TW202009021A - Drip rate regulating device - Google Patents

Abstract

A drip rate regulating device, includes a screw joint connected to a liquid input conduit, and a spiral sleeve that can adjust the liquid flow rate and connect to the liquid output conduit. When the spiral sleeve movable nut is engaged with the screw of the screw joint, the metal fine core inside the spiral sleeve is gradually inserted into the metal capillary inside the spiral joint, so that an annular cylindrical passage is formed between the inner wall of the metal capillary and the metal fine core. When the liquid flows through the annular cylindrical passage, the viscous force generated by the liquid and the surface of the annular cylindrical passage will slow down the liquid flow rate; when the movable nut is screwed into the screw joint, the depth of the metal fine core inserted in the metal capillary will changes, and the length of the annular cylindrical passage will changes, thereby the liquid flow rate will changes.

Description

Translated fromChinese

滴注速率調整裝置 Drip rate adjustment device

本發明係關於一種液體流量調整裝置；特別關於一種滴注速率調整裝置，係利用液體流經該裝置期間改變黏滯力總和以調整液體之流速。The invention relates to a liquid flow adjustment device; in particular, to a drip rate adjustment device, which uses the change of the total viscous force during the flow of the liquid through the device to adjust the flow rate of the liquid.

已知技術之靜脈注射裝置之液體流速調整方式，係以外部壓迫導管使管壁變平減緩液體流速，或以電子開關調整液體通過閥門單位時間內之流量，輔以目測或電子感應滴落速度方式調整管壁開口大小或閥門開啟時間，以達成液體流速之控制。The liquid flow rate adjustment method of the intravenous injection device of the known technology is to flatten the wall of the tube by externally pressing the catheter to slow down the liquid flow rate, or to adjust the flow rate of liquid through the valve per unit time with an electronic switch, supplemented by visual observation or electronic induction dripping speed Adjust the opening size of the pipe wall or the opening time of the valve to achieve the control of the liquid flow rate.

例如1986年4月29日公告之美國專利公報第4,585,442號中披露之一典型裝置係包括一靜脈滴注速率控制裝置………。For example, a typical device disclosed in US Patent Gazette No. 4,585,442 published on April 29, 1986 includes an intravenous drip rate control device...

例如1985年1月15日公告之美國專利公報第4,493,710號中披露之一典型裝置係包括一種靜脈滴注速率控制裝置………。For example, a typical device disclosed in US Patent Publication No. 4,493,710 published on January 15, 1985 includes an intravenous drip rate control device...

例如2014年12月21日公告之中華明國專利資訊檢索第M492166號中披露之一典型裝置係包括一種注射點滴調節器………。For example, a typical device disclosed in China Patent Information Search No. M492166 published on December 21, 2014 includes an injection drip regulator...

已知之靜脈滴注速率控制裝置僅限於數種功能。例如，一裝置必須以外力壓迫軟管方能使軟管管壁開啟或閉合，以便讓液體通過以控制流速，該管壁形所成之間隙大小難以做精確的調整，無法對液體流量做 精確的控制。而且，已知技術之裝置體積龐大不易固定，此類電器設備結構複雜亦難以達到清潔防水、避免汙染之需求。此外，該已知技術之裝置必須供應足夠之電源，難以在室外做長期使用。The known intravenous drip rate control device is limited to several functions. For example, a device must press the hose with external force to open or close the hose wall in order to let the liquid pass to control the flow rate. The gap size formed by the wall shape is difficult to accurately adjust, and the liquid flow cannot be accurately adjusted. control. Moreover, the devices of the known technology are bulky and difficult to be fixed, and the structure of such electrical equipment is complex, and it is difficult to meet the requirements of cleanness, waterproofness, and pollution prevention. In addition, the device of the known technology must supply sufficient power to make it difficult to use outdoors for a long time.

因此，需要發展一成本低廉、精確度高、操作容易、便於攜帶之滴注速率調整裝置。其不僅結構簡單、穩定耐用，也因為體積小巧容易清潔，在使用後可簡化回收流程避免汙染。Therefore, there is a need to develop a drip rate adjustment device with low cost, high accuracy, easy operation, and portability. It is not only simple in structure, stable and durable, but also easy to clean because of its small size, which can simplify the recycling process after use to avoid pollution.

本發明之滴注速率調整裝置，包括一連接在液體輸入導管之螺旋接頭，及一可以調整液體輸出速度，並連接液體輸出導管之螺旋套管。當螺旋套管活動螺帽與螺旋接頭之螺牙接合時，帶動螺旋套管內部之金屬細蕊逐漸插入螺旋接頭內部之金屬毛細管內，使金屬毛細管內壁與金屬細蕊間形成一環形柱狀通道。當液體流經此一環形柱狀通道時，液體與環形柱狀通道表面產生之黏滯力總和將減緩液體通過的速度；當調整活動螺帽旋入螺旋接頭螺牙圈數時，金屬細蕊插入金屬毛細管之深度隨之變化，同時改變環形柱狀通道之長度，藉此改變液體通過的速度。The drip rate adjusting device of the present invention includes a screw joint connected to the liquid input conduit, and a screw sleeve that can adjust the liquid output speed and is connected to the liquid output conduit. When the movable nut of the spiral sleeve is engaged with the thread of the screw joint, the metal fine core inside the spiral sleeve is gradually inserted into the metal capillary inside the spiral joint, so that an annular columnar shape is formed between the inner wall of the metal capillary and the metal fine core aisle. When the liquid flows through this annular cylindrical channel, the sum of the viscous force generated by the liquid and the surface of the annular cylindrical channel will slow down the speed of the liquid; when the number of screw threads of the screw joint is adjusted, the fine metal core The depth of the inserted metal capillary changes accordingly, and at the same time the length of the annular cylindrical channel is changed, thereby changing the speed of liquid passage.

本發明之效果能控制液體以極低的流量做穩定的輸出，也可以線性調整出數十種不同級距之液體流速，參考第7圖之液體流量對照表。讓使用者可以計算出在時間內通過之流量總和，藉此估計出補充液體或更換容器之時間。The effect of the present invention can control the liquid to make a stable output at a very low flow rate, and can also linearly adjust the liquid flow rate of dozens of different stages. Refer to the liquid flow comparison table in Figure 7. Allows the user to calculate the sum of the flow rate passed in time, thereby estimating the time to replenish the liquid or replace the container.

1‧‧‧滴注速率調整裝置1‧‧‧Dropping rate adjustment device

2‧‧‧螺旋接頭2‧‧‧Screw connector

3‧‧‧螺旋套管3‧‧‧Spiral casing

4‧‧‧螺旋接頭液體導入口4‧‧‧ screw joint liquid inlet

5‧‧‧螺旋接頭液體導出口外壁螺牙5‧‧‧Screw joint liquid outlet screw

6‧‧‧金屬毛細管6‧‧‧Metal capillary

7‧‧‧金屬毛細管液體導出口端外壁止水橡膠圈7‧‧‧ Metal capillary liquid outlet end outer wall water stop rubber ring

8‧‧‧螺旋套管液體導入口外壁C形彈性卡榫8‧‧‧C-shaped elastic latch on the outer wall of the liquid inlet of the spiral sleeve

9‧‧‧螺旋套管活動螺帽9‧‧‧Screw casing movable nut

10‧‧‧螺旋套管活動螺帽內壁螺牙10‧‧‧Screw casing movable nut inner wall thread

11‧‧‧螺旋套管液體導出口11‧‧‧ Spiral casing liquid outlet

12‧‧‧金屬細蕊12‧‧‧Metal fine core

13‧‧‧固定片13‧‧‧Fixed film

14‧‧‧金屬細蕊止水橡膠圈14‧‧‧Waterproof rubber ring with fine metal core

15‧‧‧環形柱狀通道15‧‧‧Annular cylindrical channel

16‧‧‧靜脈注射裝置吊桿16‧‧‧Intravenous injection device boom

17‧‧‧靜脈注射裝置掛勾17‧‧‧Intravenous injection device hook

18‧‧‧靜脈注射裝置藥品容器18‧‧‧Intravenous injection device medicine container

19‧‧‧液體入口導管19‧‧‧Liquid inlet conduit

20‧‧‧液體出口導管20‧‧‧Liquid outlet conduit

21‧‧‧靜脈注射裝置觀測窗21‧‧‧Intravenous injection device observation window

22‧‧‧靜脈注射針頭22‧‧‧Intravenous injection needle

第1圖係根據本發明之滴注速率調整裝置透視圖。Figure 1 is a perspective view of the drip rate adjusting device according to the present invention.

