WO2017132942A1 - Dispositif de mesure de l'écoulement d'un liquide - Google Patents

Dispositif de mesure de l'écoulement d'un liquide Download PDF

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Publication number
WO2017132942A1
WO2017132942A1 PCT/CN2016/073501 CN2016073501W WO2017132942A1 WO 2017132942 A1 WO2017132942 A1 WO 2017132942A1 CN 2016073501 W CN2016073501 W CN 2016073501W WO 2017132942 A1 WO2017132942 A1 WO 2017132942A1
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WIPO (PCT)
Prior art keywords
tube
pressure
induction
mounting seat
liquid storage
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Ceased
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PCT/CN2016/073501
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English (en)
Chinese (zh)
Inventor
徐孟飚
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Goldvertech Systems Co Ltd
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Goldvertech Systems Co Ltd
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Application filed by Goldvertech Systems Co Ltd filed Critical Goldvertech Systems Co Ltd
Priority to PCT/CN2016/073501 priority Critical patent/WO2017132942A1/fr
Priority to CN201680077994.4A priority patent/CN108603780B/zh
Publication of WO2017132942A1 publication Critical patent/WO2017132942A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring 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

Definitions

  • the invention relates to a device for applying biochemical reaction, chemical reaction, brewing, washing, feeding and measuring, and medical infusion, in particular to a shape like a dripper, which changes the continuous flow into a drip, detection liquid
  • the device for the number of drops, the internal or external device cooperating with this, can calculate the flow rate and flow rate accordingly.
  • the infusion bag 80 filled with the liquid medicine is suspended on the bracket, and the infusion tube 81 connected to the bottom of the infusion bag 80 is combined with the disposable needle 82 of the injectable body, and a drop is connected in the middle of the infusion tube 81.
  • Bucket 83 the function of the drip bucket 83 is to provide the medical staff to observe the speed of the drip to prevent accidental occurrence.
  • the disposable needle 82 is inserted into the vein of the human body's arm, the back of the hand or the inner side of the thigh to achieve the effect of continuously injecting the liquid to the human body.
  • the infusion rate is controlled by providing an infusion valve 84 around the infusion tube 81, and the infusion valve 84 is used to change the flowable area of the infusion tube 81 to control the speed and flow rate of the infusion.
  • the regulating infusion valve 84 for controlling the infusion rate in particular the electric or pneumatic regulating infusion valve 84, requires energy driving during use, and the power consumption is relatively large and the weight is relatively heavy, so the use is not so convenient.
  • the manner of adjusting the flow rate of the infusion tube 81 can adjust the speed of injecting the liquid into the human body.
  • the medical personnel need to know whether the speed of the liquid medicine is appropriate, or whether the liquid medicine in the infusion bag 80 is used up, it can only be artificial.
  • the way of observing, recording, and calculating the recorded results can be known.
  • This kind of manual observation and recording method can not automatically issue an alarm notification except when the infusion speed is abnormal.
  • Other than the medical staff it is also impossible to replace the new infusion bag 80 when the liquid medicine in the infusion bag 80 is used up in a timely manner.
  • the human operation factor has a high degree of uncertainty, such a manual observation and recording method is also likely to cause accidental occurrence such as medical negligence and blood counterflow such as inability to replace the infusion bag 80.
  • the disadvantage of the aforementioned weighing method is that the pipeline of the infusion tube is easily pulled, which affects the accuracy of the measurement.
  • the method of installing photoelectric detection near the dripper such as TW Patent Application No. 85213537, the patent case of the invention of the drip monitor, is to install a photodetector beside the dripper, and the disadvantage is that the dripper specifications produced by various manufacturers Different sizes and different sizes. This technology can only be applied to products that are produced by us. If it is not for the different specifications of the dropper to produce different specifications, it is necessary to calibrate the size of the products for different manufacturers.
  • the calculation of the flow rate due to the large number of manufacturers of drip buckets, is a task that is very labor intensive, and the hospital is not convenient to cooperate.
  • the technology of detecting the number of drops of photoelectricity is also easy to be affected by each The problem of light source interference.
  • the present invention intends to design a device such as a drip bucket, which converts a continuous flow into a trickle flow, and performs a drop-by-drop counting to realize measurement of a small flow rate. It can be connected to any small flow pipeline, or it can be connected to the existing infusion tube to count the droplets. In order to calculate the flow rate and flow rate of the infusion, and to determine whether the infusion is stopped or reversed, the automatic detection drug can be used. The effect of fluid flow conditions.
