CN106390233B - Disposable automatic pop-up medical needle - Google Patents

Disposable automatic pop-up medical needle Download PDF

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Publication number
CN106390233B
CN106390233B CN201610783364.0A CN201610783364A CN106390233B CN 106390233 B CN106390233 B CN 106390233B CN 201610783364 A CN201610783364 A CN 201610783364A CN 106390233 B CN106390233 B CN 106390233B
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CN
China
Prior art keywords
tube
needle
safety tube
safety
shell
Prior art date
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Active
Application number
CN201610783364.0A
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Chinese (zh)
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CN106390233A (en
Inventor
文智彬
余婷
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.)
Chengdu Puth Medical Plastics Packaging Co ltd
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Chengdu Puth Medical Plastics Packaging Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201610783364.0A priority Critical patent/CN106390233B/en
Publication of CN106390233A publication Critical patent/CN106390233A/en
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Publication of CN106390233B publication Critical patent/CN106390233B/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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150572Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape

Abstract

The invention provides a disposable automatic pop-up medical needle, which comprises a shell, a needle tube, a needle seat tube, a safety tube and a spring, wherein a locking switch is arranged at the front end of the shell, an outer convex ring is arranged on the outer wall of the front end of the needle seat tube, a clamping groove matched with the locking switch for use is arranged on the outer wall of the front end of the safety tube, an inner convex ring is arranged on the inner wall of the rear end of the safety tube, a through hole is arranged on the outer wall of the rear end of the safety tube, a buckle is arranged in the through hole, the needle tube is fixed on the needle seat tube, the needle seat tube is fixed in the shell, the safety tube is positioned in the shell and sleeved on the needle seat tube, one end of the spring is propped against the shell, the other end of the spring is propped against the safety tube, and the outer diameter of the outer convex ring of the needle seat tube is larger than the inner diameter of the inner convex ring of the safety tube. After the needle tube is used and pulled out from a patient, the needle tube can protect the needle tip of the needle tube, prevent puncture medical staff or other staff from being injured, prevent clinical cross infection and prevent unexpected reuse.

Description

Disposable automatic pop-up medical needle
Technical Field
The invention relates to the field of medicine, in particular to a disposable automatic pop-up medical needle.
Background
The anti-needling and anti-reuse devices used for infusion needles, blood taking needles, blood transfusion needles and the like in the current market are mostly manual, and after the product is used, the anti-needling and anti-reuse device is used for protecting needlepoints, preventing medical staff or patients from being accidentally stabbed, and is operated by one hand or two hands, so that the defects of inconvenience in operation, increase in labor intensity of the medical staff, other problems and the like exist.
Disclosure of Invention
The invention aims at: aiming at the problems in the prior art, the disposable automatic pop-up medical needle is provided, and the problems that the operation is inconvenient and the labor intensity of medical staff is increased when the existing product is operated by one hand or two hands are solved.
The invention aims at realizing the following technical scheme:
the utility model provides a disposable automatic pop-up medical needle, its characterized in that, this medical needle includes shell, needle tubing, needle file pipe, safety tube and spring, the front end of shell is equipped with locking switch, be equipped with outer bulge loop on the outer wall of the front end of needle file pipe, be equipped with the draw-in groove that uses with locking switch cooperation on the outer wall of the front end of safety tube, be equipped with interior bulge loop on the inner wall of the rear end of safety tube, be equipped with the through-hole on the outer wall of safety tube rear end, be equipped with the buckle in this through-hole, the needle tubing is fixed on the needle file pipe, and this needle file pipe is fixed in the shell, the safety tube is located the shell, and overlaps on the needle file pipe, the spring cover is on the needle file pipe, and the one end of spring supports on the shell, the other end supports on the safety tube, the external diameter of the outer bulge loop of needle file pipe is greater than the internal diameter of the interior bulge loop of safety tube.
As a further technical scheme, the outer wall of the shell is provided with an anti-slip structure.
As a further technical scheme, the locking switch comprises a support arm, a clamping head, a bending part and a pressing part, wherein the clamping head is connected with one end of the bending part, the other end of the bending part is connected with the pressing part, the front end of the shell is provided with a through hole, one end of the support arm is fixed in the through hole, and one end of the bending part connected with the clamping head is connected with the other end of the support arm.
As a further technical scheme, the surface of the pressing part is provided with an anti-slip structure.
As a further technical scheme, the outer surface of the needle tube seat is provided with a prismatic surface, and the inner surface of the safety tube is matched with the prismatic surface.
Compared with the prior art, the invention has the following advantages:
1. when the needle tube punctures or extracts the artery and vein, the concave structure and the anti-skid structure (convex teeth) arranged on the shell can effectively increase friction and prevent fingers from sliding during use to influence puncture and extraction;
2. after clinical infusion/blood transfusion/blood sampling is finished, the needle tube is pulled out of a patient, the locking switch is pressed by fingers, the clamping head of the locking switch on the safety tube is opened, the safety tube is ejected under the action of the elasticity of the spring, when the safety tube reaches the top of the needle seat tube, the safety tube is stopped under the action of the outer convex ring on the needle seat tube and the inner convex ring on the safety tube, and the buckle on the safety tube and the locking switch on the shell are locked in a bidirectional manner, so that the safety tube cannot slide back and forth, thereby protecting the needle tip of the needle tube in the safety tube, preventing stabbing medical staff or other staff, preventing clinical cross infection and preventing unexpected repeated use.
Drawings
FIG. 1 is a schematic view of the structure of the present invention before use;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the present invention after use;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
FIG. 5 is a schematic structural view of a safety tube;
FIG. 6 is a schematic view of the safety tube from another perspective;
FIG. 7 is a schematic structural view of the housing;
fig. 8 is a schematic structural view of the needle hub tube.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Examples
The invention provides a disposable automatic-ejection medical needle which can be a needle suitable for clinical arteriovenous puncture liquid medicine infusion, blood sampling and blood transfusion. As shown in fig. 1 to 8, the medical needle comprises a housing 1, a needle tube 2, a needle seat tube 3, a safety tube 4 and a spring 5. The front end of the housing 1 is provided with a lock switch 11. An outer convex ring 31 is arranged on the outer wall of the front end of the needle seat tube 3. The outer wall of the front end of the safety tube 4 is provided with a clamping groove 41 matched with the locking switch 11, the inner wall of the rear end of the safety tube 4 is provided with an inner convex ring 42, the outer wall of the rear end of the safety tube 4 is provided with a through hole 43, and a buckle 44 is arranged in the through hole 43. The needle tube 2 is fixed on the needle seat tube 3, the needle seat tube 3 is fixed in the shell 1, the safety tube 3 is positioned in the shell 1 and sleeved on the needle seat tube 3, the spring 5 is sleeved on the needle seat tube 3, one end of the spring 5 is propped against the shell 1, the other end is propped against the safety tube 4, and the outer diameter of the outer convex ring 31 of the needle seat tube 3 is larger than the inner diameter of the inner convex ring 42 of the safety tube 4. Before use, the safety tube 4 is positioned in the shell 1, the locking switch 11 on the shell 1 is buckled in the clamping groove 41 of the safety tube 4, and the spring 5 is in a compressed state; when the safety tube locking device is used, the locking switch 11 is pressed down to release the safety tube 4, the safety tube 4 is ejected out along the needle tube seat 3 under the action of the spring 5, then the buckle of the safety tube 4 is jacked up by the outer convex ring 31 of the needle tube seat, the safety tube 4 continues to advance until the inner convex ring 42 of the safety tube 4 is stopped when the inner convex ring 42 of the safety tube 4 touches the outer convex ring 31 of the needle tube seat 3, at the moment, the buckle 44 on the safety tube 4 is reset, and then the outer convex ring 31 is limited between the buckle 44 and the inner convex ring 42, so that the safety tube 4 cannot advance and cannot retreat, meanwhile, the locking switch 11 is reset, and further bidirectional locking is performed to prevent the safety tube 4 from retreating.
For easy holding, an anti-slip structure 12 is provided on the outer wall of the housing 1. In this way, the healthcare worker can directly use the needle tube without the need for wings provided on conventional needle tubes. Further, the anti-slip structure is arranged on the concave surface, so that the anti-slip structure is more anti-slip.
The present embodiment provides a specific structure of a lock switch, and the lock switch 11 includes a support arm 111, a chuck 112, a bending portion 113, and a pressing portion 114. The chuck 112 is connected to one end of the bending portion 113, and the other end of the bending portion 113 is connected to the pressing portion 114. A through hole 13 is provided at the front end of the housing 1, one end of the arm 111 is fixed in the through hole 13, and one end of the curved portion 113 to which the chuck 112 is connected to the other end of the arm 111. Meanwhile, an anti-slip structure 115 is provided on the surface of the pressing portion 114.
In order to prevent the safety tube from rotating and causing trouble, the invention is provided with a prismatic surface 32 on the outer surface of the needle tube seat 3, and the inner surface of the safety tube 4 is matched with the prismatic surface 32. In this embodiment, two symmetrical facets 32 are provided on the needle tube holder 3.
When the invention is used, after a needle tube is pulled out from a patient after clinical infusion/transfusion/blood collection is finished, the locking switch 11 is pressed by fingers, the clamping head 112 of the locking switch 11 clamped on the safety tube 4 is opened, the safety tube 4 is ejected under the action of the elastic force of the spring 5, when the safety tube 4 reaches the top of the needle seat tube 3, the safety tube 4 is stopped under the action of the outer convex ring 31 on the needle seat tube 3 and the inner convex ring 42 on the safety tube 4, and the buckle 44 on the safety tube 4 and the locking switch 11 on the shell 1 are locked in a bidirectional manner, so that the safety tube 4 cannot slide back and forth, thereby protecting the needle tip of the needle tube in the safety tube, preventing stabbing medical staff or other staff, preventing clinical cross infection and preventing unexpected repeated use.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (4)

1. The disposable automatic pop-up medical needle is characterized by comprising a shell, a needle tube, a needle seat tube, a safety tube and a spring, wherein the front end of the shell is provided with a locking switch, the outer wall of the front end of the needle seat tube is provided with an outer convex ring, the outer wall of the front end of the safety tube is provided with a clamping groove matched with the locking switch, the inner wall of the rear end of the safety tube is provided with an inner convex ring, the outer wall of the rear end of the safety tube is provided with a through hole, a buckle is arranged in the through hole, the needle tube is fixed on the needle seat tube, the needle seat tube is fixed in the shell, the safety tube is positioned in the shell and sleeved on the needle seat tube, one end of the spring is propped against the shell, the other end of the spring is propped against the safety tube, and the outer diameter of the outer convex ring of the needle seat tube is larger than the inner diameter of the inner convex ring of the safety tube; before use, the safety tube is positioned in the shell, the locking switch on the shell is buckled in the clamping groove of the safety tube, and the spring is in a compressed state at the moment; when the safety tube locking device is used, the locking switch is pressed down to release the safety tube, the safety tube is ejected along the needle tube seat under the action of the spring, then the buckle of the safety tube is jacked up by the outer convex ring of the needle tube seat, the safety tube continues to advance until the inner convex ring of the safety tube touches the outer convex ring of the needle tube seat, at the moment, the buckle on the safety tube is reset, and then the outer convex ring is limited between the buckle and the inner convex ring, so that the safety tube cannot advance and cannot retreat, and meanwhile, the locking switch is reset, and further bidirectional locking is performed to prevent the safety tube from retreating;
the locking switch comprises a support arm, a clamping head, a bending part and a pressing part, wherein the clamping head is connected with one end of the bending part, the other end of the bending part is connected with the pressing part, a through hole is formed in the front end of the shell, one end of the support arm is fixed in the through hole, and one end of the bending part, connected with the clamping head, is connected with the other end of the support arm.
2. The disposable automatic pop-up medical needle of claim 1, wherein the outer wall of the housing is provided with an anti-slip structure.
3. The disposable automatic pop-up medical needle according to claim 1, wherein the surface of the pressing part is provided with an anti-slip structure.
4. The disposable automatic pop-up medical needle according to claim 1, wherein the outer surface of the needle tube seat is provided with a prism surface, and the inner surface of the safety tube is matched with the prism surface.
CN201610783364.0A 2016-08-30 2016-08-30 Disposable automatic pop-up medical needle Active CN106390233B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610783364.0A CN106390233B (en) 2016-08-30 2016-08-30 Disposable automatic pop-up medical needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610783364.0A CN106390233B (en) 2016-08-30 2016-08-30 Disposable automatic pop-up medical needle

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CN106390233A CN106390233A (en) 2017-02-15
CN106390233B true CN106390233B (en) 2023-05-05

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113080953A (en) * 2021-04-02 2021-07-09 江苏大学附属医院 Surface self-cleaning multifunctional blood taking needle

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JPH0315481A (en) * 1988-04-28 1991-01-23 C Kurii John Canule inserting device furnished with retreating needle for safety
CN101284154A (en) * 2008-05-08 2008-10-15 杨育和 Self-destroyed safety syringe
WO2009100644A1 (en) * 2008-02-04 2009-08-20 Dongsen Fang Automatic retracting safe injector
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CN101912664A (en) * 2010-05-21 2010-12-15 成都普什医药塑料包装有限公司 Disposable positive pressure joint
CN202497155U (en) * 2011-12-06 2012-10-24 张亚平 Improved pen-type safe blood taking needle
EP2644219A1 (en) * 2012-03-28 2013-10-02 Chiranat T. Injecta, a.s. Safety disposable needle or cannula
CN104665846A (en) * 2015-03-11 2015-06-03 张亚平 Novel safe venipuncture needle

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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0315481A (en) * 1988-04-28 1991-01-23 C Kurii John Canule inserting device furnished with retreating needle for safety
WO2009100644A1 (en) * 2008-02-04 2009-08-20 Dongsen Fang Automatic retracting safe injector
CN101284154A (en) * 2008-05-08 2008-10-15 杨育和 Self-destroyed safety syringe
DE202009013096U1 (en) * 2009-04-04 2010-08-19 Cherry, Li, Taizhou City disposable syringe
CN101912664A (en) * 2010-05-21 2010-12-15 成都普什医药塑料包装有限公司 Disposable positive pressure joint
CN202497155U (en) * 2011-12-06 2012-10-24 张亚平 Improved pen-type safe blood taking needle
EP2644219A1 (en) * 2012-03-28 2013-10-02 Chiranat T. Injecta, a.s. Safety disposable needle or cannula
CN104665846A (en) * 2015-03-11 2015-06-03 张亚平 Novel safe venipuncture needle

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Address after: Building 1 and Building 2, No. 6 Kexin Road, High tech Zone (West District), Chengdu City, Sichuan Province, 611730

Patentee after: Chengdu Puth MEDICAL Plastics Packaging Co.,Ltd.

Address before: No. 6, Kexin Road, West Park, Hi-tech Zone, Chengdu, Sichuan 610000

Patentee before: Chengdu Puth Medical Plastics Packaging Co.,Ltd.

CP03 Change of name, title or address