Patent US5643604A successfully refreshed from Google Patents.
EP0190948A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ultrasonic probe
Assignee: Panasonic Holdings Corp
•
Filing: 1986-02-10
•
Granted: —
•
Expires: 2006-02-10
Abstract
Abstract An ultrasonic probe for an ultrasonic medical diagnostic apparatus which is composed of a plurality of piezoelectric vibrators (1) with electrodes (8, 9) attached onto both surfaces thereof and one or two acoustic matching layers (3, 6) which are provided on the surface of one electrode (8) of the piezoelectric vibrator. One of the acoustic matching layers is made of thermosetting resin such as epoxy resin mixed with carbonyl group material. A backing load member (2) which is made of epoxy resin or rubber material mixed with microspheres and metal or insulator powder is provided on the surface of the other electrode (9) of the piezoelectric vibrator. A filler material (5) which is made of rubber material or thermosetting resin is filled between each of said piezoelectric vibrators.
Inventors
- 👤 Koetsu Saito
- 👤 Masami Kawabuchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:12
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0607; B06B1/0622
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
154 words
An ultrasonic probe comprising: a plurality of piezoelectric vibrators (1) arranged in sequence. each of which has electrodes (8,9) attached onto both surfaces thereof. a backing load member (2) provided on the surface of one electrode (9) of said piezoelectric vibrator, a first acoustic matching layer (3) provided on the surface of other electrode (S) of said piezoelectric vibrator. a second acoustic matching layer (6) provided on said first matching layer (3), and a filler material (5) filled between each of said piezoelectric vibrator, said backing load member (2) being essentially composed of a material selected from a group of epoxy resin and rubber material which are mixed with microspheres and powders of metal or insulator, said first acoustic matching layer (3) being essentially composed of epoxy resin mixed with carbonyl group material, and said filler material (5) being essentially composed of a material selected from a group of rubber material and thermosetting resin.
Claim 2
Dependent Claim
154 words
An ultrasonic probe comprising: a plurality of piezoelectric vibrators (1) arranged in sequence. each of which has electrodes (8,9) attached onto both surfaces thereof. a backing load member (2) provided on the surface of one electrode (9) of said piezoelectric vibrator, a first acoustic matching layer (3) provided on the surface of other electrode (S) of said piezoelectric vibrator. a second acoustic matching layer (6) provided on said first matching layer (3), and a filler material (5) filled between each of said piezoelectric vibrator, said backing load member (2) being essentially composed of a material selected from a group of epoxy resin and rubber material which are mixed with microspheres and powders of metal or insulator, said first acoustic matching layer (3) being essentially composed of epoxy resin mixed with carbonyl group material, and said filler material (5) being essentially composed of a material selected from a group of rubber material and thermosetting resin.
Claim 3
Dependent Claim
44 words
An ultrasonic probe as claimed in claim 1, wherein said first acoustic matching layer (3) is divided into a plurality of components in correspondence to the plurality of piezoelectric vibrators, and said filler material (5) is filled between said divided first acoustic matching layer.
Claim 4
Dependent Claim
26 words
An ultrasonic probe as claimed in claim 1 or 2, wherein said backing load member (2) is epoxy resin mixed with tungsten powders and plastic microspheres.
Claim 5
Dependent Claim
24 words
An ultrasonic probe as claimed in claim 1, 2 or 3, wherein said filler material (5) is epoxy resin mixed with silicon carbide powders.
Claim 6
Dependent Claim
20 words
An ultrasonic probe as claimed in any one of the pieceding claims, wherein said carbonyl group material is carbonyl iron.
Claim 7
Dependent Claim
25 words
An ultrasonic probe as claimed in any one of the preceding claims, wherein said plurality of piezoelectric vibrators (1) are arranged in straight line array.
Claim 8
Dependent Claim
26 words
An ultrasonic probe as claimed in any one of claims 1 to 5, wherein said plurality of piezoelectric vibrators (1) are arranged in arc line array.
Claim 9
Dependent Claim
23 words
An ultrasonic probe as claimed in any one of claims 1 to 5, wherein said plurality of piezoelectric vibrators are arranged in matrix.
Claim 10
Dependent Claim
76 words
An ultrasonic probe comprising: a piezoelectric vibrator (1) with electrodes (8,9) attached onto both surfaces thereof, a backing load member (2) provided on the surface of one electrode (9) of said piezoelectric vibrator, and one or more layers(3,6) of acoustic matching material provided on the surface of other electrode (8) of said piezoelectric vibrator (1), wherein said backing load member (2) is essentially composed of rubber material mixed with microspheres and powders of metal or insulator.
Claim 11
Dependent Claim
76 words
An ultrasonic probe comprising: a piezoelectric vibrator (1) with electrodes (8,9) attached onto both surfaces thereof, a backing load member (2) provided on the surface of one electrode (9) of said piezoelectric vibrator, and one or more layers(3,6) of acoustic matching material provided on the surface of other electrode (8) of said piezoelectric vibrator (1), wherein said backing load member (2) is essentially composed of rubber material mixed with microspheres and powders of metal or insulator.
Claim 12
Dependent Claim
18 words
An ultrasonic probe as claimed in any one of the preceding claims, wherein said microspheres are plastics microspheres.
Claim 13
Dependent Claim
45 words
An ultrasonic probe as claimed in any one of the preceding claims, wherein said powder is one or more selected from a group of tungsten powder, molybdenum powder, lead powder, nickel powder, iron powder, zinc powder, ferrite powder, tungsten carbide powder and silicon carbide powder.
Claim 14
Dependent Claim
112 words
An ultrasonic probe comprising: a piezoelectric vibrator (1) with electrodes (8,9) attached onto both surfaces thereof, a backing load member (2) provided on the surface of one electrode (9) of said piezoelectric vibrator. and one or more layers (3,b) of acoustic matching material provided on the surface of other electrode (8) of said piezoelectric vibrator, wherein at least said piezoelectric vibrator is divided into a plurality of components and a filler material (5) being filled between said divided piezoelectric vibrator, said filler material being essentially composed of a material selected from a group of rubber material and thermosetting resin each of which is mixed with microspheres and powders of metal or insulator.
Claim 15
Dependent Claim
112 words
An ultrasonic probe comprising: a piezoelectric vibrator (1) with electrodes (8,9) attached onto both surfaces thereof, a backing load member (2) provided on the surface of one electrode (9) of said piezoelectric vibrator. and one or more layers (3,b) of acoustic matching material provided on the surface of other electrode (8) of said piezoelectric vibrator, wherein at least said piezoelectric vibrator is divided into a plurality of components and a filler material (5) being filled between said divided piezoelectric vibrator, said filler material being essentially composed of a material selected from a group of rubber material and thermosetting resin each of which is mixed with microspheres and powders of metal or insulator.
Claim 16
Dependent Claim
32 words
An ultrasonic probe as claimed in any one of the preceding claims, wherein said rubber material is one selected from a group of silicone rubber, urethane rubber butyl rubber and chloroprene rubber.
Claim 17
Dependent Claim
28 words
An ultrasonic probe as claimed in any one of the preceding claims, wherein said thermosetting resin is one selected from a group of epoxy resin and urethan resin.
Claim 18
Dependent Claim
34 words
An ultrasonic probe as claimed in claim 12, wherein said powder is one or more selected from a group of tungsten powder, tuntalum powder, ferrite powder, zinc powder, silicon carbide powder, and tungsten powder.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.