TWI600444B - A device of liquid flow measurement - Google Patents

Description

Liquid flow measuring device

The invention relates to a device applied to 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 and detects the number of droplets. The device, the internal or external device that cooperates with this, can calculate the flow rate and flow rate accordingly.

For small flow measurement, it has always been an extremely difficult task, especially for flow measurement with flow rate of less than 1, 2 liters per hour or a few liters (such as 0.1-1.0 L/h). Conventional flow measurement methods such as turbines and vortex flowmeters have large starting flow rates, and it is impossible to measure small flows. Or it is difficult to achieve such a small flow rate range by using a float flowmeter that may be applicable. For more precise processing.

For the convenience of description, we only use the existing medical infusion method to explain the existing technology, and other prior art techniques for small flow measurement such as feeding metering control are similar to the existing medical infusion method, and therefore will not be described. Referring to FIG. 9, 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. When used, 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.

In the process of injecting the drug solution, 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. However, 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. However, if 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 notify the medical staff when the infusion speed is abnormal, and it cannot be timely infusion. When the liquid in the bag 80 is used up, the new infusion bag 80 is replaced. In addition, since 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.

To solve the above-mentioned uncertainty of human operation, there are technical solutions that the creators try to solve, using the counting method of weighing the infusion bag or installing the number of photoelectric detection spots next to the dripper to measure the speed of the infusion to a certain extent. And the amount of infusion.

However, 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 the patent application of TW Patent Application No. 85213357 "Drip Monitor", is to install a photodetector beside the dripper, the disadvantage of which is the size and size of the dripper produced by each manufacturer. Different, different sizes, this technology can only be applied to the products that are produced by ourselves. 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 to carry out the flow. Computation, due to the large number of manufacturers producing drip buckets, this is a task that is very labor intensive and the hospital is not convenient to cooperate; in addition, the technology of detecting the number of drops of photoelectricity is also susceptible to interference by various light sources. The problem.

Due to the difficulty of small flow measurement, 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 pipe, or can be connected to the existing infusion tube to carry out droplet counting, in order to calculate the flow rate and flow rate of the infusion, and to determine whether the infusion is stopped or reversed, and to automatically detect the liquid. The effectiveness of the flow situation.

In order to achieve the above object, the present invention provides a liquid flow measuring device comprising: a dropper body provided with a liquid storage tube, and a liquid drop tube is disposed at the top of the liquid storage tube, the width of the liquid drop tube being narrower than the liquid storage tube The width of the tube forms a drop nozzle at the bottom of the drip tube; and a pickup is disposed around the drip tube, and the pickup can detect the sound emitted in the drip tube.

Further, the present invention forms a mounting around the liquid storage tube, and a data transmission module is disposed on the mounting base, and the data transmission module is electrically connected to the pickup to transmit the sound data detected by the pickup.

Preferably, the data transmission module of the present invention comprises a wireless transmission unit, and the wireless transmission unit transmits the sound data detected by the pickup in a wireless manner.

Preferably, 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, receives sound data transmitted by the data transmission module, and perceives the drop according to the present invention. Whether the 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.

Further, 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, and the mounting seat is divided into an upper mounting seat and a lower mounting seat which are combined with the upper and lower sides, and 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. Adjusting the hole, when setting three or four flow adjustment holes, the area ratio is 1:2:4 or 1:2:4:8; respectively, an inductor is placed at the position of each of the flow adjustment holes a slot, each of the induction core slots is a vertical hole and the inner end is in communication with the flow adjustment groove, and the outer ends of the induction core slots are closed ends, and a magnet is respectively disposed at a position corresponding to the outer ends of the induction core slots of the mount. An electromagnetic induction tube and an induction coil surrounding the electromagnetic induction tube are disposed around each of the induction core slots, and an electromagnetic induction tube is used to strengthen the intensity of the induced magnetic field generated by the induction coil, and each induction coil is electrically connected to the data transmission module. An induction mandrel which can be attracted and positioned by each magnet is disposed in each of the induction core grooves, and an inner end of each induction mandrel 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. In this way, when three flow adjustment holes are set, 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.

Further, the data transmission module of the present invention is detachably coupled to the upper mount and located beside the upper storage tube, and the pickup is coupled to the data transfer module adjacent to the upper storage liquid. The inner side of the 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, and each coil slot Concentric with each of the sensing core slots, a circular coil tube is disposed in each of the coil slots, and the induction coils are embedded in the coil tubes, and the electromagnetic induction tubes are coupled to the inner surfaces of the coil tubes. The top end of each coil tube is connected to the bottom of the data transmission module, and the magnet is coupled to the bottom of the data transmission module.

When the invention is used, it can be used for metering in the fields of biochemistry, chemical engineering or mining. The following is an example of the use of the present invention in a medical infusion system. How to use it. 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. Adjusting the infusion valve of the flow rate, and connecting a dropper between the regulating infusion valve and the invention, and connecting a disposable needle to the outer end of the infusion tube, and flowing out of the infusion bag when the disposable needle penetrates into the human body The drug solution can be injected into the human body through the present invention, a drip bucket, an infusion tube, and a disposable needle.

When the infusion system of the present invention is used, 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 dripped from the drip nozzle. Dropped in the storage tube, the liquid level of the final liquid will be in the middle of the storage tube.

When the liquid drops from the drip nozzle of the drip tube to the liquid in the liquid storage tube, a sound is emitted, so that the sound pickup can detect the number of drips per unit time from the dripping sound, and also sense whether there is The drip of the liquid medicine falls into the liquid storage tube, and then the sound information measured by the foregoing pickup device is wirelessly or wiredly transmitted to a device or component such as a data processing center or a single wafer for calculation processing.

Since the size of the liquid droplets in the liquid storage tube by the drip nozzle is similar, and the size of each liquid medicine can be measured in advance by the same size drip tube, when the data processing center or the single chip receives the sound detector When the measured sound message is used, 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 be judged by the message that there is no medicine drop, the amount of the liquid medicine in the infusion bag and whether it needs to be replaced, or the pressure of the drip tube is lower than the pressure in the liquid storage tube, which may cause one time. The problem of blood reflux occurs at the sex needle.

The invention relates to a device which is shaped like a drip bucket, converts continuous flow into a trickle flow, and counts by drop. The pickup is matched with the design of the dropper body to detect the number of drops falling in the dropper body, and provides a data processing center or single Microcomputers such as wafers automatically calculate the infusion rate, infusion volume, whether the infusion bag needs to be replaced, and whether blood reverse flow may occur, which can replace the manual record. Force and avoid errors that may occur during manual recording, and can immediately monitor the progress of the infusion process, automatically monitor the infusion process, and avoid medical negligence or human accidents.

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.

10‧‧‧Dripper body

11‧‧‧Upper storage tube

111‧‧‧上上座

112‧‧‧Induction core slot

113‧‧‧ coil slot

12‧‧‧ under the storage tube

121‧‧‧下下座

13‧‧‧Seal ring

14‧‧‧Flow adjustment slot

15‧‧‧With orifice plate

151‧‧‧Flow adjustment hole

16‧‧‧ magnet

17‧‧‧Induction mandrel

171‧‧‧spirt

18‧‧‧Drip tube

181‧‧‧ cutting-edge

182‧‧‧ dripping mouth

19‧‧‧ Rubber block

20‧‧‧ drive

21‧‧‧ coil tube

22‧‧‧Induction coil

23‧‧‧Electromagnetic induction tube

30‧‧‧ pickups

40‧‧‧Data Transmission Module

41‧‧‧Wireless transmission unit

411‧‧‧Transmission antenna

50‧‧‧ Cover

51‧‧‧Perforated cover

80‧‧‧Infusion bag

81‧‧‧Infusion tube

82‧‧‧Disposable needles

83‧‧‧Dripper

84‧‧‧Infusion control valve

90‧‧‧Infusion bag

91‧‧‧Infusion tube

911‧‧‧ cutting edge

92‧‧‧Disposable needles

93‧‧‧Adjusting infusion valve

94‧‧‧Dripper

100‧‧‧Data Processing Center

101‧‧‧ single chip

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic cross-sectional view of a preferred embodiment of the present invention.

Figure 2 is a schematic cross-sectional view showing a reusable portion of a preferred embodiment of the present invention.

Figure 3 is a top plan view of a perforated plate in accordance with a preferred embodiment of the present invention.

4 is a schematic view of an embodiment of a preferred embodiment of the present invention installed in an infusion system.

Fig. 5 is a schematic view showing the data of the drip pressure of the drug solution installed in the infusion system according to the preferred embodiment of the present invention.

Fig. 6 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.

Fig. 7 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 8 is a cross-sectional view showing the addition of a single wafer in accordance with a preferred embodiment of the present invention.

Fig. 9 is a schematic view showing the appearance of a conventional infusion system.

