CN202458403U - Analyzer and nuclear medicine device - Google Patents
Analyzer and nuclear medicine device Download PDFInfo
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- CN202458403U CN202458403U CN 201220044672 CN201220044672U CN202458403U CN 202458403 U CN202458403 U CN 202458403U CN 201220044672 CN201220044672 CN 201220044672 CN 201220044672 U CN201220044672 U CN 201220044672U CN 202458403 U CN202458403 U CN 202458403U
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Abstract
The utility model discloses an analyzer and a nuclear medicine device, which are used for displaying energy signals which share the nuclear medicine device and conform to a preset threshold value on a main control device. The analyzer comprises an interface circuit, an analysis circuit and a sampling circuit, wherein the interface circuit is connected with the main control device; the analysis circuit is connected with the main control device by the interface circuit and used for receiving acquisition commands sent by the main control device, analyzing the energy signals acquired based on acquisition commands and converting the energy signals conforming to the preset conditions into image signals according to the analysis result and transmitting the image signals to the main control device; and the sampling circuit is connected with the analysis circuit and used for acquiring the energy signals of the nuclear medicine device according to the acquisition commands and transmitting the acquired energy signals to the analysis circuit. Due to the adoption of the analyzer disclosed by the utility model, the nuclear usage amount of the nuclear medicine device can be analyzed effectively and the analysis result can be displayed on the main control device in an image form.
Description
Technical field
This utility model relates to the Medical Equipment field, more specifically, relates to a kind of analyzer and nuclear medicine facility.
Background technology
Nuclear medicine is the applied science of nuclear technology in medical domain, the science of pharmacodiagnosis that a kind of exactly utilization is marked with radionuclide and treatment disease, and wherein the radionuclide tracer technique is the basic fundamental of nuclear medicine.Nuclear medicine comprises nucleic diagnosis and radionuclide therapy.The nuclear medicine inspection can be understood the function of main organs such as the heart, kidney, understands the blood perfusion of internal organs such as cardiac muscle, brain, lung, can understand and judge existence and the lymph metastasis and the bone transfer etc. of tumor, and it can find pathological changes when not having symptom.
But, in existing nuclear medicine facility use, multiple radiolabeled drugs is arranged, but, need to differentiate and analyze its energy score value because the energy of nuclear element is different, could effectively collect image.May cause the accurate inadequately problem of use of nuclear medicine facility like this, and, not propose effective solution at present as yet for this problem.
The utility model content
This utility model discloses a kind of analyzer and nuclear medicine facility, is used for solving the accurate inadequately problem of use of the nuclear medicine facility that prior art exists.
For realizing above-mentioned purpose, an aspect according to this utility model provides a kind of analyzer, and adopts following technical scheme:
A kind of analyzer is used for the energy spectrometer of nuclear medicine facility, and said analyzer connects between main control device and the nuclear medicine facility, and comprising: interface circuit connects said main control device; Analysis circuit; Connect said main control device through said interface circuit; Be used to receive the acquisition instructions that said main control device sends; And, will meet pre-conditioned energy signal according to said analysis result and convert picture signal into and be transferred to said main control device analyzing based on the energy signal of said acquisition instructions collection; Sample circuit connects said analysis circuit, be used for according to said acquisition instructions the energy signal of said nuclear medicine facility being gathered, and the said energy signal that will collect returns to said analysis circuit.
Further, analyzer also comprises: comparison circuit, connect said sample circuit and said analysis circuit respectively, and be used for the acquired signal of said sample circuit being carried out useful collection according to the predetermined threshold value of said acquisition instructions.
Further, said analysis circuit comprises: A/D changes transducer, connects said interface circuit, and the binary digital signal of the said acquisition instructions that is used for said interface circuit is received converts analogue signal into; Current-to-voltage convertor connects said A/D converter, and being used for said analog signal conversion is behind the voltage signal and output.
Further, said sample circuit comprises: input buffer circuit, connect said analysis circuit, and be used to receive said voltage signal; Control circuit connects said input buffer circuit, and said control circuit comprises first port and second port; Said first port is used for control logic voltage; Said second port is used for the control logic reference voltage, and during greater than said control logic reference voltage, said voltage signal is through the outfan of said input buffering level at said control logic voltage; During less than said control logic reference voltage, said voltage signal is without the outfan of said input buffering level at said control logic voltage.Output driving circuit connects the outfan of said input buffer circuit, is used to export said voltage signal, makes said sample circuit keep sample states.
Further, analyzer also comprises: motion control circuit, connect said interface circuit, and be used to receive the motion control instruction of said main control device and be transferred to said nuclear medicine facility.
Further; Said motion control circuit comprises: enumerator; Connect said nuclear medicine facility, be used to receive the pulse number that said nuclear medicine facility is sent, the photoelectric encoder that said pulse number is based on said nuclear medicine facility writes down and generates behind the kinematic parameter of said nuclear medicine facility; Reset circuit connects said enumerator, is used for when the pulse number of said counter records reaches the pulse number of setting, sends reset command to said nuclear medicine facility.
Further; Analyzer also comprises: signal amplification circuit, connect said interface circuit, and be used to receive the amplification instruction of said main control device; And according to the said picture signal of said amplification instruction amplification, and the said image signal transmission after will amplifying is given said main control device.
Another one aspect according to this utility model provides a kind of nuclear medicine facility, and adopts following technical scheme:
Nuclear medicine facility comprises above-mentioned analyzer.
The analyzer that this utility model provides can be analyzed the energy signal of nuclear medicine facility; And lower threshold value is set; Produce acquisition pulse, image data, and an analog data of gathering is given A/D transition card; The A/D transition card converts analog data to digital signal and gives the computer demonstration, and the control section in the analyzer is the action that comes control appliance through the order that computer provides.Pass through technique scheme; Can effectively solve the communication and the signal distinguishing ability of equipment and computer; Effectively the nuclear use amount of nuclear medicine facility is analyzed, and be presented on the main control device, two kinds of functions perfectly are combined on the circuit with the form of image.
Description of drawings
Accompanying drawing is used to provide the further understanding to this utility model, constitutes the application's a part, and illustrative examples of this utility model and explanation thereof are used to explain this utility model, do not constitute the improper qualification to this utility model.In the accompanying drawings:
Fig. 1 representes the primary structure sketch map of the described a kind of analyzer of this utility model embodiment;
Fig. 2 representes the concrete structure sketch map of the described a kind of analyzer of this utility model embodiment;
Fig. 3 representes the concrete structure sketch map of the described analysis circuit of this utility model embodiment;
Fig. 4 representes the primary structure sketch map of the described interface circuit of this utility model embodiment.
The specific embodiment
Embodiment to this utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that this utility model can be defined by the claims and cover is implemented.
Fig. 1 representes the primary structure sketch map of the described a kind of analyzer of this utility model embodiment.
Referring to shown in Figure 1, analyzer is used for the energy spectrometer of nuclear medicine facility, and said analyzer connects between main control device and the nuclear medicine facility, and comprising: interface circuit 11 connects said main control device (not shown); Analysis circuit 13; Connect said main control device through said interface circuit 11; Be used to receive the acquisition instructions that said main control device sends; And, will meet pre-conditioned energy signal according to said analysis result and convert picture signal into and be transferred to said main control device analyzing based on the energy signal of said acquisition instructions collection; Sample circuit 15 connects said analysis circuit 13, be used for according to said acquisition instructions the energy signal of said nuclear medicine facility (not shown) being gathered, and the said energy signal that will collect returns to said analysis circuit 13.
Through the technique scheme of present embodiment, analyzer is given computer the digital signal of gathering that converts to and is shown, the control section in the analyzer is the action that comes control appliance through the order that computer provides.Interface circuit adopts interface chip, plays the transmitting effect of data.
Fig. 2 representes the concrete structure sketch map of the described a kind of analyzer of this utility model embodiment.
Referring to shown in Figure 2; Analyzer can comprise that pci interface circuit 25, motion control circuit 20, signal amplification circuit 21, energy window are provided with circuit 22, comparison circuit 23, sampling hold circuit 24, and wherein, motion control circuit 20 connects pci interface circuit 25; Signal amplification circuit 21 connects pci interface circuit 25; Energy window is provided with circuit 22 and connects pci interface circuit 25, and comparison circuit connects energy window circuit 22 is set, and sampling hold circuit connects comparison circuit 23.
In the technique scheme of present embodiment, pci interface circuit 25 connects computer, and sampling hold circuit 24 connects nuclear medicine facility, its major function: the first, to the collection and the analysis of nuclear medicine facility signal; The second, can let through analyzer and to realize communicating by letter between computer and the nuclear medicine facility.
Fig. 3 representes the concrete structure sketch map of the described analysis circuit of this utility model embodiment.
