WO2010127487A1 - Injecteur automatique sécurisé rétractable destiné à un médicament non liquide - Google Patents

Injecteur automatique sécurisé rétractable destiné à un médicament non liquide Download PDF

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Publication number
WO2010127487A1
WO2010127487A1 PCT/CN2009/071665 CN2009071665W WO2010127487A1 WO 2010127487 A1 WO2010127487 A1 WO 2010127487A1 CN 2009071665 W CN2009071665 W CN 2009071665W WO 2010127487 A1 WO2010127487 A1 WO 2010127487A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
rod
liquid medicament
retractable
safety
Prior art date
Application number
PCT/CN2009/071665
Other languages
English (en)
Chinese (zh)
Inventor
林李李
Original Assignee
明辰股份有限公司
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.)
Filing date
Publication date
Application filed by 明辰股份有限公司 filed Critical 明辰股份有限公司
Priority to PCT/CN2009/071665 priority Critical patent/WO2010127487A1/fr
Publication of WO2010127487A1 publication Critical patent/WO2010127487A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • A61M37/0069—Devices for implanting pellets, e.g. markers or solid medicaments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0631—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; 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
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user

Definitions

  • the utility model relates to the field of medical instruments, in particular to a safety needle for automatically retracting non-liquid medicaments. Background technique
  • the needle is used to inject or blood to the human body, to control or clear the bacteria in the body, and to screen and treat various diseases and symptoms. From the convenience of treatment, the efficiency of management, the correctness of medication, the accuracy of dose, the anti-blocking property of pseudo-drugs, the difference of products, etc., pre-filled needles have become medicines and needles. An important development trend of the industry.
  • the injectable pharmaceuticals are not limited to traditional liquid pharmaceuticals.
  • Non-liquid innovative pharmaceuticals such as solid and colloidal injections, are gradually increasing.
  • Non-liquid pharmaceuticals must be treated with special needles. Injection, but injection needles for non-liquid medicaments are rarely seen at present.
  • the main purpose of the safety needle for the automatic retractable non-liquid medicament provided by the utility model is to provide a non-liquid medicament medicine bottle which can be placed in a safety syringe which can be automatically retracted, and the non-liquid medicament in the medicine bottle
  • the rod in the retracting rod of the retractable push rod is pushed, and the needle tube of the needle seat is injected into the human body, and the retractable push rod is pressed against the top medicine bottle and pushed against the needle seat, and the buckle is driven by the tension of the spring.
  • the hook is slid at the end of the needle seat by a plurality of u-shaped slides, so that the needle can be automatically retracted.
  • Another object of the safety needle for automatically retracting non-liquid medicament provided by the present invention is to provide a non-liquid medicament bottle which can be placed in a safety syringe which can be automatically retracted, and when the injection is completed, the needle The seat, vial and retraction rod can be retracted in the syringe to prevent needle stick damage and contamination.
  • Another object of the present invention is to provide a safety needle for an automatic retractable non-liquid medicament, which is to provide a non-liquid medicament bottle which can be placed in a safety syringe which can be automatically retracted, and the retractable push rod
  • the inner retracting rod is retracted in the hollow rod, and the hollow rod encircling has a convex rib portion capable of being fitted into the concave rib portion in the barrel, thereby forming an integrally recovered safety needle.
  • the embodiment of the present invention provides a safety needle for an automatic retracting non-liquid medicament, and the technical solution is as follows:
  • An automatic retractable non-liquid medicament needle the needle device comprising at least: a syringe Needle holder, spring, pill bottle and can Reduced push rod
  • the syringe has a plurality of hooks for holding the needle seat, and guides the needle seat and the bottle body to retract into the syringe after the injection is completed;
  • a needle tube penetrating the needle hub is disposed at a center of the needle hub, and a center of the needle tube has a conveying lane, and the conveying lane supplies a guiding of the non-liquid medicament;
  • the spring is disposed between the needle holders, and the needle seat has a rebounding power
  • the medicine bottle is approximately T-shaped, and is filled with a non-liquid medicament at the center, a rubber plug is formed at one end and an annular convex rib portion is formed, and a concentric circular inclined surface is formed at the opening of the other end, as a rod of the retractable push rod Body guidance
  • the collapsible push rod comprises two mutually fitting rod bodies, wherein one rod body has a larger diameter than the other rod body, and a rod body is centrally located at one end of the rod body having a smaller diameter, and can be condensed into the same tube body when used.
  • the rod having a smaller diameter forms an annular concave rib at one end of the inner edge.
  • the needle hub forms a complex approximate u-shaped groove slide at the end.
  • the U-shaped groove slide is composed of a positioning groove, a ramp, a rotating slide and a through slide.
  • the diameter of the outer edge of the inner diameter of the retractable push rod is smaller than the diameter of the inner edge of the hollow rod.
  • the inner retracting rod is slidable at an inner edge of the hollow rod.
  • the barrel forms a concave rib on the inner edge.
  • the non-liquid medicament is in the form of a gel or a solid.
  • the concave rib portion of the smaller diameter rod is interlocked with the rib portion of the vial.
  • One side plane of the vial is a convex rib.
  • the rib portion is intermeshing with the front end of the rod having a smaller diameter.
  • the utility model has the beneficial effects that: the rod body in the inner shrinking rod of the retractable push rod pushes against the non-liquid medicament in the medicine bottle, and the non-liquid medicine is injected into the human body through the needle tube of the needle seat, when the injection is completed,
  • the needle holder, the vial and the inner retracting rod are automatically retracted in the syringe to form an integrated retractable safety needle to prevent the infected needle from being exposed to medical personnel, cleaning personnel, or any other third party after use. It causes needle damage and pollution, is easy to use, and also considers the health and safety of users, cleaning personnel and even anyone who may be accidentally touched.
  • FIG. 1 is a perspective exploded view of a safety needle for an automatic retractable non-liquid medicament provided by the present invention.
  • FIG. 2 is a schematic plan view of a needle of a safety needle for an automatic retractable non-liquid medicament provided by the present invention.
  • 3-1 is a schematic cross-sectional view of a vial receiving syringe of the safety needle of the self-retracting non-liquid medicament provided by the utility model.
  • Fig. 3-2 is a schematic cross-sectional view of the inner rod of the safety needle of the self-retracting non-liquid medicament provided by the utility model pushed against the non-liquid medicament.
  • Fig. 3-3 is a schematic view showing the medicine bottle and the collapsible push rod buckle of the safety needle of the automatic retractable non-liquid medicament provided by the utility model.
  • Figure 3-4 is a schematic view of the needle seat and the hook action of the safety needle of the self-retracting non-liquid medicament provided by the utility model.
  • Fig. 4 is a schematic view showing the disengagement of the retracting rod and the hollow rod of the collapsible push rod of the safety retracting needle of the self-retracting non-liquid medicament provided by the utility model.
  • Fig. 5 is a schematic view showing the needle holder, the medicine bottle and the retracting rod of the safety needle of the self-retracting non-liquid medicament provided by the utility model.
  • Fig. 6 is a schematic view showing the retracting completion of the safety needle of the self-retracting non-liquid medicament provided by the utility model.
  • Fig. 7 is a schematic view showing the embodiment of the medicine bottle and the collapsible push rod buckle of the safety needle of the automatic retractable non-liquid medicament provided by the utility model.
  • Syringe 11 hook 110 , ear handle 111 , inner cylinder 112 , inner cylinder concave rib 113 ;
  • Needle seat 13 blocking piece 130, conveying path 1300, apron groove 1301, positioning groove 131, ramp 132, rotating slide 133, through slide 134, needle tube 135, apron 136;
  • Medicine bottle 14 accommodating channel 140, rubber stopper 141, medicament 142, ampule rib 143;
  • Retractable push rod 15 inner shrink rod 150, rod body 1500, inner shrink rod rib portion 1501, inner shrink rod concave rib portion 1502, hollow rod 151, hollow rod rib portion 1510, stopper 1511, hollow rod concave Rib 1512;
  • FIG. 1 and FIG. 2 are schematic exploded perspective views of the safety needle of the automatic retractable non-liquid medicament provided by the utility model.
  • the medicine bottle of the non-liquid medicament can be placed in a safety syringe which can be automatically retracted, and the safety needle of the automatic retractable non-liquid medicament
  • the invention includes at least: a cover 10, a syringe 11, a spring 12, a needle holder 13, a vial 14, and a retractable push rod 15, and the needle holder 13 and the vial after the injection are guided by the annular spring 12. 14 retracts in the opposite direction of the injection, thereby forming a safety needle that is integrally recovered.
  • the cover 10 is a cylindrical cover with an open side, and the cover is at one end of the syringe 11 to prevent the needle tip from penetrating;
  • the syringe 11 is a hollow tube whose one end is narrower than the other end, in diameter
  • the narrower end portion forms a corresponding hook 110
  • the wider end portion forms a ring-shaped ear handle 111, the hook 110 of the syringe 11 is used for fixing the spring 12 and the needle seat 13, and the inner tube 112 can be stored.
  • the medicine bottle 14 and the retractable push rod 15 are stored in the inner tube 112 after the injection is completed;
  • the needle holder 13 has a needle tube 135 extending through the center of the needle holder 13
  • One end of the needle tube 135 is formed with a tip portion, and a conveying path 1300 is formed in the needle tube 135.
  • a plurality of positioning grooves 131, a ramp 132, a rotating slide 133 and a through slide 134 are provided at one end of the needle holder 13, a plurality of positioning grooves 131, a ramp 132, a rotating slide 133 and a through slide 134 are provided.
  • the slot 131, the ramp 132, the rotating slide 133 and the through slide 134 form an approximately U-shaped retracting slide, and the positioning slot 131 forms a buckle with the hook 110 of the syringe 11 to position the hook 110 in the positioning slot.
  • the vial 14 is a T-shaped bottle body, and a through-the-receiving channel 140 is formed in the center of the vial 14 to place the medicament 142. Further, at the larger diameter end of the vial 14, a rubber plug 141 having a center is a perforation.
  • the retractable push rod 15 is formed by fitting the hollow rod 151 and the inner retracting rod 150, and the retracting rod 150
  • the diameter of the outer circumference is equal to the diameter of the inner circle of the hollow rod 151, wherein the center of one end of the inner rod 150 is fixed at one end
  • the body 1500 is used for injecting the medicine 142 in the medicine bottle 14 through the conveying path 1300 of the needle holder 13 into the human body, and then the outer circumference of the hollow rod 151 forms an annular convex rib 1510 corresponding to the inner tube 112 of the syringe 11
  • the concave rib 113, the plurality of stoppers 1511 and the ear stem 111 are
  • the medicine bottle of the needle, the syringe and the needle holder are combined.
  • the medicine bottle 14 is a T-shaped tube body, and a rubber stopper 141 is set at one end, and a receiving passage 140 is formed at the center of the medicine bottle 14 for placing the medicine 142.
  • the medicament 142 may be in the form of a gel or a solid.
  • the vial 14 is received in the inner cylinder 112 of the syringe 11 and pushed forward to the top of the needle holder 13 to open the receiving passage 140.
  • the narrow end of the vial 14 is opened to form a funnel-shaped inclined surface Y, and the rod 1500 of the retracting rod 150 can be poured into the accommodating passage 140 through the inclined surface.
  • the pharmaceutical agent 142 is pushed toward one end, and when the medicament 142 is injected into the human body, the concave rib 1502 at one end of the inner edge of the inner shrinking rod 150 is engaged with the convex rib 143 at one end of the vial 14 to make the vial 14 and the retracting rod 150
  • the retracting rod 150 is prevented from slipping when retracting, and the retractable push rod 15 is pressed against the pharmaceutical bottle 14, and the needle holder 13 is pushed toward one end, so that the clasp 110 slides out of the positioning groove 131 through the ramp 132 and slides into the sliding state.
  • the stopper 1511 of the hollow rod 151 of the retractable push rod 15 and the ear stem 111 of the syringe 11 are reserved with an appropriate distance X, so that When the hollow rod 151 is disengaged from the inner retracting rod 150, there is a compression space.
  • the spring 12 reaches a fully tightened state, and then the hollow rod 151 is advanced toward the front end to force the end of the hollow rod 151 to be concave.
  • the rib 1512 is disengaged from the convex rib 1501 of the inner retracting rod 150.
  • FIG. 5 and FIG. 6 are schematic diagrams of the needle holder, the medicine bottle and the retracting and storing of the safety needle of the automatic retractable non-liquid medicament provided by the utility model, and the hollow rod 151 of the retractable push rod 15
  • the two rods are separated by the retracting rod 150, and the outer rib 1510 of the hollow rod 151 slides down into the concave rib 113 in the inner cylinder 112 of the barrel 11 to be fixed, and is stretched by the spring 12
  • the buckle 110 is slid away from the sliding chute 133 to the through slide 134 (not shown, see FIG. 1), and the needle holder 13, the vial 14 and the retracting rod 150 are pushed back to the vial 14 .
  • FIG. 7 it is a schematic diagram of an embodiment of a safety bottle of a safety retractable non-liquid medicament provided by the present invention and a collapsible push rod.
  • the side of the end of the vial 14 forms a convex rib. 143, the outer circumference diameter is equal to or slightly smaller than the outer circumference diameter of the inner retracting rod 150.
  • the utility model has the beneficial effects that: the rod body in the inner shrinking rod of the retractable push rod pushes against the non-liquid medicament in the medicine bottle, and the non-liquid medicine is injected into the human body through the needle tube of the needle seat, when the injection is completed,
  • the retractable push rod is pressed against the top bottle and pushed against the needle seat to realize the disengagement of the retracting rod of the retractable push rod, and at the same time, the buckle is driven by the spring to make the plurality of U-shaped slides at the end of the needle seat slip.
  • the needle holder, the medicine bottle and the inner shrinking rod are automatically retracted in the hollow rod, and the hollow rod ring has a convex rib portion that can be embedded in the concave rib in the barrel, thereby forming an integral recovery safety needle, Prevents the needle tip from being infected and exposed to medical personnel, cleaning personnel, or any other third party due to exposure. It is easy to use and also considers the use. Health care for the person, the cleaning staff and even anyone who may be accidentally exposed.

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

Abstract

La présente invention concerne un injecteur automatique sécurisé rétractable destiné à un médicament non liquide comprenant un cylindre d'aiguille (11), un support d'aiguille (13), un ressort (12), une cartouche (14) et un ensemble de tige rétractable (15). Une barre (1 500) se trouvant dans une tige interne rétractable (150) dudit ensemble de tige rétractable (15) pousse le médicament qui n'est pas liquide dans la cartouche (14), de sorte que le médicament soit injecté à l'intérieur d'un corps humain. Le support pour aiguille (13), la cartouche (14) et la tige interne rétractable (150) pourraient se rétracter à l'intérieur du cylindre d'aiguille (11) après injection.
PCT/CN2009/071665 2009-05-07 2009-05-07 Injecteur automatique sécurisé rétractable destiné à un médicament non liquide WO2010127487A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/071665 WO2010127487A1 (fr) 2009-05-07 2009-05-07 Injecteur automatique sécurisé rétractable destiné à un médicament non liquide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/071665 WO2010127487A1 (fr) 2009-05-07 2009-05-07 Injecteur automatique sécurisé rétractable destiné à un médicament non liquide

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WO2010127487A1 true WO2010127487A1 (fr) 2010-11-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116747141A (zh) * 2023-08-11 2023-09-15 四川大学华西医院 一种可调节钝面弯曲程度的钝针及其使用方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1308550A (zh) * 1998-07-08 2001-08-15 诺沃挪第克公司 给药装置和用于该给药装置的药筒组件
CN1635919A (zh) * 2001-03-15 2005-07-06 Mdc投资控股公司 用于注射预充注药筒中的流体的具有可缩回的针的医用装置
CN101152589A (zh) * 2006-09-28 2008-04-02 明辰股份有限公司 医疗药物安全注射装置及用于医疗药物注射的推杆组合件
CN101180090A (zh) * 2004-12-09 2008-05-14 韦斯特制药服务公司 自动注射和回缩注射器
CN101554499A (zh) * 2008-04-08 2009-10-14 明辰股份有限公司 一种预填式自动回缩的安全针具

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1308550A (zh) * 1998-07-08 2001-08-15 诺沃挪第克公司 给药装置和用于该给药装置的药筒组件
CN1635919A (zh) * 2001-03-15 2005-07-06 Mdc投资控股公司 用于注射预充注药筒中的流体的具有可缩回的针的医用装置
CN101180090A (zh) * 2004-12-09 2008-05-14 韦斯特制药服务公司 自动注射和回缩注射器
CN101152589A (zh) * 2006-09-28 2008-04-02 明辰股份有限公司 医疗药物安全注射装置及用于医疗药物注射的推杆组合件
CN101554499A (zh) * 2008-04-08 2009-10-14 明辰股份有限公司 一种预填式自动回缩的安全针具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116747141A (zh) * 2023-08-11 2023-09-15 四川大学华西医院 一种可调节钝面弯曲程度的钝针及其使用方法
CN116747141B (zh) * 2023-08-11 2024-01-16 四川大学华西医院 一种可调节钝面弯曲程度的钝针及其使用方法

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