CN202078330U - Intracranial and extracranial blooding signal detection system - Google Patents
Intracranial and extracranial blooding signal detection system Download PDFInfo
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- CN202078330U CN202078330U CN 201120144370 CN201120144370U CN202078330U CN 202078330 U CN202078330 U CN 202078330U CN 201120144370 CN201120144370 CN 201120144370 CN 201120144370 U CN201120144370 U CN 201120144370U CN 202078330 U CN202078330 U CN 202078330U
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Abstract
The utility model discloses an intracranial and extracranial blooding signal detection system, which comprises a signal collecting system and a signal processing system, wherein the signal collecting system comprises a transcranial probe, a color ultrasonic probe, a transcranial module and a color ultrasonic module, wherein the transcranial module is used for receiving a transcranial signal, amplifying a transcranial Doppler (TCD) signal and carrying out analog-to-digital conversion on the TCD signal, and the color ultrasonic module is used for receiving a color ultrasonic module, amplifying the color Doppler blooding signal and carrying out analog-to-digital conversion and digital filtering on the color Doppler blooding signal. The signal processing system comprises a sampling module and a data processing module, wherein the sampling module is used for reading TCD signal data or color Doppler blooding signal data and caching and outputting the TCD signal data or the color Doppler blooding signal data to the data processing module, and the data processing module is used for post-processing the data output by the sampling module and sending the post-processed data to a data displaying module to display the data. The intracranial and extracranial blooding signal detection system realizes the detection of the transcranial signal or the ultrasonic signal by equipment.
Description
Technical field
This utility model relates to field of medical, particularly intracranial auterblood signal detection system.
Background technology
It is the acute cerebrovascular disease of main clinical manifestation with cerebral tissue ischemia or hemorrhagic damage sings and symptoms that apoplexy is one group, has sickness rate height, disability rate height and the high characteristics of mortality rate, is one of most important fatal disease in the world.
China resident cause of the death sampling survey for the third time result who announced in 2008 shows that cerebrovascular has become the national primary cause of death of China, and mortality rate is higher than American-European countries 4-5 doubly, is 3.5 times of Japan, even is higher than developing countries such as Thailand, India.In cerebrovascular, Health cost and the life threat that causes with apoplexy attached most importance to especially.It not only serious harm patient's life and health, also influence its quality of life, bring heavy medical treatment, economy and burden on society also for simultaneously patient and family thereof and society.
Ischemic cerebrovascular is the main cause that causes apoplexy (apoplexy).Have 1/3rd to be carotid disease in the ischemic cerebrovascular, 2/3rds is the intracranial vessel disease, so clinical department of neurology need detect the blood flow information of intracranial and cranium outer section blood vessel (as carotid artery and subclavian artery etc.) simultaneously when checking.
At present, diagnosis and prevention cerebral infarction most convenient, the most effective and low cost method are to detect the outer blood vessel of cranium and with transcranial doppler blood flow analysis instrument (being called for short " through cranium ") inspection entocranial artery blood vessel with colorful Doppler ultrasound diagnostic apparatus (being called for short " color ultrasound ").By examination to carotid artery and main intracranial arteries situation, both can delay its narrow progress to the narrow very not serious patient's behavior of giving guidance or pharmaceutical intervention early, can take to get involved or operative treatment to narrow serious patient again, remove the source of disease that apoplexy takes place for it, reduce apoplexy wounded or disabled thereafter probability takes place to reach.
Colorful Doppler ultrasound diagnostic apparatus is to be used for the effective tool of scrutineer soma pathological changes and vascular flow situation.But bone has very big decay to ultrasound wave, so conventional color Doppler is mainly used to the position of checking that heart, abdomen organ, cervical region etc. do not have bone to block.
The 1980s utility model detect the device-transcranial doppler of main intracranial arteries blood flow by the skull sound transmitting window with low-frequency ultrasonic waves.What this equipment was made on the basis of conventional color ultrasound is improved to: probe changes single array element into by many array elements, the sensitivity that has increased emission and received, but lost the two-dimensional imaging function.
Therefore, when checking the outer vascular flow of intracranial, colorful Doppler ultrasound diagnostic apparatus uses the high-frequency linear array probe to detect carotid artery, uses convex array probe detection carotid artery intracranial segment and subclavian artery.Transcranial doppler blood flow analysis instrument uses the low frequency pulse wave probe to check intracranial one-level tremulous pulse, as anterior cerebral artery, medium-sized artery, artery, basilar artery and vertebral artery etc.
At present, a patient's inspection needs color ultrasound and finishes jointly through two equipment of cranium, and under the situation of using two equipment, by patient and doctor will move to another equipment from an equipment side, it was extremely inconvenient to operate.Particularly the inspection to old patient with severe symptoms is difficult more.In addition, most hospitals make accuracy and the efficient checked all be subjected to very big influence because the restriction of place and funds has only been disposed through cranium to department of neurology, and patient's cervical region color ultrasound examination need go function section or Ultrasonography to carry out.And detection data of two equipment, case report etc. also are independently, are not easy to clinical consulation, analysis-by-synthesis and teaching demonstration.
In addition, strip off in some operations such as art, need carry out the long-range monitoring, need simultaneously to detect the operation on neck situation at any time with linear array probe to intracranial vessel at carotid artery, need can synchronous recording two places blood flow information, provide timely guidance to operation.Because the space on bed side is very limited in the art, so adopt two equipment very inconvenient, the inspection item that causes can't be realized.
And color ultrasound mostly has abdominal part, department of obstetrics and gynecology etc. and detects software and supporting hardware, but these functions need not to use in the inspection of cerebrovascular, and the price of color ultrasound and function is how much closely related, and redundancy function idle causes very big waste.
Along with the color ultrasound technology rapid development, the external high-grade color ultrasound of part has increased low frequency phased array probe (or convex array probe) and has checked intracranial vessel, and is furnished with through cranium software.The probe of this color ultrasound is more than 128 array elements, except seeing intracranial doppler blood stream information, can also see the two-dimentional organizational structure of intracranial, and some hospital substitutes through the cranium inspection with this color ultrasound in Europe.
But above-mentioned color ultrasound, also has the following disadvantages in the partial function of cranium in realization:
1, the phased array probe imaging of above-mentioned color ultrasound is generally the array element more than 128, and the unit are of each array element is all very little, and transmitting power is also less, and is single array element through the cranium probe, and the unit are of each array element is big, and transmitting power is also big.So the comprehensive receiving sensitivity of phased array probe is much smaller than through cranium probe, transmitting power is not high through the cranium probe yet, so the recall rate of this color ultrasound of employing is far below through cranium.Because suffering from the people of intracranial vessel disease mostly is middle-aged and elderly people, bone calcification aggravation, the ultrasonic sound transmitting window of skull is more far short of what is expected than youngster, only is applicable to the extraordinary part special populations of sound transmitting window such as youngster so phased array probe detects the method for intracranial vessel.
2, do not have the transcranial doppler blood flow analysis software of specialty on the above-mentioned color ultrasound, the data volume of intracranial blood flow and quantity of information are far fewer than transcranial doppler.
3, above-mentioned color ultrasound can not be done long cerebral blood flow monitoring.For example,, need carry out the intracranial vessel monitoring for a long time, be furnished with special the monitoring probe and the headstock, can realize the long-range monitoring of cerebral blood flow, but color ultrasound can not realize this function through cranium for some particular procedure.
4, this scheme must realize on high-grade color ultrasound, and the cost price of high-grade color ultrasound is through more than ten times of cranium, exceeds the ability to bear of most of hospitals economically, is difficult to large-scale popularization.
Thereby prior art is still waiting to improve and improve.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of intracranial auterblood signal detection system, and this system can the sense colors doppler blood flow signal, can detect the transcranial doppler signal again.
In order to achieve the above object, this utility model has been taked following technical scheme:
A kind of intracranial auterblood signal detection system, comprise signal acquiring system, be used to the signal processing system transmitting first communication interface and second communication interface of data and be used for the signal that signal acquiring system collects is processed and displayed, wherein, described signal acquiring system comprises: be used to obtain popping one's head in through cranium of transcranial doppler signal; Be used to obtain the color ultrasound probe of color Doppler blood flow signal; Be used to receive the transcranial doppler signal, and to this transcranial doppler signal amplify with analog-to-digital conversion process through the cranium module; Be used to receive the color Doppler blood flow signal, and to this color Doppler blood flow signal amplifies, analog digital conversion and digital filtering are handled color ultrasound module; Described through cranium probe be connected through the cranium module, pass through first communication interface through the cranium module and link to each other with signal processing system; Described color ultrasound probe is connected with the color ultrasound module, and the color ultrasound module links to each other with signal processing system by second communication interface; Described signal processing system comprises: be used to read the transcranial doppler signal data after the analog-to-digital conversion process or read color Doppler blood flow signal data after digital filtering is handled, this transcranial doppler signal data or color Doppler blood flow signal data buffer memory are exported to the sampling module of data processing module; Be used for the data of sampling module output are carried out post processing, and the post processing data sent to the data processing module of data disaply moudle; Be used to show the data disaply moudle of described post processing data; Described sampling module is connected with data processing module respectively with data disaply moudle.
Described intracranial auterblood signal detection system wherein, comprises through the cranium module: first amplifying unit that is used for the transcranial doppler signal is carried out processing and amplifying; Be used for and carry out first AD conversion unit that analog digital conversion obtains the transcranial doppler signal data to the transcranial doppler signal after amplifying; Described first amplifying unit is connected with first AD conversion unit respectively with through the cranium probe.
Described intracranial auterblood signal detection system, wherein, described color ultrasound module comprises: second amplifying unit that is used for the color Doppler blood flow signal is carried out processing and amplifying; Be used for the color Doppler blood flow signal after amplifying is carried out second AD conversion unit that analog digital conversion obtains color Doppler blood flow signal data; Be used for described color Doppler blood flow signal data are carried out the digital filtering unit that high low-pass digital filter is handled; Described color ultrasound probe, second amplifying unit, second AD conversion unit are connected successively with the digital filtering unit.
Described intracranial auterblood signal detection system, wherein, the described single array element low frequency pulse wave probe that comprises 1.0MHz to 2.0MHz through the cranium probe.
Described intracranial auterblood signal detection system, wherein, described color ultrasound probe comprises linear array probe and convex array probe, described linear array probe is connected with the color ultrasound module respectively with convex array probe.
The beneficial effects of the utility model are: 1, the intracranial auterblood signal detection system that provides of this utility model embodiment, and only need use an equipment just can finish to the detection of cerebrovascular, the patient need not change inspection chamber or sick bed, has made things convenient for doctor and patient; And equipment and supporting sick bed occupation space have been saved.
2, the intracranial auterblood signal detection system that provides of this utility model embodiment is exclusively used in the detection of cerebrovascular and peripheral blood vessel, and the product clinical application is clear and definite, with strong points.
3, the intracranial auterblood signal detection system that provides of this utility model embodiment can save in the color doppler ultrasonography circuit hardware and software and intracranial, cervical region and peripheral blood vessel detect irrelevant circuit and software (as abdominal part detect software, department of obstetrics and gynecology detect software and related probes interface etc.), its acquisition cost adds the acquisition cost of a transcranial doppler far below a whole body color ultrasound (not having special-purpose blood vessel color ultrasound at present) of homogenous quantities, remarkable in economical benefits does not have the function of unnecessary waste.
In a word, this utility model improved checking efficiency, increase system stability, save equipment usage space, reduced equipment cost.
Description of drawings
The theory diagram of the intracranial auterblood signal detection system that Fig. 1 provides for this utility model embodiment.
The structured flowchart that Fig. 2 provides for this utility model embodiment through the cranium module.
The structured flowchart of the color ultrasound module that Fig. 3 provides for this utility model embodiment.
The method flow diagram that the intracranial blood flow signal that Fig. 4 provides for this utility model embodiment shows.
The method flow diagram that the cranium auterblood signal that Fig. 5 provides for this utility model embodiment shows.
The method flow diagram that intracranial that Fig. 6 provides for this utility model embodiment and cranium auterblood signal show.
The specific embodiment
This utility model provides a kind of intracranial auterblood signal detection system, and is clearer, clear and definite for making the purpose of this utility model, technical scheme and effect, below with reference to accompanying drawing and give an actual example this utility model is further described.Should be appreciated that specific embodiment described herein only in order to explanation this utility model, and be not used in qualification this utility model.
This utility model provides a kind of and had both had bidimensional image in conjunction with the outer blood vessel of Color Doppler Detection cranium, can conveniently detect the blood flow state of the main blood vessel of intracranial again, blood flow and the blood flow of the outer blood vessel of cranium and the intracranial auterblood signal detection system of two-dimentional organization factors of intracranial vessel can also be provided synchronously.
For detection or the detection of transcranial doppler signal or the synchronous detecting of color Doppler blood flow signal and transcranial doppler signal that realizes the color Doppler blood flow signal, this utility model adopts intracranial auterblood signal detection system as shown in Figure 1, it comprises signal acquiring system and signal processing system two large divisions, signal processing system adopts PC(Personal Computer usually, personal computer) system realizes, signal acquiring system is connected with second communication interface by first communication interface with signal processing system.
Described signal acquiring system is gathered the color Doppler blood flow signal, perhaps transcranial doppler signal, perhaps gather color Doppler blood flow signal and transcranial doppler signal simultaneously, and the color Doppler blood flow signal amplified, analog digital conversion and digital filtering are handled and are obtained color Doppler blood flow signal data and/or the transcranial doppler signal amplified with analog-to-digital conversion process obtaining the transcranial doppler signal data, give signal processing system by first communication interface and second communication interface with transcranial doppler signal data and color Doppler blood flow signal transfer of data respectively then.Described signal processing system is used for the signal that signal acquiring system collects is processed and displayed.
See also Fig. 1, described signal acquiring system comprises through cranium probe, color ultrasound probe, through cranium module and color ultrasound module, described through the cranium probe be connected through the cranium module, pass through first communication interface through the cranium module and link to each other with signal processing system; The color ultrasound probe is connected with the color ultrasound module, and the color ultrasound module links to each other with signal processing system by second communication interface.
Wherein, be used to obtain the transcranial doppler signal, describedly be used to receive the transcranial doppler signal that obtains through the cranium probe, and this transcranial doppler signal is amplified and processing such as analog digital conversion and sampling maintenance through the cranium module through cranium probe.Described first communication interface is a USB interface, will handle to signal processing system through the transfer of data of cranium resume module by this USB interface.
See also Fig. 2, in the specific implementation, describedly comprise first amplifying unit and first AD conversion unit through the cranium module, described first amplifying unit is connected with first AD conversion unit respectively with through the cranium probe, be used for the transcranial doppler signal is carried out processing and amplifying, first AD conversion unit is used for that the transcranial doppler signal after amplifying is carried out analog digital conversion and obtains the transcranial doppler signal data.
Describedly be used to detect the entocranial artery blood vessel through the cranium module, this can connect a plurality of through the cranium probe through the cranium module, and it can frequency of utilization be single array element low frequency pulse wave probe of 1.0MHz to 2.0MHz through the cranium probe; Also can match other probes, as continuous wave/impulse wave probe of 4MHz/8MHz, the impulse wave probe of 16MHz/20MHz etc.
Described color ultrasound probe is used to obtain the color Doppler blood flow signal, and the color ultrasound module is used to receive the color Doppler blood flow signal that the color ultrasound probe obtains, and to this color Doppler blood flow signal amplify, processing such as analog digital conversion, digital filtering and sampling maintenance.Described second communication interface is 1394 mouthfuls, handles to signal processing system by these 1394 mouthfuls of transfer of data with the color ultrasound resume module.
In the present embodiment, described color ultrasound module is used to detect the outer blood vessels of cranium such as carotid artery, and the color ultrasound that is connected with this color ultrasound module probe comprises that linear array probe and convex array probe, described linear array probe are the high-frequency linear array probe, and its frequency range can be between 5MHz to 12MHz; The frequency range of convex array probe is between 2MHz to 5MHz; Also can match the phased array probe of frequency range between 1MHz to 4MHz; Also can match other probes.
See also Fig. 3, described color ultrasound module comprises second amplifying unit, second AD conversion unit and digital filtering unit, and described second amplifying unit is connected with the digital filtering unit by second AD conversion unit.Described second amplifying unit is connected with the color ultrasound probe, be used for the color Doppler blood flow signal is carried out processing and amplifying, described second AD conversion unit is used for that the color Doppler blood flow signal after amplifying is carried out analog digital conversion and obtains color Doppler blood flow signal data, and described digital filtering unit is used for that described color Doppler blood flow signal data are carried out high low-pass digital filter to be handled.
This utility model is realizing that at intracranial auterblood signal detection system the color Doppler blood flow signal only need start at least one color ultrasound probe work when detecting, when realizing the transcranial doppler signal detection, only need to start at least one through the work of cranium probe, when realizing the synchronous detecting function of color Doppler blood flow signal and transcranial doppler signal, by at least one different parts vascular flow information through cranium probe and detection simultaneously of at least one color ultrasound probe or monitoring patients.
Please continue to consult Fig. 1, described signal processing system comprises sampling module, data processing module and data disaply moudle; Described sampling module is connected with data processing module respectively with data disaply moudle.
When the intracranial auterblood signal detection system that provides as this utility model embodiment only uses through the cranium measuring ability, described sampling module is used to read the transcranial doppler signal data after the analog-to-digital conversion process, this transcranial doppler signal data buffer memory is exported to data processing module, when the intracranial auterblood signal detection system that provides as this utility model embodiment only uses the color ultrasound measuring ability, described sampling module is used to read the color Doppler blood flow signal data after digital filtering is handled, and this color Doppler blood flow signal data buffer memory is exported to data processing module.
Described data processing module is a control chip, is used for the data of sampling module output are carried out post processing, and the post processing data are sent to data disaply moudle.
The intracranial auterblood signal detection system that provides as this utility model embodiment uses simultaneously through cranium and detects and during the color ultrasound measuring ability, the color Doppler blood flow signal data that described sampling module also is used to read transcranial doppler signal data after the analog-to-digital conversion process and digital filtering after handling, this transcranial doppler signal data and color Doppler blood flow signal data are carried out buffer memory, rate-matched processing, make the output of transcranial doppler signal data and color Doppler blood flow signal data synchronous, and be uploaded to data processing module.
Be provided with the date processing accelerator module in the described data processing module, when data processing module is handled the data of transcranial doppler signal data and color Doppler blood flow signal data simultaneously, by the speed of this date processing accelerator module raising date processing, to satisfy the rate request of signal processing.In addition, the process of data processing module processing transcranial doppler signal data and color Doppler blood flow signal data is identical with the process of independent processing transcranial doppler signal data or color Doppler blood flow signal data, no longer describes in detail herein.
Described data disaply moudle can adopt liquid crystal display and CRT monitor, be used to show described post processing data, not only (as: color ultrasound array element imaging results shows this data disaply moudle through the result (as: blood flow frequency spectrum, blood flow rate index etc.) of cranium signal (being the transcranial doppler signal data) and the result of color ultrasound signal (being color Doppler blood flow signal data) with independent demonstration, control parameter demonstration etc.), also can show simultaneously, be convenient to the doctor testing result is judged through cranium signal processing results and color ultrasound signal processing results.
For convenience of subsequent treatment, the intracranial auterblood signal detection system that this utility model embodiment provides also comprises data storage and playback module and reporting modules.Described data storage and playback module provide data storage and playback function, can carry out follow-up measurement and weight analysis by the off-line loading data.Reporting modules can be printed the color ultrasound picture, statistics detects data etc., to output on same examining report through the data of cranium module and detection of color ultrasound module or monitoring, form comprehensive picture and text report, also can print data separately through cranium detects and color ultrasound detects.
In order to overcome the restriction of operating system to single file size, described data storage and playback module comprise: burst memory element, associative cell and data readback unit.Wherein, described burst memory element is used for described post processing data are carried out the burst storage by predetermined length; Associative cell is used for the same post processing data of burst storage are carried out parallel connection; The data readback unit is used for the data of playback burst memory element.
In the present embodiment, described burst memory element adopts the file fragmentation algorithm to carry out the storage of Large Volume Data.This burst memory element has been established a kind of new file data structure, and a plurality of slicing files of same data carry out association by associative cell.For example, in the recording process of data handling system, the capacity of setting single file is 100MB, when the file of storing surpasses 100MB, close current file, and new files is carried out the storage of data automatically, set up related with current file history file simultaneously.This relation mechanism has overcome the restriction of operating system to single file size, but also the orderly loading efficiency when effectively having improved data readback.
The intracranial auterblood signal detection system that this utility model provides has been realized the synchronous processing through cranium signal and color ultrasound collection by increased sampling module in system.This sampling module is a worker thread that real-time is higher, it is actual to be software module, it is different from prior art realizes synchronously by hardware module, and the relative hardware module of this sampling module has characteristics such as good, the maintainable good and cost of upgradability is low.
In the present embodiment, described sampling module in real time data transmission interface (be USB mouth and 1394 mouthfuls) is sent after cranium signal and color ultrasound signal carry out buffer memory, handle synchronously, aiming at sequential, data upload is carried out subsequent treatment to data processing module.
Described sampling module comprises data-reading unit, data buffer storage unit, rate-matched unit and data upload unit.
Described intracranial auterblood signal detection system use simultaneously equipment when cranium and color ultrasound function, earlier read transcranial doppler signal data and the color Doppler blood flow signal data that described first communication interface and second communication interface transmit respectively by data-reading unit, by data buffer storage unit described transcranial doppler signal data and color Doppler blood flow signal data are carried out buffer memory, by the rate-matched unit transcranial doppler signal data and the color Doppler blood flow signal data of buffer memory output are carried out matching treatment afterwards, make the output of transcranial doppler signal data and color Doppler blood flow signal data synchronous, by the data upload unit data upload of rate-matched unit output is carried out Data Post to data processing module then.
Described intracranial auterblood signal detection system use equipment when cranium function or color ultrasound function, described rate-matched unit only serves as the role of transfer of data, directly give the data upload unit, by the data upload unit data upload is carried out Data Post to data processing module then the transcranial doppler signal data or the color Doppler blood flow signal transfer of data of buffer memory output.
Three kinds of functions of the intracranial auterblood signal detection system that this utility model embodiment provides (promptly through cranium, color ultrasound, through the function of cranium and color ultrasound synchronous detecting) can be selected by the doctor according to concrete detection needs.
See also Fig. 4, this utility model embodiment correspondence provides a kind of intracranial auterblood signal detection system that adopts to realize the method that intracranial or cranium auterblood signal show.Described method may further comprise the steps:
S110, receive the transcranial doppler signal, and with this transcranial doppler signal amplify with analog-to-digital conversion process after, be transferred to sampling module;
S120, read transcranial doppler signal data after the analog-to-digital conversion process, this transcranial doppler signal data buffer memory is exported to data processing module by sampling module;
S130, the data of sampling module output are carried out post processing, and the post processing data are sent to data disaply moudle show by data processing module.
Present embodiment adopts intracranial auterblood signal detection system to realize that the function of intracranial blood flow signal detection is similar to the existing independent measuring ability through cranium, no longer describes in detail herein.
See also Fig. 5, this utility model embodiment is also corresponding to provide a kind of intracranial auterblood signal detection system that adopts to realize the method that cranium auterblood signal shows.Described method may further comprise the steps:
S210, receive the color Doppler blood flow signal, and this color Doppler blood flow signal is amplified, after analog digital conversion and digital filtering handle, is transferred to sampling module;
S220, the color Doppler blood flow signal data after being read digital filtering and handled by sampling module are exported to data processing module with color Doppler blood flow signal data buffer memory;
S230, the data of sampling module output are carried out post processing, and the post processing data are sent to data disaply moudle show by data processing module.
Present embodiment adopts intracranial auterblood signal detection system to realize that the function of cranium auterblood signal detection is similar to the measuring ability that has independent color ultrasound machine now, no longer describes in detail herein.
See also Fig. 6, this utility model embodiment is also corresponding to provide a kind of intracranial auterblood signal detection system that adopts to realize the method that intracranial and cranium auterblood signal show.Described method may further comprise the steps:
S310, reception transcranial doppler signal and color Doppler blood flow signal, described transcranial doppler signal is amplified and analog-to-digital conversion process, simultaneously described color Doppler blood flow signal is amplified, the analog digital conversion digital filtering handles, and is transferred to sampling module;
S320, the color Doppler blood flow signal data after reading transcranial doppler signal data after the analog-to-digital conversion process and digital filtering and handle by sampling module, this transcranial doppler signal data and color Doppler blood flow signal data are carried out buffer memory, rate-matched processing, make the output of transcranial doppler signal data and color Doppler blood flow signal data synchronous, and be uploaded to data processing module;
S330, the synchrodata of sampling module output is carried out post processing, and the post processing data are sent to data disaply moudle show synchronously by data processing module.
In a further embodiment, described method also comprises: by data storage and playback module described post processing data are carried out the burst storage.When data fragmentation was stored, the data that adopt slicing algorithm that data processing module is handled by the burst memory element were carried out the burst storage by predetermined length earlier, afterwards the same post processing data of burst storage are carried out parallel connection.
In a further embodiment, described method also comprises: when the needs data readback, the file that directly calls the burst storage carries out playback in regular turn.
This utility model is realized focusing on by realizing among the step S220 that it comprises through the synchronous demonstration of cranium signal and color ultrasound signal of method that intracranial and the outer vascular flow signal of cranium detect simultaneously: the first step, the color Doppler blood flow signal data after reading transcranial doppler signal data after the analog-to-digital conversion process and digital filtering and handling; Second the step, by data buffer storage unit described transcranial doppler signal data and color Doppler blood flow signal data are carried out buffer memory; The 3rd step, the transcranial doppler signal data and the color Doppler blood flow signal data of buffer memory output are carried out matching treatment, make the output of transcranial doppler signal data and color Doppler blood flow signal data synchronous by the rate-matched unit; Transcranial doppler signal data and color Doppler blood flow signal data upload that the 4th step, data upload unit will be exported are synchronously given data processing module.
Below exemplifying a specific embodiment is described in detail the method for sampling module synchrodata:
When the transfer of data of crossing through cranium module and color ultrasound resume module during to data transmission interface, earlier read data from data transmission interface by data-reading unit, it reads mode is interrupt mode, promptly when data transmission interface had data, operating system can come log-on data to read by the trigger data reading unit.After data read, data are carried out buffer memory in relief area, transfer to the rate-matched module afterwards and handle.Because than higher, but the granularity of data processing module deal with data is an one piece of data through cranium signals sampling rate and color ultrasound signals sampling rate.For for the cranium signal, it handles granularity is the data of 8ms, and being equivalent to handle frequency is 125Hz; For the color ultrasound signal, handling granularity is a two field picture, handles frequency and is generally i.e. one second 25 two field picture of 25Hz().In the specific implementation, the rate-matched unit with through cranium Signal Processing frequency 125Hz as the reference signal, come synchronous color ultrasound signal, promptly per 5 frames are suitable through the time of the time span of cranium signal and 1 frame color ultrasound image, make through cranium signal and color ultrasound signal and export synchronously.Data upload after handling is synchronously sent to data processing module for the data upload unit and does follow-up processing.
This utility model embodiment also correspondence provides a kind of signal processing system that intracranial auterblood signal is handled, signal processing system has first communication interface and second communication interface, and described signal processing system comprises sampling module, data processing module and data disaply moudle.This system can be by with the color ultrasound module of modular construction with hang over outside the cranium module and realize on this signal processing system detecting simultaneously through the detection of the detection of cranium signal or color ultrasound signal or through cranium signal and color ultrasound signal.Because the method for structure, function and this signal processing system deal with data of this signal processing system is above being described in detail, no longer describe in detail this moment.
At present, the ultrasound detection of cerebrovascular disease mainly contains aspects such as monitoring in routine examination, the other detection of bed, the art, large-scale crowd examination and uses, below the intracranial auterblood signal detection system that provides with this utility model embodiment, the beneficial effect that can obtain when using in these fields respectively is elaborated:
For routine examination: need dispose color ultrasound and through cranium two complete equipments in the routine examination of hospital at present, two sick beds.After patient finishes a detection, change to another examinating couch and get on to accept another detection.And the color ultrasound of most of hospital and through cranium not section office, more not in a room.Because patients with cerebrovascular disease is mostly old handicapped, need family members or nurse to assist in, change examinating couch and detect very inconvenience of place, it is low to finish the efficient of once checking, and the supporting optional equipment that brings of two complete equipments, place and personnel cost are also very high.
By adopting intracranial auterblood signal detection system or plug-in signal processing system through cranium module and color ultrasound module, only need an operation doctor, an equipment, a sick bed just can finish the detection of outer all the main tremulous pulsies of intracranial, patient no longer needs the mobile bed that changes, improve checking efficiency, reduced equipment, personnel and venue cost.
Detect for bed is other: at present the serious symptom patients with cerebrovascular disease of being in hospital is carried out ultrasound detection, need timesharing respectively to push away two equipment by sick bed, connect power supply, start then, the time of device power-up doubles, and operates very trouble.
By adopting intracranial auterblood signal detection system or plug-in signal processing system through cranium module and color ultrasound module, only need an equipment, once connect power supply, once start just can be finished the intracranial detection of all main tremulous pulsies outward, has increased substantially checking efficiency.
To monitoring in the Rhizoma Atractylodis Macrocephalae: strip off in carotid artery intima in the operation processs such as art, not only need the tremulous pulse in patient's the brain to be guarded with the transcranial doppler probe, also need at any time to go to observe the carotid situation of patient with the linear array probe of color ultrasound, two equipment of these job demand are finished at present.Because the other space of bed is very limited in the art, two device locations need frequently move, and have brought inconvenience to operation.
By adopting intracranial auterblood signal detection system or plug-in signal processing system through cranium module and color ultrasound module, only need an equipment just can finish above-mentioned all working, save the space significantly and reduced the complicated operation degree.
Ministry of Public Health had started " apoplexy examination and prevention and control engineering " in 2009, plan set up in the whole nation over one hundred family provincial and partly, the examination of city-level apoplexy with the control base, and forming the apoplexy examination prevention and control network of national, provincial, districts and cities, county and community, the main screening of this project detects carotid artery and entocranial artery exactly.Because ground, city, county and community-level medical institutions all are restricted on personnel, place and fund, buy color ultrasound if desired respectively and through cranium, and have enough places and personnel to carry out the very big difficulty of prevention and control engineering existence.
By adopting intracranial auterblood signal detection system or plug-in signal processing system through cranium module and color ultrasound module, can reduce the cost of procuring equipment, reduce requirement to place and personnel, for providing energetically carrying out of basic medical unit, project supports.
In sum, the beneficial effects of the utility model are: 1, the intracranial auterblood signal detection system that provides of this utility model embodiment, only need use an equipment just can finish to the detection of cerebrovascular, the patient need not change inspection chamber or sick bed, has made things convenient for doctor and patient; And equipment and supporting sick bed occupation space have been saved; Can in the monitoring intracranial vessel, detect positions such as cranium arteria carotis externa, realize synchronous detecting.
2, the intracranial auterblood signal detection system that provides of this utility model embodiment can be in the monitoring intracranial vessel, detect positions such as cranium arteria carotis externa, realize synchronous detecting, the record of the outer blood vessel of intracranial, the blood flow information of the outer different parts blood vessel of playback intracranial, can in a case report, contain vascular flow information outside the complete intracranial.
3, the intracranial auterblood signal detection system that provides of this utility model embodiment can be finished the seamless switching from conventional sense to monitoring preferably.When detecting with conventional linear array probe when finding cervical region vascular lesion (as carotid artery stenosis or unstable spot is arranged), be further to observe PD, can enable long-range monitoring pattern.
4, the intracranial auterblood signal detection system that provides of this utility model embodiment is exclusively used in the detection of cerebrovascular and peripheral blood vessel, and the product clinical application is clear and definite, with strong points.
5, the intracranial auterblood signal detection system that provides of this utility model embodiment can save in the color doppler ultrasonography circuit hardware and software and intracranial, cervical region and peripheral blood vessel detect irrelevant circuit and software (as abdominal part detect software, department of obstetrics and gynecology detect software and related probes interface etc.), its acquisition cost adds the acquisition cost of a transcranial doppler far below a whole body color ultrasound (not having special-purpose blood vessel color ultrasound at present) of homogenous quantities, remarkable in economical benefits does not have the function of unnecessary waste.
Should be understood that; this utility model is to through the detection of the detection of cranium signal or color ultrasound signal or more specific to the description through the synchronous detecting of cranium signal and color ultrasound signal; but can not therefore be interpreted as restriction to scope of patent protection of the present utility model; for those of ordinary skills; can be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of this utility model.
Claims (5)
1. intracranial auterblood signal detection system, comprise signal acquiring system, be used to the signal processing system transmitting first communication interface and second communication interface of data and be used for the signal that signal acquiring system collects is processed and displayed, it is characterized in that
Described signal acquiring system comprises:
Be used to obtain popping one's head in of transcranial doppler signal through cranium;
Be used to obtain the color ultrasound probe of color Doppler blood flow signal;
Be used to receive the transcranial doppler signal, and to this transcranial doppler signal amplify with analog-to-digital conversion process through the cranium module;
Be used to receive the color Doppler blood flow signal, and to this color Doppler blood flow signal amplifies, analog digital conversion and digital filtering are handled color ultrasound module;
Described through cranium probe be connected through the cranium module, pass through first communication interface through the cranium module and link to each other with signal processing system; Described color ultrasound probe is connected with the color ultrasound module, and the color ultrasound module links to each other with signal processing system by second communication interface;
Described signal processing system comprises:
Be used to read the transcranial doppler signal data after the analog-to-digital conversion process or read color Doppler blood flow signal data after digital filtering is handled, this transcranial doppler signal data or color Doppler blood flow signal data buffer memory are exported to the sampling module of data processing module;
Be used for the data of sampling module output are carried out post processing, and the post processing data sent to the data processing module of data disaply moudle;
Be used to show the data disaply moudle of described post processing data;
Described sampling module is connected with data processing module respectively with data disaply moudle.
2. intracranial auterblood signal detection system according to claim 1 is characterized in that, describedly comprises through the cranium module:
Be used for the transcranial doppler signal is carried out first amplifying unit of processing and amplifying;
Be used for and carry out first AD conversion unit that analog digital conversion obtains the transcranial doppler signal data to the transcranial doppler signal after amplifying;
Described first amplifying unit is connected with first AD conversion unit respectively with through the cranium probe.
3. intracranial auterblood signal detection system according to claim 1 is characterized in that, described color ultrasound module comprises:
Be used for the color Doppler blood flow signal is carried out second amplifying unit of processing and amplifying;
Be used for the color Doppler blood flow signal after amplifying is carried out second AD conversion unit that analog digital conversion obtains color Doppler blood flow signal data;
Be used for described color Doppler blood flow signal data are carried out the digital filtering unit that high low-pass digital filter is handled;
Described color ultrasound probe, second amplifying unit, second AD conversion unit are connected successively with the digital filtering unit.
4. intracranial auterblood signal detection system according to claim 1 and 2 is characterized in that, the described single array element low frequency pulse wave probe that comprises 1.0MHz to 2.0MHz through the cranium probe.
5. according to claim 1 or 3 described intracranial auterblood signal detection systems, it is characterized in that described color ultrasound probe comprises linear array probe and convex array probe, described linear array probe is connected with the color ultrasound module respectively with convex array probe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120144370 CN202078330U (en) | 2011-05-09 | 2011-05-09 | Intracranial and extracranial blooding signal detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120144370 CN202078330U (en) | 2011-05-09 | 2011-05-09 | Intracranial and extracranial blooding signal detection system |
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| CN202078330U true CN202078330U (en) | 2011-12-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274049A (en) * | 2011-05-09 | 2011-12-14 | 深圳市德力凯电子有限公司 | Intracranial and extracranial blood flow signal detection system, signal display method and signal processing system |
| CN105030278A (en) * | 2015-05-21 | 2015-11-11 | 深圳市德力凯电子有限公司 | Method and system for automatically scanning intracranial cerebral vessels |
| CN109770946A (en) * | 2019-03-22 | 2019-05-21 | 苏州大学附属第一医院 | A kind of miniature probe is applied to the method for assessment haemodynamics in anastomosis of blood vessel |
-
2011
- 2011-05-09 CN CN 201120144370 patent/CN202078330U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274049A (en) * | 2011-05-09 | 2011-12-14 | 深圳市德力凯电子有限公司 | Intracranial and extracranial blood flow signal detection system, signal display method and signal processing system |
| CN105030278A (en) * | 2015-05-21 | 2015-11-11 | 深圳市德力凯电子有限公司 | Method and system for automatically scanning intracranial cerebral vessels |
| CN109770946A (en) * | 2019-03-22 | 2019-05-21 | 苏州大学附属第一医院 | A kind of miniature probe is applied to the method for assessment haemodynamics in anastomosis of blood vessel |
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Address after: Shenzhen City, Nanshan District Province on 518054 Guangdong Nanyou Cheonan industrial estate Liang Road Building 8 6C Patentee after: SHENZHEN DELICA MEDICAL EQUIPMENT CO., LTD. Address before: Shenzhen City, Nanshan District Province on 518054 Guangdong Nanyou Cheonan industrial estate Liang Road Building 8 6C Patentee before: Shenzhen Ddlicare Electronics Co., Ltd. |
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Address after: 518054 6 building, second industrial zone, Guan Long Cun, Xili street, Nanshan District, Shenzhen, Guangdong, China. 10 Patentee after: SHENZHEN DELICA MEDICAL EQUIPMENT CO., LTD. Address before: 518054 8 6C, South Oil Tin Industrial Estate, Nanshan District, Shenzhen, Guangdong. Patentee before: SHENZHEN DELICA MEDICAL EQUIPMENT CO., LTD. |
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