CN109251863A - A kind of novel cell culture vessel - Google Patents

A kind of novel cell culture vessel Download PDF

Info

Publication number
CN109251863A
CN109251863A CN201811397348.3A CN201811397348A CN109251863A CN 109251863 A CN109251863 A CN 109251863A CN 201811397348 A CN201811397348 A CN 201811397348A CN 109251863 A CN109251863 A CN 109251863A
Authority
CN
China
Prior art keywords
mould group
pedestal
cell culture
culture vessel
fixedly installed
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.)
Pending
Application number
CN201811397348.3A
Other languages
Chinese (zh)
Inventor
余春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innovil Intelligent Technology (suzhou) Co Ltd
Original Assignee
Innovil Intelligent Technology (suzhou) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Innovil Intelligent Technology (suzhou) Co Ltd filed Critical Innovil Intelligent Technology (suzhou) Co Ltd
Priority to CN201811397348.3A priority Critical patent/CN109251863A/en
Publication of CN109251863A publication Critical patent/CN109251863A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00Constructional details, e.g. recesses, hinges
    • C12M23/38Caps; Covers; Plugs; Pouring means
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00Constructional details, e.g. recesses, hinges
    • C12M23/40Manifolds; Distribution pieces

Landscapes

  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Chemical & Material Sciences (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Sustainable Development (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Clinical Laboratory Science (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

The present invention relates to a kind of cell culture vessels, in particular a kind of novel cell culture vessel, including seal closure, full-automatic liquid relief fluid body, pedestal, it automatically uncaps and closes lid mechanism and mounting base, through-hole is offered at the top of the pedestal, the inside of the through-hole is provided through with liquid storehouse, it is described to be fixedly installed with motor rotating mechanism with liquid orlop portion, the motor rotating mechanism is fixedly connected with liquid storehouse by rotating seal ring, the motor rotating mechanism and pedestal are fixedly mounted by mounting base, it is described to be fixedly installed with dial feed structure with liquid the top of the warehouse, hollow design is provided on the dial feed structure, pedestal is fixedly installed at the top of the pedestal, it is provided with automatically to uncap at the top of the pedestal and closes lid mechanism, it is described automatically to uncap that close lid mechanism include transmission parts, third mould group, second mould group and One mould group, single unit system structure of the present invention is simple, and work efficiency is high, reaches GMP and closes rule, has certain popularizing action.

Description

A kind of novel cell culture vessel
Technical field
The present invention relates to a kind of cell culture vessel, specially a kind of novel cell culture vessel.
Background technique
Cell clone technology is also in cell culture, and the regular noun in biology is cell culture technology, no matter for For entire biotechnology, or one of them biological cloning technology, cell culture is all an essential mistake Journey, the extensive clone of cell culture inherently cell, cell culture technology can by a cell by mass propgation at For simple many cells that are unicellular or seldom breaking up, this is the essential link of clone technology, and cell culture itself It is exactly the clone of cell, a large amount of cell or its metabolite is obtained by cell culture, because biological product is all from cell It gets, it is possible to say that cell culture technology is most crucial, most basic technology in biotechnology, and existing cell training at present Feeding operating with liquid is to match liquid with liquid or lower than the GMP automation/semi-automation for closing rule by hand, but there are low efficiency, consumptions When, high labor cost and it is unable to reach the defect that GMP closes rule, it is therefore desirable to which a kind of novel cell culture vessel is to the above problem Make improvement.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of novel cell culture vessel Problem.
To achieve the above object, the invention provides the following technical scheme:
A kind of novel cell culture vessel, including seal closure, full-automatic liquid relief fluid body, pedestal, automatically uncap Lid mechanism and mounting base are closed, offers through-hole on the pedestal top, the inside of the through-hole is provided through with liquid storehouse, described Motor rotating mechanism is fixedly installed with liquid orlop portion, the motor rotating mechanism and passes through the fixed company of rotating seal ring with liquid storehouse It connects, the motor rotating mechanism and pedestal are fixedly mounted by mounting base, described to be fixedly installed with turntable feeding with liquid the top of the warehouse Mechanism is provided with hollow design on the dial feed structure, pedestal is fixedly installed at the top of the pedestal, the pedestal Top, which is provided with, automatically uncaps and closes lid mechanism, described automatically to uncap that close lid mechanism include transmission parts, third mould group, the Two mould groups and the first mould group, the transmission parts, third mould group, the second mould group, the first mould group and pedestal are run through by fixing axle Connection, the top of the fixing axle are fixedly installed with Z axis motor, and the third mould group, the second mould group and the first mould group are by twisting For mandrel through connection, the top of the tightening axle, which is fixedly installed with, tightens motor, and the first mould group and dial feed structure are logical Cross culture vessel flexible connection, described automatically uncap closes the periphery of lid mechanism and be arranged with seal closure, the back side of the seal closure It is fixedly installed with full-automatic liquid relief fluid body.
Preferably, the turntable is in Pentagram shape.
Preferably, the fixing axle is provided with three groups, and size is equal.
Preferably, the pedestal is fixedly connected with mounting base by electric welding.
Preferably, the inner diameter size of the rotating seal ring and outer diameter with liquid storehouse are equal in magnitude.
Preferably, perforation is offered in the first mould group, the second mould group and third mould group.
Compared with prior art, the beneficial effects of the present invention are:
1, in the present invention, in use, the motor rotating mechanism by setting is started to work, and the turntable feeding of setting is driven Mechanism starts turning, and closes lid mechanism bottom so that the culture vessel of setting is moved to automatically to uncap and carries out operation of uncapping, And the full-automatic liquid relief fluid body bottom for being moved to setting carries out liquid relief to it and operates with liquid, then is moved to the full-automatic of setting Uncap close lid mechanism bottom carry out close lid operation, by this operating process solve current automation/semi-automation match liquid can not Reach GMP and close rule problem, and work efficiency is high, cost of labor is low.
2, in the present invention, in use, driving the first mould closed in lid mechanism of automatically uncapping by process control Z axis motor Group, the second mould group and third mould group move up and down to operating position, tighten motor and drive tightening axle switch bottle cap, reach and open automatically Close the purpose of lid, and by be set in automatically uncap close the seal closure of lid mechanism periphery the parts such as motor, cable seal every From, while in the enterprising action sealing of whole axis, achieve the purpose that protect part and guarantee with liquid storehouse cleanliness.
3, in the present invention, in use, the dial feed structure by setting uses standardized designs, same station can be adapted to Multiple types consumptive material, and the hollow design by being arranged on dial feed structure alleviates the weight of overall mechanism itself, and The permeability of gas, while the drive part motor rotating mechanism of the dial feed structure by setting are increased, ensure that fortune Dynamic precision, while ensure that the leakproofness with liquid storehouse by driving it the design of underlying and rotating seal ring.
4, in the present invention, in use, increasing the stability of single unit system by the pedestal being arranged, and pass through the peace of setting Dress seat ensure that an integrality of motor-driven mechanism and single unit system, and the pedestal by being arranged makes the fixing axle of setting With a supporting point, while it being made to reach a connection relationship with pedestal, closes lid mechanism to increase and automatically uncap Stability.
Detailed description of the invention
Fig. 1 is integral outer structural schematic diagram of the present invention;
Fig. 3 is that full-automatic uncap of the present invention closes lid mechanism structural schematic diagram;
Fig. 2 is A partial enlargement diagram of the present invention;
In figure: the full-automatic liquid relief fluid body of 1- seal closure, 2-, 3- pedestal, 4-, which automatically uncap, closes lid mechanism, 5- installation Seat, 6- pedestal, 7- fixing axle, the first mould of 8- group, 9- culture vessel, 10- dial feed structure, 11- hollow design, 12- transmission Component, 13- tightening axle, the second mould of 14- group, 15- third mould group, 16- tighten motor, 17-Z spindle motor, 18- with liquid storehouse, 19- electricity Machine rotating mechanism, 20- through-hole, 21- rotating seal ring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution:
A kind of novel cell culture vessel, including seal closure 1, full-automatic liquid relief fluid body 2, pedestal 3, full-automatic Lid closes lid mechanism 4 and mounting base 5, offers through-hole 20 on 3 top of pedestal, the inside of the through-hole 20, which is provided through, matches Liquid storehouse 18, it is described to be fixedly installed with motor rotating mechanism 19 with 18 bottom of liquid storehouse, the motor rotating mechanism 19 and match liquid storehouse 18 It is fixedly connected by rotating seal ring 21, the motor rotating mechanism 19 and pedestal 3 are fixedly mounted by mounting base 5, described to match It is fixedly installed with dial feed structure 10 at the top of liquid storehouse 18, hollow design 11 is provided on the dial feed structure 10, uses When, standardized designs are used by the dial feed structure 10 of setting, same station can be adapted to multiple types consumptive material, and by setting The hollow design 11 set on dial feed structure 10 alleviates the weight of overall mechanism itself, and increases the penetrating of gas Property, while the drive part motor rotating mechanism 19 of the dial feed structure 10 by setting, it ensure that the precision of movement, simultaneously It ensure that the leakproofness with liquid storehouse 18 by driving it the design of underlying and rotating seal ring 21, the top of the pedestal 3 is solid Dingan County is equipped with pedestal 6, and the top of the pedestal 6, which is provided with automatically to uncap, closes lid mechanism 4, and described automatically uncap closes lid mechanism 4 include transmission parts 12, third mould group 15, the second mould group 14 and the first mould group 8, the transmission parts 12, third mould group 15, Second mould group 14, the first mould group 8 and pedestal 6 run through connection by fixing axle 7, in use, being increased by the pedestal 3 of setting whole The stability of body device, and the mounting base 5 by being arranged ensure that an integrality of motor-driven mechanism 19 Yu single unit system, And make the fixing axle 7 of setting that there is a supporting point by the pedestal 6 of setting, while it being made to reach a company with pedestal 3 Relationship is connect, closes the stability of lid mechanism 4 to increase and automatically uncap, the top of the fixing axle is fixedly installed with Z axis motor 17, the third mould group 15, the second mould group 14 and the first mould group 8 are by tightening axle 13 through connection, the top of the tightening axle 13 End, which is fixedly installed with, tightens motor 16, and the first mould group 8 and dial feed structure 10 are flexibly connected by culture vessel 9, institute State automatically to uncap and close the periphery of lid mechanism 4 and be arranged with seal closure 1, in use, by process control Z axis motor 17 drive it is complete from Dynamic the first mould group 8 closed in lid mechanism 4 of uncapping, the second mould group 14 and third mould group 15 move up and down to operating position, tighten electricity Machine 16 drives tightening axle 13 to switch bottle cap, achievees the purpose that automatically opening and closing, and close lid mechanism 4 by being set in automatically to uncap The seal closure 1 of periphery seals off the parts such as motor, cable, while in the enterprising action sealing of whole axis, reaching protection part With the purpose for guaranteeing to match 18 cleanliness of liquid storehouse, the back side of the seal closure 1 is fixedly installed with full-automatic liquid relief fluid body 2, makes Used time is started to work by the motor rotating mechanism 19 of setting, and the dial feed structure 10 of setting is driven to start turning, thus It closes 4 bottom of lid mechanism so that the culture vessel 9 of setting is moved to automatically to uncap and carries out operation of uncapping, and be moved to the complete of setting Automatic 2 bottom of liquid relief fluid body carries out liquid relief to it and operates with liquid, then is moved to automatically uncapping for setting and closes 4 bottom of lid mechanism Portion carry out close lid operation, by this operating process solve current automation/semi-automation with liquid be unable to reach GMP close advise ask Topic, and work efficiency is high, cost of labor is low.
Working principle of the present invention: in use, the motor rotating mechanism 19 by setting is started to work, and turning for setting is driven Disk feeding mechanism 10 starts turning, so that the culture vessel 9 of setting, which is moved to automatically to uncap, closes 4 bottom of lid mechanism, leads to Crossing process control Z axis motor 17 drives the first mould group 8, the second mould group 14 and third mould group 15 of setting to move up and down to working position It sets, and the motor 16 of tightening by being arranged drives tightening axle 13 to carry out operation of uncapping, and the full-automatic liquid relief for being moved to setting is matched 2 bottom of liquid mechanism carries out liquid relief to it and operates with liquid, then is moved to automatically uncapping for setting and closes 4 bottom of lid mechanism and carry out pass lid Operation, in cycles, single unit system structure is simple, and work efficiency is high, and cost of labor is low, reaches GMP and closes rule, has certain push away Wide value.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (6)

1. a kind of novel cell culture vessel, including seal closure (1), full-automatic liquid relief fluid body (2), pedestal (3), it is complete from Dynamic uncap closes lid mechanism (4) and mounting base (5), it is characterised in that: it is offered through-hole (20) at the top of the pedestal (3), it is described The inside of through-hole (20) is provided through with liquid storehouse (18), described to be fixedly installed with motor rotating mechanism with liquid storehouse (18) bottom (19), the motor rotating mechanism (19) is fixedly connected with liquid storehouse (18) by rotating seal ring (21), the motor rotation Mechanism (19) and pedestal (3) are fixedly mounted by mounting base (5), described to be fixedly installed with dial feed with liquid storehouse (18) top Structure (10) is provided with hollow design (11) on the dial feed structure (10), is fixedly installed with bottom at the top of the pedestal (3) Seat (6) is provided at the top of the pedestal (6) automatically to uncap and close lid mechanism (4), and described automatically uncap closes lid mechanism (4) It include transmission parts (12), third mould group (15), the second mould group (14) and the first mould group (8), the transmission parts (12), Three mould groups (15), the second mould group (14), the first mould group (8) and pedestal (6) are by fixing axle (7) through connection, the fixing axle Top be fixedly installed with Z axis motor (17), the third mould group (15), the second mould group (14) and the first mould group (8) by twist Mandrel (13) through connection, the top of the tightening axle (13), which is fixedly installed with, tightens motor (16), the first mould group (8) and Dial feed structure (10) is flexibly connected by culture vessel (9), and described automatically uncap is closed the periphery of lid mechanism (4) and be arranged with Seal closure (1), the back side of the seal closure (1) are fixedly installed with full-automatic liquid relief fluid body (2).
2. the novel cell culture vessel of one kind according to claim 1, it is characterised in that: the turntable (10) is in five jiaos Starriness.
3. the novel cell culture vessel of one kind according to claim 1, it is characterised in that: fixing axle (7) setting There are three groups, and size is equal.
4. the novel cell culture vessel of one kind according to claim 1, it is characterised in that: the pedestal (3) and installation Seat (5) is fixedly connected by electric welding.
5. the novel cell culture vessel of one kind according to claim 1, it is characterised in that: the rotating seal ring (21) Inner diameter size and with liquid storehouse (18) outer diameter it is equal in magnitude.
6. the novel cell culture vessel of one kind according to claim 1, it is characterised in that: the first mould group (8), Perforation is offered in two mould groups (14) and third mould group (15).
CN201811397348.3A 2018-11-22 2018-11-22 A kind of novel cell culture vessel Pending CN109251863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811397348.3A CN109251863A (en) 2018-11-22 2018-11-22 A kind of novel cell culture vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811397348.3A CN109251863A (en) 2018-11-22 2018-11-22 A kind of novel cell culture vessel

Publications (1)

Publication Number Publication Date
CN109251863A true CN109251863A (en) 2019-01-22

Family

ID=65042020

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811397348.3A Pending CN109251863A (en) 2018-11-22 2018-11-22 A kind of novel cell culture vessel

Country Status (1)

Country Link
CN (1) CN109251863A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110252430A (en) * 2019-07-02 2019-09-20 英诺维尔智能科技(苏州)有限公司 A kind of full-service fluid operating platform
CN110511872A (en) * 2019-09-29 2019-11-29 深圳赛动生物自动化有限公司 Cell batch automatic production equipment and its working method
CN110538592A (en) * 2019-09-29 2019-12-06 深圳赛动生物自动化有限公司 Automatic liquid preparation device and working method thereof
CN117947138A (en) * 2024-03-27 2024-04-30 佳木斯大学 In-vitro cytotoxicity test method for oral cavity material

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009291104A (en) * 2008-06-04 2009-12-17 Kawasaki Heavy Ind Ltd Automatic cell culture apparatus
CN102533548A (en) * 2010-12-22 2012-07-04 株式会社日立制作所 Cell culture apparatus
JP2012217435A (en) * 2011-04-13 2012-11-12 Hitachi Ltd Cell culture device
JP2013031461A (en) * 2012-11-16 2013-02-14 Hitachi Ltd Automated culturing apparatus
US20140087455A1 (en) * 2011-04-13 2014-03-27 Hitachi, Ltd. Cell Culture Device and Transport Device
WO2015118638A1 (en) * 2014-02-06 2015-08-13 株式会社日立製作所 Device for automatically exchanging culture medium, and cell culture device
US20160017271A1 (en) * 2013-03-25 2016-01-21 Hitachi, Ltd. Cell culturing device, culturing vessel, and holding vessel
CN206052036U (en) * 2016-08-29 2017-03-29 宁波键一生物科技有限公司 Fully-automatic intelligent incubator
CN206308374U (en) * 2016-12-30 2017-07-07 宁波键一生物科技有限公司 A kind of fully-automatic intelligent cell culture apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009291104A (en) * 2008-06-04 2009-12-17 Kawasaki Heavy Ind Ltd Automatic cell culture apparatus
CN102533548A (en) * 2010-12-22 2012-07-04 株式会社日立制作所 Cell culture apparatus
JP2012217435A (en) * 2011-04-13 2012-11-12 Hitachi Ltd Cell culture device
US20140087455A1 (en) * 2011-04-13 2014-03-27 Hitachi, Ltd. Cell Culture Device and Transport Device
JP2013031461A (en) * 2012-11-16 2013-02-14 Hitachi Ltd Automated culturing apparatus
US20160017271A1 (en) * 2013-03-25 2016-01-21 Hitachi, Ltd. Cell culturing device, culturing vessel, and holding vessel
WO2015118638A1 (en) * 2014-02-06 2015-08-13 株式会社日立製作所 Device for automatically exchanging culture medium, and cell culture device
CN206052036U (en) * 2016-08-29 2017-03-29 宁波键一生物科技有限公司 Fully-automatic intelligent incubator
CN206308374U (en) * 2016-12-30 2017-07-07 宁波键一生物科技有限公司 A kind of fully-automatic intelligent cell culture apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110252430A (en) * 2019-07-02 2019-09-20 英诺维尔智能科技(苏州)有限公司 A kind of full-service fluid operating platform
CN110252430B (en) * 2019-07-02 2021-05-07 英诺维尔智能科技(苏州)有限公司 Multifunctional liquid operating platform
CN110511872A (en) * 2019-09-29 2019-11-29 深圳赛动生物自动化有限公司 Cell batch automatic production equipment and its working method
CN110538592A (en) * 2019-09-29 2019-12-06 深圳赛动生物自动化有限公司 Automatic liquid preparation device and working method thereof
CN110511872B (en) * 2019-09-29 2023-08-22 深圳赛动生物自动化有限公司 Automatic cell batch production equipment and working method thereof
CN110538592B (en) * 2019-09-29 2024-03-29 深圳赛动生物自动化有限公司 Automatic liquid preparation device and working method thereof
CN117947138A (en) * 2024-03-27 2024-04-30 佳木斯大学 In-vitro cytotoxicity test method for oral cavity material

Similar Documents

Publication Publication Date Title
CN109251863A (en) A kind of novel cell culture vessel
CN209178406U (en) A kind of novel cell culture vessel
CN103487595A (en) Kit for full-automatic chemiluminiscence immunity analyzer
CN204079435U (en) A kind of culture packaging device for test tube
CN110550589B (en) Automatic cover opening and closing system for sample bottle
CN209601154U (en) A kind of rotary pressing seal type sample bottle
CN203903058U (en) Bottle stopper for glass bottle
CN202638452U (en) Centrifugal tube
CN206020093U (en) Environmental protection unmanned plane water sampling container
CN111167355A (en) Symmetrical output disc type turnover oscillator
CN208149836U (en) Column box body automatic labeling stamp device
CN211988343U (en) Symmetrical output disc type turnover oscillator
CN206172164U (en) Can carry high leakproofness's reagent bottle
CN103076218B (en) A kind of round turntable
CN207108988U (en) A kind of culture dish for Bioexperiment teaching
CN110510558B (en) Automatic cap screwing device for radioactive sample bottle
CN211766398U (en) Granule equipment for packing
CN110979974B (en) Reagent container sealing device of portable
CN205188268U (en) DNA grinding rod storage bottle
CN217261416U (en) Reagent bottle capable of being assembled with replaceable rubber cushion bottle cap
CN218202801U (en) Culture dish with improved structure
CN204952764U (en) Resin stirred vessel
CN201354215Y (en) Packing box for containing reagent bottle
CN217398417U (en) High-flux quick-opening miniature centrifugal pipe tool
CN219784805U (en) Centrifuge tube of adaptive automation equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination