CN101608610A - A kind of micropump - Google Patents
A kind of micropump Download PDFInfo
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- CN101608610A CN101608610A CNA2008100393876A CN200810039387A CN101608610A CN 101608610 A CN101608610 A CN 101608610A CN A2008100393876 A CNA2008100393876 A CN A2008100393876A CN 200810039387 A CN200810039387 A CN 200810039387A CN 101608610 A CN101608610 A CN 101608610A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
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Abstract
The invention discloses a kind of micropump, but described pump comprises actuator, spatially-variable cavity and the input channel and the output channel that link to each other with the space cavity respectively; The valve film of responsive actuation device action is installed in described input channel and/or the output channel.The invention provides a kind of micropump, be used to realize importing the reliable control of one-way valve and output one-way valve.Described valve film can apply prestressing force also can open and close the input and output one-way valve effectively under the not high situation of surface of contact making precision that guarantees described input channel and output channel and valve film.
Description
Technical field
The present invention relates to pump, particularly a kind of micropump.
Background technique
Existing micropump comprises piezoelectric ceramic pump.Consult Fig. 1, Fig. 1 is the structural drawing of existing piezoelectric ceramic pump.Existing piezoelectric ceramic pump 10 comprises piezoelectric ceramic 11 (being called for short piezoelectric constant sometimes), variable space cavity 12, input channel 13, input one-way valve 14, output one-way valve 15, reaches output channel 16.
Piezoelectric ceramic 11 can be the multilayer disc, and the base material of piezoelectric ceramic 11 can be materials such as copper or stainless steel, is covered with one deck piezoceramic material on the base material, also is covered with layer of conductive material above the piezoceramic material, and described conductive material can be a silver.The conductive material that described base material and described piezoceramic material cover above connects the two poles of the earth of ac power supply respectively.After the energising, because the characteristic that piezoceramic material stretches in electric field, therefore, described piezoelectric ceramic 11 will hocket with Ac and raise up and recessed downwards action.
Referring to Fig. 2, first kind of working state figure of existing piezoelectric ceramic pump.First kind of working state of existing piezoelectric ceramic pump is the state that piezoelectric ceramic 11 raises up.
When existing piezoelectric ceramic pump was in first kind of working state, the space of the variable space cavity 12 that is made of piezoelectric ceramic 11 and piezoelectric ceramic pump 10 housings became big, and the pressure in the variable space cavity 12 are diminished.When the pressure of input channel 13 pressure greater than variable space cavity 12, input one-way valve 14 is opened, and makes liquid from input channel 13, enters variable space cavity 12 through input one-way valve 14.When the pressure of variable space cavity 12 during, close output one-way valve 15 simultaneously, make liquid that can not blow back into variable space cavity 12 from output channel 16 less than the pressure of output channel 16.
Referring to Fig. 3, second kind of working state figure of existing piezoelectric ceramic pump.Second kind of work of existing piezoelectric ceramic pump is the recessed downwards state of piezoelectric ceramic 11.
When existing piezoelectric ceramic pump was in second kind of working state, when piezoelectric ceramic 11 was recessed downwards, the space of variable space cavity 12 diminished, and made the pressure in the variable space cavity 12 become big.When the pressure of variable space cavity 12 during greater than the pressure of output channel 16, output one-way valve 15 is opened, and liquid is from variable space cavity 12, through output one-way valve 15, arrive output channel 16.When the pressure of variable space cavity 12 during, close input one-way valve 14 liquid that can not is flow backwards greater than the pressure of input channel 13.
For flowing of liquid, input one-way valve 14 and output one-way valve 15 are equidirectional arranged in series.Because input one-way valve 14 and output one-way valve 15 are the semi-floating one-way valve, when the pressure difference on input channel 13 and output channel 16 both sides is little, be difficult to guarantee that input one-way valve 14 or output one-way valve 15 well seal.Simultaneously, in order to guarantee the tight seal of two one-way valves, general machining accuracy for the valve block and the plane of correspondence all requires very high, is unfavorable for industrial production in enormous quantities.
Therefore, how providing a kind of micropump, guarantee input one-way valve and output one-way valve control reliability, is those skilled in the art's technical issues that need to address.
