WO2022234778A1 - バルブ、流体制御装置、加圧装置、および、血圧計 - Google Patents
バルブ、流体制御装置、加圧装置、および、血圧計 Download PDFInfo
- Publication number
- WO2022234778A1 WO2022234778A1 PCT/JP2022/018531 JP2022018531W WO2022234778A1 WO 2022234778 A1 WO2022234778 A1 WO 2022234778A1 JP 2022018531 W JP2022018531 W JP 2022018531W WO 2022234778 A1 WO2022234778 A1 WO 2022234778A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hole
- valve
- membrane
- wall
- valve chamber
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 93
- 239000012528 membrane Substances 0.000 claims description 109
- 238000007599 discharging Methods 0.000 claims description 15
- 230000036772 blood pressure Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 14
- 230000001052 transient effect Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
- F16K99/0015—Diaphragm or membrane valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
-
- 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
- F04B43/046—Micropumps with piezoelectric drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/1402—Check valves with flexible valve members having an integral flexible member cooperating with a plurality of seating surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0236—Diaphragm cut-off apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
- F16K99/0028—Valves having multiple inlets or outlets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0034—Operating means specially adapted for microvalves
- F16K99/0055—Operating means specially adapted for microvalves actuated by fluids
- F16K99/0057—Operating means specially adapted for microvalves actuated by fluids the fluid being the circulating fluid itself, e.g. check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/022—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising a deformable member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K2099/0073—Fabrication methods specifically adapted for microvalves
- F16K2099/008—Multi-layer fabrications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K2099/0082—Microvalves adapted for a particular use
- F16K2099/0094—Micropumps
Definitions
- the present invention relates to a valve that rectifies fluid using a deformable membrane and a fluid control device that includes this valve.
- Patent Document 1 describes a fluid control device that includes a piezoelectric pump and a check valve (valve).
- a housing of the check valve (valve) is formed with a vent hole, a communication hole, a quick exhaust hole, and a check valve hole.
- the vent communicates with the piezoelectric pump.
- the communication hole and the check valve hole communicate with the cuff outside the fluid control device.
- the quick exhaust hole communicates with the outside of the check valve housing.
- the housing includes a first wall and a second wall that are parallel to each other.
- a vent hole and a check valve hole are formed in the first wall.
- a communication hole and a quick exhaust hole are formed in the second wall.
- a diaphragm is installed in the housing.
- the diaphragm separates the internal space of the housing into a first wall-side space and a second wall-side space.
- this diaphragm By deforming this diaphragm due to the flow of fluid, it switches between injecting gas into the cuff and discharging gas from the rapid exhaust port.
- an object of the present invention is to suppress the vibration of the membrane when gas is discharged using the rapid exhaust holes.
- the valve of the present invention comprises a housing, a membrane, and a communicating passage.
- the housing includes a first wall having a first hole communicating with an external pump, a second wall having a second hole communicating with a component to be discharged of fluid, and the first wall and the second wall facing each other. It has a valve chamber sandwiched by The membrane divides the valve chamber into a space on the side of the first wall and a space on the side of the second wall.
- the communication path communicates the space on the side of the first wall and the space on the side of the second wall.
- the second wall has a third hole that can communicate with the outside of the housing and that can discharge the fluid from the valve chamber.
- the aperture surface of the membrane, the first hole on the valve chamber side, and the aperture surface of the third hole on the valve chamber side are In addition, the communication path does not overlap the open surface of the first hole on the valve chamber side and the open surface of the third hole on the valve chamber side, and does not overlap the open surface of the first hole on the valve chamber side. It overlaps at least a part of the opening surface of the third hole on the valve chamber side.
- FIG. 1 is a schematic side sectional view showing the configuration of the fluid control device according to the first embodiment.
- FIG. 2 is a diagram showing a state in which a cuff is attached to the fluid control device according to the first embodiment.
- FIG. 3(A) is a side cross-sectional view enlarging a part of the valve according to the first embodiment, and
- FIG. 3(B) is a perspective plan view showing the relationship between each hole and the membrane.
- FIG. 4 is a diagram showing the flow of gas during the gas supply operation to the cuff, and is a side cross-sectional view enlarging a part of the valve.
- FIG. 5(A) and 5(B) are diagrams showing the flow of gas during the operation of discharging gas from the cuff, and are side cross-sectional views enlarging a part of the valve.
- FIG. 6 is a schematic side sectional view showing the configuration of the fluid control device according to the second embodiment.
- FIG. 7A is a side sectional view enlarging a part of the valve according to the second embodiment, and
- FIG. 7B is a perspective plan view showing the relationship between each hole and the membrane.
- FIG. 8(A) is a side sectional view enlarging a part of the valve according to the third embodiment
- FIG. 8(B) is a perspective plan view showing the relationship between each hole and the membrane.
- FIG. 9 is a diagram showing the flow of gas during the operation of discharging gas from the cuff, and is a side cross-sectional view enlarging a part of the valve.
- FIG. 10(A) is a side cross-sectional view enlarging a part of the valve according to the fourth embodiment
- FIG. 10(B) is a diagram showing the gas flow during the operation of discharging the gas from the cuff.
- FIG. 11A is an enlarged side cross-sectional view of a portion of the valve according to the fifth embodiment
- FIG. 11(C) is a diagram showing the flow of gas during the operation of discharging gas from the cuff, and is a side cross-sectional view enlarging a part of the valve.
- FIG. 12 is a schematic side sectional view showing the configuration of the fluid control device according to the sixth embodiment.
- FIG. 13 is a schematic side sectional view showing the configuration of the fluid control device according to the seventh embodiment.
- FIG. 14 is a schematic side sectional view showing the configuration of the fluid control device according to the eighth embodiment.
- FIG. 15 is a schematic side sectional view showing the configuration of the fluid control device according to the ninth embodiment.
- 16(A) and 16(B) are diagrams showing derived examples of the positional relationship between the hole communicating with the pump, the gas discharge hole, and the membrane.
- FIG. 1 is a schematic side sectional view showing the configuration of the fluid control device according to the first embodiment.
- FIG. 2 is a diagram showing a state in which a cuff is attached to the fluid control device according to the first embodiment.
- the shape of each component is partially or wholly exaggerated in order to make the configuration of the valve and the fluid control device easier to understand.
- a mode using gas for example, air
- the configuration of the present invention can be applied to liquid as well, for example.
- the fluid control device 10 includes a valve 11 and a pump 12.
- the valve 11 and the pump 12 have common members and are integrally formed.
- a cuff 2 is connected to the valve 11 .
- the cuff 2 corresponds to the "fluid ejection target component" of the present invention.
- FIG. 3(A) is a side cross-sectional view enlarging a part of the valve according to the first embodiment
- FIG. 3(B) is a perspective plan view showing the relationship between each hole and the membrane. A specific configuration of the valve 11 will be described below with reference to FIGS. 1, 2, 3A, and 3B.
- the valve 11 includes a housing member 40 , a housing member 70 , a membrane 80 and a retaining plate 90 .
- the housing member 40 includes a flat plate 41 and side walls 42 and is made of metal, resin, or the like.
- the flat plate 41 corresponds to the "first wall" of the invention.
- the side wall 42 connects to the outer edge of the flat plate 41 .
- Side wall 42 has a shape protruding from one main surface of flat plate 41 .
- the flat plate 41 and the side wall 42 may be integrally formed or separately formed and joined or adhered.
- a concave portion 402 is formed by the flat plate 41 and the side wall 42 .
- the flat plate 41 has a protruding portion 410 protruding from one main surface to which the side wall 42 connects.
- a hole 400 is formed in the projecting portion 410 so as to penetrate the projecting portion 410 along the height direction. Due to the shape having this hole 400 , the projecting portion 410 has, for example, a circular cylindrical shape in plan view (when viewed in a direction perpendicular to one main surface).
- the one main surface side and the other main surface side of the flat plate 41 communicate with each other through a hole 400 .
- This hole 400 is a communication hole of the valve 11 to the pump 12 and corresponds to the "first hole" of the present invention.
- the plane of the boundary where the hole 400 communicates with the valve chamber is the opening surface of the hole 400 on the valve chamber side.
- the housing member 70 is plate-shaped and made of metal, resin, or the like.
- the shape which planarly viewed the member 70 for housings is substantially the same as the member 40 for housings.
- the housing member 70 corresponds to the "second wall" of the present invention.
- the housing member 70 has holes 700 , 710 and 790 .
- the hole 700 is opened in one main surface of the housing member 70 .
- the boundary plane where the hole 700 communicates with the outside is the opening surface on the outside of the hole 700 .
- the hole 710 is opened in the other main surface (valve chamber side) of the housing member 70 .
- a boundary plane where the hole 710 communicates with the valve chamber is an opening surface on the outside of the hole 710 .
- the hole 700 and the hole 710 overlap each other in a plan view (viewed in a direction orthogonal to one main surface and the other main surface).
- the holes 700 and 710 communicate with each other.
- a hole formed by connecting the hole 700 and the hole 710 corresponds to the "second hole” of the present invention.
- the hole 700 corresponds to the "first portion" of the present invention
- the hole 710 corresponds to the "second portion" of the present invention.
- One end of the hole 790 opens to the other main surface (valve chamber side) of the housing member 70 .
- the plane of the boundary where the hole 790 communicates with the valve chamber is the opening surface of the hole 790 on the valve chamber side.
- the other end of the hole 790 is opened in the outer surface of the housing member 70 .
- the plane of the boundary where this hole 790 communicates with the outside is the opening surface on the outside side of the hole 790 .
- This hole 790 corresponds to the "third hole" of the present invention.
- the membrane 80 is a so-called valve membrane or diaphragm, and is made of a deformable material such as a rubber sheet.
- a hole 800 is formed in the membrane 80 near the outer edge.
- a hole 800 penetrates the membrane 80 in the thickness direction. This hole 800 corresponds to the "communication path" of the present invention.
- the holding plate 90 is plate-shaped and made of metal, resin, or the like, for example.
- the holding plate 90 has an aperture 900 .
- the opening 900 penetrates the holding plate 90 in the thickness direction, and the shape of the opening 900 in plan view is smaller than the outer shape of the membrane 80 .
- the holding plate 90 holds the membrane 80 so as to overlap the opening 900 . At this time, the holding plate 90 holds the outer edge of the membrane 80 so that the hole 800 communicates with the opening 900 .
- the shape of the opening 900 of the holding plate 90 in plan view is larger than the opening surface of the hole 700 and the opening surface of the hole 790 .
- a holding plate 90 and a housing member 70 are arranged in this order on the side of the housing member 40 where the side wall 42 protrudes.
- the retaining plate 90 abuts the side wall 42 .
- the other main surface of the housing member 70 is connected to the holding plate 90 .
- the housing member 70 is configured such that the other main surface of the housing member 70 faces one main surface of the flat plate 41 of the housing member 40 and the film 80 and the holding plate 90 are sandwiched therebetween. connect to. Thereby, it is surrounded by the housing of the valve 11 formed by the housing member 40, the housing member 70, and the holding plate 90, and the recess 402 of the housing member 40 and the opening 900 of the holding plate 90 A valve chamber consisting of a space communicating with the is formed. In other words, the valve chamber is a space sandwiched between the flat plate 41 of the housing member 40 and the housing member 70 .
- the membrane 80 is positioned within the valve chamber and between the flat plate 41 of the housing member 40 and the housing member 70 .
