CN106490933B - Mother and baby's scald-proof straw - Google Patents
Mother and baby's scald-proof straw Download PDFInfo
- Publication number
- CN106490933B CN106490933B CN201611168324.1A CN201611168324A CN106490933B CN 106490933 B CN106490933 B CN 106490933B CN 201611168324 A CN201611168324 A CN 201611168324A CN 106490933 B CN106490933 B CN 106490933B
- Authority
- CN
- China
- Prior art keywords
- sliding plug
- strong magnetic
- cavity
- magnetic sliding
- ferromagnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 206010053615 Thermal burn Diseases 0.000 title claims abstract description 19
- 239000010902 straw Substances 0.000 title claims abstract description 18
- 230000005291 magnetic effect Effects 0.000 claims abstract description 53
- 239000003350 kerosene Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 10
- 230000008602 contraction Effects 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 239000010742 number 1 fuel oil Substances 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract description 30
- 239000012530 fluid Substances 0.000 abstract description 6
- 210000000214 mouth Anatomy 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 12
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G21/00—Table-ware
- A47G21/18—Drinking straws or the like
Landscapes
- Cookers (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Closures For Containers (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The present invention provides a kind of mother and baby's scald-proof straw, including metal enclosed chamber, and the strong magnetic sliding plug that can be slid up and down is provided with it；Kerosene, air have been closed off below strong magnetic sliding plug, in the citadel of top；It is adapter cavity above closing chamber, the side wall of adapter cavity, upper end offer inlet opening, apopore；It is switch cavity above adapter cavity, switch cavity top connected sucking pipe main body, the water board being constrained in ferromagnet in switch cavity is separated between switch cavity and suction pipe main body；When switch cavity bottom is dropped down onto under ferromagnet, the apopore above adapter cavity is blocked；When kerosene temperature is less than 40 DEG C, strong magnetic sliding plug declines, and now strong magnetic sliding plug is less than the product of the area of standard atmospheric pressure and apopore to ferromagnetic maximum suction；When kerosene temperature is more than 45 DEG C, strong magnetic sliding plug rises, and now strong magnetic sliding plug is more than the product of the area of standard atmospheric pressure and apopore to ferromagnetic minimum suction.Mother and baby's scald-proof straw can when fluid temperature is higher self-closed, prevent oral cavity from scalding.
Description
Technical field
The present invention relates to mother and baby's articles for use field, especially, is related to a kind of suction pipe.
Background technology
In mother and baby's articles for use field, suction pipe is a kind of conventional article；Because when drawing liquid using suction pipe, liquid is from suction
Pipe port is flowed rapidly into mouth, such as slightly careless when fluid temperature is higher, then scalds probably baby oral cavity；Therefore,
When energy of accompanying and attending to is limited, baby is sucked the liquid of heating using common suction pipe, such as milk, there is larger danger.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of mother and baby's scald-proof straw, mother and baby's scald-proof straw is in liquid
When temperature is higher, can self-closed, so as to prevent oral cavity from scalding.
The first technical scheme is used by the present invention solves its technical problem：Mother and baby's scald-proof straw includes bottom
Metal enclosed chamber, the strong magnetic sliding plug that can be slid up and down along suction pipe axis is provided with the closing chamber；Below the strong magnetic sliding plug
Citadel inner sealing have kerosene, the citadel inner sealing air above strong magnetic sliding plug；A mistake is provided with above the closing chamber
Chamber is crossed, the side wall of the adapter cavity offers inlet opening, and the upper end of adapter cavity offers apopore；Also set above the adapter cavity
There are a switch cavity, the top connected sucking pipe main body of the switch cavity, and water board is separated between switch cavity and suction pipe main body, institute
State water board one ferromagnet is constrained in the switch cavity；When switch cavity bottom is dropped down onto under the ferromagnet, just by institute
The apopore above adapter cavity is stated to block, and when the ferromagnet is risen at the top of switch cavity, the water board is not blocked；It is described
When the temperature of kerosene is less than 40 DEG C, the strong magnetic sliding plug declines with the contraction of kerosene, and now strong magnetic sliding plug is for described ferromagnetic
The maximum suction of body is less than the product of a standard atmospheric pressure and the area of the apopore；The temperature of the kerosene is more than 45 DEG C
When, the strong magnetic sliding plug rises with the expansion of kerosene, and now strong magnetic sliding plug is more than one for the ferromagnetic minimum suction
The product of individual standard atmospheric pressure and the area of the apopore.
Preferably, the water board is made up of the porous plate for the through hole that gathers；The ferromagnet by permanent magnet by can be attracted
Stainless steel ball form, such as martensitic stain less steel ball.
Preferably, the suction pipe main body is pluggable in the upper end of the switch cavity, with when not needing high temperature protection, directly
Connect and liquid is swimmingly sucked using suction pipe main body.
Second of technical scheme is used by the present invention solves its technical problem：Mother and baby's scald-proof straw includes bottom
Metal enclosed chamber, the strong magnetic sliding plug that can be slid up and down along suction pipe axis is provided with the closing chamber；Below the strong magnetic sliding plug
Citadel inner sealing have kerosene, the citadel inner sealing air above strong magnetic sliding plug；A mistake is provided with above the closing chamber
Chamber is crossed, the side wall of the adapter cavity offers inlet opening, and the upper end of adapter cavity offers apopore；Connect above the adapter cavity
Connect suction pipe main body；One piece of ferromagnetic sliding plug for being provided with axis hole is provided with the adapter cavity, the ferromagnetic sliding plug slides into adapter cavity
During bottom, the side wall of ferromagnetic sliding plug blocks the inlet opening of adapter cavity, and when ferromagnetic sliding plug is slided at the top of adapter cavity, adapter cavity
Inlet opening connected by the axis hole of ferromagnetic sliding plug with the apopore of adapter cavity；The perisporium of the ferromagnetic sliding plug is further opened with together
Annular groove；When the temperature of the kerosene is less than 40 DEG C, the strong magnetic sliding plug declines with the contraction of kerosene, now strong magnetic sliding plug for
The maximum suction of the ferromagnetic sliding plug is less than a standard atmospheric pressure and the product of the horizontal projected area of the annular groove；The coal
When the temperature of oil is more than 45 DEG C, the strong magnetic sliding plug rises with the expansion of kerosene, and now strong magnetic sliding plug is for the ferromagnetic cunning
The minimum suction of plug is more than a standard atmospheric pressure and the product of the horizontal projected area of the annular groove.
Preferably, the suction pipe main body is pluggable in the upper end of the adapter cavity, with when not needing high temperature protection, directly
Connect and liquid is swimmingly sucked using suction pipe main body.
The beneficial effect of above two mother and baby's scald-proof straw is：When fluid temperature is higher, due to the coal in closing chamber
Oily expansive force is much larger than air, the strong magnetic sliding plug is increased, so that strong magnetic sliding plug and the ferromagnet or ferromagnetic sliding plug
Magnetic attraction increase to it is also bigger to the upward active force of ferromagnet or ferromagnetic sliding plug than atmospheric pressure so that the water outlet of the adapter cavity
Hole or inlet opening are blocked, and the suction pipe can not be sucked high-temp liquid；And when fluid temperature is relatively low, due under strong magnetic sliding plug
Drop, the magnetic attraction of strong magnetic sliding plug and the ferromagnet or ferromagnetic sliding plug is set to drop to reduced levels, so that atmospheric pressure can be with
The ferromagnet or ferromagnetic sliding plug are raised upwards, so that the suction pipe can be with normal extraction cryogenic liquid.
Brief description of the drawings
Fig. 1 is the schematic diagram of this mother and baby scald-proof straw embodiment one.
Fig. 2 is the schematic diagram of this mother and baby scald-proof straw embodiment two.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples：
Implement one：
In the embodiment one shown in Fig. 1, mother and baby's scald-proof straw includes the metal enclosed chamber 1 of bottom, the closing
The strong magnetic sliding plug 11 that can be slid up and down along suction pipe axis is provided with chamber 1；The citadel inner sealing of the strong lower section of magnetic sliding plug 11 has
Kerosene 12, the citadel inner sealing air 13 of the strong top of magnetic sliding plug 11；The top of closing chamber 1 is provided with an adapter cavity 2, described
The side wall of adapter cavity 2 offers inlet opening 21, and the upper end of adapter cavity 2 offers apopore 22；The top of adapter cavity 2 is additionally provided with
One switch cavity 3, the top connected sucking pipe main body 4 of the switch cavity 3, and it is separated with water board between switch cavity 3 and suction pipe main body 4
31, a ferromagnet 32 is constrained in the switch cavity 3 by the water board 31；The bottom of switch cavity 3 is dropped down onto under the ferromagnet 32
During portion, the apopore 22 of the top of the adapter cavity 2 is blocked just, and when the ferromagnet 32 rises to 3 top of switch cavity, no
Block the water board 31；When the temperature of the kerosene 12 is less than 40 DEG C, the strong magnetic sliding plug 11 declines with the contraction of kerosene,
Now strong magnetic sliding plug 11 is less than the face of a standard atmospheric pressure and the apopore 22 for the maximum suction of the ferromagnet 32
The product of product, i.e. during so that the air of the top of ferromagnet 32 being sucked away, external atmosphere pressure is had the ability ferromagnet 32 to pop-up
Rise；When the temperature of the kerosene is more than 45 DEG C, the strong magnetic sliding plug 11 rises with the expansion of kerosene, and now strong magnetic sliding plug 11 is right
It is more than the product of a standard atmospheric pressure and the area of the apopore 22 in the minimum suction of the ferromagnet 32, now, i.e.,
Just the top of ferromagnet 32 forms vacuum, and external atmosphere pressure also can not hold up ferromagnet 32 upwards, therefore ferromagnet 32 will be located all the time
In the bottom of switch cavity 3.
Above-mentioned mother and baby's scald-proof straw, the water board 31 are made up of the porous plate for the through hole that gathers；The ferromagnet 32 by
The stainless steel ball that can be attracted by permanent magnet is formed, such as martensitic stain less steel ball.In addition, the suction pipe main body 4 is pluggable in described
The upper end of switch cavity 3, when not needing high temperature protection, directly swimmingly to suck liquid using suction pipe main body 4.
Embodiment two：
In the embodiment two shown in Fig. 2, mother and baby's scald-proof straw includes the metal enclosed chamber 1 of bottom, the closing
The strong magnetic sliding plug 11 that can be slid up and down along suction pipe axis is provided with chamber 1；The citadel inner sealing of the strong lower section of magnetic sliding plug 11 has
Kerosene 12, the citadel inner sealing air 13 of the strong top of magnetic sliding plug 11；The top of closing chamber 1 is provided with an adapter cavity 2, described
The side wall of adapter cavity 2 offers inlet opening 21, and the upper end of adapter cavity 2 offers apopore 22；The top connection of the adapter cavity 2
Suction pipe main body 4；One piece of ferromagnetic sliding plug 23 for being provided with axis hole is provided with the adapter cavity 2, the ferromagnetic sliding plug 23 slides into transition
During the bottom of chamber 2, the side wall of ferromagnetic sliding plug 23 blocks the inlet opening 21 of adapter cavity, and ferromagnetic sliding plug 23 slides into adapter cavity 2
During top, the inlet opening 21 of adapter cavity 2 is connected by the axis hole of ferromagnetic sliding plug 23 with the apopore 22 of adapter cavity 2；It is described ferromagnetic
The perisporium of sliding plug 23 is further opened with one of annular groove 230, and when ferromagnetic sliding plug 23 slides into the bottom of switch cavity 2, the annular groove 230 is just
To the inlet opening 21；When the temperature of the kerosene 12 is less than 40 DEG C, the strong magnetic sliding plug 11 declines with the contraction of kerosene, this
When strong magnetic sliding plug 11 be less than the level of standard atmospheric pressure and the annular groove 230 for the maximum suction of the ferromagnetic sliding plug 23
The product of projected area, so that external atmosphere pressure has the ability upwards to hold up the ferromagnetic sliding plug 23；The temperature of the kerosene is big
When 45 DEG C, the strong magnetic sliding plug 11 rises with the expansion of kerosene, and now strong magnetic sliding plug 11 is for the ferromagnetic sliding plug 23
Minimum suction is more than a standard atmospheric pressure and the product of the horizontal projected area of the annular groove 230.
With embodiment one similarly, the suction pipe main body 4 is pluggable in the upper end of the adapter cavity 2, not need height
During temperature protection, liquid is swimmingly directly sucked using suction pipe main body 4.
Two kinds of above-mentioned mother and baby's scald-proof straws, when fluid temperature is higher, because the expansive force of kerosene 12 in closing chamber 1 is remote
More than the air in closing chamber 1, the strong magnetic sliding plug 11 is set to increase, so that strong magnetic sliding plug 11 and the ferromagnet 32 or ferromagnetic
The magnetic attraction of sliding plug 23 increase to it is also bigger to the upward active force of ferromagnet 32 or ferromagnetic sliding plug 23 than atmospheric pressure so that described
The apopore 22 of adapter cavity 2 or inlet opening 21 are blocked, and the suction pipe can not be sucked high-temp liquid；And when fluid temperature is relatively low
When, due to the decline of strong magnetic sliding plug 11, drop to strong magnetic sliding plug 11 and the magnetic attraction of the ferromagnet 32 or ferromagnetic sliding plug 23
Reduced levels, so that atmospheric pressure can raise the ferromagnet 32 or ferromagnetic sliding plug 23 upwards, so that the suction pipe can be with
Normal extraction cryogenic liquid.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification for being made, equivalent substitution, it should be included in the scope of the protection.
Claims (3)
- A kind of 1. mother and baby's scald-proof straw, it is characterised in that：Metal enclosed chamber including bottom（1）, the metal enclosed chamber（1） It is interior to be provided with the strong magnetic sliding plug that slid up and down along suction pipe axis（11）；The strong magnetic sliding plug（11）The citadel inner sealing of lower section has Kerosene（12）, strong magnetic sliding plug（11）The citadel inner sealing air of top（13）；The closing chamber（1）Top is provided with a transition Chamber（2）, the adapter cavity（2）Side wall offer inlet opening（21）, adapter cavity（2）Upper end offer apopore（22）；Institute State adapter cavity（2）Top is additionally provided with a switch cavity（3）, the switch cavity（3）Top connected sucking pipe main body（4）, and switch Chamber（3）With suction pipe main body（4）Between be separated with water board（31）, the water board（31）By a ferromagnet（32）It is constrained in described Switch cavity（3）It is interior；The ferromagnet（32）Under drop down onto switch cavity（3）During bottom, just by the adapter cavity（2）The water outlet of top Hole（22）Block, and the ferromagnet（32）When rising at the top of switch cavity, the water board is not blocked（31）；The kerosene （12）Temperature when being less than 40 DEG C, the strong magnetic sliding plug（11）Decline with the contraction of kerosene, now strong magnetic sliding plug（11）For The ferromagnet（32）Maximum suction be less than standard atmospheric pressure and the apopore（22）Area product；The coal Oil（12）Temperature when being more than 45 DEG C, the strong magnetic sliding plug（11）Rise with the expansion of kerosene, now strong magnetic sliding plug（11）It is right In the ferromagnet（32）Minimum suction be more than standard atmospheric pressure and the apopore（22）Area product.
- 2. mother and baby's scald-proof straw according to claim 1, it is characterised in that：The water board（31）By the more of through hole of gathering Orifice plate is formed；The ferromagnet（32）By can be formed by the stainless steel ball that permanent magnet attracts.
- 3. mother and baby's scald-proof straw according to claim 1 or 2, it is characterised in that：The suction pipe main body（4）It is pluggable in institute State switch cavity（3）Upper end.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710846904.XA CN107374270B (en) | 2016-12-16 | 2016-12-16 | Scald-proof straw |
| CN201710946825.6A CN107928320B (en) | 2016-12-16 | 2016-12-16 | Mother and infant prevents scalding straw |
| CN201611168324.1A CN106490933B (en) | 2016-12-16 | 2016-12-16 | Mother and baby's scald-proof straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168324.1A CN106490933B (en) | 2016-12-16 | 2016-12-16 | Mother and baby's scald-proof straw |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710946825.6A Division CN107928320B (en) | 2016-12-16 | 2016-12-16 | Mother and infant prevents scalding straw |
| CN201710846904.XA Division CN107374270B (en) | 2016-12-16 | 2016-12-16 | Scald-proof straw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106490933A CN106490933A (en) | 2017-03-15 |
| CN106490933B true CN106490933B (en) | 2017-12-01 |
Family
ID=58331164
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710946825.6A Expired - Fee Related CN107928320B (en) | 2016-12-16 | 2016-12-16 | Mother and infant prevents scalding straw |
| CN201710846904.XA Active CN107374270B (en) | 2016-12-16 | 2016-12-16 | Scald-proof straw |
| CN201611168324.1A Expired - Fee Related CN106490933B (en) | 2016-12-16 | 2016-12-16 | Mother and baby's scald-proof straw |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710946825.6A Expired - Fee Related CN107928320B (en) | 2016-12-16 | 2016-12-16 | Mother and infant prevents scalding straw |
| CN201710846904.XA Active CN107374270B (en) | 2016-12-16 | 2016-12-16 | Scald-proof straw |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN107928320B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998342B (en) * | 2019-05-22 | 2020-12-22 | 南通谷目餐饮管理有限公司 | Scald-proof liquid food straw for children |
| CN110037512A (en) * | 2019-06-03 | 2019-07-23 | 上海榛屹家居用品有限公司 | A kind of antispray thermostat valve |
| CN111466768B (en) * | 2020-04-16 | 2022-10-11 | 连云港佰腾科技信息有限公司 | Instant hot drink is with preventing scalding straw |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6457612B1 (en) * | 2001-10-12 | 2002-10-01 | Amphastar Pharmaceuticals Inc. | Sealable and manipulable pre-filled disposable pipette |
| US7100838B1 (en) * | 2004-06-17 | 2006-09-05 | Epstein Stephen T | Novelty straw and associated method of operation |
| CN101461644A (en) * | 2009-01-08 | 2009-06-24 | 吴小东 | Scald-proof straw |
| CN201834825U (en) * | 2010-05-11 | 2011-05-18 | 尹德翠 | Membrane filtration magnetization drinking water suction tube filter |
| CN202234444U (en) * | 2011-09-09 | 2012-05-30 | 盛雨点 | Anti-burn drinkware |
| CN202919798U (en) * | 2012-08-07 | 2013-05-08 | 许力 | Portable suction head |
| CN203000374U (en) * | 2012-12-03 | 2013-06-19 | 张富荃 | Heating suction pipe |
| CN203676770U (en) * | 2013-11-27 | 2014-07-02 | 深圳市开颜医疗器械有限公司 | Straw |
| CN203934973U (en) * | 2014-06-26 | 2014-11-12 | 台州弘海纸制品科技有限公司 | Automatic anti-scalding dixie cup |
| CN104433658B (en) * | 2014-09-25 | 2016-08-24 | 义乌市蒙特日用品有限公司 | A kind of Double-layer sucker |
| CN105686580A (en) * | 2014-11-26 | 2016-06-22 | 广西大学 | Scald-preventing straw |
| CN204445213U (en) * | 2015-03-11 | 2015-07-08 | 丁丹巧 | A kind of anti-scald suction pipe |
| CN104905641A (en) * | 2015-07-11 | 2015-09-16 | 鲁杨 | Sanitary straw |
| CN205761245U (en) * | 2016-05-29 | 2016-12-07 | 北京物资学院 | A kind of heat treated sample processing means |
| CN207499971U (en) * | 2017-11-17 | 2018-06-15 | 吉林大学 | A kind of expansion water tank cover, the expansion tank of the anti-scald in engine high-temperature |
-
2016
- 2016-12-16 CN CN201710946825.6A patent/CN107928320B/en not_active Expired - Fee Related
- 2016-12-16 CN CN201710846904.XA patent/CN107374270B/en active Active
- 2016-12-16 CN CN201611168324.1A patent/CN106490933B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN107928320A (en) | 2018-04-20 |
| CN107928320B (en) | 2020-04-21 |
| CN107374270A (en) | 2017-11-24 |
| CN107374270B (en) | 2019-01-04 |
| CN106490933A (en) | 2017-03-15 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170927 Address after: Ganquan road Shushan District of Hefei City, Anhui Province, Jiangmen 230000 Business Garden No. 81 floor B-2705 Applicant after: Hefei long elf Information Technology Co., Ltd. Address before: Wujiang District of Suzhou City, Jiangsu Province, Kaiping road 215200 Wuyue square block D room 1418 Applicant before: Zhu Hongfei |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Di Inventor after: Hu Gui Inventor before: Zhu Hongfei |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171031 Address after: 410000 Yuelu District, Hunan, Tongzi slope road, Changsha Applicant after: The Third Hospital of Central South University Address before: Ganquan road Shushan District of Hefei City, Anhui Province, Jiangmen 230000 Business Garden No. 81 floor B-2705 Applicant before: Hefei long elf Information Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20181216 |