TWI576126B - A device of liquid flow measurement - Google Patents

A device of liquid flow measurement Download PDF

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TWI576126B
TWI576126B TW105103487A TW105103487A TWI576126B TW I576126 B TWI576126 B TW I576126B TW 105103487 A TW105103487 A TW 105103487A TW 105103487 A TW105103487 A TW 105103487A TW I576126 B TWI576126 B TW I576126B
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tube
pressure
mounting seat
induction
liquid storage
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TW105103487A
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TW201728345A (en
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徐孟飈
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金宙科技有限公司
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Description

液體流量測量裝置Liquid flow measuring device

本發明涉及一種應用於生化反應、化工反應、釀造、洗礦中加料計量和控制,以及醫療輸液的裝置,尤其涉及一種形如滴斗的,將連續流量變為滴液,偵測液滴數量的裝置,與此配合的內部或外部的裝置可依此計算出流量速度、流量。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.

對於小流量測量,一直是個極為困難的課題,特別是對於每小時流速僅僅1、2公升以下或者零點幾公升(比如0.1-1.0 L/h)的流量測量,更為困難。傳統的流量測量方式如渦輪、渦街流量計,始動流量都較大,都無法實現小流量的測量;或者運用可能適用的浮子流量計,也難以達到如此小的流速範圍,因此不得不對流量計進行更為精密的加工。For small flow measurement, it has always been an extremely difficult task, especially for flow measurement with flow rate of only 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.

為便於說明,我們僅以現有醫療的輸液方式加以說明現有的技術,其他用於加料計量控制等小流量量測的現有技術,與現有的醫療的輸液方式相類似,故不贅述。請參看圖10,是將內部裝滿藥液的輸液袋80懸掛在支架上,以輸液袋80底部連接的輸液管81結合可注射人體的一次性針頭82,在輸液管81的中間串接一滴斗83,該滴斗83的作用是提供醫護人員觀察滴液的速度,防止意外的發生。當使用時,是將一次性針頭82插在人體的手臂、手背或是大腿內側等處的靜脈,達到對人體持續注射藥液的效果。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. 10, 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.

前述注射藥液的過程中,控制輸液速度的方式是在輸液管81的周圍設有調節輸液閥84,利用調節輸液閥84改變輸液管81可流通面積的大小來控制輸液的速度與流量。但這種用於控制輸液速度的調節輸液閥84,特別是電動或者氣動的調節輸液閥84,在使用時需要能源驅動,功耗比較大、重量比較重,因此使用不是那麼方便。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.

前述調整輸液管81流量的方式雖可調整藥液注入人體的速度,但醫療人員若要知道藥液流動的速度是否適當,或輸液袋80內的藥液是否用盡時,都只能以人工的方式從旁觀察、記錄,並將記錄的結果進行計算後才能得知,此種人工觀察、記錄的方式除了在輸液速度異常時不能自動地發出警報通知醫護人員以外,也無法適時地在輸液袋80內的藥液用盡時更換新的輸液袋80。此外,由於人為操作因素具有高度的不確定性,因此這種人工觀察記錄的方式也容易造成例如輸液袋80更換不及等醫療上的疏失與血液逆流等意外的發生。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.

為解決上述人為操作的不確定性,有創作人嘗試提出解決的技術方案,利用對輸液袋秤重,或在滴斗旁安裝光電偵測點滴數量的計數手段,在一定程度上測量出輸液的速度以及輸液量。In order 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 infusion to some extent. Speed and infusion volume.

然而前述的秤重方法的缺點是輸液管的管線容易受到拉扯,影響測量的精度。在滴斗旁安裝光電偵測的手段,如TW專利申請第85213537號「點滴監視器」的專利案,是在滴斗旁安裝光電偵測器,其缺點是各廠家生產的滴斗規格、尺寸不同、點滴的大小各異,這種技術只能適用在自己生產的產品,要不是針對各廠家規格的滴斗生產不同規格的產品,就是要針對不同廠家的產品標定點滴的大小以進行流量的計算,由於生產滴斗的廠家眾多,這是項工作量很大,且醫院也不便進行配合的任務;除此以外,這種光電偵測滴液數目的技術,也還存在容易受各種光源干擾的問題。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.

由於小流量測量的困難,本發明意在設計一種形如滴斗、將連續流變為點滴流,進行逐滴計數的裝置,實現小流量的測量。它可以接入任何小流量管道上,也可以接入現有輸液器管路中,進行液滴計數,以此計算輸液的流速、流量以及判斷輸液是否停止或逆流的效果,發揮自動偵測藥液流動狀況的功效。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.

為達到上述目的,本發明提供一種液體流量測量裝置,包括:In order to achieve the above object, the present invention provides a liquid flow measuring device comprising:

一滴管本體,設有一存液管,在該存液管的周圍形成一安裝座,在該安裝座穿設一引壓通道,該引壓通道的內端與該存液管的內部相通,在該存液管的頂部穿設一滴液管,該滴液管的寬度窄於該存液管的寬度,在該滴液管的底部形成一漏斗狀的滴嘴;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;

一壓力連通管,固定在該存液管內的中間,該壓力連通管的頂端位於該滴嘴的正下方,在該壓力連通管內形成一壓力連通孔,該壓力連通孔的底端較頂端接近該引壓通道的內端;以及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, and the bottom end of the pressure communication hole is higher than the top end Near the inner end of the pressure channel;

一壓力感測模組,設於該引壓通道的外端,該壓力感測模組封閉該引壓通道的外端,且該壓力感測模組可量測該引壓通道內流體的壓力變化。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.

進一步,本發明在所述安裝座設有一數據傳輸模組,該數據傳輸模組與該壓力感測模組電連接,從而傳輸該壓力感測模組量測到的點滴壓力數據。Further, 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.

較佳的,本發明所述數據傳輸模組包括一無線傳輸單元,以該無線傳輸單元將所述壓力感測模組量測到的點滴壓力數據以無線的方式向外傳輸。Preferably, 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.

較佳的,本發明在所述數據傳輸模組上設有一單晶片,該單晶片與該數據傳輸模組電連接,接受該數據傳輸模組傳輸的點滴壓力數據,並依此感知出所述滴液管是否有點滴落下、測量出落下的點滴數量、計算出單位時間通過所述滴液管的藥液流量與流速。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, 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.

進一步,本發明所述的存液管分為直線相連的一上存液管以及一下存液管,所述安裝座分為上、下相結合的一上安裝座以及一下安裝座,且上、下安裝座分別形成在上存液管底部的周圍以及該下存液管頂部的周圍,在上安裝座與下安裝座對接處的中間開設一流量調整槽,該流量調整槽的中間與上、下存液管相通,在該流量調整槽的中間嵌設一帶孔板,該帶孔板將該流量調整槽分隔為上、下兩部分,在帶孔板穿設兩個或兩個以上的流量調整孔,當設置三或四個流量調整孔時,其面積比為1:2:4或1:2:4:8;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. Adjust the hole, when setting three or four flow adjustment holes, the area ratio is 1:2:4 or 1:2:4:8;

在該安裝座對正各流量調整孔的位置分別穿設一感應芯槽,各感應芯槽是豎直的孔洞並且內端與該流量調整槽相通,各感應芯槽的外端是封閉端,在該安裝座對應各感應芯槽外端的位置分別設有一磁鐵,在各感應芯槽的周圍設置一電磁感應管以及一環繞該電磁感應管的感應線圈,利用電磁感應管可加強感應線圈產生的感應磁場的強度,各感應線圈與所述數據傳輸模組電連接,在各感應芯槽內設置一可受各磁鐵吸引定位的感應芯棒,各感應芯棒的內端形成一尖錐部。前述本發明進一步設有的構造,當感應芯棒落下時,可將對應的流量調節孔堵上,使通過該流量調節孔的流量為零;當感應芯棒抬高時,對應的流量調節孔全通;這樣當設置三個流量調整孔時,利用面積比為1:2:4的3個流量調節孔的開合情況組合,可以出現八種流量;如果當設置四個流量調整孔時,是利用1:2:4:8的4個流量調節孔的開合情況組合,則可以實現十六種流量。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. Inductive magnetic field strength, 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. 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.

進一步,本發明所述引壓通道是以沿上下方向延伸的形態穿設在所述的上安裝座,該引壓通道的內端與所述流量調整槽相通,在所述帶孔板頂面的中間凹設一插槽,在該帶孔板頂面位於該引壓通道下方的位置凹設一出口槽,在該帶孔板的內部穿設一連通該插槽以及該出口槽的連接孔,所述的壓力連通管以其底端插設在該插槽固定,所述的壓力連通孔與該連接孔相通。Further, 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 inner end of the pressure guiding passage communicates with the flow regulating groove, and the top surface of the orifice plate a slot is defined in the middle of the recessed plate, and an outlet slot is recessed at a position of the top surface of the orifice plate below the pressure guiding passage, and a connecting hole connecting the slot and the outlet slot is bored in the inner portion of the orifice plate The pressure communication tube is fixed at the bottom end of the pressure communication tube, and the pressure communication hole communicates with the connection hole.

更進一步,本發明所述引壓通道是以沿上下方向延伸的形態穿設在所述的上安裝座,所述數據傳輸模組是以可拆卸的方式結合在所述上安裝座上並位於所述上存液管旁;所述各感應芯槽是形成在所述上安裝座,對應各感應芯槽的周圍,在該上安裝座的頂面朝下凹設一圓環形的線圈槽,各線圈槽與各感應芯槽同心,在各線圈槽內穿置一圓環形的線圈管,所述各感應線圈嵌設在各線圈管內,所述各電磁感應管結合在各線圈管的內面,各線圈管的頂端連接在該數據傳輸模組的底部,所述磁鐵結合在該數據傳輸模組的底部,所述壓力感測模組結合在該壓力感測模組的底部。Further, 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.

本發明使用時,可運用在生化領域、化工領域或採礦等領域中進行加料的計量。以下以本發明串接在醫療的輸液系統中使用為例子說明本發明如何使用。當本發明串接在輸液系統中進行計量使用時,是將本發明的上端插入輸液袋的底部,並將輸液管的頂端連接在存液管的底端,該輸液管的周圍設有調節輸液流量的調節輸液閥,並在調節輸液閥與本發明之間串接一滴斗,在該輸液管的外端連接一一次性針頭,當一次性針頭刺入人體時,從輸液袋內流出的藥液可流過本發明、滴斗、輸液管以及一次性針頭而注入人體。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. 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.

設有本發明的輸液系統在使用時,輸液袋內的藥液會先流入本發明形如滴斗的滴液管,接著滴液管內的藥液會從滴嘴以點滴的方式向下間歇滴落在存液管內,使存液管內的藥液逐漸淹過輸液管的頂端以及引壓通道的底端,最終藥液的液面會位於存液管的中間並低於該壓力連通管的頂端。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. Dropping 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 will be located in the middle of the liquid storage tube and below the pressure communication. The top of the tube.

當藥液從滴液管的滴嘴滴落存液管內時,會先滴落在壓力連通管的頂端,由於液體不可壓縮以及傳遞壓力無方向性的特性,使得藥液滴落壓力連通管的壓力能由壓力連通孔內的藥液傳遞至較接近引壓通道底端的位置,接著隨著存液管內的藥液傳遞至引壓通道內的空氣,讓壓力感測模組量測到單位時間內點滴數量的壓力變化,也感測到是否有藥液的點滴滴落在存液管內,接著將前述壓力感測模組量測到的壓力訊息,以無線或者有線的方式傳輸至數據處理中心或單晶片等裝置或元件進行計算處理。When the liquid medicine drops from the drip nozzle of the drip tube into the liquid storage tube, it will first drop on the top end of the pressure communication tube. Due to the incompressibility of the liquid and the non-directional property of the pressure transmission, 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 is measured as the liquid in the liquid storage tube is transferred to the air in the pressure guiding channel. The pressure change of the amount of drip per unit time also senses whether there is a drop of the liquid in the liquid storage tube, and then the pressure information measured by the pressure sensing module is transmitted to the wireless or wired method. A device or component such as a data processing center or a single chip performs calculation processing.

