CN103920210A - Flow controller for intravenous infusion - Google Patents
Flow controller for intravenous infusion Download PDFInfo
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- CN103920210A CN103920210A CN201410176670.9A CN201410176670A CN103920210A CN 103920210 A CN103920210 A CN 103920210A CN 201410176670 A CN201410176670 A CN 201410176670A CN 103920210 A CN103920210 A CN 103920210A
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- left clamp
- hose
- infrared sensing
- clamp body
- clamping body
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Abstract
The invention discloses a flow controller for intravenous infusion. The flow controller for intravenous infusion comprises a pliers body. The pliers body comprises two half pieces which are hinged together. The portions, on the rear side of the hinge point, of the two half pieces are used as hand-operated clamping handles. The portions, on the front side of the hinge point, of the two half pieces form a right clamp body and a left clamp body. The middle portion of the left clamp body and the middle portion of the right clamp body are symmetrically provided with arc-shaped grooves which define an infusion set hose clamping cavity. The position, on one side of the infusion set hose clamping cavity, of the left clamp body or the right clamp body is provided with an infrared sensing emitter, and the position, on the other side of the infusion set hose clamping cavity, of the right clamp body or the left clamp body is provided with an infrared sensing receiver. An electric control unit and a setting and displaying module are arranged on the left clamp body or the right clamp body. The electric control unit is connected with the setting and displaying module, the infrared sensing emitter and the infrared sensing receiver respectively. The flow controller for intravenous infusion can accurately display the flow rate in the infusion set hose, and has the two functions of manually and automatically adjusting the flow rate in the infusion set hose; no mechanical adjustment in the manual and automatic switching process is needed, so the flow controller for intravenous infusion is very convenient to use.
Description
Technical field
The present invention relates to technical field of medical instruments, relate in particular to detection and the control of fluid flow in intravenous injection process.
Background technology
Intravenous injection (water delivery, have an intravenous drip) is the more common Therapeutic Method of hospital, liquid medicine flows into the flow (flow refers to the liquid dose of unit interval injection human body) in venous patient, need to be along with the difference of the difference of each human body situation and medicine is adjusted, therefore flow-control seems extremely important.The adjustment of the flow of therapeutic process medium-sized vein injection is at present estimated adjustment by medical personnel substantially, in water delivery process, once patient has abnormal or bad reflection; need to adjust in time flow; in the time that transfusion closes to an end, patient's manual calling nurse changes dressings in time or stops transfusion, and process is more loaded down with trivial details.In addition, adjust flow by artificial visually examine, error is larger, is difficult to accurately control flow.
Summary of the invention
The object of the present invention is to provide a kind of intravenous injection flow controller that can control easily and accurately liquid dose in intravenous injection process.
For achieving the above object, intravenous injection flow controller of the present invention comprises caliper, caliper comprises hinged two halves slit bamboo or chopped wood, the two halves slit bamboo or chopped wood of pin joint rear side is as hand-operated clamping handle for user hand-held, and the two halves slit bamboo or chopped wood of pin joint front side forms right clamping body and left clamp and for clamping hose of infusion apparatus;
The middle part of left and right clamp is arranged with arcuate groove, and the arcuate groove on left and right clamp is oppositely arranged and surrounds hose of infusion apparatus clamping chamber; Left clamp or the right clamping body of hose of infusion apparatus clamping chamber one side are provided with infrared sensing emitter, be provided with infrared sensing receptor corresponding with infrared sensing emitter on the right clamping body of hose of infusion apparatus clamping chamber opposite side or left clamp;
Left clamp or right clamping body are provided with electric control gear and display module are set, and electric control gear connects respectively described display module, infrared sensing emitter and the infrared sensing receptor of arranging.
The corresponding through hole that is provided with up/down perforation on the left clamp at hose of infusion apparatus clamping rear, chamber and right clamping body,
On left clamp or right clamping body, be provided with miniature clockwise and anticlockwise motor in through hole, miniature clockwise and anticlockwise motor is connected with leading screw by shaft coupling transmission, and leading screw stretches out right clamping body or left clamp along through hole; On right clamping body or left clamp, be fixedly connected with locating piece in lead to the hole site place, spherical bearing is installed on locating piece, slidably connect nut in spherical bearing, nut thread is connected on described leading screw; In spherical bearing, be provided with spring top bead, spring top bead and the crimping of described nut outer surface phase;
Rotation friction when force of sliding friction between the decorative pearl on top of an official cap and nut is greater than leading screw and rotates in nut and between nut.
The front central of described left clamp and right clamping body surrounds horn-like inlet pipe mouth, and horn-like inlet pipe mouth is connected with hose of infusion apparatus clamping chamber.
Described electric control gear is PLC or single-chip microcomputer or integrated circuit.
The present invention can accurately show the flow in hose of infusion apparatus, avoid the error of user range estimation, make the adjusting of the flow in hose of infusion apparatus more accurate, make the speed dosage in infusion of medicine human body more there is science, but also facilitate medical worker and patient and entourage's operation, very convenient and safety.The present invention has the two kinds of functions of flow in flow and the automatic regulating transfusion device flexible pipe in manual adjustments hose of infusion apparatus.
Automatic adjusting mechanism (leading screw, nut, spherical bearing etc.) does not hinder manual adjustments process, and manual adjustments can be switched at any time mutually with automatic adjusting, need not carry out any adjustment of mechanical aspects when switching, very convenient.In addition, the present invention is simple in structure, be convenient to manufacture and use, and cost is lower.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 be spring top bead match with nut place enlarged diagram.
Detailed description of the invention
In the present invention, taking horn-like inlet pipe mouth one end as forward direction, oppositely (hand-operated clamping handle one end) is backward.
As depicted in figs. 1 and 2, intravenous injection flow controller of the present invention comprises caliper, caliper comprises hinged two halves slit bamboo or chopped wood, the two halves slit bamboo or chopped wood of pin joint rear side is as hand-operated clamping handle 13 for user hand-held, and the two halves slit bamboo or chopped wood of pin joint front side forms right clamping body 1 and left clamp 6 and for clamping hose of infusion apparatus.
The middle part of left and right clamp 6,1 is arranged with arcuate groove, and the arcuate groove on left and right clamp 6,1 is oppositely arranged and surrounds hose of infusion apparatus clamping chamber 12; Left clamp 6 or the right clamping body 1 of hose of infusion apparatus clamping chamber 12 1 sides are provided with infrared sensing emitter 2, be provided with infrared sensing receptor 10 corresponding with infrared sensing emitter 2 on the right clamping body 1 of hose of infusion apparatus clamping chamber 12 opposite sides or left clamp 6;
Left clamp 6 or right clamping body 1 are provided with electric control gear (electric control gear is prior art, and figure does not show) and display module 11 are set, and electric control gear connects respectively described display module 11, infrared sensing emitter 2 and the infrared sensing receptor 10 of arranging.
The corresponding through hole 14 that is provided with up/down perforation on the left clamp 6 at hose of infusion apparatus clamping 12 rears, chamber and right clamping body 1, on left clamp 6 or right clamping body 1, (Figure 1 shows that on right clamping body 1) in through hole 14 places and be provided with miniature clockwise and anticlockwise motor 3, the main shaft of miniature clockwise and anticlockwise motor 3 is connected with leading screw 4 by shaft coupling 15, and leading screw 4 stretches out right clamping body 1 or left clamp 6 along through hole 14; On right clamping body 1 or left clamp 6, be fixedly connected with locating piece 16 in through hole 14 positions, spherical bearing 7 is installed on locating piece 16, slidably connect nut 8 in spherical bearing 7, nut 8 is threaded on described leading screw 4; In spherical bearing 7, be provided with spring top bead 9, spring top bead 9 and described nut 8 outer surface phase crimping.
Nut 8 outer surfaces are pressed on spring top bead 9 top, the rotation friction when force of sliding friction between the decorative pearl on top of an official cap and nut 8 is greater than leading screw 4 and rotates in nut 8 and between nut 8.
The front central of described left clamp 6 and right clamping body 1 surrounds horn-like inlet pipe mouth 17, and horn-like inlet pipe mouth 17 is connected with hose of infusion apparatus clamping chamber 12.Thereby more easily hose of infusion apparatus is put into hose of infusion apparatus clamping chamber 12 by horn-like inlet pipe mouth 17 in use.Described electric control gear is PLC or single-chip microcomputer or integrated circuit.
Described miniature clockwise and anticlockwise motor 3, spring top bead 9, electric control gear, display module 11, infrared sensing emitter 2 and infrared sensing receptor 10 are set are prior art, its concrete structure no longer describes in detail.
In shown in Fig. 1, infrared sensing emitter 2 and miniature clockwise and anticlockwise motor 3 are arranged on right clamping body 1, and spring top bead 9 is arranged on left clamp 6 by locating piece 16, display module 11 and infrared sensing receptor 10 are set and are also arranged on left clamp 6.
When use, operator (medical personnel or patient) clamps hand-operated clamping handle 13 with hands, make left and right clamp 6,1 open, drive leading screw 4 away from spherical bearing 7, cause now miniature clockwise and anticlockwise motor 3 does not drive leading screw 4 rotation, therefore can not there is not relative motion with nut 8 because of rotation in leading screw 4, but overcome the frictional force between spring top bead 9 and nut 8 and drive nut 8 to move with leading screw 4 and right clamping body 1, now nut 8 outer rims are slided in spherical bearing 7 inner rings, thereby the horn-like inlet pipe mouth 17 of left and right clamp 6,1 is opened.After horn-like inlet pipe mouth 17 opens, transparent hose of infusion apparatus can be clamped in the hose of infusion apparatus clamping chamber 12 between left and right clamp 6,1.Then operator manually compresses left and right cramping body (because leading screw 4 does not rotate, therefore leading screw 4 still drives nut 8 together to move axially), completes the clamping to hose of infusion apparatus.
After clamping hose of infusion apparatus has moved, opening power, arranges flow by display module 11 is set.Electric control gear receives the distance signal that infrared sensing receptor 10 sends, and (when hose of infusion apparatus clamping chamber 12 is more than or equal to the cross section of hose of infusion apparatus, flow is 100% to be converted into flow in hose of infusion apparatus; After left and right clamp 6,1 clamps, hose of infusion apparatus clamping chamber 12 dwindles, thereby compression hose of infusion apparatus diminishes the fluid flow in it.Those skilled in the art have the ability by testing the relation between open degree distance signal and the flow that draws voluntarily the given left and right clamp of infrared sensing receptor 10 6,1, and be preset in electric control gear, the distance signal that electric control gear can be sent according to infrared sensing receptor 10 calculates the flow in hose of infusion apparatus).The size of the actual flow value after the flow value that electric control gear is relatively set and its conversion, thereby miniature clockwise and anticlockwise motor 3 forward or reverse of corresponding control, make leading screw 4 in the interior rotation of nut 8, thereby make left and right clamp 6,1 close to each other or away from, the flat degree that final regulating transfusion device flexible pipe is pressed, makes actual flow value equate with setting flow value.Reach the automatic control to fluid flow size.In this process, drive leading screw 4 to rotate by miniature clockwise and anticlockwise motor 3, can not overcome the frictional force of nut 8 under the pressure on top surface effect of spring top bead 9, nut 8 can not rotate and can not axially move, leading screw 4 can only rotate in nut 8, make leading screw 4 and nut 8 have displacement to axial, thereby automatically regulate the opening degree of left and right clamp 6,1, thereby realize the automatic control to fluid flow size.
Display module 11 is set and in use shows uninterrupted in good time, very easy to use.Electric control gear can also be controlled and coordinate display module and drip off alarm at liquid, very safe.
Claims (4)
1. intravenous injection flow controller, it is characterized in that: comprise caliper, caliper comprises hinged two halves slit bamboo or chopped wood, the two halves slit bamboo or chopped wood of pin joint rear side is as hand-operated clamping handle for user hand-held, and the two halves slit bamboo or chopped wood of pin joint front side forms right clamping body and left clamp and for clamping hose of infusion apparatus;
The middle part of left and right clamp is arranged with arcuate groove, and the arcuate groove on left and right clamp is oppositely arranged and surrounds hose of infusion apparatus clamping chamber; Left clamp or the right clamping body of hose of infusion apparatus clamping chamber one side are provided with infrared sensing emitter, be provided with infrared sensing receptor corresponding with infrared sensing emitter on the right clamping body of hose of infusion apparatus clamping chamber opposite side or left clamp;
Left clamp or right clamping body are provided with electric control gear and display module are set, and electric control gear connects respectively described display module, infrared sensing emitter and the infrared sensing receptor of arranging.
2. intravenous injection flow controller according to claim 1, is characterized in that: the corresponding through hole that is provided with up/down perforation on the left clamp at hose of infusion apparatus clamping rear, chamber and right clamping body,
On left clamp or right clamping body, be provided with miniature clockwise and anticlockwise motor in through hole, miniature clockwise and anticlockwise motor is connected with leading screw by shaft coupling transmission, and leading screw stretches out right clamping body or left clamp along through hole; On right clamping body or left clamp, be fixedly connected with locating piece in lead to the hole site place, spherical bearing is installed on locating piece, slidably connect nut in spherical bearing, nut thread is connected on described leading screw; In spherical bearing, be provided with spring top bead, spring top bead and the crimping of described nut outer surface phase;
Rotation friction when force of sliding friction between the decorative pearl on top of an official cap and nut is greater than leading screw and rotates in nut and between nut.
3. intravenous injection flow controller according to claim 1 and 2, is characterized in that: the front central of described left clamp and right clamping body surrounds horn-like inlet pipe mouth, and horn-like inlet pipe mouth is connected with hose of infusion apparatus clamping chamber.
4. intravenous injection flow controller according to claim 3, is characterized in that: described electric control gear is PLC or single-chip microcomputer or integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176670.9A CN103920210B (en) | 2014-04-29 | 2014-04-29 | Intravenous injection flow controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176670.9A CN103920210B (en) | 2014-04-29 | 2014-04-29 | Intravenous injection flow controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103920210A true CN103920210A (en) | 2014-07-16 |
| CN103920210B CN103920210B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410176670.9A Expired - Fee Related CN103920210B (en) | 2014-04-29 | 2014-04-29 | Intravenous injection flow controller |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5166667A (en) * | 1990-11-29 | 1992-11-24 | Jen Chung H | Intravenous infusion counter and alarm apparatus |
| US6337631B1 (en) * | 2001-03-12 | 2002-01-08 | Min-Fang Pai | Automatic infusion-monitoring instrument |
| JP2012024528A (en) * | 2010-07-20 | 2012-02-09 | Katsunori Inoue | Monitoring system of drip injection and the like |
| CN202761823U (en) * | 2012-09-03 | 2013-03-06 | 湖州市中心医院 | Intravenous drip speed detector |
| CN202942495U (en) * | 2012-11-21 | 2013-05-22 | 龚伟 | Automatic drip controller |
| CN203169729U (en) * | 2012-12-10 | 2013-09-04 | 吴法兴 | Liquid interruption alerter of infusion device |
| CN103566426A (en) * | 2012-07-26 | 2014-02-12 | 方明 | Automatic reminding device after total dripping of medical transfusion liquid |
| CN203447581U (en) * | 2013-08-22 | 2014-02-26 | 吴子俊 | Infusion alarm |
| CN203829418U (en) * | 2014-04-29 | 2014-09-17 | 黄河科技学院 | Intravenous injection flow controller |
-
2014
- 2014-04-29 CN CN201410176670.9A patent/CN103920210B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5166667A (en) * | 1990-11-29 | 1992-11-24 | Jen Chung H | Intravenous infusion counter and alarm apparatus |
| US6337631B1 (en) * | 2001-03-12 | 2002-01-08 | Min-Fang Pai | Automatic infusion-monitoring instrument |
| JP2012024528A (en) * | 2010-07-20 | 2012-02-09 | Katsunori Inoue | Monitoring system of drip injection and the like |
| CN103566426A (en) * | 2012-07-26 | 2014-02-12 | 方明 | Automatic reminding device after total dripping of medical transfusion liquid |
| CN202761823U (en) * | 2012-09-03 | 2013-03-06 | 湖州市中心医院 | Intravenous drip speed detector |
| CN202942495U (en) * | 2012-11-21 | 2013-05-22 | 龚伟 | Automatic drip controller |
| CN203169729U (en) * | 2012-12-10 | 2013-09-04 | 吴法兴 | Liquid interruption alerter of infusion device |
| CN203447581U (en) * | 2013-08-22 | 2014-02-26 | 吴子俊 | Infusion alarm |
| CN203829418U (en) * | 2014-04-29 | 2014-09-17 | 黄河科技学院 | Intravenous injection flow controller |
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| Publication number | Publication date |
|---|---|
| CN103920210B (en) | 2015-09-23 |
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Granted publication date: 20150923 Termination date: 20160429 |