WO2014010503A1 - Ensemble aiguille - Google Patents

Ensemble aiguille Download PDF

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Publication number
WO2014010503A1
WO2014010503A1 PCT/JP2013/068346 JP2013068346W WO2014010503A1 WO 2014010503 A1 WO2014010503 A1 WO 2014010503A1 JP 2013068346 W JP2013068346 W JP 2013068346W WO 2014010503 A1 WO2014010503 A1 WO 2014010503A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective cover
use state
cannula
engagement protrusion
tip
Prior art date
Application number
PCT/JP2013/068346
Other languages
English (en)
Japanese (ja)
Inventor
佳邦 内田
伸晃 稲毛
Original Assignee
ニプロ株式会社
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 ニプロ株式会社 filed Critical ニプロ株式会社
Publication of WO2014010503A1 publication Critical patent/WO2014010503A1/fr

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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
    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
    • A61M2005/3267—Biased sleeves where the needle is uncovered by insertion of the needle into a patient's body
    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3271—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
    • A61M5/3272—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position having projections following labyrinth paths

Definitions

  • the present invention relates to a needle assembly, and in particular, a needle assembly that can be put into a pre-use state in which a protective cover is advanced to surround the tip of the cannula and a use state in which the protective cover is retracted to expose the tip of the cannula.
  • a needle assembly that can be put into a pre-use state in which a protective cover is advanced to surround the tip of the cannula and a use state in which the protective cover is retracted to expose the tip of the cannula.
  • a hub that holds the cannula, a protective cover that moves forward and backward with respect to the hub and surrounds the tip of the cannula, a cylindrical part that is provided on the hub and accommodates the protective cover so that it can protrude and retract from the tip
  • a needle assembly that includes a biasing means that is elastically mounted between the hub and the protective cover and biases the protective cover forward
  • Patent Document 1 an engagement protrusion and a guide means for restricting the movement of the engagement protrusion are provided on the cylindrical portion or the protective cover, respectively.
  • the pre-use state in which the protective cover protrudes forward from the cylindrical part and surrounds the tip of the cannula the use state in which the tip of the cannula is exposed by retreating inside the cylindrical part, and again from the cylindrical part It protrudes forward and surrounds the tip of the cannula and is moved to a post-use state that is fixed so as not to retreat.
  • the needle assembly according to the invention of claim 1 includes a hub for holding the cannula, a protective cover that moves forward and backward with respect to the hub to surround the tip of the cannula, and is provided on the hub and has the protective cover at the tip.
  • a cylindrical part that can be retracted more and more, an urging means that is elastically mounted between the hub and the protective cover and urges the protective cover forward
  • An engagement protrusion provided on the other side
  • a guide means that is provided on one of the other and restricts the movement of the engagement protrusion
  • the guide means moves the engagement protrusion in the axial direction so that the protective cover is retracted without rotating,
  • the guide means moves the engagement protrusion diagonally so that the protective cover moves forward while rotating.
  • the engagement protrusion and the guide means do not rotate when the protective cover is retracted from the pre-use state to the use state, so that it is possible to easily puncture without generating rotational torque. Become.
  • the protective cover is rotated from the use state to the post-use state by the engagement protrusion and the guide means, the cannula can be prevented from being exposed again from the protective cover in the post-use state.
  • (A) is sectional drawing which shows the state before use of the needle
  • (A) is sectional drawing which shows the use condition of a needle
  • (A) is sectional drawing which shows the state between the use state of a needle
  • (A) is sectional drawing which shows the state after use of a needle
  • the needle assembly 1 includes a hub 3 that holds the cannula 2, a protective cover 4 that moves forward and backward with respect to the hub 3 to surround the tip of the cannula 2, and is provided on the hub 3 and has the protective cover 4 at the tip.
  • a cylindrical portion 5 that is housed in a more retractable manner, and a spring portion 6 that is elastically mounted between the hub 3 and the protective cover 4 and biases the protective cover 4 forward.
  • the needle assembly 1 is in a pre-use state in which the cannula 2 is surrounded by the advanced protective cover 4 shown in FIG. 1 and a use state in which the protective cover 4 shown in FIG. 4 can be changed from the use state shown in FIG. 4 to a post-use state in which the cannula 2 is surrounded by the protective cover 4 again through the state shown in FIG.
  • the hub 3 has a cylindrical shape, and a connecting portion 3a to which the syringe is connected is formed at a base portion, a holding portion 3b that holds the cannula 2 is formed at a distal end, and an outer periphery of the connecting portion 3a is formed. Is provided with a spring receiving portion 3c with which one end of the spring portion 6 is elastically contacted.
  • the cannula 2 protrudes forward from the tip of the cylindrical part 5 by the holding part 3b, and when the protective cover 4 is positioned in the pre-use state or the post-use state as shown in FIGS.
  • the tip of the cannula 2 is surrounded by the protective cover 4.
  • the spring receiving portion 3c is formed in a bottomed cylindrical shape, the rear end of the spring portion 6 is elastically contacted to the bottom portion, and the cylindrical portion 5 is fixed to the outer peripheral surface thereof.
  • the protective cover 4 and the spring portion 6 are integrally formed of an elastic resin, and are formed so that the hub 3 and the canula 2 pass through the center thereof.
  • the protective cover 4 includes a cover portion 11 provided so as to be able to protrude and retract from the hub 3, and a large-diameter engaging portion 12 provided behind the cover portion 11. A step is formed at the boundary. Further, two through holes 12 a are formed on the side surfaces of the engaging portion 12 at opposing positions, and an engaging protrusion 14 is provided inside the through hole 12 a via a deforming portion 13. The engaging protrusion 14 normally protrudes outward from the outer peripheral surface of the engaging portion 12.
  • the spring portion 6 is connected in series with the rear end of the engagement portion 12 and is elastically mounted between the spring receiving portion 3c of the hub 3 so as to urge the protective cover 4 forward. It has become.
  • the tubular portion 5 is composed of a tubular tubular body 5a and a cap body 5b provided at the tip thereof, and a guide for guiding the engaging protrusion 14 of the protective cover 4 on the inner peripheral surface thereof. Means 21 are formed.
  • An opening 5c having substantially the same diameter as that of the cover 11 of the protective cover 4 is formed at the tip of the cylindrical body 5a. In the state before use shown in FIG. Are in contact with the opening 5c to prevent the protective cover 4 from moving forward.
  • the guide means 21 is formed at two opposing positions in the same manner as the engagement protrusion 14, and an axial groove 21a formed in the axial direction of the cylindrical portion 5 and a cannula with respect to the axial groove 21a. 2 and an inclined surface 21b provided so as to face the base side.
  • the axial groove 21a is a groove formed from the tip of the cylindrical portion 5 toward the rear, and in the pre-use state shown in FIG. It is located at the tip of the axial groove 21a. Further, the axial groove 21a has substantially the same width as the engagement protrusion 14, so that the engagement protrusion 14 moves relative to the tubular portion 5 while the engagement protrusion 14 moves in the axial groove 21a. Therefore, the protective cover 4 is prevented from rotating.
  • the inclined surface 21b is formed at the rear end of the axial groove 21a.
  • the inclined surface 21b has a step shape formed by forming a groove deeper than the axial groove 21a behind the axial groove 21a. It has become. That is, the inclined surface 21b is formed so as to face rearward in the axial direction. Further, the inclined surface 21b is inclined obliquely forward from the rear end portion of the axial groove 21a as shown in FIG. 1B, and the front end portion of the inclined surface 21b is illustrated in FIG. In the state after use shown in FIG. 4, a through hole 22 for receiving the engaging protrusion 14 of the protective cover 4 is formed.
  • the connecting portion 3a of the hub 3 of the needle assembly 1 is attached to the tip of a syringe (not shown), and the needle assembly 1 is brought into a pre-use state shown in FIG.
  • the protective cover 4 is urged forward by the urging force of the spring portion 6, and the engaging portion 12 comes into contact with the opening portion 5 c of the cylindrical portion 5 from the rear, so that the protective cover 4 is more than the cylindrical portion 5. It protrudes forward and surrounds the cannula 2.
  • the engaging protrusion 14 of the protective cover 4 is located in front of the axial groove 21a in the guide means 21 as shown in FIG. 1B, and the engaging protrusion 14 is orthogonally crossed by the axial groove 21a. Therefore, the protective cover 4 is prevented from rotating with respect to the cylindrical portion 5.
  • the engaging protrusion 14 is further retracted in the axial direction beyond the inclined surface 21b formed at the rear end of the axial groove 21a, and finally, as shown in FIG. 4 is completely accommodated in the cylindrical portion 5, and the engaging projection 14 is located behind the cylindrical portion 5. Meanwhile, since the engaging protrusion 14 is not guided in the orthogonal direction by the guide means 21, the protective cover 4 moves backward without rotating. As a result, it is possible to puncture easily without generating rotational torque during puncturing.
  • the user When the needle assembly 1 is in use and the cannula 2 is punctured by the patient, the user operates the syringe to administer a medicine and the like, and then the user retracts the needle assembly 1 together with the syringe. And removed from the patient, resulting in the state of FIG.
  • the protective cover 4 moves forward relative to the tubular portion 5 while maintaining the state of being in contact with the patient by the biasing force of the spring portion 6.
  • the four engaging protrusions 14 move forward. Then, as shown in FIG. 3B, the engaging protrusion 14 comes into contact with an inclined surface 21b formed at the rear end portion of the axial groove 21a.
  • the engagement protrusion 14 cannot get over the inclined surface 21b.
  • the engagement protrusion 14 does not move into the axial groove 21a and return to the pre-use state of FIG.
  • the protective cover 4 is in contact with the patient's skin, but the protective cover 4 is only in contact with the skin only by the urging force of the spring portion 6, and the relationship shown in FIG. Since the protective cover 4 moves without rotating substantially linearly until the mating protrusion 14 comes into contact with the inclined surface 21b, rotation torque due to the rotation of the protective cover 4 does not occur, and puncture is easy.
  • the engaging protrusion 14 moves obliquely forward along the inclined surface 21b as the protective cover 4 moves forward, so that the protective cover 4 becomes a cylindrical part. 4 advances to the state after use as shown in FIG. At that time, when the engaging protrusion 14 reaches the through hole 22 formed at the end of the inclined surface 21b, the deformed portion 13 of the protective cover 4 returns to its original shape, and the engaging protrusion 14 penetrates. It protrudes and fits into the hole 22.
  • the protective cover 4 can be prevented from moving backward, the re-exposure of the cannula 2 is prevented, and the needle assembly 1 can be reused or misused. A puncture accident can be prevented.
  • the protective cover 4 surrounds the cannula 2 in the pre-use state and the post-use state, it is possible to prevent erroneous puncture to the user.
  • the state before use of FIG. 1 is changed to the state of use of FIG. 2, that is, when the cannula 2 is punctured into a patient
  • the engaging protrusion 14 of the protective cover 4 is moved in the axial direction by the guide means 21.
  • the protective cover 4 can be retracted without rotating.
  • the protective cover 4 does not rotate when puncturing the cannula 2, it is possible to puncture easily without generating rotational torque during puncturing.
  • the engaging projections 14 may be formed on the inner peripheral surface of the cylindrical portion 5, and the guide means 21 may be formed on the outer peripheral surface of the protective cover 4.
  • the inclined surface 21b is formed so as to face forward, and the engaging projection 14 is guided by the protective cover 4 moving forward and coming into contact with the inclined surface 21b from the front. .

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (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

L'invention concerne un ensemble aiguille (1) qui comprend : une enveloppe protectrice (4) qui avance et recule par rapport à un embout (3) qui maintient une canule (2) ; une section tubulaire (5) qui est placée sur l'embout et loge l'enveloppe protectrice de façon à pouvoir dépasser et se retirer de sa pointe ; une section de ressort (6) comme moyen d'actionnement monté avec élasticité entre l'embout et l'enveloppe protectrice ; une excroissance de contact (14) présente sur la section tubulaire (5) ou sur l'enveloppe protectrice ; et un moyen de guidage (21) qui est présent sur l'autre élément parmi la section tubulaire (5) ou l'enveloppe protectrice et qui régule le mouvement de l'excroissance de contact. Lorsque l'enveloppe protectrice recule pour passer d'un état pré-utilisation à un état d'utilisation, le moyen de guidage provoque le déplacement de l'excroissance de contact dans la direction axiale, et l'enveloppe protectrice recule sans rotation. Il n'y a pas de moment de torsion pendant l'utilisation, et la perforation peut donc être facilement effectuée.
PCT/JP2013/068346 2012-07-11 2013-07-04 Ensemble aiguille WO2014010503A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-155473 2012-07-11
JP2012155473A JP5963047B2 (ja) 2012-07-11 2012-07-11 針組立体

Publications (1)

Publication Number Publication Date
WO2014010503A1 true WO2014010503A1 (fr) 2014-01-16

Family

ID=49915961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/068346 WO2014010503A1 (fr) 2012-07-11 2013-07-04 Ensemble aiguille

Country Status (2)

Country Link
JP (1) JP5963047B2 (fr)
WO (1) WO2014010503A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104548282A (zh) * 2015-01-12 2015-04-29 江苏磐宇科技有限公司 一种防针刺保护装置的生产工艺
CN107921222A (zh) * 2016-04-11 2018-04-17 金桢窥 注射器结合型安全组装体及包括其的安全注射器
EP3370808A4 (fr) * 2015-11-03 2019-05-01 Dali Medical Devices Ltd. Aiguilles de sécurité et leurs procédés d'utilisation
EP3574946A1 (fr) * 2018-06-01 2019-12-04 Tianjin Huahong Technology Co., Ltd Aiguille d'injection jetable
CN115268562A (zh) * 2022-06-22 2022-11-01 贵州电网有限责任公司 一种用于保护装置的快速调节装置
US11529473B2 (en) 2015-11-03 2022-12-20 Dali Medical Devices Ltd. Safety needles and methods of use thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10792438B2 (en) * 2016-12-13 2020-10-06 Becton, Dickinson And Company Safety needle devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009154131A1 (fr) * 2008-06-20 2009-12-23 ニプロ株式会社 Ensemble aiguille
JP2011235108A (ja) * 2000-05-31 2011-11-24 Novo Nordisk As 使い捨て可能で両端が尖った注射針

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1315166C (fr) * 1988-10-05 1993-03-30 John S. Parry Dispositif pour injections
CA2468243C (fr) * 2001-11-30 2010-08-03 Novo Nordisk A/S Systeme d'aiguille de securite
CA2733932C (fr) * 2008-08-15 2017-04-11 Becton, Dickinson And Company Ensemble aiguille de stylo securise

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011235108A (ja) * 2000-05-31 2011-11-24 Novo Nordisk As 使い捨て可能で両端が尖った注射針
WO2009154131A1 (fr) * 2008-06-20 2009-12-23 ニプロ株式会社 Ensemble aiguille

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104548282A (zh) * 2015-01-12 2015-04-29 江苏磐宇科技有限公司 一种防针刺保护装置的生产工艺
EP3370808A4 (fr) * 2015-11-03 2019-05-01 Dali Medical Devices Ltd. Aiguilles de sécurité et leurs procédés d'utilisation
US11529473B2 (en) 2015-11-03 2022-12-20 Dali Medical Devices Ltd. Safety needles and methods of use thereof
CN107921222A (zh) * 2016-04-11 2018-04-17 金桢窥 注射器结合型安全组装体及包括其的安全注射器
EP3360592A4 (fr) * 2016-04-11 2019-04-03 Jung Gyu Kim Ensemble de sécurité couplé à une seringue et seringue de sécurité le comprenant
EP3574946A1 (fr) * 2018-06-01 2019-12-04 Tianjin Huahong Technology Co., Ltd Aiguille d'injection jetable
CN110548198A (zh) * 2018-06-01 2019-12-10 天津华鸿科技股份有限公司 一次性注射针头
US11376372B2 (en) 2018-06-01 2022-07-05 Tianjin Huahong Technology Co., Ltd. Disposable injection needle
CN110548198B (zh) * 2018-06-01 2022-07-15 天津华鸿科技股份有限公司 一次性注射针头
CN115268562A (zh) * 2022-06-22 2022-11-01 贵州电网有限责任公司 一种用于保护装置的快速调节装置
CN115268562B (zh) * 2022-06-22 2024-03-22 贵州电网有限责任公司 一种用于保护装置的快速调节装置

Also Published As

Publication number Publication date
JP5963047B2 (ja) 2016-08-03
JP2014014598A (ja) 2014-01-30

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