Summary of the invention
The purpose of this invention is to provide a kind of micropump, be used to realize importing the reliable control of one-way valve and output one-way valve.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of micropump, and described micropump comprises actuator, spatially-variable cavity and the input channel and the output channel that link to each other with the spatially-variable cavity respectively;
The valve film of responsive actuation device action is installed in described input channel and/or the output channel.
Preferably, the width of described valve film is greater than the width of described input channel and/or described output channel.
Preferably, described valve film is specially elastic material.
Preferably, the described feather valve film valve film that is the both sides pretension.
Preferably, described valve film comprises the first valve film and the second valve film;
Described first valve film and described input channel are formed the input one-way valve, and described second valve film and described output channel are formed the output one-way valve.
Preferably, described micropump also comprises valve block, and described valve block is installed in the input channel, forms the input one-way valve, and described second valve film and described output channel are formed the output one-way valve;
Or described valve block is installed in the output channel, forms the output one-way valve; Described first valve film and described input channel are formed the input one-way valve.
Preferably, the input channel outlet side that described input channel is adjacent with described valve film is provided with first groove.
Preferably, the input channel input side that described input channel is adjacent with described valve film is provided with the first valve platform less than described first groove.
Preferably, the output channel outlet side that described output channel is adjacent with described valve film is provided with second groove.
Preferably, the output channel input side that described output channel is adjacent with described valve film is provided with the second valve platform less than described second groove.
Preferably, the output channel outlet side that described output channel is adjacent with described valve film is provided with second groove.
Preferably, the input channel input side that described input channel is adjacent with described valve film is provided with the first valve platform less than described first groove.
Preferably, the output channel input side that described output channel is adjacent with described valve film is provided with the second valve platform less than described second groove.
Preferably, the described first valve platform height more than or equal to or less than the described second valve platform height.
Preferably, the described first valve platform is offered first circular groove outward.
Preferably, the described second valve platform is offered second circular groove outward.
Preferably, described actuator is a piezoelectric ceramic.
Preferably, described piezoelectric ceramic is circular, and described pump upper body has the mounting groove that is used to install described piezoelectric ceramic.
Preferably, described actuator is a magnetostriction equipment, and described mangneto equipment below is fixed with thin slice.
Preferably, described actuator is the strap cam motor, and described cam motor below is fixed with thin slice.
Preferably, described actuator is an electromagnet, and described electromagnet below is fixed with thin slice.
Preferably, described micropump is used for insulin pump.
The described micropump of the embodiment of the invention comprises actuator, spatially-variable cavity and the input channel and the output channel that link to each other with the spatially-variable cavity respectively; The valve film that but the responsive actuation device is installed in described input channel and the output channel and moves.
The described micropump of the embodiment of the invention, when input channel input side when to be input channel liquid feeding side or air inlet side pressure greater than the input channel outlet side be the pressure of the input channel tapping side or the side of giving vent to anger and valve film tension force sum, the valve film is broken the sealing of input channel, and liquid or gas will enter from the input channel input side again and flow out from described input channel outlet side.When the pressure of input channel input side during less than input channel outlet side pressure and valve film tension force sum, the valve film seals up described input channel, and this moment, liquid or gas just can not so just form the input one-way valve by described input channel.The sealing of output channel in like manner also is the same with opening procedure, but direction is opposite.
Because there is tension force in the valve film, can be fixed on well in the described micropump, owing to the pliability of valve film, when especially liquid or gas apply the pressure of closing direction to it in described micropump, can guarantee well to close again.Like this, the described micropump of the embodiment of the invention can guarantee also can open and close input one-way valve and output one-way valve effectively under the not high situation of surface of contact making precision of described micropump input channel and output channel and valve film.
Description of drawings
Fig. 1 is the structural drawing of existing piezoelectric ceramic pump;
Fig. 2 is first kind of working state figure of existing piezoelectric ceramic pump;
Second kind of working state figure of the existing piezoelectric ceramic pump of Fig. 3;
Fig. 4 is first kind of example structure figure of micropump of the present invention;
Fig. 5 is an A-A cross-sectional view shown in Figure 4;
Fig. 6 is first kind of working state figure of first kind of embodiment of micropump of the present invention;
Fig. 7 is second kind of working state figure of first kind of embodiment of micropump of the present invention;
Fig. 8 is second kind of example structure figure of micropump of the present invention;
Fig. 9 is a B-B cross-sectional view shown in Figure 8;
Figure 10 is first kind of working state figure of second kind of embodiment of micropump of the present invention;
Figure 11 is second kind of working state figure of second kind of embodiment of micropump of the present invention.
Embodiment
The invention provides a kind of micropump, be used to realize importing the reliable control of one-way valve and output one-way valve.
In order to make those skilled in the art understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 4 and Fig. 5, Fig. 4 is first kind of example structure figure of micropump of the present invention; Fig. 5 is an A-A cross-sectional view shown in Figure 4.
First kind of described micropump of embodiment of the present invention comprises actuator, spatially-variable cavity 2 and the input channel and the output channel that link to each other with spatially-variable cavity 2 respectively.The valve film 7 of responsive actuation device action is installed in described input channel and the output channel.
Described micropump specifically comprises actuator, pump upper body 3 that links to each other with described actuator and the pump lower body 4 that links to each other with pump upper body 3, and is installed in the valve film 7 between described pump upper body 3 and the described pump lower body 4.
Described actuator specifically adopts piezoelectric ceramic 1 to realize.Described pump upper body 3 offers the mounting groove 31 that is used to install described piezoelectric ceramic 1.
Three groove 32 concentric with described mounting groove 31 can also be offered in described pump upper body 3, form ring-shaped step 31a between described the 3rd groove 32 and the described mounting groove 31, described piezoelectric ceramic 1 is installed with described ring-shaped step 31a sealing, and described piezoelectric ceramic 1 forms described spatially-variable cavity 2 with described the 3rd groove 32.
Piezoelectric ceramic 1 is the multilayer disc, and the base material of piezoelectric ceramic 1 can be materials such as copper or stainless steel, is covered with one deck piezoceramic material on the base material, also is covered with layer of conductive material above the piezoceramic material.Described conductive material can be a silver.
The conductive material that described base material and described piezoceramic material cover above connects the two poles of the earth of ac power supply respectively.After the energising, because the characteristic that piezoceramic material stretches in electric field, therefore, described piezoelectric ceramic 1 will hocket with Ac and raise up and recessed downwards action.
The width of described valve film 7 can be slightly larger than the width of described input channel and described output channel, to guarantee the sealing of 7 pairs of input channels of valve film and output channel.
Pump upper body input channel 5a and the pump upper body output channel 6a that is connected with described spatially-variable cavity 2 offered in described pump upper body 3.
In the corresponding position of pump lower body 4, offer the pump lower body input channel 5b and the pump lower body output channel 6b that are connected with described spatially-variable cavity 2 with described pump upper body input channel 5a.
Described valve film 7 is formed the input one-way valve with described pump upper body input channel 5a and pump lower body input channel 5b.Described valve film 7 is formed the output one-way valve with described pump upper body output channel 6a and pump lower body output channel 6b.
Described valve film 7 specifically can adopt elastic material.Described valve film 7 can be assemblied between described pump upper body 3 and the pump lower body 4 by bonding or clamping.Because valve film 7 is bonding or clamps and to be assemblied in 4 of pump upper body 3 and pump lower bodies, therefore can not produce the unfixing instability that may bring in prior art middle valve plate position in valve chamber, the valve film can also have pretightening force to improve the service behaviour of piezoelectric ceramic pump simultaneously.
Input one-way valve and output one-way valve can shared valve films 7.Input one-way valve and output one-way valve also can use two independent valve films respectively--the first valve film and the second valve film.
Described first valve film and described input channel are formed the input one-way valve.Described second valve film and described output channel are formed the output one-way valve.
Certainly, described micropump can also be formed the output one-way valve by described second valve film and described output channel, and valve block is installed in input channel, forms the input one-way valve.
Described micropump can also be formed the input one-way valve by described first valve film and described input channel, and described valve block is installed in output channel, forms the output one-way valve.
First kind of described micropump of embodiment of the present invention, the first groove 5a1 is offered in described pump upper body 3 below the input channel 5a of described pump upper body, make described valve film 7 producing deformation under the pressure of extraneous liquid or gas in the scope of the described first groove 5a1.Thereby, guaranteed the deformation band of described valve film 7 effectively as the input one-way valve.
The described micropump of the embodiment of the invention, described pump lower body 4 is also offered the second groove 6b1 above described pump lower body output channel 6b, make described valve film 7 producing deformation under the pressure of extraneous liquid or gas in the scope of the described second groove 6b1.Thereby, guaranteed the deformation band of described valve film 7 effectively as the output one-way valve.
Referring to Fig. 6, this figure is first kind of working state figure of first kind of embodiment of micropump of the present invention.
First kind of working state of first kind of embodiment of micropump of the present invention promptly imported the state of one-way valve opens, output closed check valve.
After piezoelectric ceramic 1 energising, when piezoelectric ceramic 1 raised up, the space of the spatially-variable cavity 2 that is made of piezoelectric ceramic 1 and pump upper body 3 became big, and the pressure in the spatially-variable cavity 2 are diminished.When the pressure of pump lower body input channel 5b during greater than the pressure of spatially-variable cavity 2, spatially-variable cavity 2 produces negative pressure, make liquid or gas push valve film 7 open from pump lower body input channel 5b, valve film 7 can produce distortion in the space of the first groove 5a1, promptly open the input one-way valve, make liquid or gas enter spatially-variable cavity 2 through described input one-way valve.Under the pressure difference effect of pressure greater than pump upper body output channel 6a of pump lower body output channel 6b, add the pliability of valve film 7 because there is negative pressure in spatially-variable cavity 2 this moment, and valve film 7 will closely be closed the output one-way valve.Liquid or gas can not enter spatially-variable cavity 2 by valve film 7 (promptly exporting one-way valve) from pump lower body output channel 6b.
When piezoelectric ceramic 1 reaches when raising up peak, valve film 7 recovery shapes close pump lower body input channel 5b and pump upper body input channel 5a has promptly closed the input one-way valve, make spatially-variable cavity 2 interior liquid not turn back to pump lower body input channel 5b from the pump upper body through pump upper body input channel 5a.
Referring to Fig. 7, this figure is second kind of working state figure of first kind of embodiment of micropump of the present invention.
Second kind of working state of first kind of embodiment of micropump of the present invention promptly imported the state of closed check valve, output one-way valve opens.
When piezoelectric ceramic 1 is replied straight or is continued to be bent downwardly, spatially-variable cavity 2 smaller volume, increased pressure.This pressure can make valve membrane closure pump lower body input channel 5b better, promptly seals up the input one-way valve.Simultaneously, this pressure can be pushed the valve film 7 at output channel 6a place, pump upper body open, and valve film 7 can produce distortion in the space of the second groove 6b1, makes liquid or gas arrive pump lower body output channel 6b.
When piezoelectric ceramic 1 downward distortion touched the bottom, valve film 7 recovered shapes, closes the output one-way valve.Make liquid not flow to pump upper body output channel 6a by the output one-way valve and arrive spatially-variable cavity 2 from pump lower body output channel 6b.
After Fig. 6 and two working staties shown in Figure 7 finish, the action cycle of just having finished first kind of described micropump of embodiment of the present invention.
The described micropump of the embodiment of the invention can guarantee the pump upper body that processes by general injection moulding mode and the proper functioning of pump lower body.The described micropump of the embodiment of the invention, utilize the position stability of the valve film assurance valve of tension, the pressure to the closing direction of valve film 7 of the pliability of utilizing valve film 7 when pump work reaches perfect applying sealing, makes input one-way valve and the folding reliably of output one-way valve.
Referring to Fig. 8 and Fig. 9, be second kind of example structure figure of micropump of the present invention; Fig. 9 is a B-B cross-sectional view shown in Figure 8.
Relative first embodiment of second kind of embodiment of micropump of the present invention, described pump lower body 4 can be provided with the first valve platform 41 less than the described first groove 5a1 above described pump lower body input channel 5b.Has the through hole that communicates with described pump lower body input channel 5b in the described first valve platform 41.
