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公开(公告)号：US10134973B2
公开(公告)日：2018-11-20
申请号：US14651499
申请日：2015-03-02
Applicant: EDAN INSTRUMENTS, INC.
Inventor： Wenjuan Wang , Dan Zhou , Bo Ouyang , Jianhua Mo
Abstract: The present application relates to the technical field of transducer, it provides an ultrasonic transducer and the manufacture method therefore. The ultrasonic transducer comprises: a piezoelectric layer for radiating sound signal forward or backward, each side thereof being plated with an electrode; a matching layer arranged in the front of the piezoelectric layer and suitable for sending the forward sound signal; a tuning layer arranged on the back of the piezoelectric layer, wherein the piezoelectric layer is disposed between the tuning layer and the matching layer; a backing layer for absorbing the backward sound signal from the piezoelectric layer, wherein the backing layer is arranged against the piezoelectric layer on the tuning layer.
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公开(公告)号：US11974879B2
公开(公告)日：2024-05-07
申请号：US16541645
申请日：2019-08-15
Applicant: EDAN INSTRUMENTS, INC.
Inventor： Hua Luo , Jianhua Mo , Bo Ouyang , Dan Zhou
IPC: A61B8/00
CPC classification number: A61B8/4461
Abstract: Disclosed is a three dimensional mechanical ultrasound probe, which includes a transducer, a driving motor and a transmission mechanism configured to drive the transducer to reciprocatingly oscillate within a predetermined angle. The transmission mechanism includes a transducer base fixed and connected with the transducer, a face gear arranged on the transducer base, and a cylindrical gear meshed with the face gear. A rotating shaft of the face gear is positioned on the transducer base, and the face gear drives the transducer base to reciprocatingly oscillate. A transmission shaft is arranged on the axis of the cylindrical gear, and the transmission shaft is connected with the driving motor. The three dimensional mechanical ultrasound probe provided by the present application aims at simplifying the internal structure of the three dimensional mechanical ultrasound probe, reducing the internal installation complexity and improving motion stability.
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公开(公告)号：US11642105B2
公开(公告)日：2023-05-09
申请号：US17120235
申请日：2020-12-13
Applicant: EDAN INSTRUMENTS, INC.
Inventor： Dan Zhou , Lulu Chen , Hua Luo , Jianhua Liu , Bo Ouyang , Jianhua Mo
CPC classification number: A61B8/4494 , A61B8/4444 , A61B8/546 , B06B1/0607
Abstract: An ultrasonic transducer (200) includes: a piezoelectric vibrator assembly (10), an acoustic matching layer (20), a heat sink (30), and an acoustic absorption layer (40). The heat sink (30) comprises a body (31), and a head portion (32) and a tail portion (33). The body (31) has a central axis extending in a direction from the head portion (32) to the tail portion (33). A surface of the tail portion (33) of the heat sink (30) disposed away from the head portion (32) is a first surface (331). The first surface (331) is an oblique surface or a tapered surface. The angle between the first surface (331) and the central axis is an acute angle. The acoustic absorption layer (40) at least covers the first surface (331).
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公开(公告)号：US20210093296A1
公开(公告)日：2021-04-01
申请号：US17120235
申请日：2020-12-13
Applicant: Edan Instruments, Inc.
Inventor： Dan Zhou , Lulu Chen , Hua Luo , Jianhua Liu , Bo Ouyang , Jianhua Mo
Abstract: An ultrasonic transducer (200) includes: a piezoelectric vibrator assembly (10), an acoustic matching layer (20), a heat sink (30), and an acoustic absorption layer (40). The heat sink (30) comprises a body (31), and a head portion (32) and a tail portion (33). The body (31) has a central axis extending in a direction from the head portion (32) to the tail portion (33). A surface of the tail portion (33) of the heat sink (30) disposed away from the head portion (32) is a first surface (331). The first surface (331) is an oblique surface or a tapered surface. The angle between the first surface (331) and the central axis is an acute angle. The acoustic absorption layer (40) at least covers the first surface (331).
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