CN102526832A - Micro motor driving device of blood transfusion and fluid transfusion pump - Google Patents
Micro motor driving device of blood transfusion and fluid transfusion pump Download PDFInfo
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- CN102526832A CN102526832A CN2012100479229A CN201210047922A CN102526832A CN 102526832 A CN102526832 A CN 102526832A CN 2012100479229 A CN2012100479229 A CN 2012100479229A CN 201210047922 A CN201210047922 A CN 201210047922A CN 102526832 A CN102526832 A CN 102526832A
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Abstract
The invention discloses a micro motor driving device of a blood transfusion and fluid transfusion pump. The micro motor driving device comprises a speed-reducing micro motor, an oscillating extruding mechanism, an eccentric wheel, a radial bearing and a fixing plate, wherein the speed-reducing micro motor is connected with the eccentric wheel through a motor shaft; the eccentric wheel is connected with the oscillating extruding mechanism through the radial bearing; the end part of the motor shaft is arranged in a front bracket through a first bearing; the middle of the fixing plate projects upwards, so that a projecting cavity is formed; the oscillating extruding mechanism comprises a shifting fork, an extruding frame and a connecting shaft; the upper part of the shifting fork extends into the projecting cavity in the middle of the fixing plate, and is fixedly connected with the connecting shaft; the lower part of the shifting fork is provided with a U-shaped gap; the radial bearing is arranged in the U-shaped gap of the shifting fork; the shifting fork oscillates leftwards and rightwards along with the radial bearing; the connecting shaft is supported on the fixing plate through a shaft sleeve; and the front and back ends of the connecting shaft extend out of the projecting cavity respectively, and are fixedly connected with the extruding frame. The device has the advantages of simple structure, convenience for assembling, low energy consumption, dust prevention, waterproofness and high stability.
Description
Technical field
The present invention relates to a kind of micro motor infusion pump technology.
Background technology
Intravenous transfusion is a kind of the most frequently used clinical treatment method.For wound such as gunshot wound, puncture wound, burn and lose blood, the dehydration property shock patient, the controlled rapid fluid replacement of pre hospital care is a very important emergency measures.
Be used for the controlled quick infusion device that pre hospital care, battlefield use, it is little, in light weight and can pass through characteristics such as battery powered to possess volume usually.The micro machine driving device is as the ingredient of intravenous transfusion, also must satisfy requirements such as little, the in light weight and energy consumption of volume is low.Swing pressing mechanism suffered resistance in swing extrusion process is the most important factor that influences infusion device energy consumption height; The problem of frequent change battery in the first aid process must reduce to swing pressing mechanism suffered resistance in swing extrusion process.In addition; Infusion pump as pre hospital care, battlefield use; The general work environment is more abominable, if the micro machine driving device is dustproof, water proofing property and stable bad, is easy to cause infusion pump normally to use; Have a strong impact on timely treatment, so that the micro machine driving device also must possess preferably is dustproof, water proofing property and advantages of higher stability to patient.
For example; In the patent documentation of State Intellectual Property Office of the People's Republic of China's issue, put down in writing " micro motor infusion pump "; Publication number is CN101745155A, in this patent, has following problem: 1, swing extrusion head top is installed in the intermediary gathering sill of fixing head, and gathering sill does not seal; When micro motor infusion pump is worked, can not satisfy requirement dustproof, water proofing property preferably in adverse circumstances; 2, the contact area of swing extrusion head and gathering sill is bigger, makes swing extrusion head suffered resistance in swinging extrusion process bigger, and the micro machine driving device can not satisfy the requirement of low energy consumption preferably.
Summary of the invention
The present invention proposes a kind of micro machine driving device of infusion pump; It is simple in structure; Be convenient to assembling, energy consumption is low, has better waterproof and stability; This micro machine drives pressurizing unit and infusion board assembly, air elimination diaphragm, check valve double pump and impedance transducer are used; Functions such as the automatic fitration that realizes bubble and obstruction and warning, can reach be convenient for carrying, blood transfusion and infusion and omnidistance observing and controlling fast, for giving treatment to the IV blood transfusion and infusion that the conformance with standard that provides accurate, safe and reliable is stipulated in pre hospital care, field, battlefield.
In order to realize the foregoing invention purpose, the present invention adopts following technical scheme:
A kind of micro machine driving device of infusion pump of infusion pump comprises deceleration micro machine, swing pressing mechanism, eccentric, radial bearing and fixing head;
Said deceleration micro machine connects eccentric through motor shaft, and eccentric is connected with the swing pressing mechanism through radial bearing, and the end of motor shaft is installed in the fore-stock through clutch shaft bearing;
The centre of the said fixing head projection that makes progress forms a protruding cavity;
Said swing pressing mechanism comprises shift fork, extruding frame and coupling spindle; Said shift fork top is stretched in the intermediary protruding cavity of fixing head and is fixedly connected with coupling spindle; The shift fork bottom is provided with the U-shaped breach, and radial bearing is arranged in the U-shaped breach of this shift fork, and shift fork swings with radial bearing; Coupling spindle is supported on the fixing head through clamping down at the anti-wear sleeve on the fixing head, and the front and back end of coupling spindle extends to respectively, and protruding cavity is outer to be fixedly connected with the extruding frame.
Said shift fork top is provided with the shift fork upper mounted plate; The inclined-plane, top of this shift fork upper mounted plate is the low inverted V-shaped structures in middle high two ends; The center bottom of shift fork upper mounted plate has and the corresponding breach of coupling spindle shape; Said coupling spindle snaps in this breach, and the gap of trace is arranged between upper mounted plate and the shift fork, and is fixedly connected with the shift fork upper mounted plate through the shift fork fixed screw.
The below, front and back end of said coupling spindle is respectively equipped with down lockplate, and the front and back end of coupling spindle is installed in down respectively between lockplate and the extruding frame, and fastening through lock screw, is convenient to installation and removal.
Said extruding frame is positioned at the below of the first pump line A and the second pump line B on the infusion board of infusion pump; And push the lower wall of the left and right sides edge of frame, and when shift fork is swung, alternately swing up and down extruding first pump line or second pump line over against first pump line and second pump line.
The junction of said coupling spindle and fixing head intermediate projections cavity is respectively equipped with sealing ring.Good airproof performance has waterproof and dustproof function preferably.
Said eccentric is fixedly connected with radial bearing through snap ring.
Said eccentric and motor shaft are through annotating spiral shell or key connecting.
Said deceleration micro machine is through low-voltage power supply socket or the battery powered in the battery case that be arranged on bottom of shell of control circuit board through being arranged on the JIKE outside.
Beneficial effect of the present invention: it is simple in structure; Good manufacturability; Be convenient to assembling, energy consumption is low, and has waterproof and dustproof function preferably; Check valve double pump pipe, air elimination diaphragm and impedance transducer that this micro machine drives pressurizing unit and infusion board are used; Can realize the functions such as automatic fitration and warning of bubble and obstruction, reach be convenient for carrying, blood transfusion and infusion and omnidistance observing and controlling fast, the IV blood transfusion and infusion of accurate, safe and reliable conformance with standard regulation is provided for pre hospital care, field, battlefield treatment.
Description of drawings
Fig. 1 is an analysis diagram of the present invention;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is A-A profile of Fig. 2;
Fig. 4 is the use sketch map of the present invention at infusion pump;
Fig. 5 is the pump housing and the air elimination diaphragm structural representation of infusion board in the infusion pump;
Fig. 6 is the structural representation of the air elimination diaphragm in the infusion pump;
Fig. 7 is the B-B profile of Fig. 6;
Fig. 8 is the liquid road schematic diagram of infusion pump.
The specific embodiment
Further specify structure of the present invention and operation principle below in conjunction with accompanying drawing:
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4; The micro machine driving device of infusion pump comprise locking spring 1, locker 2, extruding frame 3, lock screw 4, coupling spindle 5, sealing ring 6, down lockplate 7, lock alignment pin 8, fixing head 9, deceleration micro machine 10, eccentric 11, annotate spiral shell 12, radial bearing 13, shift fork upper mounted plate 14, shift fork 15, shift fork fixed screw 16, snap ring 17, clutch shaft bearing 18, fore-stock 19, fore-stock fixed screw 20 etc., they are installed in the housing that is made up of JIKE 28 and fixing head 9.
Fixing head 9 is fixed on the JIKE 28, on fixing head 9, clamps infusion board assembly 21 through lock 2.Deceleration micro machine 10 connects eccentric 11 through motor shaft, and eccentric 11 also can be through annotating spiral shell, plane or key connecting with motor shaft.Annotate spiral shell 12 lockings; Eccentric 11 is connected with radial bearing 13 through snap ring 17; Radial bearing 13 is connected with the swing pressing mechanism, and the end of motor shaft is installed in the fore-stock 19 through clutch shaft bearing 18, and fore-stock 19 is fixed on the JIKE 28 by fore-stock fixed screw 20; JIKE 28 is provided with speed change knob 27, is electrically connected with control circuit board 23, and control circuit board 23 connects deceleration micro machine 10 through control signal wire.The centre of fixing head 9 projection that makes progress forms a protruding cavity 9-1, and its upper center is designed with the anti-wear sleeve 9-2 that coupling spindle 5 is installed.
The swing pressing mechanism comprises shift fork 15, extruding frame 3 and coupling spindle 5; Shift fork 15 tops are stretched in the fixing head 9 intermediary protruding cavity 9-1 and are fixedly connected with coupling spindle 5; Shift fork 15 tops are provided with shift fork upper mounted plate 14; The inclined-plane, top of this shift fork upper mounted plate 14 is the low inverted V-shaped structures in middle high two ends; The center bottom of shift fork upper mounted plate 14 has that corresponding little coupling spindle 5 snaps in this breach greater than semicircular inverted U-shaped breach with coupling spindle 5 shapes, and is fixedly connected with shift fork 15, shift fork upper mounted plate 14 through shift fork fixed screw 16.Shift fork 15 bottoms are provided with the U-shaped breach; Radial bearing 13 is arranged in the U-shaped breach of this shift fork 15; Shift fork 15 swings with radial bearing 13; Coupling spindle is supported on the fixing head through clamping down at the anti-wear sleeve 9-2 on the fixing head, and in the outside, junction of coupling spindle 5 and fixing head 9 intermediate projections cavity 9-1 sealing ring 6 is installed.The front and back end of coupling spindle 5 extends to respectively outside the fixing head 9 intermediary protruding cavity 9-1 and is fixedly connected with extruding frame 3 front and back edges; For the ease of installing; Below coupling spindle 5 front and back ends, be designed to mill the plane of semicircle respectively; Coupling spindle 5 front and back ends are installed in down respectively between lockplate 7 and the extruding frame 3, and leave the clamping gap of trace, and are fastening through lock screw 4.Extruding frame 3 is positioned at the first pump line 214A and the below of the second pump line 214B on the infusion board 21; And push the lower wall of the left and right sides edge of frame 3, and when shift fork 15 swings, alternately swing up and down the extruding first pump line 214A or the second pump line 214B over against the first pump line 214A and the second pump line 214B.
Under the control of speed change knob 27 and control circuit board 23; Micro machine 10 rotating band movable eccentric wheels 11, radial bearing 13 rotate; Radial bearing 13 drives shift fork 15 and swings, and shift fork 15 drives coupling spindle 5 left rotation and right rotation around moving, and coupling spindle 5 drives extruding frame 3 left rotation and right rotation around moving; Make the first pump line 214A or second pump line 214B generation extruding action on extruding frame 3 and the infusion board 21, output liquid.
Referring to Fig. 5, infusion board assembly 21 is by four check valves, 212A, 212B, 212C, 212D, and two elastic pump tubes, 214A, 214B, air elimination diaphragm 215 and impedance probe 2157,2158 are integrated in blood transfusion and infusion substrate 21l and go up and constitute.Blood transfusion and infusion substrate 21l adopts medical ABS material press mold to process; The liquid inlet channel 217 and tapping channel 219 that is parallel to each other arranged at its two ends; The inlet 218 that connects the blood transfusion and infusion bag is arranged on the liquid inlet channel 217, and tapping channel 219 is communicated with the feed pathway 2154 of air elimination diaphragm 215.Two ends at liquid inlet channel 217 and tapping channel 219 are connected the first parallel pump line 214A and the second pump line 214B through pump pipe union 213 respectively; And the first check valve 212A, the second check valve 212B, the 3rd check valve 212C and the 4th check valve 212D are set in pump pipe union 213 respectively, all check valves are all towards the unidirectional unlatching of fluid direction.Blood transfusion and infusion substrate 21l adopts the ABS material, and pump line, check valve adopt APSPG silica gel.
Referring to Fig. 6 and Fig. 7; Air elimination diaphragm 215 is integrated on the blood transfusion and infusion substrate 21l, and as diaphragm lower body 2155, diaphragm upper body 215l adopts another piece ABS plate with blood transfusion and infusion substrate 21l; Both ultrasonic bonds are connected into a cavity; And hydrophilic air barrier sheet 2152 is set in the centre, and cavity is divided into two chambeies up and down, be provided with the hole 2156 of cooling down of band aerofluxus diaphragm 2153 in the bottom of cavity of resorption; On the epicoele wall, be formed with simultaneously miniature triangular form groove 2159, form the capillary tube air and eliminate array liquid road.Feed pathway 2154 inserts from following sap cavity 21510, and liquid outlet 216 is picked out by epicoele.First and second impedance detecting electrodes 2157 and 2158 of impedance probe are arranged on liquid outlet 216 places.
This infusion pump is provided with two kinds of power mode; A kind of is through being arranged on the low-voltage power supply socket 22 in JIKE 28 outsides; Connect civil power through adapter, another kind is through being arranged on the battery 26 and battery case 25 in the JIKE 28 bottom lower casings 24, battery 26 power supplies being arranged.
The occupation mode of this infusion pump is referring to Fig. 8:
Before blood transfusion and infusion; Blood transfusion and infusion bag 29 or bottle are connected with the inlet 218 of infusion board assembly 21 through blood transfusion and infusion pipe 30; Liquid outlet on the air elimination diaphragm 215 216 is connected with the blood transfusion and infusion pin through standard Luser adapter 31; The extruding or raise blood transfusion and infusion bag 29, the first check valve 212A, the second check valve 212B, the 3rd check valve 212C and the 4th check valve 212D are opened, the whole pipe flow path system is full of infusion liquid.
When deceleration micro machine 10 drove swing pressing mechanism elasticity of compression pump line 214A, the first check valve 212A opened, and second to the four check valve 212B, 212c and 212D close, and the flow of liquid that is full of the first pump line 214A is exported after air elimination diaphragm 215; Otherwise when deceleration micro machine 10 driving swing pressing mechanisms compressed the second pump line 214B, the 4th check valve 212D opened, and first to the three check valve 212A, 212B, 212c close, and the flow of liquid that is full of the second pump line 214B is exported after air elimination diaphragm 215.Swing pressing mechanism swing alternate compression first and two pump line 214A and 214B will form the liquid infusion continuously with certain pressure at standard Luser adapter 31 delivery outlets like this and give patient, are similar to the continuous operation principle of atrial ventricle.The flap of check valve can stop anti-stream.
In infusion process, when impedance probe has detected bubble, obstruction generation, will signal be transferred to control circuit board 23, control circuit board 23 is promptly controlled reducing motor 10 and is quit work immediately, and system also can send sound and light alarm.
In first aid, work as the blood transfusion and infusion bag and drop to the ground, or occur flowing backwards, a large amount of air can get into pipeline.But check valve, air elimination diaphragm that this infusion board has been arranged just this situation can not occur.Even if there are some air can be excluded, can not enter into the pipeline of patient's one side at all yet.Simultaneously impedance probe is provided with diaphragm-operated liquid outlet place, promptly in the patient-side pipeline, to meet the standard of zero tolerance.
Claims (8)
1. the micro machine driving device of an infusion pump is characterized in that: comprise deceleration micro machine (10), swing pressing mechanism, eccentric (11), radial bearing (13) and fixing head (9);
Said deceleration micro machine connects eccentric through motor shaft, and eccentric is connected with the swing pressing mechanism through radial bearing, and the end of motor shaft is installed in the fore-stock (19) through clutch shaft bearing (18);
The centre of the said fixing head projection that makes progress forms a protruding cavity (9-1);
Said swing pressing mechanism comprises shift fork (15), extruding frame (3) and coupling spindle (5); Said shift fork top is stretched in the intermediary protruding cavity of fixing head (9-1) and is fixedly connected with coupling spindle; The shift fork bottom is provided with the U-shaped breach, and radial bearing is arranged in the U-shaped breach of this shift fork, and shift fork swings with radial bearing; Coupling spindle is supported on the fixing head through axle sleeve (9-2), and the front and back end of coupling spindle extends to respectively, and protruding cavity is outer to be fixedly connected with the extruding frame.
2. according to the micro machine driving device of the described infusion pump of claim l; It is characterized in that: said shift fork (15) top is provided with shift fork upper mounted plate (14); The inclined-plane, top of this shift fork upper mounted plate is the low inverted V-shaped structures in middle high two ends; The center bottom of shift fork upper mounted plate has and the corresponding breach of coupling spindle (5) shape, and said coupling spindle snaps in this breach, and is fixedly connected with shift fork through shift fork fixed screw (16).
3. the micro machine driving device of infusion pump according to claim 2; It is characterized in that: below, said coupling spindle (5) front and back end is respectively equipped with down lockplate (7); Coupling spindle (5) front and back end is installed in down respectively between lockplate and the extruding frame (3), and fastening through lock screw (4).
4. the micro machine driving device of infusion pump according to claim 3; It is characterized in that: said extruding frame (3) is positioned at the below of last first pump line of infusion board (21) (214A) and second pump line (214B) of infusion pump; And push the lower wall of the left and right sides edge of frame, and when shift fork (15) is swung, alternately swing up and down extruding first pump line or second pump line over against first pump line and second pump line.
5. according to the micro machine driving device of the arbitrary described infusion pump of claim l to 4, it is characterized in that: said coupling spindle (5) is respectively equipped with sealing ring (6) with the junction of fixing head (9) intermediate projections cavity (9-1).
6. according to the micro machine driving device of the arbitrary described infusion pump of claim l to 4, it is characterized in that: said eccentric (11) is fixedly connected with radial bearing (13) through snap ring (17).
7. according to the micro machine driving device of the arbitrary described infusion pump of claim l to 4, it is characterized in that: said eccentric (11) passes through to annotate spiral shell (12) or key connecting with motor shaft.
8. according to the micro machine driving device of the arbitrary described infusion pump of claim l to 4, it is characterized in that: said deceleration micro machine (10) is through low-voltage power supply socket (22) or battery (26) power supply in the battery case (25) that be arranged on JIKE (28) bottom of control circuit board (23) through being arranged on JIKE (28) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210047922 CN102526832B (en) | 2012-02-29 | 2012-02-29 | Micro motor driving device of blood transfusion and fluid transfusion pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210047922 CN102526832B (en) | 2012-02-29 | 2012-02-29 | Micro motor driving device of blood transfusion and fluid transfusion pump |
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| Publication Number | Publication Date |
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| CN102526832A true CN102526832A (en) | 2012-07-04 |
| CN102526832B CN102526832B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210047922 Active CN102526832B (en) | 2012-02-29 | 2012-02-29 | Micro motor driving device of blood transfusion and fluid transfusion pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495245A (en) * | 2013-10-11 | 2014-01-08 | 上海由威通信科技有限公司 | Quick heating infusion box |
| CN104587556A (en) * | 2015-01-14 | 2015-05-06 | 杨力 | Diaphragm pump type internal motive infusion apparatus |
| CN106421976A (en) * | 2016-08-08 | 2017-02-22 | 上海金怡医疗科技有限公司 | Extruding-swinging type eccentric wheel drive mechanical and electrical integration system |
| CN111135389A (en) * | 2020-03-02 | 2020-05-12 | 温州市人民医院 | Medical infusion pump device |
| CN111481758A (en) * | 2019-01-25 | 2020-08-04 | 深圳核心医疗科技有限公司 | Ventricular assist device |
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| US5263830A (en) * | 1991-01-23 | 1993-11-23 | Sharp Kabushiki Kaisha | Peristaltic pump assembly |
| CN1097632A (en) * | 1993-07-17 | 1995-01-25 | 邱峰 | Portable micro pump |
| CN2574686Y (en) * | 2002-10-11 | 2003-09-24 | 种立刚 | Tranfusion pipe cut-off automatic alarming apparatus |
| CN201150687Y (en) * | 2007-09-14 | 2008-11-19 | 朱瑞震 | Wobble quick full-range infusion, blood pump |
| CN101745155A (en) * | 2010-02-05 | 2010-06-23 | 中国人民解放军第三军医大学第二附属医院 | Micro motor infusion pump |
| CN202478297U (en) * | 2012-02-29 | 2012-10-10 | 中国人民解放军第三军医大学第二附属医院 | Micro-motor driving device of pump for fluid infusion and blood transfusion |
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2012
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5263830A (en) * | 1991-01-23 | 1993-11-23 | Sharp Kabushiki Kaisha | Peristaltic pump assembly |
| CN1097632A (en) * | 1993-07-17 | 1995-01-25 | 邱峰 | Portable micro pump |
| CN2574686Y (en) * | 2002-10-11 | 2003-09-24 | 种立刚 | Tranfusion pipe cut-off automatic alarming apparatus |
| CN201150687Y (en) * | 2007-09-14 | 2008-11-19 | 朱瑞震 | Wobble quick full-range infusion, blood pump |
| CN101745155A (en) * | 2010-02-05 | 2010-06-23 | 中国人民解放军第三军医大学第二附属医院 | Micro motor infusion pump |
| CN202478297U (en) * | 2012-02-29 | 2012-10-10 | 中国人民解放军第三军医大学第二附属医院 | Micro-motor driving device of pump for fluid infusion and blood transfusion |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495245A (en) * | 2013-10-11 | 2014-01-08 | 上海由威通信科技有限公司 | Quick heating infusion box |
| CN104587556A (en) * | 2015-01-14 | 2015-05-06 | 杨力 | Diaphragm pump type internal motive infusion apparatus |
| CN106421976A (en) * | 2016-08-08 | 2017-02-22 | 上海金怡医疗科技有限公司 | Extruding-swinging type eccentric wheel drive mechanical and electrical integration system |
| CN111481758A (en) * | 2019-01-25 | 2020-08-04 | 深圳核心医疗科技有限公司 | Ventricular assist device |
| CN111135389A (en) * | 2020-03-02 | 2020-05-12 | 温州市人民医院 | Medical infusion pump device |
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| CN102526832B (en) | 2013-06-05 |
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Effective date of registration: 20160301 Address after: 264209 Weihai torch high tech Industrial Development Zone, Shandong, Xing Shan Road, No. 18 Patentee after: Products of Medical Polymer Co., Ltd., of Weigao Group, Shandong Address before: Chongqing city Shapingba District 400037 Bridge Street No. 183 Patentee before: No.2 Hospital Attached to No.3 Military Medical College, PLA |