第2圖係本發明之螺旋套管(左下)與螺旋接頭(右上)接合方式透視圖。FIG. 2 is a perspective view of the joining manner of the spiral sleeve (lower left) and the spiral joint (upper right) of the present invention.

第3圖係本發明之細部分件接合方式透視圖。Fig. 3 is a perspective view of the joining method of the thin parts of the present invention.

第4圖係本發明之側視圖。Figure 4 is a side view of the present invention.

第5圖係本發明之側視剖面圖。Fig. 5 is a side sectional view of the present invention.

第6圖係本發明之使用狀態參考圖。Fig. 6 is a reference diagram of the use state of the present invention.

第7圖係本發明之理論計算值之液體流量對照參考表。Fig. 7 is a reference table for comparison of the liquid flow rate with the theoretical calculated value of the present invention.

通常根據本發明，該最佳滴注速率調整裝置包括一螺旋套管及一螺旋接頭，螺旋套管以活動螺帽旋入螺旋接頭螺牙之方式接合於螺旋接頭。請參考第1圖與第5圖，微流體流量調整裝置1包括一螺旋接頭2及一螺旋套管3。當螺旋套管3以活動螺帽9內壁螺牙10接合於螺旋接頭液體導出口外壁螺牙5時，螺旋套管3內部之金屬細蕊12逐漸插入螺旋接頭2內部之金屬毛細管6內，使金屬毛細管6與金屬細蕊12接合處之間形成一環形柱狀通道15。調整活動螺帽9旋入螺旋接頭液體導出口外壁螺牙5之圈數，帶動金屬細蕊12插入金屬毛細管6之深度，改變環形柱狀通道15之長度以調整液體流量。Generally according to the present invention, the optimal drip rate adjustment device includes a spiral sleeve and a spiral joint. The spiral sleeve is joined to the spiral joint in such a manner that the movable nut is screwed into the screw thread of the spiral joint. Please refer to FIG. 1 and FIG. 5, the microfluidicflow adjusting device 1 includes ascrew joint 2 and ascrew sleeve 3. When thespiral sleeve 3 is connected to theexternal thread 5 of the screw joint liquid outlet with theinner thread 10 of themovable nut 9, the metalfine core 12 inside thespiral sleeve 3 is gradually inserted into themetal capillary 6 inside thespiral joint 2, An annularcylindrical channel 15 is formed between the junction of themetal capillary 6 and themetal core 12. Adjust the number of turns of themovable nut 9 screwed into theouter wall screw 5 of the liquid outlet of the screw joint, drive the depth of the metalfine core 12 inserted into themetal capillary 6, and change the length of the annularcylindrical channel 15 to adjust the liquid flow rate.

1‧‧‧滴注速率調整裝置1‧‧‧Dropping rate adjustment device

2‧‧‧螺旋接頭2‧‧‧Screw connector

3‧‧‧螺旋套管3‧‧‧Spiral casing

4‧‧‧螺旋接頭液體導入口4‧‧‧ screw joint liquid inlet

9‧‧‧螺旋套管活動螺帽9‧‧‧Screw casing movable nut

11‧‧‧螺旋套管液體導出口11‧‧‧ Spiral casing liquid outlet

12‧‧‧金屬細蕊12‧‧‧Metal fine core

13‧‧‧固定片13‧‧‧Fixed film

Claims (9)

Translated fromChinese

一種滴注速率調整裝置，包括：一螺旋接頭，其一端為液體導入口用以銜接導管以導入欲調整流速之液體，另一端為液體導出口，用以接合螺旋套管；一螺旋套管，其一端為活動螺帽，用以接合螺旋接頭，另一端為液體導出口用以銜接導管導出調整流速後之液體。 A drip rate adjustment device includes: a screw joint, one end of which is a liquid introduction port for connecting a conduit to introduce a liquid whose flow rate is to be adjusted, and the other end is a liquid introduction port for engaging a spiral sleeve; a spiral sleeve, One end is a movable nut, which is used to join the screw joint, and the other end is a liquid outlet, which is used to connect the catheter to lead out the liquid with the adjusted flow rate. 根據申請專利範圍第1項之滴注速率調整裝置，其進一步包括該一螺旋接頭液體導出口外壁設有螺牙用以接合螺旋套管。 According to the drip rate adjusting device of item 1 of the patent application scope, it further includes a screw thread on the outer wall of the liquid outlet of the screw joint for engaging the spiral sleeve. 根據申請專利範圍第1項之滴注速率調整裝置，其進一步包括該一螺旋接頭液體導出口內嵌一金屬毛細管平行於軸心，金屬毛細管於液體導出口向外延伸一所需長度。 According to the drip rate adjusting device of item 1 of the patent application scope, it further includes a metal capillary embedded in the liquid outlet of the screw joint parallel to the axis, and the metal capillary extends a required length outward from the liquid outlet. 根據申請專利範圍第3項之滴注速率調整裝置，其進一步包括該一金屬毛細管液體導出口端外壁設有一止水橡膠圈，當螺旋接頭與螺旋套管接合後，此止水橡膠圈將與螺旋套管液體導入口內壁迫緊，避免液體洩漏。 The drip rate adjusting device according to item 3 of the patent application scope further includes a water stop rubber ring on the outer wall of the liquid outlet end of the metal capillary. When the screw joint and the screw sleeve are engaged, the water stop rubber ring will The inner wall of the liquid inlet of the spiral sleeve is tight to avoid liquid leakage. 根據申請專利範圍第1項之滴注速率調整裝置，其進一步包括該一螺旋套管液體導入口外壁設有一活動螺帽，活動螺帽與螺旋套管液體導入口以C形彈性卡榫連接。 According to the drip rate adjusting device of item 1 of the patent application scope, it further includes a movable nut on the outer wall of the liquid inlet of the spiral sleeve. The movable nut is connected with the liquid inlet of the spiral sleeve by a C-shaped elastic tenon. 根據申請專利範圍第5項之滴注速率調整裝置，其中該活動螺帽內壁有螺牙用以接合螺旋接頭液體導出口外壁螺牙，當改變活動螺帽旋入螺旋接頭液體導出口外壁螺牙之圈數，便可帶動螺旋套管內嵌之金屬細蕊調整插入螺旋接頭內嵌之金屬毛細管中之深度。 The drip rate adjustment device according to item 5 of the patent application scope, wherein the inner wall of the movable nut has a screw thread for engaging the screw thread of the outer wall of the screw joint liquid outlet, when the movable nut is screwed into the outer wall screw of the screw joint liquid outlet The number of teeth turns can drive the fine metal core embedded in the spiral sleeve to adjust the depth of insertion into the metal capillary embedded in the spiral joint. 根據申請專利範圍第1項滴注速率調整裝置，其進一步包括該一螺旋套管液體導出口軸心內嵌一金屬細蕊，金屬細蕊以固定片固定於於螺旋套管液體導出口內壁，金屬細蕊於固定處向螺旋套管液體導入口平行延伸一足夠長度，當螺旋接頭與螺旋套管接合時，金屬細蕊將可平行插入螺旋接頭內嵌之金屬毛細管中形成一環形柱狀通道。 According to the first drip rate adjusting device of the patent application scope, it further includes a metal thin core embedded in the axis of the spiral sleeve liquid outlet, the metal fine core is fixed to the inner wall of the spiral sleeve liquid outlet with a fixing piece , The metal fine core extends a sufficient length parallel to the liquid inlet of the spiral sleeve at the fixed place. When the spiral joint is joined with the spiral sleeve, the metal fine core can be inserted into the metal capillary embedded in the spiral joint in parallel to form an annular column shape aisle. 根據申請專利範圍第7項滴注速率調整裝置，其進一步包括該一金屬細蕊之固定片於螺旋套管液體導入方向端有一金屬細蕊止水橡膠圈，當螺旋接頭之活動螺帽旋至極限時，金屬細蕊止水橡膠圈將阻擋金屬毛細管液體導出口使液體停止流出。 According to the seventh drip rate adjustment device of the patent application scope, it further includes that the fixing piece of a metal fine core has a metal fine core water stop rubber ring at the end of the spiral sleeve liquid introduction direction, when the movable nut of the spiral joint is turned to the extreme In a limited time, the metal fine core water stop rubber ring will block the metal capillary liquid outlet and stop the liquid from flowing out. 根據申請專利範圍第7項滴注速率調整裝置，其進一步包括該一金屬細蕊外徑必須小於螺旋接頭內嵌之金屬毛細管之內徑，以形成一可調整長度之環形柱狀通道。 According to the seventh drip rate adjustment device of the patent application scope, it further includes that the outer diameter of the metal fine core must be smaller than the inner diameter of the metal capillary embedded in the screw joint to form an adjustable length annular cylindrical channel.

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