CN110860013B - Medical syringe - Google Patents

Medical syringe Download PDF

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Publication number
CN110860013B
CN110860013B CN201911176172.3A CN201911176172A CN110860013B CN 110860013 B CN110860013 B CN 110860013B CN 201911176172 A CN201911176172 A CN 201911176172A CN 110860013 B CN110860013 B CN 110860013B
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CN
China
Prior art keywords
injection
needle
rod
push
injection tube
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
Application number
CN201911176172.3A
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Chinese (zh)
Other versions
CN110860013A (en
Inventor
王艳
邢义林
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.)
Wang yan
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201911176172.3A priority Critical patent/CN110860013B/en
Publication of CN110860013A publication Critical patent/CN110860013A/en
Application granted granted Critical
Publication of CN110860013B publication Critical patent/CN110860013B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M2005/3206Needle or needle hub disconnecting devices forming part of or being attached to the hub or syringe body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M2005/5006Having means for destroying the syringe barrel, e.g. by cutting or piercing

Abstract

The invention provides a medical syringe. The injection device comprises an injection tube and an injection push rod arranged in the injection tube, wherein a rubber plug is arranged at the end part of the injection push rod, and an injection needle head is sleeved at the end part of the injection tube; be equipped with in the section of thick bamboo wall of injection tube and push away the needle chamber, it is equipped with push away needle portion to push away the needle intracavity, push away needle portion including the push away needle bar, be equipped with on the section of thick bamboo wall of injection tube and press hole and drive hole, press the hole to run through in push away needle chamber and injection tube urceolus wall, the drive hole runs through in push away needle chamber and injection tube inner tube wall, be equipped with the gasket in the drive hole, be equipped with on the push away needle bar and press the briquetting, the drive block passes the drive hole, be equipped with on the push away needle bar and support the feeler lever, conflict pole one end links to each other with the push away needle bar, the other end passes the outer section of. Need not medical personnel hand touch and touch syringe needle, can accomplish the dismantlement of syringe needle, protection medical personnel's effect is stronger.

Description

Medical syringe
Technical Field
The invention relates to the technical field of medical equipment, in particular to a medical injector.
Background
The medical injector generally comprises an injection tube and an injection push rod arranged in the injection tube, wherein the end part of the injection push rod is provided with a rubber plug, the periphery of the rubber plug is abutted against the inner wall of the injection tube, and the end part of the injection tube is provided with an injection needle head; by pushing and pulling the syringe, the injection liquid can be sucked into the syringe or ejected from the injection needle.
The medical injector belongs to a disposable medical apparatus, namely after one-time injection, an injection needle needs to be pulled out of an injection tube, and then the injection tube and the injection needle are respectively put into a medical recovery tube for recovery. However, in the above operation process, the medical care personnel is required to pinch and rotate the injection needle, and the injection needle is usually stained with the injected injection, and at this time, if the medical care personnel has an allergic condition to the injection, the medical care personnel can be injured.
Disclosure of Invention
In view of the above, the present invention is directed to a medical injector, which can pull out an injection needle from an injection tube without touching the injection needle by a medical worker, so as to protect the medical worker.
In order to solve the technical problems, the technical scheme of the invention is as follows: a medical injector comprises an injection tube and an injection push rod arranged in the injection tube, wherein a rubber plug is arranged at the end part of the injection push rod, the periphery of the rubber plug is abutted against the inner cylinder wall of the injection tube, and an injection needle is sleeved at the end part of the injection tube;
the syringe comprises a syringe body, a syringe needle, a push needle cavity, a push needle part, a sealing piece, a driving block and a sealing piece, wherein the syringe body is provided with a push needle cavity in the wall, the push needle part comprises a push needle rod, the wall of the syringe body is provided with a pressing hole and a driving hole, the pressing hole penetrates through the push needle cavity and the wall of the outer cylinder of the syringe body, the driving hole penetrates through the push needle cavity and the wall of the inner cylinder of the syringe body, the driving hole is internally provided with the sealing piece so as to seal the driving hole, the push needle rod is provided with the pressing block and the driving block, the pressing block penetrates through the pressing hole and protrudes out of the wall of the outer cylinder of the syringe;
the push needle rod can move up and down along the push needle cavity, a touch rod is arranged on the push needle rod, one end of the touch rod is connected with the push needle rod, and the other end of the touch rod penetrates through the outer cylinder wall of the injection cylinder and can touch the injection needle head;
the injection push rod can generate extrusion force towards the direction of the injection needle to the driving block, the push rod can push the contact rod to move towards the direction of the injection needle, and the contact rod pushes the injection needle to be separated from the injection tube.
Through the technical scheme, after the injector is used once, medical personnel can press the pressing block into the injection tube, the sealing sheet can be broken by the driving block on the push rod and the driving block can be positioned in the injection tube, then the medical personnel pushes the injection push rod towards the direction of the injection needle head, the end part of the injection push rod can be pressed against the driving block and enables the push rod and the contact rod to move towards the direction of the injection needle head, the contact rod can extrude the injection needle head, the injection needle head can be separated from the injection tube, the injection needle head can be detached without touching the injection needle head by hands of the medical personnel, and the effect of protecting the medical personnel is strong;
in addition, the sealing sheet is also punctured simultaneously, and this injection cylinder also can receive direct destruction, prevents the malicious recycle of secondary.
Preferably, the end of the pressing block close to the sealing sheet is provided with a tip.
Through above-mentioned technical scheme, set up most advanced on pressing the briquetting, the sealing piece is punctureed more easily to the most advanced that enables to press the briquetting.
Preferably, the needle pushing cavity can be used for the needle pushing rod to move along the radial direction of the injection cylinder along the radial direction cavity diameter of the injection cylinder.
Through above-mentioned technical scheme, when medical personnel pressed the pressing block, whole push pin pole can produce along the radial direction of injection cylinder and remove.
Preferably, a spring is arranged in the push needle cavity and can generate elastic force to the push needle rod in the direction away from the injection needle head.
Through above-mentioned technical scheme, spring force can apply on the push pin pole to when the push pin pole does not receive to syringe needle direction thrust effect, the spring enables push pin pole and conflict pole and is located the direction that deviates from the syringe needle, and then guarantees the stability of being connected between syringe needle and the injection tube.
Preferably, the spring is located at a position on one side of the needle pushing rod close to the injection needle, a sliding block is arranged on the cavity wall of the needle pushing cavity in a sliding mode, two ends of the spring are connected to the sliding block and the needle pushing rod respectively, and the sliding direction of the sliding block is consistent with the moving direction generated after the needle pushing rod is pressed.
Through above-mentioned technical scheme, when the push pin pole moved toward injection tube middle part position, the push pin pole can drive spring and slider and produce and remove, and the slider slides and connects on the chamber wall in push pin chamber, can not only promote the installation stability between push pin pole and the conflict pole two, can promote the mobility stability between the two in addition.
Preferably, the number of the needle pushing parts is two, and the two needle pushing parts are symmetrically distributed on the injection cylinder.
Through above-mentioned technical scheme, medical personnel's accessible is pressed simultaneously and is pushed the pressing block in the needle pushing portion, and then makes the drive block that corresponds in the needle pushing portion salient in the inner tube wall of injection tube, then promotes the injection push rod again, and the injection push rod can conflict with two drive blocks simultaneously, and two conflict poles can produce thrust to the syringe needle simultaneously, and the syringe needle can break away from with the injection tube production more easily.
Preferably, be equipped with annular mounting groove on the circumference wall of the pole of injection push rod, the rubber buffer cover is located in the mounting groove, the tip that the injection push rod is close to the syringe needle is equipped with the conflict board of stereoplasm, punctures gasket (11) and enters into back in injection tube (1) when drive block (13), conflict board (17) face can offset with drive block (13).
Through the technical scheme, firstly, the sealing property between the injection push rod and the inner cylinder wall of the injection cylinder can be ensured; secondly, because the quantity of pushing away the needle portion is two, need carry out conflict simultaneously to the drive block in two pushing away needle portions, adopt stereoplasm touch panel can carry out conflict simultaneously to two conflict poles, and two pushing away needle bars can take place synchronization action, and the syringe needle can deviate from the injection tube more smoothly.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment;
fig. 2 is an enlarged view of a portion a of fig. 1.
Reference numerals: 1. an injection tube; 2. an injection push rod; 3. a rubber plug; 4. an injection needle; 5. a needle pushing cavity; 6. a needle pushing part; 7. a needle pushing rod; 8. a touch bar; 9. pressing the hole; 10. a drive aperture; 11. sealing the sheet; 12. a pressing block; 13. a drive block; 14. a tip; 15. a spring; 16. mounting grooves; 17. a touch plate; 18. a slide block.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings 1-2 to make the technical solution of the present invention easier to understand and grasp.
The utility model provides an injection syringe for medical treatment, includes injection tube 1, injection push rod 2, is equipped with the injection chamber in injection tube 1, and the tip cover at injection tube 1 is equipped with syringe needle 4, is equipped with annular mounting groove 16 on injection push rod 2's the circumference pole wall, and the cover is equipped with rubber buffer 3 in mounting groove 16, and injection push rod 2 is close to the tip of syringe needle 4 and is equipped with the conflict board 17 of stereoplasm. Wherein, the periphery of the rubber plug 3 is contacted with the inner cylinder wall of the injection cylinder 1.
A needle pushing cavity 5 is arranged in the wall of the injection tube 1, and needle pushing parts 6 are arranged in the needle pushing cavity 5, in this embodiment, the number of the needle pushing parts 6 is two, and the two needle pushing parts 6 are symmetrically distributed on the injection tube 1.
For the needle pushing parts 6, each needle pushing part 6 comprises a needle pushing rod 7, the cylinder wall of the injection cylinder 1 is provided with a pressing hole 9 and a driving hole 10, the pressing hole 9 penetrates through the needle pushing cavity 5 and the outer cylinder wall of the injection cylinder 1, and the driving hole 10 penetrates through the needle pushing cavity 5 and the injection cavity of the injection cylinder 1.
A sealing sheet 11 is arranged in the driving hole 10 to seal the driving hole 10, and the material of the sealing sheet 11 can be rubber. The push rod 7 is provided with a push block 12 and a drive block 13. The needle pushing cavity 5 can move along the radial direction of the injection tube 1 by the needle pushing rod 7. The pressing block 12 passes through the pressing hole 9 and protrudes from the outer cylindrical wall of the syringe 1. The driving block 13 passes through the driving hole 10, and the pressing block 12 is provided with a tip 14 at the end close to the sealing sheet 11, so that the driving block 13 can pierce the sealing sheet 11 and extend out of the inner cylinder wall of the syringe 1 by pressing the pressing block 12.
The push needle rod 7 can move up and down along the push needle cavity 5, a touch rod 8 is connected on the push needle rod 7, one end of the touch rod 8 is connected with the push needle rod 7, and the other end of the touch rod passes through the outer cylinder wall of the injection tube 1 and can touch the injection needle 4.
A spring 15 is arranged in the needle pushing cavity 5, and the spring 15 can generate elastic force to the needle pushing rod 7 in the direction away from the injection needle 4. The spring 15 is positioned at one side of the push needle rod 7 close to the injection needle 4, a slide block 18 is arranged on the cavity wall of the push needle cavity 5 in a sliding mode, two ends of the spring 15 are respectively connected to the slide block 18 and the push needle rod 7, the sliding direction of the slide block 18 is consistent with the moving direction generated after the push needle rod 7 is pressed, and the sliding direction of the slide block 18 is perpendicular to the length direction of the injection tube 1.
The injection push rod 2 can generate extrusion force towards the direction of the injection needle head 4 to the pressing block 12, the push rod 7 can push the contact rod 8 to move towards the direction of the injection needle head 4, and the contact rod 8 pushes the injection needle head 4 to be separated from the injection tube 1.
In the specific implementation process:
under the normal use environment, the pressing block 12 of the push rod 7 passes through the pressing hole 9 and protrudes out of the outer cylinder wall of the injection cylinder 1, the driving block 13 is positioned in the driving hole 10, a gap is left between the tip 14 on the driving block 13 and the sealing sheet 11, the elastic force of the spring 15 is applied to the push rod 7, and the push rod 7 and the abutting rod 8 are positioned in the direction departing from the injection needle head 4; the medical personnel hold the outer cylinder wall of the injection tube 1 by hands and push the injection push rod 2, the rubber plug 3 of the injection push rod 2 can slide along the inner cylinder wall of the injection tube 1, and the injection in the injection tube 1 can be smoothly sprayed out from the injection needle head 4.
After this syringe used once, medical personnel's hand is pressed pressing block 12, move push pin rod 7 toward the inside of injection tube 1, push pin rod 7 can slide through spring 15 pulling slider 18, most advanced 14 on the driving block 13 can pierce sealing piece 11 and extend outstanding in injection tube 1, medical personnel inject injection push rod 2 again, the conflict board 17 of injection push rod 2 can produce the extrusion to driving block 13, push pin rod 7, pressing block 12, conflict pole 8 can move toward 4 directions of injection needle, spring 15 can receive the extrusion, the tip of conflict pole 8 can take place the conflict with injection needle 4, injection needle 4 alright follow 1 tip of injection tube and deviate from.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims (7)

1. The utility model provides a syringe for medical treatment, include injection tube (1), install in injection push rod (2) in injection tube (1), rubber buffer (3) are installed to the tip of injection push rod (2), rubber buffer (3) periphery with the inner tube wall of injection tube (1) is inconsistent, the tip cover of injection tube (1) is equipped with injection needle (4), characterized by:
a needle pushing cavity (5) is arranged in the cylinder wall of the injection cylinder (1), a needle pushing part (6) is arranged in the needle pushing cavity (5), the needle pushing part (6) comprises a needle pushing rod (7), the cylinder wall of the injection cylinder (1) is provided with a pressing hole (9) and a driving hole (10), the pressing hole (9) penetrates through the needle pushing cavity (5) and the outer cylinder wall of the injection cylinder (1), the driving hole (10) penetrates through the needle pushing cavity (5) and the inner cylinder wall of the injection cylinder (1), a sealing sheet (11) is arranged in the driving hole (10) so as to seal the driving hole (10), a pressing block (12) and a driving block (13) are arranged on the push needle rod (7), the pressing block (12) passes through the pressing hole (9) and protrudes out of the outer cylinder wall of the injection cylinder (1), the driving block (13) passes through the driving hole (10), the driving block (13) can puncture the sealing sheet (11) and extend out of the inner cylinder wall of the injection cylinder (1) by pressing the pressing block (12);
the push needle rod (7) can move up and down along the push needle cavity (5), a touch rod (8) is arranged on the push needle rod (7), one end of the touch rod (8) is connected with the push needle rod (7), and the other end of the touch rod penetrates through the outer cylinder wall of the injection cylinder (1) and can be abutted against the injection needle (4);
the injection push rod (2) can generate extrusion force towards the direction of the injection needle head (4) to the driving block (13), the push rod (7) can push the contact rod (8) to move towards the direction of the injection needle head (4), and the contact rod (8) pushes the injection needle head (4) to be separated from the injection tube (1).
2. The medical syringe according to claim 1, wherein: the end part of the pressing block (12) close to the sealing piece (11) is provided with a tip (14).
3. The medical syringe according to claim 1, wherein: the needle pushing cavity (5) can be used for the needle pushing rod (7) to move along the radial direction of the injection tube (1) along the radial direction cavity diameter of the injection tube (1).
4. A medical injector as set forth in claim 3, wherein: a spring (15) is arranged in the needle pushing cavity (5), and the spring (15) can generate elastic force to the needle pushing rod (7) in the direction departing from the injection needle head (4).
5. The medical syringe according to claim 4, wherein: the injection needle is characterized in that the spring (15) is located at one side position, close to the injection needle head (4), of the push needle rod (7), a sliding block (18) is arranged on the cavity wall of the push needle cavity (5) in a sliding mode, two ends of the spring (15) are connected to the sliding block (18) and the push needle rod (7) respectively, and the sliding direction of the sliding block (18) is consistent with the moving direction generated after the push needle rod (7) is pressed.
6. The medical syringe according to claim 1, wherein: the number of the needle pushing parts (6) is two, and the two needle pushing parts (6) are symmetrically distributed on the injection cylinder (1).
7. The medical syringe according to claim 6, wherein: an annular mounting groove (16) is formed in the circumferential rod wall of the injection push rod (2), the rubber plug (3) is sleeved in the mounting groove (16), and a hard touch plate (17) is arranged at the end part, close to the injection needle (4), of the injection push rod (2);
when the driving block (13) pierces the sealing sheet (11) and enters the injection cylinder (1), the surface of the contact plate (17) can be contacted with the driving block (13).
CN201911176172.3A 2019-11-26 2019-11-26 Medical syringe Expired - Fee Related CN110860013B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911176172.3A CN110860013B (en) 2019-11-26 2019-11-26 Medical syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911176172.3A CN110860013B (en) 2019-11-26 2019-11-26 Medical syringe

Publications (2)

Publication Number Publication Date
CN110860013A CN110860013A (en) 2020-03-06
CN110860013B true CN110860013B (en) 2020-08-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911176172.3A Expired - Fee Related CN110860013B (en) 2019-11-26 2019-11-26 Medical syringe

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111743549B (en) * 2020-07-03 2021-02-19 于美瑛 Hematology specialty ware of drawing blood
CN111956910A (en) * 2020-09-12 2020-11-20 金梅兰 Self-destruction medical intravenous injection syringe
CN111956908A (en) * 2020-09-12 2020-11-20 金梅兰 Support frame type medical intravenous injection syringe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10179737A (en) * 1996-12-25 1998-07-07 Toru Kobayashi Injector
CN101099875A (en) * 2007-07-24 2008-01-09 陈通平 Syringe with dismountable needle
CN103127589A (en) * 2013-03-26 2013-06-05 魏颖德 Safety self-destruction syringe
TW201700119A (en) * 2015-06-17 2017-01-01 Qing-Xiang Wei Safe syringe for detaching needle by pushing capable of detaching needle from front end of barrel after usage to protect the medical personnel from being stabbed by used needle
CN107438444A (en) * 2015-04-09 2017-12-05 康赛莫德公司 Fluid delivery device and connector
CN108175908A (en) * 2018-02-06 2018-06-19 徐鸿明 Syringe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10179737A (en) * 1996-12-25 1998-07-07 Toru Kobayashi Injector
CN101099875A (en) * 2007-07-24 2008-01-09 陈通平 Syringe with dismountable needle
CN103127589A (en) * 2013-03-26 2013-06-05 魏颖德 Safety self-destruction syringe
CN107438444A (en) * 2015-04-09 2017-12-05 康赛莫德公司 Fluid delivery device and connector
TW201700119A (en) * 2015-06-17 2017-01-01 Qing-Xiang Wei Safe syringe for detaching needle by pushing capable of detaching needle from front end of barrel after usage to protect the medical personnel from being stabbed by used needle
CN108175908A (en) * 2018-02-06 2018-06-19 徐鸿明 Syringe

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Inventor after: Wang Yan

Inventor after: Xing Yilin

Inventor before: Xing Yilin

TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20200716

Address after: Department of hospital infection management, Zaozhuang maternal and child health hospital, Dongshou, Huanghe Road, Xuecheng District, Zaozhuang City, Shandong Province

Applicant after: Wang Yan

Address before: 318020 No. 310, Shangqian village, Dongcheng Street, Taizhou City, Zhejiang Province

Applicant before: Xing Yilin

GR01 Patent grant
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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200807

Termination date: 20201126