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Focused endoscopic ultrasound transducer and manufacturing method thereof

A technology of ultrasonic transducers and piezoelectric materials, applied in directions such as fluids that utilize vibrations, can solve problems such as poor lateral resolution and lack of microstructure detailed information, achieve frequency bandwidth widening, improve lateral resolution, and achieve lateral focusing Effect

Inactive Publication Date: 2018-08-17
XIDIAN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Poor lateral resolution will result in loss of microstructural details of vessel and platelet composition

Method used

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  • Focused endoscopic ultrasound transducer and manufacturing method thereof
  • Focused endoscopic ultrasound transducer and manufacturing method thereof

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Embodiment Construction

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0014] The present invention will be described in further detail below in conjunction with examples and specific implementation methods.

[0015] like figure 1 , 2 As shown, a focused endoscopic ultrasonic transducer includes a piezoelectric material 11, a backing layer 12, an insulating tube 13, and a metal shell 15. A lower electrode is arranged on the lower surface of the piezoelectric material 11, and the backing layer 12 and the lower The electrodes are atta...

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Abstract

The invention relates to a focused endoscopic ultrasound transducer. The focused endoscopic ultrasound transducer comprises a piezoelectric material, a backing layer, an insulating tube and a metal shell, wherein a lower electrode is arranged on the lower surface of the piezoelectric material, the backing layer is abutted and connected with the lower electrode, the piezoelectric material and the backing layer are embedded into the insulating tube, gaps among the insulating tube, the piezoelectric material and the backing layer are filled with insulating materials, the insulating tube is clamped into an assembly hole in the metal shell, a conducting wire is led from the lower surface of the backing layer, an upper electrode is arranged on the upper surface of the piezoelectric material, theupper electrode is electrically connected with the metal shell, matching layers are respectively arranged on the outer surface of the metal shell and the outer surface of the upper electrode, and theupper surface of the piezoelectric material is concave inwards. According to the technical scheme, a spherical pit is formed in the upper surface of the piezoelectric material, the thickness of the piezoelectric material is continuously changed from the edge to the center, the -6dB frequency bandwidth of the transducer is widened, the transverse focusing can be realized, and the transverse resolution of the transducer is increased.

Description

technical field [0001] The invention relates to the field of ultrasonic transducers, in particular to a focusing endoscopic ultrasonic transducer and a manufacturing method thereof. Background technique [0002] In the field of medical testing, ultrasonic transducers used to diagnose cardiovascular diseases need to meet the conditions of small size, high spatial resolution, wide bandwidth, and good sensitivity. At present, the piezoelectric array elements of commercial ultrasonic transducers are mostly planar, and the lateral resolution is low. Poor lateral resolution will result in missing microstructural details of vessel and platelet composition. Contents of the invention [0003] The object of the present invention is to provide a focused endoscopic ultrasonic transducer, so as to provide better lateral resolution and improve the accuracy of ultrasonic detection. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/06
CPCB06B1/06
Inventor 费春龙刘治勇侯尚李迪杨银堂
Owner XIDIAN UNIV
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