Ultrasonic diagnosis apparatus

Details Ultrasonic diagnosis apparatus Ultrasonic diagnosis apparatus

2000-05-26

2001-11-13

Lateef, Marvin M. (Department: 3737)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S443000

Reexamination Certificate

active

06315726

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an ultrasonic diagnosis apparatus for providing ultrasonic diagnostic image data.
2. Description of the Prior Art
An ultrasonic diagnosis apparatus for providing ultrasonic image data having independent cases is known. Japanese patent application provisional publication No. 5-228139 and No. 6-225874 disclose the independent case type of ultrasonic diagnosis apparatus.
FIG. 5
is a block diagram of a prior art ultrasonic diagnosis apparatus disclosed in Japanese patent application provisional publication No. 5-228139. In this ultrasonic diagnosis apparatus, the whole unit is divided into the main body
1
and an operation unit
2
which are electrically connected to each other with connection cables. An operation panel
4
and a display monitor
5
are provided to the operation unit
2
to which an ultrasonic wave probe
3
is connected. The main body
1
and the operation unit
2
can be independently moved.
FIG. 6
is a block diagram of another prior art ultrasonic diagnosis apparatus disclosed in Japanese patent application provisional publication No. 6-225874. In this ultrasonic diagnosis apparatus, the whole circuitry is divided into two parts. The first case having a compact size is arranged near the person to be diagnosed. On the other hand, the second case having a large scale of circuitry necessary for high performance diagnosis is remotely arranged. Thus, digital data transmission is effected between both cases with a fiber optic cable.
SUMMARY OF THE INVENTION
The aim of the present invention is to provide a superior ultrasonic diagnosis apparatus.
In an ultrasonic diagnosis apparatus, the circuitry is divided into two parts, that is, first and second units which are connected with a cable. The first unit includes a trigger signal generation circuit for generating a trigger signal in response to a command signal, an ultrasonic wave transmitting and receiving circuit including a probe for transmitting ultrasonic waves in response to the trigger signal and receiving reflected ultrasonic waves. The cable transmits the received reflected ultrasonic waves and the trigger signal. The second unit includes a clock signal generation circuit for generating a clock signal in response to the trigger signal transmitted through the cable, and an a/d converter for a/d converting (sampling) the received reflected ultrasonic waves in response to the clock signal to output ultrasonic diagnosis data. A frequency difference detection circuit for detecting a frequency error between the clock signal and a reference frequency signal may be further provided. A compensating circuit may compensate the ultrasonic diagnostic data to output compensated ultrasonic diagnostic data.


REFERENCES:
patent: 5839442 (1998-11-01), Chiang et al.
patent: 6104673 (2000-08-01), Cole et al.
patent: 6123671 (2000-09-01), Miller
patent: 6126603 (2000-10-01), Hatfield et al.
patent: 5-228139 (1993-09-01), None
patent: 6-225874 (1994-08-01), None

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