  • the present invention provides a liquid flow measuring device comprising:
  • a dropper body is provided with a liquid storage tube, and a mounting seat is formed around the liquid storage tube, and a pressure guiding passage is formed in the mounting seat, and an inner end of the pressure guiding passage communicates with an inner portion of the liquid storage tube.
  • a liquid drop tube is disposed on the top of the liquid storage tube, the width of the liquid drop tube is narrower than the width of the liquid storage tube, and a funnel-shaped drip nozzle is formed at the bottom of the liquid drop tube;
  • a pressure communication tube fixed in the middle of the liquid storage tube, the top end of the pressure communication tube is located directly below the drip nozzle, and a pressure communication hole is formed in the pressure communication tube, the bottom end of the pressure communication hole is closer to the top end The inner end of the pressure channel;
  • a pressure sensing module is disposed at an outer end of the pressure guiding channel, the pressure sensing module enclosing an outer end of the pressure guiding channel, and the pressure sensing module can measure the pressure of the fluid in the pressure guiding channel Variety.
  • the present invention is provided with a data transmission module in the mounting base, and the data transmission module is electrically connected to the pressure sensing module, thereby transmitting the droplet pressure data measured by the pressure sensing module.
  • the data transmission module of the present invention comprises a wireless transmission unit, wherein the wireless transmission unit transmits the droplet pressure data measured by the pressure sensing module to the wireless manner.
  • the present invention is provided with a single chip on the data transmission module, the single chip is electrically connected to the data transmission module, accepts the droplet pressure data transmitted by the data transmission module, and according to the Whether the drip tube drops a little, measures the number of dropped drops, and calculates the flow rate and flow rate of the drug solution passing through the drip tube per unit time.
  • the liquid storage tube according to the present invention is divided into an upper liquid storage tube and a lower liquid storage tube which are connected in a straight line
  • the mounting seat is divided into an upper mounting seat and a lower mounting seat which are combined with the upper and lower sides
  • the lower mounting seat is respectively formed around the bottom of the upper liquid storage tube and around the top of the lower liquid storage tube, and a flow adjusting groove is opened in the middle of the interface between the upper mounting seat and the lower mounting seat, and the flow adjusting groove is in the middle and the upper side.
  • the lower liquid storage tube communicates with a perforated plate embedded in the middle of the flow regulating groove, and the perforated plate divides the flow regulating groove into upper and lower portions, and two or more flows are bored in the perforated plate. Adjust the hole, when setting three or four flow adjustment holes, the area ratio is 1:2:4 or 1:2:4:8;
  • An induction core slot is respectively disposed at a position of each of the flow adjustment holes of the mounting seat, each of the induction core slots is a vertical hole, and an inner end is communicated with the flow adjustment groove, and an outer end of each of the induction core slots is a closed end.
  • a magnet is respectively disposed at a position corresponding to an outer end of each of the induction core slots, and an electromagnetic induction tube and an induction coil surrounding the electromagnetic induction tube are disposed around each of the induction core slots, and the electromagnetic induction tube is used to strengthen the induction coil.
  • each induction coil is electrically connected to the data transmission module, and an induction core rod that can be attracted and positioned by each magnet is disposed in each of the induction core slots, and an inner end of each induction core rod forms a tapered portion.
  • the foregoing further configuration of the present invention can block the corresponding flow adjustment hole when the induction core rod is dropped, so that the flow rate through the flow adjustment hole is zero; when the induction core rod is raised, the corresponding flow adjustment hole is fully connected.
  • eight flow rates can be used by combining the opening and closing conditions of the three flow adjustment holes with an area ratio of 1:2:4; if four flow adjustment holes are provided, it is utilized. Sixteen kinds of flow rates can be realized by combining the opening and closing conditions of the four flow adjustment holes of 1:2:4:8.
  • the pressure guiding passage of the present invention is disposed in the form of extending in the up and down direction An upper mounting end, the inner end of the pressure guiding passage is in communication with the flow adjusting groove, and a slot is recessed in a middle of the top surface of the perforated plate, and the top surface of the perforated plate is located below the pressure guiding channel An outlet slot is recessed, and a connecting hole communicating with the slot and the outlet slot is bored in the inner portion of the orifice plate, and the pressure communication tube is fixed at the bottom end of the slot, the pressure is fixed The communication hole communicates with the connection hole.
