CN2188926Y - Instrument for tumour diagnosis - Google Patents
Instrument for tumour diagnosis Download PDFInfo
- Publication number
- CN2188926Y CN2188926Y CN 94211144 CN94211144U CN2188926Y CN 2188926 Y CN2188926 Y CN 2188926Y CN 94211144 CN94211144 CN 94211144 CN 94211144 U CN94211144 U CN 94211144U CN 2188926 Y CN2188926 Y CN 2188926Y
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- China
- Prior art keywords
- signal
- mentioned
- probe
- instrument
- circuit
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- Expired - Fee Related
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Abstract
The utility model a portable novel instrument for tumor diagnosis, which is composed of a probe, an electronic switch, an A/D converter, an SCM system, a display, etc. The instrument also comprises a: led displayer, a micro printer, a foot-driven type control box, a qualitative preprocessor and a positioning AC impedance measuring part, wherein, the qualitative preprocessor has four passages; each passage has an independent electronic adjustment switch circuit; the positioning AC impedance measuring part comprises an oscillating circuit, an amplitude limiter, a special wave forming circuit, a constant-current generator, a detection circuit and a positioning preprocessor. The instrument can gather qualitative measurement and positioning measurement into one body. The utility model has the characteristics of high precision and simple operation.
Description
This utility model relates to the neoplasm diagnosis instrument that a kind of medical diagnosis is used, particularly a kind of instrument that is used for accurately measuring human tumor character and position.
At present, the computer neoplasm diagnosis instrument roughly has three types: with the be for data processing qualitative instrument of device of single-chip microcomputer 8039; Directly amplify the straight explicit analyzer of display parameters; And deal with qualitative instrument of device etc. with 286 microcomputers.Above-mentioned computer neoplasm diagnosis instrument has no wound, painless, the advantage that has no side effect, but the ubiquity measuring accuracy is not high, can only be qualitative can not location survey, two people of action need are with first-class shortcoming.Specifically: the qualitative instrument that, deals with device with single-chip microcomputer 8039, because the collection of signal and the processing of giving of signal are lacked the measure that improves degree of accuracy and stability, the precision of measuring is not high, the processing capacity of parameter is incomplete, testing result only can be printed and apparent method 4 bit value, need the above ability of two people operating instrument, can not make location survey; Two, it is identical directly amplifying the method for method that the constant-current source that shows analyzer produces and above-mentioned qualitative instrument constant-current source generation actual, the precision of this constant-current source is not high, though use high accuracy destiny amplifier to amplify, but because the constant current shakiness causes signal fluctuation, the amplifier contrast is helpless, adds direct conversion and shows, exists the low problem of conversion accuracy and resolution, therefore, straight explicit analyzer certainty of measurement is not high; Three, dealing with device with 286 microcomputers, though the function of processing parameter is more complete, can store case, is that to exist certainty of measurement not high equally, needs many people's operations, and bulky, costs an arm and a leg.
The purpose of this utility model is to provide a kind of observation measurements and location survey of can integrating, high accuracy, novel tumor diagnostic apparatus simple to operate.
This utility model is big by detection probe, electronic selection switch, A/D conversion, Single Chip Microcomputer (SCM) system, display, regulated power supply and transformator etc. are formed, above-mentioned detection probe is picked up the temperature signal of human acupoint, and last art signal is delivered to A/D converter by electrical switch, convert digital signal to, handle through the computer processor systematic analysis, try to achieve the temperature approach of two measurement points, and demonstration or record.Realize that the purpose of this utility model key is: the differential temperature pick off is made up of the high LINEAR N PN audion detection probe and the high-performance constant0current generator that adopt carborundum to make; Above-mentioned constant0current generator is two passages; Between above-mentioned differential temperature pick off and electrical switch, be provided with one by preposition impedance matching box, high precision operating amplifier, electrical switch adjust that circuit and output impedance adapter etc. form can be to the gain of two pairs of probe signals and the four-way determining signal preprocessor that carries out independent adjustment zero point; This instrument also comprises: form the location survey part that circuit, constant0current generator, positioning probe, electrical switch, detecting circuit and location preprocessor are formed by oscillating circuit, amplitude limiter, special Wave; Above-mentioned location survey partly is the dual pathways; Above-mentioned oscillating circuit produces AC signal, and described AC signal produces triangular signal after amplitude limiter, special Wave form circuit, carry out current-modulation through constant0current generator again, and be input to probe; Above-mentioned cymoscope is by being that sub-switch links to each other with above-mentioned positioning probe, cymoscope can detect the AC signal of the reaction impedance of point variation that acts on human body, and deliver to the location preprocessor of forming by preposition impedance matching box, high precision operating amplifier and output impedance adapter etc., by electrical switch the two-way AC signal of reaction human acupoint impedance variation is delivered to the microprocessor system analyzing and processing of A/D converter and single-chip microcomputer composition, the AC impedance difference of trying to achieve two measurement points and demonstration again, store and print record.
This instrument is provided with one group of switch, keyboard and display lamp at outer casing frontispiece.Also comprise at outer casing frontispiece: one 6 of light-emitting diode displays, two demonstrations in the left side locate, 4 display parameters in the right; TP μ P40B dot-matrix printer.
This instrument also comprises: gauge tap two contacts in a foot-driven type control box, control box link to each other with the storage key on the touch keyboard, can realize that the one man operation finishes testing.
The utlity model has following effect:
1. be provided with high-performance constant-current source and having and independently adjust the independent signal passage of each passage zero point, gain, and have the non-signal that suddenlys change disturbed and carry out degenerative function, thereby guaranteed the precision and the stability of instrument;
2. set up the tumor-localizing test section, and adopted the ac impedance measurement method, made instrument have positioning function;
3. display is that 6 LED show the resolution height;
4. be provided with micro-printer and foot-propelled gauge tap, detecting operation can be finished by a people, and can print diagnosis report, detection curve draws.
The picture explanation:
Fig. 1 is an appearance structure sketch map of the present utility model.
Fig. 2 is an electrical schematic diagram of the present utility model.
This utility model embodiment sees accompanying drawing: among Fig. 1,1 is the selection soft-touch control and the display lamp of 2 probes; The 2nd, temperature-sensing probe; The 3rd, touch keyboard comprises: the single sound of qualitative/position selection key, timing sends key, storage key, printing key, check key, initiate key; The 4th, under-voltage display lamp; The 5th, on and off switch; The 6th, foot-propelled detects control box; The 7th, TP μ P40B dot-matrix printer; The 8th, power line; The 9th, casing; The 10th, qualitative/positioning light; The 11st, one 6 of light-emitting diode displays, two on the left side shows surveys upper/lower positions, 4 display parameters in the right.Fig. 2 is this instrument electrical schematic diagram, and constant0current generator is by error amplifier A
