Multifunctional ultrasonic transducer

Abstract

The utility model provides a multifunctional ultrasonic transducer, and particularly relates to the technical field of medical ultrasonic instruments, in the multifunctional ultrasonic transducer, one first transduction unit is arranged, a plurality of second transduction units are arranged, and the plurality of second transduction units form a second transduction unit array; the adjacent second transduction units of the second transduction unit arrays are separated through filling materials, the two sides of the first transduction unit are each provided with one second transduction unit array, and the first transduction unit and the second transduction unit arrays are separated through the filling materials. The ultrasonic transmission surface of the first transduction unit and the ultrasonic transmission surface of the second transduction unit are positioned on the same plane, so that the first transduction unit and the second transduction unit can complete treatment and diagnosis respectively, and meanwhile, the first transduction unit and the second transduction unit do not influence each other, so that the performance is not reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical ultrasonic instruments, in particular to a multifunctional ultrasonic transducer. Background Art

[0002] Arrayed ultrasound transducers are used in various fields of medical treatment and diagnosis. Ultrasound can enhance the effects of thrombolytic drugs such as tissue plasminogen activator and urokinase. The main methods of dual-frequency ultrasound reported so far include: 1. Using a single transducer to enhance the thermal and mechanical effects of ultrasound by exciting the transducer at two frequencies to treat patients; 2. Using a low-frequency transducer for treatment and a high-frequency transducer for imaging detection.

[0003] Application number US8182428B2 discloses a method for manufacturing a dual-frequency array ultrasonic transducer. This patent uses two transducers to perform detection and treatment respectively. This patent uses a method of stacking a high-frequency transducer between a low-frequency transducer. This will cause the high-frequency transducer to block the propagation of sound waves emitted by the low-frequency transducer, thereby reducing the performance of the low-frequency transducer. At the same time, the manufacturing difficulty will increase and the yield rate will decrease. Using two frequencies to excite the transducer to complete thermal and mechanical effects to treat patients cannot simultaneously diagnose and treat patients.

[0004] In view of this, the present invention proposes a multifunctional ultrasonic transducer that can realize treatment and diagnosis functions without interfering with each other. Utility Model Content

[0005] In order to solve the problem of mutual interference between ultrasonic transducers during treatment and diagnosis, the utility model proposes a multifunctional ultrasonic transducer.

[0006] The utility model is achieved through the following technical solutions:

[0007] The present utility model proposes a multifunctional ultrasonic transducer including a piezoelectric layer, the piezoelectric layer including a piezoelectric array element and a filling material, the piezoelectric array element including a first transducer unit and a second transducer unit, one first transducer unit is provided, and multiple second transducer units are provided, multiple second transducer units form a second transducer unit array, adjacent second transducer units in the second transducer unit array are separated by the filling material, one second transducer unit array is provided on each side of the first transducer unit, the first transducer unit and the second transducer unit array are separated by the filling material, and the ultrasonic propagation surface of the first transducer unit and the ultrasonic propagation surface of the second transducer unit are on the same plane.

[0008] Furthermore, it further includes a backing layer, which is arranged on one side of the piezoelectric layer and is bonded to one side of the piezoelectric layer.

[0009] Furthermore, a matching layer is included, and the matching layer is arranged on the other side of the piezoelectric layer, and the matching layer is bonded to the other side of the piezoelectric layer.

[0010] Beneficial effects of the utility model:

[0011] The multifunctional ultrasonic transducer proposed by the present invention is arranged in the middle by a first transducer unit, and a plurality of second transducer units constitute the second transducer units and are arranged in a row on both sides of the first transducer unit, and the ultrasonic propagation surface of the first transducer unit and the ultrasonic propagation surface of the second transducer unit are arranged on the same surface. The first transducer unit and the second transducer unit can respectively complete treatment and diagnosis while the first transducer unit and the second transducer unit will not affect each other and cause performance degradation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall structural diagram of the multifunctional ultrasonic transducer of the present utility model;

[0013] Figure 2 This is an arrangement diagram of the first transducer unit and the second transducer unit of the multifunctional ultrasonic transducer of the present utility model;

[0014] In the figure: backing layer 1, piezoelectric layer 2, first transducer unit 21, filling material 22, second transducer unit 23, matching layer 3;

[0015] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0016] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0017] Please refer to Figure 1-Figure 2 The present invention proposes a multifunctional ultrasonic transducer including a piezoelectric layer 2, the piezoelectric layer 2 including a piezoelectric array element and a filling material 22, the piezoelectric array element including a first transducer unit 21 and a second transducer unit 23, the first transducer unit 21 is provided with one, the second transducer unit 23 is provided with multiple, the multiple second transducer units 23 form a second transducer unit 23 array, adjacent second transducer units 23 of the second transducer unit 23 array are separated by the filling material 22, a second transducer unit 23 array is provided on each side of the first transducer unit 21, the first transducer unit 21 and the second transducer unit 23 array are separated by the filling material 22, and the ultrasonic propagation surface of the first transducer unit 21 and the ultrasonic propagation surface of the second transducer unit 23 are on the same plane.

[0018] Furthermore, it also includes a backing layer 1 , which is arranged on one side of the piezoelectric layer 2 , and the backing layer 1 is bonded to one side of the piezoelectric layer 2 .

[0019] Furthermore, a matching layer 3 is included. The matching layer 3 is arranged on the other side of the piezoelectric layer 2 , and the matching layer 3 is bonded to the other side of the piezoelectric layer 2 .

[0020] In a specific embodiment, the first transducer unit 21, the second transducer unit 23 array, the backing layer 1 and the matching layer 3 constitute an ultrasonic transducer. The second transducer unit 23 array is arranged on both sides of the first transducer unit 21. The second transducer unit 23 arrays on both sides can cooperate with the backing layer 1 and the matching layer 3 to obtain image information of the corresponding tissue through ultrasonic imaging, and the first voltage array element in the middle can cooperate with the backing layer 1 and the matching layer 3 to achieve ultrasonic treatment. The first transducer unit 21 and the second transducer unit 23 array are separated by a filling material 22. Finally, they form an integrated transducer with the matching layer 3 and the backing layer 1 and can perform multiple functions of treatment and imaging respectively.

[0021] In one embodiment, the prior art (for example, a method for manufacturing a dual-frequency array ultrasonic transducer disclosed in US8182428B2) usually achieves multi-functions by stacking two arrays front and back. However, since the transducer located in the front is in the ultrasonic propagation path of the transducer located in the rear, this method will reduce the ultrasonic intensity generated by the rear transducer, affecting the performance of the rear transducer. In the present application, the ultrasonic propagation surface of the first transducer unit 21 and the ultrasonic propagation surface of the second transducer unit 23 are on the same plane, that is, the first transducer unit 21 and the second transducer unit 23 are on the same plane and are placed left and right, the first transducer unit 21 is set in the middle, and multiple second transducer units 23 are set on both sides. The second transducer unit 23 can use electronic focusing to place the imaging focus in front of the first transducer unit 21, and the first transducer unit 21 and the second transducer unit 23 will not affect each other.

[0022] In one embodiment, the frequencies of the first transducer unit 21 and the second transducer unit 23 can be selected according to actual conditions, and two second transducer unit 23 arrays and one first transducer unit 21 array can be changed to two or more frequencies to achieve different functions.

[0023] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A multifunctional ultrasonic transducer, characterized in that: It includes a piezoelectric layer, which includes piezoelectric array elements and filling materials. The piezoelectric array elements include a first transducer unit and a second transducer unit. One first transducer unit is provided, and multiple second transducers are provided. Multiple second transducers form a second transducer unit array. Adjacent second transducer units in the second transducer unit array are separated by the filling material. One second transducer unit array is provided on each side of the first transducer unit. The first transducer unit and the second transducer unit array are separated by the filling material, and the ultrasonic propagation surface of the first transducer unit and the ultrasonic propagation surface of the second transducer unit are on the same plane.

2. The multifunctional ultrasonic transducer according to claim 1, characterized in that: It also includes a backing layer, which is arranged on one side of the piezoelectric layer and is bonded to one side of the piezoelectric layer.

3. The multifunctional ultrasonic transducer according to claim 2, characterized in that: It also includes a matching layer, which is arranged on the other side of the piezoelectric layer and is bonded to the other side of the piezoelectric layer.

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