  • the pressure guiding passage of the present invention is disposed in the upper mounting seat in a manner of extending in the up and down direction, and the data transmission module is detachably coupled to the upper mounting seat and located
  • the upper sensing tube is formed on the upper mounting seat, corresponding to the periphery of each of the sensing core slots, and a circular coil groove is recessed downwardly on the top surface of the upper mounting seat.
  • Each coil slot is concentric with each of the induction core slots, and a circular coil tube is disposed in each coil slot, and the induction coils are embedded in the coil tubes, and the electromagnetic induction tubes are combined in the coil tubes.
  • the inner surface of each coil tube is connected to the bottom of the data transmission module, the magnet is coupled to the bottom of the data transmission module, and the pressure sensing module is coupled to the bottom of the pressure sensing module.
  • the invention When the invention is used, it can be used for metering in the fields of biochemistry, chemical engineering or mining. The following is a description of how the present invention can be used by way of example in which the present invention is used in series in a medical infusion system.
  • the invention When the invention is serially connected in the infusion system for metering, the upper end of the invention is inserted into the bottom of the infusion bag, and the top end of the infusion tube is connected to the bottom end of the liquid storage tube, and the infusion solution is arranged around the infusion tube.
  • the drug solution can be injected into the human body through the present invention, a drip bucket, an infusion tube, and a disposable needle.
  • the liquid medicine in the infusion bag first flows into the drip tube of the present invention, such as a dripper, and then the liquid medicine in the drip tube is intermittently dropped from the drip nozzle in a drip manner. Falling in the liquid storage tube, the liquid medicine in the liquid storage tube is gradually flooded through the top end of the infusion tube and the bottom end of the pressure guiding channel, and the liquid level of the final medical liquid solution is located in the middle of the liquid storage tube and lower than the top end of the pressure communication tube .
  • the drip tube of the present invention such as a dripper
  • the medicine droplet falls into the pressure communication tube.
  • the pressure can be transmitted from the liquid in the pressure communication hole to a position closer to the bottom end of the pressure guiding channel, and then the pressure sensing module measures the unit time as the liquid in the liquid storage tube is transferred to the air in the pressure guiding channel.
  • the pressure change of the number of droplets inside also senses whether there is a drop of the liquid medicine in the liquid storage tube, and then transmits the pressure information measured by the pressure sensing module to the data processing center wirelessly or by wire. Or a device or component such as a single chip performs calculation processing.
  • the data processing center or the single wafer receives the pressure sensing
  • the flow rate of the liquid medicine and the speed of the liquid medicine flow per unit time can be calculated, so that the medical personnel can understand the condition of the infusion system and adjust the flow rate of the infusion system according to the demand of the infusion solution; or
  • the data processing center or the single wafer can judge the amount of the liquid medicine in the infusion bag and whether it needs to be replaced after the message is not dropped, or judge that the pressure of the drip tube is lower than the pressure in the liquid storage tube.
  • the present invention has the beneficial effects that the present invention is a device such as a drip bucket, which converts a continuous flow rate into a trickle flow, and performs a drop-by-drop counting, with a pressure detector matched with the design of the dropper body. Measuring the number of drops in the dropper body, providing a data processing center or a single chip and other microcomputers to automatically calculate the infusion rate of the infusion system, the amount of infusion, whether the infusion bag needs to be replaced, and whether blood reverse flow may occur, instead of manual recording The manpower and the errors that can occur when avoiding manual recording, and the ability to monitor the progress of the infusion process, automatically monitor the infusion process, and avoid medical negligence or human accidents.
  • a drip bucket which converts a continuous flow rate into a trickle flow, and performs a drop-by-drop counting, with a pressure detector matched with the design of the dropper body. Measuring the number of drops in the dropper body, providing a data processing center or a single chip and
  • the invention is a device which can operate independently. Since the device itself has a dropper body, the size of the measured drip is fixed, and it is not necessary to match the drip of the infusion system to calibrate the size of the drip, as long as the infusion is used. The capacity of the bag can correctly calculate the stock of the infusion bag, so it can be used on any existing infusion bag, without the cooperation of the infusion bag manufacturer. In addition, the invention has the advantages of small volume, low power consumption, and can be implemented by using a battery, and is very convenient to use. When the invention is connected to various feeding pipelines for feeding metering, the connection mode may be an insertion mode, a screw connection method or other quick joint connection manner.
  • FIG. 1 is a schematic cross-sectional view showing a liquid flow measuring device according to a preferred embodiment of the present invention
  • FIG. 2 is another schematic cross-sectional view of a liquid flow measuring device according to a preferred embodiment of the present invention.
  • Figure 3 is a schematic cross-sectional view showing a reusable portion of a preferred embodiment of the present invention.
  • Figure 4 is a plan view of a perforated plate in accordance with a preferred embodiment of the present invention.
  • Figure 5 is a schematic view showing the implementation of the infusion system according to a preferred embodiment of the present invention.
  • Figure 6 is a schematic view showing the data of the drip pressure of the drug solution installed in the infusion system according to a preferred embodiment of the present invention
  • Figure 7 is a schematic view showing the suspension of the liquid medicine installed in the infusion system according to the preferred embodiment of the present invention.
  • Figure 8 is a schematic view showing the flow rate of adjusting the liquid medicine installed in the infusion system according to a preferred embodiment of the present invention.
  • Figure 9 is a cross-sectional view showing the addition of a single wafer in accordance with a preferred embodiment of the present invention.
  • Fig. 10 is a schematic view showing the appearance of a conventional infusion system.
  • the present invention is intended to design a device such as a drip bucket, which converts a continuous flow into a trickle flow, and counts by drop, the configuration of which comprises a drop like a drip bucket.
  • the tube body 10 and a pressure communication tube 20, a pressure sensing module 30, three drivers 40, a data transmission module 50 and an outer cover 60 respectively disposed on the dropper body 10, wherein:
  • the dropper body 10 is provided with an upper tubular upper storage tube 11 and a straight tubular lower storage tube 12, and the upper storage tube 11 and the lower storage tube 12 are arranged in a straight line above and below, and are stored thereon.
  • An upper mounting seat 111 is protruded outwardly from the bottom of the circumferential surface of the liquid pipe 11, and a mounting seat 121 is protruded outwardly at the top of the circumferential surface of the lower liquid storage pipe 12.
  • the upper mounting seat 111 and the lower mounting seat 121 are respectively disc bodies. The combination of upper and lower can be bonded, fastened, locked or riveted.
  • a sealing ring 13 is embedded around the abutment of the upper mount 111 and the lower mount 121, and a flow adjusting slot 14 is defined in the middle of the abutment between the upper mount 111 and the lower mount 121.
  • the flow regulating slot 14 is a disc. a space of a shape, and a top side and a middle bottom side of the flow regulating groove 14 are respectively communicated with the upper liquid storage tube 11 and the lower liquid storage tube 12, and the side of the upper mounting seat 111 is extended in the vertical direction.
  • a pressure guiding passage 112 is disposed, and an inner end of the pressure guiding passage 112 communicates with the flow regulating groove 14;
  • a perforated plate 15 is embedded in the middle of the flow regulating groove 14, and the perforated plate 15 is a circular plate body and its center is concentric with the center of the upper liquid storage tube 11 and the lower liquid storage tube 12, and the periphery of the perforated plate 15 It is clamped between the upper mounting seat 111 and the lower mounting seat 121.
  • the perforated plate 15 divides the flow regulating groove 14 into upper and lower portions, and is surrounded and equally spaced around the perforated plate 15.
  • Three flow adjustment holes 151 are vertically disposed in the arrangement manner, three flow adjustment holes 151 are circular holes and the ratio of the area is 1:2:4, and a slot 152 is recessed in the center of the top surface of the perforated plate 15 An outlet groove 153 is recessed in a position of the top surface of the orifice plate 15 below the pressure guiding passage 112. A connecting hole 154 communicating with the socket 152 and the outlet groove 153 is bored in the interior of the orifice plate 15.
  • An induction core slot 113 is respectively disposed at a position above the flow adjusting hole 151 of the upper mounting seat 111.
  • Each of the sensing core slots 113 is a vertical hole and the inner end is in communication with the flow regulating groove 14, and each of the sensing core slots 113
  • the outer end is a closed end, and a magnet 16 is respectively disposed at a position corresponding to an outer end of each of the sensing core slots 113 at a top surface of the upper mounting base 111, and an inductive core rod 17 which can be attracted and positioned by each magnet 16 is disposed in each of the sensing core slots 113.
  • the inner end of each of the induction core rods 17 forms a tapered portion 171 corresponding to each of the induction core slots 113.
  • a circular coil groove 114 is recessed downward, and each coil groove 114 is concentric with each of the induction core grooves 113.
  • a vertical drip tube 18 is disposed at the top of the upper reservoir tube 11.
  • the width of the drip tube 18 is narrower than the width of the upper reservoir tube 11 and the lower reservoir tube 12, at the top of the droplet tube 18
  • a tip end 181 is formed, and a funnel-shaped drip nozzle 182 is formed at the bottom of the drip tube 18.
  • the drip nozzle 182 extends into the center of the top of the upper liquid storage tube 11, and a bottom end of the lower liquid storage tube 12 is embedded.
  • a rubber block 19 that closes the bottom end of the lower reservoir tube 12.
  • the pressure communication tube 20 is a vertical tube body and is inserted in the slot 152 at the bottom end and fixed in the middle of the upper liquid storage tube 11.
  • the top end of the pressure communication tube 20 forms a bucket portion 21, the bucket portion 21 is located directly below the drip nozzle 182, and a pressure communication hole 22 is formed inside the pressure communication tube 20.
  • the position of the top end of the pressure communication hole 22 is higher than the position of the inner end of the pressure guiding passage 112, and the bottom of the pressure communication hole 22 The end is closer to the inner end of the pressure guiding passage 112, and the pressure communication hole 22 communicates with the connecting hole 154 of the orifice plate 15, so that the inner end of the pressure guiding passage 112 is extended to a position close to the inner end of the pressure guiding passage 112. .
  • the pressure sensing module 30 is disposed on the top surface of the upper mounting base 111 and located at the outer end of the pressure guiding channel 112.
  • the pressure sensing module 30 closes the outer end of the pressure guiding channel 112, and the pressure sensing module 30 can measure the change in pressure of a fluid, such as air, within the pressure channel 112.
  • Each of the actuators 40 has a circular coil tube 41 disposed in each of the coil grooves 114 so as to be vertically slidable.
  • An induction coil 42 is embedded in each coil tube 41, and an electric coil is coupled to each of the coil tubes 41.
  • the magnetic induction tube 43 surrounds the induction coil 42 of each driver 40 and the electromagnetic induction tube 43 around the induction core rod 17 in each of the induction core grooves 113.
  • the data transmission module 50 has a circular body and is detachably coupled to the upper mounting base 111.
  • the data transmission module 50 surrounds the upper storage tube 11, and the pressure sensing module 30 is combined.
  • the pressure sensing module 30 is electrically connected to the data transmission module 50.
  • the data transmission module 50 includes a wireless transmission unit 51, and the wireless transmission unit 51 senses the pressure.
  • the data measured by the measuring module 30 is wirelessly transmitted outward, and the magnets 16 are coupled to the bottom of the data transmission module 50.
  • the top end of the coil tube 41 of each driver 40 is connected to the bottom of the data transmission module 50.
  • the induction coils 42 are electrically connected to the data transmission module 50, so that the induction coils 42 are driven by the data transmission module 50; when the data transmission module 50 is detached from the upper mount 111, the pressure sensing module 30, each magnet 16 and each driver 40 will leave the original Located at the position of the upper mount 111.
  • the outer cover 60 is a circular cover body and is detachably sleeved on the upper mounting seat 111.
  • An outer cover through hole 61 is bored in the middle of the outer cover 60, and the outer cover through hole 61 is sleeved on the drip tube 18.
  • the data transmission module 50, the pressure sensing module 30, and the magnets 16 are housed in the outer cover 60 and protected by the outer cover 60.
  • FIG. 5 to FIG. 7 an example is applied to a medical infusion system, and when installed, the tip end 181 of the drip tube 18 of the present invention is inserted into an infusion bag.
  • the inside of the infusion bag 90 is filled with the medical liquid, and the tip end 911 of the infusion tube 91 is inserted into the rubber block 19, and an adjusting infusion valve 93 is provided around the infusion tube 91, and the infusion valve 93 and the present invention are adjusted.
  • a drop hopper 94 is connected in series, and a disposable needle 92 is connected to the outer end of the infusion tube 91.
  • the disposable needle 92 can be inserted into the human body to inject the liquid medicine.
  • a data processing center 100 is provided outside the present invention, and the data processing center 100 can receive the wireless signals transmitted by the wireless transmission unit 51 of the data transmission module 50 of the present invention.
  • the calculation process is performed accordingly, and then the result of the calculation process is compared with the value manually input by the operator to the data processing center 100, and then the wireless signal for controlling each driver 40 is sent to the wireless transmission unit 51 according to the result of the determination.
  • the data transfer module 50 selectively controls the operation of each of the drivers 40.
  • the liquid medicine first flows from the infusion bag 90 into the drip tube 18 of the drip tube body 10, and then the drip tube 18
  • the liquid medicine inside is intermittently dropped from the drip nozzle 182 in a drip manner, and is dropped on the bucket portion 21 at the top end of the pressure communication tube 20, so that the chemical liquid gradually fills the lower liquid storage tube 12, the flow regulating groove 14, and the pressure communication.
  • the pressure communication hole 22 of the tube 20 and the connection hole 154 in the perforated plate 15 the liquid level of the liquid medicine in the drop tube body 10 will finally be at the bottom end of the pressure guiding passage 112 and the top end of the pressure communication tube 20 . between.
  • the liquid medicine in the dropper body 10 is outwardly flowed out to the disposable needle 92 by the infusion tube 91 piercing the bottom of the dropper body 10, and then injected into the human body by the disposable needle 92.
  • the chemical liquid dropped on the bucket portion 21 exerts an instantaneous pressure on the liquid in the pressure communication hole 22, and the liquid is incompressible and the pressure transmitting is non-directional.
  • the pressure at this moment is transmitted to the periphery of the bottom end of the pressure guiding passage 112 through the liquid medicine in the connecting hole 154, so that the liquid medicine at the pressure is applied to the air in the pressure guiding passage 112, so that the pressure sensing mold is applied.
  • the group 30 can detect the magnitude of the instantaneous pressure generated by the liquid medicine intermittently dripping from the drip nozzle 182, the amount of the liquid dropped per unit time, and the presence or absence of continuous dripping of the liquid medicine, and the above pressure data is
  • the wireless transmission unit 51 of the data transmission module 50 is wirelessly transmitted to the data processing center 100 for reception.
  • each drop of the liquid dripping from the outlet of the drip nozzle 182 is similar, and the size of each drop of the liquid can be measured in advance by the input data processing center 100, when the data processing center 100 receives the pressure sensing module 30.
  • the pressure data is obtained, the flow rate of the chemical liquid per unit time and the speed of the liquid medicine flow can be calculated, and the flow rate and speed of the liquid medicine are compared with the values input by the operator, for example, medical personnel, into the data processing center 100 in advance.
  • the data processing center 100 sends a wireless signal to the wireless transmission unit 51 of the data transmission module 50 to control the flow of the liquid medicine to adjust the flow rate of the liquid medicine to adjust the flow rate of the medical liquid to the value input by the medical staff in advance into the data processing center 100.
  • the magnitude data of the instantaneous pressure generated by the intermittent drip solution allows the data processing center 100 to exclude data whose pressure is significantly lower than the average value, and eliminates the number of false alarms.
  • the data processing of the presence or absence of the continuous dripping liquid is because the liquid medicine volume in the infusion bag 90 is known. If the data processing center 100 calculates that the volume of the liquid medicine flowing out of the infusion bag 90 conforms to the liquid medicine volume of the infusion bag 90, At this time, the data outputted by the pressure sensing module 30 indicates that there is no dripping liquid.
  • the data processing center 100 can judge that the liquid medicine in the infusion bag 90 has been exhausted, and sends a message to notify the medical staff to replace the infusion bag 90, and at the same time
  • the data processing center 100 sends a wireless signal to the wireless transmission unit 51 of the data transmission module 50 to control the flow of the drug solution from each of the drivers 40.
  • the data processing center 100 calculates that the volume of the liquid medicine flowing out of the infusion bag 90 is smaller than that of the infusion bag 90 .
  • the liquid medicine capacity at which time the data processing center 100 can judge that the pressure in the drip tube 18 is lower than or equal to the pressure outputted from the infusion tube 91, and the blood can be returned to the infusion tube 91 at the disposable needle 92.
  • the data processing center 100 sends a wireless signal to the wireless transmission unit 51 of the data transmission module 50 to control the flow of the drug solution by each of the drivers 40.
  • the wireless transmission unit 51 of the data transmission module 50 receives the wireless signal transmitted by the data processing center 100 and controls each driver 40 to adjust the flow rate of the liquid medicine or stop the flow of the liquid medicine, the liquid medicine according to the required liquid medicine is required.
  • the flow rate and the flow rate are high and low, and the induction coil 42 of each driver 40 is selectively driven by the data transmission module 50, so that the induction coils 42 drive the induction core rods 17 to move downward or return to the original position, so that the induction core rods 17 are
  • the tapered portion 171 closes the corresponding flow adjustment hole 151, or makes the pair The flow rate adjustment hole 151 is in an open state.
  • the above-described structure for adjusting the infusion flow rate of the present invention does not require an electric or pneumatic device having a driving action externally, so that the overall weight of the present invention can be as small as about 40 gram, compared to the existing infusion system requiring an external driving device. Only one-fifth of the weight makes the invention more convenient to use.
  • the area of the three flow regulating holes 151 on the perforated plate 15 is a ratio of 1:2:4, the manner in which each of the induction core rods 17 is selectively closed to each of the flow regulating holes 151 can be combined.
  • the induction core rods 17 completely close the three flow adjustment holes 151.
  • the method of the invention cooperates with the data processing center 100 to calculate the infusion flow rate and the flow rate, to detect whether the infusion bag 90 needs to be replaced, and to detect whether the disposable needle 92 has a blood countercurrent condition, and to monitor the whole process during the infusion. Efficacy, avoiding the manual reporting of the inaccuracy of the infusion rate and accidents.
  • each magnet 16 is coupled to the data transmission module 50 .
  • the top end of the coil tube 41 of each driver 40 is connected to the bottom of the data transmission module 50. Therefore, after the invention is used, the dropper body 10 that has been in contact with the medical liquid is medical waste, and can only be disposable.
  • the used part needs to be discarded and can not be reused after use, but the outer cover 60 and the data transmission module 50 together with the pressure sensing module 30, the magnets 16 and the drivers 40 can be detached from the dropper body 10
  • the seat 111 is reused, so that the single-use dropper body 10 can be repeatedly used to form the present invention for reuse, achieving a cost saving effect.
  • the present invention is provided with the data processing center 100 externally, and the external data processing center 100 accepts the pressure data transmitted by the data transmission module 50, performs calculation processing with pressure data, and controls each driver.
  • the function of the data processing center 100 may be replaced by a single chip 101, and the single chip 101 may be disposed on the data transmission module 50 to make the single chip 101 and the same.
  • the data transmission module 50 is electrically connected, and the data transmission module 50 directly transmits the pressure data measured by the pressure sensing module 30, and controls each driver 40 to drive the respective induction core rods 17 to operate. At this time, the data transmission module 50 may not The wireless transmission unit 51 is provided.
  • the single wafer 101 can also be detached along with the data transfer module 50, and has the same reusable effect.
  • the present invention divides the upper storage tube 11 and the lower storage tube 12 into two parts.
  • the upper sealing tube 13 and the upper mounting seat 111 around it, and the lower storage tube 12 and the lower mounting seat therearound may be directly provided without the sealing ring 13 described above.
  • the 121 is integrated into a structure that becomes a liquid storage tube and a mounting seat provided around the liquid storage tube.
  • the pressure communication tube 20 is fixed to the center of the perforated plate 15 or the pressure communication tube 20 is not fixed to the center of the perforated plate 15, but A hollow bracket is provided between the pressure communication tube 20 and the upper and lower liquid storage tubes 11, 12, and the pressure communication tube 20 is fixed in the middle of the drop tube body 10, at which time the bottom end of the pressure communication tube 20 is bendable and Extending in the direction of the bottom end of the pressure guiding passage 112, the bottom end of the pressure communication hole 22 is closer to the bottom end of the pressure guiding passage 112 than the top end, so that the pressure of the liquid medicine dripping at the top end of the pressure connecting tube 20 can be more smoothly
  • the ground is transmitted to the pressure guiding channel 112 for measurement by the pressure sensing module 30.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

La présente invention concerne un dispositif de mesure de l'écoulement d'un liquide, sa partie supérieure comportant une pipette à gouttes (18) sous la forme d'une ampoule à robinet, un canal de pression (112) en communication avec l'intérieur étant situé à la périphérie d'un corps de pipette à gouttes (10), un module de détection de pression (30) étant situé à une extrémité externe du canal de pression (112), un tube de communication de pression (20) étant situé juste au-dessous de la pipette à gouttes (18) et l'extrémité inférieure du tube de communication de pression (20) se prolongeant jusqu'à une position proche d'une extrémité interne du canal de pression (112). Quand il est utilisé dans une micro-conduite de mesure d'écoulement, le dispositif peut être raccordé en série à une conduite d'écoulement de petite taille; et quand il est utilisé dans un système de perfusion, le dispositif est raccordé en série à une conduite de perfusion de solution médicamenteuse et, lors d'une perfusion, la solution médicamenteuse entre dans le corps de pipette à gouttes (10) et le module de détection de pression (30) détecte le nombre de gouttes de la solution médicamenteuse et transfère ensuite cette information à un ordinateur d'arrière-plan d'hôpital ou une puce intégrée unique (101) afin de calculer la vitesse d'écoulement et le débit de la perfusion et de déterminer si la perfusion s'arrête ou subit un refoulement, ce qui permet de surveiller automatiquement le processus de perfusion afin d'éviter la survenue d'un accident.
PCT/CN2016/073501 2016-02-04 2016-02-04 Dispositif de mesure de l'écoulement d'un liquide Ceased WO2017132942A1 (fr)

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PCT/CN2016/073501 WO2017132942A1 (fr) 2016-02-04 2016-02-04 Dispositif de mesure de l'écoulement d'un liquide
CN201680077994.4A CN108603780B (zh) 2016-02-04 2016-02-04 液体流量测量装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019133716A1 (fr) * 2017-12-28 2019-07-04 Onicon Incorporated Ensemble capteur monolithique évolutif, dispositif de commande et procédés de fabrication et d'installation associés
CN115077643A (zh) * 2022-07-26 2022-09-20 中国测试技术研究院流量研究所 微流量液体的流量检测装置及检测方法

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 (zh) * 1999-01-14 2002-03-13 S.F.M.精细流量计有限公司 用于低流速的液滴计数器
CN102671255A (zh) * 2012-05-24 2012-09-19 李益民 一种新型输液泵技术
US20140171868A1 (en) * 2012-12-13 2014-06-19 Zyno Medical, LLC. Multifunction Capacitive Sensor for Medical Pump
CN204208121U (zh) * 2014-11-06 2015-03-18 北华大学 带有数字显示的输液系统
CN104721917A (zh) * 2015-03-23 2015-06-24 李宏 一种输液滴数测量系统

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 (zh) * 1999-01-14 2002-03-13 S.F.M.精细流量计有限公司 用于低流速的液滴计数器
CN102671255A (zh) * 2012-05-24 2012-09-19 李益民 一种新型输液泵技术
US20140171868A1 (en) * 2012-12-13 2014-06-19 Zyno Medical, LLC. Multifunction Capacitive Sensor for Medical Pump
CN204208121U (zh) * 2014-11-06 2015-03-18 北华大学 带有数字显示的输液系统
CN104721917A (zh) * 2015-03-23 2015-06-24 李宏 一种输液滴数测量系统

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019133716A1 (fr) * 2017-12-28 2019-07-04 Onicon Incorporated Ensemble capteur monolithique évolutif, dispositif de commande et procédés de fabrication et d'installation associés
US10724880B2 (en) 2017-12-28 2020-07-28 Onicon Incorporated Scalable monolithic sensor assembly, controller, and methods of making and installing same
US11467013B2 (en) 2017-12-28 2022-10-11 Onicon Incorporated Methods of inserting a sensor assembly into a flow pipe utilizing a preload nut
US12510389B2 (en) 2017-12-28 2025-12-30 Onicon Incorporated Scalable monolithic sensor assembly, controller, and methods of making and installing same
CN115077643A (zh) * 2022-07-26 2022-09-20 中国测试技术研究院流量研究所 微流量液体的流量检测装置及检测方法

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CN108603780A (zh) 2018-09-28

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