由於由滴嘴滴落存液管內的藥液點滴的大小相近,且每滴藥液的大小可預先由相同尺寸的滴液管處測得,因此當數據處理中心或單晶片接收到壓力感測模組量測到的壓力訊息時,可據此計算出單位時間內的藥液流量與藥液流動的速度,讓醫療人員理解輸液系統的狀況,依照輸液的需求進行輸液系統的流量調整;或者數據處理中心或單晶片可由沒有藥液滴落的訊息,判斷出輸液袋內的藥液的用量以及是否用盡需要更換,或者判斷出滴液管的壓力低於存液管內的壓力,可能會使一次性針頭處產生血液逆流的問題。Since the size of the liquid droplets in the liquid drop tube is similar by the drip nozzle, 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 wafer receives the pressure sense When measuring the pressure information measured by the module, 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; Alternatively, 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. It may cause problems with blood flow back at the disposable needle.

本發明是一種形如滴斗、將連續流量變為點滴流,進行逐滴計數的裝置,以壓力檢測器配合滴管本體的設計,量測滴管本體內落下的點滴數量,提供數據處理中心或單晶片等微電腦自動計算出輸液系統的輸液速度、輸液量、是否需要更換輸液袋以及是否可能發生血液逆流的狀況,可取代人工記錄的人力以及避免人工記錄時可能發生的誤差,又能即時監控輸液過程的進行,自動化監控輸液的過程,避免醫療疏失或人為意外的發生。The invention relates to a device which is shaped like a drip bucket, converts a continuous flow into a trickle flow, and performs a drop-by-drop counting. The pressure detector is combined with the design of the dropper body to measure the number of drops falling in the body of the dropper, and provides a data processing center. Or a micro-computer such as a single chip automatically calculates the infusion speed of the infusion system, the infusion volume, whether the infusion bag needs to be replaced, and whether the blood flow may occur. It can replace the labor of manual recording 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.

本發明是一個可以獨立運作的裝置,由於裝置自己具備滴管本體,因此受量測的點滴的大小為固定的大小,無需配合輸液系統的滴斗另外標定點滴的大小,只要知道配合使用的輸液袋的容量,即可正確計算出輸液袋的存量,因此可使用在任何現有的輸液袋上,不需要輸液袋生產廠家的配合。此外,本發明的體積小,功耗亦小,使用電池就可以實施,運用上非常方便。當本發明接入各種加料管路進行加料計量時,其連接方式可以是插入方式、螺紋連接方式或者其他快速接頭連接方式。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.

為能詳細瞭解本發明的技術特徵及實用功效,並可依照說明書的內容來實施,進一步以如圖式所示的較佳實施例,詳細說明如下。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.

請參看圖1至圖4所示的較佳實施例,本發明意在設計一種形如滴斗、將連續流量變為點滴流,進行逐滴計數的裝置,其構造包括一形如滴斗的滴管本體10,以及分別設於該滴管本體10的一壓力連通管20、一壓力感測模組30、三個驅動器40、一數據傳輸模組50以及一外蓋60,其中:Referring to the preferred embodiment shown in FIGS. 1 to 4, 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, and the configuration includes a shape such as a drip bucket. The dropper 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:

該滴管本體10設有一直管狀的上存液管11以及一直管狀的下存液管12,該上存液管11與該下存液管12是以上下直線相連的方式排列,在上存液管11周面的底部朝外凸設一上安裝座111,在下存液管12周面的頂部朝外凸設一下安裝座121,上安裝座111與下安裝座121分別是圓盤體且上、下結合,其結合手段可為黏合、扣合、鎖合或鉚合。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.

在上安裝座111與下安裝座121對接處的周圍嵌設一密封環13,在上安裝座111與下安裝座121對接處的中間開設一流量調整槽14,該流量調整槽14是圓盤形的空間,並且該流量調整槽14中間的頂側與中間的底側分別與上存液管11、下存液管12內相通,在上安裝座111的一側以沿上下方向延伸的形態穿設一引壓通道112,該引壓通道112的內端與流量調整槽14相通;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;

在該流量調整槽14的中間嵌設一帶孔板15,該帶孔板15是圓板體並且其中心與上存液管11以及下存液管12的中心同心,該帶孔板15的周緣夾合在上安裝座111與下安裝座121的對接處之間固定,該帶孔板15將流量調整槽14分隔為上、下兩部分,在帶孔板15的周圍以環繞且等間隔的排列方式垂直穿設三個流量調整孔151,三個流量調整孔151是圓孔並且面積的比例是1:2:4的比例,在帶孔板15頂面的中央凹設一插槽152,在該帶孔板15頂面位於該引壓通道112下方的位置凹設一出口槽153,在該帶孔板15的內部穿設一連通該插槽152以及該出口槽153的連接孔154。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.

在上安裝座111位於各流量調整孔151上方的位置分別穿設一感應芯槽113,各感應芯槽113是豎直的孔洞並且內端與該流量調整槽14相通,各感應芯槽113的外端是封閉端,在上安裝座111頂面對應各感應芯槽113外端的位置分別設有一磁鐵16,在各感應芯槽113內設置一可受各磁鐵16吸引定位的感應芯棒17,各感應芯棒17的內端形成一尖錐部171,對應各感應芯槽113的周圍,在上安裝座111的頂面朝下凹設一圓環形的線圈槽114,各線圈槽114與各感應芯槽113同心。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 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 capable of being 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. A circular coil groove 114 is recessed downwardly on the top surface of the upper mounting seat 111 corresponding to the periphery of each of the induction core grooves 113. Each of the sensing core slots 113 is concentric.

在上存液管11的頂部穿置一豎直的滴液管18,該滴液管18的寬度窄於上存液管11與下存液管12的寬度,在該滴液管18的頂部形成一尖端181,在該滴液管18的底部形成一漏斗狀的滴嘴182,該滴嘴182伸入上存液管11內頂部的正中央,在下存液管12的底端嵌設一橡皮塊19,該橡皮塊19封閉下存液管12的底端。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.

