CN210811162U - Ophthalmic single-array-element B-ultrasonic probe and ophthalmic ultrasonic diagnostic equipment - Google Patents

Abstract

The utility model discloses an ophthalmology single-array element B ultrasonic probe, this ophthalmology single-array element B ultrasonic probe include the columniform shell, the at least one end of shell is opened, ultrasonic lens, matching layer, piezoelectric array element and the backing block have set gradually in the shell, ultrasonic lens is located the opening front end of shell is in order to be used for assembling the ultrasonic wave, ultrasonic lens is constructed into the spherical surface structure of indent. The utility model discloses ophthalmology single-array element B ultrasonic probe sets the spherical surface structure of indent to through the detection face with B ultrasonic probe to play the effect of assembling the ultrasonic wave, thereby make the supersound detection information who acquires more accurate. Furthermore, the utility model discloses still disclose an ophthalmology ultrasonic diagnosis equipment.

Description

Ophthalmic single-array-element B-ultrasonic probe and ophthalmic ultrasonic diagnostic equipment

Technical Field

The utility model relates to an ultrasonic transducer technical field, concretely relates to ophthalmology single-array element B ultrasonic probe and ophthalmology ultrasonic diagnosis equipment.

Background

The B-ultrasonic probe is an energy conversion device that converts alternating electrical signals into ultrasonic signals in an ultrasonic frequency range or converts ultrasonic signals in an external sound field into electrical signals.

In recent years, eye diseases, such as white pupil, eyeball atrophy, and eyeball perforation, have become more common in people's daily life. When diagnosing eye diseases, the B-direction probe is generally required to perform ultrasonic detection on the human eye to obtain an ultrasonic image of the human eye, so as to make a corresponding diagnosis result.

However, the detection surface of the existing B-ultrasonic probe is a planar structure, which is not favorable for receiving the ultrasonic echo, so that the acquired ultrasonic detection information is not accurate enough.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an ophthalmology single-array element B ultrasonic probe to solve the unsafe technical problem of ultrasonic detection information that current ophthalmology single-array element B ultrasonic probe acquireed.

In order to solve the technical problem, the utility model provides an ophthalmology single-element B ultrasonic probe, this ophthalmology single-element B ultrasonic probe include the columniform shell, the at least one end of shell is opened, ultrasonic lens, matching layer, piezoelectric array element and the backing block have set gradually in the shell, ultrasonic lens is located the opening front end of shell is in order to be used for assembling the ultrasonic wave, ultrasonic lens is constructed into the spherical surface structure of indent.

Preferably, the radian of the concave spherical surface of the ultrasonic lens is 45 degrees.

Preferably, the matching layer is provided in two layers.

Preferably, the ophthalmic single-element B-ultrasonic probe further comprises an electromagnetic shielding layer arranged between the piezoelectric element and the matching layer.

Preferably, the piezoelectric array element is piezoelectric ceramic, piezoelectric single crystal, piezoelectric polymer or piezoelectric composite material.

Preferably, a flexible circuit board is further arranged in the housing, the flexible circuit board is correspondingly connected with the positive electrode and the negative electrode of the piezoelectric array element through electrode leads, and the flexible circuit board is further connected with external ultrasonic equipment through a cable.

Preferably, the hand-held part of the shell is provided with an anti-skid groove or an anti-skid projection.

The utility model discloses still provide an ophthalmology ultrasonic diagnosis equipment, this ophthalmology ultrasonic diagnosis equipment include ophthalmology unit B ultrasonic probe, ophthalmology unit B ultrasonic probe includes the shell, ultrasonic lens, matching layer, piezoelectric array element and the backing block have set gradually in the shell, ultrasonic lens is located the front end of shell is in order to be used for assembling the ultrasonic wave, ultrasonic lens is constructed into the spherical surface structure of indent.

The embodiment of the utility model provides a beneficial effect lies in: the ultrasonic lens is constructed into the concave spherical structure to converge the reflected ultrasonic waves, so that the ultrasonic equipment can acquire a complete ultrasonic image, and a more accurate diagnosis result can be made according to the ultrasonic image.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the ophthalmic single-element B-mode ultrasound probe of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In order to solve the above technical problem, the utility model provides an ophthalmology single-element B ultrasonic probe, refer to fig. 1, this ophthalmology single-element B ultrasonic probe includes the shell, has set gradually ultrasonic lens 10, matching layer 20, piezoelectric array element 30 and back lining piece 40 in the shell, and ultrasonic lens 10 is located the front end of shell in order to be used for assembling the sound wave, and ultrasonic lens 10 is constructed into the spherical surface structure of indent.

In this embodiment, the ultrasonic lens 10 is used as a detection surface contacting with a human body, and is configured into an inward concave spherical surface with a certain radian, so that all ultrasonic waves reflected by human eyes can be received by the piezoelectric array element 30, and the received ultrasonic signals are converted into corresponding electric signals through the inverse piezoelectric effect of the piezoelectric array element 30 and transmitted to an external ultrasonic diagnostic device. Then, the ultrasonic diagnostic equipment processes the electric signal to obtain a corresponding ultrasonic image, and the ultrasonic image is displayed on a display screen of the ultrasonic diagnostic equipment.

The matching layer 20 is located between the ultrasonic lens 10 and the piezoelectric array element 30, and since the ultrasonic lens 10 is in contact with the human body and the piezoelectric array element 30 at the same time, the difference between the acoustic impedances of the two elements is large, and it is difficult to match the characteristic impedance of the ultrasonic lens 10 with the two elements at the same time. The ultrasound propagates through the interfaces with different impedances and reflects, which increases energy loss and affects resolution, so that the acoustic impedance matching between the B-mode ultrasound probe and the load needs to be realized through the matching layer 20. The matching layer 20 has certain requirements on its thickness and acoustic impedance, and in addition, requires less acoustic damping to reduce the loss of ultrasonic energy. In addition, the matching layer 20 should be ensured to be in good contact with the piezoelectric array element 30 and the ultrasonic lens 10 at the same time in terms of process, and the matching layer 20 is usually made of epoxy and tungsten powder.

The backing mass 40, also known as a sound absorber, is used to attenuate and absorb the ultrasonic waves radiated back from the piezoelectric array element 30, and therefore, should have an acoustic impedance close to that of the piezoelectric array element 30, so that the acoustic waves radiated back from the piezoelectric array element 30 all enter the backing mass 40 and are no longer reflected back into the piezoelectric array element 30. The backing block 40 is made of epoxy resin and tungsten powder, or ferrite powder and rubber powder.

The piezoelectric array element 30 transmits ultrasonic waves to the eyes through the positive piezoelectric effect, the ultrasonic waves are reflected by the eyes, the piezoelectric array element 30 receives the reflected ultrasonic waves, ultrasonic signals are converted into electric signals through the inverse piezoelectric effect, and the electric signals are sent to external ultrasonic diagnosis equipment. It can be understood that the ultrasonic lens 10 of the ultrasonic B probe provided by the present invention is set to be a concave spherical structure, which can receive most of the reflected ultrasonic waves compared to the existing planar structure, thereby improving the accuracy of the ultrasonic diagnosis result. It should be noted that the reflected ultrasonic wave is equivalent to a carrier carrying related information, the external ultrasonic diagnostic device can obtain corresponding information by processing the ultrasonic wave, and a doctor can know the internal condition of human eyes through the ultrasonic information to realize ultrasonic diagnosis of human eyes.

In a preferred embodiment of the present invention, the curvature of the concave spherical surface of the ultrasonic lens 10 is 45 °, it is understood that the curvature of the concave spherical surface can be designed according to actual conditions, and the foregoing limitation on the curvature of the concave spherical surface is only exemplary, but not limiting, and can be selected by those skilled in the art according to actual conditions. Certainly, the radian of the concave spherical surface of the ultrasonic lens 10 is set to 45 °, so that all reflected ultrasonic waves can be received to the greatest extent, and the accuracy of an ultrasonic diagnosis result is improved to the greatest extent.