1, A
5, the high precision reference source property sent out device D
1, Zener diode D
2, P type high impedance field effect transistor and several resistance forms.Above-mentioned error amplifier effect is to guarantee VR=R
3I
0, its positive input termination D
1The voltage stabilizing end, negative input end meets field effect transistor G respectively
1, G
2The S utmost point, outfan meets field effect transistor G by resistance respectively
1, G
2The G utmost point, field effect transistor G
1, G
2The S utmost point, i.e. error amplifier A
1, A
5Negative input end pass through resistance R respectively
3, R
17 meet D
1The other end, at D
1With R
3Can meet a stabilivolt D between link and the power regulator positive pole
2, give D
1And R
3Burning voltage is provided.Above-mentioned field effect transistor G
1, G
2The D utmost point is connected with the signal output part of probe respectively, provide constant electric current to probe, the assurance signal reacts the variations in temperature at acupuncture point truly, on the other hand probe signal is delivered to the determining signal preprocessor.The constant current output accuracy that this circuit is formed reaches in the 1 μ A.Each passage of determining signal preprocessor has independently electrical switch adjustment circuit, and electrical switch is adjusted circuit by electrical switch T
1, T
2, T
3, T
4, composition such as several adjustable resistances and high precision reference source generator.T wherein
1, T
3Movable contact meet amplifier A
3, A
7Outfan, two fixed contact meets amplifier A by two adjustable resistances respectively
3, A
7Negative input end.T
2, T
4Movable contact meet amplifier A
3, A
7Negative input end, T
2, T
4Movable contact meet amplifier A
3, A
7Positive input terminal, two fixed contact meets Zener diode D by two adjustable resistance branch roads respectively
3, D
4The voltage stabilizing end.At above-mentioned amplifier A
3, A
7Negative input end and outfan between also be connected to capacitor C
2, C
4, between outfan and ground wire, also be connected to capacitor C
13, C
14Above-mentioned C
2, C
4, C
13, C
14Can disturb negative feedback and the filtering effect carried out to the non-signal that suddenlys change.Above-mentioned four electronic switching circuits carry out the voltage adjustment to four inputs of above-mentioned operational amplifier, make the gain and the zero point of two couple (4) probe signal of apparatus preparation carry out independent adjustment, and then reach the on all four purpose of certainty of measurement of two pairs of probes.Two paths of signals after the amplification send A/D converter 7135 to convert digital quantity to by μ 3 electrical switch timesharing, is handled by the computer processor systematic analysis of forming with 8749 single-chip microcomputers then, and the temperature approach of trying to achieve two measurement points also shows, stores print record.The temperature approach resolution of this device is 0.01 ℃, and the analog level of amounting to amplifier output is 40 μ V, therefore adopt earlier and amplify separately, after get temperature approach method be to reach one of high-precision reason.
The location survey of this instrument partly is two passages, is example with a passage, and its vibration, amplitude limit, special Wave are died into circuit by A
9, A
10, D
5～D
9And R
36～R
33Form.Constant0current generator is by A
9, D
12, G
3And R
34,35Form.Owing to the impedance at acupuncture point is that due to illness condition changes, so signal also changes with the variation of impedance.During location survey, G
3D end by μ 1 electrical switch and impedance probe connection, by D
10, C
6, R
36And C
7The detecting circuit of forming detects above-mentioned impedance signal, through A
12Buffer and R
41, deliver to A
13The reverse input end of amplifier.A
13Be the OP27EP amplifier, this amplifier circuit also comprises: D
11, C
8, C
15, R
37～R
43D
11Be accurate reference power supply generator integrated circuit, A
13Positive input connect the branch pressure side of a reference source, at the zero point of control signal, the gain of signal is then by R
42Determine.C
8, C
15Be respectively negative feedback and filter capacitor.
The foot-propelled of this instrument detects control box and is one and is made up of base, loam cake, reed and pressure switch.
