CN101199412B - DIP type multi-parameter ward measuring module - Google Patents
DIP type multi-parameter ward measuring module Download PDFInfo
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- CN101199412B CN101199412B CN2006101574954A CN200610157495A CN101199412B CN 101199412 B CN101199412 B CN 101199412B CN 2006101574954 A CN2006101574954 A CN 2006101574954A CN 200610157495 A CN200610157495 A CN 200610157495A CN 101199412 B CN101199412 B CN 101199412B
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Abstract
The invention discloses a plug-in type multi-parameter monitoring and measuring module, comprising a crust, at least two sensor interfaces arranged on the crust to connect physiological parameter sensors, an outward communication and electrical source interface arranged on the crust and used to communicate with the host and access power from the host, and at least two physiological parameter measuring circuits, a front processor and a host processor which are arranged inside the crust; the physiological parameter measuring circuits are electrically connected respectively with the sensor interfaces, with the output terminals coupled with the front processor; the communication port of the front processor is coupled with the host processor which is electrically connected with the outward communication and electrical source interface. The invention simplifies circuitry and is high in integration degree and reduces hardware cost and is provided with a separate memorizer and a separate electrical source; a patient does not need to input the information again when to change a monitor and the invention can work separately for a short while off the host.
Description
[technical field]
The present invention relates to a kind of DIP type multi-parameter ward measuring module that is applicable to medical field, monitoring physiological parameter, the main frame that this module can be connected to various ways such as monitor, electrocardiograph, diasonograph, computer by various interface constitutes custodial care facility.
[background technology]
Existing measuring multiple parameters monitor, its internal structure adopt measurement parameter to divide usually, and the measuring circuit of each parameter all comprises: analog signal processing circuit, analog digital conversion, microprocessor, and the interface that carries out communication with host computer.This has just caused: on the one hand, analog to digital conversion circuit repeats, and a plurality of processor resources are idle, increased hardware cost, and maintenance is big; On the other hand, existing monitor volume is bigger, when removing patient, can not move thereupon; If behind the removing patient, need to change monitor, need reset patient related information, and the lost part historical data.But so need a kind of Offhost, plug-in type physiological parameter monitoring measurement module.And existing plug-in type physiological parameter monitoring measurement module function is independent, integrated level is poor, the hardware cost height, and after these modules extract main frame, i.e. outage can not self-contained continuous work.
[summary of the invention]
The main technical problem to be solved in the present invention be overcome the high and volume of existing monitor hardware cost greatly, the defective of being inconvenient to move, a kind of DIP type multi-parameter ward measuring module is provided, simplify circuit design, the integrated level height, reduce hardware cost, behind removing patient, do not need to change monitor, only need to move this DIP type multi-parameter ward measuring module and get final product.
Another technical problem that the present invention will solve is not need to re-enter patient information after DIP type multi-parameter ward measuring module is moved with patient.
The another technical problem that the present invention will solve is that DIP type multi-parameter ward measuring module is not cut off the power supply behind Offhost, can continuous operation, can not lose patient information because of the unexpected outage of main frame.
For achieving the above object, the invention provides a kind of DIP type multi-parameter ward measuring module, comprise shell, be positioned at least two sensor interfaces that are used to connect physiological parameter sensors on the shell, be positioned on the shell, be used for carrying out communication and from the external communication and the power interface of main frame power taking with main frame, place at least two physiological parameter measurement circuit in the shell, FEP and primary processor, described physiological parameter measurement circuit is electrically connected with corresponding sensor interface respectively, its outfan is coupled to FEP, described FEP is used to finish the sampling and the analog digital conversion of physiological parameter measurement circuit output signal, and output control signal control survey process, the communication port of described FEP is coupled to primary processor, described primary processor is with externally communication and power interface are electrically connected, described primary processor is used to finish the calculating of physiological parameter, and by external communication and power interface CALCULATION OF PARAMETERS result and waveform is sent to main frame.
Also further comprise placing the memorizer that is used for store historical data in the shell, described memorizer is connected with primary processor.
Also comprise and place in the shell, be used for the insulating power supply of front-end processor power supply and be connected the communication port of FEP and the isolation communication interface between the primary processor.
Of the present invention further the improvement is: also comprise the battery and the Power Management Unit that place in the shell, described Power Management Unit is connected with primary processor, described Power Management Unit is used for switching to battery when monitoring the main frame supply voltage less than first setting value powers to primary processor, switches to main frame power supply and main control system power supply to battery charge when monitoring the main frame supply voltage greater than first setting value.
Another improvement of the present invention is: the sampling interval T of each parameter is T=N*t in the described FEP, and wherein, N is a positive integer, and t is less than or equal to the minimum sampling interval in sampling interval of all parameters.
Also further comprise the display and the button that leak outside in case surface, described display and button are electrically connected with primary processor respectively.
Also further comprise alarm unit, described alarm unit and primary processor are electrically connected, and described alarm unit is used for reporting to the police during less than second setting value or physiological parameter is reported to the police when unusual at cell voltage.
The invention has the beneficial effects as follows: 1) integrated level height of the present invention, and with two processor reasonable distribution, the sampling of a plurality of physiological parameters and control adopt same processor to finish, and have made full use of processor resource; A plurality of CALCULATION OF PARAMETERS and the shared high-performance processor of analysis, this processor does not need to handle sampling, operations such as control, but be absorbed in the operation algorithm, the processor resource utilization rate improves greatly.Thereby reduced the system hardware cost, reduced the volume of module.And because the present invention is the plug-in type module, but Offhost behind removing patient, this DIP type multi-parameter ward measuring module extracted to move and gets final product with patient, so do not need to reset patient related information.2) integrated memory in the module is supported history data store, therefore, uses a parameter module as long as the assurance patient fixes, and patient no longer needs to re-enter patient information when changing monitor.Under the cooperation of monitor software, can realize the playback of historical data, functions such as merging.3) integrated battery in the parameter module can be tolerated monitor short time power failure, perhaps misplugs and pulls out, and patient bed-changing, the use under the situation such as moves, but the Offhost short time works alone.And under the normal power supply situation, parameter module is automatically to battery charge.4) since module integrated LCD display, buzzer etc., module can still show patient parameter breaking away under the situation of monitor, sends sound and light alarm.
Feature of the present invention and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the module outside drawing of an embodiment of the present invention;
Fig. 2 is the circuit block diagram of an embodiment of the present invention;
Fig. 3 is the circuit block diagram of the another kind of embodiment of the present invention;
Fig. 4 is the flow chart of a kind of embodiment of FEP of the present invention;
Fig. 5 is the software function structure chart of a kind of embodiment of primary processor of the present invention.
[specific embodiment]
A kind of embodiment of embodiment one, integrated parameter module of the present invention as shown in Figure 1, has independently shell 1, has sensor interface district 2 on the housing face-plate, wherein integrated a plurality of sensor interfaces, be used for being connected with each outside physiological parameter sensors, also comprise small LCD display area 3 on the housing face-plate, button and LED zone of alarm 4 etc.Be used for carrying out communication and from the external communication and the power interface (not shown) of main frame power taking with main frame.Module can be inserted the plug-in type monitor main frame, as the part of monitor, also can be connected with main frame by cable, and module is as an external accessory of monitor.
The internal circuit of integrated parameter module places in the shell, as shown in Figure 2, comprise at least two physiological parameter measurement circuit, FEP and primary processors, described physiological parameter measurement circuit can be selected from electrocardio circuit, respiratory circuit, body temperature circuit, blood oxygen circuit, non-invasive blood pressure circuit, skin ulcer blood pressure circuit etc. is arranged, these parameter monitoring circuit are electrically connected with corresponding sensor interface respectively, its outfan is coupled to FEP, the communication port of described FEP is coupled to primary processor, and described primary processor is with externally communication and power interface are electrically connected.Various physiological parameter measurement circuit can adopt circuit of the prior art, FEP is finished the sampling and the analog digital conversion of parameter measurement circuit output signal, and output control signal control survey process, these parameters include but not limited to: electrocardio, breathe, body temperature, blood oxygen, non-invasive blood pressure and invasive blood pressure parameter.FEP can adopt single-chip microcomputer or other semiconductor device to realize, for example can select the LPC2136 of PHLIPS company for use, and perhaps the mixed signal single-chip microcomputers such as ADuC7021 of ADI also can adopt ASIC or FPGA to realize.FEP is powered by insulating power supply, after the data that sampling obtains are packed through simple process, is sent to primary processor by isolating communication interface.The reason that FEP is powered by insulating power supply is the DC/DC power supply by transformer isolation, played the effect of isolating patient and power supply unit, main purpose is: 1, isolate the patient, pass through isolating transformer, with the floating ground of applying portion, make patient's leakage current enough little; The integrated circuit board and the device (guaranteeing) of intermediate circuits such as voltage when 2, preventing the application of defibrillation or electric knife or energy affect master control borad with creep age distance and electric clearance.Primary processor is finished the calculating of physiological parameter, and by external communication and power interface CALCULATION OF PARAMETERS result and waveform is sent to main frame, and externally communication and power interface can be: one or its combination in the interfaces such as RS232, USB, infrared, bluetooth.Main frame can be monitor, electrocardiograph, diasonograph, computer etc.And the software that cooperates is installed, just can be formed a custodial care facility.Main frame can also be a communication apparatus, mobile phone for example, and integrated parameter module sends to data on the mobile phone of supporting bluetooth communication by blue tooth interface, realizes the remote transmission of data.
Non-invasive blood pressure is measured needed pump valve driving and is finished by primary processor.FEP can be considered its peripheral analog-digital converter for primary processor, primary processor direct-driven pump valve will be convenient to the real-time control of non-invasive blood pressure more.The non-invasive blood pressure metering system adopts succusion, promptly utilize and be bundled in cuff on the arm, and the propagation of pulsing in to cuff inflation by inflator pump with the blocking-up blood vessel, again with linear (3～5mmHg/s) or ladder venting (6～15mmHg/ ladder) form progressively to cuff deflation, and by means of bridge circuit pressure transducer that is communicated in gas circuit and corresponding the amplification, filter circuit, analog-digital converter, microprocessor control etc. will convert digital signal to by fluctuating signal and the pressure signal that cuff is delivered in the gas circuit, further to this pulse wave, cuff is compressed into the suitable date processing of row, obtain comprising the serial pulse wave and the corresponding cuff pressure of pulse wave conversion trend, utilize the cuff at maximum pulse place to press and just can calculate needed systolic pressure corresponding to mean pressure and some empirical proportionality coefficient algorithms of experimenter, diastolic pressure, result such as mean pressure and pulse frequency.In this process, primary processor is to the analysis of pulse signal, and handling and charge and discharge gas is a process that hockets, so the two is all finished and will be helped real-time control more by primary processor.
Embodiment two, also further comprise the memorizer that places in the shell on the basis of embodiment one, as shown in Figure 2, described memorizer is connected with primary processor.Memorizer comprises RAM and flash memorizer (being flash memory).Can further include alarm unit, alarm unit is connected with primary processor, and alarm unit comprises buzzer and LED.The flash memorizer is used for the storage of historical data, by the monitor main frame can consult, the removing module historical data, and merge with the host computer historical data; External buzzer and LED finish sound and light alarm.Can further include the display and the button that leak outside in case surface, described display and button are electrically connected with primary processor respectively, display display parameters numerical value and work state information.Since integrated LCD display, buzzer etc., and module can still show patient parameter under the situation that breaks away from monitor, and sends sound and light alarm when abnormal parameters.
Embodiment three, on embodiment one or two basis, also further comprise battery and the Power Management Unit that places in the shell, as shown in Figure 3, battery is a chargeable battery, described Power Management Unit is connected with primary processor, described Power Management Unit is used for switching to battery when monitoring the main frame supply voltage less than first setting value powers to primary processor, switches to main frame power supply and main control system power supply to battery charge when monitoring the main frame supply voltage greater than first setting value.The technology of Power Management Unit has been mature technology, and those skilled in the art can select needed Power Management Unit as requested.When module connects monitor by monitor to module for power supply, and the battery in the module charges automatically, when module and monitor power interruptions, module automatically switches to battery powered.And alarm unit can also be monitored the voltage of battery, sends sound and light alarm when the voltage of battery sets value less than second.If comprise flash memorizer device in the module, when patient moves, when changing monitor, by the internal cell power supply, can realize uninterrupted measurement of module and store historical data.After module reconnected to monitor, under the cooperation of monitor software, can realize the playback of historical data, and merge historical data etc. with monitor.
In the foregoing description, the software of FEP mainly comprises controlling of sampling program and communication interface program two parts.For each parameter being carried out analog-to-digital task mean allocation, and reduce the use of intervalometer, the sampling interval T of each parameter can be adopted following formula calculating:
T＝N*t
Wherein, N is a positive integer, and t is less than or equal to the minimum sampling interval in sampling interval of all parameters.For example t is set to 2ms, and the sampling interval of all parameters is the integral multiple of 2ms, and for example electrocardio 2ms breathes 2ms, body temperature 500ms, and blood oxygen 8ms, noinvasive press blood oxygen 12ms, invasive blood pressure 12ms.Just can use 1 intervalometer to finish all sampling timing to the sampling of argument section like this, simplify design.
The sampling flow process of FEP as shown in Figure 4.
The communication interface program mainly realizes the interactive function with primary processor: upload sampled result, receive primary processor order is set.
Primary processor is mainly finished and is comprised employing multitasked algorithm program, and its software function structure comprises communication interface program and peripheral components driver, system supervisor as shown in Figure 5.
The task that the communication interface program is responsible for finishing: finish communication work with FEP, receive sampled data, and front-end processor sends related command; Also be responsible in addition realizing communication, comprise that parameter waveform, result of calculation uploads with main frame, and receive, order that the response main frame sends.
Algorithm routine is realized calculating, the analytic function of each physiological parameter.
System supervisor: realize the modification of patient information, hold function; Finish flash memory read write operation, realize the storage of historical data, functions such as exchange; Sound and light alarm is sent in the management of alarm limit in real time; Show that the real-time parameter value is to LCD display.
Peripheral components driver: realize the driving of each peripheral components, comprise the driving of flash memorizer, LCD display, buzzer etc.
Owing to have independently power supply, memorizer, display and alarm unit, present embodiment can either use as a module of monitor, can break away from the monitor short time again independently works, and can also form monitor with some equipment with display in the hospital and use.Parameter module can also be by these equipment online, down loading updating module software.Parameter module can also be stored the needed software of these equipment, by uploading these softwares to the connection on the main frame realization software.
Integrated module combines (as mobile phone, landline telephone) by communication interface (as bluetooth, infrared interface) with communication apparatus, realize the remote transmission of measurement result easily, and by these communication apparatus down loading updating module softwares.
If integrated module of the present invention does not connect display device and button, can be fixed on monitor inside and do the use of General Parameters module.
In sum, integrated parameter module major advantage of the present invention is the integrated level height, includes algorithm, directly uploads parameter waveform and result of calculation, module reuse degree height, and integrated workload is little; Integrated parameter module setting battery of the present invention can non-stop run, meets patient and transports requirement; Integrated module possesses the history data store function, can store patient information, and changing monitor in the transport process does not need to reset, and historical data can be inquired about, be merged; Integrated parameter module of the present invention can connect and compose monitor with plurality of devices by certain interface, can also be connected with communication apparatus, realizes the remote data transmission.
Claims (10)
1. DIP type multi-parameter ward measuring module, it is characterized in that comprising: shell, be positioned at least two sensor interfaces that are used to connect physiological parameter sensors on the shell, be positioned on the shell, be used for carrying out communication and from the external communication and the power interface of main frame power taking with main frame, place at least two physiological parameter measurement circuit in the shell, FEP and primary processor, described physiological parameter measurement circuit is electrically connected with corresponding sensor interface respectively, its outfan is coupled to FEP, described FEP is used to finish the sampling and the analog digital conversion of physiological parameter measurement circuit output signal, and output control signal control survey process, the communication port of described FEP is coupled to primary processor, described primary processor is with externally communication and power interface are electrically connected, described primary processor is used to finish the calculating of physiological parameter, and by external communication and power interface CALCULATION OF PARAMETERS result and waveform is sent to main frame.
2. DIP type multi-parameter ward measuring module as claimed in claim 1 is characterized in that: also comprise placing the memorizer that is used for store historical data in the shell, described memorizer is connected with primary processor.
3. DIP type multi-parameter ward measuring module as claimed in claim 2 is characterized in that: also comprise placing in the shell, be used for the insulating power supply of front-end processor power supply and be connected the communication port of FEP and the isolation communication interface between the primary processor.
4. as each described DIP type multi-parameter ward measuring module in the claim 1 to 3, it is characterized in that: also comprise the battery and the Power Management Unit that place in the shell, described Power Management Unit is connected with primary processor, described Power Management Unit is used for switching to battery when monitoring the main frame supply voltage less than first setting value powers to primary processor, switches to main frame power supply and main control system power supply to battery charge when monitoring the main frame supply voltage greater than first setting value.
5. DIP type multi-parameter ward measuring module as claimed in claim 4, it is characterized in that: the sampling interval T of each parameter is T=N*t in the described FEP, wherein, N is a positive integer, and t is less than or equal to the minimum sampling interval in sampling interval of all parameters.
6. DIP type multi-parameter ward measuring module as claimed in claim 4 is characterized in that: also comprise the display and the button that leak outside in case surface, described display and button are electrically connected with primary processor respectively.
7. DIP type multi-parameter ward measuring module as claimed in claim 6, it is characterized in that: also comprise alarm unit, described alarm unit and primary processor are electrically connected, and described alarm unit is used for reporting to the police during less than second setting value or physiological parameter is reported to the police when unusual at cell voltage.
8. DIP type multi-parameter ward measuring module as claimed in claim 4 is characterized in that: described external communication and power interface are selected from one or more in RS232 interface, USB interface, infrared interface and the blue tooth interface.
9. DIP type multi-parameter ward measuring module as claimed in claim 2 is characterized in that: also comprise the display and the button that leak outside in case surface, described display and button are electrically connected with primary processor respectively.
10. DIP type multi-parameter ward measuring module as claimed in claim 9, it is characterized in that: also comprise alarm unit, described alarm unit and primary processor are electrically connected, and described alarm unit is used for reporting to the police during less than second setting value or physiological parameter is reported to the police when unusual at cell voltage.
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Effective date of registration: 20180620 Address after: 518057 the 1-4 floor of MINDRAY building, science and technology south twelve Road, Nanshan District high tech Industrial Park, Shenzhen, Guangdong. Co-patentee after: Shenzhen MINDRAY Technology Co., Ltd. Patentee after: Shenzhen Mairui Biotherapeutic Electronic Co., Ltd. Address before: 518057 MINDRAY science and technology south twelve road MINDRAY high tech Industrial Park, Shenzhen, Guangdong Patentee before: Shenzhen Mairui Biotherapeutic Electronic Co., Ltd. |