In another preferred embodiment of the present invention, the ophthalmic single-element B-mode probe further comprises an electromagnetic shielding layer 50 disposed between the piezoelectric element 30 and the matching layer 20 to prevent electromagnetic waves from affecting the detection result of the B-mode probe. Specifically, the electromagnetic shielding layer 50 may be a gold foil, an aluminum foil, a zinc foil, or the like, including but not limited to these, and those skilled in the art can select the electromagnetic shielding layer according to the actual situation.

In another preferred embodiment of the present invention, the piezoelectric array element 30 is a piezoelectric ceramic, a piezoelectric single crystal, a piezoelectric polymer or a piezoelectric composite. The piezoelectric composite material can be 1-3 type piezoelectric composite material or 2-2 type piezoelectric composite material, such as PZT piezoelectric ceramic.

In another preferred embodiment of the present invention, a flexible circuit board is further disposed in the housing, the flexible circuit board is connected to the positive and negative electrodes of the piezoelectric array element through electrode leads, and the flexible circuit board is further connected to an external ultrasonic device through a cable. It can be understood that, the ultrasonic wave emitted by the piezoelectric array element 30 is reflected by human eyes, then is received by the piezoelectric array element 30, and converts the reflected ultrasonic wave signal into a corresponding electric signal, and then outputs the electric signal to the external ultrasonic diagnostic equipment through the flexible circuit board and the cable, so as to process and display the corresponding diagnostic result through the ultrasonic diagnostic equipment.

In the above embodiments, in order to avoid the situation that the B-ultrasonic probe slips off when used, an anti-slip groove or an anti-slip bulge may be provided on the handheld portion of the housing to increase the contact friction between the human body and the housing, thereby reducing the risk that the B-ultrasonic probe falls off from the hand of the user. Of course, the skilled person can also implement other ways for the purpose of anti-slip, such as providing anti-slip rubber on the hand-held portion, including but not limited to this.

The utility model discloses a further ophthalmic ultrasonic diagnosis equipment that provides includes the ophthalmology unit B ultrasonic probe of aforementioned record, and the concrete structure of this ophthalmology unit B ultrasonic probe refers to above-mentioned embodiment, because this ophthalmology ultrasonic diagnosis equipment has adopted all technical scheme of above-mentioned all embodiments, consequently has all technical effects that the technical scheme of above-mentioned embodiment brought at least, no longer gives unnecessary details here.

What just go up be the utility model discloses a part or preferred embodiment, no matter be characters or the drawing can not consequently restrict the utility model discloses the scope of protection, all with the utility model discloses a holistic thought down, utilize the equivalent structure transform that the contents of the description and the drawing do, or direct/indirect application all includes in other relevant technical field the utility model discloses the within range of protection.

Claims (8)

1. An ophthalmology single-element B-mode probe is characterized in that the ophthalmology single-element B-mode probe comprises a cylindrical shell, at least one end of the shell is opened, an ultrasonic lens, a matching layer, a piezoelectric array element and a backing block are sequentially arranged in the shell, the ultrasonic lens is located at the front end of an opening of the shell and used for converging ultrasonic waves, and the ultrasonic lens is constructed into a concave spherical structure.

2. An ophthalmic single-element B-mode probe according to claim 1, wherein the curvature of the concave spherical surface of the ultrasonic lens is 45 °.

3. An ophthalmic single-element B-mode probe according to claim 1, wherein the matching layer is provided in two layers.

4. An ophthalmic single-element B-mode probe according to claim 1, further comprising an electromagnetic shielding layer disposed between the piezoelectric element and the matching layer.

5. An ophthalmic single-element B-mode probe according to claim 1, wherein the piezoelectric elements are piezoelectric ceramics, piezoelectric single crystals, piezoelectric polymers or piezoelectric composites.

6. The ophthalmic single-element B-mode probe according to claim 1, wherein a flexible circuit board is further disposed in the housing, the flexible circuit board is correspondingly connected to the positive and negative electrodes of the piezoelectric array element through electrode leads, and the flexible circuit board is further connected to an external ultrasound device through a cable.

7. An ophthalmic single-element B-mode probe according to claim 1, wherein the hand-held portion of the housing is provided with anti-slip grooves or anti-slip protrusions.

8. An ophthalmic ultrasonic diagnostic apparatus comprising the ophthalmic single-element B-mode probe of any one of claims 1 to 7.

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