CN107497015A - A kind of wireless medical drop terminal monitoring controller - Google Patents
A kind of wireless medical drop terminal monitoring controller Download PDFInfo
- Publication number
- CN107497015A CN107497015A CN201710902363.8A CN201710902363A CN107497015A CN 107497015 A CN107497015 A CN 107497015A CN 201710902363 A CN201710902363 A CN 201710902363A CN 107497015 A CN107497015 A CN 107497015A
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- CN
- China
- Prior art keywords
- module
- monitoring controller
- terminal monitoring
- drop terminal
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16886—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body for measuring fluid flow rate, i.e. flowmeters
- A61M5/1689—Drip counters
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/35—Communication
- A61M2205/3546—Range
- A61M2205/3553—Range remote, e.g. between patient's home and doctor's office
Landscapes
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a kind of wireless medical drop terminal monitoring controller, including patient calling module, liquid level monitoring module, dropping speed detection module, dropping speed control module, audible alarm module, AVR single chip processing module and wireless communication module;The AVR single chip processing module is communicated to connect with the wireless communication module by SPI interface interactive communication, the wireless communication module by wireless network and portable monitor.The present invention completes the functions such as patient calling, drip liquid level monitoring, the detection of dropping speed and control and audible alarm, ward drop can be monitored in real time, alarm is sent as drop produces interrupt signal less than setting warning value, improve the security of medical intravenous drip equipment, simultaneously remote on-line monitoring is realized using communication, medical worker is understood drop state in time, make its operation more convenient, improve the operating efficiency of medical worker.
Description
Technical field
The present invention relates to technical field of medical equipment, more particularly to a kind of wireless medical drop terminal monitoring controller.
Background technology
At present, hospital's venous transfusion is mainly manual control, the venous transfusion monitored by people, can not correctly reconcile decoction stream
Speed, excessive velocities cause vascular stimulation due to have potassium element in drop into branch, and pain can be shown as by generally stimulating.But generally
Transfusion speed will see patient's own bodies situation, but infuse or can have stimulation to blood vessel, heart and kidney.
Further, since medical personnel be not usually it is one-to-one, it is necessary to multiple patients carry out infusion management, it is impossible at any time
, it is necessary to which the family members of patient notify medical personnel to be adjusted, especially when being guarded before each patient's sick bed, it is necessary to adjust transfusion speed
It is decoction be totally lost need change when, it is very inconvenient.Once medical personnel go to seek room or handle other things, family
Category then wants medical personnel corresponding to each ward searching.
The content of the invention
(1) technical problem solved
In order to solve the above problems, the invention provides a kind of wireless medical drop terminal monitoring controller, to ward drop
Monitoring in real time, alarm is sent as drop is less than setting warning value, the security of medical intravenous drip equipment is improved, makes medical matters
The operation of personnel becomes more to facilitate.
(2) technical scheme
A kind of wireless medical drop terminal monitoring controller, including the inspection of patient calling module, liquid level monitoring module, dropping speed
Survey module, dropping speed control module, audible alarm module, AVR single chip processing module and wireless communication module;The AVR
Single chip processing module passes through wireless with the wireless communication module by SPI interface interactive communication, the wireless communication module
Network communicates to connect with portable monitor.
Further, the liquid level monitoring module uses reflection infrared sensor ST198.
Further, the dropping speed detection module include photoelectric sensor, Schmidt trigger, the second rheostat,
20th electric capacity, the 17th resistance and the 18th resistance.
Further, the dropping speed control module includes step motor control chip, stepper motor driver chip, step
Stepper motor, the first rheostat, the 13rd~the 16th resistance, the 18th electric capacity and the 19th electric capacity.
Further, the AVR single chip chip of the AVR single chip processing module is ATmega128 model chips.
Further, the wireless communication module includes rf chip, the second antenna, quartz crystal oscillator, the first~the
Three inductance, the 8th~the 17th electric capacity, the 11st resistance and the 12nd resistance.
Further, the photoelectric sensor is monochromatic light speed direct-projection type photoelectric sensor ST1150, and the Schmidt touches
Hair device is CD40106.
Further, the step motor control chip is 20pin L297 model chips, the driving stepper motor
Chip is 15pin L298 model chips.
Further, the rf chip is the mono- transceiving chip nRF24L01 of 20pin GFSK.
(3) beneficial effect
The invention provides a kind of wireless medical drop terminal monitoring controller, completes patient calling, drip liquid level monitoring, point
The functions such as detection and control and the audible alarm of speed are dripped, ward drop can be monitored in real time, if drop is less than setting warning
Value produces interrupt signal and sends alarm, improves the security of medical intravenous drip equipment, while utilize communication
Remote on-line monitoring is realized, medical worker is understood drop state in time, makes its operation more convenient, improves medical worker's
Operating efficiency, apparatus structure is simple, stable performance, compact, and system power dissipation is low.
Brief description of the drawings
Fig. 1 is a kind of system architecture diagram of wireless medical drop terminal monitoring controller involved in the present invention.
Fig. 2 is a kind of dropping speed detection module circuit of wireless medical drop terminal monitoring controller involved in the present invention
Schematic diagram.
Fig. 3 is a kind of dropping speed control module circuit of wireless medical drop terminal monitoring controller involved in the present invention
Schematic diagram.
Fig. 4 is a kind of wireless communication module circuit theory of wireless medical drop terminal monitoring controller involved in the present invention
Figure.
Embodiment
Embodiment involved in the present invention is described in further details below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of wireless medical drop terminal monitoring controller, including patient calling module, liquid level monitoring module,
Dropping speed detection module, dropping speed control module, audible alarm module, AVR single chip processing module and radio communication mold
Block;AVR single chip processing module passes through wireless network with wireless communication module by SPI interface interactive communication, wireless communication module
Network communicates to connect with portable monitor.
Terminal monitoring controller is responsible for the data acquisition and processing (DAP) (dropping speed and drop liquid level etc.) of drop state, and will
The data handled well are sent to portable monitor by communication, for drop liquid level less than setting value, Bing Renhu
The emergency such as cry, handled according to interrupt mode, send alarm, and event type is sent to portable with data packet form
Formula monitor.
As shown in Fig. 2 dropping speed detection module include photoelectric sensor U5, Schmidt trigger U6, rheostat Rt2,
Electric capacity C20, resistance R17 and resistance R18.
Dropping speed is measured using infrared tube launching technique.Drop detection circuit includes infrared emission, reception and pulse
Shaping three parts.Photoelectric sensor U5 is monochromatic light speed direct-projection type photoelectric sensor ST1150, and light slit width is 1.5mm, in optical axis
The heart is 2.5mm, and infrared detection area is smaller.When dripless by when, reception pipe (triode inside ST1150) conducting, Vin
For low level;When have drop by when, reception pipe cut-off, Vin place generation high level pulse, by Schmidt trigger
The square-wave pulse of a string of rules is produced after CD40106 shapings at Vout, and delivers to single-chip microcomputer and is handled.
Liquid level monitoring then uses reflection infrared sensor ST198, and circuit theory is similar with dropping speed detection circuit.
The reflection-type photoelectric sensing formed during ST198 using high emission power infrared photodiode and high sensitivity phototransistor
Device, using non-contact detecting mode, detecting distance can be used when being 2~10mm.When liquid level is less than setting value, reception pipe receives
Level signal, deliver to single-chip microcomputer after phase inverter paraphase, triggering is interrupted.
As shown in figure 3, dropping speed control module include step motor control chip U3, stepper motor driver chip U4,
Stepper motor M1, rheostat Rt1, resistance R13~R16, electric capacity C18 and electric capacity C19.Wherein, step motor control chip U3 is
20pin L297 model chips, stepper motor driver chip U4 are 15pin L298 model chips.PWM choppers inside L297
Circuit can produce PWM ripples in switching mode, the electric current in controlled motor winding, so as to the fine rotational of controlled motor.It is produced
Raw Four-phase control signal can be used for control two-phase bipolarity and four phase unipolarity stepper motors.L298 includes the high electricity of HBridge
Pressure, high current are enjoyed a double blessing bridge driver, and No. four drive circuits can drive 46V, below 2A two-phase or four phase step motor, can be real
The rotating of existing stepper motor.The slip of the flow velocity clamp roll axle of transfusion apparatus is controlled by the rotating of accurate controlled motor,
To reach the purpose of control drop dropleting speed.
The AVR single chip chip of AVR single chip processing module is ATmega128 model chips, the portable prison of primary recipient
The order data that instrument is sent is controlled, and the data of collection are subjected to processing and are sent to portable monitor, completes patient calling, liquid level
The functions such as monitoring, the Detection & Controling of dropping speed and audible alarm.
As shown in figure 4, wireless communication module includes rf chip U2, the second antenna E2, quartz crystal oscillator X1, inductance L1
~L3, electric capacity C8~C17, resistance R11 and resistance R12.Wherein, rf chip U2 is the mono- transceiving chips of 20pin GFSK
NRF24L01, its working frequency range are the ISM band (2.4~2.5GHz) of Global Access, are a mono- transmitting-receiving cores of really GFSK
Piece.Built-in link layer, there is automatic-answering back device and automatic retransmitting function, support address and CRC check function.It has extremely low electricity
Stream consumption, current drain is lower under power down and standby mode, and data transmission rate reaches as high as 2Mbps.The SPI interface of built-in standard
It can carry out data transmission with single-chip microcomputer, speed reaches as high as 8Mbps.125 optional channels can be operated in, in the receiving mode,
The data for 6 data channel for being operated in same channel can be received simultaneously, and the data channel for the transceiver being in communication with each other is arranged to
Same address.
The transmitting-receiving of the conversion of its working condition and data is controlled by the read/write to nRF24L01 internal registers, when
When Transceiver Data is received/is sent completely or occurs abnormal, IRQ pins produce interrupt signal, and low level is effective, to STATUS
Register corresponding positions one writing, remove interrupt identification.
The invention provides a kind of wireless medical drop terminal monitoring controller, completes patient calling, drip liquid level monitoring, point
The functions such as detection and control and the audible alarm of speed are dripped, ward drop can be monitored in real time, if drop is less than setting warning
Value produces interrupt signal and sends alarm, improves the security of medical intravenous drip equipment, while utilize communication
Remote on-line monitoring is realized, medical worker is understood drop state in time, makes its operation more convenient, improves medical worker's
Operating efficiency, apparatus structure is simple, stable performance, compact, and system power dissipation is low.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention
Think and scope is defined.On the premise of design concept of the present invention is not departed from, technology of the ordinary people in the field to the present invention
The all variations and modifications that scheme is made, all should drop into protection scope of the present invention, the claimed technology contents of the present invention,
All record in detail in the claims.
Claims (9)
- A kind of 1. wireless medical drop terminal monitoring controller, it is characterised in that:Including patient calling module, liquid level monitoring module, Dropping speed detection module, dropping speed control module, audible alarm module, AVR single chip processing module and radio communication mold Block;The AVR single chip processing module passes through SPI interface interactive communication, the radio communication mold with the wireless communication module Block is communicated to connect by wireless network and portable monitor.
- A kind of 2. wireless medical drop terminal monitoring controller according to claim 1, it is characterised in that:The liquid level monitoring Module uses reflection infrared sensor ST198.
- A kind of 3. wireless medical drop terminal monitoring controller according to claim 1, it is characterised in that:The dropping speed Detection module includes photoelectric sensor, Schmidt trigger, the second rheostat, the 20th electric capacity, the 17th resistance and the 18th Resistance.
- A kind of 4. wireless medical drop terminal monitoring controller according to claim 1, it is characterised in that:The dropping speed Control module includes step motor control chip, stepper motor driver chip, stepper motor, the first rheostat, the 13~the 16 resistance, the 18th electric capacity and the 19th electric capacity.
- A kind of 5. wireless medical drop terminal monitoring controller according to claim 1, it is characterised in that:The AVR monolithics The AVR single chip chip of machine processing module is ATmega128 model chips.
- A kind of 6. wireless medical drop terminal monitoring controller according to claim 1, it is characterised in that:The radio communication Module includes rf chip, the second antenna, quartz crystal oscillator, the first~the 3rd inductance, the 8th~the 17th electric capacity, the 11st Resistance and the 12nd resistance.
- A kind of 7. wireless medical drop terminal monitoring controller according to claim 3, it is characterised in that:The photoelectric sensing Device is monochromatic light speed direct-projection type photoelectric sensor ST1150, and the Schmidt trigger is CD40106.
- A kind of 8. wireless medical drop terminal monitoring controller according to claim 4, it is characterised in that:The stepper motor Control chip is 20pin L297 model chips, and the stepper motor driver chip is 15pin L298 model chips.
- A kind of 9. wireless medical drop terminal monitoring controller according to claim 6, it is characterised in that:The radio-frequency receiving-transmitting Chip is the mono- transceiving chip nRF24L01 of 20pin GFSK.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710902363.8A CN107497015A (en) | 2017-09-29 | 2017-09-29 | A kind of wireless medical drop terminal monitoring controller |
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CN201710902363.8A CN107497015A (en) | 2017-09-29 | 2017-09-29 | A kind of wireless medical drop terminal monitoring controller |
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CN107497015A true CN107497015A (en) | 2017-12-22 |
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CN201710902363.8A Withdrawn CN107497015A (en) | 2017-09-29 | 2017-09-29 | A kind of wireless medical drop terminal monitoring controller |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108600366A (en) * | 2018-04-24 | 2018-09-28 | 山东师范大学 | Drop information monitoring method and system based on ZigBee multihop networks |
-
2017
- 2017-09-29 CN CN201710902363.8A patent/CN107497015A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108600366A (en) * | 2018-04-24 | 2018-09-28 | 山东师范大学 | Drop information monitoring method and system based on ZigBee multihop networks |
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Application publication date: 20171222 |