Referring to shown in Figure 3; Analysis circuit adopts energy window that circuit is set; In computer; Pre-set the higher limit and the lower limit of energy window through acquisition software, energy window is provided with circuit and converts the higher limit of the energy window that sets in the acquisition software and lower limit to voltage analog, thereby realizes gathering the different energy signal.Implementation procedure can for: in acquisition software, set the higher limit (high energy) and the lower limit (mental retardation) of energy window, begin to gather the higher limit of energy window; Lower limit converts corresponding 8 binary codes to, and through the pci interface circuit, computer is passed to analyzer to 8 binary codes; After analyzer receives corresponding data; Former state output, the pairing binary code of higher limit is exported to L15-AD7524, converts digital signal to analogue signal (current signal I_out1); Become voltage amplifier through the L10-LF356 current conversion again, export upper_vout at last; The pairing binary code of lower limit is exported to L14-AD7524; Convert digital signal to analogue signal (current signal I_out1); Become voltage amplifier through the L11-LF356 current conversion again; Export lower_vout at last, it is to convert digital quantity to analog quantity output that AD7524 mainly acts on, and LF356 is that a current conversion becomes voltage amplifier (like upper_vout=I_out1*R34).
Fig. 4 representes the primary structure sketch map of the described interface circuit of this utility model embodiment.
Referring to shown in Figure 4, the function of pci interface circuit is to let computer communicate by letter with analyzer.Can realize by PCI9052; PCI9052 is a kind of target interface of pci bus cheaply chip; Have the transfer rate height, the advantage that data throughout is big, and can avoid the user directly in the face of complicated pci bus agreement; Can be provided for minitype high-performance pci bus target (subordinate) interface of adapter so that the ISA adapter can be rapidly, be transformed on the pci bus at low cost.Adopt PCI9052 can make the I/O data transfer rate on the adapter can make I/O data transfer rate on the adapter bring up to the 33MHz of PCI from the 8MHz of isa bus from PCI9052.Host CPU on the pci bus can directly read the data in the memorizer through PCI9052.The main effect in analyzer of pci interface circuit has: 1. in acquisition software, be provided with energy window on, 2. lower limit sets X, the amplification of Y-signal in acquisition software; 3. in acquisition software, send a command to analyzer, analyzer is by the rotation of peripheral circuit control appliance, perhaps translation; The equipment rotation, in the time of translation, photoelectric encoder produces pulse; Give analyzer, analyzer is write down pulse number, in the time of identical with the pulse number of setting by the time; Give interrupt signal of acquisition software, acquisition software is given reset command of analyzer.Let the mechanical movement of equipment be reset to original state.
The function of sampling hold circuit is that X, Y-signal that equipment collects are done useful collection, realizes that by LF398 LF398 is by the input buffering level; Out drive stage, control circuit is formed, and control circuit is made up of control logic voltage V8 and control logic reference voltage V7; When V8＞V7. input signal is followed output through the input buffering level to outfan; When V8＜V0, input signal can not arrive outfan, is in off-state.X, in the sampling hold circuit of Y-signal, at the impulse wave of a T=0.7us of 8 feet of LF398 input, only when the high level of pulse, V8＞V7, circuit sampling keeps, and when the low level of pulse, circuit is not sampled.
The function of comparison circuit is: the outfan at LB13B produces a trailing edge triggering edge, and implementation procedure: 1. E0-in ' and E0-in compare, and both wave-shape amplitude are the same; The former is ahead of the latter at phase place, and rising edge of outfan E0-out1 output of L5 triggers L8A and L8B, and 2. E0-in compares with upper_out and lower_vout respectively; Compare with upper-out; Compare the outfan E0-out3 output low level of L6 at high level of the outfan E0-vout2 of L7 output and lower-vout; Through trigger L8A and L8B; Trailing edge of outfan at L13B triggers the edge, only triggers the edge at outfan output trailing edge, just can do useful collection to X, Y-signal that equipment is come.The function of signal amplification circuit is: effectively amplify X, Y-signal.Implementation procedure: set amplification at acquisition software, pass to analyzer through computer, analyzer is given 4051 A, and high-low level takes place respectively for B, C; Be used for gating Xi passage, such as, A=0, B=0; C=0, the amplification=R71/R52 of X signal, the amplification of Y-signal=R56/R55.4051 gating be the X0 passage, A=1; B=1, C=1, the amplification=R70/R52 of X signal, the amplification of Y-signal=R69/R55.4051 gating X7.
The function of motion control circuit is: select the corresponding command to come the motor pattern of control appliance through computer software.It can realize two kinds of motor patterns: translational motion with rotatablely move.The speed of every kind of motion is divided into again at a high speed, high speed, middling speed, four speed of low speed; In data acquisition or debug process, set after the motor pattern of software, send corresponding instruction and arrive the analyzer interface circuit through computer bus, analyzer receives orders; Give an order to control circuit, let peripheral circuit come rotatablely moving of control appliance or translational motion, meanwhile; The anglec of rotation or the translation distance of the photoelectric encoder recording equipment in the equipment send pulse to analyzer, and analyzer is noted pulse number; When pulse number reaches the pulse number of setting with analyzer when identical, analyzer sends reset command, and motion finishes.
Nuclear medicine facility comprises above-mentioned analyzer.
Technique scheme through this utility model; Analyzer analysing energy signal is provided with window up and down, produces acquisition pulse; Image data; And give A/D transition card an analog data of gathering, the A/D transition card converts analog data to digital signal and gives computer and show that the control section in the analyzer card is the action that comes control appliance through the order that computer provides.
Claims (8)
1. analyzer is used for the energy spectrometer of nuclear medicine facility, and said analyzer connects between main control device and the nuclear medicine facility, it is characterized in that, comprising:
Interface circuit connects said main control device;
Analysis circuit; Connect said main control device through said interface circuit; Be used to receive the acquisition instructions that said main control device sends; And, will meet pre-conditioned energy signal according to said analysis result and convert picture signal into and be transferred to said main control device analyzing based on the energy signal of said acquisition instructions collection;
Sample circuit connects said analysis circuit, be used for according to said acquisition instructions the energy signal of said nuclear medicine facility being gathered, and the said energy signal that will collect returns to said analysis circuit.
2. analyzer according to claim 1 is characterized in that, also comprises:
Comparison circuit connects said sample circuit and said analysis circuit respectively, is used for according to the predetermined threshold value of said acquisition instructions the acquired signal of said sample circuit being carried out useful collection.
3. analyzer according to claim 1 is characterized in that, said analysis circuit comprises:
A/D changes transducer, connects said interface circuit, and the binary digital signal of the said acquisition instructions that is used for said interface circuit is received converts analogue signal into;
Current-to-voltage convertor connects said A/D converter, and being used for said analog signal conversion is behind the voltage signal and output.
4. analyzer according to claim 1 is characterized in that, said sample circuit comprises:
Input buffer circuit connects said analysis circuit, is used to receive said voltage signal;
Control circuit connects said input buffer circuit, and said control circuit comprises first port and second port; Said first port is used for control logic voltage; Said second port is used for the control logic reference voltage, and during greater than said control logic reference voltage, said voltage signal is through the outfan of said input buffering level at said control logic voltage; During less than said control logic reference voltage, said voltage signal is without the outfan of said input buffering level at said control logic voltage.
Output driving circuit connects the outfan of said input buffer circuit, is used to export said voltage signal, makes said sample circuit keep sample states.
5. analyzer according to claim 1 is characterized in that, also comprises:
Motion control circuit connects said interface circuit, is used to receive the motion control instruction of said main control device and is transferred to said nuclear medicine facility.
6. analyzer according to claim 5 is characterized in that, said motion control circuit comprises:
Enumerator connects said nuclear medicine facility, is used to receive the pulse number that said nuclear medicine facility is sent, and the photoelectric encoder that said pulse number is based on said nuclear medicine facility writes down and generates behind the kinematic parameter of said nuclear medicine facility;
Reset circuit connects said enumerator, is used for when the pulse number of said counter records reaches the pulse number of setting, sends reset command to said nuclear medicine facility.
7. analyzer according to claim 1 is characterized in that, also comprises:
Signal amplification circuit connects said interface circuit, is used to receive the amplification instruction of said main control device, and amplifies said picture signal according to said amplification instruction, and the said image signal transmission after will amplifying is given said main control device.
8. a nuclear medicine facility is characterized in that, comprises each described analyzer in the claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220044672 CN202458403U (en) | 2012-02-10 | 2012-02-10 | Analyzer and nuclear medicine device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220044672 CN202458403U (en) | 2012-02-10 | 2012-02-10 | Analyzer and nuclear medicine device |
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| Publication Number | Publication Date |
|---|---|
| CN202458403U true CN202458403U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220044672 Withdrawn - After Issue CN202458403U (en) | 2012-02-10 | 2012-02-10 | Analyzer and nuclear medicine device |
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| Country | Link |
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| CN (1) | CN202458403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239244A (en) * | 2012-02-10 | 2013-08-14 | 北京大基康明医疗设备有限公司 | Analyzer and nuclear medicine equipment |
-
2012
- 2012-02-10 CN CN 201220044672 patent/CN202458403U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239244A (en) * | 2012-02-10 | 2013-08-14 | 北京大基康明医疗设备有限公司 | Analyzer and nuclear medicine equipment |
| CN103239244B (en) * | 2012-02-10 | 2015-07-01 | 北京大基康明医疗设备有限公司 | Analyzer and nuclear medicine equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20150701 |
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| RGAV | Abandon patent right to avoid regrant |