CN208301932U - Intelligent intravenous transfusion device device - Google Patents
Intelligent intravenous transfusion device device Download PDFInfo
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- CN208301932U CN208301932U CN201720841188.1U CN201720841188U CN208301932U CN 208301932 U CN208301932 U CN 208301932U CN 201720841188 U CN201720841188 U CN 201720841188U CN 208301932 U CN208301932 U CN 208301932U
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Abstract
The utility model discloses a kind of intelligent intravenous transfusion device devices, are applied on disposable transfusion device, are equipped with drop-speed controller structure；The drop-speed controller structure is equipped with shell, Servo-controller and eccentric wheel, one section of infusion tube of the Servo-controller and the disposable transfusion device is each attached on the shell, the eccentric wheel is mounted in the shaft of the Servo-controller, and the portion perimeter face of the eccentric wheel is as working face, the circumferential of the working face extends along Archimedes spiral, wherein, shaft axis of the Archimedes spiral perpendicular to the Servo-controller, the pole of the Archimedes spiral is located on the shaft axis of the Servo-controller, and, the working face of the eccentric wheel is fixed on the pipeline section on shell with the infusion tube and is mutually close to.The utility model can be increased substantially to the fast precision controlled of disposable transfusion device drop, it can be achieved that the accurate regulation of clinical vein transfusion speed.
Description
Technical field
The utility model relates to a kind of intelligent intravenous transfusion device devices, belong to Medical Devices.
Background technique
Currently, hospital's venous transfusion is mainly manual control, the venous transfusion monitored by people can not correctly reconcile medical fluid stream
Speed, excessive velocities are due to there is the ingredient of potassium element to will cause vascular stimulation in drop, usually stimulation can show as pain.But usually
Infusion speed will see own bodies situation, but being infused still can be to blood vessel and heart, and kidney is irritating.In intelligent transfusion field,
Mainly in terms of research is 5 following the problem of: the precise measurement of speed is dripped；Drip the automatic control of speed；The intelligence of residual volume of solution
Detection；Constant-temp transfusion；Infusion information timely feedbacks；Below with regard to main research both domestic and external below this 5 aspect combings, application
Method.
When speed measurement is dripped in processing, there are two types of main methods: first, when passing through drop by photoelectric sensor detection light
Decaying realize droplet counting, to achieve the purpose that measurement.It is specific to be divided into transmission-type and reflective detection method again.
Transmission-type is the transmitted light intensity of detection decaying, and optical signal is converted into electric signal becomes high by way of comparator given threshold
Low level realizes that single-chip microcontroller counts after being sent into corresponding shaping circuit；Reflective is that detection passes through the reflected reflection of drop
Light carries out circuit shaping realization counting after being converted into electric signal.Photoelectric Detection cost is small, substantially can be accurate in a wide range of
It is low to judge whether there is drop, to realize drop speed detection.But this method is influenced by veiling glare, it is possible that missing inspection or
Person's false retrieval, leads to miscount；Second, it is counted by changing the resonant state of circuit.This mode is by changing capacitance pole
Dielectric constant between plate makes the capacitance of capacitor change, so that the resonant state for destroying circuit reaches counting.The method can be real
Now more accurate droplet counting, error is small, but at high cost, implements more difficulty, needs certain processing conditions.It is existing
Most of similar products be all to carry out the measurement of transfusion speed by the way of transmission type photoelectric measurement.
In terms of dripping fast control, at present there are three types of method, first, self-energy controls.This kind of equipment is not by gravity
Effect, air pump of the liquid inside equipment push, and can adjust the speed of liquid flowing by adjusting the thrust size of air pump.
Second, it is controlled using stepper motor and cross bar.The main element of this kind of equipment control is that cross bar adds vertical bar, and vertical bar is fixed, and has one
Internal thread hole, cross bar have matching external screw thread, connect with stepper motor, make cross bar and vertical bar by the effect of stepper motor
Relative motion occurs to squeeze perfusion tube and realize to adjust and drip speed.Third is to carry out rate controlling by transmission device, with transmission belt handle
Pinion gear is connected with gear wheel, realizes rate controlling with gear wheel drive pinion.There are following for the fast control mode of these existing drops
Insufficient: though first method can realize more accurate rate controlling, cost of manufacture is high, operates more troublesome.And latter two
Mode all cannot achieve linear rate controlling since the angle by motor is limited, and error is larger.
Estimation for residual volume of solution, similar product generally use the mode of gravity sensor to measure, directly surplus
The weight of remaining liquid directly becomes surplus by conversion.The existing residual volume of solution estimation mode has the disadvantage that
It is at high cost, it is complex in practical operation.
The feedback of infusion information and transmitting be usually all using wireless transmission method, it is general there are three types of, first is bluetooth, but
Since its transmission range is short etc., drawbacks have gradually been abandoned；Second is WIFI, this mode can very easily realize slave computer,
The data sharing of host computer and mobile phone terminal, transmission rate is fast, but its safety is poor, apart from short；Third is wirelessly assisted with Zigbee
View, small power consumption, safety is good, long transmission distance, but transmission rate is slower, cannot achieve slave computer and is directly counted with mobile phone
According to shared.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of intelligent intravenous transfusion device devices.
Above-mentioned technical problem is solved, technical solution used by the utility model is as follows:
A kind of intelligence intravenous transfusion device device, is applied on disposable transfusion device, it is characterised in that: the intelligence vein is defeated
Liquid device device is equipped with drop-speed controller structure；The drop-speed controller structure is equipped with shell, Servo-controller and eccentric wheel, the servorudder
One section of infusion tube of machine and the disposable transfusion device is each attached on the shell, and the eccentric wheel is mounted on the servo
In the shaft of steering engine, and the portion perimeter face of the eccentric wheel, as working face, the circumferential direction of the working face is along Archimedes spiral
Extend, wherein shaft axis of the Archimedes spiral perpendicular to the Servo-controller, the pole of the Archimedes spiral
On the shaft axis of the Servo-controller, also, the working face of the eccentric wheel and the infusion tube are fixed on shell
On pipeline section be mutually close to.
As preferred embodiments of the present invention: the intelligent intravenous transfusion device device is additionally provided with microprocessor system
System, the input circuit for inputting infusion information, the liquid for detecting the drop in the drop pot for instilling the disposable transfusion device
Drip detection circuit, servo driving circuit, display circuit and the voltage conversion circuit for powering for the microprocessor system；Institute
State that microprocessor system can receive the infusion information of input circuit input respectively and the drop detection circuit detects
Each drop drop produced drop instillation trigger signal when instilling in the drop pot, and the microprocessor system can lead to
Cross the work of Servo-controller described in the servo driving circuit control；The display circuit electrically connects with the microprocessor system
It connects.
As preferred embodiments of the present invention: the intelligent intravenous transfusion device device is additionally provided with for in institute
State heating unit that the medical fluid flowed through in disposable transfusion device is heated and for ring where detecting the disposable transfusion device
The temperature sensing circuit of border temperature, the microprocessor system can control the heating unit starting heating or stop heating,
And the microprocessor system can receive the real time environment temperature that the temperature sensing circuit detects.
As preferred embodiments of the present invention: the drop detection circuit is using infrared photoelectric sensor to drop
The drop entered in the drop pot of the disposable transfusion device is detected, and uses waveform shaping chip by the infrared photoelectric sensing
The output signal of device is shaped as square-wave signal as the drop and instills trigger signal.
As preferred embodiments of the present invention: the intelligent intravenous transfusion device device is additionally provided with wireless transmission electricity
Road；The data generated in the intelligent intravenous transfusion device device work can be passed through the wireless biography by the microprocessor system
Transmission of electricity road is sent to remote terminal, wherein the wireless transmission circuit uses the Zigbee chip of model Xbee PRO
As preferred embodiments of the present invention: the intelligent intravenous transfusion device device is additionally provided with warning circuit；
The warning circuit and the microprocessor system are electrically connected.
As preferred embodiments of the present invention: the microprocessor system is MSP430 single-chip microcontroller minimum system
System, the input circuit are keyboard, and the voltage conversion circuit is USB port circuit.
Compared with prior art, the utility model has the following beneficial effects:
The utility model is equipped with drop-speed controller structure, and eccentric wheel can be driven by Servo-controller and rotate in the forward direction and reversely revolve
Turn, using the property of the constant velocity spiral of Archimedes spiral, the working face of eccentric wheel is solid to infusion tube in its rotary course
The extruding degree for the pipeline section being scheduled on shell is linear change, this allows for the drop speed i.e. medical fluid of disposable transfusion device by one
The drop speed of secondary property infusion apparatus also can pass through Servo-controller essence in the rotary course of eccentric wheel close to linear change, therefore
The rotation angle of true control eccentric, can be accurately controlled the degree that is squeezed of infusion tube, disposable defeated accurately to control
The drop speed of liquid device；So the utility model, which can be increased substantially, drips the precision of speed control, it can be achieved that facing to disposable transfusion device
The accurate regulation of bed speed of intravenous infusion.
Detailed description of the invention
The utility model is described in further detail in the following with reference to the drawings and specific embodiments:
Fig. 1 is the structural schematic diagram of drop-speed controller structure in the utility model；
Fig. 2 is the schematic block circuit diagram of the intelligent intravenous transfusion device device of the utility model.
Specific embodiment
As shown in Figure 1, disclosed by the utility model is a kind of intelligent intravenous transfusion device device, it is applied to disposable transfusion device
On 1, inventive concept are as follows: intelligent intravenous transfusion device device is equipped with drop-speed controller structure；Drop-speed controller structure is equipped with shell 2, watches
Take steering engine 3 and eccentric wheel 4, one section of infusion tube 11 of Servo-controller 3 and disposable transfusion device 1 is each attached on shell 2, eccentric
Wheel 4 is mounted in the shaft 31 of Servo-controller 3, and the portion perimeter face of eccentric wheel 4 is as working face 41, the week of the working face 41
Extend to along Archimedes spiral, wherein shaft 31 axis of the Archimedes spiral perpendicular to Servo-controller 3, Archimedes's spiral shell
The pole of line is located on 31 axis of shaft of Servo-controller 3, also, the working face 41 of eccentric wheel 4 is fixed on infusion tube 11
Pipeline section on shell 2 is mutually close to.
To which eccentric wheel 4 can be driven by Servo-controller 3 and rotate in the forward direction and reversely rotate, utilize Archimedes spiral
Constant velocity spiral property, the working face 41 of eccentric wheel 4 is fixed on the pipe on shell 2 to infusion tube 11 in its rotary course
The extruding degree of section is linear change, this drop speed i.e. medical fluid for allowing for disposable transfusion device 1 passes through disposable transfusion device 1
Therefore drop speed also linear change can pass through the rotation of the accurate control eccentric 4 of Servo-controller 3 in the rotary course of eccentric wheel 4
Gyration can be accurately controlled the degree that is squeezed of infusion tube 11, accurately to control the drop speed of disposable transfusion device 1；Institute
With the utility model, which can be increased substantially, drips the precision of speed control, it can be achieved that clinical vein infusion speed to disposable transfusion device 1
The accurate regulation of degree.
On the basis of foregoing invention design, the utility model uses following preferred embodiment:
As preferred embodiments of the present invention: intelligent intravenous transfusion device device is additionally provided with microprocessor system, uses
Input circuit in input infusion information, the drop detection for detecting the drop in the drop pot 12 for instilling disposable transfusion device 1
Circuit, servo driving circuit, display circuit and the voltage conversion circuit for powering for microprocessor system；Microprocessor system
The infusion information and drop detection circuit that input circuit input can be received respectively detect that each dropping liquid drop instills in drop pot 12
When produced drop instill trigger signal, and microprocessor system can be worked by servo driving circuit control Servo-controller 3；
Display circuit and microprocessor system are electrically connected.
Above-mentioned microprocessor system can count the quantity that received drop instills trigger signal, and with it is identical when
Between the interval real-time drop that calculates disposable transfusion device 1 according to following formula one it is fast:
Wherein, ViReal-time drop speed for disposable transfusion device 1 in i-th of time interval, DiIt is microprocessor system i-th
Received drop instills the quantity of trigger signal in a time interval, and Δ T is the duration of each time interval.
The infusion information of above-mentioned input circuit input may include target drop speed；Microprocessor system can will be calculated
Drop speed is compared with target drop speed in real time for each, if drop speed is less than target drop speed in real time, passes through servo driving circuit
Control Servo-controller 3 drives eccentric wheel 4 to rotate in the forward direction a unit angle, soft with the 41 pairs of infusions of working face for reducing eccentric wheel 4
Pipe 11 is fixed on the extruding degree of the pipeline section on shell 2, if drop speed is greater than target drop speed in real time, passes through servo driving circuit
Controlling Servo-controller 3 drives eccentric wheel 4 to reversely rotate a unit angle, soft with the 41 pairs of infusions of working face for increasing eccentric wheel 4
Pipe 11 is fixed on the extruding degree of the pipeline section on shell 2, if drop speed is equal to target drop speed in real time, passes through servo driving circuit
It controls Servo-controller 3 and stops the driving rotation of eccentric wheel 4.
The infusion information of above-mentioned input circuit input can further include infusion capacity, and microprocessor system is preset with each drop
Instill the unit volume of the drop in the drop pot 12 of disposable transfusion device 1；Microprocessor system can be according to two He of following formula
Formula three calculates separately residual volume of solution and remaining transfusion time of this infusion at current time, and is shown in display circuit
It is upper:
Wherein, DoIndicate this residual volume of solution being infused at current time, DnIndicate this infusion current time
Medical fluid amount of droplets is exported, this has exported medical fluid amount of droplets DnEqual to microprocessor system from this infusion start time to working as
Drop received by the preceding moment instills the quantity of trigger signal, S0Expression infusion capacity, the unit volume of s ' expression drop, according to
According to the characteristic of the disposable transfusion device 1 of common-use size, the unit volume s ' of drop is generally preset as 0.05ml；ToIndicate that this is defeated
Remaining transfusion time of the liquid at current time, VoIndicate target drop speed.
As preferred embodiments of the present invention: intelligent intravenous transfusion device device is additionally provided with for disposable defeated
The heating unit that the medical fluid flowed through in liquid device 1 is heated and the temperature for detecting 1 place environment temperature of disposable transfusion device
Detection circuit, microprocessor system can control heating unit starting heating or stop heating, and microprocessor system can connect
The real time environment temperature that shrinkage temperature detection circuit detects, wherein the heating power of heating unit can be preferably 17w；
Microprocessor system can calculate each time drop speed V in real timeiWhen according to following formula four calculate heating unit exist
The operating condition at the current time lower heating temperature ability upper limit that can be heated:
tmax=6.1163 × t1-0.0187×Vi-0.3125×t1 2+0.0051×t1 3-0.0001×Vi 2[formula
Four]
Wherein, tmaxIndicate the heating temperature ability upper limit, t1Indicate real time environment temperature；
Also, the infusion information of input circuit input further includes highest safe heating temperature tsaft, microprocessor system will
The heating temperature ability upper limit t being calculated each timemaxWith highest safe heating temperature tsaftIt is compared, if tmax>
tsaft, then control heating unit and stop heating, if tmax≤tsaft, then heating unit starting heating is controlled.
As preferred embodiments of the present invention: drop detection circuit is primary to instilling using infrared photoelectric sensor
Property infusion apparatus 1 drop pot 12 in drop detected, and the output of infrared photoelectric sensor is believed using waveform shaping chip
Square-wave signal number is shaped as drop and instills trigger signal, wherein waveform shaping chip preferably uses model HCF4047BF
Multivibrator.The working principle of the drop detection circuit are as follows: since infrared photoelectric sensor can exclude visible light interference,
Drop can block the part infrared light that the transmitting tube of infrared photoelectric sensor issues when instilling in drop pot 12, infrared light intensity can occur
Change, so that the dark current of the reception pipe of infrared photoelectric sensor changes, voltage signal is converted by resistance, is enabled infrared
The output signal of photoelectric sensor becomes skip signal when drop instills in drop pot 12, and waveform shaping chip believes the jump
Number it is shaped as square-wave signal, enables microprocessor system accurate detection to the failing edge of square-wave signal, connect with statistics
The drop received instills the quantity of trigger signal.
As preferred embodiments of the present invention: intelligent intravenous transfusion device device is additionally provided with wireless transmission circuit；It is micro-
Processor system can be sent the data generated in the work of intelligent intravenous transfusion device device to remotely by wireless transmission circuit
Terminal, the data generated in the work include drop speed, temperature etc., in order to which staff passes through remote terminal while recognizing more
The real-time working condition of platform intelligence intravenous transfusion device device and its applied disposable transfusion device 1, wherein wireless transmission circuit uses
The Zigbee chip of model Xbee PRO, with small power consumption, long transmission distance, safety are good, indoor can transmit 180 meters
Etc. advantages, the network structure of Star topology is used with host computer, coordinator can be obtained and utilizes each infusion dress in network
Set subpackage and unpacking that IP address exclusive in a network carries out data, all parameters of such infusion device can pass to the end PC into
Row real-time display and monitoring guarantee that doctor and family members can understand transfusion condition and in time processing in real time.
As preferred embodiments of the present invention: intelligent intravenous transfusion device device is additionally provided with warning circuit；Alarm electricity
Road and microprocessor system are electrically connected.To which when intelligent intravenous transfusion device device breaks down, microprocessor system can
It controls warning circuit and issues sound-light alarm, such as: in drop speed V in real timeiBeyond the fast allowed band of the preset drop of microprocessor system
When, i.e., capable of emitting sound-light alarm.
As preferred embodiments of the present invention: microprocessor system is MSP430 single-chip minimum system, input
Circuit is keyboard, preferably uses 3*4 matrix keyboard, and voltage conversion circuit is that 5V direct current can be converted to 3.3V direct current
USB port circuit.
In addition, staff can also input ward number and the hospital bed number of patient by input circuit, it is aobvious using display circuit
Show ward number, hospital bed number, drop speed, environment temperature and remaining transfusion time etc.；Microprocessor system can usually enter low function
The wake-up to be interrupted such as consumption mode for example carries out waking up again when dripping speed detection when needing work；Moreover, the intelligence of the utility model
Intravenous transfusion device device can also add the i.e. additional keyboard of emergency stop circuit, to react emergency case.
To sum up, the utility model has precision high, easy-operating advantage, intelligent monitor and can manage data in real time,
The risk of patient in infusion process is effectively reduced, while significantly reducing the workload of doctor, there is great clinic to answer
With prospect and value.
The utility model is not limited to above-mentioned specific embodiment, according to above content, according to the ordinary skill of this field
Knowledge and customary means, under the premise of not departing from the utility model above-mentioned basic fundamental thought, the utility model can also be made
Equivalent modifications, replacement or the change of other diversified forms, all fall among the protection scope of the utility model.
Claims (7)
1. a kind of intelligence intravenous transfusion device device, is applied on disposable transfusion device (1), it is characterised in that: the intelligence vein
Infusion apparatus device is equipped with drop-speed controller structure；The drop-speed controller structure is equipped with shell (2), Servo-controller (3) and eccentric wheel
(4), the Servo-controller (3) and one section of infusion tube (11) of the disposable transfusion device (1) are each attached to the shell (2)
On, the eccentric wheel (4) is mounted in the shaft (31) of the Servo-controller (3), and the portion perimeter face of the eccentric wheel (4)
As working face (41), the circumferential of the working face (41) extends along Archimedes spiral, wherein the Archimedes spiral is vertical
Shaft (31) axis in the Servo-controller (3), the pole of the Archimedes spiral are located at turning for the Servo-controller (3)
On axis (31) axis, also, the working face (41) of the eccentric wheel (4) and the infusion tube (11) are fixed on shell (2)
Pipeline section be mutually close to.
2. intelligence intravenous transfusion device device according to claim 1, it is characterised in that: the intelligent intravenous transfusion device dress
It sets and is additionally provided with microprocessor system, the input circuit for inputting infusion information, instill the disposable transfusion device for detecting
(1) the drop detection circuit of the drop in drop pot (12), servo driving circuit, display circuit and for being the microprocessor
The voltage conversion circuit of system power supply；The microprocessor system can receive the infusion information of the input circuit input respectively
Produced drop instills triggering when detecting that each drop drop instills in the drop pot (12) with the drop detection circuit
Signal, and the microprocessor system can be worked by Servo-controller (3) described in the servo driving circuit control；It is described aobvious
Show that circuit and the microprocessor system are electrically connected.
3. intelligence intravenous transfusion device device according to claim 2, it is characterised in that: the intelligent intravenous transfusion device dress
It sets and is additionally provided with heating unit for being heated to the medical fluid flowed through in the disposable transfusion device (1) and for detecting
The temperature sensing circuit of environment temperature, the microprocessor system can control the heating where stating disposable transfusion device (1)
Unit starting heating or stop heating, and the microprocessor system can receive the temperature sensing circuit detect it is real-time
Environment temperature.
4. intelligence intravenous transfusion device device according to claim 2, it is characterised in that: the drop detection circuit uses
Infrared photoelectric sensor detects the drop in the drop pot (12) for instilling the disposable transfusion device (1), and uses waveform
The output signal of the infrared photoelectric sensor is shaped as square-wave signal as the drop and instills trigger signal by shaping chip.
5. intelligence intravenous transfusion device device according to claim 2, it is characterised in that: the intelligent intravenous transfusion device dress
It sets and is additionally provided with wireless transmission circuit；What the microprocessor system generated during the intelligent intravenous transfusion device device can work
Data are sent to remote terminal by the wireless transmission circuit, wherein the wireless transmission circuit uses model Xbee
The Zigbee chip of PRO
6. the intelligent intravenous transfusion device device according to claim 2 to 5 any one, it is characterised in that: the intelligence
Intravenous transfusion device device is additionally provided with warning circuit；The warning circuit and the microprocessor system are electrically connected.
7. the intelligent intravenous transfusion device device according to claim 2 to 5 any one, it is characterised in that: micro- place
Reason device system is MSP430 single-chip minimum system, and the input circuit is keyboard, and the voltage conversion circuit is the end USB
Mouth circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720841188.1U CN208301932U (en) | 2017-07-12 | 2017-07-12 | Intelligent intravenous transfusion device device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720841188.1U CN208301932U (en) | 2017-07-12 | 2017-07-12 | Intelligent intravenous transfusion device device |
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| CN208301932U true CN208301932U (en) | 2019-01-01 |
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| CN201720841188.1U Active CN208301932U (en) | 2017-07-12 | 2017-07-12 | Intelligent intravenous transfusion device device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107320815A (en) * | 2017-07-12 | 2017-11-07 | 南方医科大学 | Intelligent intravenous transfusion device device |
| CN114534017A (en) * | 2022-03-01 | 2022-05-27 | 杨上林 | Method and system for monitoring contact state of infusion cannula and vein |
-
2017
- 2017-07-12 CN CN201720841188.1U patent/CN208301932U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107320815A (en) * | 2017-07-12 | 2017-11-07 | 南方医科大学 | Intelligent intravenous transfusion device device |
| CN107320815B (en) * | 2017-07-12 | 2023-12-22 | 南方医科大学 | Intelligent intravenous infusion apparatus device |
| CN114534017A (en) * | 2022-03-01 | 2022-05-27 | 杨上林 | Method and system for monitoring contact state of infusion cannula and vein |
| CN114534017B (en) * | 2022-03-01 | 2024-01-16 | 杨上林 | Method and system for monitoring contact state of infusion cannula and vein |
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