Claims (3)
1, a kind of novel tumor diagnostic apparatus, it is made up of detection probe, electronic selection switch, A/D converter, Single Chip Microcomputer (SCM) system display, regulated power supply and transformator etc., above-mentioned detection probe is picked up the temperature signal of human acupoint, and above-mentioned signal is delivered to A/D converter by electrical switch, convert digital signal to, handle through the computer processor systematic analysis, try to achieve the temperature approach of two measurement points, and demonstration or record; It is characterized in that:
(1) front of tool housing 9 is provided with: the selection touch switch of probe and display lamp 1; Temperature-sensing probe 2; Touch keyboard 3; Comprise: qualitative/position selection key, timing sound sends key, stores key, printing key, check key, initiate key; Under-voltage display lamp 4; On and off switch 5; Qualitative/positioning light; Light-emitting diode display-6, two on the left side shows the measuring position, 4 on the right shows measurement parameter; TP μ P40B dot-matrix printer;
(2) this instrument also comprises a foot-driven type control box, and gauge tap two contacts in the control box link to each other with the storage key on the touch keyboard;
(3) the differential temperature pick off of this instrument is made up of the high LINEAR N PN audion detection probe and the high-performance constant0current generator that adopt carborundum to make; Above-mentioned constant0current generator is two passages;
(4) this instrument between differential temperature pick off and electrical switch, be provided with one by preposition impedance matching box, high accuracy low noise operational amplifier, electrical switch adjust that circuit and output impedance adapter etc. form can be to the gain of two pairs of probe signals and the four-way determining signal preprocessor that carries out independent adjustment zero point;
(5) this instrument also comprises: form the location survey part that circuit, constant0current generator, positioning probe, electrical switch, detecting circuit and location preprocessor are formed by oscillating circuit, amplitude limiter, special Wave; Above-mentioned location survey partly is the dual pathways; Above-mentioned oscillating circuit produces AC signal, and described AC signal produces triangular signal after amplitude limiter, special Wave form circuit, carry out current-modulation through constant0current generator again, and be input to probe; Above-mentioned cymoscope links to each other with above-mentioned positioning probe by electrical switch, cymoscope can detect the AC signal of the reaction impedance of point variation that acts on human body, and deliver to the location preprocessor of forming by preposition impedance matching box, high precision operating amplifier and output impedance adapter etc., by electrical switch the two-way AC signal of reaction human acupoint impedance variation is delivered to the microprocessor system analyzing and processing of A/D converter and single-chip microcomputer composition, the AC impedance difference of trying to achieve two measurement points and demonstration again, store and print record.
2, novel tumor diagnostic apparatus as claimed in claim 1 is characterized in that: constant0current generator is made up of error amplifier, high precision reference source, Zener diode and P type high impedance field effect transistor; The voltage stabilizing end in the positive input termination high precision reference source of above-mentioned error amplifier, negative input end connects the S utmost point of field effect transistor, the G utmost point of output termination field effect transistor; The S utmost point of field effect transistor, promptly the negative input end of error amplifier connects the other end of above-mentioned Zener diode by a resistance, and the D utmost point of above-mentioned field effect transistor is connected with the probe signal outfan.
3, novel tumor diagnostic apparatus as claimed in claim 1 is characterized in that: each passage of determining signal preprocessor has independently electrical switch adjustment circuit, and electrical switch is adjusted circuit by electrical switch T
1, T
2, T
3, T
4, composition such as several adjustable resistances and reference power supply generator; T wherein
1, T
3Movable contact termination amplifier A
3, A
7Outfan, two fixed contact meets amplifier A by two adjustable resistances respectively
3, A
7Negative input end; T
2, T
4Movable contact meet amplifier A
3, A
7Positive input terminal, two fixed contact meets Zener diode D by two adjustable resistance branch roads respectively
3, D
4The voltage stabilizing end; At above-mentioned amplifier A
3, A
7Negative input end and outfan between also be connected to the negative feedback capacitor C
2, C
4, between outfan and ground wire, also be connected to filter capacitor C
13, C
14
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94211144 CN2188926Y (en) | 1994-05-16 | 1994-05-16 | Instrument for tumour diagnosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94211144 CN2188926Y (en) | 1994-05-16 | 1994-05-16 | Instrument for tumour diagnosis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2188926Y true CN2188926Y (en) | 1995-02-08 |
Family
ID=33828358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94211144 Expired - Fee Related CN2188926Y (en) | 1994-05-16 | 1994-05-16 | Instrument for tumour diagnosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2188926Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403986C (en) * | 2006-05-16 | 2008-07-23 | 杨诚 | Positioning precision detecting method and device for medical radiotherapy equipment |
-
1994
- 1994-05-16 CN CN 94211144 patent/CN2188926Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403986C (en) * | 2006-05-16 | 2008-07-23 | 杨诚 | Positioning precision detecting method and device for medical radiotherapy equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |