US4373533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic diagnosing apparatus
Assignee: Toshiba Corp
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Filing: 1981-02-24
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Granted: 1983-02-15
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Expires: 2001-02-24
Abstract
Abstract An ultrasonic diagnosing apparatus comprising, a first transducer array having a plurality of ultrasonic transducers arranged in a given direction for transmitting an ultrasonic beam into a tissue of a human body and for receiving the ultrasonic echo reflected from the tissue, a second transducer array having a plurality of ultrasonic transducers, for transmitting an ultrasonic beam into the tissue and receiving the ultrasonic echo reflected from the tissue, arrayed in a direction orthogonal to the direction of an array of the transducers in said first transducer array and arranged at an acute angle with respect to said first transducer array in a direction along which the ultrasonic beam of said first transducer array is transmitted and the ultrasonic echo is received, a first signal processing circuit for processing the ultrasonic echo received by said first transducer array to produce an output signal corresponding to tomogram information of the tissue, a second signal processing circuit for processing the ultrasonic echo received by said second transducer array to produce an output signal corresponding to a velocity of a blood flow in the tissue, first display means for displaying a tomogram based on the output signal of said first signal processing circuit; and second display means for displaying blood flow information based on the output signal of said second signal processing circuit.
Inventors
- 👤 Kazuhiro Iinuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:23
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/88; G01S15/89; G01S15/8906; G01S15/8979; A; A61; A61B; A61B8/00; A61B8/06; A61B8/13; G01S15/02; G01S15/50; G01S15/58; G01S15/582; G01S15/8909; G01S15/8915; G01S15/8918; G01S7/00; G01S7/52; G01S7/52017; G01S7/52053; G01S7/52057; G01S7/5206; G01S7/52074
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
220 words
An ultrasonic diagnosing apparatus comprising: a first transducer array having a plurality of ultrasonic transducers arranged in a given direction for transmitting an ultrasonic beam into a tissue of a human body and for receiving the ultrasonic echo reflected from the tissue; a second transducer array having a plurality of ultrasonic transducers, for transmitting an ultrasonic beam into the tissue and receiving the ultrasonic echo reflected from the tissue, arrayed in a direction orthogonal to the direction of an array of the transducers in said first transducer array and arranged at an acute angle with respect to said first transducer array in a direction along which the ultrasonic beam of said first transducer array is transmitted and the ultrasonic echo is received; a first signal processing circuit for processing the ultrasonic echo received by said first transducer array to produce an output signal corresponding to tomogram information of the tissue; a second signal processing circuit for processing the ultrasonic echo received by said second transducer array to produce an output signal corresponding to a velocity of a blood flow in the tissue; first display means for displaying a tomogram based on the output signal of said first signal processing circuit; and second display means for displaying blood flow information based on the output signal of said second signal processing circuit.
Claim 2
Dependent Claim
220 words
An ultrasonic diagnosing apparatus comprising: a first transducer array having a plurality of ultrasonic transducers arranged in a given direction for transmitting an ultrasonic beam into a tissue of a human body and for receiving the ultrasonic echo reflected from the tissue; a second transducer array having a plurality of ultrasonic transducers, for transmitting an ultrasonic beam into the tissue and receiving the ultrasonic echo reflected from the tissue, arrayed in a direction orthogonal to the direction of an array of the transducers in said first transducer array and arranged at an acute angle with respect to said first transducer array in a direction along which the ultrasonic beam of said first transducer array is transmitted and the ultrasonic echo is received; a first signal processing circuit for processing the ultrasonic echo received by said first transducer array to produce an output signal corresponding to tomogram information of the tissue; a second signal processing circuit for processing the ultrasonic echo received by said second transducer array to produce an output signal corresponding to a velocity of a blood flow in the tissue; first display means for displaying a tomogram based on the output signal of said first signal processing circuit; and second display means for displaying blood flow information based on the output signal of said second signal processing circuit.
Claim 3
Dependent Claim
69 words
An ultrasonic diagnosing apparatus according to claim 1, where said first signal processing circuit includes: means for amplifying a signal corresponding to the ultrasonic echo received by said first transducer array; means for amplitude detecting the output signal of said amplifying means; video amplifying means for amplifying the output signal of said amplitude detecting means; and scanning converting means for storing the output signal of said video amplifying means.
Claim 4
Dependent Claim
93 words
An ultrasonic diagnosing apparatus according to claim 1, wherein said second signal processing circuit includes: means for amplifying a signal corresponding the ultrasonic echo received by said second transducer array; means for phase detecting the output signal of said amplifying means; a detecting circuit for detecting a velocity of a blood flow by receiving the output signal of said phase detecting means; and a circuit for detecting a flow rate of the blood flow by receiving the output signal representative of the velocity of blood flow of said blood flow velocity detecting circuit.
Claim 5
Dependent Claim
102 words
An ultrasonic diagnosing apparatus according to claim 3, wherein said blood flow velocity detecting circuit includes: analog-to-digital (A/D) converting means for effecting an A/D conversion of the output signal of said phase detecting means; a random access memory stored with data to be compased with the output signal of said A/D converting means; means for comparing the output signal of said A/D converting means with the data stored in said random access memory; a circuit for integrating the output signal of said comparing means; and digital-to-digital (D/A) converting means for effecting a D/A conversion of the output signal of said integrating circuit.
Claim 6
Dependent Claim
62 words
An ultrasonic diagnosing apparatus according to claim 4, wherein said integrating circuit includes: an adder for adding the output signal of said comparing means to the output signal of a coefficient multiplier; a random access memory for storing the output signal of said adder; and said coefficient multiplier for multiplying the output signal of said random access memory by a predetermined coefficient.
Claim 7
Dependent Claim
59 words
An ultrasonic diagnosing apparatus according to claim 3, wherein said blood flow rate detecting circuit includes: an integrating circuit for integrating the output signal of said blood flow velocity detecting circuit; an adder for adding the output signals of said integrating circuit; and a coefficient multiplying circuit for multiplying the output signal of said adder by a predetermined coefficient.
References Cited (Backward Citations)
US3939707A
Cited
US3888238A
Cited
US4062237A
Cited
US4141347A
Cited
US4103679A
Cited
US4217909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |