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CN108744146B - Needle-stick-preventing remaining needle - Google Patents

Needle-stick-preventing remaining needle Download PDF

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Publication number
CN108744146B
CN108744146B CN201810723598.5A CN201810723598A CN108744146B CN 108744146 B CN108744146 B CN 108744146B CN 201810723598 A CN201810723598 A CN 201810723598A CN 108744146 B CN108744146 B CN 108744146B
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China
Prior art keywords
needle
seat
protection
needle tube
cantilever
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CN201810723598.5A
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Chinese (zh)
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CN108744146A (en
Inventor
陈树勇
王书华
张庆军
秦宏平
吴传秀
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Jiangsu Suyun Medical Materials Co Ltd
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Jiangsu Suyun Medical Materials Co Ltd
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Priority to CN201810723598.5A priority Critical patent/CN108744146B/en
Publication of CN108744146A publication Critical patent/CN108744146A/en
Application granted granted Critical
Publication of CN108744146B publication Critical patent/CN108744146B/en
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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
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The utility model provides a prevent acupuncture needle of keeping somewhere, including needle core and flexible catheter, the needle core includes needle tubing and needle file, the protection machanism of automatic activation locking needle tubing head when being equipped with on the needle tubing, protection machanism passes through the bulge on the needle tubing and locks with the needle tubing, protection machanism includes the protection casing of cover on the guide holder and establishes the protection seat at the protection casing rear, protection seat front end is equipped with the recess, protection seat rear end is equipped with the needle file pilot hole, be equipped with the through-hole on the protection casing relative with the needle file pilot hole, be equipped with the inner cantilever on the protection casing, the inner cantilever front end is equipped with the blocking part with needle tubing head locking in the protection casing, be equipped with the outer cantilever of card on the pipe seat outer wall on the protection seat. According to the invention, the protection seat with the outer cantilever and the protection cover with the inner cantilever are arranged, the protection seat and the catheter seat are locked through the outer cantilever, and the locking of the needle tube head is realized through the blocking part on the inner cantilever; the head of the needle tube is automatically activated and locked when the needle core is pulled out, and the protection effect is good.

Description

Needle-stick-preventing remaining needle
Technical Field
The invention relates to a medical apparatus, in particular to an anti-needling indwelling needle.
Background
The intravenous needle can reduce pain and fear of needle injection caused by repeated intravenous puncture of children patients, is convenient for clinical medication, emergency medication for emergency and critical patients, reduces the workload of nurses, reduces the pain of children patients and the like, and is widely applied clinically. The traditional remaining needle is contaminated by blood of a patient in the process of using the back needle, medical staff is easy to be pricked by the needle when the needle is pulled away or cleaned and discarded, diseases are easy to be infected, and certain potential safety hazards exist. In clinical use, after the steel needle of the vein indwelling needle is successfully punctured and the soft cannula is smoothly guided into the vein indwelling of a patient, medical staff needs to withdraw the steel needle to the rear part of the indwelling needle until the steel needle is completely separated from the cannula holder, and the used steel needle is discarded in a sharp article disposal box after the steel needle is used.
Many keep somewhere the needle in prior art for solving the security problem that it exists, disclose multiple safety, prevent that the acupuncture from keeping somewhere the needle, these keep somewhere the needle and generally be equipped with the protection piece, block the syringe needle through the elasticity protection piece in the syringe needle withdrawal process, avoid the syringe needle to stab medical personnel, but these protection pieces are too complicated because of elasticity is not enough, the cost of manufacture is high.
The Chinese patent discloses a disposable needle-punching-preventing retention needle with application number 201520756765.8, which is characterized in that a spring piece is arranged in an outer sleeve, when the needle tube is arranged in the spring piece, the bulge on the spring piece falls into the concave part of the catheter seat, so that the spring piece and the catheter seat are fixed and locked. When the venipuncture is completed, the needle tube with the needle point is required to be pulled out, and when the needle tube with the needle point leaves the baffle plate on the spring piece, the baffle plate loses support, so that the U-shaped edge-covering elastic arm is started to have potential elastic force, the baffle plate is closed towards the center direction of the needle tube, and the baffle plate blocks the needle point, so that the puncture preventing effect is achieved. However, this structured indwelling needle has the following drawbacks: firstly, a contact point is extruded by a spring piece double arm on the surface of a steel needle, so that when the steel needle is pulled, the surface resistance is high, and a pull mark or burr is caused on the surface of the steel needle; second, the inside bump screens that use of overcoat for fixed and locking the spring leaf, the bump is in the inside design of overcoat and can have certain degree of difficulty to injection mold and shaping process, and the shaping article is difficult to the drawing of patterns, and if each bump screens is inaccurate because of the defect of shaping challenge, need use great external force just can pull out spring leaf and overcoat in the pipe seat together, and it is inconvenient to use, and the position of overcoat and spring leaf is fixed motionless with the bump screens, and after the spring arm starts, spring leaf and overcoat just separate with the pipe seat together, if the design is inaccurate, probably put the overcoat and stay in the pipe seat.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the anti-needling indwelling needle which is reasonable in design, convenient to use and simple in structure.
The invention aims to solve the technical problems by the following technical proposal, the invention is an anti-needling indwelling needle, which comprises a needle core and a flexible catheter, wherein the flexible catheter consists of a catheter pipeline, a catheter seat and a positive pressure joint, the catheter pipeline is arranged on the catheter seat, the catheter seat is connected with the positive pressure joint through an extension pipe, the needle core comprises a needle tube and a needle seat, the needle tube penetrates out of the catheter pipeline through the catheter seat,
the needle tube is provided with a protection mechanism which automatically activates and locks the head of the needle tube when the needle core is pulled out, the protection mechanism is locked with the needle tube through a bulge part on the needle tube, and the protection mechanism is driven to retract together when the needle tube is retracted;
the protection mechanism comprises a protection cover covered on the guide seat and a protection seat arranged at the rear of the protection cover, wherein the protection seat is provided with an outer cantilever arm which extends forwards and is clamped on the outer wall of the guide seat, the front end of the protection seat is provided with a groove matched with the top of the protection cover, the rear end of the protection seat is provided with a needle seat assembly hole for a needle tube to pass through and matched with a needle seat, the needle seat assembly hole is communicated with the groove, the protection cover opposite to the needle seat assembly hole is provided with a through hole for the needle tube to pass through and matched with a needle tube bulge, the protection cover is internally provided with an inner cantilever matched with the side wall of the needle tube, the front end of the inner cantilever is provided with a blocking part for locking the head of the needle tube in the protection cover, the rear end of the inner cantilever is fixedly connected with the protection cover, and the distance from the front end of the inner cantilever to the through hole is larger than the distance from the needle tube bulge to the front end of the needle tube;
in the assembled state, the needle tube passes through the needle seat assembly hole on the protective seat and the through hole on the protective cover, and extends into the catheter pipeline from the catheter seat through the inner cantilever, the outer cantilever on the protective seat is opened on the outer side wall of the catheter seat so as to sleeve the protective seat and the protective cover at the rear end of the catheter seat, and the blocking part on the inner cantilever of the protective cover is pressed on the wall of the needle tube;
in the process of withdrawing the needle tube, when the bulge part of the needle tube withdraws to the through hole of the protective cover, the blocking part on the inner cantilever moves to the front of the head part of the needle tube, so that the head part of the needle tube is automatically locked in the protective cover to prevent needling.
The technical problem to be solved by the invention can be further solved by the following technical scheme that the locking mechanism of the protection seat is arranged on the outer side wall of the catheter seat, and the unlocking mechanism of the locking mechanism is arranged between the protection cover and the protection seat.
The technical problem to be solved by the invention can be also achieved by the following technical scheme that the locking mechanism comprises a clamping groove arranged on the catheter seat and a clamping block matched with the clamping groove, and the clamping block is arranged on the outer cantilever;
the unlocking mechanism comprises an inner bulge which is matched with the outline of the outer wall of the protective cover to open the outer cantilever unlocking locking mechanism, and the inner bulge is arranged on the outer cantilever behind the clamping block; the outer wall of the protective cover close to the front end is provided with a convex block matched with the inner convex block.
The technical problem to be solved by the invention can be also realized by the following technical scheme that one side of the needle tube is provided with a blood return tube body arranged along the axis of the needle tube, two ends of the blood return tube body are communicated with the needle tube, the blood return tube body is in a capillary shape, and a bushing for locking the blood return tube body is arranged at a through hole of the protective cover.
The technical problem to be solved by the invention can also be achieved by the following technical scheme that the bushing is provided with a pipe sleeve coaxially arranged with the through hole of the protective cover, the pipe sleeve is tightly matched with the hole wall of the through hole, the front end of the pipe sleeve is provided with a plurality of inclined support strips which are propped against the blood return tube body, and the inclined support strips are distributed along the circumferential direction of the needle tube.
The technical problem to be solved by the invention can be also realized by the following technical scheme that the bulge part of the needle tube is an bulge part formed by crimping and provided with concave two sides.
The technical problem to be solved by the invention can be also realized by the following technical scheme that two inner cantilevers are arranged, the two inner cantilevers are symmetrically arranged at two sides of the needle tube, and the outer cantilever on the protective seat is correspondingly arranged with the inner cantilever on the protective cover.
The technical problem to be solved by the invention can also be achieved by the following technical scheme that the outer wall of the protection seat is provided with a finger pressing block.
Compared with the prior art, the needle tube head locking device has the advantages that the protection seat with the outer cantilever and the protection cover with the inner cantilever are arranged, during assembly, the outer cantilever is clamped on the protection seat, the protection seat and the catheter seat are locked through the outer cantilever, and the locking of the needle tube head is realized through the blocking part on the inner cantilever; through establishing the bush, locking protection casing and needle tubing, through establishing locking mechanical system and unlocking mechanical system, realize the automatic locking and the unblock of protection seat and catheter seat to automatic activation locking needle tubing head when realizing extracting the nook closing member, simple in design, reasonable, convenient to use, the protection effect is good.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic view of the structure of the present invention after the needle cannula is withdrawn;
FIG. 4 is an enlarged view of a portion of FIG. 2;
FIG. 5 is a schematic structural view of a shield;
FIG. 6 is a schematic structural view of a guard base;
FIG. 7 is a schematic view of the structure of a needle cannula;
fig. 8 is a schematic structural view of the bushing.
Detailed Description
Specific embodiments of the invention will be further described below with reference to the accompanying drawings, in order to facilitate a further understanding of the invention by those skilled in the art, without limiting the scope of the claims thereto.
Referring to fig. 1-8, an anti-needling indwelling needle comprises a needle core and a flexible catheter, wherein the flexible catheter consists of a catheter pipeline, a catheter seat and a positive pressure joint, the catheter seat 1 is a three-way catheter seat, the catheter pipeline is arranged on the catheter seat, the catheter seat 1 is connected with the positive pressure joint through an extension pipe, the needle core comprises a needle tube 3 and a needle seat, the needle tube penetrates out of the catheter pipeline through the catheter seat,
the needle tube 3 is provided with a protection mechanism which automatically activates and locks the head of the needle tube 3 when the needle core is pulled out, the protection mechanism is locked with the needle tube 3 through a bulge part 6 on the tube body of the needle tube 3, and the protection mechanism is driven to retract together when the needle tube 3 is retracted;
the protection mechanism comprises a protection cover 8 covered on the guide seat 1 and a protection seat 2 arranged behind the protection cover 8, an outer cantilever 4 clamped on the outer wall of the guide seat 1 is arranged on the protection seat 2, a groove 5 matched with the top of the protection cover is arranged at the front end of the protection seat 2, the groove 5 has a certain guiding function so as to assist the protection cover 8 to move along the axis of a needle tube, a needle seat assembly hole 7 for the needle tube 3 to pass through and matched with the needle seat is arranged at the rear end of the protection seat 2, the needle seat assembly hole 7 is communicated with the groove 5, a through hole 12 for the needle tube 3 to pass through and matched with the bulge 6 of the needle tube 3 is arranged on the protection cover 8 opposite to the needle seat assembly hole 7, an inner cantilever 10 matched with the side wall of the needle tube 3 is arranged in the protection cover 8, a blocking part for locking the head of the needle tube 3 in the protection cover 8 is arranged at the front end of the inner cantilever 10, the rear end of the inner cantilever 10 is fixedly connected with the protection cover 8, and the distance from the front end of the inner cantilever 10 to the through hole 12 is larger than the distance from the bulge 6 to the front end of the needle tube 3;
in the assembled state, the needle tube 3 passes through the needle seat assembly hole 7 on the protective seat 2 and the through hole 12 on the protective cover 8, and extends into a catheter pipeline from the catheter seat 1 through the inner cantilever 10, the outer cantilever 4 on the protective seat 2 is opened on the outer side wall of the catheter seat 1, so that the protective seat and the protective cover are sleeved at the rear end of the catheter seat, and the blocking part on the cantilever 10 in the protective cover 8 is pressed on the wall of the needle tube 3;
when the bulge part 6 of the needle tube 3 is retreated to the through hole 12 of the protective cover 8 in the needle tube retreating process, the blocking part on the inner cantilever 10 moves to the front of the head part of the needle tube 3, so that the head part of the needle tube 3 is automatically locked in the protective cover 8 to prevent needling;
the outer cantilever 4 extends forwards from the rear of the protective cover 8 to cover the protective cover and is clamped on the outer wall of the catheter seat 1, so that the protective seat 2 and the protective cover 8 are stably arranged on the catheter seat, the protective seat 2 is arranged on the catheter seat, the needle tube is limited by the protective cover in the retreating process, the protective cover 8 locks the needle tube, in addition, the shape inside the groove 5 is matched with the external shape of the protective cover, the depth of the groove 5 is less than or equal to 1/2 of the depth of the protective cover, and the protective cover can more favorably spread the outer cantilever 4 on the protective seat 2.
The outer side wall of the catheter seat 1 is provided with a locking mechanism of the protection seat 2, and an unlocking mechanism of the locking mechanism is arranged between the protection cover 8 and the protection seat 2.
The locking mechanism comprises a clamping groove 11 arranged on the catheter seat 1 and a clamping block matched with the clamping groove 11, and the clamping block is arranged on the outer cantilever 4;
the unlocking mechanism comprises an inner bulge 16 which is matched with the outline of the outer wall of the protective cover 8 to open the outer cantilever unlocking locking mechanism, the inner bulge 16 is arranged on the outer cantilever 4 behind the clamping block, a convex block 17 matched with the inner bulge is arranged on the outer wall of the protective cover close to the front end, the inner bulge 16 is favorable for the protective cover to smoothly open the outer cantilever 4, the convex block 17 can prevent the outer cantilever 4 from being retracted to the rear part of the protective cover again due to the appearance of the protective cover after being opened, and therefore the outer cantilever 4 is prevented from being locked on a catheter seat again, and smooth opening of the outer cantilever 4 is ensured.
The needle tube 3 is provided with a blood return tube body 15 arranged along the axis of the needle tube 3 on one side, two ends of the blood return tube body 15 are communicated with the needle tube 3, the blood return tube body 15 is in a capillary shape, a bushing 9 for locking the blood return tube body 15 is arranged at a through hole 12 of the protective cover 8, the blood return tube body 15 is arranged behind a rising part 6 of the needle tube 3, so that the matching of a locking mechanism and the tube body of the needle tube 3 cannot be influenced, a concave groove for placing the blood return tube body 15 is arranged on the side wall of the needle tube opposite to the blood return tube body 15, and the blood return tube body 15 is arranged in the concave groove and is connected with the wall of the concave groove, so that the blood return tube body 15 is connected with the tube body of the needle tube 3 into a whole, and the blood return tube body 15 is hidden in the needle tube, and the use of the needle tube cannot be influenced.
The bushing 9 is provided with a pipe sleeve 18 coaxially arranged with the protective cover 8, the pipe sleeve 18 is tightly matched with the hole wall of the through hole 12, the pipe sleeve 18 is provided with small holes coaxially arranged with the through hole 12 and used for a needle tube to pass through, the front end of the pipe sleeve 18 is provided with a plurality of inclined support strips 19 propped against the blood return tube body 15, the inclined support strips 19 are fixedly connected with the pipe sleeve 18, and the inclined support strips 19 are distributed along the circumferential direction of the needle tube.
The bulge part 6 of the needle tube 3 is an expansion part with concave two sides formed by crimping, and the molding process is simple.
The two inner cantilevers 10 are symmetrically arranged on two sides of the needle tube 3, the outer cantilever 4 on the protective seat 2 and the inner cantilever 10 on the protective cover 8 are correspondingly arranged, and the inner cantilever 10 locks the head of the needle tube in the protective cover in a surrounding manner to prevent needling, so that the protective effect is better.
The protecting seat 2 is provided with a finger pressing block 14, the finger pressing block 14 is turned outwards, and an additional finger pressing surface is provided to prevent the finger from contacting the catheter seat, so that the risk of infection to a patient is reduced.

Claims (10)

1. The utility model provides a prevent acupuncture needle of keeping somewhere, includes nook closing member and flexible pipe, the flexible pipe constitute by pipe pipeline, catheter holder and malleation joint, the pipe pipeline is adorned on the catheter holder, is connected through the extension pipe between catheter holder and the malleation joint, the nook closing member include needle tubing and needle file, the needle tubing is worn out from the pipe pipeline through the catheter holder, its characterized in that:
the needle tube is provided with a protection mechanism which automatically activates and locks the head of the needle tube when the needle core is pulled out, the protection mechanism is locked with the needle tube through a bulge part on the needle tube, and the protection mechanism is driven to retract together when the needle tube is retracted;
the protection mechanism comprises a protection cover covered on the catheter seat and a protection seat arranged at the rear of the protection cover, wherein the protection seat is provided with an outer cantilever arm which extends forwards and is clamped on the outer wall of the catheter seat, the front end of the protection seat is provided with a groove matched with the top of the protection cover, the rear end of the protection seat is provided with a needle seat assembly hole for a needle tube to pass through and matched with a needle seat, the needle seat assembly hole is communicated with the groove, the protection cover opposite to the needle seat assembly hole is provided with a through hole for the needle tube to pass through and matched with a needle tube bulge, the protection cover is internally provided with an inner cantilever matched with the side wall of the needle tube, the front end of the inner cantilever is provided with a blocking part for locking the head of the needle tube in the protection cover, the rear end of the inner cantilever is fixedly connected with the protection cover, and the distance from the front end of the inner cantilever to the through hole is larger than the distance from the needle tube bulge to the front end of the needle tube;
in the assembled state, the needle tube passes through the needle seat assembly hole on the protective seat and the through hole on the protective cover, and extends into the catheter pipeline from the catheter seat through the inner cantilever, and the outer cantilever on the protective seat is opened on the outer side wall of the catheter seat, so that the protective seat and the protective cover are sleeved at the rear end of the catheter seat, and the blocking part on the inner cantilever of the protective cover is pressed on the wall of the needle tube;
in the process of withdrawing the needle tube, when the bulge part of the needle tube withdraws to the through hole of the protective cover, the blocking part on the inner cantilever moves to the front of the head part of the needle tube, so that the head part of the needle tube is automatically locked in the protective cover to prevent needling.
2. The needle stick resistant indwelling needle according to claim 1, wherein: the outer side wall of the catheter seat is provided with a locking mechanism of the protection seat, and an unlocking mechanism of the locking mechanism is arranged between the protection cover and the protection seat.
3. The needle stick resistant indwelling needle according to claim 2, wherein: the locking mechanism comprises a clamping groove arranged on the catheter seat and a clamping block matched with the clamping groove, and the clamping block is arranged on the outer cantilever;
the unlocking mechanism comprises an inner bulge which is matched with the outline of the outer wall of the protective cover to open the outer cantilever unlocking and locking mechanism, and the inner bulge is arranged on the outer cantilever behind the clamping block.
4. A needle stick resistant indwelling needle according to claim 3, in which: the outer wall of the protective cover close to the front end is provided with a convex block matched with the inner convex block.
5. The needle stick resistant indwelling needle according to claim 1, wherein: the blood return tube is characterized in that one side of the needle tube is provided with a blood return tube body arranged along the axis of the needle tube, two ends of the blood return tube body are communicated with the needle tube, and the blood return tube body is in a capillary shape.
6. The needle stick resistant indwelling needle according to claim 5, wherein: a bushing for locking the blood vessel body is arranged at the through hole of the protective cover.
7. The needle stick resistant indwelling needle according to claim 6, wherein: the bushing is provided with a pipe sleeve coaxially arranged with the through hole of the protective cover, the pipe sleeve is tightly matched with the hole wall of the through hole, the front end of the pipe sleeve is provided with a plurality of inclined branch strips which are propped against the blood return tube body, and the inclined branch strips are distributed along the circumferential direction of the needle tube.
8. The needle stick resistant indwelling needle according to claim 1, wherein: the bulge of the needle tube is a bulge which is formed by compression joint and is concave at two sides.
9. The needle stick resistant indwelling needle according to claim 1, wherein: the two inner cantilevers are symmetrically arranged on two sides of the needle tube, and the outer cantilever on the protective seat is correspondingly arranged with the inner cantilever on the protective cover.
10. The needle stick resistant indwelling needle according to claim 1, wherein: the outer wall of the protection seat is provided with a finger pressing block.
CN201810723598.5A 2018-07-04 2018-07-04 Needle-stick-preventing remaining needle Active CN108744146B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810723598.5A CN108744146B (en) 2018-07-04 2018-07-04 Needle-stick-preventing remaining needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810723598.5A CN108744146B (en) 2018-07-04 2018-07-04 Needle-stick-preventing remaining needle

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CN108744146B true CN108744146B (en) 2023-09-19

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111387995B (en) * 2020-03-31 2020-10-16 江苏苏云医疗器材有限公司 Safety blood taking needle and using method thereof
CN111374680B (en) * 2020-03-31 2020-10-02 江苏苏云医疗器材有限公司 Blood taking needle head protection device

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Publication number Priority date Publication date Assignee Title
CN101352587A (en) * 2007-07-25 2009-01-28 钱良 Medical device for preventing puncture wound by needle
CN102049073A (en) * 2010-11-04 2011-05-11 陈永曦 Enclosed type blood pollution prevention detaining needle guide tube component
CN104394921A (en) * 2012-06-19 2015-03-04 波利麦迪克有限公司 Needle guard
CN105939752A (en) * 2013-12-05 2016-09-14 B.布劳恩梅尔松根股份公司 Safety needle assemblies and related methods
CN209253818U (en) * 2018-07-04 2019-08-16 江苏苏云医疗器材有限公司 A kind of anti-needle thorn remaining needle

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Publication number Priority date Publication date Assignee Title
SE537334C2 (en) * 2012-04-27 2015-04-07 Vigmed Ab Protective device for needle point and mounting device
WO2014162377A1 (en) * 2013-04-01 2014-10-09 テルモ株式会社 Catheter assembly
EP3238770A4 (en) * 2014-11-21 2019-02-20 Nipro Corporation NEEDLE NEEDLE ASSEMBLY

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101352587A (en) * 2007-07-25 2009-01-28 钱良 Medical device for preventing puncture wound by needle
CN102049073A (en) * 2010-11-04 2011-05-11 陈永曦 Enclosed type blood pollution prevention detaining needle guide tube component
CN104394921A (en) * 2012-06-19 2015-03-04 波利麦迪克有限公司 Needle guard
CN105939752A (en) * 2013-12-05 2016-09-14 B.布劳恩梅尔松根股份公司 Safety needle assemblies and related methods
CN209253818U (en) * 2018-07-04 2019-08-16 江苏苏云医疗器材有限公司 A kind of anti-needle thorn remaining needle

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