GB2010484A - Ultrasonic Scanner - Google Patents
Ultrasonic ScannerInfo
- Publication number
- GB2010484A GB2010484A GB7835865A GB7835865A GB2010484A GB 2010484 A GB2010484 A GB 2010484A GB 7835865 A GB7835865 A GB 7835865A GB 7835865 A GB7835865 A GB 7835865A GB 2010484 A GB2010484 A GB 2010484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- ultrasonic waves
- ultrasonic
- sector scan
- scanner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/35—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams
- G10K11/352—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams by moving the transducer
- G10K11/355—Arcuate movement
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
An ultrasonic scanner in which one or more ultrasonic transducers 32a traverse an arcuate path with respect to a reflector 54 which converges ultrasonic waves at a point a preselected distance in front of the reflector. In general, the ultrasonic waves are converged at a point outside the scanner and inside an object to be examined to produce a sector scan in the object having its center at the convergence point. In one embodiment the reflector only partially reflects the ultrasonic waves and an additional stationary transducer is provided which is positioned to produce ultrasonic waves which radiate through the reflector and coincide with one of the lines of the sector scan, thus permitting simultaneous M-mode or pulse Doppler echo information to be obtained in perfect registration with the sector scan lines. Attenuation and anti-reflection means are provided to suppress echo artifacts. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/833,244 US4143554A (en) | 1977-03-14 | 1977-09-14 | Ultrasonic scanner |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2010484A true GB2010484A (en) | 1979-06-27 |
GB2010484B GB2010484B (en) | 1982-03-24 |
Family
ID=25263854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7835865A Expired GB2010484B (en) | 1977-09-14 | 1978-09-07 | Ultrasonic scanner |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5538180A (en) |
CA (1) | CA1121500A (en) |
DE (1) | DE2839881B2 (en) |
GB (1) | GB2010484B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2142726A (en) * | 1983-06-24 | 1985-01-23 | Atomic Energy Authority Uk | Ultrasonic scanning probe |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745832A (en) * | 1980-08-30 | 1982-03-16 | Aloka Co Ltd | Ultrasonic probe for endoscope |
CA1189936A (en) * | 1981-01-15 | 1985-07-02 | Norman S. Neidell | Navigational systems using phase encoded angular coordinates |
JPS57192547A (en) * | 1981-05-21 | 1982-11-26 | Olympus Optical Co | Ultrasonic diagnostic apparatus for body cavity |
-
1978
- 1978-09-07 GB GB7835865A patent/GB2010484B/en not_active Expired
- 1978-09-13 DE DE19782839881 patent/DE2839881B2/en not_active Ceased
- 1978-09-13 CA CA000311265A patent/CA1121500A/en not_active Expired
- 1978-09-14 JP JP11322078A patent/JPS5538180A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2142726A (en) * | 1983-06-24 | 1985-01-23 | Atomic Energy Authority Uk | Ultrasonic scanning probe |
US4577506A (en) * | 1983-06-24 | 1986-03-25 | United Kingdom Atomic Energy Authority | Ultrasonic scanning probe |
Also Published As
Publication number | Publication date |
---|---|
JPS5538180A (en) | 1980-03-17 |
GB2010484B (en) | 1982-03-24 |
DE2839881A1 (en) | 1979-03-29 |
DE2839881B2 (en) | 1980-06-12 |
CA1121500A (en) | 1982-04-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |