CN105090005A - Fluid pump and oil pumping device composed of fluid pump - Google Patents
Fluid pump and oil pumping device composed of fluid pump Download PDFInfo
- Publication number
- CN105090005A CN105090005A CN201410179369.3A CN201410179369A CN105090005A CN 105090005 A CN105090005 A CN 105090005A CN 201410179369 A CN201410179369 A CN 201410179369A CN 105090005 A CN105090005 A CN 105090005A
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- Prior art keywords
- pump
- hole
- pin
- core
- pin hole
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- 239000012530 fluid Substances 0.000 title claims abstract description 32
- 238000005086 pumping Methods 0.000 title claims description 10
- 239000007788 liquid Substances 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention discloses a fluid pump. The fluid pump comprises a pump body, a pump needle, an internal pump core and an external pump core. The pump body is provided with a pump cavity, a flow inlet through hole and a flow outlet through hole. An inner needle hole and an overflow hole are formed in the internal pump core, an outer needle hole is formed in the external pump core, one end of the inner needle hole is communicated with the outer needle hole, and the other end of the inner needle hole is communicated with the flow outlet through hole. The pump needle is arranged in a whole formed by the external pump core and the internal pump core in a sliding mode through the outer needle hole and the inner needle hole, the pump needle penetrates through the outer needle hole and stretches into the inner needle hole, and the sliding direction of the pump needle is parallel to a first direction. The fluid pump has the advantages that the needle holes matched with the pump needle are formed in the internal pump core and the external pump core respectively, the length of respective parts is reduced, the size of the needle holes can be better guaranteed in a processing technique, and different processing techniques can be adopted in different portions of the needle holes through the split type pump cores, so that matching accuracy is guaranteed, and meanwhile service life is taken into consideration.
Description
Technical field
The present invention relates to the oil pumping device of a kind of fluid pump and composition thereof, be specifically related to a kind ofly provide the fluid pump of Lubricants and the oil pumping device of composition thereof for instruments such as chain saws.
Background technique
In powerful power tool field, the instruments such as such as chain saw need operationally for it provides Lubricants to operate to enable it corresponding parts are smooth and easy.Generally speaking, Lubricants often adopts lubricant oil, and lubricant oil is often stored in the oil tank on the instrument of being arranged on, and when carrying out work, realizes pump oil by an oil pumping device under the actuator drives of instrument, and lubricating pump is realized lubrication to oil outlet tube.
Existing oil pumping device, often adopts structure in the form of piston, compares to-and-fro motion in closed chamber using a pump pin as piston at one, utilizes the change of pressure to realize pump oil.In the process that reality realizes, existing pump oil structure can not remain desirable dimensional fits, so often there is leakage of oil and not fuel-displaced problem due to pump pin and chamber.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of oil pumping device from the reliable fluid pump of novel structure and composition thereof.
In order to realize above-mentioned target, the present invention adopts following technological scheme:
A kind of fluid pump, comprising: the pump housing, pump pin, the pump housing is provided with: pump chamber, the influent stream through hole be communicated with pump chamber and go out opening, and pump chamber one end is uncovered, and the other end is provided with out opening, and influent stream through hole is arranged between pump chamber two ends; Fluid pump also comprises: external pump core, be communicated with when can make the to-and-fro motion wherein of pump pin or block influent stream through hole and go out the internal pump core of opening, external pump core is provided with outer pin hole, internal pump core be provided with interior pin hole and be arranged on interior pin hole hole wall place be communicated with in the flowing hole of pin hole and influent stream through hole, interior pin hole one end is communicated with outer pin hole, the other end with go out opening and be communicated with; What pump pin was slided by outer pin hole, interior pin hole is arranged in the entirety of external pump core and internal pump core formation, and pump pin passes outer pin hole and stretches to interior pin hole.
Further, interior pin hole is revolution body opening, and it comprises: accommodating section and trip segment, and the aperture of accommodating section is greater than trip segment and goes out the aperture of opening, and accommodating section is arranged on the side near going out opening.
Further, interior pin hole is provided with in accommodating section: check valve assembly, check valve assembly comprises: interior elastic component and valve ball, the pump chamber inwall of orifice edge inside opening is withstood out in interior elastic component one end, the other end bias voltage valve ball make it withstand on end that trip segment is positioned at this side blocks pin hole.
Further, pump pin is solid of rotation, the hole wall close contact of pump pin and trip segment.
Further, the glide direction of pump pin is parallel to first direction, is arranged with a liquid storage groove outside internal pump core, and liquid storage groove is corresponding with the position of flowing hole in a first direction.
Further, or/and or/and be provided with the seal ring be sleeved on pump pin between internal pump core and external pump core in external pump core in internal pump core, seal ring and pump pin close contact.
Further, outer pin hole is revolution body opening, and it comprises: be set with section and pass through section, and the aperture of suit section is greater than the aperture by section, and suit section is positioned near internal pump core side; The external diameter of pump pin is less than or equal to the aperture by section.
Further, internal pump core is formed with the bump being protruding to suit intersegmental part near the side of external pump core, between the end face that seal ring is arranged on bump and end face by section.
Further, fluid pump also comprises: be fixed on the pin cap of pump pin outer end and between the pump housing and pin cap, apply the outer elastic component of the biasing force making them be separated.
Be applicable to an oil pumping device for chain saw, comprise: as the fluid pump of front introduction.
Usefulness of the present invention is: make the pin hole (at least by the trip segment of interior pin hole and consisting of section of outer pin hole) coordinated with pump pin be formed at internal pump core and external pump core respectively, their respective partial-length is shortened, and then better can ensure the size of pin hole in processing technology, and split type pump core (entirety be made up of internal pump core and external pump core) can make pin hole adopt different processing technology to ensure in different piece, and the precision coordinated takes into account working life simultaneously.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of a preferred embodiment of fluid pump of the present invention;
Fig. 2 is exploded perspective view embodiment illustrated in fig. 1;
Fig. 3 is the sectional structure schematic diagram of middle pump body embodiment illustrated in fig. 1;
Fig. 4 is the sectional structure schematic diagram of middle internal pump core embodiment illustrated in fig. 1;
Fig. 5 is the sectional structure schematic diagram of middle external pump core embodiment illustrated in fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
Shown in Fig. 5, fluid pump 100 of the present invention comprises: the pump housing 10, pump pin 20, internal pump core 40, external pump core 30.Wherein, the entirety that pump pin 20 and internal pump core 40 and external pump pin 20 are formed forms and is slidably connected, and the direction of slip is parallel to first direction A.
The pump housing 10 is provided with: pump chamber 11, influent stream through hole 12 and go out opening 13.Pump chamber 11 is one and is formed at the pump housing 10 inner cavity chamber, and its one end is uncovered for parts such as installation pump pin 20 grade, its other end be provided be communicated with it go out opening 13.Influent stream through hole 12 is arranged on the stage casing of pump chamber 11, is namely arranged on the position between pump chamber 11 two ends.
As a kind of preferred version, the pump housing 10 is formed: influent stream pipe 101 and outflow tube 102, the influent stream through hole of the pump housing 10 12 and go out opening 13 and be formed at respectively in influent stream pipe 101 and outflow tube 102.
Internal pump core 40 is arranged in pump chamber 11 completely, and it can make pump pin 20 to-and-fro motion wherein, and is communicated with by the to-and-fro motion of pump pin 20 or blocks influent stream through hole 12 and go out opening 13 thus realize pump liquid.
Specifically, internal pump core 40 is provided with interior pin hole 41 and flowing hole 42, and flowing hole 42 is arranged at the hole wall place of interior pin hole 41, and hole wall runs through by it makes interior pin hole 41 be in communication with the outside, and its object is to influent stream through hole 12 is communicated with interior pin hole 41.
Preferably, interior pin hole 41 is revolution body opening, its rotational axis (scheming not shown) is parallel to first direction A, interior pin hole 41 is now designed to a shoulder hole, specifically, interior pin hole 41 comprises according to the difference in aperture: accommodating section 411 and trip segment 412, and wherein the aperture of accommodating section 411 is larger, the size of trip segment 412 is less, and accommodating section 411 is positioned at the side near going out opening 13.
The effect of accommodating section 411 is to hold check valve assembly 50, this check valve assembly 50 comprises: interior elastic component 51 and valve ball 52, pump chamber 11 inwall of aperture edge inside opening 13 is withstood out in interior elastic component 51 one end, the other end bias voltage valve ball 52 make it withstand on end that trip segment 412 is positioned at 1, so when interior elastic component 51 descends in the raw, valve ball 52 is always biased and pin hole 41 in blocking.When carrying out pump liquid, pump pin 20 to-and-fro motion in interior pin hole 41, the biasing force making valve ball 52 overcome interior elastic component 51 when the pressure of the liquid stream from trip segment 412 side moves thus pin hole 41 in no longer blocking near going out opening 13 side, liquid stream is enable to flow to out opening 13 place, and when flow stream pressure comes from accommodating section 411 side, valve ball 52 can not move, cannot by interior pin hole 41 from going out the liquid stream that fluid through-hole oppositely enters, so, namely valve ball 52 achieves the function of one-way conduction under the effect of interior elastic component 51.Interior elastic component 51 can adopt helical spring.
As further preferred version, pump pin 20 is solid of rotation, in order to realize good pump liquid effect, and the hole wall close contact of pump pin 20 and interior pin hole 41 trip segment 412.So, the end face of pump pin 20 just can better realize piston and apply pressure as to liquid stream.
As further preferred version, a liquid storage groove 43 is arranged with outside internal pump core 40, liquid storage groove 43 is corresponding with the position of flowing hole 42 on first direction A, such benefit is, even if when flowing hole 42 is blocked by pump pin 20, the liquid stream of influent stream through hole 12 also can be full of liquid storage groove 43, once pump pin 20 is backed out expose flowing hole 42, in liquid storage groove 43, liquid stream can enter the continuity that interior pin hole 41 ensures out opening 13 liquid storage at once.
External pump core 30 is arranged on the open-mouth of pump chamber 11, and it is uncovered hermetically sealed by this.Specifically, external pump core 30 is provided with outer pin hole 31, interior pin hole 41 one end align with outer pin hole 31 and be communicated with, the other end with go out opening 13 and align and be communicated with; So, what pump pin 20 was slided by outer pin hole 31, interior pin hole 41 is arranged in external pump core 30 and internal pump core 40, and pump pin 20 passes outer pin hole 31 and stretches to interior pin hole 41.
The effect of external pump core 30 is to encapsulate pump chamber 11, share pump pin 20 in addition to slide required running length, because be that pump pin 20 is really at the stroke carrying out pump liquid from flowing hole 42 to trip segment 412 near this section going out opening 13, as long as so namely the precision that strict guarantee coordinates in internal pump core 40 can realize continuously reliably pump oil and prevent from occurring leakage oil condition because coordinating bad, the slide guiding of remaining stroke of pump pin 20 is then born by external pump core 30.
As a kind of preferred version, between internal pump core 40 and external pump core 30, be provided with the seal ring 80 be sleeved on pump pin 20, seal ring 80 and pump pin 20 close contact.So, seal action is born by seal ring 80, reduce further the processing request of internal pump core 40.Certainly, seal ring 80 also can be arranged on separately in internal pump core 40 or external pump core 30.
As further preferred version, outer pin hole 31 is revolution body opening, and it comprises: be set with section 311 and pass through section 312, and the aperture of suit section 311 is greater than the aperture by section 312, and suit section 311 is positioned at the side near internal pump core 40; The external diameter of pump pin 20 is less than or equal to the aperture by section 312.Internal pump core 40 is formed with the bump 44 being protruding to suit section 311 inside near the side of external pump core 30, between the end face that seal ring 80 is arranged on bump 44 and end face by section 312.
Such benefit is, bump 44 makes the trip segment 412 of interior pin hole 41 not increase the size of the whole pump housing 10 apart from increase, and the size that external pump core 30 is combined with the pump housing 10 is also guaranteed; Meanwhile, seal ring 80 is effectively fixed, and can play due sealing effect.
It should be noted is that, external pump core 30 and internal pump core 40 all can adopt the mode of interference fit to be installed in the pump housing 10.
Can adapt in driving mechanism to make fluid pump 100 of the present invention, as a kind of preferred version, fluid pump 100 also comprises: be fixed on the pin cap 60 of pump pin 20 outer end and between the pump housing 10 and pin cap 60, apply the outer elastic component 70 of the biasing force making them be separated.Wherein, outer elastic component 70 can adopt helical spring.When realizing automatically driving, as long as the reciprocating impact device making instrument have carries out reciprocating impact to pin cap 60.
The oil pumping device being applicable to chain saw of the present invention is the embody rule of fluid pump 100 of the present invention, when being applied to chain saw, the influent stream through hole 12 of the fluid pump 100 more than introduced is connected to oil can, go out opening 13 and be connected to the concrete parts needing lubrication, its pin cap 60 the transmission device reciprocating impact that has by chain saw.