- the membrane 80 divides the valve chamber into a first space on the side of the housing member 40 (a space formed by the concave portion 402: a space on the first wall side) and a second space on the side of the housing member 70 (opening portion 900). space: the space on the second wall side).
- the first space and the second space communicate with each other through holes 800 in the membrane 80 .
- the hole 400 communicates with the first space formed by the recess 402 , and the hole 710 (hole 700 ) and the hole 790 communicate with the second space formed by the opening 900 . That is, hole 400 and hole 710 (hole 700) and hole 790 are arranged on opposite sides with membrane 80 interposed therebetween.
- the membrane 80 In a plan view of the valve 11 (viewing in the direction in which the housing member 40, the membrane 80, and the housing member 70 are arranged (the first direction of the valve 11)), the membrane 80 has a hole 400 and a hole 710 ( holes 700 ) and holes 790 .
- the opening surface of the hole 400 on the valve chamber side (first space side) and the opening surface of the hole 790 on the valve chamber side (second space side) overlap. More specifically, the opening surface of the hole 790 on the valve chamber side (second space side) completely overlaps the opening surface of the hole 400 on the valve chamber side (first space side).
- the expression that the pore surfaces completely overlap means that, for example, as shown in FIG. It means that the entire open surface of hole 790 lies within the open surface of hole 400 .
- the hole 800 does not overlap the open surface of the hole 400 on the valve chamber side and the open surface of the hole 790 on the valve chamber side. Note that the hole 800 preferably overlaps the hole 710 .
- valve 11 (Operation of valve 11)
- the valve 11 configured as described above realizes the operation of supplying gas to the cuff 2 and the operation of discharging gas from the cuff 2 as described below.
- FIG. 4 is a diagram showing the flow of gas during the gas supply operation to the cuff, and is a side cross-sectional view enlarging a part of the valve.
- the pump 12 When supplying gas to the cuff 2, the pump 12, which will be described later, is driven. By driving the pump 12, the gas flows from the pump 12 through the hole 400 into the first space of the valve chamber. The gas entering through the holes 400 pushes the membrane 80 . Thereby, the membrane 80 is deformed and covers the hole 790 of the housing member 70 . The hole 790 is then blocked by the membrane 80 .
- the gas that has flowed into the first space flows on the first space side of the membrane 80 and flows through the holes 800 into the second space.
- the gas that has flowed into the second space is discharged outside the valve 11 through the holes 710 and 700 .
- the hole 700 communicates with the cuff 2 , and the gas discharged from the hole 700 to the outside of the valve 11 is supplied to the cuff 2 .
- the hole 790 is closed by the membrane 80, and the membrane 80 is pressed against the wall surface of the housing member 70 on the pump chamber side with a predetermined pressure from the first space side.
- the gas that has flowed into the second space through the holes 800 is discharged through the holes 700 without leaking into the holes 790 . Therefore, gas can be efficiently supplied to the cuff 2 .
- FIG. 5(A) and 5(B) are diagrams showing the flow of gas during the operation of discharging gas from the cuff, and are side cross-sectional views enlarging a part of the valve.
- FIG. 5(A) shows the transient state (initial state) of discharge
- FIG. 5(B) shows the steady state of discharge.
- transient state As shown in FIG. 5A, in the transient state, part of the gas that has flowed into the second space pushes the film 80 toward the casing member 40 side. As a result, the film 80 is separated from the wall surface of the housing member 70 on the pump chamber side. And the hole 790 communicates with the second space.
- a channel (first channel) reaching hole 700 to hole 790 and a channel (second channel) reaching hole 400 from hole 700 through hole 800 are formed.
- a rapid change in the cross-sectional area of the first flow channel and a change in flow velocity can be suppressed, and it is possible to prevent the membrane 80 from sharply bending toward the first space due to the airflow to the hole 790 . Therefore, it is possible to prevent the film 80 from colliding with the inner wall surface of the flat plate 41 or the tip of the projecting portion 410 and bending toward the second space due to reaction, and the vibration of the film 80 is suppressed.
- the holes 710 and 790 are on the same side of the membrane 80 and the holes 710 and 400 are on opposite sides of the membrane 80 so that the flow path from the holes 710 to the holes 790 is reduced.
- the pressure drop is less than the pressure drop from hole 710 to hole 400 .
- This pressure loss difference can be adjusted by, for example, the size and position of the hole 800 .
- membrane 80 changes so that member 40 for cases may be approached, and contacts tip side 411 of projection part 410 of member 40 for cases after that. Then, as shown in FIG. 5B, membrane 80 closes hole 400 and almost all of the gas from hole 710 flows to hole 790 . In other words, the membrane 80 deforms toward the inner wall surface of the flat plate 41 and the tip of the protruding portion 410 in almost one direction without causing a large vibration.
- valve 11 can discharge the gas in the cuff 2 to the outside while the membrane 80 hardly vibrates.
- the gas flows into the holes 790 immediately after the gas is discharged from the cuff 2, but the flow rate of the gas causes the membrane to 80 is drawn back into hole 790 and membrane 80 nearly blocks hole 790 .
- the gas pressure then pulls the membrane away from the hole 790 again and impacts the opposite wall. This causes the membrane to vibrate.
- the comparative configuration produces an undesirable vibration noise.
- valve 11 of the present invention it is possible to suppress unwanted vibration noise and improve the gas discharge speed.
- the valve 11 is provided with a projecting portion 410 .
- This projecting portion 410 may not be provided.
- the distance between the opening surface of the hole 400 and the opening surface of the hole 790 can be adjusted without changing the capacity of the pump chamber. Therefore, it is possible to control the flow rate and flow velocity of the fluid on both sides of the membrane 80 in the above-described transient state, and the valve 11 can more reliably suppress the occurrence of vibration.
- the hole 710 has a shape that expands to a position closer to the hole 790 than the hole 700 .
- a portion of the hole 710 that widens toward the hole 790 may be omitted.
- the pressure loss of the gas flowing from the hole 700 to the hole 790 can be reduced. That is, the opening cross-sectional area of the hole 710 is larger than the opening cross-sectional area of the hole 700, so that the pressure loss of the gas flowing from the hole 700 to the hole 790 can be reduced.
- the cross-sectional area of the hole is the cross-sectional area obtained by cutting the hole 700 and the hole 710 along a plane parallel to the opening surface of the hole 700 and the hole 710 .
- the holes 400 and 790 overlap in plan view, so that the area of the membrane 80 can be made smaller than when the holes 790 and 400 are separated in plan view. Thereby, miniaturization of the membrane 80 and thus miniaturization of the valve 11 can be realized.
- a hole 800 is formed in the membrane 80 . This allows the hole 800 to be provided at a position closer to the operating position of the valve 11, that is, the position where the hole 790 and the hole 400 overlap. Thereby, the valve 11 can be made more compact.
- the pump 12 includes a main flat plate 21, a frame 22, a connecting member 23, a piezoelectric element 30, a flat plate 41 of the housing member 40, a side wall member 50, and a lid member 60. .
- the flat plate 41 of the housing member 40 is shared by the valve 11 and the pump 12 .
- the main flat plate 21 is circular in plan view.
- the frame 22 is arranged so as to surround the main flat plate 21 .
- the plurality of connecting members 23 are beam-shaped and arranged between the main flat plate 21 and the frame 22 .
- a plurality of connecting members 23 support the main flat plate 21 with respect to the frame 22 so as to be able to vibrate.
- the piezoelectric element 30 has a circular shape in plan view.
- the piezoelectric element 30 includes a piezoelectric body and a driving conductor.
- the piezoelectric element 30 is arranged on one main surface of the main flat plate 21 . At this time, the center of the piezoelectric element 30 and the center of the main flat plate 21 coincide. Note that matching here includes the range in which the center positions are shifted from each other within the range of manufacturing error.
- the piezoelectric element 30 is distorted by applying a drive voltage.
- the main flat plate 21 vibrates due to the stress caused by the strain of the piezoelectric element 30 .
- the side wall member 50 has an annular shape with a hollow 500 and is arranged between the frame 22 and the housing member 40 .
- the side wall member 50 connects to the frame 22 and the housing member 40 .
- a space (hollow 500 ) surrounded by the structure consisting of the main flat plate 21 , the frame 22 , and the connecting member 23 , the housing member 40 , and the side wall member 50 serves as the pump chamber of the pump 12 .
- the lid member 60 is composed of a flat plate portion and a frame portion, and the frame portion has a shape protruding from one main surface of the flat plate portion. A hole 600 passing through the flat plate portion is formed in the flat plate portion.
- the lid member 60 is arranged to cover the main flat plate 21 , and the frame portion of the lid member 60 is connected to the frame body 22 .
- the fluid control device 10 shares the flat plate 41 and the hole 400 of the housing member 40, and implements the valve 11 and the pump 12 in one housing.
- the fluid control device 10 can be made thinner and smaller.
- the fluid control device 10 can suppress unwanted vibration noise and discharge the gas from the cuff 2 at a higher speed.
- FIG. 6 is a schematic side sectional view showing the configuration of the fluid control device according to the second embodiment.
- FIG. 7A is a side sectional view enlarging a part of the valve according to the second embodiment
- FIG. 7B is a perspective plan view showing the relationship between each hole and the membrane.
- the fluid control device 10A according to the second embodiment differs from the fluid control device 10 according to the first embodiment in that the valve 11A Differs in composition.
- the rest of the configuration of the fluid control device 10A is the same as that of the fluid control device 10, and the description of the similar portions will be omitted.
- the fluid control device 10A includes a valve 11A.
- Valve 11A comprises membrane 80A and retainer plate 90A.
- the holding plate 90A has a shape that protrudes into a region that overlaps with the hole 710 in a plan view when arranged on the housing member 70 .
- the holding plate 90A has a shape that has a portion extending inward from the outer edge of the valve chamber. Accordingly, the holding plate 90 ⁇ /b>A has a smaller area of the opening 900 than the holding plate 90 .
- the holding plate 90A has a hole 910 in this protrusion.
- the hole 910 penetrates the holding plate 90A in the thickness direction. Hole 910 corresponds to the "communication passage" of the present invention.
- the membrane 80A has a shape larger than the aperture 900 of the holding plate 90A. Membrane 80A covers aperture 900 and does not cover aperture 910 . The outer edge of membrane 80A is fixed to retaining plate 90A. In a plan view of the valve 11A, the membrane 80A overlaps the opening surface of the hole 400 on the valve chamber side and the opening surface of the hole 790 on the valve chamber side.
- the valve 11A can suppress vibration of the membrane 80A. Furthermore, in the valve 11A, the area of the membrane 80A, more specifically, the area of the deformed region of the membrane 80A can be reduced, so the response speed of the membrane 80A can be improved.
- FIG. 8(A) is a side sectional view enlarging a part of the valve according to the third embodiment
- FIG. 8(B) is a perspective plan view showing the relationship between each hole and the membrane.
- the fluid control device 10B according to the third embodiment differs from the fluid control device 10A according to the second embodiment in the configuration of the valve 11B.
- the rest of the configuration of the fluid control device 10B is the same as that of the fluid control device 10A, and the description of the similar portions will be omitted.
- the film 80B in the figure is the same as the film 80A
- the holding plate 90B is the same as the holding plate 90A, so detailed description of each will be omitted.
- the valve 11B has a flat plate 41B.
- the flat plate 41B has a support member 420 .
- a support member 420 is formed within the bore 400 .
- the support member 420 has, for example, a mesh shape in plan view. In other words, the support member 420 has a shape that partially closes the hole 400 but ensures gas permeability of the hole 400 .
- the end surface of the support member 420 on the pump chamber side is flush with the tip end surface 411 of the projecting portion 410 .
- FIG. 9 is a diagram showing the flow of gas during the operation of discharging gas from the cuff, and is a side sectional view enlarging a portion of the valve.
- FIG. 9 shows the steady state of ejection operation.
- FIG. 10(A) is a side cross-sectional view enlarging a part of the valve according to the fourth embodiment
- FIG. 10(B) is a diagram showing the gas flow during the operation of discharging the gas from the cuff. There is, and it is side sectional drawing which expanded a part of valve
- FIG. 10(B) shows the steady state of the ejection operation.
- the fluid control device 10C according to the fourth embodiment differs from the fluid control device 10B according to the third embodiment in the configuration of the valve 11C. .
- the rest of the configuration of the fluid control device 10C is the same as that of the fluid control device 10B, and the description of the similar portions will be omitted.
- the film 80C in the figure is the same as the film 80B
- the holding plate 90C is the same as the holding plate 90B, so detailed description of each will be omitted.
- the valve 11C has a flat plate 41C.
- the flat plate 41C includes a support member 420C.
- Support member 420C is formed within hole 400 .
- 420 C of support members are the same shape as the support member 420 of the valve
- the end surface of the support member 420C on the pump chamber side is arranged on the inner side of the hole 400 with respect to the tip end surface 411 of the projecting portion 410 .
- the depth of penetration of the membrane 80C into the hole 400 can be set to a desired amount. As a result, it is possible to improve the responsiveness of deformation of the membrane 80C to the flow of gas and realize a predetermined discharge speed.
- FIG. 11A is an enlarged side cross-sectional view of a portion of the valve according to the fifth embodiment
- FIG. FIG. 11(C) is a diagram showing the flow of gas during the operation of discharging gas from the cuff, and is a side cross-sectional view enlarging a part of the valve.
- FIG. 11(C) shows the steady state of the ejection operation.
- the fluid control device 10D according to the fifth embodiment has, in contrast to the fluid control device 10A according to the second embodiment, The difference is in the configuration of the valve 11D.
- the rest of the configuration of the fluid control device 10D is the same as that of the fluid control device 10A, and the description of the similar portions will be omitted.
- the film 80D in the figure is the same as the film 80A
- the holding plate 90D is the same as the holding plate 90A, so detailed description of each will be omitted.
- the valve 11D has a flat plate 41D.
- the flat plate 41D has a communication hole 430. As shown in FIG. One opening of the communication hole 430 overlaps the opening portion 900 in a plan view of the valve 11D. The other opening in communicating hole 430 overlaps hole 910 . In other words, in plan view, the communication hole 430 is formed in the flat plate 41D so as to straddle the portion between the opening 900 and the hole 910 in the holding plate 90D.
- the housing member having the flat plate 41D has a low side wall height, and the film 80D abuts on the main surface of the flat plate 41D on the pump chamber side in a static state in which no gas flow occurs.
- the membrane 80D closes the hole 790 and communicates the communication hole 430 with the valve chamber, as shown in FIG. 11(B).
- the valve 11D allows the gas to flow into the valve 11D from the hole 400 and is discharged to the cuff 2 through the communication hole 430, the holes 910, the holes 710, and the holes 700.
- the membrane 80D closes the hole 400 and communicates the hole 790 with the valve chamber, as shown in FIG. 11(C).
- the valve 11D discharges the gas from the cuff 2 to the outside of the valve 11D through the holes 700, 710, and 790.
- the valve 11D can suppress vibration of the membrane 80D.
- FIG. 12 is a schematic side sectional view showing the configuration of the fluid control device according to the sixth embodiment.
- the fluid control device 10E according to the sixth embodiment differs from the fluid control device 10 according to the first embodiment in the configuration of the valve 11E.
- the rest of the configuration of the fluid control device 10E is the same as that of the fluid control device 10, and the description of the similar portions will be omitted.
- the fluid control device 10E includes a valve 11E.
- the valve 11E has a retainer plate 90E.
- the holding plate 90E is, for example, annular.
- a retainer plate 90E holds the outer edge of the membrane 80 .
- the holding plate 90E is fixed to the flat plate 41 of the housing member 40 .
- the holding plate 90E is fixed so that the membrane 80 overlaps the holes 400 and 790 in plan view of the valve 11E.
- the valve 11E can suppress vibration of the membrane 80 in the same manner as the valve 11. That is, even if membrane 80 is fixed to member 40 for cases, and even if it is fixed to member 70 for cases, vibration of membrane 80 can be controlled.
- FIG. 13 is a schematic side sectional view showing the configuration of the fluid control device according to the seventh embodiment.
- the fluid control device 10F according to the seventh embodiment differs from the fluid control device 10A according to the second embodiment in the configuration of the valve 11F.
- the rest of the configuration of the fluid control device 10F is the same as that of the fluid control device 10A, and the description of the similar portions will be omitted.
- the film 80F has the same structure as the film 80A, and a detailed description thereof will be omitted.
- the fluid control device 10F includes a valve 11F.
- the valve 11F has a retaining plate 90F.
- the holding plate 90F is, for example, annular.
- a retaining plate 90F holds the outer edge of the membrane 80F.
- the holding plate 90F is fixed to the flat plate 41 of the housing member 40 .
- the holding plate 90F is fixed so that the membrane 80 overlaps the holes 400 and 790 in plan view of the valve 11F.
- a hole 910F is formed in the holding plate 90F.
- the hole 910F penetrates between the inner surface and the outer surface of the retaining plate 90F.
- the valve 11F can suppress vibration of the membrane 80F in the same manner as the valve 11A. That is, even if membrane 80F is fixed to member 40 for cases, and it is fixed to member 70 for cases, vibration of membrane 80F can be controlled.
- FIG. 14 is a schematic side sectional view showing the configuration of the fluid control device according to the eighth embodiment.
- the fluid control device 10G according to the eighth embodiment differs from the fluid control device 10A according to the second embodiment in the configuration of the valve 11G.
- the rest of the configuration of the fluid control device 10G is the same as that of the fluid control device 10A, and the description of the similar portions will be omitted.
- the fluid control device 10G includes a valve 11G.
- the valve 11G has a configuration in which a plurality of functional units of the valve 11 are arranged in parallel.
- the valve 11G includes a housing member 40G, a housing member 70G, a membrane 80G1, a membrane 80G2, and a holding plate 90G.
- the housing member 40G has a flat plate 41 with a hole 400G1 and a hole 400G2.
- the holes 400G1 and 400G2 are separated from each other.
- the housing member 70G has a hole 700G, a hole 710G, a hole 790G1, and a hole 790G2.
- the holes 700G and the holes 710G are formed in the central area of the housing member 70G in plan view.
- Hole 790G1 and hole 790G2 are formed at positions sandwiching hole 700G and hole 710G.
- the hole 790G1 overlaps the hole 400G1, and the hole 790G2 overlaps the hole 400G2.
- the holding plate 90G has an opening 900G1, an opening 900G2, and a hole 910G.
- the hole 910G is formed in the center of the holding plate 90G in plan view. Planar view of the valve
- the opening portion 900G1 and the opening portion 900G2 are formed at positions sandwiching the hole 910G.
- the opening portion 900G1 overlaps the hole 400G1 and the hole 790G1, and overlaps a part of the hole 710G.
- the opening portion 900G2 overlaps the hole 400G2 and the hole 790G2, and overlaps a part of the hole 710G.
- the film 80G1 is held by the holding plate 90G so as to cover the opening 900G1.
- the membrane 80G1 overlaps the hole 400G1 and the hole 790G1.
- the film 80G2 is held by the holding plate 90G so as to cover the opening 900G2. As a result, when the valve 11G is viewed from above, the film 80G2 overlaps the hole 400G2 and the hole 790G2.
- a hole 800G is formed between the film 80G1 and the film 80G2.
- the hole 800G overlaps the hole 910G. This allows the hole 910G and the hole 800G to communicate with each other.
- valve 11G can suppress vibration of the membranes 80G1 and 80G2.
- a first valve function including hole 400G1, hole 790G1 and membrane 80G1 and a second valve function including hole 400G2, hole 790G2 and membrane 80G2 are combined with pump 12 and hole 700G. Prepare in parallel between As a result, even if one of the first valve function part and the second valve function part fails or is damaged, the rectifying function can be maintained.
- FIG. 15 is a schematic side sectional view showing the configuration of the fluid control device according to the ninth embodiment.
- the fluid control device 10H according to the ninth embodiment differs from the fluid control device 10 according to the first embodiment in that it includes a valve 11H.
- the valve 11H differs from the valve 11 according to the first embodiment in that the holding plate 90 is omitted.
- the valve 11H includes a housing member 70H.
- the outer edge of the membrane 80 is fixed and held on the surface of the housing member 70H on the valve chamber side.
- valve 11H of the fluid control device 10H can achieve the same effect as the valve 11 of the fluid control device 10.
- 16(A) and 16(B) are diagrams showing derived examples of the positional relationship between the hole communicating with the pump, the gas discharge hole, and the membrane.
- 16(A) and 16(B) are side cross-sectional views in which a part is enlarged as an example of the valve according to the second embodiment.
- the hole 400 and the hole 790 preferably overlap at least partially, more preferably completely overlap as in the above-described second embodiment.
- the shape of the membrane 80A may be circular, polygonal, or any other shape, but it is preferable that the hole 400 and the hole 790 overlap in the center of the deformable region.
- the fluid control device configured as described above is applied to, for example, a pressure device.
- the pressurizing device includes a fluid control device having any of the configurations described above and a cuff 2 that communicates with the hole 700 (see FIG. 2). By causing the gas to flow into the cuff 2 from the fluid control device, pressure can be applied to the human body or the like in contact with the cuff 2 .
- a pressurizing device can be applied to a sphygmomanometer.