Under the preferable case, the described first valve platform, 41 inner via holes are identical with described pump lower body input channel 5b.
The described micropump of the embodiment of the invention, described pump upper body 3 also can be provided with second a valve platform 33 less than the described second groove 6b1 below the output channel 6a of described pump upper body.Has the through hole that communicates with described pump upper body output channel 6a in the described second valve platform 33.
Under the preferable case, the described second valve platform, 33 inner via holes are identical with described pump upper body output channel 6a.
The described micropump of the embodiment of the invention can only be provided with the second valve platform 33, so just can guarantee the seal of one-way valve when pump housing accuracy of manufacturing is not high more reliably, especially under the little situation of outlet pressure difference, makes described micropump have good stable.
The described micropump of the embodiment of the invention can also only be provided with the first valve platform 41, so just can guarantee the seal of one-way valve when pump housing accuracy of manufacturing is not high more reliably, especially under the little situation of inlet pressure difference, make described micropump have good stable.
The described micropump of the embodiment of the invention also can be provided with the first valve platform 41 and the second valve platform 33 simultaneously.Can make described valve film 7 obtain bigger tension force also can be fitted on the corresponding valve platform better.So just can guarantee the seal of one-way valve when pump housing accuracy of manufacturing is not high more reliably, especially under the little situation of gateway pressure difference, make described micropump have better stability.
According to the described first valve platform 41 of concrete actual demand highly can be highly identical with the described second valve platform 33 also can be inequality.Even the height of a certain valve platform can be 0.When two valve platform height all are 0 is exactly first embodiment's situation.
Referring to Figure 10 and Figure 11, Figure 10 is first kind of working state figure of second kind of embodiment of micropump of the present invention; Figure 11 is second kind of working state figure of second kind of embodiment of micropump of the present invention.
First kind of working state of second kind of embodiment of micropump of the present invention promptly imported the state of one-way valve opens, output closed check valve.
When piezoelectric ceramic 1 raised up, the space of the spatially-variable cavity 2 that is made of piezoelectric ceramic 1 and pump upper body 3 became big, and the pressure in the spatially-variable cavity 2 are diminished.When the pressure of pump lower body input channel 5b during greater than the pressure of spatially-variable cavity 2, spatially-variable cavity 2 produces negative pressure, make liquid or gas push valve film 7 open from pump lower body input channel 5b, valve film 7 can produce distortion in the space of the first groove 5a1, promptly open the input one-way valve, make liquid or gas enter spatially-variable cavity 2 through described input one-way valve.Effectively guaranteed export one-way valve airtight and closed because there is negative pressure in spatially-variable cavity 2, and the described second valve platform 33 has increased the pretightening force of described valve film 7 again this moment.Liquid or gas can not enter spatially-variable cavity 2 by valve film 7 (promptly exporting one-way valve) from pump lower body output channel 6b.
When piezoelectric ceramic 1 reaches when raising up peak, valve film 7 recovers the path that shape is closed pump lower body input channel 5b and pump upper body input channel 5a, promptly closed the input one-way valve, the described first valve platform 41 has increased the pretightening force of described valve film 7 again, has guaranteed to import the airtight of one-way valve effectively and has closed.Make spatially-variable cavity 2 interior liquid not turn back to pump lower body input channel 5b from the pump upper body through input channel 5a.
Figure 11 promptly imports the state of closed check valve, output one-way valve opens for second kind of working state of second kind of embodiment of micropump of the present invention.
When piezoelectric ceramic 1 is replied straight or is continued to be bent downwardly, spatially-variable cavity 2 smaller volume, increased pressure.This pressure can make valve membrane closure pump lower body input channel 6a better, promptly seals up the input one-way valve.Simultaneously, this pressure can be pushed the valve film 7 at output channel 6a place, pump upper body open, and valve film 7 can produce distortion in the space of the second groove 6b1, makes liquid or gas arrive pump lower body output channel 6b.
When piezoelectric ceramic 1 downward distortion touched the bottom, valve film 7 recovered shapes, closes the output one-way valve.Valve film 7 has increased the pretightening force of described valve film 7 under 33 effects of the second valve platform, guaranteed to export the airtight of one-way valve effectively and closed.Make spatially-variable cavity 2 interior liquid not turn back to pump upper body output channel 6a from pump lower body output channel 6b.
After Figure 10 and two working staties shown in Figure 11 finish, the action cycle of just having finished second kind of described miniature piezo-ceramic pump of embodiment of the present invention.
Relative second embodiment of the third embodiment of micropump of the present invention, in described pump lower body 4 and the corresponding position of the described first groove 5a1, also offer first circular groove, the outside dimension of described first circular groove is greater than or equal to the boundary dimension of the described first groove 5a1.Offering of described first circular groove, be for pump upper body and pump lower body under by situation about being adhesively fixed, prevent that binder from flowing on the input one-way valve working surface and the bypass channel that is provided with.
The described micropump of the embodiment of the invention, second circular groove also can be offered in the position corresponding with the described second groove 6b1 in described pump upper body 3, and the outside dimension of described second circular groove is greater than or equal to the boundary dimension of the described second groove 6b1.
Offering of described second circular groove, be for pump upper body and pump lower body under by situation about being adhesively fixed, prevent that binder from flowing on the output one-way valve working surface and the bypass channel that is provided with.
The described actuator of the embodiment of the invention can also be magnetostriction equipment, and described magnetostriction equipment comprises magnetostriction materials and coil, and described coil is wrapped in around the described magnetostriction materials, and described magnetostriction materials below is fixed with thin slice.
The described actuator of the embodiment of the invention can also be the strap cam motor, and described strap cam motor comprises cam and motor, and described cam connects the actuator of described motor, and described cam below is fixed with thin slice.
The described actuator of the embodiment of the invention can also be an electromagnet, and described electromagnet comprises electrician's soft iron and coil, and described coil twines described electrician's soft iron, and described electrician's soft iron below is fixed with thin slice.
The described micropump of the embodiment of the invention can be applied to medical fields such as insulin syringe or analgesic pump.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (23)
1, a kind of micropump is characterized in that, described micropump comprises actuator, space
Variable cavity and the input channel and the output channel that link to each other with the spatially-variable cavity respectively;
The valve film of responsive actuation device action is installed in described input channel and/or the output channel.
2, micropump according to claim 1 is characterized in that, the width of described valve film is greater than the width of described input channel and/or described output channel.
3, micropump according to claim 2 is characterized in that, described valve film is specially elastic material.
4, micropump according to claim 3 is characterized in that, the valve film that described feather valve film is the both sides pretension.
According to claim 3 or 4 described micropumps, it is characterized in that 5, described valve film comprises the first valve film and the second valve film;
Described first valve film and described input channel are formed the input one-way valve, and described second valve film and described output channel are formed the output one-way valve.
6, micropump according to claim 5 is characterized in that, described micropump also comprises valve block, and described valve block is installed in the input channel, forms the input one-way valve, and described second valve film and described output channel are formed the output one-way valve;
Or described valve block is installed in the output channel, forms the output one-way valve, and described first valve film and described input channel are formed the input one-way valve.
7, micropump according to claim 5 is characterized in that, the input channel outlet side that described input channel is adjacent with described valve film is provided with first groove.
8, micropump according to claim 7 is characterized in that, the output channel outlet side that described output channel is adjacent with described valve film is provided with second groove.
9, micropump according to claim 8 is characterized in that, the output channel input side that described output channel is adjacent with described valve film is provided with the second valve platform less than described second groove.
10, micropump according to claim 7 is characterized in that, the input channel input side that described input channel is adjacent with described valve film is provided with the first valve platform less than described first groove.
11, micropump according to claim 5 is characterized in that, the output channel outlet side that described output channel is adjacent with described valve film is provided with second groove.
12, micropump according to claim 11 is characterized in that, the output channel input side that described output channel is adjacent with described valve film is provided with the second valve platform less than described second groove.
13, micropump according to claim 8 is characterized in that, the input channel input side that described input channel is adjacent with described valve film is provided with the first valve platform less than described first groove.
14, micropump according to claim 13 is characterized in that, the output channel input side that described output channel is adjacent with described valve film is provided with the second valve platform less than described second groove.
15, micropump according to claim 14 is characterized in that, the described first valve platform height more than or equal to or less than the described second valve platform height.
16, micropump according to claim 10 is characterized in that, the described first valve platform is offered first circular groove outward.
17, micropump according to claim 12 is characterized in that, the described second valve platform is offered second circular groove outward.
18, micropump according to claim 5 is characterized in that, described actuator is a piezoelectric ceramic.
19, micropump according to claim 18 is characterized in that, described piezoelectric ceramic is circular, and described pump upper body has the mounting groove that is used to install described piezoelectric ceramic.
20, micropump according to claim 5 is characterized in that, described actuator is a magnetostriction equipment, and described mangneto equipment below is fixed with thin slice.
21, micropump according to claim 5 is characterized in that, described actuator is the strap cam motor, and described cam motor below is fixed with thin slice.
22, micropump according to claim 5 is characterized in that, described actuator is an electromagnet, and described electromagnet below is fixed with thin slice.
23, micropump according to claim 5 is characterized in that, described micropump is used for insulin pump.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100393876A CN101608610A (en) | 2008-06-20 | 2008-06-20 | A kind of micropump |
| PCT/CN2009/072344 WO2009152775A1 (en) | 2008-06-20 | 2009-06-19 | A micro pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100393876A CN101608610A (en) | 2008-06-20 | 2008-06-20 | A kind of micropump |
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| CN101608610A true CN101608610A (en) | 2009-12-23 |
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| CNA2008100393876A Pending CN101608610A (en) | 2008-06-20 | 2008-06-20 | A kind of micropump |
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| CN (1) | CN101608610A (en) |
| WO (1) | WO2009152775A1 (en) |
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| CN103599578A (en) * | 2013-12-03 | 2014-02-26 | 吉林大学 | Portable piezoelectric driving insulin pump |
| CN105031764A (en) * | 2014-06-17 | 2015-11-11 | 南京山诺生物科技有限公司 | Micro piezoelectric type infusion apparatus |
| WO2016188428A1 (en) * | 2015-05-25 | 2016-12-01 | 美敦力公司 | Fluid infusion apparatus used for administering medicament to patient |
| CN107072563A (en) * | 2014-10-21 | 2017-08-18 | 株式会社村田制作所 | valve, fluid control device and sphygmomanometer |
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| CN107654358A (en) * | 2012-04-19 | 2018-02-02 | 株式会社村田制作所 | Fluid control device |
| WO2018099390A1 (en) * | 2016-12-01 | 2018-06-07 | 林世明 | Single-arm pneumatic pump device |
| WO2019061946A1 (en) * | 2017-09-30 | 2019-04-04 | 南方科技大学 | Microfluidic pump |
| CN112587753A (en) * | 2020-12-29 | 2021-04-02 | 无锡顶点医疗器械有限公司 | Power device |
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| CN105031764A (en) * | 2014-06-17 | 2015-11-11 | 南京山诺生物科技有限公司 | Micro piezoelectric type infusion apparatus |
| CN105031764B (en) * | 2014-06-17 | 2019-01-25 | 南京山诺生物科技有限公司 | Micro piezoelectric infusion apparatus |
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| CN107072563A (en) * | 2014-10-21 | 2017-08-18 | 株式会社村田制作所 | valve, fluid control device and sphygmomanometer |
| WO2016188428A1 (en) * | 2015-05-25 | 2016-12-01 | 美敦力公司 | Fluid infusion apparatus used for administering medicament to patient |
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| WO2009152775A1 (en) | 2009-12-23 |
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Address after: 201203 Shanghai City Newton Road, Pudong New Area Zhangjiang hi tech Park No. 501 Applicant after: Shanghai MicroPort Medical Equipment (Group) Co., Ltd. Address before: 201203 Shanghai City Newton Road, Pudong New Area Zhangjiang hi tech Park No. 501 Applicant before: Weichuang Medical Equipment (Shanghai) Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: WEICHUANG MEDICAL EQUIPMENT (SHANGHAI) CO., LTD. TO: SHANGHAI MICROPORT MEDICAL EQUIPMENT (GROUP) CO., LTD. |
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Application publication date: 20091223 |