Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ultrasonic vibrator element and ultrasonic endoscope

A vibrator component, ultrasonic technology, applied in ultrasonic/sonic/infrasonic diagnosis, acoustic diagnosis, electrical components, etc., can solve the problems of small opening ratio and difficult sensitivity of sending and receiving, and achieve the effect of high sending and receiving sensitivity

Active Publication Date: 2018-10-12
OLYMPUS CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the element 120, because the insensitive area is large and the aperture ratio is small, it is not easy to obtain high transceiver sensitivity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ultrasonic vibrator element and ultrasonic endoscope
  • Ultrasonic vibrator element and ultrasonic endoscope
  • Ultrasonic vibrator element and ultrasonic endoscope

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0042] Such as Figure 4 As shown, in the ultrasonic transducer element 20 of the present embodiment, a unit group 10Z composed of a plurality of ultrasonic transducer units 10 is arranged on a substrate 11 . Then, when a drive signal is applied between the lower electrode terminal 12T and the upper electrode terminal 16T, the unit group 10Z transmits ultrasonic waves, and the incident ultrasonic waves are converted into electrical capacitance based on the change in capacitance between the lower electrode terminal 12T and the upper electrode terminal 16T. signal and is received.

[0043] Such as Figure 5 As shown, the unit 10 has a lower electrode 12 connected to the lower electrode terminal 12T, a lower insulating layer 13 covering the lower electrode 12, a post 14 formed with a cavity 14H, and a post 14 supported by the post 14, including an upper electrode terminal 16T. The diaphragm 18 of the upper electrode 16 is connected. Diaphragm 18 in the region immediately above...

no. 2 Embodiment approach

[0077] Figure 9 The element 20A of the illustrated second embodiment is similar to the element 20 , so the same components are given the same reference numerals and their descriptions are omitted.

[0078] In the element 20A, the lower electrode 12A is a common lower electrode for a plurality of cells 10A arranged on the entire surface of the cell group 10ZA formation region. That is, in Figure 9 In , the lower electrode 12A of each cell 10A is indicated by a dotted line, but the boundary line is a phantom line.

[0079] In the element 20A, the lower electrode 12A is arranged on the entire surface, but since the area where the upper and lower electrodes face each other is the diaphragm 18, compared with the element 20 having the lower electrode 12 formed in a pattern, the insensitive area will not be affected. Increase.

[0080] Since the element 20A does not need to pattern the lower electrode 12A, it is easy to manufacture. Furthermore, as already described, since the ...

no. 3 Embodiment approach

[0084] Figure 10 The element 20B of the third embodiment shown is similar to the element 20 and the like, so the same components are given the same reference numerals and description thereof will be omitted.

[0085] Each unit 10B of the element 20B has six columns 14 exclusively. Therefore, useless regions that do not contribute to transmission and reception are formed between the cells 10B.

[0086] Among the elements 20 and the like in which the column 14 is shared by the adjacent units 10, if one column is defective, the three units 10 sharing the column are defective. On the other hand, in the element 20B, even if the column fails, only one cell 10B becomes defective, so there is a high probability that it can be used as a product. That is, in the element 20B, not necessarily all the cells 10B are good products in many cases.

[0087] The element 20B has the effect of the element 20 and the like, and its manufacturing yield is higher than that of the element 20 and the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The ultrasonic transducer element (20) includes a substrate (11) and a unit group (10Z) composed of a plurality of units (10) each having a lower electrode arranged on the substrate (11). (12) and a diaphragm (18) including an upper electrode (16) disposed opposite the lower electrode (12) across the cavity (14H), and the cavity (14H) is formed by supporting the diaphragm (18) A plurality of columns (14), and the respective cavities (14H) of a plurality of units (10) are connected with each other.

Description

technical field [0001] The present invention relates to an ultrasonic vibrator element (hereinafter also referred to as "element") having a unit group composed of a plurality of electrostatic capacitance type ultrasonic vibrator units (hereinafter also referred to as "unit"), and to an ultrasonic vibrator element (hereinafter also referred to as "element") provided with the above-mentioned ultrasonic vibrator unit arranged at a front end thereof. Ultrasonic endoscope of the insertion part of the vibrator element. Background technique [0002] Ultrasonic diagnostics in which ultrasonic waves are irradiated into the body and the state of the body is visualized based on the echo signals for diagnosis are widespread. As one of the medical devices used in ultrasonic diagnosis, there is an ultrasonic endoscope. In the ultrasound endoscope, elements are disposed on the distal end rigid portion of the insertion portion introduced into the body. The element has the function of conv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04R19/00A61B8/12H01L29/84H10N97/00
CPCA61B8/12H01L28/60B06B1/0292A61B8/4483
Inventor 松本一哉若琳胜裕
Owner OLYMPUS CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com