CN102371015A - Safety pin - Google Patents
Safety pin Download PDFInfo
- Publication number
- CN102371015A CN102371015A CN2011102577289A CN201110257728A CN102371015A CN 102371015 A CN102371015 A CN 102371015A CN 2011102577289 A CN2011102577289 A CN 2011102577289A CN 201110257728 A CN201110257728 A CN 201110257728A CN 102371015 A CN102371015 A CN 102371015A
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- groove
- needle
- slide block
- draw
- locating slot
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Abstract
The invention discloses a safety pin which comprises a pin body, a pin sleeve and a syringe, wherein the pin sleeve is matched with the pin body; the syringe is connected with the pin body; the pin sleeve is axially provided with a chute; the chute comprises a longitudinal slot and a lateral slot which are mutually communicated; the lateral slot comprises a positioning slot and a clamping slot, wherein the positioning slot and the clamping slot are positioned on two sides of the bottom end of the longitudinal slot; one end of the pin body, which approaches to the syringe, is provided with a sliding block; the sliding block is suitable for sliding along the chute; one end of the sliding block, which faces to the clamping slot, is less than one end of the sliding block, which faces to the positioning slot; at least one of the upper side and the lower side of the opening end of the positioning slot, which faces to the longitudinal slot, is provided with a bulge; therefore, the sliding block can conveniently pass through the bulge to enter the longitudinal slot; once the sliding block slides out of the positioning slot, the sliding block can not pass through the bulge to go back to the positioning slot because one end of the sliding block, which faces to the positioning slot, is bigger; and therefore, the safety pin is not suitable to use again.
Description
Technical field
The invention belongs to technical field of medical instruments, be specifically related to a kind of safty pin.
Background technology
At present, the syringe of medical industry use all is a disposable syringe; For disposable entry needle, after injection, need to use the spryinge destroying device of specialty that syringe needle is partly destroyed, to prevent the generation of secondary pollution.But even if use spryinge destroying device, medical personnel are also very easily scratched by syringe needle after injection, cause viral infection, can't medical personnel's safety effectively be ensured.
For this reason, Chinese patent document CN1515328A discloses a kind of multifunctional safe trocar device, and it comprises that a lengthwise cylindrical shell base unit, overlaps the needle guard that the needle body and that is fixed in this lengthwise cylindrical shell base unit is placed in this lengthwise cylindrical shell base unit periphery; Said lengthwise cylindrical shell base unit is that front end has one than the path body; The body rear end has one than the large-diameter pipe body; Saidly respectively be provided with a flange on the diameter opposite position in its back-end than the large-diameter pipe body; Said two flanges can screw togather or be solidly plugged in the front end of said injection tube, and are provided with a slide block in said than large-diameter pipe body front end peripheral part; Said needle body closely cover be fixed in said lengthwise cylindrical shell base unit front end than on the path body; Said needle guard is a hollow tube; Its periphery has a long chute; Said chute comprises always and wherein, directly to comprise a front end stopper section, turning point, an outer end to portion to a portion and a transverse groove; Said transverse groove then comprise a square location indentations, a locking square groove have one be located at locking square groove upstream end the portion that places restrictions on, the said portion of placing restrictions on is that a slice assembly and the unitary bulk material of safe needle guard fuse; Said needle guard can be placed in the periphery of said cylindrical shell base unit; And the slide block on the said cylindrical shell base unit just can move in the cannelure of said needle guard; And receive good guiding, when said slide block moved to said cannelure front end stopper section, the front end that the needle body that is fixed in said cylindrical shell base unit front end stretches out needle guard used in order to injection; When said slide block button terminates in turning point, the traversing section rear end location indentations of cannelure; Said needle body is shunk in the needle guard and receive and hiding completely, cross by location indentations when said slide block and saidly place restrictions on portion and when being locked in the locking square groove, said slide block is that deadlock is in the locking square groove; And needle guard can not be moved again, said needle body is shunk in the needle guard and stop motionless.
Safty pin in the technique scheme; Earlier the self-align recess of the slide block of base unit is shifted out in use; Move forward in chute through traversing section, turning point; When said slide block moved to said cannelure front end stopper section, the front end that the needle body that is fixed in said cylindrical shell base unit front end stretches out needle guard is injectable just.After injection finished, needle guard only needed contrary operation, and slide block is promptly along front end stopper section, turning point, rear end and the traversing section of chute and during the moving earlier location indentations to the rear end, needle body promptly is hidden within the needle guard once again.When said base unit was screwed in a clockwise direction, slide block was just crossed the portion of placing restrictions on by location indentations and is got in the locking square groove, thereby realized the locking to slide block.Like this, along with the locking of slide block, syringe needle is locked in the safe needle guard simultaneously, can't be moved out of use once again, thereby has guaranteed its safety.
Can see from above-mentioned use; After syringe was finished using, needle guard only needed contrary operation, and slide block is promptly along front end stopper section, turning point, rear end and the traversing section of chute and during the moving earlier location indentations to the rear end; Needle body promptly is hidden within the needle guard once again, the state before promptly recovering to use.So just buried hidden danger, be easy to cause doctors and patients' superinfection problem for reusing disposable syringe.
Summary of the invention
For this reason; Technical problem to be solved by this invention is to get into the locking square groove through said slide block is crossed the portion of placing restrictions on by location indentations after syringe of the prior art uses; Promptly can recover the factory state of syringe; Thereby reuse, cause the problem of superinfection easily, and then the safty pin that can't return to factory state again after a kind of the use, can effectively avoid superinfection is provided.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is following:
A kind of safty pin comprises needle body, the needle guard that cooperates with said needle body, the injection tube that is connected with said needle body; Said needle body comprises the fixture of syringe needle and fixing said syringe needle; Said needle guard is the hollow tube that an end is provided with the syringe needle outlet, on said body, axially offers chute, and this chute comprises cannelure and the transverse groove that is interconnected; Said transverse groove comprises locating slot and the draw-in groove that is positioned at said cannelure bottom; Said needle body is provided with slide block near said injection tube one end, and said slide block is suitable for sliding along said chute; The length of said cannelure is more than or equal to the distance of said slide block to needle point, and the distance of said slide block to needle point exports the distance of an end to said syringe needle outlet greater than said cannelure near syringe needle; Said slider surface to its width of an end of draw-in groove less than a end towards locating slot; Said locating slot is provided with convexity towards at least one side of opening upper and lower sides of said cannelure; Distance between distance between said convexity and the said locating slot sidewall or relative two the said convexities, less than said slider surface to the width of locating slot one end and greater than the width of said slider surface to draw-in groove one end.
Said slide block is " D " shape and is provided with, and its arc end is towards said draw-in groove, and its flat end is towards said locating slot.
Said draw-in groove is provided with convexity towards at least one side of opening upper and lower sides of said cannelure.
Corresponding said raised position place, said draw-in groove below is provided with the bottom perforate.
Said bottom perforate ovalize is provided with.
Corresponding said raised position place, said draw-in groove top is provided with the top perforate.
The rectangular triangle setting of said top perforate.
At said needle guard outer wall, along circumferentially being provided with anti-slip ring.
At said needle guard inwall, said locating slot below is provided with and is suitable for the groove that said slide block gets into said needle guard when mounted.
Said slider surface to an end of draw-in groove its with respect to the fixture surface height less than a end towards locating slot.
Technical scheme of the present invention is compared prior art and is had following beneficial technical effects:
(1) safty pin according to the invention comprises needle body, the needle guard that cooperates with said needle body, and with the injection tube that said needle body is connected, said needle body comprises the fixture of syringe needle and fixing said syringe needle; Said needle guard is the hollow tube that an end is provided with the syringe needle outlet, on said body, axially offers chute, and this chute comprises cannelure and the transverse groove that is interconnected; Said transverse groove comprises locating slot and the draw-in groove that is positioned at both sides, said cannelure bottom; Said needle body is provided with slide block near said injection tube one end, and said slide block is suitable for sliding along said chute; Said slider surface to its width of an end of draw-in groove less than a end towards locating slot; Said locating slot is provided with convexity towards at least one side of opening upper and lower sides of said cannelure.
During original state; Said slide block button terminates in the said locating slot; Because less than the end towards locating slot, said like this slide block can utilize protruding elasticity to overcome protruding resistance and enter in the middle of the said cannelure said slider surface easily to its width of an end of draw-in groove.And in a single day said slide block skids off from said locating slot; Since its towards an end width of locating slot greater than the distance between the distance between said convexity and the said locating slot sidewall or relative two the said convexities, so can not return in the said locating slot.Like this, when said slide block during, can explain and be equipped with that this safty pin was to use that the secondary of having stopped the disposable safe pin uses in said locating slot outside.
(2) safty pin according to the invention, said draw-in groove is provided with convexity towards at least one side of opening upper and lower sides of said cannelure.Because less than the end towards locating slot, can cross said convexity easily and enter in the middle of the said draw-in groove by said like this slide block to its width of an end of draw-in groove for said slider surface.And in case said slide block gets in the said draw-in groove, because its end width towards locating slot is bigger, skid off from said draw-in groove so can not recross said convexity.
(3) safty pin according to the invention, corresponding said raised position place, said draw-in groove below is provided with the bottom perforate, and corresponding said raised position place, perhaps said draw-in groove top is provided with the top perforate.The purpose that perforate is set is; When said slide block desire enters into said draw-in groove from said cannelure; Part between said convexity and the said perforate can produce an elastic deformation towards said perforate, thereby has enlarged the A/F of said draw-in groove, has made things convenient for the entering of said slide block.Get into after the said draw-in groove and work as said slide block; Elastic deformation disappears; The opening of said draw-in groove recovers original size, and said in addition slider surface is bigger to an end width of locating slot, and said like this slide block can not recross said convexity and from said draw-in groove, skid off.
Description of drawings
For the present invention more is expressly understood, be described in further detail below in conjunction with the accompanying drawing specific embodiments of the invention.Wherein,
Fig. 1 is the structure chart of needle body according to the invention;
Fig. 2 is the structure chart of needle guard according to the invention;
Fig. 3 is the upward view of needle guard according to the invention;
Fig. 4 is the state diagram of slide block according to the invention when moving to said cannelure top;
Fig. 5 is the state diagram of slide block button according to the invention when terminating in said locating slot;
Fig. 6 is the state diagram of slide block button according to the invention when terminating in said draw-in groove;
Fig. 7 is the structure chart of the another embodiment of needle guard according to the invention;
Fig. 8 is the state diagram after each assembly of safty pin according to the invention is assembled;
Reference numeral is expressed as among the figure: 1-needle body, 101-syringe needle, 102-fixture, 103-slide block, 2-needle guard, the outlet of 201-syringe needle; The 202-groove, 3-chute, 301-cannelure, 302-transverse groove, 4-locating slot; The 5-draw-in groove, 6-is protruding, the 7-perforate, 8-prevents slip ring, the 9-injection tube.
The specific embodiment
Safty pin of the present invention, as shown in Figure 8, comprise needle body 1, needle guard 2, the injection tube 9 that is connected with said needle body 1 with said needle body 1 cooperation.As depicted in figs. 1 and 2, said needle body 1 comprises syringe needle 101 and fixture 102; Said needle guard 2 is the hollow tube that an end is provided with syringe needle outlet 201, on said body, axially offers chute 3, and this chute 3 comprises cannelure 301 and the transverse groove 302 that is interconnected; Said transverse groove 302 comprises locating slot 4 and the draw-in groove 5 that is positioned at said cannelure 301 bottoms; Said needle body 1 is provided with slide block 103 near said injection tube 9 one ends, and said slide block 103 is suitable for sliding along said chute 3; The length of said cannelure 301 is more than or equal to the distance of said slide block 103 to needle point, and the distance of said slide block 103 to needle point is greater than the distance of said cannelure 301 near syringe needle 101 outlets one end to said syringe needle 101 outlets;
As shown in Figure 3, at said needle guard 2 inwalls, said locating slot 4 belows are provided with and are suitable for the groove 202 that said slide block 103 gets into said needle guard 2 when mounted.Groove 202 is set can be installed in said syringe needle 1 in the said needle guard 2 easily.Can see from Fig. 4; Slide block 103 on said needle body 1 fixture 102 just can move in the cannelure 301 of said needle guard 2; When said slide block 103 moved to said cannelure 301 tops, the syringe needle 101 of said needle body 1 stretched out the syringe needle outlet 201 of needle guard 2 in order to the injection use, can find out from Fig. 5, Fig. 6; When said slide block 103 buttons terminate in said locating slot 4 and draw-in groove 5, make in the said needle body 1 withdrawal needle guard 2 and receive completely and hiding.
Can see from Fig. 1-Fig. 6, said slide block 103 towards its width of an end of draw-in groove 5 less than a end towards locating slot 4; Said locating slot 4 is provided with protruding 6 towards at least one side of opening upper and lower sides of said cannelure 301; Said protruding 6 and said locating slot 4 sidewalls between distance or relative two said protruding 6 between distance, less than said slide block 103 towards the width of locating slot 4 one ends and greater than the width of said slide block 103 towards draw-in groove 5 one ends.In the present embodiment, said slide block 103 is the setting of D font, and its arc end is towards said draw-in groove 5, and its flat end is towards said locating slot 4, thus make said slide block 103 towards its width of an end of draw-in groove 5 less than a end towards locating slot 4.Said locating slot 4 is provided with protruding 6 towards the opening downside of said cannelure 301.Said draw-in groove 5 is provided with convexity 6 towards the opening upside of said cannelure 301, and corresponding said protruding 6 positions, said draw-in groove 5 belows are provided with bottom perforate 7, said bottom perforate 7 ovalize settings.And at said needle guard 2 outer walls, along circumferentially being provided with anti-slip ring 8, the purpose that said anti-slip ring 8 is set is to make things convenient for the user finger grip.
Fig. 7 has provided another embodiment of needle guard 2 described in the safty pin according to the invention; Draw-in groove described in the present embodiment 5 is relatively set with two convexities 6 in both sides up and down towards the opening of said cannelure 301; And corresponding said protruding 6 positions of said draw-in groove 5 upper and lowers are provided with perforate 7; Said top perforate 7 rectangular triangle settings, said bottom perforate 7 ovalize settings.
In other embodiment of safe needle guard according to the invention; Said slide block 103 can be arranged to other Any shape; As long as satisfy its width of an end towards draw-in groove 5 less than a end towards locating slot 4; As wherein an edged surface is to locking groove can be arranged to triangle, and relative base is towards locating slot 4.Said locating slot 4 and draw-in groove 5 are provided with protruding 6 towards at least one side of opening upper and lower sides of said cannelure 301, can be provided with protrudingly 6 at upside, also can be provided with protrudingly 6 at downside, can also be provided with protruding 6 simultaneously in both sides up and down.Corresponding said protruding 6 positions in said draw-in groove 5 tops or below are provided with top perforate 7 or bottom perforate 7, and said top perforate 7 and bottom perforate 7 perhaps are set simultaneously; Said perforate 7 can be arranged to other Any shape, like circle, rectangle etc., the purpose that perforate 7 is set be to make said protruding 6 and said perforate 7 between part produce elastic deformation, convenient said slide block 103 gets into said draw-in groove 5.
Preferably, said slide block 103 towards an end of draw-in groove 5 its with respect to the fixture surface height less than a end towards locating slot 4.
Safty pin of the present invention, the fixture 102 of said needle body 1 can be plugged on the injection tube 9.As shown in Figure 8, during original state, said slide block 103 buttons terminate in the said locating slot 4.Screw said needle guard 2; Can make said slide block 103 skid off said locating slot 4 and enter in the middle of the said cannelure 301; When said slide block 103 moves to said cannelure 301 front ends, be fixed in the syringe needle outlet 201 that needle body 1 on the said injection tube 9 stretches out needle guard 2 and use in order to injection.After injection finished, 2 of needle guards needed contrary operation, and slide block 103 is promptly slided back along said cannelure 301, and said needle body 1 promptly is hidden within the needle guard 2 once again.Screw said needle guard 2, slide block 103 is got in the draw-in groove 5.Continuing to screw said needle guard 2 can unload said needle guard device from said injection tube 9.
When said slide block 103 buttons terminate in the said locating slot 4; Because less than the end towards locating slot 4, said like this slide block 103 can utilize protruding 6 elasticity to overcome protruding 6 resistance and enter in the middle of the said cannelure 301 said slide block 103 easily towards its width of an end of draw-in groove 5.And in a single day said slide block 103 skids off from said locating slot 4, because its end width towards locating slot 4 is bigger, so can not return in the said locating slot 4.Like this, when said slide block 103 during, can explain and be equipped with that this safty pin was to use that the secondary of having stopped the disposable safe pin uses in said locating slot 4 outsides.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give to all embodiments exhaustive, and the conspicuous variation of being extended out thus or the change still be among the protection domain of the invention claim.
Claims (10)
1. a safty pin comprises needle body, the needle guard that cooperates with said needle body, the injection tube that is connected with said needle body;
Said needle body comprises the fixture of syringe needle and fixing said syringe needle;
Said needle guard is the hollow tube that an end is provided with the syringe needle outlet, on said body, axially offers chute, and this chute comprises cannelure and the transverse groove that is interconnected; Said transverse groove comprises locating slot and the draw-in groove that is positioned at said cannelure bottom;
Said needle body is provided with slide block near said injection tube one end, and said slide block is suitable for sliding along said chute;
The length of said cannelure is more than or equal to the distance of said slide block to needle point, and the distance of said slide block to needle point exports the distance of an end to said syringe needle outlet greater than said cannelure near syringe needle;
It is characterized in that: said slider surface to its width of an end of draw-in groove less than a end towards locating slot; Said locating slot is provided with convexity towards at least one side of opening upper and lower sides of said cannelure; Distance between distance between said convexity and the said locating slot sidewall or relative two the said convexities, less than said slider surface to the width of locating slot one end and greater than the width of said slider surface to draw-in groove one end.
2. safty pin according to claim 1 is characterized in that, said slide block is " D " shape and is provided with, and its arc end is towards said draw-in groove, and its flat end is towards said locating slot.
3. safty pin according to claim 1 and 2 is characterized in that, said draw-in groove is provided with convexity towards at least one side of opening upper and lower sides of said cannelure.
4. safty pin according to claim 3 is characterized in that, corresponding said raised position place, said draw-in groove below is provided with the bottom perforate.
5. safty pin according to claim 4 is characterized in that, said bottom perforate ovalize is provided with.
6. according to claim 3 or 4 or 5 described safty pins, it is characterized in that corresponding said raised position place, said draw-in groove top is provided with the top perforate.
7. safty pin according to claim 6 is characterized in that, the rectangular triangle setting of said top perforate.
8. according to the arbitrary described safty pin of claim 1-7, it is characterized in that, at said needle guard outer wall, along circumferentially being provided with anti-slip ring.
9. according to the arbitrary described safty pin of claim 1-7, it is characterized in that at said needle guard inwall, said locating slot below is provided with and is suitable for the groove that said slide block gets into said needle guard when mounted.
10. according to the arbitrary described safty pin of claim 1-7, it is characterized in that, said slider surface to an end of draw-in groove its with respect to the fixture surface height less than a end towards locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257728.9A CN102371015B (en) | 2011-09-02 | 2011-09-02 | Safty pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257728.9A CN102371015B (en) | 2011-09-02 | 2011-09-02 | Safty pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102371015A true CN102371015A (en) | 2012-03-14 |
| CN102371015B CN102371015B (en) | 2016-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110257728.9A Active CN102371015B (en) | 2011-09-02 | 2011-09-02 | Safty pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102371015B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706410A (en) * | 2012-09-29 | 2014-04-09 | 益善生物技术股份有限公司 | Liquid transfer communicating apparatus, and transfer method |
| CN109771079A (en) * | 2019-03-05 | 2019-05-21 | 高爱文 | A kind of continuous syringe of animal doctor |
| CN114225158A (en) * | 2021-12-25 | 2022-03-25 | 南华大学 | Puncture-proof syringe and self-destruction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108140A (en) * | 1994-03-08 | 1995-09-13 | 陈俊雄 | Safety syringe reservoir of closing gate type |
| CN1515328A (en) * | 2003-01-08 | 2004-07-28 | 汪贤宗 | Multifunctional safety needle cover device |
| WO2005105184A1 (en) * | 2004-04-30 | 2005-11-10 | Chang-Ming Yang | Disposable safety syringe |
| WO2007115481A1 (en) * | 2006-03-28 | 2007-10-18 | Jianquan Li | Self-destroying disposable syringe and self-destroying method thereof |
| CN202366271U (en) * | 2011-09-02 | 2012-08-08 | 汪贤宗 | Safety needle |
-
2011
- 2011-09-02 CN CN201110257728.9A patent/CN102371015B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108140A (en) * | 1994-03-08 | 1995-09-13 | 陈俊雄 | Safety syringe reservoir of closing gate type |
| CN1515328A (en) * | 2003-01-08 | 2004-07-28 | 汪贤宗 | Multifunctional safety needle cover device |
| WO2005105184A1 (en) * | 2004-04-30 | 2005-11-10 | Chang-Ming Yang | Disposable safety syringe |
| WO2007115481A1 (en) * | 2006-03-28 | 2007-10-18 | Jianquan Li | Self-destroying disposable syringe and self-destroying method thereof |
| CN202366271U (en) * | 2011-09-02 | 2012-08-08 | 汪贤宗 | Safety needle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706410A (en) * | 2012-09-29 | 2014-04-09 | 益善生物技术股份有限公司 | Liquid transfer communicating apparatus, and transfer method |
| CN103706410B (en) * | 2012-09-29 | 2015-09-30 | 益善生物技术股份有限公司 | Liquid transfer intercommunicating device and transfer method |
| CN109771079A (en) * | 2019-03-05 | 2019-05-21 | 高爱文 | A kind of continuous syringe of animal doctor |
| CN114225158A (en) * | 2021-12-25 | 2022-03-25 | 南华大学 | Puncture-proof syringe and self-destruction method thereof |
| CN114225158B (en) * | 2021-12-25 | 2023-08-29 | 南华大学 | Puncture-proof injector and self-destruction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102371015B (en) | 2016-04-20 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171211 Address after: 515300 Guangdong province Puning City quicksand North Nanyuan Industrial Zone Patentee after: GUANGDONG HAIOU MEDICAL APPARATUS STOCK Co.,Ltd. Address before: 518104, No. 267-269, Wan An Road, Wan Feng Village, manholes Town, Guangdong, Shenzhen Patentee before: Wang Xianzong |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Safety needle Effective date of registration: 20230324 Granted publication date: 20160420 Pledgee: Agricultural Bank of China Limited Puning City Branch Pledgor: GUANGDONG HAIOU MEDICAL APPARATUS STOCK Co.,Ltd. Registration number: Y2023980036077 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |