TW201834708A - Safety injector and safety mechanism usable therewith capable of calibrating a needle for only one time in installing the injector - Google Patents

Safety injector and safety mechanism usable therewith capable of calibrating a needle for only one time in installing the injector Download PDF

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Publication number
TW201834708A
TW201834708A TW107109491A TW107109491A TW201834708A TW 201834708 A TW201834708 A TW 201834708A TW 107109491 A TW107109491 A TW 107109491A TW 107109491 A TW107109491 A TW 107109491A TW 201834708 A TW201834708 A TW 201834708A
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Taiwan
Prior art keywords
needle
guide
safety
syringe
distal
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TW107109491A
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Chinese (zh)
Inventor
林作錢
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香港商千禧光醫療有限公司
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Publication of TW201834708A publication Critical patent/TW201834708A/en

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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
    • 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
    • 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

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

Abstract

The present invention discloses a safety injector and a safety mechanism usable therewith. The safety injector (1) includes: a syringe (2) having a proximal end (3), a distal end (4), a chamber (5) provided between the proximal end and the distal end and defining a longitudinal axis, and a needle holding portion (6) extending from the distal end to a distal side; a plunger (7) having a distal side portion inserted into the syringe from the proximal end of the syringe, and a proximal side portion located outside the syringe; a needle (8) having a proximal side portion inserted into a needle channel of the needle holding portion from the distal side of the needle holding portion, and a distal side portion located outside the needle holding portion, wherein the needle is hollow and in communication with fluid of the chamber of the syringe; and a safety mechanism (9) at least partially surrounding the needle holding portion for installation, wherein the distal side portion of the needle is not covered by the safety mechanism in an unactuated position of the safety mechanism, and at least the terminal of the distal side of the needle is covered by the safety mechanism in an actuated position to prevent accidental contact with the terminal of the distal side of the needle. According to the present invention, when the injector is assembled, the safety mechanism is installed first and then the needle is installed so that the needle is calibrated for only one time and the needle is not interfered before the safety mechanism is actuated.

Description

安全注射器和用於其的安全機構    Safety syringe and safety mechanism for the same   

本發明涉及一種安全注射器和用於安全注射器的安全機構。 The invention relates to a safety syringe and a safety mechanism for the safety syringe.

被使用過的注射器意外刺傷會傳染疾病。因此，現有技術教導了具有可致動式安全護罩的注射器，安全護罩能夠定位成防護在注射器使用之後與針尖意外接觸。現有技術安全護罩設有防護針尖的阻擋件，該阻擋件具有針通道，在組裝注射器的過程中需要使針穿過阻擋件的針通道以安裝帶有阻擋件的安全護罩，此時由於在安裝過程中難免觸碰到針而需要再次校準針，這是耗時且容易存在誤差的。 Accidental stabbing of a used syringe can spread disease. Thus, the prior art teaches syringes with actuatable safety shields that can be positioned to protect against accidental contact with the needle tip after use of the syringe. The prior art safety shield is provided with a barrier for protecting the needle tip, the barrier having a needle channel, and the needle needs to be passed through the needle channel of the barrier to assemble the safety shield with the barrier during assembly of the syringe. It is unavoidable to touch the needle during the installation process and need to calibrate the needle again, which is time consuming and prone to errors.

本發明旨在解決先前技術中存在的上述問題。 The present invention aims to solve the aforementioned problems in the prior art.

一方面，本發明提供了一種安全注射器，包括：針筒，其具有近端、遠端和在近端與遠端之間且限定縱向軸線的腔室，持針部從遠端向遠側延伸；柱塞，其具有從針筒的近端***針筒內的遠側部分和位於針筒外的近側部分；針，其具有從持針部的遠側***持針部的針通道內的近 側部分和位於持針部外的遠側部分，針是中空的且與針筒的腔室流體連通；以及安全機構，其至少部分環繞持針部安裝，在安全機構的未致動位置，針的遠側部分不被安全機構覆蓋，在安全機構的致動位置，針的至少遠側末端被安全機構覆蓋，以防止與針的遠側末端意外接觸。 In one aspect, the present invention provides a safety syringe including a syringe having a proximal end, a distal end, and a cavity between the proximal end and the distal end that defines a longitudinal axis, and the needle-holding portion extends distally from the distal end. A plunger having a distal portion inserted into the syringe from the proximal end of the syringe and a proximal portion located outside the syringe; a needle having a needle inserted into the needle channel of the needle holding portion from the distal side of the needle holding portion A proximal portion and a distal portion located outside the needle-holding portion, the needle is hollow and in fluid communication with the cavity of the syringe; and a safety mechanism, which is installed at least partially around the needle-holding portion, in an unactuated position of the safety mechanism, The distal portion of the needle is not covered by the safety mechanism. In the actuated position of the safety mechanism, at least the distal end of the needle is covered by the safety mechanism to prevent accidental contact with the distal end of the needle.

較佳地，安全機構至少部分環繞所述持針部軸向卡合。 Preferably, the safety mechanism is axially engaged at least partially around the needle holding portion.

較佳地，安全機構能夠環繞持針部自由旋轉。 Preferably, the safety mechanism can rotate freely around the needle holding portion.

較佳地，安全機構包括引導鎖定構件和保護構件，引導鎖定構件至少部分環繞持針部安裝，保護構件至少部分環繞持針部設置且位於引導鎖定構件的遠側，保護構件能夠從未致動位置運動至致動位置，在未致動位置時，針的遠側部分不被保護構件覆蓋，在致動位置時，針的至少遠側末端被保護構件覆蓋，引導鎖定構件和保護構件具有用於將保護構件可釋放地保持在未致動位置的機構、用於引導保護構件從未致動位置運動至致動位置的機構、和用於將保護構件鎖定在致動位置的機構。 Preferably, the safety mechanism includes a guide lock member and a protection member, the guide lock member is installed at least partially around the needle holding portion, the protection member is provided at least partially around the needle holding portion and is located on the distal side of the guide lock member, and the protection member can be never actuated The position is moved to the actuated position. In the unactuated position, the distal portion of the needle is not covered by the protective member. At the actuated position, at least the distal end of the needle is covered by the protective member. A mechanism for releasably maintaining a protection member in an unactuated position, a mechanism for guiding the protection member to move from an unactuated position to an actuated position, and a mechanism for locking the protection member in an actuated position.

較佳地，引導鎖定構件包括環繞持針部安裝的套筒部和從套筒部的外側沿縱向向近側延伸的引導鎖定部。 Preferably, the guide lock member includes a sleeve portion mounted around the needle holding portion and a guide lock portion extending longitudinally and proximally from the outside of the sleeve portion.

較佳地，保護構件包括在引導鎖定構件的套筒部的遠側環繞持針部設置的套筒部、從保護構件的套筒部的外側沿縱向向近側延伸的臂部、和在臂部的近端處的手指接觸部。 Preferably, the protection member includes a sleeve portion provided around the needle holding portion on a distal side of the sleeve portion of the guide lock member, an arm portion extending from the outside of the sleeve portion of the protection member in the longitudinal direction to the proximal side, and the arm The finger touches the part at the proximal end of the part.

較佳地，用於將保護構件可釋放地保持在未致動位置的機構包括引導鎖定構件的引導鎖定部上的彈片和保護構件的臂部上面向彈片一側沿縱向設置的凸塊，在未致動位置時，引導鎖定部上的彈片的至少一部分接收在凸塊的遠側，以將保護構件保持在未致動位置，凸塊被成形為允 許在向保護構件的手指接觸部施加向遠側的指力時，引導鎖定部上的彈片越上凸塊，以將保護構件從未致動位置釋放。 Preferably, the mechanism for releasably maintaining the protection member in the non-actuated position includes a spring piece on the guide lock portion of the guide lock member and a protrusion provided on the arm portion of the protection member in the longitudinal direction on the side facing the spring piece. In the non-actuated position, at least a portion of the shrapnel on the guide lock portion is received on the distal side of the projection to maintain the protection member in the non-actuated position, and the projection is shaped to allow application of a finger to the finger contact portion of the protection member. When a finger is applied on the far side, the elastic piece on the guide lock portion rises upwards to release the protective member from the unactuated position.

較佳地，用於引導保護構件從未致動位置運動至致動位置的機構包括引導鎖定構件的引導鎖定部上的至少一個縱向導槽和保護構件的臂部上的至少一個對應的縱向凸緣，在未致動位置時，縱向凸緣的遠側部分位於縱向導槽內，縱向導槽和縱向凸緣被成形為允許在向保護構件的手指接觸部施加向遠側的指力時，縱向凸緣沿著縱向導槽向遠側滑動，直到手指接觸部接觸到引導鎖定部而止擋。 Preferably, the mechanism for guiding the protection member to move from the unactuated position to the actuated position includes at least one longitudinal guide groove on the guide lock portion of the guide lock member and at least one corresponding longitudinal protrusion on the arm portion of the protection member. Edge, in the unactuated position, the distal portion of the longitudinal flange is located in the longitudinal guide groove, and the longitudinal guide groove and the longitudinal flange are shaped to allow a distal finger force to be applied to the finger contact portion of the protective member, The longitudinal flange slides distally along the longitudinal guide groove until the finger contact portion contacts the guide lock portion and stops.

較佳地，用於將保護構件鎖定在致動位置的機構包括引導鎖定構件的引導鎖定部上的彈片與保護構件的臂部上面向彈片一側沿縱向設置的凸塊以及保護構件的近端處設置的至少一個導向凸起部與鎖定構件的引導鎖定部上對應地設置的至少一個凹陷部，在保護構件從未致動位置運動至致動位置時，彈片能夠越過凸塊並卡在凸塊的近側，並且導向凸起部接收在凹陷部中，以使保護構件以與縱向軸線形成斜度的方式鎖定在致動位置。 Preferably, the mechanism for locking the protection member in the actuated position includes a spring piece on the guide lock portion of the guide lock member and a projection provided on the arm portion of the protection member in the longitudinal direction on the side facing the spring piece and the proximal end of the protection member. At least one guide protrusion provided at the place corresponding to at least one recess provided on the guide lock portion of the lock member, when the protection member moves from the unactuated position to the actuated position, the elastic piece can pass over the projection and be caught on the projection The block is proximal, and the guide projection is received in the depression to lock the protective member in the actuated position in a manner that forms a slope with the longitudinal axis.

較佳地，引導鎖定構件的套筒部內側設有突出部或凹陷部，突出部或凹陷部接合持針部外側上形成的凹陷部或突出部，以將引導鎖定構件的套筒部軸向卡合在針筒上。 Preferably, a protruding portion or a recessed portion is provided on an inner side of the sleeve portion of the guide locking member, and the protruding portion or the recessed portion engages a recessed portion or a protruding portion formed on the outer side of the needle holding portion to axially guide the sleeve portion of the locking member. Snaps onto the syringe.

較佳地，安全注射器還包括針罩，針罩用於罩住針並被成形為與安全機構的形狀相適配。 Preferably, the safety syringe further comprises a needle cover for covering the needle and is shaped to fit the shape of the safety mechanism.

較佳地，針罩的內表面設有至少一對肋，所述至少一對肋與引導鎖定構件的引導鎖定部上的至少一個凸緣滑動接合。 Preferably, the inner surface of the needle shield is provided with at least a pair of ribs, which are in sliding engagement with at least one flange on the guide lock portion of the guide lock member.

較佳地，針罩的內表面還設有一對肋，所述一對肋與引導鎖定構件的套筒部上的楔形凸塊擠壓接合。 Preferably, the inner surface of the needle shield is further provided with a pair of ribs, and the pair of ribs are press-engaged with the wedge-shaped projections on the sleeve portion of the guide locking member.

較佳地，針罩的外表面設有凸出的防滑條。 Preferably, the outer surface of the needle shield is provided with a protruding anti-slip strip.

較佳地，保護構件的套筒部形成為帶有頂部開孔的帽狀，頂部開孔的孔徑小於保護構件的套筒部主體的內徑。 Preferably, the sleeve portion of the protection member is formed in a cap shape with a top opening, and the hole diameter of the top opening is smaller than the inner diameter of the sleeve portion body of the protection member.

較佳地，手指接觸部被成形為從保護構件的臂部的近端橫向向外側延伸的板狀部。 Preferably, the finger contact portion is formed as a plate-like portion extending laterally outward from the proximal end of the arm portion of the protective member.

另一方面，本發明提供了一種用於安全注射器的安全機構，安全機構至少部分環繞安全注射器的持針部安裝，在安全機構的未致動位置，針的遠側部分不被安全機構覆蓋，在安全機構的致動位置，針的至少遠側末端被安全機構覆蓋，以防止與針的遠側末端意外接觸。 In another aspect, the present invention provides a safety mechanism for a safety syringe. The safety mechanism is installed at least partially around the needle holding portion of the safety syringe. In the unactivated position of the safety mechanism, the distal portion of the needle is not covered by the safety mechanism. In the actuated position of the safety mechanism, at least the distal end of the needle is covered by the safety mechanism to prevent accidental contact with the distal end of the needle.

較佳地，安全機構至少部分環繞持針部軸向卡合。 Preferably, the safety mechanism is axially engaged at least partially around the needle holding portion.

較佳地，安全機構能夠環繞持針部自由旋轉。 Preferably, the safety mechanism can rotate freely around the needle holding portion.

較佳地，安全機構包括引導鎖定構件和保護構件，引導鎖定構件至少部分環繞持針部安裝，保護構件至少部分環繞持針部設置且位於引導鎖定構件的遠側，保護構件能夠從未致動位置運動至致動位置，在未致動位置時，針的遠側部分不被保護構件覆蓋，在致動位置時，針的至少遠側末端被保護構件覆蓋，引導鎖定構件和保護構件具有用於將保護構件可釋放地保持在未致動位置的機構、用於引導保護構件從未致動位置運動至致動位置的機構、和用於將保護構件鎖定在致動位置的機構。 Preferably, the safety mechanism includes a guide lock member and a protection member, the guide lock member is installed at least partially around the needle holding portion, the protection member is provided at least partially around the needle holding portion and is located on the distal side of the guide lock member, and the protection member can be never actuated The position is moved to the actuated position. In the unactuated position, the distal portion of the needle is not covered by the protective member. At the actuated position, at least the distal end of the needle is covered by the protective member. A mechanism for releasably maintaining a protection member in an unactuated position, a mechanism for guiding the protection member to move from an unactuated position to an actuated position, and a mechanism for locking the protection member in an actuated position.

較佳地，引導鎖定構件包括環繞持針部安裝的套筒部和從套筒部的外側沿縱向向近側延伸的引導鎖定部。 Preferably, the guide lock member includes a sleeve portion mounted around the needle holding portion and a guide lock portion extending longitudinally and proximally from the outside of the sleeve portion.

較佳地，保護構件包括在引導鎖定構件的套筒部的遠側環繞持針部設置的套筒部、從保護構件的套筒部的外側沿縱向向近側延伸的臂部、和在臂部的近端處的手指接觸部。 Preferably, the protection member includes a sleeve portion provided around the needle holding portion on a distal side of the sleeve portion of the guide lock member, an arm portion extending from the outside of the sleeve portion of the protection member in the longitudinal direction to the proximal side, and the arm The finger touches the part at the proximal end of the part.

較佳地，用於將保護構件可釋放地保持在未致動位置的機構包括引導鎖定構件的引導鎖定部上的彈片和保護構件的臂部上面向彈片一側沿縱向設置的凸塊，在未致動位置時，引導鎖定部上的彈片的至少一部分接收在凸塊的遠側，以將保護構件保持在未致動位置，凸塊被成形為允許在向保護構件的手指接觸部施加向遠側的指力時，引導鎖定部上的彈片越上凸塊，以將保護構件從未致動位置釋放。 Preferably, the mechanism for releasably maintaining the protection member in the non-actuated position includes a spring piece on the guide lock portion of the guide lock member and a protrusion provided on the arm portion of the protection member in the longitudinal direction on the side facing the spring piece. In the non-actuated position, at least a portion of the shrapnel on the guide lock portion is received on the distal side of the projection to maintain the protection member in the non-actuated position, and the projection is shaped to allow application of a finger to the finger contact portion of the protection member. When a finger is applied on the far side, the elastic piece on the guide lock portion rises upwards to release the protective member from the unactuated position.

較佳地，用於引導保護構件從未致動位置運動至致動位置的機構包括引導鎖定構件的引導鎖定部上的至少一個縱向導槽和保護構件的臂部上的至少一個對應的縱向凸緣，在未致動位置時，縱向凸緣的遠側部分位於縱向導槽內，縱向導槽和縱向凸緣被成形為允許在向保護構件的手指接觸部施加向遠側的指力時，縱向凸緣沿著縱向導槽向遠側滑動，直到手指接觸部接觸到引導鎖定部而止擋。 Preferably, the mechanism for guiding the protection member to move from the unactuated position to the actuated position includes at least one longitudinal guide groove on the guide lock portion of the guide lock member and at least one corresponding longitudinal protrusion on the arm portion of the protection member. Edge, in the unactuated position, the distal portion of the longitudinal flange is located in the longitudinal guide groove, and the longitudinal guide groove and the longitudinal flange are shaped to allow a distal finger force to be applied to the finger contact portion of the protective member, The longitudinal flange slides distally along the longitudinal guide groove until the finger contact portion contacts the guide lock portion and stops.

較佳地，用於將保護構件鎖定在致動位置的機構包括引導鎖定構件的引導鎖定部上的彈片與保護構件的臂部上面向彈片一側沿縱向設置的凸塊以及保護構件的近端處設置的至少一個導向凸起部與鎖定構件的引導鎖定部上對應地設置的至少一個凹陷部，在保護構件從未致動位置運動至致動位置時，彈片能夠越過凸塊並卡在凸塊的近側，並且導向凸起部接收在凹陷部中，以使保護構件以與縱向軸線形成斜度的方式鎖定在致動位置。 Preferably, the mechanism for locking the protection member in the actuated position includes a spring piece on the guide lock portion of the guide lock member and a projection provided on the arm portion of the protection member in the longitudinal direction on the side facing the spring piece and the proximal end of the protection member. At least one guide protrusion provided at the place corresponding to at least one recess provided on the guide lock portion of the lock member, when the protection member moves from the unactuated position to the actuated position, the elastic piece can pass over the projection and be caught on the projection The block is proximal, and the guide projection is received in the depression to lock the protective member in the actuated position in a manner that forms a slope with the longitudinal axis.

較佳地，引導鎖定構件的套筒部內側設有突出部或凹陷部，突出部或凹陷部接合持針部外側上形成的凹陷部或突出部，以將引導鎖定構件的套筒部軸向卡合在針筒上。 Preferably, a protruding portion or a recessed portion is provided on an inner side of the sleeve portion of the guide locking member, and the protruding portion or the recessed portion engages a recessed portion or a protruding portion formed on the outer side of the needle holding portion to axially guide the sleeve portion of the locking member. Snaps onto the syringe.

較佳地，保護構件的套筒部形成為帶有頂部開孔的帽狀，頂部開孔的孔徑小於保護構件的套筒部主體的內徑。 Preferably, the sleeve portion of the protection member is formed in a cap shape with a top opening, and the hole diameter of the top opening is smaller than the inner diameter of the sleeve portion body of the protection member.

較佳地，手指接觸部被成形為從保護構件的臂部的近端橫向向外側延伸的板狀部。 Preferably, the finger contact portion is formed as a plate-like portion extending laterally outward from the proximal end of the arm portion of the protective member.

根據本發明，由於安全機構安裝在針筒的持針部上，在組裝注射器時，能夠先安裝好安全機構，再安裝針，這樣只需校準一次針，且在安全機構被致動前不會干涉到針。 According to the present invention, since the safety mechanism is mounted on the needle holding portion of the syringe, the safety mechanism can be installed before the needle is assembled when the syringe is assembled, so that the needle needs to be calibrated only once, and the safety mechanism is not activated before the safety mechanism is activated. Interfere with the needle.

根據本發明，安全機構能夠環繞針筒的持針部自由旋轉，以便於認准針尖培面。 According to the present invention, the safety mechanism can rotate freely around the needle holding portion of the syringe, so as to facilitate the identification of the needle tip surface.

根據本發明，安全機構隨著保護構件近端處的導向凸起部與引導鎖定構件的凹陷部複合時形成的斜度，達到針尖偏向一邊的目的，使針尖影藏在保護罩內。 According to the present invention, the safety mechanism follows the inclination formed when the guide convex portion at the proximal end of the protection member and the recessed portion of the guide lock member are compounded to achieve the purpose of the needle tip to one side, so that the needle tip is hidden in the protective cover.

另外，根據本發明的安全注射器相對于現有技術結構簡單、表面光滑、可單手操作且對針頭的防護性更好，從而防止了針頭造成的意外刺傷。 In addition, compared with the prior art, the safety syringe according to the present invention has a simple structure, a smooth surface, one-handed operation, and better protection of the needle, thereby preventing accidental puncture injuries caused by the needle.

1‧‧‧安全注射器 1‧‧‧ safety syringe

2‧‧‧針筒 2‧‧‧ syringe

3‧‧‧近端 3‧‧‧ proximal

4‧‧‧遠端 4‧‧‧ remote

5‧‧‧腔室 5‧‧‧ chamber

6‧‧‧持針部 6‧‧‧ Needle holding section

7‧‧‧柱塞 7‧‧‧ plunger

8‧‧‧針 8‧‧‧ needle

9‧‧‧安全機構 9‧‧‧ Security Agency

10‧‧‧引導鎖定構件 10‧‧‧Guide lock member

11‧‧‧保護構件 11‧‧‧Protective member

12‧‧‧套筒部 12‧‧‧ Sleeve

13‧‧‧引導鎖定部 13‧‧‧Guide lock

14‧‧‧套筒部 14‧‧‧ Sleeve

15‧‧‧臂部 15‧‧‧ arm

16‧‧‧手指接觸部 16‧‧‧finger contact

17‧‧‧彈片 17‧‧‧ shrapnel

18‧‧‧導向凸起部 18‧‧‧ Guide protrusion

19‧‧‧凸塊 19‧‧‧ bump

20‧‧‧遠端 20‧‧‧Remote

21‧‧‧縱向導槽 21‧‧‧ longitudinal guide groove

22‧‧‧縱向凸緣 22‧‧‧Longitudinal flange

23‧‧‧近側 23‧‧‧ near side

24‧‧‧突出部 24‧‧‧ protrusion

25‧‧‧凹陷部 25‧‧‧ Depression

26‧‧‧針罩 26‧‧‧ needle shield

27‧‧‧頂部開孔 27‧‧‧ top opening

28‧‧‧套筒部主體 28‧‧‧ sleeve body

29‧‧‧凹陷部 29‧‧‧ Depression

30‧‧‧凸緣 30‧‧‧ flange

31、32‧‧‧肋 31, 32‧‧‧ rib

33‧‧‧楔形凸塊 33‧‧‧ Wedge-shaped bump

34‧‧‧防滑條 34‧‧‧Slip

圖1是根據本發明一種實施方式的安全注射器的立體圖，其中安全注射器帶有針罩。 FIG. 1 is a perspective view of a safety syringe with a needle shield according to an embodiment of the present invention.

圖2是圖1所示的安全注射器的側視圖，其中移除了針罩且安全機構處於未致動位置。 FIG. 2 is a side view of the safety syringe shown in FIG. 1 with the needle shield removed and the safety mechanism in an unactuated position.

圖3是圖2的A-A剖視圖。 Fig. 3 is a sectional view taken along the line A-A in Fig. 2.

圖4是圖3的局部放大圖。 FIG. 4 is a partially enlarged view of FIG. 3.

圖5是圖1所示的安全注射器移除了針罩時的立體圖。 FIG. 5 is a perspective view of the safety syringe shown in FIG. 1 with the needle shield removed.

圖6是圖1所示的安全注射器的側視圖，其中移除了針罩且安全機構處於致動位置。 6 is a side view of the safety syringe shown in FIG. 1 with the needle shield removed and the safety mechanism in an actuated position.

圖7是圖6的B-B剖視圖。 Fig. 7 is a B-B sectional view of Fig. 6.

圖8是圖6的C-C剖視圖。 Fig. 8 is a sectional view taken along the line C-C in Fig. 6.

圖9是根據本發明一種實施方式的引導鎖定構件的立體圖。 FIG. 9 is a perspective view of a guide lock member according to an embodiment of the present invention.

圖10是根據本發明一種實施方式的保護構件的立體圖。 FIG. 10 is a perspective view of a protective member according to an embodiment of the present invention.

圖11是根據本發明一種實施方式的針罩的立體圖。 FIG. 11 is a perspective view of a needle shield according to an embodiment of the present invention.

圖12是圖11的針罩與引導鎖定構件接合的立體圖。 FIG. 12 is a perspective view of the needle cover of FIG. 11 being engaged with the guide lock member.

下面將參照附圖解釋本發明的安全注射器、特別是其安全機構的結構和工作原理。但是，所屬技術領域中具有通常知識者應該理解，本發明的安全機構不僅僅限於注射器，也可以應用於其他醫療器械，例如採血針等。本文中提及的“近側”、“遠側”、“近端”和“遠端”均是相對于醫護人員進行注射操作而言的，靠近進行注射操作的醫護人員的一側或一端為“近側”和“近端”，而遠離進行注射操作的醫護人員的一側或一端為“遠側”和“遠端”。 The structure and working principle of the safety syringe of the present invention, particularly its safety mechanism, will be explained below with reference to the drawings. However, those with ordinary knowledge in the technical field should understand that the safety mechanism of the present invention is not limited to syringes, but can also be applied to other medical devices, such as blood collection needles. The "proximal", "distal", "proximal", and "distal" mentioned in this article are all relative to the injection operation performed by medical personnel, and the side or end close to the medical personnel performing injection operation is "Proximal" and "proximal", while the side or end remote from the medical staff performing the injection operation is "distal" and "distal".

圖1是根據本發明一種實施方式的安全注射器的立體圖，其中安全注射器帶有針罩。安全注射器1包括針筒2、柱塞7、針8、安全機構9和可選的針罩26。針筒2具有近端3、遠端4和在近端3與遠端4之間且限定縱向軸線的腔室5，腔室5用於容納注射用藥物等。持針部6從針筒2的遠端4向遠側延伸，持針部6與針筒2可以是一體成形的，也可以是連接在一起的兩個部件。持針部6具有中央針通道，用於接收針的一部分並保持針。柱塞7具有從針筒的近端3***針筒2內的遠側部分和位於針筒外的近側部分。針8具有從持針部6的遠側***持針部6的針通道內的近側部分和位於持針部6外的遠側部分，針是中空的，其***持針部6的針通道內且與針筒2的腔室5流體連通。安全機構9至少部分環繞持針部6安裝，在安全機構9的未致動位置，針8的遠側部分不被安全機構9覆蓋，在安全機構9的致動位置，針8的至少遠側末端被安全機構9覆蓋，以防止與針8的遠側末端意外接觸。安全機構9可以由熱塑性塑膠或其它任何合適的材料製成。可選的針罩26用於罩住針8並被成形為與安全機構9的形狀相適配。 FIG. 1 is a perspective view of a safety syringe with a needle shield according to an embodiment of the present invention. The safety syringe 1 includes a syringe 2, a plunger 7, a needle 8, a safety mechanism 9, and an optional needle shield 26. The syringe 2 has a proximal end 3, a distal end 4, and a cavity 5 between the proximal end 3 and the distal end 4 that defines a longitudinal axis, and the cavity 5 is used to receive an injection drug or the like. The needle-holding portion 6 extends distally from the distal end 4 of the syringe 2. The needle-holding portion 6 and the syringe 2 may be integrally formed or two components connected together. The needle holding portion 6 has a central needle passage for receiving a part of the needle and holding the needle. The plunger 7 has a distal portion inserted into the syringe 2 from the proximal end 3 of the syringe and a proximal portion located outside the syringe. The needle 8 has a proximal portion inserted into the needle channel of the needle holding portion 6 from the distal side of the needle holding portion 6 and a distal portion located outside the needle holding portion 6. The needle is hollow and inserted into the needle channel of the needle holding portion 6 Inside and in fluid communication with the chamber 5 of the syringe 2. The safety mechanism 9 is installed at least partially around the needle-holding portion 6. In the non-actuated position of the safety mechanism 9, the distal portion of the needle 8 is not covered by the safety mechanism 9. In the activated position of the safety mechanism 9, at least the distal side of the needle 8 The tip is covered by a safety mechanism 9 to prevent accidental contact with the distal tip of the needle 8. The safety mechanism 9 may be made of thermoplastic or any other suitable material. An optional needle shield 26 is used to cover the needle 8 and is shaped to fit the shape of the safety mechanism 9.

以下將詳細描述根據本發明一種實施方式的安全機構10。圖2是圖1所示的安全注射器的側視圖，其中移除了針罩且安全機構處於未致動位置。圖3是圖2的A-A剖視圖。圖4是圖3的局部放大圖。參照圖2至圖4，安全機構9至少部分環繞持針部軸向卡合。在另一種實施方式中，安全機構9能夠圍繞持針部自由旋轉，以便於認准針尖培面。安全機構9包括引導鎖定構件10和保護構件11。引導鎖定構件10包括環繞持針部6安裝的套筒部12和從套筒部12的外側沿縱向向近側延伸的引導鎖定部13。 The security mechanism 10 according to one embodiment of the present invention will be described in detail below. FIG. 2 is a side view of the safety syringe shown in FIG. 1 with the needle shield removed and the safety mechanism in an unactuated position. Fig. 3 is a sectional view taken along the line A-A in Fig. 2. FIG. 4 is a partially enlarged view of FIG. 3. 2 to 4, the safety mechanism 9 is axially engaged at least partially around the needle holding portion. In another embodiment, the safety mechanism 9 can rotate freely around the needle holding portion, so as to facilitate the identification of the needle tip surface. The safety mechanism 9 includes a guide lock member 10 and a protection member 11. The guide lock member 10 includes a sleeve portion 12 mounted around the needle holding portion 6 and a guide lock portion 13 extending from the outside of the sleeve portion 12 in the longitudinal direction to the proximal side.

引導鎖定構件10的套筒部12內側可以設有突出部24，突出部 24可以接合持針部6外側上形成的凹陷部25，以將引導鎖定構件10的套筒部12軸向卡合在針筒上。反之，引導鎖定構件10的套筒部12內側可以設有凹陷部，凹陷部可以接合持針部6外側上形成的突出部，以將引導鎖定構件10的套筒部12軸向卡合在針筒上。在圖2至圖4所示的實施方式中，持針部6的外徑小於針筒2的外徑，由此在持針部6與針筒2的交界處形成保持台肩，在持針部6上與該交界部位相距一縱向距離處設有凸緣，所述保持台肩與所述凸緣之間形成用於接收引導鎖定構件10的套筒部12內側的突出部24的凹陷部25，以將引導鎖定構件10的套筒部12軸向卡合在針筒上。 A protruding portion 24 may be provided inside the sleeve portion 12 of the guide locking member 10, and the protruding portion 24 may engage a recessed portion 25 formed on the outside of the needle holding portion 6 to axially engage the sleeve portion 12 of the guide locking member 10 on On the syringe. Conversely, a recessed portion may be provided inside the sleeve portion 12 of the guide lock member 10, and the recessed portion may engage a protruding portion formed on the outside of the needle holding portion 6 to axially engage the sleeve portion 12 of the guide lock member 10 with the needle. On the tube. In the embodiment shown in FIG. 2 to FIG. 4, the outer diameter of the needle holding portion 6 is smaller than the outer diameter of the syringe 2, so that a holding shoulder is formed at the boundary between the needle holding portion 6 and the syringe 2, A flange is provided on the portion 6 at a longitudinal distance from the boundary portion, and a recessed portion is formed between the retaining shoulder and the flange to receive the protruding portion 24 inside the sleeve portion 12 of the guide locking member 10. 25 to axially engage the sleeve portion 12 of the guide lock member 10 on the syringe.

保護構件11可以包括在引導鎖定構件10的套筒部12的遠側環繞持針部6設置的套筒部14、從保護構件11的套筒部14的外側沿縱向向近側延伸的臂部15、和在臂部15的近端處的手指接觸部16(參照圖10)。保護構件11的手指接觸部16優選被成形為從保護構件11的臂部15的近端橫向向外側延伸的板狀部。更佳地，板狀部表面上設有小突起，以增加醫護人員用手指推動保護構件11時的觸感。通過向手指接觸部16施加指壓，保護構件11可以從未致動位置(如圖3所示)運動至致動位置(如圖7所示)。在未致動位置時，針8的遠側部分不被保護構件11覆蓋，在致動位置時，針8的至少遠側末端被保護構件11覆蓋。 The protective member 11 may include a sleeve portion 14 provided around the needle holding portion 6 on the far side of the sleeve portion 12 of the guide lock member 10, and an arm portion extending longitudinally and proximally from the outside of the sleeve portion 14 of the protection member 11 15, and a finger contact portion 16 at the proximal end of the arm portion 15 (see FIG. 10). The finger contact portion 16 of the protective member 11 is preferably formed as a plate-like portion extending laterally outward from the proximal end of the arm portion 15 of the protective member 11. More preferably, small protrusions are provided on the surface of the plate-like portion to increase the tactile sensation when the medical staff pushes the protective member 11 with their fingers. By applying finger pressure to the finger contact portion 16, the protective member 11 can be moved from the unactuated position (shown in FIG. 3) to the actuated position (shown in FIG. 7). In the non-actuated position, the distal portion of the needle 8 is not covered by the protective member 11, and in the activated position, at least the distal end of the needle 8 is covered by the protective member 11.

引導鎖定構件10和保護構件11可以具有用於將保護構件11可釋放地保持在未致動位置的機構、用於引導保護構件11從未致動位置運動至致動位置的機構、和用於將保護構件11鎖定在致動位置的機構。 The guide lock member 10 and the protection member 11 may have a mechanism for releasably holding the protection member 11 in an unactuated position, a mechanism for guiding the protection member 11 to move from an unactuated position to an actuated position, and Mechanism that locks the protective member 11 in the actuated position.

用於將保護構件11可釋放地保持在未致動位置的機構可以包括引導鎖定構件10的引導鎖定部13上的彈片17(參照圖9)和保護構件11 的臂部15上面向彈片17一側沿縱向設置的凸塊19(參照圖10)。較佳地，彈片17為從引導鎖定部13上成角度地向遠側伸出的突片，該突片設有卡爪，該卡爪能夠卡在臂部15上的凸塊19的遠端20，以將保護構件保持在未致動位置。根據另一種實施方式，可以沿保護構件11的臂部15的縱向設置多個凸塊19。凸塊19被成形為允許在向保護構件的手指接觸部施加向遠側的指力時，引導鎖定部13上的彈片17越上凸塊19，以將保護構件從未致動位置釋放。 The mechanism for releasably holding the protection member 11 in the unactuated position may include a spring piece 17 (refer to FIG. 9) on the guide lock portion 13 of the guide lock member 10 and an arm portion 15 of the protection member 11 facing the spring piece 17- The protrusion 19 (refer FIG. 10) provided in the longitudinal direction of the side. Preferably, the elastic piece 17 is a protruding piece that protrudes to the far side at an angle from the guide lock portion 13. The protruding piece is provided with a claw that can be clamped on the distal end of the projection 19 on the arm portion 15. 20 to keep the protective member in an unactuated position. According to another embodiment, a plurality of bumps 19 may be provided in the longitudinal direction of the arm portion 15 of the protection member 11. The projection 19 is shaped to allow a finger 17 on the finger protection portion of the protection member to guide the elastic piece 17 on the locking portion 13 over the projection 19 to release the protection member from the unactuated position when a distal finger force is applied.

用於引導保護構件11從未致動位置運動至致動位置的機構包括引導鎖定構件10的引導鎖定部13上的至少一個縱向導槽21和保護構件11的臂部15上的至少一個對應的縱向凸緣22。較佳地，在引導保護部13的左右兩側各設置一縱向導槽21，且相應地在保護構件11的臂部15上與縱向導槽21對應的位置各設置一縱向凸緣22。在未致動位置時，縱向凸緣22的遠側部分位於縱向導槽21內，縱向導槽21和縱向凸緣22被成形為允許在向保護構件11的手指接觸部16施加向遠側的指力時，縱向凸緣22沿著縱向導槽21向遠側滑動，直到手指接觸部16接觸到引導鎖定部13而止擋。 The mechanism for guiding the protection member 11 to move from the unactuated position to the actuated position includes at least one longitudinal guide groove 21 on the guide lock portion 13 of the guide lock member 10 and at least one corresponding one on the arm portion 15 of the protection member 11 Longitudinal flange 22. Preferably, a longitudinal guide groove 21 is provided on each of the left and right sides of the guide protection portion 13, and a longitudinal flange 22 is provided on each of the arm portions 15 of the protection member 11 corresponding to the longitudinal guide groove 21. In the non-actuated position, the distal portion of the longitudinal flange 22 is located in the longitudinal guide groove 21, and the longitudinal guide groove 21 and the longitudinal flange 22 are shaped to allow application of a distal end to the finger contact portion 16 of the protective member 11. When a finger is applied, the longitudinal flange 22 slides distally along the longitudinal guide groove 21 until the finger contact portion 16 contacts the guide lock portion 13 and stops.

用於將保護構件11鎖定在致動位置的機構包括引導鎖定構件10的引導鎖定部13上的彈片17與保護構件的臂部15上面向彈片17一側沿縱向設置的凸塊19以及保護構件的近端處設置的至少一個導向凸起部18與鎖定構件的引導鎖定部上設置的至少一個凹陷部29。較佳地，在保護構件的近端左右兩側各設有一個導向凸起部18，並且相應地在鎖定構件的引導鎖定部的近端左右兩側各設有一個凹陷部29。並且，較佳地，保護構件11的套筒部14形成為帶有頂部開孔27的帽狀，頂部開孔27的孔徑小於保護構 件的套筒部主體28的內徑。在保護構件從未致動位置運動至致動位置時，彈片17能夠越過凸塊19並卡在凸塊19的近側23(如圖7所示)，並且導向凸起部18接收在凹陷部29中(如圖8所示)，這使得處於致動位置的保護構件11的縱向軸線與注射器的縱向軸線成角度，進而導致針頭不會對準保護構件11的帽狀套筒部14的頂部開孔27，而是貼靠在套筒部主體內壁上，進一步增加了避免針頭刺傷的安全性。 The mechanism for locking the protection member 11 in the actuated position includes a spring piece 17 on the guide lock portion 13 of the guide lock member 10 and a protrusion 19 on the side of the arm portion 15 of the protection member facing the spring piece 17 in the longitudinal direction and the protection member The at least one guide protrusion 18 provided at the proximal end of the and the at least one recess 29 provided on the guide lock portion of the lock member. Preferably, a guide protrusion 18 is provided on each of the right and left sides of the proximal end of the protection member, and a depression 29 is provided on each of the right and left sides of the proximal end of the guide lock portion of the lock member. Further, it is preferable that the sleeve portion 14 of the protection member 11 is formed in a cap shape with a top opening 27, and the diameter of the top opening 27 is smaller than the inner diameter of the sleeve portion main body 28 of the protection member. When the protective member is moved from the unactuated position to the actuated position, the elastic piece 17 can pass over the projection 19 and be caught on the proximal side 23 of the projection 19 (as shown in FIG. 7), and the guide projection 18 is received in the depression 29 (as shown in FIG. 8), this causes the longitudinal axis of the protective member 11 in the actuated position to be angled with the longitudinal axis of the syringe, thereby causing the needle not to align with the top of the cap-shaped sleeve portion 14 of the protective member 11 The opening 27 abuts against the inner wall of the main body of the sleeve portion, further increasing the safety of avoiding needle puncture.