More than show and describe basic principle of the present invention, major character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technological scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (10)
1. a fluid pump, comprise: the pump housing, pump pin, the described pump housing is provided with: pump chamber, the influent stream through hole be communicated with described pump chamber and go out opening, and described pump chamber one end is uncovered, go out opening described in the other end is provided with, described influent stream through hole is arranged between described pump chamber two ends; It is characterized in that: described fluid pump also comprises: external pump core, be communicated with when can make described pump pin to-and-fro motion wherein or block described influent stream through hole and go out the internal pump core of opening, described external pump core is provided with outer pin hole, described internal pump core is provided with interior pin hole and is arranged on the flowing hole that described interior pin hole hole wall place is communicated with described interior pin hole and influent stream through hole, described interior pin hole one end is communicated with outer pin hole, the other end with described go out opening be communicated with; What described pump pin was slided by described outer pin hole, interior pin hole is arranged in the entirety of described external pump core and internal pump core formation, and described pump pin passes described outer pin hole and stretches to described interior pin hole.
2. fluid pump according to claim 1, it is characterized in that: described interior pin hole is revolution body opening, it comprises: accommodating section and trip segment, and the aperture of described accommodating section is greater than described trip segment and goes out the aperture of opening, described accommodating section be arranged near described in go out the side of opening.
3. fluid pump according to claim 2, it is characterized in that: described interior pin hole is provided with in accommodating section: check valve assembly, described check valve assembly comprises: interior elastic component and valve ball, described interior elastic component one end withstand described in go out valve ball described in the pump chamber inwall of orifice edge inside opening, the other end bias voltage make it withstand on end that described trip segment is positioned at this side blocks described pin hole.
4. fluid pump according to claim 3, is characterized in that: described pump pin is solid of rotation, the hole wall close contact of described pump pin and described trip segment.
5. fluid pump according to claim 1, is characterized in that: the glide direction of described pump pin is parallel to first direction, is arranged with a liquid storage groove outside described internal pump core, and described liquid storage groove is corresponding with the position of described flowing hole in said first direction.
6. the fluid pump according to claim 1 to 5 any one, it is characterized in that: or/and or/and be provided with the seal ring be sleeved on described pump pin between described internal pump core and external pump core in external pump core in described internal pump core, described seal ring and described pump pin close contact.
7. fluid pump according to claim 6, is characterized in that: described outer pin hole is revolution body opening, and it comprises: be set with section and pass through section, and the aperture of described suit section is greater than the described aperture by section, and described suit section is positioned near described internal pump core side; The external diameter of described pump pin is less than or equal to the described aperture by section.
8. fluid pump according to claim 7, it is characterized in that, described internal pump core is formed with near the side of described external pump core the bump being protruding to described suit intersegmental part, between the end face that described seal ring is arranged on described bump and the described end face by section.
9. fluid pump according to claim 8, is characterized in that, described fluid pump also comprises: be fixed on the pin cap of described pump pin outer end and between the described pump housing and pin cap, apply the outer elastic component of the biasing force making them be separated.
10. be applicable to an oil pumping device for chain saw, it is characterized in that, comprising: the fluid pump as described in claim 1 to 9 any one.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410179369.3A CN105090005B (en) | 2014-04-29 | 2014-04-29 | Fluid pump and oil pumping device composed of fluid pump |
GB1506844.8A GB2527190B (en) | 2014-04-29 | 2015-04-22 | Chain saw and fluid pump |
US14/694,293 US20150306783A1 (en) | 2014-04-29 | 2015-04-23 | Chain saw and fluid pump |
DE202015102051.1U DE202015102051U1 (en) | 2014-04-29 | 2015-04-24 | Chainsaw and fluid pump |
FR1553739A FR3020302B3 (en) | 2014-04-29 | 2015-04-27 | CHAIN SAW |
CA2889356A CA2889356C (en) | 2014-04-29 | 2015-04-27 | Chain saw and fluid pump |
AU2015100569A AU2015100569A4 (en) | 2014-04-29 | 2015-04-29 | Chain Saw And Fluid Pump |
US15/695,202 US10118307B2 (en) | 2014-04-29 | 2017-09-05 | Chain saw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410179369.3A CN105090005B (en) | 2014-04-29 | 2014-04-29 | Fluid pump and oil pumping device composed of fluid pump |
Publications (2)
Publication Number | Publication Date |
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CN105090005A true CN105090005A (en) | 2015-11-25 |
CN105090005B CN105090005B (en) | 2017-04-19 |
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Application Number | Title | Priority Date | Filing Date |
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CN201410179369.3A Expired - Fee Related CN105090005B (en) | 2014-04-29 | 2014-04-29 | Fluid pump and oil pumping device composed of fluid pump |
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CN (1) | CN105090005B (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111771054A (en) * | 2017-12-07 | 2020-10-13 | 木兰医药技术股份有限公司 | Fluid control device and method of use |
US11311218B2 (en) | 2012-11-30 | 2022-04-26 | Magnolia Medical Technologies, Inc. | Syringe-based fluid diversion mechanism for bodily fluid sampling |
US11395611B2 (en) | 2012-05-30 | 2022-07-26 | Magnolia Medical Technologies, Inc. | Fluid diversion mechanism for bodily-fluid sampling |
US11529081B2 (en) | 2017-09-12 | 2022-12-20 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
US11737693B2 (en) | 2012-12-04 | 2023-08-29 | Magnolia Medical Technologies, Inc. | Sterile bodily-fluid collection device and methods |
US11786155B2 (en) | 2019-02-08 | 2023-10-17 | Magnolia Medical Technologies, Inc. | Devices and methods for bodily fluid collection and distribution |
US11819329B2 (en) | 2012-05-30 | 2023-11-21 | Magnolia Medical Technologies, Inc. | Fluid diversion mechanism for bodily-fluid sampling |
US11857321B2 (en) | 2019-03-11 | 2024-01-02 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
US11890452B2 (en) | 2012-10-11 | 2024-02-06 | Magnolia Medical Technologies, Inc. | Systems and methods for delivering a fluid to a patient with reduced contamination |
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GB1291035A (en) * | 1971-05-01 | 1972-09-27 | Frank Davison | Chainsaw oil pump |
JPS589702U (en) * | 1981-07-14 | 1983-01-21 | 株式会社共立 | Oil supply pump for chain saw |
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CN201972825U (en) * | 2010-12-31 | 2011-09-14 | 余姚市舒春机械有限公司 | Diesel engine oil spraying pump assembly |
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2014
- 2014-04-29 CN CN201410179369.3A patent/CN105090005B/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1291035A (en) * | 1971-05-01 | 1972-09-27 | Frank Davison | Chainsaw oil pump |
JPS589702U (en) * | 1981-07-14 | 1983-01-21 | 株式会社共立 | Oil supply pump for chain saw |
CN2138199Y (en) * | 1992-09-12 | 1993-07-14 | 许长钰 | Oil dropping pump for carbonization of heating treatment |
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Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11395612B2 (en) | 2012-05-30 | 2022-07-26 | Magnolia Medical Technologies, Inc. | Fluid diversion mechanism for bodily-fluid sampling |
US11819329B2 (en) | 2012-05-30 | 2023-11-21 | Magnolia Medical Technologies, Inc. | Fluid diversion mechanism for bodily-fluid sampling |
US11395611B2 (en) | 2012-05-30 | 2022-07-26 | Magnolia Medical Technologies, Inc. | Fluid diversion mechanism for bodily-fluid sampling |
US11890452B2 (en) | 2012-10-11 | 2024-02-06 | Magnolia Medical Technologies, Inc. | Systems and methods for delivering a fluid to a patient with reduced contamination |
US11607159B2 (en) | 2012-11-30 | 2023-03-21 | Magnolia Medical Technologies, Inc. | Bodily-fluid transfer system for bodily fluid sampling |
US11311218B2 (en) | 2012-11-30 | 2022-04-26 | Magnolia Medical Technologies, Inc. | Syringe-based fluid diversion mechanism for bodily fluid sampling |
US11589786B2 (en) | 2012-11-30 | 2023-02-28 | Magnolia Medical Technologies, Inc. | Syringe-based fluid diversion mechanism for bodily fluid sampling |
US11660030B2 (en) | 2012-11-30 | 2023-05-30 | Magnolia Medical Technologies, Inc. | Syringe-based fluid diversion mechanism for bodily fluid sampling |
US11317838B2 (en) | 2012-11-30 | 2022-05-03 | Magnolia Medical Technologies, Inc. | Syringe-based fluid diversion mechanism for bodily fluid sampling |
US11737693B2 (en) | 2012-12-04 | 2023-08-29 | Magnolia Medical Technologies, Inc. | Sterile bodily-fluid collection device and methods |
US11529081B2 (en) | 2017-09-12 | 2022-12-20 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
US11903709B2 (en) | 2017-09-12 | 2024-02-20 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
US11653863B2 (en) | 2017-09-12 | 2023-05-23 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
US11903710B2 (en) | 2017-09-12 | 2024-02-20 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
CN111771054A (en) * | 2017-12-07 | 2020-10-13 | 木兰医药技术股份有限公司 | Fluid control device and method of use |
US11419531B2 (en) | 2017-12-07 | 2022-08-23 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
US11786155B2 (en) | 2019-02-08 | 2023-10-17 | Magnolia Medical Technologies, Inc. | Devices and methods for bodily fluid collection and distribution |
US11857321B2 (en) | 2019-03-11 | 2024-01-02 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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Granted publication date: 20170419 |