該壓力連通管20是豎直的管體並且以底端插設在該插槽152而固定在上存液管11內的中間,該壓力連通管20的頂端形成一斗部21,該斗部21位於滴嘴182的正下方,在壓力連通管20的內部形成一壓力連通孔22,該壓力連通孔22頂端的位置高於該引壓通道112內端的位置,且該壓力連通孔22的底端較頂端接近該引壓通道112的內端,該壓力連通孔22與帶孔板15的連接孔154相通,使得引壓通道112的內端被延伸至靠近引壓通道112內端周圍的位置。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. .

該壓力感測模組30,設於上安裝座111頂面並位於引壓通道112的外端,該壓力感測模組30封閉該引壓通道112的外端,且該壓力感測模組30可量測該引壓通道112內流體例如空氣的壓力變化。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.

各驅動器40分別在各線圈槽114內以可上下滑動的形態穿置一圓環形的線圈管41,在各線圈管41內嵌設一感應線圈42,在各線圈管41的內側結合一電磁感應管43,使各驅動器40的感應線圈42以及電磁感應管43環繞在各感應芯槽113內的感應芯棒17的周圍。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 electromagnetic unit is coupled to each of the coil tubes 41. The 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.

該數據傳輸模組50的外形是圓環體並且以可拆卸的方式結合在上安裝座111上,該數據傳輸模組50環繞在上存液管11的周圍,該壓力感測模組30結合在該數據傳輸模組50的底部,且該壓力感測模組30與該數據傳輸模組50電連接,該數據傳輸模組50包括一無線傳輸單元51,以無線傳輸單元51將該壓力感測模組30量測到的數據以無線的方式向外傳輸,各磁鐵16結合在該數據傳輸模組50的底部,各驅動器40的線圈管41的頂端連接在該數據傳輸模組50的底部,各感應線圈42與該數據傳輸模組50電連接,使得各感應線圈42受該數據傳輸模組50驅動;當數據傳輸模組50向上拆離上安裝座111時,該壓力感測模組30、各磁鐵16以及各驅動器40會一同離開原本定位在上安裝座111的位置。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. At the bottom of the data transmission module 50, 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 be separated from the position originally positioned at the upper mount 111.

該外蓋60是圓形的蓋體並以可拆卸的方式套蓋在上安裝座111上,該外蓋60的中間穿設一外蓋穿孔61,以外蓋穿孔61套設在滴液管18的周圍,所述的數據傳輸模組50、壓力感測模組30、以及各磁鐵16容納在外蓋60內,受外蓋60的保護。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. Around 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.

本發明較佳實施例使用時,如圖5至圖7所示,是以運用在醫療的輸液系統中為例子說明,當安裝時是將本發明的滴液管18的尖端181刺入輸液袋90的底部,該輸液袋90的內部裝有藥液,再將輸液管91的尖端911插入橡皮塊19內,在輸液管91的周圍設有一調節輸液閥93,在調節輸液閥93與本發明之間串接一滴斗94,以該輸液管91的外端連接一一次性針頭92,以該一次性針頭92可刺入人體進行藥液的注射。When the preferred embodiment of the present invention is used, as shown in 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. 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. 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.

配合本發明的數據傳輸模組50以及各驅動器40,在本發明的外部設有一數據處理中心100,該數據處理中心100可接受本發明數據傳輸模組50的無線傳輸單元51所傳輸的無線訊號,據此進行計算處理,接著將計算處理的結果,與操作者手動輸入數據處理中心100的數值進行比對判斷,接著依照判斷的結果發出控制各驅動器40的無線訊號給無線傳輸單元51,令數據傳輸模組50選擇性地控制各驅動器40運作。前述數據處理中心100配合本發明運作的過程詳細說明如下。In conjunction with the data transmission module 50 and the drivers 40 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 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 process of the foregoing data processing center 100 in conjunction with the operation of the present invention is described in detail below.

請配合參看圖5、圖6,當滴液管18的尖端181刺入輸液袋90內時,藥液會從輸液袋90先流入滴管本體10的滴液管18內,接著滴液管18內的藥液會從滴嘴182以點滴的方式向下間歇滴落,滴在壓力連通管20頂端的斗部21上,使藥液逐漸充滿下存液管12、流量調整槽14、壓力連通管20的壓力連通孔22以及帶孔板15內的連接孔154,在滴管本體10內的藥液的液面高度最後會介於引壓通道112的底端與壓力連通管20的頂端之間。接著滴管本體10內的藥液會由刺入滴管本體10底部的輸液管91向外流出至一次性針頭92處,再由一次性針頭92向人體內注射。Referring to FIG. 5 and FIG. 6, 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 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. 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.

在藥液由滴嘴182間歇滴落的過程中,滴落在斗部21的藥液會對壓力連通孔22內的液體施加瞬間的壓力,由於液體有不可壓縮以及傳遞壓力無方向性的特性,此瞬間的壓力會透過連接孔154內的藥液傳遞至引壓通道112底端的周圍,使該處的藥液朝引壓通道112內的空氣施加壓力,使壓力感測模組30能偵測到由滴嘴182間歇滴落的藥液所產生的瞬間壓力的大小、單位時間滴落藥液的數量以及感知到有無持續滴落藥液,並將上述的壓力數據由數據傳輸模組50的無線傳輸單元51以無線的方式傳輸至數據處理中心100接收。During the intermittent dropping of the chemical liquid by the dropping nozzle 182, 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 applies pressure to the air in the pressure guiding passage 112, so that the pressure sensing module 30 can detect The magnitude of the instantaneous pressure generated by the liquid medicine intermittently dripped by the dropping nozzle 182, the amount of the liquid medicine dropped per unit time, and the presence or absence of the continuous dropping liquid are sensed, and the above pressure data is transmitted from the data transmission module 50. The wireless transmission unit 51 is wirelessly transmitted to the data processing center 100 for reception.

