Ultrasonic probe

Patent metadata

Field	Value
Publication number	US-11538982-B2
Application number	US-201916361885-A
Country	US
Kind code	B2
Filing date	Mar 22, 2019
Priority date	Aug 22, 2018
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

A backing includes a plurality of backing plates that are laminated. Each backing plate includes a lead row and a backing material. Each lead includes a lead wire and an insulating coating. The insulating coating is integrated with the backing material, and an adhesive layer between them does not exist. Short-circuit between the leads may be prevented or reduced by the insulating coating. The backing plate is manufactured by a screen printing method.

First claim

What is claimed is:

1. An ultrasonic probe comprising:
a vibration element array consisting of a plurality of vibration elements arranged two-dimensionally; and
a backing provided on a rear surface side of the vibration element array and consisting of a plurality of backing plates that are laminated, wherein
each of the backing plates includes:
a lead row consisting of a plurality of leads that are electrically connected to the vibration element array; and
a plate main body formed of a backing material, the plate main body including a plurality of grooves that are directly coupled to the plurality of leads without an adhesive layer while accommodating the plurality of leads, and
each of the leads includes a lead wire and an insulating coating wrapping the lead wire, wherein
the backing includes an adhesive that bonds the plurality of backing plates to one another and has a lower viscosity than the backing plates, and
each insulating coating of the leads consists of a material that is different from the adhesive.

2. The ultrasonic probe of claim 1 , wherein
the insulating coating of the leads includes an exposed surface exposed from each of the grooves, and
each of the backing plates includes:
a first plane including a plurality of exposed surfaces of the lead row; and
a second plane that is in parallel with the first plane.

3. The ultrasonic probe of claim 1 , wherein the insulating coating of the leads has a thickness in a range of 10 μm to 30 μm.

Assignees

• Hitachi Ltd
• Fujifilm Healthcare Corp

Inventors

• Katsura Hidetsugu
• Tahara Yoshihiro
• Kobayashi Kazuhiro

Classifications

• Y10T29/49121

  Beam lead frame or beam lead device · CPC title

• G01N29/226 Primary

  Handheld or portable devices · CPC title

• Y10T29/49005

  Acoustic transducer · CPC title

• A61B8/4483

  characterised by features of the ultrasound transducer · CPC title

• G01N2291/106

  one or more transducer arrays · CPC title