CN1254544A

CN1254544A - Ultrasonic diagnosis instrument

Info

Publication number: CN1254544A
Application number: CN 98122227
Authority: CN
Inventors: 周靖人
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-25
Filing date: 1998-11-25
Publication date: 2000-05-31

Abstract

An ultrasonic diagnosis instrument features that a large-scale EPLD device contains emitting focus and control circuit, timing generator, B/M type R/W address generator, the field and line associated address generator and its complex timer, complete B/M type DSC circuit, probe controller, sequential focus circuit, emitting pulse generator and STC controller and the B-type and M-type units share a high-capacity memory chip. Its advantages are simple system design, low cost and easy debugging.

Description

Diagnostic ultrasonic equipment

The present invention relates to a kind of medical supersonic diagnostic system.

The ultrasonic system that uses all is comparatively complicated instrument at present, mainly shows on the electronic line structure, needs the several piece wiring board to realize usually.

Purpose of the present invention, it is integrated to provide a kind of height, the diagnostic ultrasonic equipment that electronic line structure has been simplified greatly.

The present invention includes emission focuses on and control section, probe segment, preposition amplifier section, whole preface and collectiong focusing part, the main amplifier part, the analog digital conversion part, the spot correlation part, relevant and the M molded lines relevant portion of Type B frame, the main image memory part, read to reach surely relative address generator part, bumper portion, the video synthesizer part, the digital-to-analogue conversion part, oscillator section, the timing sequencer part, the CPU part, CRT controller part, in above-mentioned each circuit, emission focuses on and control circuit, timing sequencer, B, M type read/write address and frame, complex time sequence in the line relative address generator and complete B/M type DSC circuit and probe control circuit, whole preface focus circuit, transmitted pulse generation circuit, the STC control circuit is finished by the extensive EPLD device of a slice, and makes Type B and M type shared with a slice mass storage.

The each several part circuit structure is as follows:

Emission focuses on and control section: mainly finish not confocal switching, and the time delay of each emission array element of corresponding adjustment, so that make ultrasonic sound beam focusing to desired position, the control signal of being sent by extensive EPLD device is switched probe work array element simultaneously, makes to form a complete ultrasonic image.

Probe segment: comprise array element control module circuit and ultrasonic transducer, mainly finish the switch operating of emission array element, the emission ultrasonic pulse receives ultrasound echo signal, and echo is transmitted back main frame.

Preposition amplifier section: finish from the amplification work of the echo-signal of probe reception.Have ten six tunnel on all four preamplifiers.Requirement has good concordance, otherwise uneven vertical bar will occur on the image.

Whole preface and collectiong focusing part: under the control of U1, finish the whole preface work of ten six tunnel echo-signals after preposition amplification, and when determining the delay of signal after each whole preface according to the emission focus with, form the reception focus.

The main amplifier part: finish the amplification work of the signal behind the collectiong focusing, main amplifier divides two-stage, and logarithmic compression is passed through in every grade of amplification of finishing 30DB again, and the back level is amplified, and detection etc. obtain the ultrasonic video signal at last and use for analog digital conversion.

Analog digital conversion part: the digitized of finishing the ultrasonic video signal.

The spot correlation part: finish the ultrasonic video signal behind the digitized consecutive points with relevant so that filter is by unordered interference and noise.

Relevant and the M molded lines relevant portion of Type B frame: finish relevant between the consecutive frame/line chart of ultrasonic video signal resembles behind the digitized, so that leach unordered interference and noise, this part also is to work under the direct control of U1.

The main image memory part: finish the storage of two width of cloth ultrasonic images and full width of cloth M type image, all relevant read-writes, address signal all derive from the output of U1.

Read-write and relative address generator part: produce the address of ultrasonic image memorizer, and the address of frame related data, all finish by U1.

Bumper portion: realize from main storage, reading the buffer memory of data to be displayed, be converted to the data flow of even output.

Video synthesizer part: finish the combination of sense data, character, synchronizing signal, blanking signal, form composite video signal complete, digital, that have standard P AL standard.

Digital-to-analogue conversion part: the TV signal of full digital is converted to general analog composite video signal, uses for general purpose monitor.

Oscillator section: the reference clock signal that produces system works.

The timing sequencer part: needed timing signal when producing system's each several part work, this part work is all finished by U1.

Flying-spot video generator part: guarantee that the video composite signal is a composite video signal.

The CPU part: the core of system's control, be responsible for man-machine interface, the co-ordination of control each several part.

CRT controller part: the read-write of control screen message.

VRAM part: video signal buffer.

Significant improvement of the present invention is: complex time sequence and complete B/M type DSC circuit and the control circuit of popping one's head in, whole preface focus circuit, transmitted pulse generation circuit, STC control circuit etc. are finished (U1) by the extensive EPLD device of a slice, and allow the shared a slice mass storage of Type B and M type, thereby simplified system design greatly, make the cost of this DSC circuit less than half of traditional design method, simultaneously also make things convenient for debugging, reduced production cost.

Accompanying drawing 1 is structured flowchart of the present invention;

Accompanying drawing 2 is the extensive EPLD device of the present invention electrical schematic diagram.

Accompanying drawing 3 is embodiment of the invention electrical schematic diagram (a, b figure).

As shown in Figure 1, emission focusing is joined with control section and probe, the echo-signal that probe obtains is sent to pre-amplification circuit and amplifies, partly form the reception focus through whole preface and collectiong focusing again, deliver to main amplifier again and carry out the signal amplification, obtaining the ultrasonic video signal delivers to analog to digital conversion circuit and carries out mould/number conversion, deliver to the spot correlation circuit again and carry out the spot correlation processing, deliver to the relevant and M molded lines relevant portion of Type B frame again and carry out the relevant treatment of consecutive frame/line chart between resembling, afterwards ultrasonic image and M type image are delivered to same main image memory storage, the address of the address of ultrasonic image memorizer and frame related data, by B, M type read/write address and frame, line relative address generator is finished generation, the main image memory canned data is therefrom read buffer memory by buffer, and be converted to the data flow of even output, be transported to video synthesizer, form complete, digital, composite video signal with standard P AL standard, TV signal with full digital becomes mimic video signal by the D/A switch circuit conversion again, use for general purpose monitor, in above-mentioned each circuit, emission focuses on and control circuit, timing sequencer, B, M type read/write address and frame, complex time sequence in the line relative address generator and complete B/M type DSC circuit and probe control circuit, whole preface focus circuit, transmitted pulse generation circuit, the STC control circuit is finished by the extensive EPLD device of a slice (U1), as shown in Figure 2, this EPLD device (U1) has a plurality of connecting pins, focus on and control section flying-spot video generator with emission respectively, agitator, main image memory, CPU, data/address bus connects.Flying-spot video generator is connected with video synthesizer again.Agitator produces reference clock signal, deliver to timing sequencer, cpu system respectively, supervisory keyboard (or mouse) is connected with the control end of CPU, the control output end of cpu system is connected with the CRT controller, the CRT controller is connected with video synthesizer by the VRAM circuit, with the read-write of control screen message.

As shown in Figure 3, be the more excellent embodiment of the present invention: extensive EPLD device (U1) is selected the EPM7128SLC84-15 cake core for use, emission focuses on and control circuit (BU8, BU3, BU4, BU9, U1, BU6, BU7, BU27, BU28, BU29) select 74HC164 for use, GAL22V10,74HC244, GAL16V8, model chips such as 74LS06 constitute, analog digital conversion (BU23) selects for use DIPI8 model chip to constitute, spot correlation part (BU18) selects for use GAL22V10 model chip to constitute, the relevant M molded lines relevant portion (BU19) that reaches of Type B frame selects for use GAL22V10 model chip to constitute, main image memory (BU15) is selected 628128 memorizeies for use, buffer (BU24) selects for use 74HC174 model chip to constitute, video synthesizer (MU25) selects for use GAL16V8 model chip to constitute, audion (U1) and resistance (VR1-VR17) are selected in digital-to-analogue conversion for use, interface connects and composes, flying-spot video generator (MU1, MU7, MU12, MU14) select 74HC4040 for use, 74HC393, model chips such as GAL16V8 constitute, agitator (DSC1, MU26) select for use DIP4 (14) type device to constitute, cpu system (MU13, MU8, MU9, MU6, MU5) select 8031 for use, 74HC373,27512, DIP24, model devices such as GAL16V8 constitute, CRT control section (MU10, MU11, MU16, MU17, MU18, MU19, MU20, MU21, MU23, MU24) select 74HC374 for use, 74HC393,74HC373, model chips such as 74HC166 constitute, VRAM circuit (MU22) selects for use 62256 model chips to constitute keyboard and mouse (MU2, MU3, MU1, MR2, MR3) select 74HC373 for use, 74HC244 and COMSIP 5 and audion side circuit constitute.

Probe circuit, pre-amplification circuit, main amplifier select for use universal circuit to constitute.

Claims

1, a kind of diagnostic ultrasonic equipment, comprise that emission focuses on and control section, probe segment, preposition amplifier section, whole preface and collectiong focusing part, main amplifier all divides, the analog digital conversion part, the spot correlation part, relevant and the M molded lines relevant portion of Type B frame, the main image memory part, read to reach surely relative address generator part, bumper portion, the video synthesizer part, the digital-to-analogue conversion part, oscillator section, the timing sequencer part, the CPU part, CRT controller part, it is characterized in that emission focuses on and control circuit, timing sequencer, B, M type read/write address and frame, complex time sequence in the line relative address generator and complete B/M type DSC circuit and probe control circuit, whole preface focus circuit, transmitted pulse generation circuit, the STC control circuit is finished by the extensive EPLD device of a slice, and makes Type B and M type shared with a slice mass storage.

2, diagnostic ultrasonic equipment according to claim 1 is characterized in that extensive EPLD device has a plurality of connecting pins, focuses on and control section with emission respectively, and flying-spot video generator, agitator, main image memory, CPU, data/address bus connect.

3, diagnostic ultrasonic equipment according to claim 1, the model that it is characterized in that extensive EPLD device is EPM7128SLC84-15.

4, diagnostic ultrasonic equipment according to claim 1, it is characterized in that emission focuses on and control circuit (BU8, BU3, BU4, BU9, U1, BU6, BU7, BU27, BU28, BU29) select 74HC164 for use, GAL22V10,74HC244, GAL16V8, model chips such as 74LS06 constitute, analog digital conversion (BU23) selects for use DIPI8 model chip to constitute, spot correlation part (BU18) selects for use GAL22V10 model chip to constitute, the relevant M molded lines relevant portion (BU19) that reaches of Type B frame selects for use GAL22V10 model chip to constitute, main image memory (BU15) is selected 628128 memorizeies for use, buffer (BU24) selects for use 74HC174 model chip to constitute, video synthesizer (MU25) selects for use GAL16V8 model chip to constitute, audion (U1) and resistance (VR1-VR17) are selected in digital-to-analogue conversion for use, interface connects and composes, flying-spot video generator (MU1, MU7, MU12, MU14) select 74HC4040 for use, 74HC393, model chips such as GAL16V8 constitute, agitator (DSC1, MU26) select for use DIP4 (14) type device to constitute, cpu system (MU13, MU8, MU9, MU6, MU5) select 8031 for use, 74HC575,27512, DIP24, model devices such as GAL16V8 constitute, CRT control section (MU10, MU11, MU16, MU17, MU18, MU19, MU20, MU21, MU23, MU24) select 74HC374 for use, 74HC393,74HC373, model chips such as 74HC166 constitute, VRAM circuit (MU22) selects for use 62256 model chips to constitute keyboard and mouse (MU2, MU3, MU1, MR2, MR3) select 74HC373 for use, 74HC244 and COMSIP 5 and audion side circuit constitute.