CN104523257A - Integrated pump valve module - Google Patents
Integrated pump valve module Download PDFInfo
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- CN104523257A CN104523257A CN201410801287.8A CN201410801287A CN104523257A CN 104523257 A CN104523257 A CN 104523257A CN 201410801287 A CN201410801287 A CN 201410801287A CN 104523257 A CN104523257 A CN 104523257A
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- upper cover
- pump
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Abstract
The invention discloses an integrated pump valve module. The integrated pump valve module comprises a booster pump, an air vent valve, an air outlet and an upper cover. The air outlet and the air vent valve are arranged on the upper cover. An airflow channel is formed in the upper cover and communicated with the booster pump, the air vent valve and the air outlet. The air vent valve is a solenoid valve. The bottom of the upper cover is provided with a plurality of annular grooves. The annular grooves are open downwards. The inner side faces of the annular grooves are in close fit with the upper ends of pistons in the booster pump. The opposite sides of the annular grooves are directly communicated with an opening in the top end of the upper cover at the bottom ends of the grooves. The opening is located below the air vent valve. The bottom end of the side, away from the other annular grooves, of one annular groove is directly communicated with the air outlet, so that the airflow channel is formed in the upper cover. The integrated pump valve module has the advantages that the structure is intensive, the size is small, parts are reasonable in design, the manufacturing cost is low, and can be applied to the fields such as sphygmomanometers and massage devices.
Description
Technical field
The present invention relates to for the pump valve in sphygomanometer, massage device etc., particularly relate to a kind of small and exquisite, one pump valve module that parts are intensive.
Background technology
Electric sphygmomanometer in the market, the assembly that one of its vitals is pressure air pump, fast vent valve, slow vent valve are formed, need between them to adopt complicated rubber hose, threeway or four-way connection to be connected, volume is larger.Needing flexible pipe to be folded into specified angle when assembling said modules, if assembly operator operation is careless, bends excessive, flexible pipe will be caused to close, affect the performance of electric sphygmomanometer, and assembling said modules needs to spend more man-hour, labor intensity is large.
Chinese patent literature CN103767695A(publication date: 2014.05.07) disclose a kind of integrated air pump, pressure air pump is provided with the vent valve of pure machinery; Pressure transducer and cuff are arranged on the gas outlet of integrated air pump, are connected by threeway, and when electric sphygmomanometer starts to measure, integrated air pump starts pressurization, and the gas vent of integrated air pump is inaccessible, and Compressed Gas enters cuff and sensor, until record blood pressure indicating value; Subsequently, integrated air pump stops pressurization, and the gas vent of integrated air pump is opened, fast by the Compressed Gas release in cuff.The technical problem that modular construction is complicated, volume is excessive that although this integrated air pump can solve pressure air pump in prior art, fast vent valve is formed, it lacks slow vent valve, is therefore only applicable to gas metering system; Measuring process needs integrated air pump to pressurize always, thus causes the air-flow in measuring process in cuff unstable, causes the accuracy of measurement data to be difficult to ensure; The regular distortion of elastomer in vent valve had both easily caused its sclerosis and the lost of life, there is again the problem that sealing and reliability are difficult to ensure.
In sum, a kind of volume of sphygomanometer market in urgent need is little, cost is low, the one pump valve module being applicable to gas measurement and therapeutic method to keep the adverse QI flowing downwards measurement of good stability.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention aims to provide a kind of one pump valve module, and its structure is intensive, volume is little, parts design is reasonable, and cost is low.
One pump valve module of the present invention, comprises force (forcing) pump, vent valve, gas outlet and upper cover, described gas outlet and vent valve be arranged on described on cover, be provided with gas channel in described upper cover, described gas channel is communicated with force (forcing) pump, vent valve and gas outlet; Described vent valve is electromagnetic valve; Multiple annular groove is comprised bottom described upper cover, described annular groove opens wide downwards, piston upper end in the medial surface of described annular groove and described force (forcing) pump is closely sealed, side is in groove bottom directly and the opening in communication on upper cover top in opposite directions for multiple annular groove, described opening is positioned at below described vent valve, one of them annular groove is directly connected with described gas outlet in the groove bottom of the side away from other annular groove, forms the gas channel in described upper cover thus.
Described force (forcing) pump comprises piston component and driving mechanism; Described driving mechanism comprises motor, drive and rocking arm; Described drive is fixed on the rotating shaft of motor, eccentric setting one inclined hole on described drive; Described rocking arm bottom is rocker arm shaft, and middle part is rocking lever, and rocking lever two ends are provided with plush copper; Described plush copper is connected with the bottom of described piston component, and plush copper center is provided with air inlet, for piston component inhale fresh air; The rocker arm shaft of described rocking arm, rocking lever and plush copper are formed in one; Preferably, described rocking arm adopts POM one-body molded.
Described piston component comprises piston, piston holder; Described piston to be arranged on piston holder and to match with described rocking arm, the annular groove medial surface of piston upper end and described upper cover is closely sealed, to form the air bleeding valve of one-way gas exhaust, piston base has crescent valve block, described crescent valve block is fitted in the air inlet end face of rocking arm, to form the intake valve of one-way air inlet structure; Described driving mechanism, by motor outputting power, drives the motion of rocking arm reciprocating swing, thus drives piston to pump, and delivery air is also entered in the gas channel of upper cover by air bleeding valve, or enters piston from intake valve inhale fresh air.
As further remodeling of the present invention, described one pump valve module also comprises a shell, described shell is fixed on described driving mechanism, described piston holder is installed on the housing, and described shell has at least two grabs protruded upward, described upper cover to be engaged with described shell by grab thus is tightened to one.
Described vent valve comprises holder, coil, end cap, described holder be fixed on described on cover, the ring heart of holder forms the bleed passage of vent valve, described coil viscose glue is wrapped in described holder, described end cap adopt rubber and sheet metal one-body molded, at least cover described bleed passage mouth, when the coil is energized, end cap downward bending is driven, closely closed described bleed passage mouth under the electromagnetic field effect that described sheet metal produces at coil.Described coil is self-adhesion coil, and viscose glue is wrapped in described holder; The material of described holder is soft iron, and described sheet metal is for having ferromagnetic stainless steel materials.Described coil energising terminal punching be inserted in described on cover.
As further remodeling of the present invention, described one pump valve module also comprises slow vent valve, described slow vent valve be arranged on described on cover, the described gas channel of slow vent valve communicates with the gas channel in upper cover.Preferably, described slow vent valve is made up of core print seat, glue core and copper core, wherein, core print seat has the gaseous core chamber passed through for gas, described gaseous core chamber communicates with the gas channel in upper cover, glue core is placed in described gaseous core chamber, one end open is closed in described glue core one end, the opening of described glue core and core print seat end interference fit, the sidewall of described glue core there is otch, described otch is 2mm-3mm in glue core diameter length upwards, copper core be placed in described glue core and with glue core interference fit, the equal opening in described copper core two ends, wherein one end is positioned at the incision of described glue core, the other end is positioned at the opening of glue core, form the gas channel of slow vent valve thus.
As further remodeling of the present invention, the gas outlet of described one pump valve module is also connected with a threeway component.
Adopt one pump valve module provided by the invention, eliminate the use of a large amount of rubber tube, threeway or four-way assembly, structure is intensive, volume is little, and parts design is reasonable, low cost of manufacture.Vent valve adopts the end cap composition of self-adhesion coil, holder and containing metal sheet, greatly reduces the volume of vent valve, also can meet the requirement of deadend bleed passage mouth; Adopt the integrated rocking arm of POM of rigidity and excellent in abrasion resistance, easy for installation, structure is more firm; Adopt the mode that snap fit is fastening, the requirement of sealing can be met, also make preparation technology simpler; Slow vent valve and threeway component are arranged on and cover, make described one pump valve modular structure more intensive, can realize the function of fast venting and slow venting, when it is applied to sphygomanometer, the design of the slow vent valve of the present invention makes measurement result more accurate simultaneously.
Accompanying drawing explanation
Fig. 1 is one pump valve modular structure schematic diagram of the present invention;
Fig. 2 is one pump valve modular structure explosive view of the present invention;
Fig. 3 is the sectional view of one pump valve module of the present invention;
Fig. 4 is upper cover enlarged drawing of the present invention;
Fig. 5 is upper cover A-A face of the present invention sectional view;
Fig. 6 (a) is rocker structure schematic diagram of the present invention, and Fig. 6 (b) is rocking arm top view of the present invention;
Fig. 7 is end cap enlarged drawing of the present invention;
Fig. 8 is glue core enlarged drawing of the present invention.
Detailed description of the invention
Now the present invention will be described in detail by reference to the accompanying drawings.
embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, integrated pump valve of the present invention comprises force (forcing) pump 1, vent valve 2, gas outlet 3 and upper cover 4, and wherein gas outlet 3 and vent valve 2 are all arranged on upper cover 4.Vent valve 2 is electromagnetic valve.Two annular grooves 41,42 are comprised bottom upper cover 4, annular groove 41,42 opens wide downwards, piston upper end 1121 in the medial surface of two annular grooves 41,42 and described force (forcing) pump 1 is closely sealed, two annular grooves 41,42 are directly connected with the opening 44 on upper cover top in groove bottom side 43 in opposite directions, described opening 44 is positioned at below described vent valve 2, one of them annular groove 41 is directly connected with gas outlet 3 in the groove bottom of the side 45 away from other annular groove 42, form the gas channel in described upper cover 4 thus, as shown in Figure 4 and Figure 5.
Force (forcing) pump 1 comprises: piston component and drives structure, and piston component comprises piston 112, piston holder 111, and driving mechanism comprises: motor 121, drive 122, rocking arm 123.
The concrete connected mode of driving mechanism is: drive 122 is fixed on the rotating shaft 1211 of motor 121, eccentric setting one inclined hole 1221 on described drive 122.Rocking arm 123 bottom is rocker arm shaft 1231, middle part is rocking lever 1232, and rocking lever two ends are provided with plush copper 1233, and plush copper 1233 is connected with piston base 1122, its center is provided with air inlet 1234 and corresponding with the crescent valve block of described piston base 1122, for piston inhale fresh air.The rocker arm shaft 1231 of rocking arm 123, rocking lever 1232 and plush copper 1233 adopt POM one-body molded, as shown in Fig. 6 (a), 6 (b).
The concrete connected mode of piston component is: described piston 112 is arranged on piston holder 111, piston upper end 1121 is closely sealed with the medial surface of the annular groove 41 of upper cover 4, to form the air bleeding valve of one-way gas exhaust, piston base 1122 has crescent valve block, described crescent valve block is fitted in air inlet 1234 end face of rocking arm 123, to form the intake valve of one-way air inlet structure.
Motor 121 is also fixed with shell 124, and fixed form is adopt screw 125 to be fixed in the screwed hole 1212 on motor 121.Piston holder 111 is arranged on shell 124, and shell 124 has at least two hooks protruded upward 1241, and shell 124 to be engaged with upper cover 4 by hook 1241 thus is tightened to one.
Wherein, the function of pressures partially is as follows: motor 121 is pumping of piston 112 by being fixed on rocking arm 123 on its rotating shaft 1211 by the converting rotary motion of motor 121.Particularly, the drive 122 that rotarily drives of motor 121 rotates centered by the center of motor 121, and rocker arm shaft 1231 drives rocking lever 1232 to do seesaw and moves up and down, thus drives piston 112 to pump.When piston 112 down moves, air enters piston by the crescent valve block of air inlet 1234 and piston base 1122; When piston 112 up moves, the air in piston 112 is by upper piston area 1121 spreading, and make it the medial surface departing from annular groove 41, air flows into the gas channel of upper cover 4 along the space between the medial surface and upper piston area 1121 of annular groove 41.
Vent valve 2 mainly comprises holder 21, coil 22, end cap 23, is fixed on by holder 21 on upper cover 4, preferably adopts sealing good and caking property is strong glue is fixed.The material of holder 21 is soft iron.The opening 44 on the fixing corresponding upper cover top of the seat ring heart 211, makes the fixing seat ring heart 211 be connected with the gas channel in upper cover 4, and the fixing seat ring heart 211 forms bleed passage.The other end of the fixing seat ring heart 211 is coated with an end cap 23, this end cap 23 adopt rubber 231 and sheet metal 232 one-body molded, this sheet metal 232 preferably adopts has ferromagnetic 430 corrosion resistant plates.One end 234 of end cap 23 is fixed on upper cover 4, preferably adopts the strong glue of caking property to fix.Be wrapped in holder 21 by coil 22 viscose glue, this coil 22 preferably adopts self-adhesion coil, and what it can be firm is bonded together, not easily loose, and can reduce the volume of coil 22.The punching of the energising terminal 221 of coil 22 is inserted in upper cover 4, then the two ends of coil 22 is fixed on energising terminal 221.Due to electromagnetic induction principle, the magnetic field that after energising, coil 22 produces by the sheet metal 232 in adhesive end cap 23, thus drives the tight adhesive of whole end cap 23 and shutoff bleed passage mouth 211.Preferably, this sheet metal 232 is ring-type, and its external diameter is more than or equal to the external diameter of holder 21.The center of sheet metal is embedded with sheet rubber 231, and the external diameter of described sheet rubber 231 is more than or equal to the diameter of bleed passage mouth 211.The rubber strip 233 be connected with sheet rubber 231 stretches out on sheet metal 232, is connected, for fixing metal sheet 232 with the sheet rubber 234 of an occlusion sheet metal 232 periphery part.Sheet rubber 234 is fixed on upper cover 4, and the mode of being fixedly connected with is that viscose glue connects, as shown in Figure 7.
The function of air bleeding portion is as follows: be energized first to coil 22, make end cap 23 tight closure bleed passage mouth 211, then force (forcing) pump 1 starts pressurization, gas moves in the gas channel of upper cover 4, by gas outlet 3 for extraneous instrument such as sphygomanometer or massage device provide air pressure, when extraneous instrument work complete needs venting time, disconnect the power supply of coil 22, end cap 23 is not owing to having the suction-combining force, and the gases at high pressure in upper cover 4 gas channel will wash end cap 23 open, realizes exitting fast.
embodiment 2
On the basis of embodiment 1, be also provided with slow vent valve 5 in upper cover 4 side near gas outlet 3, the gas channel of slow vent valve 5 communicates with upper cover 4 gas channel.This slow vent valve 5 can be the aperture often opened be arranged on upper cover 4, also following structure can be adopted: slow vent valve 5 is by core print seat 51, glue core 52 and copper core 53 form, core print seat 51 has the gaseous core chamber passed through for gas, gaseous core chamber communicates with the gas channel in upper cover, glue core 52 is placed in described gaseous core chamber, one end open is closed in glue core 52 one end, the opening of described glue core 52 and core print seat 51 end interference fit, the sidewall of glue core 51 there is otch 54, the length of described otch 54 in glue core 52 radial direction is 2mm-3mm, copper core 53 be placed in glue core 52 and with glue core 52 interference fit, the equal opening in described copper core 53 two ends, wherein one end is positioned at otch 54 place, the other end is positioned at the opening of glue core 52, form the gas channel of slow vent valve 5 thus.Wherein, glue core 52 adopts shore hardness to be the silica gel of 30-40, and optimum selection shore hardness is the silica gel of 35.The gradient of one 2 degree is axially had, as shown in Figure 8 at glue core 52.Adopt such design, the linear deflation of one pump valve module can be realized.
Connect a threeway component 6 at gas outlet 3 place of one pump valve module, provide source of the gas for outwardly instrument.
One pump valve module in the present embodiment is used in sphygomanometer, carries out blood pressure measurement.
The cuff of sphygomanometer is connected with threeway component 6 with pressure transducer.Concrete action is as follows: be energized first to coil 22, make end cap 23 tight closure bleed passage mouth 211, then force (forcing) pump 1 starts pressurization, and air is moved to gas outlet 3 by the gas channel of upper cover 4, and gives cuff and pressure transducer air feed through threeway component 6, exert pressure.When pressure rises to certain value, stop pressurization, slow vent valve 5 starts slowly to exit with certain speed, sphygomanometer start measure, when detect systolic pressure, mean pressure and diastolic pressure time, coil 22 power-off, air in upper cover 3 under high pressure washes end cap 23 open, discharges fast.Thus, the measurement of a blood pressure is completed.
Above electric sphygmomanometer has that structure is intensive, volume is little, parts design is reasonable, the advantage of low cost of manufacture, is applicable to batch production.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (10)
1. the invention discloses a kind of one pump valve module, comprise force (forcing) pump, vent valve, gas outlet and upper cover, described gas outlet and vent valve be arranged on described on cover, gas channel is provided with in described upper cover, described gas channel is communicated with force (forcing) pump, vent valve and gas outlet, it is characterized by: described vent valve is electromagnetic valve; Multiple annular groove is comprised bottom described upper cover, described annular groove opens wide downwards, piston upper end in the medial surface of described annular groove and described force (forcing) pump is closely sealed, side is in groove bottom directly and the opening in communication on upper cover top in opposite directions for multiple annular groove, described opening is positioned at below described vent valve, one of them annular groove is directly connected with described gas outlet in the groove bottom of the side away from other annular groove, forms the gas channel in described upper cover thus.
2. one pump valve module according to claim 1, is characterized in that: described force (forcing) pump comprises piston component and driving mechanism; Described driving mechanism comprises motor, drive and rocking arm; Described drive is fixed on the rotating shaft of motor, eccentric setting one inclined hole on described drive; Described rocking arm bottom is rocker arm shaft, and middle part is rocking lever, and rocking lever two ends are provided with plush copper; Described plush copper is connected with the bottom of described piston component, and plush copper center is provided with air inlet, for piston component inhale fresh air; The rocker arm shaft of described rocking arm, rocking lever and plush copper are formed in one.
3. one pump valve module according to claim 2, is characterized in that: described piston component comprises piston, piston holder; Described piston to be arranged on piston holder and to match with described rocking arm, the annular groove medial surface of piston upper end and described upper cover is closely sealed, to form the air bleeding valve of one-way gas exhaust, piston base has crescent valve block, described crescent valve block is fitted in the air inlet end face of rocking arm, to form the intake valve of one-way air inlet structure; Described driving mechanism, by motor outputting power, drives the motion of rocking arm reciprocating swing, thus drives piston to pump, and delivery air is also entered in the gas channel of upper cover by air bleeding valve, or enters piston from intake valve inhale fresh air.
4. one pump valve module according to claim 3, it is characterized in that: also comprise a shell, described shell is fixed on described driving mechanism, described piston holder is installed on the housing, and described shell has at least two grabs protruded upward, described upper cover is engaged with described shell by grab.
5. one pump valve module according to claim 1, it is characterized in that: described vent valve comprises holder, coil, end cap, described holder be fixed on described on cover, the ring heart of holder forms the bleed passage of vent valve, described coil viscose glue is wrapped in described holder, described end cap adopt rubber and sheet metal one-body molded, at least cover described bleed passage mouth, when the coil is energized, end cap downward bending is driven, closely closed described bleed passage mouth under the electromagnetic field effect that described sheet metal produces at coil.
6. one pump valve module according to claim 5, it is characterized in that: described coil is self-adhesion coil, viscose glue is wrapped in described holder, and the material of described holder is soft iron, and described sheet metal is for having ferromagnetic stainless steel materials.
7. one pump valve module according to claim 5, is characterized in that: the punching of the energising terminal of described coil be inserted in described on cover.
8. one pump valve module according to claim 1, is characterized in that: also comprise slow vent valve, described slow vent valve be arranged on described on cover, the described gas channel of slow vent valve communicates with the gas channel in upper cover.
9. one pump valve module according to claim 8, is characterized in that: described slow vent valve is made up of core print seat, glue core and copper core, wherein, core print seat has the gaseous core chamber passed through for gas, described gaseous core chamber communicates with the gas channel in upper cover, glue core is placed in described gaseous core chamber, one end open is closed in described glue core one end, the opening of described glue core and core print seat end interference fit, the sidewall of described glue core there is otch, described otch is 2mm-3mm in glue core diameter length upwards, copper core be placed in described glue core and with glue core interference fit, the equal opening in described copper core two ends, wherein one end is positioned at the incision of described glue core, the other end is positioned at the opening of glue core, form the gas channel of slow vent valve thus.
10. one pump valve module according to claim 1, is characterized in that: described gas outlet is also connected with a threeway component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801287.8A CN104523257B (en) | 2014-12-22 | 2014-12-22 | Integrally pump valve module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801287.8A CN104523257B (en) | 2014-12-22 | 2014-12-22 | Integrally pump valve module |
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| Publication Number | Publication Date |
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| CN104523257A true CN104523257A (en) | 2015-04-22 |
| CN104523257B CN104523257B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410801287.8A Active CN104523257B (en) | 2014-12-22 | 2014-12-22 | Integrally pump valve module |
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| CN (1) | CN104523257B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018000296A (en) * | 2016-06-28 | 2018-01-11 | フクダ電子株式会社 | Pump assembly and medical equipment |
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|---|---|---|---|---|
| DE10353157A1 (en) * | 2003-11-14 | 2005-09-08 | Heine Optotechnik Gmbh & Co Kg | Blood pressure measurement unit has a pumping arrangement connected to a sleeve via a push button valve that has a piston element, with a surrounding seal, that is moved between pressure maintaining and releasing positions |
| CN201775627U (en) * | 2010-07-26 | 2011-03-30 | 比亚迪股份有限公司 | Controllable release valve and electronic sphygmomanometer adopting the same |
| CN102099606A (en) * | 2008-04-16 | 2011-06-15 | 欧姆龙健康医疗事业株式会社 | Non-return valve structure, diaphragm pump, and blood pressure meter |
| CN102182665A (en) * | 2011-05-26 | 2011-09-14 | 北京康斯特仪表科技股份有限公司 | High-pressure bidirectional miniature power-driven air pump |
| CN102793537A (en) * | 2012-09-05 | 2012-11-28 | 天津九安医疗电子股份有限公司 | Mini-type air release valve |
| CN203000920U (en) * | 2012-09-05 | 2013-06-19 | 天津九安医疗电子股份有限公司 | A mini-size deflation valve and a sleeve strap and a sphygmomanometer with the same |
| CN103767695A (en) * | 2014-01-21 | 2014-05-07 | 深圳市金亿帝科技有限公司 | Vent valve, integrated air pump and electronic sphygmomanometer |
| CN104173037A (en) * | 2014-09-09 | 2014-12-03 | 天津九安医疗电子股份有限公司 | Sphygmomanometer deflation core |
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2014
- 2014-12-22 CN CN201410801287.8A patent/CN104523257B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10353157A1 (en) * | 2003-11-14 | 2005-09-08 | Heine Optotechnik Gmbh & Co Kg | Blood pressure measurement unit has a pumping arrangement connected to a sleeve via a push button valve that has a piston element, with a surrounding seal, that is moved between pressure maintaining and releasing positions |
| CN102099606A (en) * | 2008-04-16 | 2011-06-15 | 欧姆龙健康医疗事业株式会社 | Non-return valve structure, diaphragm pump, and blood pressure meter |
| CN201775627U (en) * | 2010-07-26 | 2011-03-30 | 比亚迪股份有限公司 | Controllable release valve and electronic sphygmomanometer adopting the same |
| CN102182665A (en) * | 2011-05-26 | 2011-09-14 | 北京康斯特仪表科技股份有限公司 | High-pressure bidirectional miniature power-driven air pump |
| CN102793537A (en) * | 2012-09-05 | 2012-11-28 | 天津九安医疗电子股份有限公司 | Mini-type air release valve |
| CN203000920U (en) * | 2012-09-05 | 2013-06-19 | 天津九安医疗电子股份有限公司 | A mini-size deflation valve and a sleeve strap and a sphygmomanometer with the same |
| CN103767695A (en) * | 2014-01-21 | 2014-05-07 | 深圳市金亿帝科技有限公司 | Vent valve, integrated air pump and electronic sphygmomanometer |
| CN104173037A (en) * | 2014-09-09 | 2014-12-03 | 天津九安医疗电子股份有限公司 | Sphygmomanometer deflation core |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018000296A (en) * | 2016-06-28 | 2018-01-11 | フクダ電子株式会社 | Pump assembly and medical equipment |
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| CN104523257B (en) | 2016-08-24 |
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