- a sphygmomanometer includes the pressurizing device described above and a measurement unit that measures blood pressure from the pressure applied by the cuff.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Reciprocating Pumps (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Fluid-Pressure Circuits (AREA)
- Valve Housings (AREA)
Abstract
Description
本発明の第1の実施形態に係るバルブおよび流体制御装置について、図を参照して説明する。図1は、第1の実施形態に係る流体制御装置の構成を示す概略的な側面断面図である。図2は、第1の実施形態に係る流体制御装置にカフを装着した状態を示す図である。本実施形態を含む各実施形態において、各図では、バルブおよび流体制御装置の構成を分かり易くするため、それぞれの構成要素の形状を部分的または全体として誇張して記載している。また、以下では、流体として気体(例えば空気)を用いる態様を示すが、例えば液体であっても本願発明の構成を適用できる。
図3(A)は、第1の実施形態に係るバルブの一部を拡大した側面断面図であり、図3(B)は、各孔と膜との関係を示す透視平面図である。以下、図1、図2、図3(A)、図3(B)を参照して、バルブ11の具体的な構成を説明する。
上述の構成からなるバルブ11は、次に示すように、カフ2への気体の供給動作、カフ2からの気体の排出動作を実現する。
図4は、カフへの気体の供給動作時の気体の流れを示す図であり、バルブの一部を拡大した側面断面図である。
図5(A)、図5(B)は、カフからの気体の排出動作時の気体の流れを示す図であり、バルブの一部を拡大した側面断面図である。図5(A)は、排出の過渡状態(初期状態)を示し、図5(B)は、排出の定常状態を示す。
図5(A)に示すように、過渡状態において、第2空間内に流入した気体の一部は、膜80を筐体用部材40側に押す。これにより、膜80は、筐体用部材70のポンプ室側の壁面から離れる。そして、孔790は第2空間に連通する。
図1、図2に示すように、ポンプ12は、主平板21、枠体22、連結部材23、圧電素子30、筐体用部材40の平板41、側壁部材50、および、蓋部材60を備える。筐体用部材40の平板41は、バルブ11とポンプ12とで共有されている。
本発明の第2の実施形態に係るバルブおよび流体制御装置について、図を参照して説明する。
本発明の第3の実施形態に係るバルブおよび流体制御装置について、図を参照して説明する。
本発明の第4の実施形態に係るバルブおよび流体制御装置について、図を参照して説明する。
本発明の第5の実施形態に係るバルブおよび流体制御装置について、図を参照して説明する。
本発明の第6の実施形態に係るバルブおよび流体制御装置について、図を参照して説明する。
本発明の第7の実施形態に係るバルブおよび流体制御装置について、図を参照して説明する。
本発明の第8の実施形態に係るバルブおよび流体制御装置について、図を参照して説明する。
本発明の第9の実施形態に係るバルブおよび流体制御装置について、図を参照して説明する。
図16(A)、図16(B)は、ポンプに連通する孔、気体排出用の孔、膜との位置関係の派生例を示す図である。図16(A)、図16(B)は、第2の実施形態に係るバルブを例として一部を拡大した側面断面図である。
上述の構成からなる流体制御装置は、例えば、加圧装置に適用される。加圧装置は、上述のいずれかの構成の流体制御装置と、孔700に連通するカフ2とを備える(図2参照)。流体制御装置からカフ2に気体を流入させることで、カフ2に当接する人体等に圧力を加えることができる。
11、11A、11B、11C、11D、11E、11F、11G、11H:バルブ
12:ポンプ
21:主平板
22:枠体
23:連結部材
30:圧電素子
40、40G:筐体用部材
41:平板
42:側壁
50:側壁部材
60:蓋部材
70、70G、70H:筐体用部材
80、80A、80B、80C、80D、80F、80G1、80G2:膜
90、90A、90B、90C、90D、90E、90F、90G:保持板
400、400G1、400G2:孔
420、420C:支持部材
700、700G:孔
710、710G:孔
790、790G1、790G2:孔
800、800G:孔
900、900G1、900G2:開孔面
910、910G:孔
2:カフ
Claims (13)
- 外部のポンプに連通可能な第1孔を有する第1壁、流体の吐出対象部品に連通可能な第2孔を有する第2壁、および、互いに対向する前記第1壁および前記第2壁によって挟まれるバルブ室を有する筐体と、
前記バルブ室を前記第1壁側の空間と前記第2壁側の空間に分ける膜と、
前記第1壁側の空間と前記第2壁側の空間とを連通する連通路と、
を備え、
前記第2壁は、前記筐体の外部に連通可能であり、前記流体を前記バルブ室から排出可能な第3孔を有し、
前記第1壁、前記膜、および、前記第2壁が並ぶ前記筐体の第1方向に視て、
前記膜、前記第1孔のバルブ室側の開孔面、前記第3孔のバルブ室側の開孔面は、重なり、
かつ、前記連通路は、前記第1孔のバルブ室側の開孔面と前記第3孔のバルブ室側の開孔面と重ならず、
かつ、前記第1孔のバルブ室側の開孔面と前記第3孔のバルブ室側の開孔面とは、少なくとも一部において重なっている、
バルブ。 - 前記第1方向に視て、前記第1孔のバルブ室側の開孔面と前記第3孔のバルブ室側の開孔面とは、大きい方の孔の開孔面の範囲内に小さい方の孔が位置する、
請求項1に記載のバルブ。 - 前記第2孔は、前記筐体の外部に連通する第1部分と、前記第2壁側の空間に連通する第2部分と、を備え、
前記第1方向に視て、前記第2部分は前記第1部分のよりも大きく、前記第1部分は前記第2部分に重なっている、
請求項1または請求項2に記載のバルブ。 - 前記第1壁は、前記第2壁側へ突出する突出部を備え、
前記第1孔は、前記突出部に形成されている、
請求項1乃至請求項3のいずれかに記載のバルブ。 - 前記第1方向に視て、前記バルブ室の外端から内側に延び、前記膜を保持する保持板を備え、
前記連通路は、前記保持板に形成されている、
請求項1乃至請求項4のいずれかに記載のバルブ。 - 前記連通路は、前記膜に形成されている、
請求項1乃至請求項4のいずれかに記載のバルブ。 - 前記第1孔内に形成された支持部材を備える、
請求項1乃至請求項6のいずれかに記載のバルブ。 - 前記支持部材の端面は、前記第1孔の前記バルブ室側の開孔面に面一である、
請求項7に記載のバルブ。 - 前記支持部材の端面は、前記第1孔の前記バルブ室側の開孔面よりも前記第1孔の内部側にある、
請求項7に記載のバルブ。 - 前記第1孔、前記第2孔、および、前記膜は、それぞれ複数備えられている、
請求項1乃至請求項9のいずれかに記載のバルブ。 - 請求項1乃至請求項10のいずれかに記載のバルブと、
前記第1壁を共有し、前記第1孔に連通するポンプ室を有する前記ポンプと、
を備える、流体制御装置。 - 請求項10に記載の流体制御装置と、
前記第2孔に連通するカフと、
を備える加圧装置。 - 請求項11に記載の加圧装置と、
前記カフによる圧力から血圧を測定する測定部と、
を備える、血圧計。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280032656.4A CN117280149A (zh) | 2021-05-06 | 2022-04-22 | 阀、流体控制装置、加压装置以及血压计 |
JP2023518663A JPWO2022234778A1 (ja) | 2021-05-06 | 2022-04-22 | |
US18/496,385 US20240052933A1 (en) | 2021-05-06 | 2023-10-27 | Valve, fluid control device, pressurizing device, and sphygmomanometer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-078258 | 2021-05-06 | ||
JP2021078258 | 2021-05-06 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/496,385 Continuation US20240052933A1 (en) | 2021-05-06 | 2023-10-27 | Valve, fluid control device, pressurizing device, and sphygmomanometer |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022234778A1 true WO2022234778A1 (ja) | 2022-11-10 |
Family
ID=83932427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/018531 WO2022234778A1 (ja) | 2021-05-06 | 2022-04-22 | バルブ、流体制御装置、加圧装置、および、血圧計 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240052933A1 (ja) |
JP (1) | JPWO2022234778A1 (ja) |
CN (1) | CN117280149A (ja) |
TW (1) | TWI810920B (ja) |
WO (1) | WO2022234778A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220275872A1 (en) * | 2018-10-22 | 2022-09-01 | Murata Manufacturing Co., Ltd. | Valve and gas control device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4513766A (en) * | 1981-02-13 | 1985-04-30 | Seaborne Thomas L | Vacuum pulsator valves |
JPS62141610U (ja) * | 1986-02-28 | 1987-09-07 | ||
JPH027196A (ja) * | 1988-06-27 | 1990-01-11 | Nohmi Bosai Ltd | 差動式スポット型感知器及びその製造方法 |
JP3096050U (ja) * | 2003-02-24 | 2003-08-29 | 力揮企業有限公司 | ダイアフラムバルブの構造改良 |
JP2020153404A (ja) * | 2019-03-19 | 2020-09-24 | 群馬県 | 流体制御弁 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11084031B1 (en) * | 2019-02-19 | 2021-08-10 | Facebook Technologies, Llc | Methods of fabricating microfluidic valves and systems |
TWI722812B (zh) * | 2019-10-31 | 2021-03-21 | 研能科技股份有限公司 | 血壓量測模組 |
-
2022
- 2022-04-22 JP JP2023518663A patent/JPWO2022234778A1/ja active Pending
- 2022-04-22 CN CN202280032656.4A patent/CN117280149A/zh active Pending
- 2022-04-22 WO PCT/JP2022/018531 patent/WO2022234778A1/ja active Application Filing
- 2022-04-29 TW TW111116393A patent/TWI810920B/zh active
-
2023
- 2023-10-27 US US18/496,385 patent/US20240052933A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4513766A (en) * | 1981-02-13 | 1985-04-30 | Seaborne Thomas L | Vacuum pulsator valves |
JPS62141610U (ja) * | 1986-02-28 | 1987-09-07 | ||
JPH027196A (ja) * | 1988-06-27 | 1990-01-11 | Nohmi Bosai Ltd | 差動式スポット型感知器及びその製造方法 |
JP3096050U (ja) * | 2003-02-24 | 2003-08-29 | 力揮企業有限公司 | ダイアフラムバルブの構造改良 |
JP2020153404A (ja) * | 2019-03-19 | 2020-09-24 | 群馬県 | 流体制御弁 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220275872A1 (en) * | 2018-10-22 | 2022-09-01 | Murata Manufacturing Co., Ltd. | Valve and gas control device |
US11686396B2 (en) * | 2018-10-22 | 2023-06-27 | Murata Manufacturing Co., Ltd. | Valve and gas control device |
Also Published As
Publication number | Publication date |
---|---|
JPWO2022234778A1 (ja) | 2022-11-10 |
TW202247817A (zh) | 2022-12-16 |
TWI810920B (zh) | 2023-08-01 |
CN117280149A (zh) | 2023-12-22 |
US20240052933A1 (en) | 2024-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10502328B2 (en) | Valve and fluid control appratus | |
US9482221B2 (en) | Gas control apparatus | |
JP5185475B2 (ja) | バルブ、流体制御装置 | |
KR20190082732A (ko) | 소형 유체 제어 장치 | |
US11293427B2 (en) | Valve, and fluid control device including valve | |
US8205640B2 (en) | Check valve, fluid device, and pump | |
JP5731576B2 (ja) | 急排弁構造体およびダイヤフラムポンプ | |
JPWO2018021099A1 (ja) | バルブ、気体制御装置、及び血圧計 | |
EP2985465B1 (en) | Diaphragm pump integrally including quick discharge valve unit | |
WO2022234778A1 (ja) | バルブ、流体制御装置、加圧装置、および、血圧計 | |
JP5668582B2 (ja) | 流体制御装置 | |
JP6288395B1 (ja) | バルブ、流体制御装置および血圧計 | |
JP2002130137A (ja) | 圧電ポンプ | |
JPWO2022234778A5 (ja) | ||
JP7216367B2 (ja) | ダイヤフラムポンプ | |
JP6293028B2 (ja) | 逆止弁機構およびそれを用いたポンプ装置 | |
WO2023167284A1 (ja) | バルブ、および、流体制御装置 | |
CN116783387A (zh) | 加压装置 | |
JP2005307876A (ja) | ダイアフラムポンプ | |
JP2023126989A (ja) | ポンプ及び流体制御装置 | |
WO2012140932A1 (ja) | アクティブバルブ、流体制御装置 | |
JP2009108967A (ja) | 逆止弁 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22798884 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023518663 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280032656.4 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22798884 Country of ref document: EP Kind code of ref document: A1 |