由於由滴嘴182出口滴落的每滴藥液的大小相近,且每滴藥液的大小可預先測得輸入數據處理中心100,因此當數據處理中心100接收到壓力感測模組30偵測到的壓力數據時,可據此計算出單位時間內的藥液流量與藥液流動的速度,並將此藥液的流量、速度與操作者例如醫護人員預先輸入數據處理中心100的數值比較,接著數據處理中心100向數據傳輸模組50的無線傳輸單元51發出控制各驅動器40調整藥液流量的無線訊號,使藥液流量調整至醫護人員預先輸入數據處理中心100的數值。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 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. When 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. Then, 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.

前述間歇滴落藥液所產生瞬間壓力的大小數據,能讓數據處理中心100排除掉壓力明顯低於平均數值的數據,排除誤報點滴數量的狀況。前述有無持續滴落藥液的數據處理,則是由於輸液袋90內的藥液容量已知,若數據處理中心100計算出輸液袋90流出的藥液體積符合輸液袋90的藥液容量,且此時壓力感測模組30輸出的數據顯示無滴落藥液,這時數據處理中心100即可判斷輸液袋90內的藥液已流盡,發出訊息通知醫護人員更換輸液袋90,同時數據處理中心100向數據傳輸模組50的無線傳輸單元51發出控制各驅動器40禁止藥液流出的無線訊號。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, 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, At this time, the data outputted by the pressure sensing module 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 at the same time, data processing. The 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.

如圖5、圖7所示,若壓力感測模組30輸出的數據顯示滴嘴182無滴落藥液,且數據處理中心100計算出輸液袋90流出的藥液體積少於輸液袋90的藥液容量,這時數據處理中心100即可判斷滴液管18內的壓力低於,或者與輸液管91輸出的壓力相等,一次性針頭92處可能會發生血液逆流回輸液管91的狀況,這時數據處理中心100向數據傳輸模組50的無線傳輸單元51發出控制各驅動器40禁止藥液流動的無線訊號。As shown in FIG. 5 and FIG. 7 , if the data output by the pressure sensing module 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 that of the infusion bag 90 . The liquid medicine capacity, 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. 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.

請配合參看圖8,當數據傳輸模組50的無線傳輸單元51收到數據處理中心100傳輸的控制各驅動器40調整藥液流量或停止藥液流出的無線訊號時,是依照所需要的藥液流量、流速高低,以數據傳輸模組50選擇性地驅動各驅動器40的感應線圈42,使各感應線圈42驅動各感應芯棒17向下移動或回復原位,使各感應芯棒17以其尖錐部171封閉對應的流量調整孔151,或使對應的流量調整孔151成為開放的狀態。上述本發明用來調整輸液流量的構造,無需在外部設有驅動作用的電動、氣動裝置,因此使得本發明整體的重量可以小至40公克左右,相較於需要外加驅動裝置的現有輸液系統,只有50分之一的重量,使本發明使用上更加方便。Referring to FIG. 8 , when 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 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.

如圖4所示,由於帶孔板15上的三個流量調整孔151的面積是1:2:4的比例,因此驅動各感應芯棒17選擇性地封閉各流量調整孔151的方式可組合出0以及1至7等8種流通面積的變化,當需要較高的藥液流量、流速時,是將三個流量調整孔151全部開啟,當需要禁止藥液流動時,則是以三個感應芯棒17將三個流量調整孔151全部封閉。本發明藉由上述與數據處理中心100配合的方式,可達到計算輸液流量、流速,偵測輸液袋90是否需要更換以及偵測一次性針頭92是否發生血液逆流狀況的效果,發揮輸液時全程監控的功效,避免人工記錄輸液速度所可能發生的疏失以及意外。As shown in FIG. 4, 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. When there are 8 kinds of flow area changes such as 0 and 1 to 7, when three high flow rates and flow rates are required, all three flow adjustment holes 151 are opened, and when it is necessary to prohibit the flow of the liquid, three are The induction mandrel 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.

如圖1、圖3所示,由於本發明的外蓋60為可拆,且該壓力感測模組30結合在該數據傳輸模組50的底部,各磁鐵16結合在該數據傳輸模組50的底部,各驅動器40的線圈管41的頂端連接在該數據傳輸模組50的底部,因此當本發明使用完畢後,接觸過藥液的滴管本體10是醫療廢棄物,是只能一次性使用的部分,使用完畢之後需要拋棄不可重複使用,但外蓋60以及該數據傳輸模組50連同該壓力感測模組30、各磁鐵16以及各驅動器40可拆離滴管本體10的上安裝座111重複使用,因此可重複配合一次性使用的滴管本體10組成本發明再次使用,達到節省費用的效果。As shown in FIG. 1 and FIG. 3 , since the outer cover 60 of the present invention is detachable, and the pressure sensing module 30 is coupled to the bottom of the data transmission module 50 , each magnet 16 is coupled to the data transmission module 50 . At the bottom of the bottom, 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.

本發明除前述較佳實施例,是在外部設有所述的數據處理中心100,以外部的數據處理中心100接受數據傳輸模組50傳輸的壓力數據,以壓力數據進行計算處理並且控制各驅動器40動作以外,請配合參看圖9,也可以將數據處理中心100的功能以一單晶片101取代,將該單晶片101設於所述的數據傳輸模組50上,使該單晶片101與該數據傳輸模組50電連接,接受數據傳輸模組50直接傳輸壓力感測模組30量測到的壓力數據,並控制各驅動器40驅動各感應芯棒17動作,此時數據傳輸模組50可不設有所述的無線傳輸單元51。當數據傳輸模組50拆離滴管本體10的上安裝座111時,該單晶片101也可以隨著數據傳輸模組50一同拆卸,同樣具有可重複使用的效果。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 pressure data transmitted by the data transmission module 50, performs calculation processing with pressure data, and controls each driver. In addition to the operation of 40, please refer to FIG. 9. 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 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. When the data transfer module 50 is detached from the upper mount 111 of the dropper body 10, the single wafer 101 can also be detached along with the data transfer module 50, and has the same reusable effect.

本發明除前述較佳實施例,是將上存液管11與下存液管12分為兩個部分以組成滴管本體10以外,也可以不設有所述的密封環13,直接將上存液管11及其周圍的上安裝座111,以及下存液管12及其周圍的下安裝座121結合為一體,成為存液管與設於該存液管周圍的安裝座的構造。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.

本發明除前述較佳實施例,是將所述的壓力連通管20固定在所述的帶孔板15的中央以外,也可以不將壓力連通管20固定在帶孔板15的中央,而是在壓力連通管20與上、下存液管11、12之間設有鏤空的支架,將壓力連通管20固定在滴管本體10內的中間,此時壓力連通管20的底端可彎曲並朝引壓通道112底端的方向延伸,使所述的壓力連通孔22的底端比頂端更接近引壓通道112的底端,令滴落壓力連通管20頂端的藥液點滴的壓力能夠更順利地傳遞至引壓通道112內,供壓力感測模組30量測。In addition to the foregoing preferred embodiment, 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.

10‧‧‧滴管本體
11‧‧‧上存液管
111‧‧‧上安裝座
112‧‧‧引壓通道
113‧‧‧感應芯槽
114‧‧‧線圈槽
12‧‧‧下存液管
121‧‧‧下安裝座
13‧‧‧密封環
14‧‧‧流量調整槽
15‧‧‧帶孔板
151‧‧‧流量調整孔
152‧‧‧插槽
153‧‧‧出口槽
154‧‧‧連接孔
16‧‧‧磁鐵
17‧‧‧感應芯棒
171‧‧‧尖錐部
18‧‧‧滴液管
181‧‧‧尖端
182‧‧‧滴嘴
19‧‧‧橡皮塊
20‧‧‧壓力連通管
21‧‧‧斗部
22‧‧‧壓力連通孔
30‧‧‧壓力感測模組
40‧‧‧驅動器
41‧‧‧線圈管
42‧‧‧感應線圈
43‧‧‧電磁感應管
50‧‧‧數據傳輸模組
51‧‧‧無線傳輸單元
60‧‧‧外蓋
61‧‧‧外蓋穿孔
80‧‧‧輸液袋
81‧‧‧輸液管
82‧‧‧一次性針頭
83‧‧‧滴斗
84‧‧‧輸液調節閥
90‧‧‧輸液袋
91‧‧‧輸液管
911‧‧‧尖端
92‧‧‧一次性針頭
93‧‧‧調節輸液閥
94‧‧‧滴斗
100‧‧‧數據處理中心
101‧‧‧單晶片
10‧‧‧Dripper body
11‧‧‧Upper storage tube
111‧‧‧上上座
112‧‧‧Induced pressure channel
113‧‧‧Induction core slot
114‧‧‧ 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
152‧‧‧ slots
153‧‧‧Exit slot
154‧‧‧connection hole
16‧‧‧ magnet
17‧‧‧Induction mandrel
171‧‧‧spirt
18‧‧‧Drip tube
181‧‧‧ cutting-edge
182‧‧‧ dripping mouth
19‧‧‧ Rubber block
20‧‧‧ Pressure connecting tube
21‧‧‧Double
22‧‧‧ Pressure connection hole
30‧‧‧ Pressure Sensing Module
40‧‧‧ drive
41‧‧‧ coil tube
42‧‧‧Induction coil
43‧‧‧Electromagnetic induction tube
50‧‧‧Data transmission module
51‧‧‧Wireless transmission unit
60‧‧‧ Cover
61‧‧‧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

圖1是本發明較佳實施例的剖面示意圖。 圖2是本發明較佳實施例的另一剖面示意圖。 圖3是本發明較佳實施例將可重複使用部分拆離的剖面示意圖。 圖4是本發明較佳實施例帶孔板的俯視圖。 圖5是本發明較佳實施例安裝在輸液系統的實施示意圖。 圖6是本發明較佳實施例安裝在輸液系統傳輸藥液點滴壓力數據的示意圖。 圖7是本發明較佳實施例安裝在輸液系統藥液停止滴落的示意圖。 圖8是本發明較佳實施例安裝在輸液系統調整藥液流量的示意圖。 圖9是本發明較佳實施例增設單晶片的剖面示意圖。 圖10是現有輸液系統的外觀示意圖。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic cross-sectional view of a preferred embodiment of the present invention. 2 is another schematic cross-sectional view of a preferred embodiment of the present invention. Figure 3 is a schematic cross-sectional view showing the reusable portion of the preferred embodiment of the present invention. 4 is a top plan view of a perforated plate in accordance with a preferred embodiment of the present invention. Figure 5 is a schematic illustration of an embodiment of a preferred embodiment of the present invention installed in an infusion system. Figure 6 is a schematic illustration of the droplet pressure data for delivery of a drug solution installed in an infusion system in accordance with a preferred embodiment of the present invention. Fig. 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 illustration of the preferred embodiment of the present invention for adjusting the flow rate of a drug solution in an infusion system. 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.

10‧‧‧滴管本體 10‧‧‧Dripper body

11‧‧‧上存液管 11‧‧‧Upper storage tube

111‧‧‧上安裝座 111‧‧‧上上座

112‧‧‧引壓通道 112‧‧‧pressure channel

114‧‧‧線圈槽 114‧‧‧ coil slot

12‧‧‧下存液管 12‧‧‧ under the storage tube

121‧‧‧下安裝座 121‧‧‧下下座

14‧‧‧流量調整槽 14‧‧‧Flow adjustment slot

15‧‧‧帶孔板 15‧‧‧With orifice plate

153‧‧‧出口槽 153‧‧‧Exit slot

154‧‧‧連接孔 154‧‧‧connection hole

17‧‧‧感應芯棒 17‧‧‧Induction mandrel

18‧‧‧滴液管 18‧‧‧Drip tube

181‧‧‧尖端 181‧‧‧ cutting-edge

182‧‧‧滴嘴 182‧‧‧ dripping mouth

20‧‧‧壓力連通管 20‧‧‧ Pressure connecting tube

21‧‧‧斗部 21‧‧‧Double

22‧‧‧壓力連通孔 22‧‧‧ Pressure connection hole

30‧‧‧壓力感測模組 30‧‧‧ Pressure Sensing Module

41‧‧‧線圈管 41‧‧‧ coil tube

42‧‧‧感應線圈 42‧‧‧Induction coil

43‧‧‧電磁感應管 43‧‧‧Electromagnetic induction tube

50‧‧‧數據傳輸模組 50‧‧‧Data transmission module

51‧‧‧無線傳輸單元 51‧‧‧Wireless transmission unit

60‧‧‧外蓋 60‧‧‧ Cover

Claims (10)

一種液體流量測量裝置,包括: 一滴管本體,設有一存液管,在該存液管的周圍形成一安裝座,在該安裝座穿設一引壓通道,該引壓通道的內端與該存液管的內部相通,在該存液管的頂部穿設一滴液管,該滴液管的寬度窄於該存液管的寬度,在該滴液管的底部形成一漏斗狀的滴嘴; 一壓力連通管,固定在該存液管內的中間,該壓力連通管的頂端位於該滴嘴的正下方,在該壓力連通管內形成一壓力連通孔,該壓力連通孔的底端較頂端接近該引壓通道的內端;以及 一壓力感測模組,設於該引壓通道的外端,該壓力感測模組封閉該引壓通道的外端,且該壓力感測模組可量測該引壓通道內流體的壓力變化。A liquid flow measuring device comprising: a dropper body, a liquid storage tube, a mounting seat formed around the liquid storage tube, a pressure guiding passage is formed in the mounting seat, and the inner end of the pressure guiding channel is The inside of the liquid storage tube communicates with a liquid drop tube at 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, and the bottom end of the pressure communication hole is higher than the top end The pressure sensing module is disposed at an outer end of the pressure guiding channel, and the pressure sensing module closes an outer end of the pressure guiding channel, and the pressure sensing module can be The pressure change of the fluid in the pressure guiding channel is measured. 如請求項1記載的液體流量測量裝置,其中在所述安裝座設有一數據傳輸模組,該數據傳輸模組與該壓力感測模組電連接,從而傳輸該壓力感測模組量測到的點滴壓力數據。The liquid flow measuring device according to claim 1, wherein a data transmission module is disposed in the mounting base, and the data transmission module is electrically connected to the pressure sensing module, thereby transmitting the pressure sensing module to measure Drip pressure data. 如請求項2記載的液體流量測量裝置,其中所述數據傳輸模組包括一無線傳輸單元,以該無線傳輸單元將所述壓力感測模組量測到的點滴壓力數據以無線的方式向外傳輸。The liquid flow measuring device according to claim 2, wherein the data transmission module comprises a wireless transmission unit, and the droplet pressure data measured by the pressure sensing module is wirelessly outward. transmission. 如請求項2記載的液體流量測量裝置,其中在所述數據傳輸模組上設有一單晶片,該單晶片與該數據傳輸模組電連接,接受該數據傳輸模組傳輸的點滴壓力數據,並依此感知所述滴液管是否有點滴落下、測量出落下的點滴數量、計算出單位時間通過所述滴液管的藥液流量與流速。The liquid flow measuring device of claim 2, wherein a single chip is disposed on the data transmission module, the single chip is electrically connected to the data transmission module, and receives the droplet pressure data transmitted by the data transmission module, and According to this, it is perceived whether the drip tube is dripping a little, the number of dropped drops is measured, and the flow rate and flow rate of the drug solution passing through the drip tube per unit time are calculated. 如請求項2或3記載的液體流量測量裝置,其中所述的存液管分為直線相連的一上存液管以及一下存液管,所述安裝座分為上、下相結合的一上安裝座以及一下安裝座,且上、下安裝座分別形成在上存液管底部的周圍以及該下存液管頂部的周圍,在上安裝座與下安裝座對接處的中間開設一流量調整槽,該流量調整槽的中間與上、下存液管相通,在該流量調整槽的中間嵌設一帶孔板,該帶孔板將該流量調整槽分隔為上、下兩部分,在帶孔板的周圍穿設複數個流量調整孔﹔ 在該安裝座對正各流量調整孔的位置分別穿設一感應芯槽,各感應芯槽是豎直的孔洞並且內端與該流量調整槽相通,各感應芯槽的外端是封閉端,在該安裝座對應各感應芯槽外端的位置分別設有一磁鐵,在各感應芯槽的周圍設置一電磁感應管以及一環繞該電磁感應管的感應線圈,各感應線圈與所述數據傳輸模組電連接,在各感應芯槽內設置一可受各磁鐵吸引定位的感應芯棒,各感應芯棒的內端形成一尖錐部。The liquid flow measuring device according to claim 2 or 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 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 disposed around the device; a sensing core slot is respectively disposed at a position of each of the flow adjusting holes, wherein each of the sensing core slots is a vertical hole and the inner end is in communication with the flow adjusting groove, The outer end of the induction core 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. Various induction Ring and electrically connected to the data transfer module, in the inductive core groove may be provided by a positioning of the magnets attract sensing mandrel, the inner end of the sensing mandrel to form a taper portion. 如請求項5記載的液體流量測量裝置,其中所述引壓通道是以沿上下方向延伸的形態穿設在所述的上安裝座,該引壓通道的內端與所述流量調整槽相通,在所述帶孔板頂面的中間凹設一插槽,在該帶孔板頂面位於該引壓通道下方的位置凹設一出口槽,在該帶孔板的內部穿設一連通該插槽以及該出口槽的連接孔,所述的壓力連通管以其底端插設在該插槽固定,所述的壓力連通孔與該連接孔相通。The liquid flow measuring device according to claim 5, wherein the pressure guiding passage is disposed in the upper mounting seat in a manner of extending in an up-and-down direction, and an inner end of the pressure guiding passage communicates with the flow regulating groove. a slot is recessed in the middle of the top surface of the perforated plate, and an exit slot is recessed at a position of the top surface of the perforated plate below the pressure guiding channel, and a plug is connected to the inside of the perforated plate a slot and a connecting hole of the outlet slot, wherein the pressure communication tube is fixed at the bottom end of the slot, and the pressure communication hole communicates with the connecting hole. 如請求項5記載的液體流量測量裝置,其中所述引壓通道是以沿上下方向延伸的形態穿設在所述的上安裝座,所述數據傳輸模組是以可拆卸的方式結合在所述上安裝座上並位於所述上存液管旁;所述各感應芯槽是形成在所述上安裝座,對應各感應芯槽的周圍,在該上安裝座的頂面朝下凹設一圓環形的線圈槽,各線圈槽與各感應芯槽同心,在各線圈槽內穿置一圓環形的線圈管,所述各感應線圈嵌設在各線圈管內,所述各電磁感應管結合在各線圈管的內面,各線圈管的頂端連接在該數據傳輸模組的底部,所述磁鐵結合在該數據傳輸模組的底部,所述壓力感測模組結合在該壓力感測模組的底部。The liquid flow measuring device according to claim 5, wherein the pressure guiding passage is disposed in the upper mounting seat in a manner of extending in an up-and-down direction, and the data transmission module is detachably coupled thereto. Referring to the mounting seat and located beside the upper liquid storage tube; the sensing core slots are formed on the upper mounting seat, corresponding to the periphery of each of the sensing core slots, and the top surface of the upper mounting seat is recessed downward a circular coil groove, each coil groove is concentric with each of the induction core grooves, and a circular coil tube is disposed in each coil groove, and the induction coils are embedded in each coil tube, and the electromagnetics are The induction tube is coupled to the inner surface of each coil tube, the top end 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 pressure The bottom of the sensing module. 如請求項4記載的液體流量測量裝置,其中所述的存液管分為直線相連的一上存液管以及一下存液管,所述安裝座分為上、下相結合的一上安裝座以及一下安裝座,且上、下安裝座分別形成在上存液管底部的周圍以及該下存液管頂部的周圍,在上安裝座與下安裝座對接處的中間開設一流量調整槽,該流量調整槽的中間與上、下存液管相通,在該流量調整槽的中間嵌設一帶孔板,該帶孔板將該流量調整槽分隔為上、下兩部分,在帶孔板的周圍穿設複數個流量調整孔﹔ 在該安裝座對正各流量調整孔的位置分別穿設一感應芯槽,各感應芯槽是豎直的孔洞並且內端與該流量調整槽相通,各感應芯槽的外端是封閉端,在該安裝座對應各感應芯槽外端的位置分別設有一磁鐵,在各感應芯槽的周圍設置一電磁感應管以及一環繞電磁感應管的感應線圈,各感應線圈與所述數據傳輸模組電連接,所述單晶片可控制各別的感應線圈作用,在各感應芯槽內設置一可受各磁鐵吸引定位的感應芯棒,各感應芯棒的內端形成一尖錐部。The liquid flow measuring device according to claim 4, 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 base 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 of the mounting seat, wherein each of the induction core grooves is a vertical hole and the inner end communicates 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 The data transmission module is electrically connected, and the single chip can control the function of each induction coil, 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 Tip cone. 如請求項8記載的液體流量測量裝置,其中所述引壓通道是以沿上下方向延伸的形態穿設在所述的上安裝座,該引壓通道的內端與所述流量調整槽相通,在所述帶孔板頂面的中間凹設一插槽,在該帶孔板頂面位於該引壓通道下方的位置凹設一出口槽,在該帶孔板的內部穿設一連通該插槽以及該出口槽的連接孔,所述的壓力連通管以其底端插設在該插槽固定,所述的壓力連通孔與該連接孔相通。The liquid flow measuring device according to claim 8, wherein the pressure guiding passage is disposed in the upper mounting seat in a manner of extending in an up-and-down direction, and an inner end of the pressure guiding passage communicates with the flow regulating groove. a slot is recessed in the middle of the top surface of the perforated plate, and an exit slot is recessed at a position of the top surface of the perforated plate below the pressure guiding channel, and a plug is connected to the inside of the perforated plate a slot and a connecting hole of the outlet slot, wherein the pressure communication tube is fixed at the bottom end of the slot, and the pressure communication hole communicates with the connecting hole. 如請求項8記載的液體流量測量裝置,其中所述引壓通道是以沿上下方向延伸的形態穿設在所述的上安裝座,所述數據傳輸模組是以可拆卸的方式結合在所述上安裝座上並位於所述上存液管旁;所述各感應芯槽是形成在所述上安裝座,對應各感應芯槽的周圍,在該上安裝座的頂面朝下凹設一圓環形的線圈槽,各線圈槽與各感應芯槽同心,在各線圈槽內穿置一圓環形的線圈管,所述各感應線圈嵌設在各線圈管內,所述各電磁感應管結合在各線圈管的內面,各線圈管的頂端連接在該數據傳輸模組的底部,所述磁鐵結合在該數據傳輸模組的底部,所述壓力感測模組結合在該壓力感測模組的底部。The liquid flow measuring device according to claim 8, wherein the pressure guiding passage is disposed in the upper mounting seat in a manner of extending in an up and down direction, and the data transmission module is detachably coupled thereto. Referring to the mounting seat and located beside the upper liquid storage tube; the sensing core slots are formed on the upper mounting seat, corresponding to the periphery of each of the sensing core slots, and the top surface of the upper mounting seat is recessed downward a circular coil groove, each coil groove is concentric with each of the induction core grooves, and a circular coil tube is disposed in each coil groove, and the induction coils are embedded in each coil tube, and the electromagnetics are The induction tube is coupled to the inner surface of each coil tube, the top end 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 pressure The bottom of the sensing module.
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EP1051987A2 (en) * 1999-05-10 2000-11-15 Medico's Hirata Inc. Automatic control-type, portable instillation apparatus
TWM289651U (en) * 2005-11-01 2006-04-21 Lee Ju Lin Intravenous drip automatically detecting device
CN201689107U (en) * 2009-12-25 2010-12-29 周文真 Pressure type transfusion speed sensor
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