollow structure is located allows sound waves to pass without shielding, and the solid area blocks sound wave propagation. The ultra-short pulse laser micromachining technology is adopted, the spiral line hollowed-out structure with the screw pitch, the line width and the spiral angle strictly matched with the high-frequency sound wave wavelength can be accurately etched in the surface of the stainless steel sheet, the spiral phase gradient is accurately constructed through the acoustic impedance difference of hollowed-out area conduction-solid area blocking, and the spiral phase gradient is accurately measured. The problem of phase error amplification under high frequency is effectively suppressed, the orbital angular momentum transfer efficiency is improved to 90% or above, and stable generation of a high-frequency vortex sound field is successfully realized.

The application provides an artificial sound structure lens ultrasonic physiotherapy transducer, an ultrasonic output end of the transducer (2) is fixed at a positioning groove at a bottom end of an artificial sound structure lens, and the ultrasonic output end is closely combined with the artificial sound structure lens; a ring-shaped groove is distributed at an output end of the artificial sound structure lens; epoxy resin (4) is filled in the ring-shaped groove, and the filling height of the epoxy resin is different between different regions of the filling area; the artificial sound structure lens takes the epoxy resin filled in the ring-shaped groove as a phase adjusting medium, adjusts the phase delay of ultrasonic waves by changing the filling height proportion of the phase adjusting medium in the ring-shaped groove, and changes the focal point position of the artificial sound structure lens; and the application can solve the problems of insufficient sound energy of the ultrasonic physiotherapy focal point position, the shallow ultrasonic physiotherapy focal point position, the relatively fixed focal point position of the ultrasonic physiotherapy transducer, and the heating of the contact surface after long-time use.

Flexible acoustic sensor systems using an acoustic lens are disclosed. In some embodiments, an apparatus may include: a platen having an imaging portion associated with a surface of the platen; a flexible substrate including an acoustic sensing element; and an acoustic lens disposed between the platen and the flexible substrate, the acoustic lens having a curvature configured to expand a propagation angle range of one or more acoustic signals emitted from the acoustic sensing element such that an area associated with the imaging portion is larger than an area associated with the acoustic sensing element; wherein the flexible substrate is constructed to conform to the curvature of the acoustic lens. In some implementations, the platen may include a curved platen having a curved surface configured to contact the body part of the user; and the flexible substrate may be constructed to conform to a curvature of the curved platen.

The application provides a dual-frequency focusing ultrasonic transducer, which comprises a shell and sequentially arranged acoustic lens, matching layer, piezoelectric layer and backing layer, the piezoelectric layer comprises piezoelectric wafer I and piezoelectric part II, the piezoelectric part II comprises piezoelectric wafer II and a dematching part, the piezoelectric wafer I and the piezoelectric wafer II are side by side to form a flat upper surface of the piezoelectric layer to be focused by the acoustic lens; a preparation method comprises the following steps: the piezoelectric wafer I and the piezoelectric wafer II are side by side and the top surfaces are aligned to form a circular flat surface of the piezoelectric layer; the dematching part is bonded below the piezoelectric wafer II to form the piezoelectric layer; a coaxial cable is connected to the piezoelectric layer; the piezoelectric layer connected with the coaxial cable is fixed in the shell, the backing layer is arranged on the lower surface of the piezoelectric layer, and the acoustic lens and the matching layer are sequentially arranged on the upper surface, and the transducer is obtained. The transducer of the application only needs two same piezoelectric wafers, and the dual-frequency function is realized by adding the dematching part, and the treatment effect is good.

This document discloses a needle shield for an ultrasound probe. The shield fits snugly with the ultrasound probe head and any associated structures, protecting it from accidental damage such as needlesticks. Furthermore, the shield includes a guide wedge that allows the user to stabilize the probe at an angle relative to the skin surface. This allows the needle to enter the target vessel perpendicularly without the probe obstructing the needle. Furthermore, the shield includes an acoustic lens to modify the acoustic beam and compensate for the angular position of the probe head.

A speaker apparatus comprising: a speaker comprising a diaphragm for transmitting an audio output; at least one light source; and an acoustic lens coupled to the speaker and defining a first opening to enable the first audio output to be transmitted from the first opening at a first predetermined angle, wherein the acoustic lens comprises at least one first light guide extending through the first opening, each of the at least one light source is coupled to at least one of the at least one first light guide such that light emitted by the light source is internally reflected along the respective at least one first light guide, and each of the at least one first light guide comprises a plurality of extraction elements arranged continuously along a length of the light guide, each of the plurality of extraction elements is configured to direct light emitted by a respective one of the at least one light source and internally reflected along the respective at least one first light guide towards a direction away from the speaker.

The invention provides a metamaterial energized phased array transducer and a method for three-dimensionally regulating and controlling a focus, the transducer comprises a phased array for outputting ultrasonic waves, a rotatable metamaterial acoustic lens is arranged at the ultrasonic wave output end of the phased array, the metamaterial acoustic lens comprises a plurality of dielectric layers, and the dielectric layers are arranged on the phased array. The ultrasonic focus sound pressure of the transducer is improved by focusing ultrasonic waves through the metamaterial acoustic lens, and when the ultrasonic focus of the transducer deflects, the focus position of the metamaterial acoustic lens moves along with the ultrasonic focus of the transducer through rotation of the metamaterial acoustic lens. According to the invention, the improvement of the focus sound pressure can be realized without increasing the side lobe sound pressure when the sound focus deflects.

The invention discloses an ultrasonic focusing type deep rock breaking auxiliary device and a dynamic excitation method thereof. The device comprises a fastening propelling device, a rock inherent frequency detection system and an ultrasonic focusing excitation system which are arranged outside a drilling machine in a sleeving manner. Wherein the ultrasonic focusing excitation system is used for converging ultrasonic energy into a rock mass in front of a drill bit through a plurality of focusing acoustic lenses which are annularly arranged and can independently rotate. During working, the inherent frequency of a rock mass is detected firstly, ultrasonic waves with the corresponding frequency are generated, then the refraction angle of the ultrasonic waves is adjusted by dynamically rotating the focusing acoustic lens, a focusing point is made to move forwards synchronously along with increase of the drilling depth, and continuous and accurate presplitting of deep rock in front of a drill rod is achieved. The rock strength can be effectively reduced, the rock breaking efficiency is improved, meanwhile, the hole wall completeness is protected, and drilling tool damage is reduced.

To provide an ultrasonic endoscope capable of reducing a diameter of the endoscope while ensuring visibility of the tip.SOLUTION: An ultrasonic endoscope 1 includes: a tip 34 disposed on a tip side of an insertion part; an ultrasonic transducer 50 provided at the tip 34 for emitting an ultrasonic wave toward one side of a first direction orthogonal to a longitudinal axis direction; an acoustic lens 52 provided on an external surface of the ultrasonic transducer 50; and an imaging part 300 arranged more on a proximal end side in the longitudinal axis direction than the acoustic lens 52. When, viewed in a first direction, a straight line passing through a central part of the acoustic lens 52 in the longitudinal axis direction and a second direction orthogonal to a first direction and extending in the longitudinal axis direction is represented as a reference line RL, the imaging part 300 is disposed at a position offset to one side of the second direction from the reference line RL when viewed in the first direction and an optical axis OA2 of the imaging part 300 intersects with the reference line RL.SELECTED DRAWING: Figure 3

The invention discloses a special intelligent color ultrasound probe for intravenous injection, which comprises a probe shell, a handle is fixedly mounted at one end of the probe shell, a probe body is fixedly mounted at the other end of the probe shell, a nozzle type positioning pen is mounted at one end of the probe body, and a button connected with the nozzle type positioning pen is fixedly mounted in the middle of the probe shell. The surface of the probe shell is fixedly provided with a probe system body, the probe body comprises a transducer and an acoustic lens, and one side of the transducer is connected with one side of the acoustic lens. Compared with traditional large-scale ultrasonic equipment, the designed probe is small in size, light in weight, convenient to carry about by medical staff, and capable of being used instantly at the bedside and in an infusion room; the patient does not need to be transferred to an ultrasonic examination room, so that the working efficiency and convenience are improved; the probe adopts a human engineering design and is convenient to hold and operate by a single hand; a nozzle type positioning pen is arranged, so that positioning marking is simpler, more convenient and faster, and extra marking tools are not needed.

A composition for an acoustic lens contains the following components (A) to (C):(A) a polysiloxane having a vinyl group;(B) a polysiloxane having two or more Si—H groups in a molecular chain thereof; and(C) zinc oxide surface-treated with at least one surface treatment agent of an aminosilane compound, a mercaptosilane compound, an isocyanatosilane compound, a thiocyanatosilane compound, an aluminum alkoxide compound, a zirconium alkoxide compound, or a titanium alkoxide compound, provided that the aminosilane compound does not have a Si—N—Si structure.

The invention discloses a wearable ultrasonic patch applied to intraoperative bleeding monitoring and a signal processing method, and relates to the field of wearable electronic manufacturing, the patch comprises a piezoelectric layer, a backing layer, a matching layer and an acoustic lens layer; the piezoelectric layer is used for generating mechanical vibration and receiving an ultrasonic echo signal; the mechanical vibration is simultaneously propagated in the forward direction and the backward direction in the form of ultrasonic waves through a coupling medium; the backing layer is positioned behind the piezoelectric layer and is used for absorbing ultrasonic waves which are propagated in the back direction; the matching layer is located between the piezoelectric layer and the acoustic lens layer and used for adjusting the ultrasonic waves propagating in the forward direction to obtain the adjusted ultrasonic waves; and the acoustic lens layer is in contact with human tissues, and is used for focusing the adjusted ultrasonic waves, injecting the focused ultrasonic waves into the human tissues, and injecting ultrasonic echo signals into the piezoelectric layer through the matching layer. The system can continuously monitor blood flow parameters in real time, and is suitable for clinical requirements of intraoperative bleeding monitoring.

The application discloses a fine sound beam ultrasonic probe and a design method, and relates to the technical field of nondestructive testing. The probe comprises a probe connector, a probe shell, a cable, a piezoelectric element and a combined acoustic lens. The cable is connected between the probe connector and the piezoelectric element capable of emitting and receiving ultrasonic waves, and is used for conducting high-frequency alternating electric pulses to the piezoelectric element. The combined acoustic lens is installed at the bottom of the piezoelectric element, is used for receiving the ultrasonic beam generated by the piezoelectric element, converging the ultrasonic beam and controlling the ultrasonic propagation direction, so that the ultrasonic beam forms an ultrasonic beam which is focused first and then propagates in parallel. Through implementation of the technical scheme, the technical problems of low detection precision of a conventional ultrasonic probe and low detection efficiency of an existing focused probe can be solved, the defect area or the indication length can be accurately measured, the probe is suitable for detecting internal defects of a thin-walled part and near-surface defects of a medium-thickness part, and the probe has the advantages of high-precision detection and high detection efficiency.

The present application discloses a wearable ultrasonic patch and signal processing method for intraoperative bleeding monitoring, relating to the field of wearable electronic manufacturing. The patch includes: a piezoelectric layer, a backing layer, a matching layer, and an acoustic lens layer; the piezoelectric layer is used to generate mechanical vibrations and receive ultrasonic echo signals; the mechanical vibrations are simultaneously transmitted in both forward and reverse directions in the form of ultrasonic waves through a coupling medium; the backing layer is located behind the piezoelectric layer and is used to absorb the reverse-propagating ultrasonic waves; the matching layer is located between the piezoelectric layer and the acoustic lens layer and is used to adjust the forward-propagating ultrasonic waves to obtain adjusted ultrasonic waves; the acoustic lens layer is in contact with human tissue and is used to focus the adjusted ultrasonic waves and inject them into human tissue, and inject the ultrasonic echo signals into the piezoelectric layer through the matching layer. The present application can monitor blood flow parameters in real time and continuously, and is suitable for the clinical needs of intraoperative bleeding monitoring.

The invention discloses an electromagnetic acoustic lens focusing shock wave treatment head and device, the treatment head comprises a base, an acoustic lens embedded in one end of the base, a vibrating reed and an electromagnetic disc, the vibrating reed and the electromagnetic disc are located in the base, and the vibrating reed is located between the acoustic lens and the electromagnetic disc. One side face of the vibrating reed is in curve contact with the inner surface of the acoustic lens, the other side face of the vibrating reed is attached to the surface of a coil of the electromagnetic disc, and cooling liquid is contained in a space defined by the vibrating reed, the acoustic lens and the base. The sound lens comprises an inner surface curve, an outer surface curve and a transition curve connecting the inner surface curve and the outer surface curve, and the outer surface curve of the sound lens is determined according to the contact requirement of a treatment part and the sound lens so as to be matched with the treatment part. An inner curve and a transition curve are calculated according to the Snell theorem and the wave interference principle, and the acoustic lens meeting the treatment requirement is designed in combination with algorithms such as finite element analysis.

The invention discloses an acoustic beam topological charge measurement system for orbital angular momentum, which comprises an acoustic two-dimensional phased array circuit, an acoustic two-dimensional emission array, a lower-layer spiral acoustic lens, an upper-layer spiral acoustic lens and a receiving hydrophone. Therefore, the orbital angular momentum of the incident vortex acoustic beam is reset, and the measurement of the topological charge of the incident orbital angular momentum acoustic beam is completed by combining the amplitude of the acoustic signal received by the receiving hydrophone. The method provides an innovative solution for the measurement of the topological charge of the underwater orbital angular momentum sound beam, has important technical significance and application potential, not only simplifies the topological charge measurement system of the orbital angular momentum sound beam, but also significantly improves the topological charge detection efficiency of the orbital angular momentum sound beam.

Even if gain adjustment is performed according to the signal intensity of a reflected wave, the internal state of a subject is examined with high precision. The ultrasonic inspection device is configured to have an ultrasonic probe provided with a piezoelectric element for transmitting and receiving ultrasonic waves and an acoustic lens, and is further provided with: a gain setting unit for setting a gain for amplifying reflected waves; a reference wave information acquisition unit that acquires, as reference waves of lens echoes generated in the acoustic lens, reflected waves amplified using the gain set by the gain setting unit when the output ultrasonic waves are transmitted to a test environment in which the subject is not present; an interference wave information acquisition unit that acquires, as interference wave information including information on the internal state of the subject, a reflected wave amplified using the gain set by the gain setting unit when the output ultrasonic wave is transmitted to a test environment in which the subject is present; and an information processing unit that obtains information about the internal state of the subject on the basis of the information about the interference waves and the information about the reference waves.

The present invention provides an ultrasonic probe with a novel configuration, comprising an acoustic lens made of polymethylpentene with one concave surface, and an acoustic propagation medium in the concave space resulting from the concave surface. [Solution] The ultrasonic probe 10 includes an ultrasonic propagation medium 11e which is made of a gel-like urethane having an attenuation rate of 0.5 to 4 dB / mm, an acoustic impedance of 1.45 to 1.65 MRayl, and a sound velocity slower than the sound velocity of polymerylpentene. However, the attenuation rate is measured at an ultrasonic frequency of 10 MHz. The gel-like urethane is made of a mixture of soft urethane and a plasticizer with a specific gravity of 0.9 to 1.4 g / cc.

The invention relates to an ocean vibroseis energy enhancement structure based on a Fresnel lens, and relates to the technical field of ocean exploration. Comprising a marine vibroseis body, a Fresnel acoustic lens and a second lens. The Fresnel acoustic lens and the second lens are located on the two sides of the ocean vibroseis body respectively. The Fresnel acoustic lens is used for gathering energy on the two sides of the ocean vibroseis body to one side of the ocean vibroseis body, and the second lens is used for gathering energy, adjusting the signal propagation direction, eliminating the cosine error of the Fresnel acoustic lens structure and optimizing the quality of the vibration signal of the vibroseis. According to the method, the energy level output by the seismic source can be effectively improved, the seismic source exploration and communication distance is increased, and the method has important application value and development prospect.

The flaw detection device comprises a rotary objective table, a detection cavity is in sealed butt joint with the rotary objective table, and a high-pressure gas medium with acoustic impedance higher than that of air can be injected into the detection cavity; a magnetic suspension acoustic lens dynamic focusing array module is mounted at the top of the detection chamber, a sound wave radiation surface of the magnetic suspension acoustic lens dynamic focusing array module is vertically downward and directly faces the rotary objective table, and a physical emission aperture of the magnetic suspension acoustic lens dynamic focusing array module has dynamic reconstruction capability; the magnetic suspension acoustic lens dynamic focusing array module is electrically connected with a multi-channel coherent excitation and data acquisition module, and a global optical interference measurement and position feedback module is mounted on the side wall of the magnetic suspension acoustic lens dynamic focusing array module. The invention solves the problems of low detection efficiency and low precision due to the adoption of probe mechanical point-by-point scanning in the conventional brake disc ultrasonic flaw detection.

The application discloses a Fresnel spiral acoustic lens and a method for realizing non-invasive acoustic twist ultrasonic acupuncture, and belongs to the field of ultrasonic treatment equipment. The Fresnel spiral acoustic lens is composed of a group of spiral structures with gaps, only includes oppositely arranged incident surfaces and exit surfaces, and the surface opposite to the emitting end of an ultrasonic transducer is the incident surface, which is used for ensuring that the plane acoustic wave emitted by the ultrasonic transducer is vertically incident; and the exit surface is a spiral phase modulation surface of the emitted acoustic wave. The ultrasonic acupuncture instrument made of the acoustic lens comprises the ultrasonic transducer, the Fresnel spiral acoustic lens, a focusing acoustic lens and a rotating disc. The ultrasonic acupuncture instrument further comprises a pulse emission receiver, a micro stepping motor, a rotating shaft and a real-time monitoring device. Through the phase modulation effect of the Fresnel spiral acoustic lens on the incident acoustic wave, the focusing vortex acoustic field with an orbital angular momentum is generated, non-contact non-invasive dynamic twist stimulation on the acupoint of the human body is realized, and the application has the advantages of simple structure, convenient control, accurate focusing, high safety and the like.

This application relates to an acoustic lens, an ultrasonic probe, and an ultrasonic imaging device. The acoustic lens has a front surface, and the curvature of the front surface includes a central region and side regions located on both sides of the central region. The focal length of the central region is greater than that of the side regions. This acoustic lens adjusts the focal length in sections to achieve multi-dimensional, multi-point focusing. Ultrasonic waves passing through the central region are focused at a deeper level of the target, while those passing through the side regions are focused at a shallower level. Furthermore, the beam narrowing is significant, enabling the acquisition of clear images from shallow to deep within complex structures, thus improving the quality of ultrasonic images.

The application relates to the technical field of Fresnel acoustic lens application, and provides a composite Fresnel acoustic lens, a design method and related equipment. The composite Fresnel acoustic lens comprises at least two groups of coaxial multi-focus Fresnel zone plates, the at least two groups of coaxial multi-focus Fresnel zone plates are stacked after being radially translated by a set distance, at least three non-coaxial ultrasonic focal points are generated in a three-dimensional space, and the composite Fresnel acoustic lens can be used for transcranial ultrasonic stimulation or treatment; wherein the coaxial multi-focus Fresnel zone plate comprises a multi-layer lens structure which is nested together, and the multi-layer lens structure comprises a frame area and an ultrasonic transmission medium area. The method of stacking multiple groups of coaxial multi-focus Fresnel zone plates is used to simultaneously focus multiple different-axis and different-depth ultrasonic target points, and the limitation of a limited coverage range of a traditional single-focus or coaxial double-focus is overcome.

The invention belongs to the technical field of ultrasonic transducer packaging and acoustic device manufacturing, and particularly relates to a low-stress integrated packaging technology and structure for a two-dimensional CMUT ultrathin film array, and the structure comprises a printed circuit board which is provided with the two-dimensional CMUT ultrathin film array. The surface of the printed circuit board is connected with a silicone rubber curvature acoustic lens serving as a packaging layer on one side of the emission surface of the two-dimensional CMUT ultrathin film array, the silicone rubber curvature acoustic lens covers the emission surface of the two-dimensional CMUT ultrathin film array, and the focus of the silicone rubber curvature acoustic lens is located on the two-dimensional CMUT ultrathin film array. The silicone rubber curvature acoustic lens further forms edge covering on the two-dimensional CMUT ultrathin film array on the printed circuit board along the surface periphery of the two-dimensional CMUT ultrathin film array, and sealing of the two-dimensional CMUT ultrathin film array is achieved. High-density filler, a light scattering film or a multi-layer gradient matching layer does not need to be adopted, the process is simplified, the stress is extremely low, and stable performance, safety and reliability of the CMUT array are ensured.