CN108603780A - Liquid flow measurement device - Google Patents

Liquid flow measurement device Download PDF

Info

Publication number
CN108603780A
CN108603780A CN201680077994.4A CN201680077994A CN108603780A CN 108603780 A CN108603780 A CN 108603780A CN 201680077994 A CN201680077994 A CN 201680077994A CN 108603780 A CN108603780 A CN 108603780A
Authority
CN
China
Prior art keywords
pressure
slot
induction
mounting seat
liquid
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.)
Granted
Application number
CN201680077994.4A
Other languages
Chinese (zh)
Other versions
CN108603780B (en
Inventor
徐孟飚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goldvertech Systems Co ltd
Original Assignee
Goldvertech Systems Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Goldvertech Systems Co ltd filed Critical Goldvertech Systems Co ltd
Priority to PCT/CN2016/073501 priority Critical patent/WO2017132942A1/en
Publication of CN108603780A publication Critical patent/CN108603780A/en
Application granted granted Critical
Publication of CN108603780B publication Critical patent/CN108603780B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow

Abstract

A kind of liquid flow measurement device, its top is equipped with the minim pipette (18) shaped like dropping funnel, the impulse channel (112) communicated with inside is equipped with around dropper ontology (10), it is equipped with pressure-sensing module (30) in the outer end of impulse channel (112), it is arranged right below pressure communication pipe (20) in minim pipette (18), the bottom end of the pressure communication pipe (20) extends close to the position of impulse channel (112) inner end;When for small amount of flow measuring pipeline, it can concatenate into small flow line;When for transfusion system, it is to be serially connected in the infusion pipeline of liquid, in infusion process, liquid can enter in dropper ontology (10), pressure-sensing module (30) detects liquid and drips number, then this message is transferred to the backstage of hospital or included single-chip (101) calculates, and whether the flow velocity, flow and infusion that can calculate infusion stop or adverse current, achieve the effect that monitor infusion process automatically, avoid accidents.

Description

Liquid flow measurement device Technical field
The present invention relates to one kind applied to charging metering and control in biochemical reaction, chemical reaction, brewing, washup, and the device of medical transfusion, more particularly to it is a kind of shaped like dropping funnel, continuous flow is become into dropping liquid, the device for detecting amount of droplets can calculate flow speed, flow with the internal or external device of this cooperation according to this.
Background technique
It is always an extremely difficult project for Small flowrate measurement, it is more difficult especially for the flow measurement of flow velocity per hour only 1,2 liter or less or zero point several liters (such as 0.1-1.0L/h).Traditional flow measurement mode such as turbine, vortex-shedding meter, initial-flow is all larger, all cannot achieve the measurement of small flow;Or with the suspended body flowmeter that may be applicable in, it is also difficult to reach so small flow rates, therefore have to carry out flowmeter more accurate processing.
For purposes of illustration only, we are only illustrated existing technology with the infusion model of existing medical treatment, the prior art of other small flow measurings such as measure control that are used to feed is similar with the infusion model of existing medical treatment, therefore does not repeat.Please refer to Figure 10, it is that the infusion bag 80 that medical fluid is filled in inside is suspended on bracket, the disposable aspiration needle 82 of injectable human body is combined with the perfusion tube 81 of 80 bottom of infusion bag connection, intermediate in perfusion tube 81 concatenates a dropping funnel 83, the effect of the dropping funnel 83 is to provide the speed that medical staff observes dropping liquid, prevents from unexpectedly occurring.When achieving the effect that human body continuous injection medical fluid in use, be the vein of arm, the back of the hand or femoribus internus that disposable aspiration needle 82 is inserted in human body etc..
During said injector medical fluid, the mode for controlling transfusion speed is to be equipped with to adjust fluid-delivery valve 84 around perfusion tube 81, and the speed and flow of infusion are controlled using the size for adjusting the change negotiable area of perfusion tube 81 of fluid-delivery valve 84.But this for controlling the adjusting fluid-delivery valve 84 of transfusion speed, especially electric or pneumatic adjusting fluid-delivery valve 84 needs driven by energy when in use, and power consumption is bigger, weight ratio is heavier, therefore using not is so convenient.
Though the mode of aforementioned adjustment 81 flow of perfusion tube can adjust the speed of medical fluid injection human body, if but healthcare givers is it is to be understood that whether the speed of liquid medicine flow is appropriate, or whether the medical fluid in infusion bag 80 is when using up, all it can only examine, record from looking in a manual manner, and can just be learnt after being calculated the result of record, such artificial observation, the mode of record are in addition to cannot automatically sound an alarm notice in transfusion speed exception It, also can not the infusion bag 80 that more renews when using up of the medical fluid in time in infusion bag 80 other than medical staff.Further, since manual operation factor has the uncertainty of height, therefore the mode of this artificial observation record also be easy to cause and replaces the unexpected generation such as careless mistake and blood back flow not as good as medically such as infusion bag 80.
For the uncertainty for solving above-mentioned manual operation, there is creator to attempt the technical solution for proposing to solve, using to infusion bag weighing, or the counting means of photoelectric detection drop quantity is installed by dropping funnel, measures the speed and amount of infusion of infusion to a certain extent.
However the pipeline that the shortcomings that weighing method above-mentioned is perfusion tube is easy to be pullled, and influences the precision of measurement.The means of photoelectric detection are installed by dropping funnel, such as TW patent application the 85213537th, the Patent Case of entitled infusion monitor, it is that photoelectric detector is installed by dropping funnel, the disadvantage is that the dropping funnel specification of each producer's production, size is different, the different sizes of drop, this technology can only be useful in the product of oneself production, if it were not for the product of the dropping funnel production different size for each producer's specification, seek to the calculating that flow is carried out for the size of the product calibration drop of different manufacturers, since the producer of production dropping funnel is numerous, this is that a workload is very big, and hospital's task that also inconvenience is cooperated;In addition to this, the technology of this photoelectric detection dropping liquid number, also there is also be easy the problem of being interfered by various light sources.
Summary of the invention
Due to the difficulty of Small flowrate measurement, the invention is intended to design one kind to become a drip shaped like dropping funnel, by continuous flow, the device counted dropwise realizes the measurement of small flow.The effect of it can be accessed in any small flow conduit, can also be accessed in existing infusion apparatus pipeline, and droplet counting is carried out, and calculated the flow velocity of infusion, flow with this and judge whether infusion stops or the effect of adverse current, performance Auto-Sensing liquid medicine flow situation.
In order to achieve the above objectives, the present invention provides a kind of liquid flow measurement device, comprising:
One dropper ontology, equipped with a liquid storing tube, a mounting base is formed around the liquid storing tube, an impulse channel is worn in the mounting base, the inner end in the impulse channel is communicated with the inside of the liquid storing tube, a minim pipette is worn at the top of the liquid storing tube, the width of the minim pipette is narrower than the width of the liquid storing tube, forms a funnelform drip nozzle in the bottom of the minim pipette;
One pressure communication pipe, is fixed on the centre in the liquid storing tube, and the top of the pressure communication pipe is located at the underface of the drip nozzle, forms a pressure communication hole in the pressure communication pipe, and the bottom end in the pressure communication hole is compared with top close to the inner end in the impulse channel;And
One pressure-sensing mould group, set on the outer end in the impulse channel, which closes the outer end in the impulse channel, and the pressure-sensing mould group can measure the pressure change of the impulse inner fluid passage.
Further, the present invention is equipped with a data in the mounting base and transmits mould group, and data transmission mould group is electrically connected with the pressure-sensing mould group, to transmit the drop pressure data that the pressure-sensing mould group measures.
Preferably, data transmission mould group of the present invention includes a wireless transmission unit, the drop pressure data that the pressure-sensing mould group measures wirelessly is transmitted outward with the wireless transmission unit.
Preferably, the present invention is equipped with a single-chip in data transmission mould group, the single-chip is electrically connected with data transmission mould group, receive the drop pressure data of data transmission mould group transmission, and perceive out according to this minim pipette whether a little drip under, measure the drop quantity fallen, calculate the unit time and pass through the medicinal liquid flow and flow velocity of the minim pipette.
Further, liquid storing tube of the present invention be divided into that straight line is connected one on liquid storing tube and once liquid storing tube, the mounting base is divided into, under the upper mounting seat and a lower mounting seat that combine, on and, lower mounting seat be respectively formed at around liquid storage bottom of the tube and the lower liquid storing tube at the top of around, centre at upper mounting seat and lower mounting seat docking opens up a flow adjustment tank, the centre of the flow adjustment tank with it is upper, lower liquid storing tube communicates, a perforated plate is embedded in the centre of the flow adjustment tank, on the flow adjustment tank is divided by the perforated plate, lower two parts, two or more flow adjustment orifices are worn in perforated plate, when three or four flow adjustment orifices are arranged, its area ratio is 1:2:4 or 1:2:4:8;
An induction core slot is worn respectively in position of the mounting base to just each flow adjustment orifice, each induction core slot is vertical hole and inner end is communicated with the flow adjustment tank, the outer end of each induction core slot is closed end, a magnet is respectively equipped in the position that the mounting base corresponds to each induction core slot outer end, the induction coil of one electromagnetic induction pipe and a circular electromagnetic induction pipe is set around each induction core slot, it can reinforce the intensity of the induced magnetic field of induction coil generation using electromagnetic induction pipe, each induction coil is electrically connected with data transmission mould group, setting one can be attracted the induction plug of positioning by each magnet in each induction core slot, the inner end of each induction plug forms a pointed cone portion.Corresponding flow regulating orifices can be blocked when induction plug is fallen, make the flow zero by the flow regulating orifices by the construction that the aforementioned present invention is further provided with;When induction plug is raised, corresponding flow regulating orifices all-pass;In this way when three flow adjustment orifices are arranged, is combined using the folding situation for 3 flow regulating orifices that area ratio is 1:2:4, eight kinds of flows can occur;If being to be combined using the folding situation of 4 flow regulating orifices of 1:2:4:8, then 16 kinds of flows may be implemented when four flow adjustment orifices are arranged.
Further, impulse channel of the present invention be threaded through in the form of vertically extending it is described Upper mounting seat, the inner end in the impulse channel is communicated with the flow adjustment tank, in the recessed slot in the centre of the plate top surface with holes, it is located at the recessed outlet slot in position below the impulse channel in the plate top surface with holes, the connection slot and the connecting hole of the outlet slot are worn in the inside of the perforated plate, the bottom end pressure communication Guan Yiqi is plugged in the slot and fixes, and the pressure communication hole is communicated with the connecting hole.
Further, impulse channel of the present invention is that the upper mounting seat is threaded through in the form of vertically extending, and the data transmission mould group is removably to be incorporated in the upper mounting seat and be located at by the upper liquid storing tube;Each induction core slot is formed in the upper mounting seat, around corresponding each induction core slot, the coil slot of a recessed circular ring shape downward in the top surface of the upper mounting seat, each coil slot and each induction core slot are concentric, the coil pipe of a circular ring shape is placed in each coil slot, each induction coil is embedded in each coil pipe, each electromagnetic induction pipe is incorporated in the inner face of each coil pipe, the top of each coil pipe is connected to the bottom of data transmission mould group, the magnet is incorporated in the bottom of data transmission mould group, the pressure-sensing mould group is incorporated in the bottom of the pressure-sensing mould group.
The present invention is in use, the metering to feed in the fields such as biochemistry, chemical field or mining can be used in.It is serially connected in below with the present invention in the transfusion system of medical treatment and illustrates how the present invention uses using for example.When the present invention, which is serially connected in transfusion system, carries out metering use, it is by the bottom of insertion infusion bag in upper end of the invention, and the top of perfusion tube is connected to the bottom end of liquid storing tube, the adjusting fluid-delivery valve for adjusting infusion flow is equipped with around the perfusion tube, and a dropping funnel is concatenated between fluid-delivery valve and the present invention adjusting, a disposable aspiration needle is connected in the outer end of the perfusion tube, when disposable aspiration needle is pierced into human body, the medical fluid flowed out out of infusion bag can flow through the present invention, dropping funnel, perfusion tube and disposable aspiration needle and inject human body.
When in use equipped with transfusion system of the invention, medical fluid in infusion bag can first flow into the minim pipette of the invention shaped like dropping funnel, then the medical fluid in minim pipette can be intermittently dropped in liquid storing tube downwards in a manner of drop from drip nozzle, the medical fluid in liquid storing tube is set gradually to flood the top of perfusion tube and the bottom end in impulse channel, the liquid level of final medical fluid can be located at the centre of liquid storing tube and be lower than the top of the pressure communication pipe.
When medical fluid is out of the drip nozzle of minim pipette drippage liquid storing tube, the top of pressure communication pipe can be first dropped in, since liquid is incompressible and the transmitting direction-free characteristic of pressure, so that the pressure energy of medical fluid drippage pressure communication pipe is transferred to the position for being closer to impulse channel bottom end by the medical fluid in pressure communication hole, then as the medical fluid in liquid storing tube is transferred to the air in impulse channel, pressure-sensing mould group is allowed to measure the pressure change to drop quantity in the unit time, whether also sense has the drop of medical fluid to be dropped in liquid storing tube, then pressure message aforementioned pressure sensing mould group measured, the devices such as data processing centre or single-chip are transmitted in wireless or wired mode or element carries out calculation processing.
Since the size by the medical fluid drop in drip nozzle drippage liquid storing tube is close, and the size of every drops physic liquor can be measured by the minim pipette of identical size in advance, therefore when data processing centre or single-chip receive the pressure message that pressure-sensing mould group measures, the speed of the medicinal liquid flow and liquid medicine flow in the unit time can be calculated accordingly, it allows healthcare givers to understand the situation of transfusion system, is adjusted according to the flow that the demand of infusion carries out transfusion system;Or the message that data processing centre or single-chip can be dripped by no medical fluid, judge the dosage of the medical fluid in infusion bag and whether use up to need replacing, or the pressure for judging minim pipette may make to lead to the problem of blood back flow at disposable aspiration needle lower than the pressure in liquid storing tube.
Compared with prior art, the beneficial effects of the present invention are: the present invention is one kind shaped like dropping funnel, continuous flow is become into a drip, the device counted dropwise, with the design of pressure detector cooperation dropper ontology, measure the drop quantity fallen in dropper ontology, the transfusion speed that the micro computers such as data processing centre or single-chip calculate transfusion system automatically is provided, amount of infusion, whether need replacing infusion bag and the situation of blood back flow whether may occur, the error that may replace the manpower of manual record and may occur when avoiding manual record, the progress of energy immediately monitoring infusion process again, the process of automatically-monitored infusion, avoid medical careless mistake or artificial unexpected generation.
The present invention be one can be with the device of independent work, since device oneself has dropper ontology, therefore the size of the drop measured is fixed size, without cooperating the dropping funnel of transfusion system in addition to demarcate the size of drop, only it is to be understood that the capacity for the infusion bag being used cooperatively, it can be computed correctly out the storage of infusion bag, therefore may be used in any existing infusion bag, the cooperation of infusion bag manufacturer is not needed.In addition, of the invention is small in size, power consumption is also small, is implemented with using battery, with upper very convenient.When the present invention, which accesses various Feed lines, carries out charging metering, connection type can be inserted mode, thread connecting mode or other quick coupling connection types.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of present pre-ferred embodiments liquid flow measurement device;
Fig. 2 is another diagrammatic cross-section of present pre-ferred embodiments liquid flow measurement device;
Fig. 3 is the diagrammatic cross-section that present pre-ferred embodiments separate reusable part;
Fig. 4 is the top view of present pre-ferred embodiments perforated plate;
Fig. 5 is the implementation diagram that present pre-ferred embodiments are mounted on transfusion system;
Fig. 6 is the schematic diagram that present pre-ferred embodiments are mounted on transfusion system transmission medical fluid drop pressure data;
Fig. 7 is the schematic diagram that present pre-ferred embodiments are mounted on that transfusion system medical fluid stops drippage;
Fig. 8 is the schematic diagram that present pre-ferred embodiments are mounted on transfusion system adjustment medicinal liquid flow;
Fig. 9 is the diagrammatic cross-section that present pre-ferred embodiments add single-chip;
Figure 10 is the appearance diagram of existing transfusion system.
Symbol description:
Liquid storing tube on 10 dropper ontologies 11
111 upper mounting seat, 112 impulse channel
113 induction 114 coil slots of core slot
12 lower 121 lower mounting seats of liquid storing tube
13 sealing ring, 14 flow adjustment tank
15 perforated plate, 151 flow adjustment orifice
152 slot, 153 outlet slot
154 connecting hole, 16 magnet
17 induction 171 pointed cone portions of plug
18 minim pipette, 181 tip
182 drip nozzle, 19 rubber bumper
20 pressure communication pipe, 21 pan
22 pressure communication hole, 30 pressure-sensing mould group
40 driver, 41 coil pipe
42 induction coil, 43 electromagnetic induction pipe
50 data transmit 51 wireless transmission unit of mould group
The perforation of 60 outer cover, 61 outer cover
80 infusion bag, 81 perfusion tube
82 disposable aspiration needle, 83 dropping funnel
84 infusion 90 infusion bags of regulating valve
91 perfusion tube, 911 tip
92 disposable aspiration needles 93 adjust fluid-delivery valve
94 dropping funnel, 100 data processing centre
101 single-chips
Specific embodiment
For technical characteristic and practical effect of the invention can be understood in detail, and it can implement according to the content of specification, further with preferred embodiment as indicated in the drawings, detailed description are as follows.
Preferred embodiment as shown in figures 1-4, the invention is intended to design one kind to become a drip shaped like dropping funnel, by continuous flow, the device counted dropwise, it includes a dropper ontology 10 shaped like dropping funnel that it, which is constructed, and it is respectively arranged on a pressure communication pipe 20 of the dropper ontology 10,30, three drivers 40 of a pressure-sensing mould group, data transmission mould group 50 and an outer cover 60, in which:
The dropper ontology 10 is equipped with the upper liquid storing tube 11 of a straight tube-like and the lower liquid storing tube 12 of a straight tube-like, liquid storing tube 11 with the lower liquid storing tube 12 is arranged in a manner of being connected by upper and lower straight line on this, in one upper mounting seat 111 of bottom projection outwardly of upper 11 circumferential surface of liquid storing tube, in one lower mounting seat 121 of top projection outwardly of lower 12 circumferential surface of liquid storing tube, upper mounting seat 111 and lower mounting seat 121 are disc and upper and lower combination respectively, and engagement means can be bonding, fasten, sealed or riveted.
A sealing ring 13 is embedded around upper mounting seat 111 and 121 place of docking of lower mounting seat, a flow adjustment tank 14 is opened up with the centre at 121 place of docking of lower mounting seat in upper mounting seat 111, the flow adjustment tank 14 is discoidal space, and the top side among the flow adjustment tank 14 is communicated in upper liquid storing tube 11, lower liquid storing tube 12 respectively with intermediate bottom side, an impulse channel 112 is worn in the form of vertically extending in the side of upper mounting seat 111, the inner end in the impulse channel 112 is communicated with flow adjustment tank 14;
A perforated plate 15 is embedded in the centre of the flow adjustment tank 14, the perforated plate 15 is that plectane body and its center and the center of upper liquid storing tube 11 and lower liquid storing tube 12 are concentric, the periphery clamping of the perforated plate 15 is fixed between docking in upper mounting seat 111 with lower mounting seat 121, on flow adjustment tank 14 is divided by the perforated plate 15, lower two parts, three flow adjustment orifices 151 are worn vertically with circular and equally spaced arrangement mode around perforated plate 15, three flow adjustment orifices 151 are that the ratio of circular hole and area is the ratio of 1:2:4, the recessed slot 152 in center in 15 top surface of perforated plate, it is located at the recessed outlet slot 153 in position below the impulse channel 112 in 15 top surface of perforated plate, the connection slot 1 is worn in the inside of the perforated plate 15 52 and the outlet slot 153 connecting hole 154.
An induction core slot 113 is worn respectively in the position that upper mounting seat 111 is located above each flow adjustment orifice 151, each induction core slot 113 is vertical hole and inner end is communicated with the flow adjustment tank 14, the outer end of each induction core slot 113 is closed end, a magnet 16 is respectively equipped in the position that 111 top surface of upper mounting seat corresponds to each induction 113 outer end of core slot, setting one can be attracted the induction plug 17 of positioning by each magnet 16 in each induction core slot 113, the inner end of each induction plug 17 forms a pointed cone portion 171, corresponding each induction core slot 113 Around, the coil slot 114 of a recessed circular ring shape downward in the top surface of upper mounting seat 111, each coil slot 114 and each induction core slot 113 are concentric.
A vertical minim pipette 18 is placed at the top of upper liquid storing tube 11, the width of the minim pipette 18 is narrower than the width of liquid storing tube 11 Yu lower liquid storing tube 12, a tip 181 is formed at the top of the minim pipette 18, a funnelform drip nozzle 182 is formed in the bottom of the minim pipette 18, the drip nozzle 182 protrudes into the centre of 11 inner top of liquid storing tube, it is embedded a rubber bumper 19 in the bottom end of lower liquid storing tube 12, which closes the bottom end of lower liquid storing tube 12.
The pressure communication pipe 20 is vertical tube body and with bottom end is plugged in the slot 152 and is fixed on the centre in upper liquid storing tube 11, the top of the pressure communication pipe 20 forms a pan 21, the pan 21 is located at the underface of drip nozzle 182, a pressure communication hole 22 is formed in the inside of pressure communication pipe 20, the position on 22 top of pressure communication hole is higher than the position of 112 inner end of impulse channel, and the bottom end in the pressure communication hole 22 compared with top close to the inner end in the impulse channel 112, the pressure communication hole 22 is communicated with the connecting hole 154 of perforated plate 15, so that the inner end in impulse channel 112 is extended to the position around 112 inner end of impulse channel.
The pressure-sensing mould group 30, set on 111 top surface of upper mounting seat and positioned at the outer end in impulse channel 112, the pressure-sensing mould group 30 closes the outer end in the impulse channel 112, and the pressure-sensing mould group 30 can measure the pressure change of fluid such as air in the impulse channel 112.
Each driver 40 places the coil pipe 41 of a circular ring shape in each coil slot 114 in the form of it can slide up and down respectively, an induction coil 42 is embedded in each coil pipe 41, an electromagnetic induction pipe 43 is combined in the inside of each coil pipe 41, is looped around the induction coil 42 of each driver 40 and electromagnetic induction pipe 43 around the induction plug 17 in each induction core slot 113.
The shape of data transmission mould group 50 is torus and is removably incorporated in upper mounting seat 111, data transmission mould group 50 is looped around around liquid storing tube 11, the pressure-sensing mould group 30 is incorporated in the bottom of data transmission mould group 50, and the pressure-sensing mould group 30 is electrically connected with data transmission mould group 50, it includes a wireless transmission unit 51 that the data, which transmit mould group 50, the data that the pressure-sensing mould group 30 measures wirelessly are transmitted outward with wireless transmission unit 51, each magnet 16 is incorporated in the bottom of data transmission mould group 50, the top of the coil pipe 41 of each driver 40 is connected to the bottom of data transmission mould group 50, each induction coil 42 is electrically connected with data transmission mould group 50, so that each induction coil 42 is transmitted mould group 5 by the data 0 driving;When data transmission mould group 50 separates upper mounting seat 111 upwards, which can leave originally fixed together Position is in the position of upper mounting seat 111.
The outer cover 60 be circular lid and removably upper shield in upper mounting seat 111; the centre of the outer cover 60 wears outer cover perforation 61; it is set in around minim pipette 18 with outer cover perforation 61; data transmission mould group 50, pressure-sensing mould group 30 and each magnet 16 is contained in outer cover 60, by the protection of outer cover 60.
When present pre-ferred embodiments use, as shown in Figures 5 to 7, it is to be used in the transfusion system of medical treatment as example explanation, it is the bottom that the tip 181 of minim pipette 18 of the invention is pierced into infusion bag 90 when seated, the inside of the infusion bag 90 is equipped with medical fluid, the tip 911 of perfusion tube 91 is inserted into rubber bumper 19 again, it is equipped with one around perfusion tube 91 and adjusts fluid-delivery valve 93, a dropping funnel 94 is concatenated between fluid-delivery valve 93 and the present invention adjusting, a disposable aspiration needle 92 is connected with the outer end of the perfusion tube 91, the injection that human body carries out medical fluid can be pierced into the disposable aspiration needle 92.
Data of the invention are cooperated to transmit mould group 50 and each driver 40, a data processing centre 100 is equipped in outside of the invention, the wireless signal that the wireless transmission unit 51 of the acceptable data transmission mould group 50 of the present invention of the data processing centre 100 is transmitted, calculation processing is carried out accordingly, then by the result of calculation processing, judgement is compared with the numerical value of operator's hand input-data processing center 100, then the wireless signal for controlling each driver 40 is issued to wireless transmission unit 51 according to the result of judgement, it enables data transmission mould group 50 selectively control each driver 40 to operate.Detailed description are as follows for the process that aforementioned data processing center 100 cooperates the present invention to operate.
Please refer to Fig. 5, Fig. 6, when the tip of minim pipette 18 181 is pierced into infusion bag 90, medical fluid can be out of, infusion bag 90 first flows into dropper ontology 10 minim pipette 18, then the medical fluid in minim pipette 18 can intermittently be dripped downwards in a manner of drop from drip nozzle 182, drop is in the pan 21 on 20 top of pressure communication pipe, medical fluid is set to be gradually filled with lower liquid storing tube 12, flow adjustment tank 14, the pressure communication hole 22 of pressure communication pipe 20 and the connecting hole 154 in perforated plate 15, the liquid level of the medical fluid in dropper ontology 10 finally can be between the bottom end in impulse channel 112 and the top of pressure communication pipe 20.Then the medical fluid in dropper ontology 10 can be flowed outwardly by the perfusion tube 91 of 10 bottom of piercing dropper ontology to disposable aspiration needle 92, then from disposable aspiration needle 92 to people's internal injection.
During medical fluid is intermittently dripped by drip nozzle 182, the medical fluid for being dropped in pan 21 can apply the pressure of moment to the liquid in pressure communication hole 22, since liquid has the incompressible and transmitting direction-free characteristic of pressure, the pressure of this moment can be transferred to around 112 bottom end of impulse channel through the medical fluid in connecting hole 154, so that the medical fluid at this is applied pressure towards the air in impulse channel 112, makes pressure-sensing mould Group 30 can detect the size of instantaneous pressure caused by the medical fluid intermittently dripped as drip nozzle 182, the quantity of unit time drippage medical fluid and perceive that whether there is or not lasting drippage medical fluids, and above-mentioned pressure data is wirelessly transmitted to data processing centre 100 by the wireless transmission unit 51 of data transmission mould group 50 and is received.
Since the size of every drops physic liquor by the outlet of drip nozzle 182 drippage is close, and the size of every drops physic liquor can measure input data processing center 100 in advance, therefore when data processing centre 100 receives the pressure data that pressure-sensing mould group 30 detects, the speed of the medicinal liquid flow and liquid medicine flow in the unit time can be calculated accordingly, and by the flow of this medical fluid, compared with speed pre-enters the numerical value of data processing centre 100 with operator such as medical staff, then data processing centre 100 issues the wireless signal for controlling each driver 40 and adjusting medicinal liquid flow to the wireless transmission unit 51 of data transmission mould group 50, medicinal liquid flow is set to adjust to medical staff the numerical value for pre-entering data processing centre 100.
The size data of instantaneous pressure produced by aforementioned interval drippage medical fluid, can allow data processing centre 100 to exclude the data that pressure is significantly lower than mean values, exclude the situation of wrong report drop quantity.It is aforementioned that whether there is or not the data processings of lasting drippage medical fluid, it is then as known to the medical fluid capacity in infusion bag 90, if the medicine liquid volume that data processing centre 100 calculates the outflow of infusion bag 90 meets the medical fluid capacity of infusion bag 90, and the data of the output of pressure-sensing mould group 30 at this time show medical fluid without dripping off, at this moment data processing centre 100 can determine whether that the medical fluid in infusion bag 90 has been flow to end, issuing message notifies medical staff to replace infusion bag 90, data processing centre 100 issues the wireless signal for controlling each driver 40 and medical fluid being forbidden to flow out to the wireless transmission unit 51 of data transmission mould group 50 simultaneously.
Such as Fig. 5, shown in Fig. 7, if the data that pressure-sensing mould group 30 exports show the medical fluid without dripping off of drip nozzle 182, and data processing centre 100 calculates medical fluid capacity of the medicine liquid volume less than infusion bag 90 of the outflow of infusion bag 90, at this moment data processing centre 100 can determine whether that the pressure in minim pipette 18 is lower than, or it is equal with the pressure that perfusion tube 91 exports, the situation that blood back flow feeds back liquid pipe 91 may occur at disposable aspiration needle 92, at this moment data processing centre 100 issues the wireless signal for controlling each driver 40 and forbidding liquid medicine flow to the wireless transmission unit 51 of data transmission mould group 50.
Please refer to Fig. 8, when each driver 40 of control that the wireless transmission unit 51 of data transmission mould group 50 receives the transmission of data processing centre 100 adjusts medicinal liquid flow or stops the wireless signal of medical fluid outflow, it is according to required medicinal liquid flow, flow velocity height, the induction coil 42 of each driver 40 is selectively driven with data transmission mould group 50, make each induction coil 42 that each induction plug 17 be driven to move down or homing, so that each induction plug 17 is closed corresponding flow adjustment orifice 151 with its pointed cone portion 171, or makes pair The flow adjustment orifice 151 answered becomes open state.Aforementioned present invention is used to adjust the construction of infusion flow, without being provided at an outer portion with electronic, the pneumatic device of driving effect, so that the weight of present invention entirety can be as small as 40 g or so, compared to the existing transfusion system for needing additional driving device, only 1/50th weight uses the present invention upper more convenient.
As shown in Figure 4, since the area of three flow adjustment orifices 151 on perforated plate 15 is the ratio of 1:2:4, therefore the mode for driving each induction plug 17 to selectively close off each flow adjustment orifice 151 can be combined into the variation of 0 and 1 to 7 etc. 8 kind of circulation area, when needing higher medicinal liquid flow, flow velocity, it is to be all turned on three flow adjustment orifices 151, it is then all to be closed three flow adjustment orifices 151 with three induction plugs 17 when needing to forbid liquid medicine flow.The present invention is by way of the above-mentioned cooperation with data processing centre 100, it can reach and calculate infusion flow, flow velocity, whether detecting infusion bag 90 needs replacing and detects the effect whether disposable aspiration needle 92 occurs blood back flow situation, when playing infusion the effect of complete monitoring, the careless mistake and accident that avoid manual record transfusion speed that from may occurring.
Such as Fig. 1, shown in Fig. 3, since outer cover 60 of the invention is removable, and the pressure-sensing mould group 30 is incorporated in the bottom of data transmission mould group 50, each magnet 16 is incorporated in the bottom of data transmission mould group 50, the top of the coil pipe 41 of each driver 40 is connected to the bottom of data transmission mould group 50, therefore after use of the present invention, the dropper ontology 10 for contacting medical fluid is Biohazard Waste, it is part that can only be disposable, need to abandon not reproducible use later using finishing, but outer cover 60 and data transmission mould group 50 are together with the pressure-sensing mould group 30, the upper mounting seat 111 of each magnet 16 and the detachable dropper ontology 10 of each driver 40 is reused, therefore the disposable dropper ontology 10 of repeatable cooperation forms the present invention and reuses, reach section The effect of province's expense.
The present invention removes aforementioned preferred embodiment, it is to be provided at an outer portion with the data processing centre 100, receive the pressure data that data transmission mould group 50 is transmitted with external data processing centre 100, calculation processing is carried out with pressure data and is controlled other than each movement of driver 40, please refer to Fig. 9, the function of data processing centre 100 can also be replaced with a single-chip 101, the single-chip 101 is set in the data transmission mould group 50, make the single-chip 101 transmit mould group 50 with the data to be electrically connected, receive the pressure data that data transmission mould group 50 directly transmission pressure-sensing mould group 30 measures, and it controls each driver 40 and each induction plug 17 is driven to act, data transmission mould group 50 can be not provided with the wireless transmission unit 51 at this time.When data transmission mould group 50 separates the upper mounting seat 111 of dropper ontology 10, which can also transmit mould group 50 with data and dismantle together, equally have reusable effect.
The present invention removes aforementioned preferred embodiment, is to be divided to upper liquid storing tube 11 for two portions with lower liquid storing tube 12 Divide to form other than dropper ontology 10, the sealing ring 13 can also be not provided with, directly upper liquid storing tube 11 and surrounding upper mounting seat 111 and lower liquid storing tube 12 and surrounding lower mounting seat 121 are combined as a whole, become the construction of liquid storing tube and the mounting base being set to around the liquid storing tube.
The present invention removes aforementioned preferred embodiment, it is to be fixed on the pressure communication pipe 20 other than the center of the perforated plate 15, pressure communication pipe 20 can not also be fixed on to the center of perforated plate 15, but pressure communication pipe 20 with it is upper, lower liquid storing tube 11, the bracket of hollow out is equipped between 12, pressure communication pipe 20 is fixed on the centre in dropper ontology 10, the bottom end of pressure communication pipe 20 is flexible at this time and extends towards the direction of 112 bottom end of impulse channel, make bottom end of the bottom end in the pressure communication hole 22 than top closer to impulse channel 112, enabling the pressure of the medical fluid drop on drippage 20 top of pressure communication pipe can more successfully be transferred in impulse channel 112, it is measured for pressure-sensing mould group 30.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, and for those skilled in the art, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

  1. A kind of liquid flow measurement device characterized by comprising
    One dropper ontology, equipped with a liquid storing tube, a mounting base is formed around the liquid storing tube, an impulse channel is worn in the mounting base, the inner end in the impulse channel is communicated with the inside of the liquid storing tube, a minim pipette is worn at the top of the liquid storing tube, the width of the minim pipette is narrower than the width of the liquid storing tube, forms a funnelform drip nozzle in the bottom of the minim pipette;
    One pressure communication pipe, it is fixed on the centre in the liquid storing tube, the top of the pressure communication pipe is located at the underface of the drip nozzle, forms a pressure communication hole in the pressure communication pipe, and the bottom end in the pressure communication hole is compared with top close to the inner end in the impulse channel;And
    One pressure-sensing mould group, set on the outer end in the impulse channel, the pressure-sensing mould group closes the outer end in the impulse channel, and the pressure-sensing mould group can measure the pressure change of the impulse inner fluid passage.
  2. Liquid flow measurement device as described in claim 1, it is characterized in that, a data wherein are equipped in the mounting base and transmit mould group, and the data transmission mould group is electrically connected with the pressure-sensing mould group, to transmit the drop pressure data that the pressure-sensing mould group measures.
  3. Liquid flow measurement device as claimed in claim 2, it is characterized in that, wherein the data transmission mould group includes a wireless transmission unit, is wirelessly transmitted the drop pressure data that the pressure-sensing mould group measures outward with the wireless transmission unit.
  4. Liquid flow measurement device as claimed in claim 2, it is characterized in that, wherein a single-chip is equipped in data transmission mould group, the single-chip is electrically connected with data transmission mould group, receive the drop pressure data of data transmission mould group transmission, and perceive according to this minim pipette whether a little drip under, measure the drop quantity fallen, calculate medicinal liquid flow and flow velocity that the unit time passes through the minim pipette.
  5. Liquid flow measurement device as described in any one of claim 2-3, it is characterized in that, wherein the liquid storing tube be divided into that straight line is connected one on liquid storing tube and once liquid storing tube, the mounting base is divided into, under the upper mounting seat and a lower mounting seat that combine, on and, lower mounting seat be respectively formed at around liquid storage bottom of the tube and the lower liquid storing tube at the top of around, centre at upper mounting seat and lower mounting seat docking opens up a flow adjustment tank, the centre of the flow adjustment tank with it is upper, lower liquid storing tube communicates, a perforated plate is embedded in the centre of the flow adjustment tank, on the flow adjustment tank is divided by the perforated plate, lower two parts, multiple Liu amount Tiao Zheng Kong ﹔ are worn around perforated plate
    An induction core slot is worn respectively in position of the mounting base to just each flow adjustment orifice, respectively incudes core Slot is vertical hole and inner end is communicated with the flow adjustment tank, the outer end of each induction core slot is closed end, a magnet is respectively equipped in the position that the mounting base corresponds to each induction core slot outer end, the induction coil of one electromagnetic induction pipe and a circular electromagnetic induction pipe is set around each induction core slot, each induction coil is electrically connected with data transmission mould group, setting one can be attracted the induction plug of positioning by each magnet in each induction core slot, and each inner end for incuding plug forms a pointed cone portion.
  6. Liquid flow measurement device as claimed in claim 5, it is characterized in that, wherein the impulse channel is that the upper mounting seat is threaded through in the form of vertically extending, the inner end in the impulse channel is communicated with the flow adjustment tank, in the recessed slot in the centre of the plate top surface with holes, it is located at the recessed outlet slot in position below the impulse channel in the plate top surface with holes, the connecting hole of the connection slot and the outlet slot is worn in the inside of the perforated plate, the bottom end pressure communication Guan Yiqi is plugged in the slot and fixes, the pressure communication hole is communicated with the connecting hole.
  7. Liquid flow measurement device as claimed in claim 5, it is characterized in that, wherein the impulse channel is that the upper mounting seat is threaded through in the form of vertically extending, and the data transmission mould group is removably to be incorporated in the upper mounting seat and be located at by the upper liquid storing tube;Each induction core slot is formed in the upper mounting seat, around corresponding each induction core slot, the coil slot of a recessed circular ring shape downward in the top surface of the upper mounting seat, each coil slot and each induction core slot are concentric, the coil pipe of a circular ring shape is placed in each coil slot, each induction coil is embedded in each coil pipe, each electromagnetic induction pipe is incorporated in the inner face of each coil pipe, the top of each coil pipe is connected to the bottom of the data transmission mould group, the magnet is incorporated in the bottom of the data transmission mould group, the pressure-sensing mould group is incorporated in the bottom of the pressure-sensing mould group.
  8. Liquid flow measurement device as claimed in claim 4, it is characterized in that, wherein the liquid storing tube be divided into that straight line is connected one on liquid storing tube and once liquid storing tube, the mounting base is divided into, under the upper mounting seat and a lower mounting seat that combine, on and, lower mounting seat be respectively formed at around liquid storage bottom of the tube and the lower liquid storing tube at the top of around, centre at upper mounting seat and lower mounting seat docking opens up a flow adjustment tank, the centre of the flow adjustment tank with it is upper, lower liquid storing tube communicates, a perforated plate is embedded in the centre of the flow adjustment tank, on the flow adjustment tank is divided by the perforated plate, lower two parts, multiple Liu amount Tiao Zheng Kong ﹔ are worn around perforated plate
    An induction core slot is worn respectively in position of the mounting base to just each flow adjustment orifice, each induction core slot is vertical hole and inner end is communicated with the flow adjustment tank, the outer end of each induction core slot is closed end, it is respectively equipped with a magnet in the position that the mounting base corresponds to each induction core slot outer end, in each induction core The induction coil of one electromagnetic induction pipe and a circular electromagnetic induction pipe is set around slot, each induction coil is electrically connected with data transmission mould group, the single-chip can control other induction coil to act on, setting one can be attracted the induction plug of positioning by each magnet in each induction core slot, and each inner end for incuding plug forms a pointed cone portion.
  9. Liquid flow measurement device as claimed in claim 8, it is characterized in that, wherein the impulse channel is that the upper mounting seat is threaded through in the form of vertically extending, the inner end in the impulse channel is communicated with the flow adjustment tank, in the recessed slot in the centre of the plate top surface with holes, it is located at the recessed outlet slot in position below the impulse channel in the plate top surface with holes, the connecting hole of the connection slot and the outlet slot is worn in the inside of the perforated plate, the bottom end pressure communication Guan Yiqi is plugged in the slot and fixes, the pressure communication hole is communicated with the connecting hole.
  10. Liquid flow measurement device as claimed in claim 8, it is characterized in that, wherein the impulse channel is that the upper mounting seat is threaded through in the form of vertically extending, and the data transmission mould group is removably to be incorporated in the upper mounting seat and be located at by the upper liquid storing tube;Each induction core slot is formed in the upper mounting seat, around corresponding each induction core slot, the coil slot of a recessed circular ring shape downward in the top surface of the upper mounting seat, each coil slot and each induction core slot are concentric, the coil pipe of a circular ring shape is placed in each coil slot, each induction coil is embedded in each coil pipe, each electromagnetic induction pipe is incorporated in the inner face of each coil pipe, the top of each coil pipe is connected to the bottom of the data transmission mould group, the magnet is incorporated in the bottom of the data transmission mould group, the pressure-sensing mould group is incorporated in the bottom of the pressure-sensing mould group.
CN201680077994.4A 2016-02-04 2016-02-04 Liquid flow measuring device Active CN108603780B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/073501 WO2017132942A1 (en) 2016-02-04 2016-02-04 Liquid flow measuring device

Publications (2)

Publication Number Publication Date
CN108603780A true CN108603780A (en) 2018-09-28
CN108603780B CN108603780B (en) 2020-02-07

Family

ID=59499130

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201680077994.4A Active CN108603780B (en) 2016-02-04 2016-02-04 Liquid flow measuring device

Country Status (2)

Country Link
CN (1) CN108603780B (en)
WO (1) WO2017132942A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10724880B2 (en) 2017-12-28 2020-07-28 Onicon Incorporated Scalable monolithic sensor assembly, controller, and methods of making and installing same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432761A (en) * 1981-06-22 1984-02-21 Abbott Laboratories Volumetric drop detector
CN1340151A (en) * 1999-01-14 2002-03-13 S.F.M.精细流量计有限公司 Droplet counter for low fow rates
CN102671255A (en) * 2012-05-24 2012-09-19 李益民 Novel infusion pump technology
US20140171868A1 (en) * 2012-12-13 2014-06-19 Zyno Medical, LLC. Multifunction Capacitive Sensor for Medical Pump
CN204208121U (en) * 2014-11-06 2015-03-18 北华大学 Be with the transfusion system that statistics have shown
CN104721917A (en) * 2015-03-23 2015-06-24 李宏 Transfusion drop number measurement system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432761A (en) * 1981-06-22 1984-02-21 Abbott Laboratories Volumetric drop detector
CN1340151A (en) * 1999-01-14 2002-03-13 S.F.M.精细流量计有限公司 Droplet counter for low fow rates
CN102671255A (en) * 2012-05-24 2012-09-19 李益民 Novel infusion pump technology
US20140171868A1 (en) * 2012-12-13 2014-06-19 Zyno Medical, LLC. Multifunction Capacitive Sensor for Medical Pump
CN204208121U (en) * 2014-11-06 2015-03-18 北华大学 Be with the transfusion system that statistics have shown
CN104721917A (en) * 2015-03-23 2015-06-24 李宏 Transfusion drop number measurement system

Also Published As

Publication number Publication date
CN108603780B (en) 2020-02-07
WO2017132942A1 (en) 2017-08-10

Similar Documents

Publication Publication Date Title
EP1144961B1 (en) Droplet counter for low flow rates
CN102512723B (en) Self-exhaust and bubble-proof transfusion apparatus
KR20030029048A (en) Infusion of liquids into the human or animal body
CN108603780A (en) Liquid flow measurement device
CN108472446A (en) Liquid flow measurement device
CN106573104B (en) Dosage-dispensing device for infusion liquids
CN102813975A (en) Method for monitoring transfusion based on effect of sudden change of dropping speed of needle head
CN104707201A (en) Intelligent infusion tube
TWI576126B (en) A device of liquid flow measurement
TWI600444B (en) A device of liquid flow measurement
CN202920709U (en) Safe dripping device applied to infusion device
CN202590055U (en) Disposable precise filtering bag type infusion apparatus provided with three-way valve
CN208641413U (en) Automatic infusion device with filter membrane
CN208974803U (en) A kind of precisely fine tuning infusion apparatus
CN215460915U (en) Infusion apparatus with linear output function
CN203291304U (en) Disposable automatic air-exhausting liquid-stopping infusion set
CN210644757U (en) Infusion apparatus flow velocity detection device
CN208877560U (en) Mo Feishi dropper liquid level warning clip
CN107096075A (en) A kind of drainage system
CN215023820U (en) Mofei's burette flow rate measuring device
CN108744152B (en) Transfusion system
CN209838665U (en) Calibration auxiliary workbench for infusion pump
CN209405377U (en) A kind of bag transfusion system
CN207493022U (en) It is a kind of conveniently, the transfusion system of accurate measurements infusion flow
CN212282392U (en) Transfusion system for diabetes patient

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant