CN103062019B - The two-way controllable pump of microminiature injecting type - Google Patents

The two-way controllable pump of microminiature injecting type Download PDF

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Publication number
CN103062019B
CN103062019B CN201310005286.8A CN201310005286A CN103062019B CN 103062019 B CN103062019 B CN 103062019B CN 201310005286 A CN201310005286 A CN 201310005286A CN 103062019 B CN103062019 B CN 103062019B
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support plate
retarder
motor
rubber pipe
gear train
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CN103062019A (en
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王坤东
金轩
王丹
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Abstract

The invention provides the two-way controllable pump of a kind of microminiature injecting type, comprise: Linear feed mechanism, pump cavity, clamping mechanism, the first rubber pipe and the second rubber pipe, Linear feed mechanism is connected to the side of pump cavity, first rubber pipe and the second rubber pipe are connected to the opposite side of pump cavity, and clamping mechanism is connected with the first rubber pipe and the second rubber pipe respectively.The present invention has that volume is little, flow is large, control accuracy is high, stable performance and structure advantage simple, easy to operate, applied widely.

Description

The two-way controllable pump of microminiature injecting type
Technical field
The present invention relates to electro-mechanical arts, particularly, relate to the two-way controllable pump of a kind of microminiature injecting type.
Background technique
Microminiature pump is having application demand more in industry, medical treatment, biotechnology, microfluidic control etc., with the accurate control of micrometeor with take volume microminiaturization as the focus that the Micropump research of goal in research has become actuation techniques research.1998, the people such as Honda proposed a kind of miniature pump using permanent magnet and spring sheet, and size is approximately 13.8mm × 17mm × 33mm, and Peak Flow Rate can reach 750ml/min.Richer utilizes static-electronic driving device, designs electrohydraulic dynamic syringe pump, is of a size of 3mm × 3mm × 1mm, and Peak Flow Rate is 100ml/min.Guo utilizes ionic conduction polymeric membrane final controlling element to develop the Micropump of specification for Ф 12mm × 20mm, and test result shows that the flow velocity of pump is adjustable between 3.5 ~ 37.8 μ l/min.Francis reports the Micropump of a kind of 10mm of use diameter piezoelectric actuator, passive decline valve and control circuit, can be used for drug delivery, and peak rate of flow is 900 μ l/min.Saggere proposes a kind of high flow rate Micropump of Piezoelectric Driving, and package dimension is 22.7mm × 15.7mm × 8.6mm, and flow velocity is 2.5ml/min.These pumps are mostly made up of film, cavity and valve, and driving force provides primarily of electrostatic, piezoelectricity and pneumatic actuator etc., precisely can control micrometeor.But, except accurate micrometeor controls, in the cooling, drug delivery, conduit guidings, microrobot driving etc. of microelectronic component, need to meet flow greatly and the small pump of volume simultaneously.And existing micropump can not take into account above 2 points simultaneously, volume or flow user demand on the one hand can only be met, the user demand that volume is little, flow is large cannot be met simultaneously.
Summary of the invention
For defect of the prior art, the object of this invention is to provide that a kind of volume is little, flow is large, and the two-way controllable pump of microminiature injecting type that structure is simple, reliable.
According to an aspect of the present invention, there is provided a kind of microminiature injecting type two-way controllable pump, comprise: Linear feed mechanism, pump cavity, clamping mechanism, the first rubber pipe and the second rubber pipe, Linear feed mechanism is connected to the side of pump cavity, first rubber pipe and the second rubber pipe are connected to the opposite side of pump cavity, and clamping mechanism is connected with the first rubber pipe and the second rubber pipe respectively.
Preferably, this Linear feed mechanism comprises: retarder, direct current motor, leading screw, nut, movement output bar, retarder backplate, retarder left support plate, retarder right support plate, the first support block, motor left support plate, motor right support plate and rolling bearing, retarder is connected with retarder left support plate and retarder right support plate respectively, retarder backplate is connected with retarder left support plate, and the first support block is connected with retarder left support plate and retarder right support plate respectively; Direct current motor is connected with motor left support plate and motor right support plate respectively, motor left support plate is connected with retarder right support plate, nut is socketed with direct current motor and is connected, movement output bar be connected with nut and be arranged in motor right support plate extend to motor right support plate outside be connected with pump cavity, leading screw is arranged in retarder right support plate, motor left support plate, nut and motor right support plate successively, and revolve with nut and be connected, rolling bearing is separately positioned between leading screw and motor left support plate and between leading screw and motor right support plate.
Preferably, this retarder comprises further: motor gear, first gear train, second gear train, 3rd gear train, screw gear and some sliding bearings, motor gear is connected with the output shaft of direct current motor, first gear train is connected with retarder right support plate by sliding bearing, second gear train is connected with retarder left support plate by sliding bearing, 3rd gear train is connected with retarder left support plate and retarder right support plate respectively by sliding bearing, screw gear is connected with the input shaft of leading screw, wherein, motor gear engages the first gear train, first gear train engages the second gear train, second gear train engagement the 3rd gear train, 3rd gear train engagement screw gear.
Preferably, this Linear feed mechanism also comprises two spin-ended guide rods, and two spin-ended guide rods are all arranged in nut and are connected with motor left support plate and motor right support plate respectively.
Preferably, this Linear feed mechanism also comprises left position probe, right position probe and probe insulating bush, left and right position probe is in order to detect the limit position of nut, left position probe is connected with motor left support plate, right position probe is connected with right motor support plate, and probe insulating bush is separately positioned between left position probe and motor left support plate and between right position probe and right motor support plate.
Preferably, this Linear feed mechanism also comprises some fixed blocks, between retarder backplate and retarder left support plate, retarder backplate, between retarder left support plate and the first support block, and all to be connected by fixed block between retarder right support plate and motor left support plate.
Preferably, this pump cavity comprises: sleeve, bellows, left end cap, right end cap, some O type circles, some pressure rings and some fixed blocks, bellows is arranged in sleeve, left end cap and right end cap respectively with sleeve connection, and right end cap is provided with the attachment hole be connected with the first rubber pipe and the second rubber pipe, first rubber pipe and the second rubber pipe are communicated with bellows by attachment hole, and glued joint with right end cap and be connected, pressure ring overlaps the two ends that are connected to bellows respectively and is connected with left end cap and right end cap respectively by fixed block, each O type circle is separately positioned between bellows and pressure ring.
Preferably, this clamping mechanism comprises: left clamping plate, right clamping plate, first shape memory alloy spring, second shape memory alloy spring, escapement, axle, second support block and some fixed blocks, second support block is provided with " L " type step, left clamping plate and right clamping plate are connected to the two ends of the second support block respectively by fixed block, axle is arranged in left clamping plate respectively with right clamping plate and is connected with escapement, the containing space of accommodating first rubber pipe and the second rubber pipe is formed between escapement and " L " type step, first shape memory alloy spring, the two ends of the second shape memory alloy spring by fixed block respectively with the second support block and escapement affixed.
Preferably, this bellows adopts compressible soft silicon rubber to make.
Preferably, this fixed block is screw.
The present invention utilizes compressible soft silicon rubber bellows as the cavity of pump, sylphon seal, first rubber pipe and the second rubber pipe and outside communicate, what stretched by bellows, compression is clamped down on two pipes, decontrol is coordinated in order, continuous print one-way flow can be realized, and can when needing the flow direction of alter the flow direction of alter at once.Pump is time out of service, and two rubber tubings are all in the state closed by clamping down on.Operationally, always first one of them rubber pipe clamped by pincers, and another rubber pipe is opened, and stretching bellows is to natural length, and fluid flows into bellows.Then, the rubber pipe of clamp is opened, and another rubber pipe is clamped down on, and compress bellows is to limit position, then the fluid be temporarily stored in bellows is pushed out, and repeats this circulation and then can realize the one-way flow of fluid by continuous print.What change two rubber pipes clamps down on order, then can realize reciprocal flowing.
Compared with prior art, beneficial effect of the present invention is: the present invention uses the Linear feed mechanism of motor reducer and feed screw nut by compand bellows, what control the turnover mouth of pipe cut-offs the two-way flow realizing fluid, instead of the parts such as film and valve of existing normal miniature pump, structure is simple, easy to operate, stable performance, and volume is little, flow is large, flow control accuracy is high, this structure is cylindrical, diameter and length can control respectively at 10mm and below 35mm, can be widely used in the fields such as microrobot driving, drug delivery.Therefore, compared with prior art, the present invention have that volume is little, flow is large, control accuracy is high, stable performance and structure advantage simple, easy to operate, applied widely.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural representation of the two-way controllable pump of microminiature injecting type of the present invention;
Fig. 2 is the structural representation of the Linear feed mechanism of the embodiment of the present invention;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the structural representation of the pump cavity of the embodiment of the present invention;
Fig. 5 is the structural representation of the clamping mechanism of the embodiment of the present invention;
Fig. 6 is the structure side view of the clamping mechanism of the embodiment of the present invention;
Fig. 7 is the workflow diagram of the two-way controllable pump of microminiature injecting type of the present invention.
In figure: 1 is Linear feed mechanism, 2 is pump cavity, 3 is clamping mechanism, 4 is the first rubber pipe, 5 is the second rubber pipe, 6 is fixed block, 101 is direct current motor, 102 is leading screw, 103 is nut, 104 is movement output bar, 105 is retarder backplate, 106 is retarder left support plate, 107 is retarder right support plate, 108 is the first support block, 109 is motor left support plate, 110 is motor right support plate, 111 is rolling bearing, 112 is two spin-ended guide rods, 113 is left position probe, 114 is right position probe, 115 is probe insulating bush, 116 is motor gear, 117 is the first gear train, 118 is the second gear train, 119 is the 3rd gear train, 120 is screw gear, 121 is sliding bearing, 201 is sleeve, 202 is bellows, 203 is left end cap, 204 is right end cap, 205 is O type circle, 206 is pressure ring, 207 is sealer, 301 is left clamping plate, 302 is right clamping plate, 303 is the first shape memory alloy spring, 304 is the second shape memory alloy spring, 305 is escapement 305, 306 is axle, 307 is the second support block.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Refer to Fig. 1, the two-way controllable pump of a kind of microminiature injecting type, comprise: Linear feed mechanism 1, pump cavity 2, clamping mechanism 3, first rubber pipe 4 and the second rubber pipe 5, Linear feed mechanism 1 is connected to the side of pump cavity 2, first rubber pipe 4 and the second rubber pipe 5 are connected to the opposite side of pump cavity 2, and clamping mechanism 3 is connected with the first rubber pipe 4 and the second rubber pipe 5 respectively.During operation, Linear feed mechanism 1 produces straight reciprocating motion, push and pull pump cavity 2, fluid is from the first rubber pipe 4(or the second rubber pipe 5) be drawn into pump cavity 2, again from pump cavity 2 through the second rubber pipe 5(or the first rubber pipe 4) discharge, clamping mechanism 3 is for controlling the closed of the first rubber pipe 4 and the second rubber pipe 5.
As Fig. 2, shown in Fig. 3, Linear feed mechanism 1 comprises: retarder, direct current motor 101, leading screw 102, nut 103, movement output bar 104, retarder backplate 105, retarder left support plate 106, retarder right support plate 107, first support block 108, motor left support plate 109, motor right support plate 110, rolling bearing 111, two spin-ended guide rods 112, left position probe 113, right position probe 114, probe insulating bush 115 and some fixed blocks 6, retarder comprises: motor gear 116, first gear train 117, second gear train 118, 3rd gear train 119, screw gear 120 and some sliding bearings 121, retarder backplate 105 is fixed by fixed block 6 with retarder left support plate 106, and fixed by fixed block 6 and the first support block 108, first support block 108 is welded and fixed by laser spot welding with retarder right support plate 107, retarder right support plate 107 is fixed by fixed block 6 with motor left support plate 109, and motor left support plate 109 is arranged on the left end of direct current motor 101, and using laser spot welding both to be welded and fixed, above structure forms the supporting frame of retarder.In supporting frame, the first gear train 117 is engaged according to motor gear 116, first gear train 117 engages the second gear train 118, second gear train 118 engages the 3rd gear train 119, 3rd gear train 119 engages the sequential transmissions of screw gear 20, motor gear 116 is connected with the output shaft of direct current motor 101, first gear train 117 is connected with retarder right support 107 plate by sliding bearing 121, second gear train 118 is connected with retarder left support plate 106 by sliding bearing 121, 3rd gear train 119 is connected with retarder left support plate 106 and retarder right support plate 107 respectively by sliding bearing 121, the input shaft tight fit connection of screw gear 120 and leading screw 102, motor right support plate 110 uses laser spot welding to be weldingly fixed on direct current motor 101 right-hand member, leading screw 102 is arranged in retarder right support plate 107 successively, motor left support plate 109, nut 103 and motor right support plate 110, and revolve with nut 103 and be connected, motor left support plate 109 supports fixing screw mandrel 102 with motor right support plate 110 by rolling bearing 111.Two spin-ended guide rods 112 are supported on motor left support plate 109 with in the hole of motor right support plate 110, and through the hole on nut 103.When direct current motor 101 powers on, move through reducer gear group and drive screw mandrel 102 to rotate, nut 103 produces straight line motion due to the leading role of two spin-ended guide rods 112.Motor left support plate 109, motor right support plate 110 left position probe 113 and right position probe 114 have been installed respectively, both use probe insulating bush 115 to insulate respectively, nut 103 connects high level, then when left end (right-hand member) of nut 103 movement lead screw 102, left position probe 113(114) on will export a high level, in order to judge the limit of sports record position of nut 103.Movement output bar 104 one end is welded on nut 103, the other end is arranged in motor right support plate 110 and extends to that motor right support plate 110 is outside to be connected motion transfer with pump cavity 2 to outside, and movement output bar 104 is provided with worm structure, for connecting pump cavity 2.
As shown in Figure 4, pump cavity 2 comprises: sleeve 201, bellows 202, left end cap 203, right end cap 204, four O type circles 205, four pressure rings 206 and some fixed blocks 6, bellows 202 adopts compressible soft silicon rubber to make, and it is arranged in sleeve 201, to prevent from expanding distortion.Left end cap 203 is connected with sleeve 201 respectively with right end cap 204, and right end cap 204 is provided with the attachment hole be connected with the first rubber pipe 4 and the second rubber pipe 5, first rubber pipe 4 and the second rubber pipe 5 are communicated with bellows 202 by attachment hole, and to be gluedd joint by sealer 207 with right end cap 204 and be connected.Pressure ring overlaps the two ends that are connected to bellows respectively and is connected with left end cap and right end cap respectively by fixed block, and each O type circle is separately positioned between bellows and pressure ring.As shown in Figure 4, use three fixed blocks be uniformly distributed along the circumference 6 to be connected and fixed between left end cap 203 and pressure ring 206, the left end of bellows 202 is pressed between pressure ring 206 and left end cap 203 by O type circle 205, and when fixed block 6 screws, bellows 202 left end is sealed.Pressure ring 206, O type circle 205, fixed block 6 are identical with left side with the installation method of right end cap 204, do not repeat them here.
As Fig. 5, shown in Fig. 6, clamping mechanism 3 comprises: left clamping plate 301, right clamping plate 302, first shape memory alloy spring 303, second shape memory alloy spring 304, escapement 305, axle 306, second support block 307 and some fixed blocks 6, second support block 307 is provided with " L " type step, left clamping plate 301 and right clamping plate 302 are connected to the two ends of the second support block 307 respectively by fixed block 6, form the rack section of clamping mechanism 3, axle 306 is arranged in left clamping plate 301 respectively with right clamping plate 302 and is connected with escapement 305, the containing space of accommodating first rubber pipe 4 and the second rubber pipe 5 is formed between escapement 305 and " L " type step.The two ends of the first shape memory alloy spring 303 are separately fixed on the second support block 307 and escapement 305 by fixed block 6, on the second support block 307 that the two ends of the second shape memory alloy spring 304 are fixed on relative opposite side by fixed block 6 and escapement 305.
Escapement 305, second support block 307 is insulating material, first shape memory alloy spring 303 and the second shape memory alloy spring 304 can be energized separately control, clamping mechanism 3 in an initial condition, first rubber pipe 4 and the second rubber pipe 5 are in the equal conducting of half impaction state, when the first shape memory alloy spring 303(or the second shape memory alloy spring 304) energising shortening, second shape memory alloy spring 304(or the first shape memory alloy spring 303) power-off is when naturally extending, escapement 305 is pulled, compress the first rubber pipe 4(or the second rubber pipe 5) and put the second loose rubber pipe 5(or the first rubber pipe 4), now, second rubber pipe 5(or the first rubber pipe 4) conducting and the first rubber pipe 5(or the second rubber pipe) closed.
In this example, above fixed block 6 all adopts screw, but it should be noted that, the present invention does not limit the concrete form of fixed block 6, such as, can also adopt rivet, buckle etc., therefore, this example adopts screw to be an embodiment as fixed block, is not intended to limit the present invention.
Below in conjunction with Fig. 7, the working procedure of the two-way controllable pump of microminiature injecting type of the present invention is described: first, power-up initializing, starts direct current motor 101 and nut 103 is moved, till high level appears in left position probe 113 on the left of screw mandrel 102; Judge afterwards to flow to, be energized if flow to the second rubber pipe 5 turn first shape memory alloy spring 303 from the first rubber pipe 4, second shape memory alloy spring 304 power-off, now the first rubber pipe 4 is closed, and the second rubber pipe 5 is unimpeded, and direct current motor 101 is energized, nut 103 moves to screw mandrel 102 right-hand member, bellows 202 is compressed in the process, and the fluid of its inside flows out via the second rubber pipe 5, until high level appears in right position probe 114; First shape memory alloy spring 303 power-off, second shape memory alloy spring 304 is energized, now the first rubber pipe 4 is unimpeded, second rubber pipe 5 is closed, direct current motor 101 is energized, and nut 103 is to the motion of screw mandrel 102 left end, and bellows 202 is stretched in the process, external fluid flow into inside bellows 202 via the first rubber pipe 4, until high level appears in left position probe 113; Judge whether the transmission of the first rubber pipe 4 to the second rubber pipe 5 terminates, and if it is proceeds to power-off, otherwise repeat above-mentioned steps, then fluid just can constantly flow into from the first rubber pipe 4, flows out from the second rubber pipe 5.If flow to the first rubber pipe 4 from the second rubber pipe 5, then the first shape memory alloy spring 303 power-off, second shape memory alloy spring 304 is energized, now the first rubber pipe 4 is unimpeded, and the second rubber pipe 5 cuts out, and starts direct current motor 101, nut 103 is moved to screw mandrel 102 right-hand member, bellows 202 is compressed in the process, and the fluid of its inside flows out via the second rubber pipe 4, until high level appears in right position probe 114, first shape memory alloy spring 303 is energized, second shape memory alloy spring 304 power-off, now the second rubber pipe 5 is unimpeded, first rubber pipe 4 is closed, direct current motor 101 is energized, nut 103 moves to screw mandrel 102 left end, bellows 202 is stretched in the process, external fluid flow into inside bellows 202 via the first rubber pipe 5, until there is high level in left position probe 113, then judge that the fluid of the second rubber pipe 5 to the first rubber pipe 4 transmits whether to terminate, if it is power-off, otherwise repetition above-mentioned steps, then fluid just can constantly flow into from the second rubber pipe 5, flow out from the first rubber pipe 4.The present invention uses the Linear feed mechanism of motor reducer and feed screw nut by compand bellows, what control the turnover mouth of pipe cut-offs the two-way flow realizing fluid, instead of the parts such as film and valve of existing normal miniature pump, structure is simple, easy to operate, stable performance, and volume is little, flow is large, flow control accuracy is high, this structure is cylindrical, diameter and length can control respectively at 10mm and below 35mm, flow can reach 900ml/min, can be widely used in the fields such as microrobot driving, drug delivery.Therefore, compared with prior art, the present invention have that volume is little, flow is large, control accuracy is high, stable performance and structure advantage simple, easy to operate, applied widely.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.

Claims (9)

1. the two-way controllable pump of microminiature injecting type, it is characterized in that, comprise: Linear feed mechanism, pump cavity, clamping mechanism, the first rubber pipe and the second rubber pipe, described Linear feed mechanism is connected to the side of described pump cavity, described first rubber pipe and the second rubber pipe are connected to the opposite side of described pump cavity, and described clamping mechanism is connected with the first rubber pipe and the second rubber pipe respectively, further, described Linear feed mechanism comprises: retarder, direct current motor, leading screw, nut, movement output bar, retarder backplate, retarder left support plate, retarder right support plate, the first support block, motor left support plate, motor right support plate and rolling bearing, described retarder is connected with described retarder left support plate and retarder right support plate respectively, described retarder backplate is connected with described retarder left support plate, and described first support block is connected with described retarder left support plate and retarder right support plate respectively, described direct current motor is connected with described motor left support plate and motor right support plate respectively, described motor left support plate is connected with described retarder right support plate, described nut is socketed with described direct current motor and is connected, described movement output bar be connected with described nut and be arranged in described motor right support plate extend to described motor right support plate outside be connected with described pump cavity, described leading screw is arranged in described retarder right support plate successively, motor left support plate, nut and motor right support plate, and screw with described nut and be connected, described rolling bearing is separately positioned between described leading screw and motor left support plate and between leading screw and motor right support plate.
2. the two-way controllable pump of microminiature injecting type according to claim 1, it is characterized in that, described retarder comprises further: motor gear, first gear train, second gear train, 3rd gear train, screw gear and some sliding bearings, described motor gear is connected with the output shaft of described direct current motor, described first gear train is connected with described retarder right support plate by described sliding bearing, described second gear train is connected with described retarder left support plate by described sliding bearing, described 3rd gear train is connected with described retarder left support plate and retarder right support plate respectively by described sliding bearing, described screw gear is connected with the input shaft of described leading screw, wherein, described first gear train of described motor gear engagement, described second gear train of described first gear train engagement, described 3rd gear train of described second gear train engagement, described 3rd gear train engages described screw gear.
3. the two-way controllable pump of microminiature injecting type according to claim 1, it is characterized in that, described Linear feed mechanism also comprises two spin-ended guide rods, and described two spin-ended guide rods are all arranged in described nut and are connected with described motor left support plate and motor right support plate respectively.
4. the two-way controllable pump of microminiature injecting type according to claim 1, it is characterized in that, described Linear feed mechanism also comprises left position probe, right position probe and probe insulating bush, described left and right position probe is in order to detect the limit position of described nut, described left position probe is connected with described motor left support plate, described right position probe is connected with described motor right support plate, and described probe insulating bush is separately positioned between described left position probe and described motor left support plate and between described right position probe and described motor right support plate.
5. the two-way controllable pump of microminiature injecting type according to claim 1, it is characterized in that, described Linear feed mechanism also comprises some fixed blocks, between described retarder backplate and retarder left support plate, described retarder backplate, between retarder left support plate and the first support block, and all to be connected by described fixed block between described retarder right support plate and motor left support plate.
6. the two-way controllable pump of microminiature injecting type according to claim 1, it is characterized in that, described pump cavity comprises: sleeve, bellows, left end cap, right end cap, some O type circles, some pressure rings and some fixed blocks, described bellows is arranged in described sleeve, described left end cap and right end cap respectively with described sleeve connection, and described right end cap is provided with the attachment hole be connected with described first rubber pipe and the second rubber pipe, described first rubber pipe and the second rubber pipe are communicated with described bellows by described attachment hole, and glued joint with described right end cap and be connected, described pressure ring overlaps the two ends that are connected to described bellows respectively and is connected with described left end cap and right end cap respectively by described fixed block, described each O type circle is separately positioned between described bellows and described pressure ring.
7. the two-way controllable pump of microminiature injecting type according to claim 6, it is characterized in that, described clamping mechanism comprises: left clamping plate, right clamping plate, first shape memory alloy spring, second shape memory alloy spring, escapement, axle, second support block and some fixed blocks, described second support block is provided with " L " type step, described left clamping plate and right clamping plate are connected to the two ends of described second support block respectively by described fixed block, described axle is arranged in described left clamping plate respectively with right clamping plate and is connected with described escapement, the containing space of accommodating described first rubber pipe and the second rubber pipe is formed between described escapement and described " L " type step, described first shape memory alloy spring, the two ends of the second shape memory alloy spring by described fixed block respectively with described second support block and escapement affixed.
8. the two-way controllable pump of microminiature injecting type according to claim 7, is characterized in that, described bellows adopts compressible soft silicon rubber to make.
9. the two-way controllable pump of microminiature injecting type according to claim 5 or 6 or 7, is characterized in that, described fixed block is screw.
CN201310005286.8A 2013-01-07 2013-01-07 The two-way controllable pump of microminiature injecting type Active CN103062019B (en)

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RU2380058C1 (en) * 2008-05-27 2010-01-27 Закрытое акционерное общество "МедСил" Artificial sphincter
CN101690682A (en) * 2009-10-30 2010-04-07 上海交通大学 Corrugated pipe injection type miniature pump for artificial anal sphincter
CN101797190A (en) * 2009-12-29 2010-08-11 上海交通大学 Micro-peristaltic pump for artificial anal sphincter system

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US9801702B2 (en) * 2010-12-16 2017-10-31 Boston Scientific Scimed, Inc. Artificial sphincter system and method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832999A (en) * 1972-06-22 1974-09-03 R Crilly Sterile drainage assemblies
US7011622B2 (en) * 2000-03-15 2006-03-14 Ams Research Corporation Parylene coated components for artificial sphincters
CN101120897A (en) * 2007-08-16 2008-02-13 上海交通大学 Medical minitype pump used for artificial anus sphincter
RU2380058C1 (en) * 2008-05-27 2010-01-27 Закрытое акционерное общество "МедСил" Artificial sphincter
CN101690682A (en) * 2009-10-30 2010-04-07 上海交通大学 Corrugated pipe injection type miniature pump for artificial anal sphincter
CN101797190A (en) * 2009-12-29 2010-08-11 上海交通大学 Micro-peristaltic pump for artificial anal sphincter system

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