In order to understand the technical features and practical effects of the present invention in detail, it can be implemented in accordance with the contents of the specification, and further described in detail with reference to the preferred embodiments shown in the drawings.

Referring to the preferred embodiment shown in FIGS. 1 to 3, the present invention is intended to design a device such as a drip bucket, which converts a continuous flow into a trickle, and counts by drop, the configuration of which includes a shape such as a drip bucket. The dropper body 10, and three drivers 20, a pickup 30, a data transmission module 40, and an outer cover 50 respectively disposed on the dropper body 10, wherein the dropper body 10 is provided with a constant tubular storage The liquid pipe 11 and the lower tubular liquid storage pipe 12 are arranged in such a manner that the upper liquid storage pipe 11 and the lower liquid storage pipe 12 are connected in a straight line above and below, and a bottom portion of the upper surface of the upper liquid storage pipe 11 is convex outward. The upper mounting seat 111 has a mounting seat 121 protruding outwardly from the top of the lower surface of the lower liquid storage tube 12. The upper mounting seat 111 and the lower mounting seat 121 are respectively disc bodies and are combined with the upper and lower sides, and the bonding means can be bonded. Fasten, lock 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; an orifice plate 15 is embedded in the middle of the flow regulating groove 14 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 peripheral edge of the perforated plate 15 is sandwiched between the upper mounting seat 111 and the lower mounting seat 121. Fixed between the two, the orifice plate 15 divides the flow adjustment groove 14 into upper and lower portions, and three flow adjustment holes 151 are vertically disposed around the perforated plate 15 in a circumferential and equally spaced arrangement, three flow rates. The adjustment hole 151 is a circular hole and the ratio of the area is a ratio of 1:2:4.

An inductive core slot 112 is respectively disposed at a position above the flow adjusting hole 151 of the upper mounting seat 111. Each of the sensing core slots 112 is a vertical hole and the inner end communicates with the flow regulating groove 14 . The outer end of the sensing core slot 112 is a closed end. A magnet 16 is disposed at a position corresponding to the outer end of each of the sensing core slots 112 at a top surface of the upper mounting base 111. A magnet 16 is disposed in each of the sensing core slots 112. Inductive mandrel 17, the inner end of each of the inductive mandrels 17 forms a tapered portion 171, and a circular coil groove 113 is recessed downwardly on the top surface of the upper mounting seat 111 corresponding to the periphery of each of the sensing core slots 112. Each of the coil grooves 113 is concentric with each of the induction core grooves 112.

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.

Each of the actuators 20 has a circular coil tube 21 disposed in each of the coil grooves 113 so as to be vertically slidable. An induction coil 22 is embedded in each coil tube 21, and an electromagnetic unit is coupled to each of the coil tubes 21. The induction tube 23 surrounds the induction coil 22 of each driver 20 and the electromagnetic induction tube 23 around the induction core rod 17 in each of the induction core grooves 112.

The pickup 30 is a high-sensitivity microphone and is disposed around the upper liquid storage tube 11. The pickup 30 is preferably disposed to abut against the circumferential surface of the upper liquid storage tube 11, so that the pickup 30 can be easily detected. The sound that is emitted into the upper storage tube 11.

The data transmission module 40 has a circular shape and is detachably coupled to the upper mounting base 111. The data transmission module 40 surrounds the upper storage tube 11, and the data transmission module 40 includes a wireless transmission unit 41, the pickup 30 is coupled to the inner side of the data transfer module 40 adjacent to the upper storage tube 11, and the pickup 30 is electrically connected to the data transmission module 40, so that the data transmission module 40 can be wirelessly The transmission unit 51 wirelessly transmits the sound data detected by the pickup 30, and the magnets 16 are coupled to the bottom of the data transmission module 40, and the top end of the coil tube 21 of each driver 20 is connected to the data transmission mode. At the bottom of the group 40, each induction coil 22 is electrically connected to the data transmission module 40. The induction coils 22 are driven by the data transmission module 40; when the data transmission module 40 is detached from the upper mount 111, the pickups 30, the magnets 16, and the drivers 20 are separated from each other and positioned at the upper mount 111. s position.

The outer cover 50 is a circular cover body and is detachably sleeved on the upper mounting seat 111. An outer cover through hole 51 is bored in the middle of the outer cover 50, and the outer cover through hole 51 is sleeved on the drip tube 18. Around the data transmission module 40, the pickup 30, and the magnets 16 are housed in the outer cover 50 and protected by the outer cover 50.

The foregoing outer cover 50 can be designed to have a function of shielding interference, such as sound insulation, shading, electromagnetic interference prevention, and the like, such as a metal shell lining sound absorbing material, and forming a cover of various sensors for the liquid in the pipeline. The flow is measured. When the outer cover 50 is provided with a metal shell lining sound absorbing material, in order to prevent the wireless signal sent by the wireless transmission unit 41 from being shielded by the outer cover 50, a transmitting antenna 411, the transmitting antenna 411 and the wireless transmission unit 41 may be disposed on the outer cover 50. The electrical connection moves the antenna originally disposed in the outer casing 50 to the outside of the outer casing 50, ensuring that the wireless signal transmitted from the wireless transmission unit 41 is stable.

Compared with other competing solutions, for example, the pickup sensor that senses the droplet number of the present invention is replaced by a photoelectric and intelligent heat sensitive detector, although it can also sense the falling droplets, but the effect of such a technical solution Since the sensor must directly measure the liquid in the drip chamber, the outer cover 50 of the metal shell-lined sound absorbing material cannot be used as the cover mask as in the present invention to prevent interference, and therefore, the measurement effect thereof is far worse than the present invention. In the present invention, such sensors are directly mounted beside the drip tube 18 shaped like a dripper, and the mask of the outer cover 50 can be used for reliability, anti-interference ability, measurement effect, etc. Enhanced.

When the preferred embodiment of the present invention is used, as shown in FIG. 4 to FIG. 6, it is exemplified in the medical infusion system. When installed, the tip end 181 of the drip tube 18 of the present invention is inserted into the infusion bag. At the bottom of the 90, 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. String between A drop hopper 94 is connected to the outer end of the infusion tube 91 to connect a disposable needle 92, and the disposable needle 92 can be inserted into the human body to inject the liquid medicine.

In conjunction with the data transmission module 40 and the drivers 20 of the present invention, 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 41 of the data transmission module 40 of the present invention. According to the calculation process, 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 20 is sent to the wireless transmission unit 41 according to the result of the determination. The data transfer module 40 selectively controls the operation of each of the drivers 20. The process of the foregoing data processing center 100 in conjunction with the operation of the present invention is described in detail below.

Referring to FIG. 4 and FIG. 5, when the tip end 181 of the drip tube 18 is inserted into the infusion bag 90, 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 in the solution is intermittently dropped from the drip nozzle 182 in a drip manner, and is dropped into the upper liquid storage tube 11 and the lower liquid storage tube 12, so that the chemical liquid gradually fills the lower liquid storage tube 12 and the flow rate adjusting tank 14, in The liquid level of the liquid medicine in the dropper body 10 is finally located in the middle of the upper liquid storage tube 11. Then, 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.

During the intermittent dripping of the liquid medicine by the dropping nozzle 182, a sound is generated when the liquid medicine drops dripping on the liquid surface of the lower liquid medicine, so that the pickup 30 can detect the amount of the liquid medicine dropped per unit time and the perception. Whether or not the liquid medicine is continuously dripped, and the above-described sound data is wirelessly transmitted from the wireless transmission unit 41 of the data transmission module 40 to the data processing center 100 for reception.

Since the size of each drop of the liquid dripping from the outlet of the drip nozzle 182 is similar, and the size of each drop can be measured in advance by the input data processing center 100, when the data processing center 100 receives the sound data detected by the pickup 30 According to this, 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 of the operator, for example, the medical staff, which are input into the data processing center 100 in advance, and then the data processing center 100 Controlling the wireless transmission unit 41 of the data transmission module 40 Each of the drivers 20 adjusts the wireless signal of the flow rate of the chemical solution to adjust the flow rate of the chemical solution to a value previously input by the medical staff to the data processing center 100.

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, and 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 capacity of the infusion bag 90, and The data outputted by the time pickup 30 indicates that there is no dripping liquid. At this time, 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 the data processing center 100 transmits the data to the data. The wireless transmission unit 41 of the module 40 issues a wireless signal that controls each driver 20 to prohibit the flow of the medical solution.

As shown in FIG. 4 and FIG. 6, if the data output from the pickup 30 indicates that the drip nozzle 182 has no dripping liquid, and the data processing center 100 calculates that the volume of the liquid medicine flowing out of the infusion bag 90 is smaller than the liquid medicine capacity of the infusion bag 90, At this 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. At this time, the data processing center 100 The wireless transmission unit 41 of the data transmission module 40 issues a wireless signal for controlling the flow of the drug solution by each of the drivers 20.

Referring to FIG. 7, when the wireless transmission unit 41 of the data transmission module 40 receives the wireless signal transmitted by the data processing center 100 and controls each driver 20 to adjust the flow rate of the liquid medicine or stop the flow of the medicine solution, 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 22 of each driver 20 is selectively driven by the data transmission module 40, so that each induction coil 22 drives each induction core rod 17 to move downward or return to the original position, so that each induction core rod 17 has its The tapered portion 171 closes the corresponding flow adjustment hole 151 or opens the corresponding flow adjustment hole 151. 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.

As shown in FIG. 3, since 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. There are eight kinds of flow area changes such as zero and one to seven. When a higher liquid flow rate and flow rate are required, all three flow adjustment holes 151 are opened. When it is necessary to prohibit the flow of the liquid, three inductions are used. The core rod 17 closes all of the three flow adjustment holes 151. By adopting the above-mentioned manner with the data processing center 100, the invention can calculate the infusion flow rate and the flow rate, detect whether the infusion bag 90 needs to be replaced, and detect whether the disposable needle 92 has a blood reverse flow condition, and perform full-time monitoring during the infusion. The effect is to avoid manual reporting of the inaccuracy of the infusion rate and accidents.

As shown in FIG. 1 and FIG. 2, since the outer cover 50 of the present invention is detachable, and the pickup 30 is coupled to the inner side of the data transmission module 40, the magnets 16 are coupled to the bottom of the data transmission module 40, respectively. The top end of the coil tube 21 of the driver 20 is connected to the bottom of the data transmission module 40. Therefore, when the invention is used, the dropper body 10 that has been in contact with the medical liquid is medical waste, and is a disposable part only. After use, it needs to be discarded and cannot be reused, but the outer cover 50 and the data transmission module 40 are repeatedly used together with the pickup 30, each magnet 16 and the upper mount 111 of each driver 20 detachable from the dropper body 10, so that it can be repeated The present invention is reused in conjunction with the disposable dropper body 10 to achieve a cost saving effect.

In addition to the foregoing preferred embodiment, the present invention is provided with the data processing center 100 externally, and the external data processing center 100 accepts the sound data transmitted by the data transmission module 40, performs calculation processing with the sound data, and controls each driver. In addition to the 20 operations, please refer to FIG. 8. Alternatively, 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 40 to make the single chip 101 and the The data transmission module 40 is electrically connected, and the data transmission module 40 directly transmits the sound data detected by the pickup unit 30, and controls each driver 20 to drive each of the induction core rods 17. The data transmission module 40 may not be provided. Wireless transmission unit 41. When the data transmission module 40 When the upper mount 111 of the dropper body 10 is detached, the single wafer 101 can also be detached along with the data transfer module 40, and has the same reusable effect.

In addition to the foregoing preferred embodiment, the present invention is characterized in that the upper liquid storage tube 11 and the lower liquid storage tube 12 are divided into two parts to form the dropper body 10, or the sealing ring 13 may not be provided, and the upper part is directly The liquid storage tube 11 and the upper mounting seat 111 around it, and the lower liquid storage tube 12 and the lower mounting seat 121 around it are integrally coupled to each other to form a liquid storage tube and a mounting seat provided around the liquid storage tube.

10‧‧‧Dripper body

11‧‧‧Upper storage tube

111‧‧‧上上座

12‧‧‧ under the storage tube

121‧‧‧下下座

14‧‧‧Flow adjustment slot

15‧‧‧With orifice plate

151‧‧‧Flow adjustment hole

16‧‧‧ magnet

17‧‧‧Induction mandrel

171‧‧‧spirt

18‧‧‧Drip tube

181‧‧‧ cutting-edge

182‧‧‧ dripping mouth

19‧‧‧ Rubber block

21‧‧‧ coil tube

22‧‧‧Induction coil

23‧‧‧Electromagnetic induction tube

30‧‧‧ pickups

40‧‧‧Data Transmission Module

41‧‧‧Wireless transmission unit

411‧‧‧Transmission antenna

50‧‧‧ Cover

51‧‧‧Perforated cover

Claims (8)

A liquid flow measuring device comprises: a dropper body provided with a liquid storage tube, a mounting seat is formed around the liquid storage tube, and a liquid drop tube is disposed at the top of the liquid storage tube, the width of the liquid drop tube is narrow Forming a drop nozzle at the bottom of the drip tube, and providing a data transmission module, the data transmission module is a ring body and surrounding the liquid storage tube, and the data transmission module is a detachable manner is coupled to the mount; and a pickup coupled to the inner side of the data transfer module adjacent to the liquid storage tube, thereby being disposed around the liquid storage tube, the pickup being abutted thereon The sound of the liquid in the storage tube can be detected by the circumferential surface of the liquid storage tube, and the data transmission module is electrically connected to the pickup to transmit the sound data detected by the pickup. The liquid flow measuring device according to claim 1, wherein the data transmission module comprises a wireless transmission unit, and the wireless transmission unit transmits the sound data detected by the pickup to the wirelessly. The liquid flow measuring device according to claim 1, wherein a single chip is disposed on the data transmission module, and the single chip is electrically connected to the data transmission module, and receives sound data transmitted by the data transmission module, and This senses 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 flow measuring device according to claim 1 or 2, wherein the liquid storage tube is divided into an upper liquid storage tube and a lower liquid storage tube which are connected in a straight line, and the mounting seat is divided into an upper and a lower combined one. a mounting seat and a lower mounting seat, and the upper and lower mounting seats are 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 joint between the upper mounting seat and the lower mounting seat The middle of the flow adjustment tank communicates with the upper and lower liquid storage tubes, and a perforated plate is embedded in the middle of the flow adjustment groove, and the perforated plate divides the flow adjustment groove into upper and lower parts, and is in the perforated plate. a plurality of flow adjustment holes are arranged around the circumference; 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 disposed at a position corresponding to an outer end of each of the sensing core slots, and an electromagnetic induction tube and an induction coil surrounding the electromagnetic induction tube are disposed around each of the sensing core slots, and each of the induction coil and the data transmission module The electrical connection is provided with an induction mandrel which can be attracted and positioned by each magnet in each of the induction core slots, and an inner end of each induction mandrel forms a tapered portion. The liquid flow measuring device according to claim 4, wherein the data transmission module is detachably coupled to the upper mounting seat and located beside the upper liquid storage tube; the sensing core slots are formed In the upper mounting seat, corresponding to the periphery of each of the sensing core slots, a circular coil groove is recessed downwardly on the top surface of the upper mounting seat, and each coil slot is concentric with each of the sensing core slots in each coil slot. Inserting a circular coil tube, the induction coils are embedded in the coil tubes, and the electromagnetic induction tubes are coupled to the inner surface of each coil tube, and the top ends of the coil tubes are connected to the data transmission module. At the bottom, the magnet is coupled to the bottom of the data transmission module. The liquid flow measuring device according to claim 3, wherein the liquid storage tube is divided into an upper liquid storage tube and a lower liquid storage tube which are connected in a straight line, and the mounting seat is divided into an upper mounting portion which is combined with upper and lower sides. And a lower mounting seat, wherein the upper and lower mounting seats are 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 joint between the upper mounting seat and the lower mounting seat, The middle of the flow adjustment tank communicates with the upper and lower liquid storage tubes, and a perforated plate is embedded in the middle of the flow adjustment groove, and the perforated plate divides the flow adjustment groove into upper and lower parts, around the perforated plate a plurality of flow adjustment holes are disposed; an induction core groove is respectively disposed at a position of each of the flow adjustment holes, wherein each of the induction core grooves is a vertical hole and the inner end is communicated with the flow adjustment groove, and each of the induction cores The outer end of the slot is a closed end, and a magnet is respectively disposed at a position corresponding to the 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 each induction Coil Data transfer The transmission module is electrically connected, and an induction core rod which 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 liquid flow measuring device according to claim 6, wherein the data transmission module is detachably coupled to the upper mounting seat and located beside the upper liquid storage tube; the sensing core slots are formed In the upper mounting seat, corresponding to the periphery of each of the sensing core slots, a circular coil groove is recessed downwardly on the top surface of the upper mounting seat, and each coil slot is concentric with each of the sensing core slots in each coil slot. Inserting a circular coil tube, the induction coils are embedded in the coil tubes, and the electromagnetic induction tubes are coupled to the inner surface of each coil tube, and the top ends of the coil tubes are connected to the data transmission module. At the bottom, the magnet is coupled to the bottom of the data transmission module. The liquid flow measuring device according to claim 2, wherein an outer cover is covered on the mounting seat, the outer cover is a metal shell lining sound absorbing material, and a cover perforation is bored in the middle of the outer cover to The outer cover is sleeved around the drip tube, and the inside of the outer cover accommodates the data transmission module, the pickup, and the wireless transmission unit, and a transmitting antenna is disposed on the outer cover, and the sending The antenna is electrically connected to the data transmission module.