US5735282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible ultrasonic transducers and related systems
Assignee: Siemens Medical Solutions USA Inc
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Filing: 1996-09-18
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Granted: 1998-04-07
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Expires: 2016-09-18
Abstract
Abstract An ultrasonic imaging system includes an ultrasonic transducer having multiple ultrasonic transducer elements which are movable between at least first and second configurations which differ in curvature. The transducer elements supply receive signals to a receive beamformer, and the receive beamformer supplies output signals to a scan converter, which is controlled by a scan converter controller. The scan converter controller generates a control signal indicative of the configuration of the transducer elements, and the scan converter responds to this control signal to reduce image distortion associated with movement of the transducer elements between the first and second configurations.
Inventors
- 👤 John A. Hossack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
A; A61; A61B; A61B8/00; A61B8/12; A61B8/42; A61B8/4272; A61B8/4281; A61B8/44; A61B8/4483; A61B8/4494; G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/32; G10K11/34; G10K11/341; A61B8/4444; A61B8/445; G01; G01S; G01S15/00; G01S15/88; G01S15/89; G01S15/8906; G01S15/8909; G01S15/8915; G01S15/892
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
100 words
In an ultrasonic imaging system of the type comprising a receive beamformer, the improvement comprising: an ultrasonic transducer comprising a plurality of ultrasonic transducer elements, said transducer elements movable between at least first and second configurations which differ in curvature, said transducer elements supplying receive signals to the receive beamformer; a scan converter controller operative to generate a control signal indicative of configuration of the transducer elements; a scan converter, said scan converter responsive to the receive beamformer and to the control signal to reduce image distortion associated with movement of the transducer elements between the first and second configurations.
Claim 2
Dependent Claim
100 words
In an ultrasonic imaging system of the type comprising a receive beamformer, the improvement comprising: an ultrasonic transducer comprising a plurality of ultrasonic transducer elements, said transducer elements movable between at least first and second configurations which differ in curvature, said transducer elements supplying receive signals to the receive beamformer; a scan converter controller operative to generate a control signal indicative of configuration of the transducer elements; a scan converter, said scan converter responsive to the receive beamformer and to the control signal to reduce image distortion associated with movement of the transducer elements between the first and second configurations.
Claim 3
Dependent Claim
37 words
The invention of claim 1 wherein the transducer comprises a shape transducer operative to generate a transducer signal indicative of configuration of the transducer elements, and wherein the scan converter controller is responsive to the transducer signal.
Claim 4
Dependent Claim
45 words
The invention of claim 1 wherein the transducer comprises an actuator coupled to the transducer elements to move the transducer elements between the first and second configurations in response to an actuator command, and wherein the scan converter controller is responsive to the actuator command.
Claim 5
Dependent Claim
25 words
The invention of claim 1 wherein the scan converter controller comprises a correlator responsive to the receive signals to estimate configuration of the transducer elements.
Claim 6
Dependent Claim
81 words
In an ultrasonic imaging system of the type comprising a flexible ultrasonic transducer which generates a plurality of transducer receive signals, and a receive beamformer receive to the transducer receive signals to generate a plurality of beamformed receive signals, the improvement comprising: means for monitoring a curvature of the flexible transducer; and means for scan converting the beamformed receive signals using a scan conversion geometry selected in response to the curvature of the flexible transducer as monitored by the monitoring means.
Claim 7
Dependent Claim
81 words
In an ultrasonic imaging system of the type comprising a flexible ultrasonic transducer which generates a plurality of transducer receive signals, and a receive beamformer receive to the transducer receive signals to generate a plurality of beamformed receive signals, the improvement comprising: means for monitoring a curvature of the flexible transducer; and means for scan converting the beamformed receive signals using a scan conversion geometry selected in response to the curvature of the flexible transducer as monitored by the monitoring means.
Claim 8
Dependent Claim
35 words
The invention of claim 5 wherein the transducer comprises a shape transducer operative to generate a transducer signal indicative of curvature of the transducer, and wherein the monitoring means is responsive to the transducer signal.
Claim 9
Dependent Claim
35 words
The invention of claim 5 wherein the transducer comprises an actuator operative to alter curvature of the transducer in response to an actuator command, and wherein the monitoring means is responsive to the actuator command.
Claim 10
Dependent Claim
25 words
The invention of claim 5 wherein the monitoring means comprises a correlator responsive to the transducer receive signals to estimate the curvature of the transducer.
Claim 11
Independent Claim
72 words
A method for displaying ultrasonic images with an imaging system comprising a flexible ultrasonic transducer and a receive beamformer responsive to the transducer to generate a plurality of beamformed receive signals, said method comprising the following steps: (a) monitoring a curvature of the flexible transducer; and (b) scan converting the beamformed receive signals using a scan conversion geometry selected in response to the curvature of the flexible transducer monitored in step (a).
Claim 12
Independent Claim
72 words
A method for displaying ultrasonic images with an imaging system comprising a flexible ultrasonic transducer and a receive beamformer responsive to the transducer to generate a plurality of beamformed receive signals, said method comprising the following steps: (a) monitoring a curvature of the flexible transducer; and (b) scan converting the beamformed receive signals using a scan conversion geometry selected in response to the curvature of the flexible transducer monitored in step (a).
Claim 13
Dependent Claim
36 words
The method of claim 9 wherein the transducer comprises a shape transducer operative to generate a transducer signal indicative of curvature of the transducer, and wherein step (a) comprises the step of monitoring the transducer signal.
Claim 14
Dependent Claim
36 words
The method of claim 9 wherein the transducer comprises an actuator operative to alter curvature of the transducer in response to an actuator command, and wherein step (a) comprises the step of monitoring the actuator command.
Claim 15
Dependent Claim
27 words
The method of claim 9 wherein step (a) comprises the step of correlating transducer receive signals generated by the transducer to estimate the curvature of the transducer.
Claim 16
Dependent Claim
24 words
The method of claim 9 further comprising the step of (c) using the curvature monitored in step (a) to update a beamformer delay profile.
Claim 17
Dependent Claim
16 words
The method of claim 13 wherein the beamformer delay profile is used by the receive beamformer.
References Cited (Backward Citations)
US4468747A
Cited
US4471449A
Cited
US4734963A
Cited
US4989143A
Cited
US5148810A
Cited
US5044053A
Cited
US5363852A
Cited
US5297553A
Cited
US5423771A
Cited
WO1994013411A1
Cited
US5335663A
Cited
US5465724A
Cited
US5479930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-06 | 2001-10-06 | 2002-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-06 | 2005-10-06 | 2006-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-06 | 2009-10-06 | 2010-04-07 | $7700.00 | Window Closed / Lapsed |