CN108742589A - A kind of portable brain spinal fluid guiding device - Google Patents
A kind of portable brain spinal fluid guiding device Download PDFInfo
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- CN108742589A CN108742589A CN201810689185.XA CN201810689185A CN108742589A CN 108742589 A CN108742589 A CN 108742589A CN 201810689185 A CN201810689185 A CN 201810689185A CN 108742589 A CN108742589 A CN 108742589A
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- circuit
- pressure
- peristaltic pump
- acquisition unit
- motor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
- A61B5/031—Intracranial pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7405—Details of notification to user or communication with user or patient ; user input means using sound
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
-
- A61M1/0023—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
- A61M1/743—Suction control by changing the cross-section of the line, e.g. flow regulating valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0464—Cerebrospinal fluid
Abstract
A kind of portable brain spinal fluid guiding device of the present invention, including diversion pipe, pressure acquisition unit, peristaltic pump, host and diversion bag；Wherein, pressure acquisition unit includes pressure acquisition unit shell, sensor array and landmark identification circuit；Main equipment includes power module, battery pack, battery, motor-drive circuit, core board, touch display screen etc.；Peristaltic pump includes motor and peristaltic pump head etc.；Pressure acquisition unit is connect with peristaltic pump by connector；One end of diversion pipe is inserted into inside the ventricles of the brain, and pressure acquisition unit carries out pressure acquisition, and then return data to peristaltic pump is back to core board again, and core board carries out processing analysis and makes relevant operation；Core board will be sent to motor-drive circuit under order by the second, first wireless transceiver circuit, and motor-drive circuit controls motor and drives Peristaltic pump head rotation.The present invention not only can be used for controlling the water conservancy diversion to body fluid, but also the pressure of human body fluid can be accurately measured by pressure sensor.
Description
Technical field
The invention belongs to medical instruments fields, and in particular to a kind of portable brain spinal fluid guiding device.
Background technology
Water conservancy diversion art is a kind for the treatment of means of surgery, is the purulence, blood or other liquid that will be gathered between tissue or in body cavity
Body water conservancy diversion is in the technology in external or splanchnocoel.Surgery water conservancy diversion does not include that the liquid gathered in tissue or in body cavity is led to merely
It is in vitro outer water conservancy diversion, such as Abscess incision, intestines stoma, abdominal cavity water conservancy diversion, thoracic cavity water conservancy diversion, but also includes interior water conservancy diversion, that is, passes through
Change its course or shunt and flows through other hollow organ to achieve the purpose that water conservancy diversion, such as the interior water conservancy diversion of biliary tract, pancreatic cyst
Art.
There are many surgery water conservancy diversion type clinically applied, and some is used for urethral catheterization, and some is used for wound, thoracic cavity, encephalocoele, stomach
Enteron aisle, biliary tract etc..Surgery water conservancy diversion is prevented in order that the purulence, blood, liquid that are gathered between tissue or in body cavity are directed in vitro
Only postoperative infection and influence wound healing.
Intracranial pressure (ICP) refers to cranial cavity content to generated pressure, also known as cerebral on cranial cavity wall.Due to being present in
Cavum subarachnoidale and intracisternal cerebrospinal fluid are between cranial cavity wall and brain tissue, and under arachnoid in the ventricles of the brain and spinal cavity
Chamber communicates, so the hydrostatic pressing of cerebrospinal fluid can represent intracranial pressure, usually using cranium brain Ridge fluid pressure when lateral position as representative.It wears
Cisterna magna or telocoele are pierced, with the reading that pressure-measuring pipe or pressure gauge are measured, as clinical intracranial pressure.This pressure
It is close with the cerebrospinal pressure measured by lateral position lumbar puncture, therefore all with latter pressure be clinically representative.Normal encephalic
Pressure is grown up in lateral position as 0.7~2.0kPa (5~15mmHg), and children are 0.5~1.0kPa (3.5~7.5mmHg),
The peak of telocoele wants high when this pressure ratio horizontal position.When seat waist wear pressure up to 3.3~4.0kPa (25~
30mmHg)。
Subarachnoid hemorrhage (subarachnoid hemorrhage, SAH) is neurosurgery common disease.Early stage is controlled
Treat has important clinical value to SAH, clinically suggests that suitable method of river diversion is selected to carry out operative treatment as early as possible.In recent years,
Lateral cerebral ventricle puncture is combined body fluid water conservancy diversion art and is increased by clinical application report, can be used for treating SAH, has easy to operate, safety
High, the advantages that working well.The monitoring of intracranial pressure is clinically of great significance simultaneously：Clinically, monitoring intracranial pressure technology
It is applied in the treatment of the diseases such as craniocerebral trauma, hypertensive cerebral hemorrhage, intracranial tumors, cerebrovascular disease, especially in craniocerebral trauma
Application in patient has accumulated a large amount of clinical data.Largely researches show that monitoring intracranial pressures can successive reaction patient's encephalic
Buckling, it is important having to the judgement of the encephalic condition of the injury and Brain edema severity and guiding treatment, assessment prognosis etc.
Directive significance.It dynamic knowledge intracranial pressure can change in real time, be conducive to disease observation, find that increased intracranial pressure is located early early
Reason；Intracranial pressure monitoring is the important evidence for judging cerebral injury in patients severity and forecasting consequence；Help calculates and maintains cranium brain
Perfusion pressure；The outer water conservancy diversion of the ventricles of the brain, rationally dehydration play good intracranial pressure control.
Monitoring intracranial pressure is broadly divided into invasive intracranial pressure detection and Noninvasive intracranial pressure monitoring, invasive detection and mainly has at present
In lumbar puncture detection, the ventricles of the brain in detection, the interior detection of brain parenchym, cavum subarachnoidale detection, Epidural cavity detection, nerve endoscope art
Detection, telemetering monitoring intracranial pressure technology etc.；Non-invasive monitoring mainly has clinical manifestation and impression inspection, vagina nervi optici diameter prison
Survey, retinal venous pressure or arterial blood pressure monitoring, TCD monitoring, flash visual evoked potential detection, periosteum displacement
Monitoring, bregma monitoring etc..
As seen from the above, many need to body fluid progress water conservancy diversion and monitoring pressure can be encountered in clinical application
Situation, on domestic market it is opposite at present lack human body fluid is detected and the device of auto-guiding function, and equipment is often
Volume and weight is larger, complicated for operation.
Invention content
The purpose of the present invention is to provide a kind of portable brain spinal fluid guiding device, both can be used for controlling to body fluid
Water conservancy diversion, have the pressure that human body fluid can be accurately measured by pressure sensor, and according to pressure measurements to current disease
The situation of people is analyzed and is judged, and is diagnosed to the case where patient according to the result of analysis.
The present invention adopts the following technical scheme that realize：
A kind of portable brain spinal fluid guiding device, including diversion pipe, pressure acquisition unit, peristaltic pump, diversion bag and master
Machine；Wherein,
Pressure acquisition unit includes pressure acquisition unit shell and is arranged at pressure acquisition unit shell side cinclides
Sensor array and landmark identification circuit for being powered to sensor array；Peristaltic pump includes wriggling pump case, electricity
Machine Peristaltic pump head, battery pack, connector, the first wireless transceiver circuit, motor-drive circuit and battery set management circuit, it is main
Machine includes the second wireless transceiver circuit, power module, battery management, signal conditioning circuit, power circuit, battery and core board；
Pressure acquisition unit is connect by connector with peristaltic pump；Battery pack is used to power for peristaltic pump, and passes through battery
Group management circuit control；Second wireless transceiver circuit is used to carry out host and wriggling with the first wireless transceiver circuit cooperating
Data communication between pump；Power module is used to convert the 220VAC of external power cord to the voltage that device can use；
Battery management circuit and signal conditioning circuit are used to the signal processing that peristaltic pump returns being transmitted to core board, battery again later
For the clock power supply to core board；Power circuit is used to generate different voltage values for carrying out the voltage of power module
Decompression is handled, and is supplied to the circuit components of signal conditioning circuit that it is made to work under the best voltage range of performance, signal tune
Reason circuit is handled the signal of pressure acquisition unit under the power supply of power circuit；
When work, the required inside cavity for carrying out pressure detecting or water conservancy diversion operation is inserted into one end of diversion pipe, next
One section of diversion pipe is installed together with pressure acquisition unit, and next one section of diversion pipe is installed with the peristaltic pump for water conservancy diversion
Together, the end of last diversion pipe links together with diversion bag, which carries out water conservancy diversion and pressure survey for assisting
Amount；Array of pressure sensors inside the pressure acquisition unit of pressure measurement is carried out for installing cooperating with diversion pipe
It is contacted with cerebrospinal fluid and carries out pressure acquisition, the first wireless receiving and dispatching electricity is then passed through by connector return data to peristaltic pump again
Road and the second wireless transceiver circuit are back to host, and signal conditioning circuit handles the signal of acquisition back, then returns again
Core board is reached, core board carries out processing analysis to receiving the data come, then judges and make to artificial situation according to result again
Go out relevant operation；Order is issued to peristaltic pump by core board when needing to carry out water conservancy diversion operation, and peristaltic pump again sends out order
Motor-drive circuit is given, motor-drive circuit generates the pulse that can control motor rotation, when motor drives Peristaltic pump head
When rotation, the liquid discharge in extruding diversion pipe is carried out, whole device realizes the Real Time Monitoring to pressure and leads
Flow function.
The present invention, which further improves, to be, diversion pipe uses silica gel hose.
The present invention, which further improves, to be, host further includes USB interface, alarm and touch display screen, touches display
Screen is for real-time display relevant information and carries out human-computer interaction.
The present invention, which further improves, to be, peristaltic pump further includes approaching switch, and Peristaltic pump head is mounted on outside peristaltic pump
At cylindrical grooves in shell, motor is mounted on the lower section of wriggling pump case, and the shaft of motor passes through peristaltic pump outer casing bottom
Hole is inserted into and is fixed on together by screw hole with Peristaltic pump head, and diversion pipe is wrapped in above Peristaltic pump head, approaches
Switch the rotating speed for measuring peristaltic pump.
The present invention, which further improves, to be, core board is embedded computer processor and its peripheral circuit component.
The present invention, which further improves, to be, the quantity of sensor in the array of pressure sensors in pressure acquisition unit
For two or more.
The present invention, which further improves, to be, power module uses 24VDC regulated power supplies, ensures the electric energy of whole device
Supply；Battery pack and battery use lithium ion/lithium polymer battery, can carry out dismounting replacement and repeated charge.
The present invention, which further improves, to be, there are the grooves of installation diversion pipe to fix motor and peristaltic pump in peristaltic pump
The position of pump head, to squeeze the cylindric idler wheel at least two of the liquid in diversion pipe above Peristaltic pump head, to ensure
At least one cylindric idler wheel is in the state for squeezing diversion pipe at any time；
Motor-drive circuit receives the signal to the second wireless transceiver circuit from core board, and generation can be with driving motor
Two-phase pulse.
The present invention, which further improves, to be, the signal conditioning circuit in host includes amplifying circuit, filter circuit sum number
According to conversion circuit three parts, the signal read from pressure acquisition unit first passes through amplifying circuit amplification, then passes through filter circuit
To signal into being filtered, after filtering out invalid noise signal, processor energy is converted into finally by data converting circuit
Enough receive the digital quantity of processing, signal exports the embeded processor to core board from signal conditioning circuit later.
The present invention, which further improves, to be, pressure acquisition unit is used to measure the pressure difference between liquid and atmospheric pressure
Value carries temperature compensation function above the pressure sensor used, can be according to the temperature of current environment to the pressure of acquisition
Signal is modified, and the two exports final signal after combining.
The present invention has following beneficial technique effect：
A kind of portable brain spinal fluid guiding device provided by the invention simply can accurately realize the acquisition to pressure,
Pressure acquisition unit for measuring pressure is pasted onto distance and needs to measure near the ventricles of the brain of pressure, and pressure measurement position is identical, simultaneously
Pressure acquisition unit small in volume, will not cause patient during measuring pressure other influences, and existing skill
Art is all much that will acquire the part implantation inside of human body of pressure, can increase infection risk in this way and influence human normal function,
And then there is no similar problems for the in-vitro measurements pressure that the present invention uses.
The peristaltic pump of water conservancy diversion and host can carry out wireless communication between each other simultaneously, so not needing additional conducting wire
Or even machine is attached, so peristaltic pump can together be moved with patient, by the main execution part and process part of device
Separate, can more easily carry patient at one's side, it is more flexible convenient.
Current technology more still rest on simple coarse water conservancy diversion or in vivo carry out auxiliary circulation and not
It is the accurate operation after calculating rate time etc. and made.The present invention can also by related algorithm to cavity and
Body fluid carries out accurate water conservancy diversion to adjust the correlation function and normal circulation of human body, and system can accurately control water conservancy diversion rate, water conservancy diversion
The variables such as amount, water conservancy diversion time, and the data returned in real time according to pressure acquisition unit are adjusted, to ensure to patient most
Fast and accurately monitoring and auto-guiding accompany monitoring without real-time someone beside patient.
It can be carried out wireless communication with host with the first wireless receiving and dispatching road above peristaltic pump, it is possible to patient one
It is easy to carry with movement, water conservancy diversion operation can be continued under patient's mobile status.
Further, diversion pipe uses silica gel hose, has certain elasticity, has certain wearability, has and centainly bear
The ability of pressure, non-leakage (air-tightness is good), adsorptivity is low, temperature tolerance is good, non-aging, non-swelling, anticorrosive, precipitate
It is low.
Further, the present invention by touch display screen to patient the case where carry out image and digitized display, Ke Yiqing
Clear finds out patient in the past period and present situation, and can therefrom predict following trend, it is ensured that medical care people
Member can accurately grasp the state of an illness of patient, can also carry out human-computer interaction by way of touching screen, artificial directly to control manually
Machine operation processed.
Further, the present invention can carry out storage export by USB interface to data, convenient for related data information into
Row is further to be recorded and analyzed.
Further, the present invention carry audible-visual annunciator, can automatically can also manual alarm, ensure in time reflection patient
Or the abnormal conditions of device.
Description of the drawings
Fig. 1 is a kind of schematic diagram of portable brain spinal fluid guiding device of the present invention.
Fig. 2 is the schematic diagram of pressure acquisition unit.
Fig. 3 is the structure chart of peristaltic pump.
Fig. 4 is the structure chart of host.
Reference sign：1- diversion pipes, 2- pressure acquisition units, 21- pressure acquisition unit shells, 22- pressure sensings
Device array, 23- marker recognition circuits, 3- peristaltic pumps, 31- wriggling pump cases, 32- motors, 33- Peristaltic pump heads, 34- batteries
Group, 35- connectors, the first wireless transceiver circuits of 36-, 37- motor-drive circuits, 38- battery set management circuits, 39- is close to be opened
It closes, 4- diversion bags, 5- hosts, the second wireless transceiver circuits of 51-, 52- power modules, 53- battery management circuits, 54- signal tune
Manage circuit, 55- power circuits, 56- batteries, 57-USB interfaces, 58- touch display screens, 59 alarms, 510- core boards.
Specific implementation mode
The embodiment that the invention will now be described in detail with reference to the accompanying drawings.
As shown in Figures 1 to 4, a kind of portable brain spinal fluid guiding device provided by the invention, mainly by following several portions
Divide and constitutes：Diversion pipe 1, pressure acquisition unit 2, peristaltic pump 3, diversion bag 4 and host 5.
Diversion pipe 1 includes the parts such as pipeline therein, regulating valve, triple valve, and one end is inserted into disease first when using
In human brain room, the other end links together with diversion bag 4.
Pressure acquisition unit 2 with the heart electrode patch that can be pasted onto above skin, is used for pressure acquisition unit above
2, which are mounted on patient, needs to carry out the cavity neighbouring position of water conservancy diversion and pressure monitoring, convenient for accurately measuring pressure.When body fluid passes through
Diversion pipe flows through logical equipped with array of pressure sensors 22 in pressure acquisition unit 2 when entering pressure acquisition unit 2
Road, pressure can be by humoral effects on the film of array of pressure sensors 22, and array of pressure sensors 22 can combination film
The current measured pressure value of the degree of deformation and the temperature final output of current environment by connector 35 by data back extremely
The first wireless transceiver circuit 36 in peristaltic pump 3, is resent in the signal conditioning circuit 54 of host 5.
In peristaltic pump 3 mainly include wriggling pump case 31, motor 32, Peristaltic pump head 33, battery pack 34, connector 35,
The parts such as wireless transceiver circuit 36, motor-drive circuit 37, battery management circuit 38, close switch 39.Wriggling pump case 31 is used
Motor 32 and Peristaltic pump head 33 be installed, battery pack 34 is responsible for the electric power thus supplied of peristaltic pump, connector 35 is responsible for adopting with pressure
Collection unit 2 carries out data transmission, and the first wireless transceiver circuit 36 is mainly responsible for be counted with the second wireless transceiver circuit 51 of host 5
According to communication, situations such as battery set management circuit 38 can record the voltage and current of battery pack 34, and to work(that peristaltic pump 3 consumes
Rate makes calculating, calculates 34 remaining capacity of battery pack and expected remaining usage time etc., motor-drive circuit 37 passes through reception
Come, to 32 outputting drive voltage of motor, to change motor 32 by changing the frequency of square wave from 510 square-wave signal of core board
Rotating speed.
Host 5 includes the second wireless transceiver circuit 51, is responsible for being communicated with peristaltic pump 3, and power module 52 is entire main
Machine provides electric energy, and battery management circuit 53 is responsible for the charge and discharge of the managing electric quantity of battery 56, and the processing of signal conditioning circuit 54 is wriggled
The signal that 3 passback of pump comes, the output voltage processing of power module 52 is converted to each chip by power circuit 55 can normal work
The voltage range of work, battery 56, USB interface 57, touch display screen 58, alarm 59, core board 510.
Signal conditioning circuit 54 includes filter circuit, signal amplification circuit, data converting circuit；The above circuit packet
Include the resistance capacitance in integrated circuit related with same chip and its relevant peripheral circuit.Filter circuit is to use operational amplifier
With resistance capacitance combination come realize docking collect mail number in noise filtering, amplifying circuit be use instrument amplifier chip
Realize the amplification to signal, because the signal resolution that peristaltic pump 3 returns is relatively low, core board 310 is difficult to handle, so needing
Being amplified could convenient processor calculating analysis；The effect of data converting circuit is the simulation letter for amplifying amplifying circuit
Number it is converted into the digital signal that core board 510 can receive and process.
53 one side of battery management circuit can carry out electricity monitoring to battery 56, this includes to voltage, electric current, temperature
Etc. physical quantitys measurement and calculating, also on the other hand be responsible for the charging for carrying out having management to battery 56.Also include and core board
510 carry out data exchange, and the relevant information of battery 56 is on the one hand sent to core board 510, on the other hand can also be received simultaneously
Execute the instruction that core board 510 is sent out.
Core board 510 carries out processing comparison by the pressure value of the multiple points acquired to pressure acquisition unit 2, passes through PID
Algorithm is analyzed come the situation current to patient, and there are one adjusting of the default value as pressure for meeting when machine startup
Target, acquiring the pressure data of passback later can all be compared with this setting value, then by the result of comparison carry out ratio,
Major parameter as regulation and control pressure is used for the water conservancy diversion speed to peristaltic pump 3 by the operation of integral, differential, calculation process result
It is controlled.Simultaneously as peristaltic pump 3 above can also basis close to 39 core board 519 of switch with can measure rotating speed
3 rotating speed of peristaltic pump judges current water conservancy diversion rate and the body fluid volume of water conservancy diversion, and then obtains more fully anti-
Feedback；
Water conservancy diversion rate can also be manually entered or baffle carries out water conservancy diversion, two kinds of functional modes of auto-manual may be implemented
Autonomous selection switching.
In order to further understanding of the invention, now be further illustrated to it.
Pressure acquisition unit 2 includes sensor array and UID circuits 22, pressure acquisition unit shell 21.Pressure sensor
Size is small, it is at low cost, low in energy consumption, be easily installed it is fixed, there is no any toxic side effect to patient.Pressure acquisition unit 2 does not need
It is implanted into encephalic, it is only necessary to the ventricles of the brain is inserted into one end of diversion pipe 1, easy to operate avoid occurs in monitoring press process
Other normal functions of the brain of infection and influence patient.Temperature compensation function is carried in pressure sensor, it can be wider
Temperature range within normal accurate measure body-fluid pressure.Preferably, pressure sensor uses differential pressure pick-up, the pressure of measurement
Force value is the difference relative to the atmospheric pressure in current environment, has the advantages that small in volume precision high power consumption is low.Pressure
Being carried on sensor can be with the film of induction pressure, and film contacts, which can be acted on to pressure when body fluid on film, makes its hair
The power of raw deformation, deformation degree can also be presented as different size of electric signal.Then it is transmitted a signal to by connector compacted
Dynamic pump 3.
2 the inside of pressure acquisition unit is also useful for the landmark identification circuit 23 being powered to sensor array 22.This electricity
Road carries recognition memory function, and there are one numbers to core board by the chip belt with identification function for pressure acquisition unit 2
510, so that core board 510 can distinguish this pressure acquisition unit 2 and whether coupled diversion pipe 1 has used
Cross, once used on who patient, so prevent same casing it is multiple it is chaotic use, handled convenient for the record of data
With the more preferable requirement that must ensure this covering device and meet medical field clinic.
Pressure acquisition unit shell 21 uses PC materials, can be subjected to steam, cleaning agent, heating and high dose radiation disinfection,
And does not occur to turn yellow and decline with physical property.In 21 internal structure of pressure acquisition unit shell for water conservancy diversion channel in there are
Hole acquires pressure data for installing fixed sensor array 22, sensor array 22 and pressure acquisition unit shell 21 it
Between be fixed using cyanoacrylate medical type adhesive.
Peristaltic pump 3 and diversion pipe 1 work together the regulation and control for having carried out paired pressure.1 one end of diversion pipe is inserted into from patient's head
Into the ventricles of the brain, on the one hand it is used to facilitate the measurement of intracranial pressure with the connection of pressure acquisition unit shell 21, it will also be with peristaltic pump 3
Part, which fits together, completes regulation and control to intracranial pressure, and the end liquid for that will draw that link together with diversion bag 4 is arranged
It puts into diversion bag 4.The liquid that diversion bag 4 and 1 end of diversion pipe link together for collecting the extraction of peristaltic pump 3.Peristaltic pump
Shell 31 is for installing the parts such as motor 32, diversion pipe 1 and Peristaltic pump head 33 in peristaltic pump, close switch 39.It wriggles
Pump pump head 33 is for cooperative with diversion pipe 1, and Peristaltic pump head 33 can lead to when being rotated by the drive of motor 32
The idler wheel crossed in self structure squeezes diversion pipe 1, to carry out active water conservancy diversion to cerebrospinal fluid and then realize to encephalic
The regulation and control of pressure.
The material selection silica gel of diversion pipe 1, performance and service life are more excellent permanent.
Wriggling pump case 31 is using hard PC.
Hall switch is selected close to switch 39, the effect close to switch 39 is on the one hand be used for whether checking peristaltic pump 3
It is fixed tight with the installation of diversion pipe 1, on the other hand it is for detecting the rotating speed of peristaltic pump 3 to calculate the liquid that water conservancy diversion goes out
Volume.
Motor-drive circuit 37 carrys out driving motor 32 for the signal of receiving host 5, and to the rotary speed direction etc. of motor 32
It is controlled.Motor-drive circuit 37 can change the working condition of peristaltic pump 3 by the change of its input voltage and signal
And power.Motor 32 is screwed in together using stepper motor, motor 32 and shaft and Peristaltic pump head 33.
Charging can be terminated automatically when battery 56 is full of, alarm can be sent out when 56 low battery of battery.Cell tube
It manages and also carries charge protection electricity in circuit 53, battery is carried out for the abnormal charged state to overcurrent overvoltage and overheat
Protection.Signal conditioning circuit 54 can be filtered the signal that pressure acquisition unit 2 returns, voltage stabilizing, amplification, the processing such as conversion,
It is treated as core board 38 and can receive the signal of identification being back to core board 510 again.
Touch display screen 58 is the pressure change feelings currently and in a period of time for real-time display patient related information
Condition can carry out human-computer interaction by touch, artificial to carry out information input and operating device, such as preset pressure value and pressure
Range, manual operation peristaltic pump 3 works, to being configured for whole device.
USB interface 57 be used to record export or store current patient and ought up till now table apparatus relevant information with after an action of the bowels
Continuous analysis data.
Alarm 59 selects common loud speaker, and alarm 59 is for the sound that sounds the alarm when monitoring pressure anomaly.
Core board 510 is the most crucial process part of whole equipment, is responsible for the normal table operation of control whole device,
It includes the generations such as charging and discharging state, the water conservancy diversion process of data and battery 56 that the acquisition of pressure acquisition unit 2 is returned that analysis, which calculates,
Data.
Acquisition mode, progress and pressure acquisition unit can be opened when core board 510 is if necessary to carry out intracranial pressure acquisition
Data exchange between 2 may turn off acquisition mode when need not acquire information, not continue to receive and handle pressure
The signal of power collecting unit 2, when receiving and processing the signal of pressure acquisition unit 2, by the pressure value received and in advance
The value first set is compared, according to the size combination pid control algorithm of the difference between two pressure, according to pressure
Current value and change procedure before carry out diagnositc decision to patient's present case, and that predicts future pressure moves towards trend,
It such as needs peristaltic pump 3 to carry out the adjustment intervention to pressure, then can send out signal to the first wireless transceiver circuit of peristaltic pump 3, believe
Motor-drive circuit 37 will execute the order received when number being transferred to motor-drive circuit 37 again.In battery pack
During 34 56 charge and discharge of electric discharge and battery, core board 510 also can be received continuously from the first wireless receiving and dispatching electricity
In road the power supply system to whole device is realized about the data of battery 56 about battery pack 34 and battery management circuit 53
The condition monitoring of system can then send out dependent instruction and be operated, if recognizing current electricity if necessary to charging or disconnection charging
Pond group 34 or 56 working condition of battery can then trigger alarm extremely.
The transmission process of data is that pressure acquisition unit 2 collects and is transmitted to peristaltic pump by connector 35 after data
3, the first wireless transceiver circuit 36 in peristaltic pump 3 is retransmited to the second wireless transceiver circuit 51 of host 5, then using
Core board 510 is returned to after the processing of signal conditioning circuit 54, is also first to be sent to second wirelessly when needing to send out instruction
Transmission circuit 51, then it is issued to the first wireless transceiver circuit 36, it is sent to other parts further according to the particular content of order.
Power module 52 is used to charge to whole system, selects 24VDC stabilized power sources.
Battery pack 34 is that lithium ion chargeable battery group is used to power to whole system.Battery 33 selects lithium ion battery,
Carry out charging operations can be disassembled when not enough power supply.
Battery 56 uses rechargeable lithium ion batteries, is responsible for the clock power supply of core board 510.
Claims (10)
1. a kind of portable brain spinal fluid guiding device, which is characterized in that including diversion pipe (1), pressure acquisition unit (2), wriggle
Pump (3), diversion bag (4) and host (5)；Wherein,
Pressure acquisition unit (2) includes pressure acquisition unit shell (21) and is arranged in pressure acquisition unit shell (21) side wall
Sensor array (22) at hole and the landmark identification circuit (23) for being powered to sensor array (22)；Peristaltic pump
(3) include wriggling pump case (31), motor (31) Peristaltic pump head (33), battery pack (34), connector (35), the first wireless receipts
Power Generation Road (36), motor-drive circuit (37) and battery set management circuit (38), host (5) include the second wireless transceiver circuit
(51), power module (52), battery management (53), signal conditioning circuit (54), power circuit (55), battery (56) and core board
(510)；
Pressure acquisition unit (2) is connect by connector (35) with peristaltic pump (3)；Battery pack (34) is used to supply for peristaltic pump (3)
Electricity, and controlled by battery set management circuit (38)；Second wireless transceiver circuit (51) is used for and the first wireless transceiver circuit
(36) cooperating carries out the data communication between host (5) and peristaltic pump (3)；Power module (52) is used for external power supply
The 220VAC of line is converted into the voltage that device can use；Battery management circuit (53) and signal conditioning circuit (54) are used for will be compacted
It is transmitted to core board (510) again after the signal processing of dynamic pump (3) passback, battery (56) is used for the clock of core board (510)
Power supply；Power circuit (55) is carried for generating different voltage values for the voltage of power module (52) to be carried out decompression processing
The circuit components of supply signal conditioning circuit (54) make it work under the best voltage range of performance, signal conditioning circuit
(54) signal of pressure acquisition unit (2) is handled under the power supply of power circuit (55)；
When work, the inside cavity that required progress pressure detecting is inserted into one end of diversion pipe (1) or water conservancy diversion operates, following one
Section diversion pipe (1) is installed together with pressure acquisition unit (2), next one section of diversion pipe (1) and the wriggling for being used for water conservancy diversion
Pump (3) is installed together, and end and the diversion bag (4) of last diversion pipe (1) link together, and the diversion pipe (1) is for assisting
Carry out water conservancy diversion and pressure measurement；For installing the pressure acquisition unit that cooperating carries out pressure measurement with diversion pipe (1)
(2) the inside array of pressure sensors (22) is contacted with cerebrospinal fluid carries out pressure acquisition, then passes through connector (35) return data
Host (5), signal are back to by the first wireless transceiver circuit (36) and the second wireless transceiver circuit (51) again to peristaltic pump (3)
Modulate circuit (54) handles the signal of acquisition back, is then back to core board (510), core board (510) docking again
It receives the data come and carries out processing analysis again, then judged to artificial situation according to result and make relevant operation；It is led
Order is issued to peristaltic pump (3) by core board (510) when stream operation, and peristaltic pump (3) sends a command to motor driving again
Circuit (37), motor-drive circuit (37) generate the pulse that can control motor (32) rotation, when motor (32) drives peristaltic pump
When pump head (33) rotates, the liquid discharge in extruding diversion pipe (1) is carried out, whole device realizes the real-time prison to pressure
Survey analysis and diversion function.
2. a kind of portable brain spinal fluid guiding device according to claim 1, which is characterized in that diversion pipe (1) uses silicon
Glue hose.
3. a kind of portable brain spinal fluid guiding device according to claim 1, which is characterized in that host (5) further includes USB
Interface (57), alarm (59) and touch display screen (58), touch display screen (58) for real-time display relevant information and into
Row human-computer interaction.
4. a kind of portable brain spinal fluid guiding device according to claim 1, which is characterized in that peristaltic pump (3) further includes
Close to switch (39), Peristaltic pump head (33) is mounted at the cylindrical grooves in wriggling pump case (31), motor (32) installation
The shaft of lower section in wriggling pump case (31), motor (32) is inserted by the hole of wriggling pump case (31) bottom and and peristaltic pump
Pump head (33) is fixed on together by screw hole, and diversion pipe (1) is wrapped in Peristaltic pump head (33) above, close to switch
(39) it is used to measure the rotating speed of peristaltic pump (3).
5. a kind of portable brain spinal fluid guiding device according to claim 1, which is characterized in that core board (510) is embedding
Enter formula computer processor and its peripheral circuit component.
6. a kind of portable brain spinal fluid guiding device according to claim 1, which is characterized in that pressure acquisition unit (2)
In array of pressure sensors in sensor quantity be two or more.
7. a kind of portable brain spinal fluid guiding device according to claim 1, which is characterized in that power module (31) uses
24VDC regulated power supplies ensure the electric energy supply of whole device；Battery pack (32) and battery (33) use lithium ion/lighium polymer
Battery can carry out dismounting replacement and repeated charge.
8. a kind of portable brain spinal fluid guiding device according to claim 1, which is characterized in that in peristaltic pump (35) there are
The groove for installing diversion pipe (1) fixes the position of motor (32) and Peristaltic pump head (33), Peristaltic pump head (33) above to
The cylindric idler wheel at least two for squeezing the liquid in diversion pipe (1), to ensure that at least one is cylindric at any time
Idler wheel is in the state for squeezing diversion pipe (1)；
Motor-drive circuit (36) receives the signal to the second wireless transceiver circuit (51) from core board (510), and generation can be with
The two-phase pulse of driving motor (32).
9. a kind of portable brain spinal fluid guiding device according to claim 1, which is characterized in that the signal in host (5)
Modulate circuit (54) includes amplifying circuit, filter circuit and data converting circuit three parts, is read from pressure acquisition unit (2)
Signal first pass through amplifying circuit amplification, then by filter circuit to signal into being filtered, filter out invalid noise signal
Later, the digital quantity of processing can be received by being converted into processor finally by data converting circuit, and signal is from signal condition later
Circuit (54) is exported to the embeded processor on core board (510).
10. a kind of portable brain spinal fluid guiding device according to claim 1, which is characterized in that pressure acquisition unit (2)
For measuring the pressure difference value between liquid and atmospheric pressure, temperature compensation function, energy are carried above the pressure sensor used
Enough to be modified to the pressure signal of acquisition according to the temperature of current environment, the two exports final signal after combining.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810689185.XA CN108742589B (en) | 2018-06-28 | 2018-06-28 | Portable cerebrospinal fluid flow guiding device |
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|---|---|---|---|
| CN201810689185.XA CN108742589B (en) | 2018-06-28 | 2018-06-28 | Portable cerebrospinal fluid flow guiding device |
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| CN108742589A true CN108742589A (en) | 2018-11-06 |
| CN108742589B CN108742589B (en) | 2020-10-27 |
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| CN113786525A (en) * | 2021-09-10 | 2021-12-14 | 深圳长久康联生物科技有限公司 | Intracranial flow guide and intracranial pressure monitoring integrated device |
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| CN108742589B (en) | 2020-10-27 |
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