CN103110997B - Straight type single-hand remaining needle - Google Patents
Straight type single-hand remaining needle Download PDFInfo
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- CN103110997B CN103110997B CN201310082021.8A CN201310082021A CN103110997B CN 103110997 B CN103110997 B CN 103110997B CN 201310082021 A CN201310082021 A CN 201310082021A CN 103110997 B CN103110997 B CN 103110997B
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- Prior art keywords
- needle
- protective sleeve
- remaining needle
- puncture
- remaining
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- 230000001681 protective effect Effects 0.000 claims description 47
- 238000001802 infusion Methods 0.000 claims description 20
- 239000012634 fragment Substances 0.000 claims description 7
- 206010011409 Cross infection Diseases 0.000 abstract description 3
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 3
- 239000008280 blood Substances 0.000 description 11
- 210000004369 blood Anatomy 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 210000004204 blood vessel Anatomy 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 210000003414 extremity Anatomy 0.000 description 3
- 210000005224 forefinger Anatomy 0.000 description 3
- 210000004247 hand Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 208000030507 AIDS Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 206010038743 Restlessness Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 229940030225 antihemorrhagics Drugs 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000000025 haemostatic effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000006454 hepatitis Diseases 0.000 description 1
- 231100000283 hepatitis Toxicity 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a straight type single-hand remaining needle which comprises a remaining needle body, a protection cover and a puncture needle, wherein the protection cover is connected with the rear portion of the remaining needle body, and the puncture needle is installed in the remaining needle body and the protection cover. The puncture needle is L-shaped and provided with a protruding handle. The puncture needle can be separated with the remaining needle body by moving the puncture needle handle backwards, and the puncture needle can drop into the protection cover. The remaining needle can achieve single-hand operations and meanwhile achieve the purposes of safe protection and cross infection preventing, and thus the remaining needle is convenient in clinical use.
Description
Technical field
The invention belongs to medical care, relate to a kind of transfusion medical apparatus and instruments, the particularly straight remaining needle of a kind of safety of one-hand operation.
Background technology
Venous detaining needle can alleviate the misery that patient causes due to repeated localised puncture, protection blood vessel, is conducive to clinical application and urgent rescue, reduces the workload of nursing staff.
Current remaining needle is on the market formed primarily of flexible pipe and puncture needle, need operator's left hand fix site of puncture and tighten local skin when puncturing, the right hand is held pin and is punctured, after seeing blood back, operator need unclamp the left hand of fixing site of puncture, fix retaining needle flexible tube with left hand and send pipe forward, the right hand extracts nook closing member out, completes puncture.Remaining needle must be operated operator's two handss cooperations in whole process, puncture just can be made to complete smoothly.But the gerontal patient of the infant of easily struggling and skin relative relaxation is twitched again or or restless adult, unclamp the left hand of fixing site of puncture, when fixing retaining needle flexible tube with left hand, likely cause flexible pipe front end to deviate from blood vessel, make follow-up to send tube failure.There is no the remaining needle that singlehanded can complete whole piercing process at present to occur.
About straight remaining needle, the straight remaining needle of current Clinical practice often needs at retaining needle flexible tube leading portion pressing haemostatic, connects rapidly joint or transfusion device simultaneously, and it is comparatively large that this operation completes difficulty, easily causes blood to flow out beyond remaining needle along flexible pipe.
In recent years, the infection of acquired immune deficiency syndrome (AIDS), hepatitis virus etc. is caused to become the problem of extensive concern because medical worker is stung by the sharp blade tip of the entry needle of blood contamination etc. by mistake.A lot of remaining needle is after used puncture needle is separated with flexible pipe in the market, and puncture tip still exposes, and very easily stabs medical personnel, the life and health of medical personnel is on the hazard, and arbitrarily puts simultaneously, causes environmental pollution.
Summary of the invention
In view of this, the problem that the present invention solves is for the deficiencies in the prior art, provides a kind of structure simple, easy to use, singlehanded can complete whole piercing process and with the safety straight type single-hand remaining needle of needle point defencive function.
A kind of straight type single-hand remaining needle, comprise remaining needle main body and puncture needle, it is characterized in that, further comprises the protective sleeve being connected to remaining needle main body rear, described puncture needle is L-type, comprise the tip portion for puncturing, and the puncture needle handle part perpendicular to needle point and for operating, described protective sleeve is provided with a chute, described puncture needle handle part is arranged in described chute actively, described remaining needle main body is connected by a shrapnel device with between protective sleeve, described shrapnel device touches shrapnel device by the slip of puncture needle handle part and is separated, to realize the dismounting between described remaining needle main body and protective sleeve.
Further, described remaining needle main body comprises infusion tube, bucket-shaped indwelling needle handle and positive pressure connector, infusion tube and indwelling needle handle connector place are provided with a check valve, and be threaded connection between indwelling needle handle and positive pressure connector, the end surface of described positive pressure connector offers groove.
Further, described remaining needle main body is also equipped with a needle tip protection sleeve.
Further; described protective sleeve is the cylindrical container that tail end is closed; the positive pressure connector of its end is connected to remaining needle main body; described protective sleeve front end is provided with diaphragm seal; described diaphragm seal central authorities are provided with a through hole only holding a root puncture pin and pass through; also be provided with a recess notch in described protective sleeve, described puncture needle surface is provided with a needle point groove, and this recess notch can engage with described needle point groove.
Further, described puncture needle surface is provided with a needle point groove, and this puncture needle is hollow needle tubing from needle point to the position of groove.
Further, the distance between described recess notch and diaphragm seal is greater than the length of tip to needle point groove of described needle tip.
Further; described shrapnel device comprises perpendicular to described recess notch and the grab extended to beyond protective sleeve; and it is parallel with described diaphragm seal and establish and be against the elastic shell fragment that has between described grab and described protective sleeve; described shell fragment is between diaphragm seal and recess notch; described grab and diaphragm seal are cross to be vertically connected, and described protective sleeve can be interlocked by grab with described remaining needle main body.
Compared with prior art, the present invention has the following advantages:
(1) can realize completing whole piercing process with one hand completely, a hands of having liberated operator is beneficial to fixing skin or puncture side limbs, thus makes the puncture of remaining needle more accurate, reduces the injury to patient body, improves medical personnel's work efficiency.
(2) adopt the protective sleeve structure of puncture needle that puncture needle is protected in time, avoid exposing of needle point, stopped the phenomenon that puncture needle easily stabs medical personnel or other staff, reach security protection and prevent the object of cross infection.
(3) be combined check valve and positive pressure connector, to ensure that the situation generation of blood along infusion tube outflow remaining needle can not occur this remaining needle after having punctured, simplify the operating procedure of straight remaining needle, improve the reliability of Clinical practice.
(4) positive pressure connector and indwelling needle handle are threaded connection, and identical with standard infusion connector model, during remaining needle indwelling, can change joint as required.
Accompanying drawing explanation
In order to the technical scheme in the embodiment of the present invention is more clearly described, introduce to the accompanying drawing used required in embodiment simply below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure schematic diagram of straight type single-hand remaining needle in the embodiment of the present invention;
Fig. 2 is the overall structure figure of remaining needle main body in the embodiment of the present invention;
Fig. 3 is the STRUCTURE DECOMPOSITION figure of remaining needle main body in the embodiment of the present invention;
Fig. 4 is the structural representation of puncture needle in the embodiment of the present invention;
Fig. 5 is the structural representation of protective sleeve in the embodiment of the present invention;
Fig. 6 is the structural representation of shrapnel device in the embodiment of the present invention;
Fig. 7-1 to Fig. 7-3 is the use block diagram of straight remaining needle in the embodiment of the present invention.
Detailed description of the invention
The invention discloses a kind of straight venous detaining needle of safety that singlehanded can complete whole puncture and send pipe to operate, preferred embodiment shown with reference to the accompanying drawings below, is specifically described the present invention.
A kind of straight type single-hand remaining needle, overall structure as shown in Figure 1, comprises three major parts: remaining needle main body 1, puncture needle 2 and protective sleeve 3.Described remaining needle main body 1 is connected with protective sleeve 3, and described puncture needle 2 passes the centre of remaining needle main body 1 and protective sleeve 3.
As shown in Figures 2 and 3, remaining needle main body 1 comprises the infusion tube 11 of indwelling in human body, bucket-shaped indwelling needle handle 13, and the positive pressure connector 14 for being connected with protective sleeve 3 or transfusion device.The junction of described infusion tube 11 and indwelling needle handle 13 is provided with a check valve 12, and described indwelling needle handle 13 is connected by screw thread (not shown) with between positive pressure connector 14.Wherein infusion tube 11 guides intravasation through puncture needle 2, and transfusion device is connected on positive pressure connector 14, and the liquid of infusion can flow to and be retained in endovascular infusion tube 11, thus reach venous transfusion or medication through positive pressure connector 14, indwelling needle handle 13.Described positive pressure connector 14 can ensure to produce malleation instantaneously when infusing or medication terminates, transfusion device or syringe are separated with remaining needle main body 1 in positive pressure connector 14 inside, makes the flow direction blood vessel in remaining needle, thus the blood vessel blockage avoiding blood back to cause.Described check valve 12 can ensure the flow direction of the liquid in remaining needle, make liquid can only flow to infusion tube 11 from positive pressure connector 14, when remaining needle is retained in human vas, its unidirectional controlling functions can reduce the occurrence probability of remaining needle return blood frozen plug infusion tube 11.Described positive pressure connector 14 end surface is provided with one or a circle groove 15.Described remaining needle main body 1 also comprises a needle tip protection sleeve 4, is the protection facility when remaining needle not yet uses.
As shown in Figure 4, described puncture needle 2 is L-type, comprises needle tip 21, handle 23, and described handle 23 is L-type, and be connected in a straight line with needle tip 21, another side extends to beyond protective sleeve 3.Described needle tip 21 forward position is provided with a needle point groove 22, is hollow structure from needle tip 21 to needle point groove 22, and this structure is conducive to medical personnel in piercing process, observes blood back situation.
As shown in Figure 5, it is cylindric that described protective sleeve 3 profile is similar to that a tail end is closed, front end is slightly large, and this protective sleeve 3 top is provided with closure plate 32, is connected to positive pressure connector 14 end with remaining needle main body 1.Protective sleeve 3 side opening is provided with duct, and this duct is the movable rail of puncture needle handle 23.The inside of protective sleeve 3 is provided with recess notch 31, and when puncture needle needle point groove 22 retreats to this position, this recess notch 31 can engage with the needle point groove 22 of puncture needle 2 front portion, starts shrapnel device 34, makes protective sleeve 3 and remaining needle main body 1 can realize being separated.Protective sleeve diaphragm seal 32 central authorities offer a through hole; only pass through for a root puncture pin; further; this through hole is with the shielding cover be connected with diaphragm seal 32; described shielding cover tilts owing to there being puncture needle 2 to pass; after puncture needle 2 exits this through hole, shielding cover because of material elasticity automatic fall-back and block through hole, thus needle tip cannot be exposed.
As shown in Figure 6; a shrapnel device 34 is also provided with near one end of positive pressure connector in described protective sleeve 3; this device comprise one perpendicular to recess notch, extend to grab 35 beyond protective sleeve; and one is located at described fixed leg 36 rear, the horizontal shell fragment 37 be against between protective sleeve 3 inwall and grab 35; described grab 35 is connected in cross with diaphragm seal 32, and the part between grab 35 and diaphragm seal 32 is used as fixed leg 36.The operation principle of this shrapnel device is: when puncture needle 2 is by recess notch 31, recess notch 31 is forced to strut, shell fragment 37 is compressed, the groove 15 causing grab 35 leading portion to block described positive pressure connector 14 end is downwards drawn close in grab 35 rear end being fulcrum with fixed leg 36 to protective sleeve 3 inwall, make to keep between protective sleeve 3 and remaining needle main body 1 relatively fixing; When puncture needle 2 retreats; until when needle point groove 22 engages completely with recess notch 31; because needle point groove 22 place diameter is less; shell fragment 37 is able to stretching, extension makes recess notch 31 decline; now by this fulcrum of fixed leg 36; grab 35 leading portion is risen, thus grab 35 is unclamped with the groove 15 of positive pressure connector 14, and protective sleeve 3 and remaining needle main body 1 just can realize being separated.
As shown in Fig. 7-1 to Fig. 7-3, the using method of embodiment disclosed by the invention: conventional prick upper tourniquet, sterilization skin, connects transfusion device and aerofluxus, gets out remaining needle pad pasting etc. with after thing, left hand can taught skin or assist immobilized patients limbs, uses right hand complete operation completely.Hand thumb and middle finger clutch protective sleeve 3 both sides, and forefinger is placed in puncture needle handle 23 place, hold pin and stablize, pull out and protect pin cap 4.With proper angle inserting needle directly over target blood, remaining needle is put after seeing blood back, forefinger is exerted oneself backward, needle tip 21 is made slowly partly to exit infusion tube 11, clutch protective sleeve 3 with hand thumb and middle finger and promote whole remaining needle intravasation, forefinger joystick 23 moves simultaneously, make its infusion tube 11 intravasation and puncture needle 2 retreats in infusion tube 11, until infusion tube 11 intravasation completely, after needle tip 21 deviates from positive pressure connector 14 completely, now needle point groove 22 arrives the recess notch 31 in protective sleeve, shrapnel device 34 starts, positive pressure connector 14 is separated with protective sleeve 3.Shielding cover simultaneously in the middle of diaphragm seal 32 falls after rise, and through hole seals, and prevent needle point from exposing, piercing process completes, and unclamps tourniquet, sticks remaining needle pad pasting.Subsequently transfusion device is connected in positive pressure connector 14.Owing to being combined check valve 12 and positive pressure connector 14, just can ensure that blood can not flow out beyond remaining needle.Protective sleeve 3 and the puncture needle 2 entered in protective sleeve 3 are put into the retracting device of specifying.
Positive pressure connector 14 is connected by screw thread with indwelling needle handle 13, identical with standard infusion connector model, during remaining needle indwelling, can change joint as required.
Compared with prior art, the present invention has the following advantages:
(1) can realize completing whole piercing process with one hand completely, a hands of having liberated operator is beneficial to fixing skin or puncture side limbs, thus makes the puncture of remaining needle more accurate, reduces the injury to patient body, improves medical personnel's work efficiency.
(2) adopt the protective sleeve structure of puncture needle that puncture needle is protected in time, avoid exposing of needle point, stopped the phenomenon that puncture needle easily stabs medical personnel or other staff, reach security protection and prevent the object of cross infection.
(3) be combined check valve and positive pressure connector, to ensure that the situation generation of blood along infusion tube outflow remaining needle can not occur this remaining needle after having punctured, simplify the operating procedure of straight remaining needle, improve the reliability of Clinical practice.
(4) positive pressure connector and indwelling needle handle are threaded connection, and identical with standard infusion connector model, during remaining needle indwelling, can change joint as required.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or basic feature, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (6)
1. a straight type single-hand remaining needle, comprise remaining needle main body and puncture needle, it is characterized in that, further comprises the protective sleeve being connected to remaining needle main body rear, described puncture needle is L-type, comprise the tip portion for puncturing, and the puncture needle handle part perpendicular to needle point and for operating, described protective sleeve is provided with a chute, described puncture needle handle part is arranged in described chute actively, described remaining needle main body is connected by a shrapnel device with between protective sleeve, described shrapnel device touches shrapnel device by the slip of puncture needle handle part and is separated, to realize the dismounting between described remaining needle main body and protective sleeve, described protective sleeve front end is provided with diaphragm seal, a recess notch is also provided with in described protective sleeve, described puncture needle surface is provided with a needle point groove, this recess notch can engage with described needle point groove, described shrapnel device comprises perpendicular to described recess notch and the grab extended to beyond protective sleeve, and it is parallel with described diaphragm seal and establish and be against the elastic shell fragment that has between described grab and described protective sleeve, described shell fragment is between diaphragm seal and recess notch, described grab and diaphragm seal are cross to be vertically connected, described protective sleeve can be interlocked by grab with described remaining needle main body.
2. straight type single-hand remaining needle according to claim 1, it is characterized in that, described remaining needle main body comprises infusion tube, bucket-shaped indwelling needle handle and positive pressure connector, infusion tube and indwelling needle handle connector place are provided with a check valve, be threaded connection between indwelling needle handle and positive pressure connector, the end surface of described positive pressure connector offers groove.
3. straight type single-hand remaining needle according to claim 2, is characterized in that, described remaining needle main body is also equipped with a needle tip protection sleeve.
4. straight type single-hand remaining needle according to claim 2; it is characterized in that; described protective sleeve is the cylindrical container that tail end is closed; the positive pressure connector of its end is connected to remaining needle main body; described protective sleeve front end is provided with diaphragm seal, and described diaphragm seal central authorities are provided with a through hole only holding a root puncture pin and pass through.
5. straight type single-hand remaining needle according to claim 1, is characterized in that, described puncture needle surface is provided with a needle point groove, and this puncture needle is hollow needle tubing from needle point to the position of groove.
6. straight type single-hand remaining needle according to claim 1, is characterized in that, the distance between described recess notch and diaphragm seal is greater than the length of tip to needle point groove of described needle tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082021.8A CN103110997B (en) | 2013-03-14 | 2013-03-14 | Straight type single-hand remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082021.8A CN103110997B (en) | 2013-03-14 | 2013-03-14 | Straight type single-hand remaining needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103110997A CN103110997A (en) | 2013-05-22 |
| CN103110997B true CN103110997B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310082021.8A Active CN103110997B (en) | 2013-03-14 | 2013-03-14 | Straight type single-hand remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103110997B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6347888B1 (en) * | 2017-12-19 | 2018-06-27 | メディキット株式会社 | Protector and medical needle assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6972002B2 (en) * | 2000-04-28 | 2005-12-06 | Specialized Health Products, Inc. | Passively activated safety shield for a catheter insertion needle |
| US7226434B2 (en) * | 2003-10-31 | 2007-06-05 | Tyco Healthcare Group Lp | Safety shield |
| CN2907727Y (en) * | 2006-06-06 | 2007-06-06 | 威海洁瑞医用制品有限公司 | Single wing safety vein retaining needle |
| CN102836479B (en) * | 2012-09-13 | 2014-04-09 | 苏州林华医疗器械有限公司 | Security-type venous indwelling needle |
| CN203107851U (en) * | 2013-03-14 | 2013-08-07 | 苏州大学 | Straight one-handed remaining needle |
-
2013
- 2013-03-14 CN CN201310082021.8A patent/CN103110997B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103110997A (en) | 2013-05-22 |
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Effective date of registration: 20191204 Address after: Room 1706, block B, building 2, Lifeng business center, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou Xinmu Intellectual Property Service Co.,Ltd. Address before: 215123 No. 199 benevolence Road, Suzhou Industrial Park, Jiangsu, China Patentee before: Soochow University |
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Effective date of registration: 20221129 Address after: 276000 Middle section of Yanbin Road, Biomedical Industrial Park, Feixian Economic Development Zone, Linyi City, Shandong Province Patentee after: Kangquan Medical Products (Shandong) Co.,Ltd. Address before: Room 1706, block B, building 2, Lifeng business center, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: Suzhou Xinmu Intellectual Property Service Co.,Ltd. |
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Effective date of registration: 20221227 Address after: 276000 room 205, building 3, science and technology residence, south of shuangyueyuan Road West Section, high tech Industrial Development Zone, Linyi City, Shandong Province Patentee after: Linyi high tech talent education development group Co.,Ltd. Address before: 276000 Middle section of Yanbin Road, Biomedical Industrial Park, Feixian Economic Development Zone, Linyi City, Shandong Province Patentee before: Kangquan Medical Products (Shandong) Co.,Ltd. |
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Effective date of registration: 20230609 Address after: 2188 Longcheng Avenue, Xinzha street, Zhonglou District, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU KENNO MEDICAL INSTRUMENTS CO.,LTD. Address before: 276000 room 205, building 3, science and technology residence, south of shuangyueyuan Road West Section, high tech Industrial Development Zone, Linyi City, Shandong Province Patentee before: Linyi high tech talent education development group Co.,Ltd. |