根據本發明的另一種實施方式，引導鎖定構件10和保護構件11的用於將保護構件可釋放地保持在未致動位置的機構、用於引導保護構件從未致動位置運動至致動位置的機構、和用於將保護構件鎖定在致動位置的機構可以包括：引導鎖定構件的引導鎖定部上沿縱向設置的凸塊和保護構件的臂部上面向凸塊一側的彈片；引導鎖定構件的引導鎖定部上的至少一個縱向凸緣和保護構件的臂部上的至少一個對應的縱向凹槽；和引導鎖定構件的引導鎖定部上沿縱向設置的凸塊和保護構件的臂部上面向凸塊一側的彈片以及保護構件的近端處設置的至少一個凹陷部與鎖定構件的引導鎖定部上對應地設置的至少一個凸起部，只要能夠實現使保護構件從未致動位置運動到致動位置即可。 According to another embodiment of the present invention, a mechanism for guiding the locking member 10 and the protective member 11 for releasably holding the protective member in the unactuated position, and for guiding the protective member to move from the unactuated position to the actuated position The mechanism and the mechanism for locking the protection member in the actuated position may include: a projection provided on the guide lock portion of the guide lock member in the longitudinal direction and an elastic piece on the arm portion of the protection member facing the bump side; the guide lock At least one longitudinal flange on the guide lock portion of the member and at least one corresponding longitudinal groove on the arm portion of the protection member; and a projection provided on the guide lock portion of the guide lock member in the longitudinal direction and on the arm portion of the protection member An elastic piece facing the convex side and at least one recessed portion provided at the proximal end of the protection member and at least one convex portion correspondingly provided on the guide lock portion of the lock member, as long as the protection member can be moved from an unactuated position Just go to the actuated position.

圖11是根據本發明一種實施方式的針罩26的立體圖。如圖所示，針罩26的內表面在缺口部的兩側各設有一對肋31，每對肋31分別與引導鎖定構件的引導鎖定部13上的凸緣30接合。另外，針罩26的內表面還設有一對肋32，較佳地，該對肋32沿周向位於兩對肋31的大致中間位置，並且與引導鎖定構件的套筒部12上的楔形凸塊33接合。在保護構件11處於未致動位置時，針罩26從針8的遠側向近側移動罩住針8，在移動過程中，針 罩26的內表面上的肋31與引導鎖定構件的引導鎖定部13上的凸緣30滑動接合，並且針罩26的內表面上的肋32與引導鎖定構件的套筒部12上的楔形凸塊33擠壓接合，以牢固固定針罩26(參照圖12)。另外，針罩26的外表面設有凸出的防滑條34，以便於在使用時移除針罩26。 FIG. 11 is a perspective view of a needle cover 26 according to an embodiment of the present invention. As shown in the figure, the inner surface of the needle shield 26 is provided with a pair of ribs 31 on both sides of the notch portion, and each pair of ribs 31 is respectively engaged with the flange 30 on the guide lock portion 13 of the guide lock member. In addition, the inner surface of the needle shield 26 is further provided with a pair of ribs 32. Preferably, the pair of ribs 32 are located at a substantially intermediate position of the two pairs of ribs 31 in the circumferential direction and are wedge-shaped on the sleeve portion 12 of the guide locking member. Block 33 is engaged. When the protective member 11 is in the non-actuated position, the needle cover 26 moves from the distal side of the needle 8 to the proximal side to cover the needle 8. During the movement, the rib 31 on the inner surface of the needle cover 26 and the guide of the guide lock member are guided. The flange 30 on the locking portion 13 is slidably engaged, and the rib 32 on the inner surface of the needle cover 26 is press-engaged with the wedge-shaped projection 33 on the sleeve portion 12 that guides the locking member to securely fix the needle cover 26 (see FIG. 12). In addition, the outer surface of the needle shield 26 is provided with a protruding anti-slip strip 34 to facilitate removal of the needle shield 26 during use.

上面參照附圖所示的具體實施方式描述了本發明的具體結構，然而，所屬技術領域中具有通常知識者應該理解，上面的具體描述是舉例性質的，所屬技術領域中具有通常知識者根據上面的描述，能夠作出各種變型和改進，而不會脫離本發明的範圍。 The specific structure of the present invention has been described above with reference to the specific embodiments shown in the accompanying drawings. However, those with ordinary knowledge in the technical field should understand that the specific description above is exemplary, and those with ordinary knowledge in the technical field according to the above Various modifications and improvements can be made to the description without departing from the scope of the present invention.

Claims (28)

一種安全注射器(1)，包括：一針筒(2)，其具有一近端(3)、一遠端(4)和在該近端與該遠端之間且限定一縱向軸線的一腔室(5)，一持針部(6)從該遠端向遠側延伸；一柱塞(7)，其具有從該針筒的該近端***該針筒內的遠側部分和位於該針筒外的近側部分；一針(8)，其具有從該持針部的遠側***該持針部的一針通道內的近側部分和位於該持針部外的遠側部分，該針是中空的且與該針筒的該腔室流體連通；以及一安全機構(9)，其至少部分環繞該持針部安裝，在該安全機構的一未致動位置，該針的遠側部分不被該安全機構覆蓋，在該安全機構的一致動位置，該針的至少遠側末端被該安全機構覆蓋，以防止與該針的遠側末端意外接觸。     A safety syringe (1) includes a syringe (2) having a proximal end (3), a distal end (4), and a cavity between the proximal end and the distal end and defining a longitudinal axis. A chamber (5), a needle holding portion (6) extending distally from the distal end; a plunger (7) having a distal portion inserted into the syringe from the proximal end of the syringe, and located in the A proximal portion outside the syringe; a needle (8) having a proximal portion inserted into a needle channel of the needle holding portion from the distal side of the needle holding portion and a distal portion located outside the needle holding portion, The needle is hollow and in fluid communication with the chamber of the syringe; and a safety mechanism (9), which is installed at least partially around the needle holding portion, in an unactuated position of the safety mechanism, the distance of the needle The side portion is not covered by the safety mechanism, and at the same position of the safety mechanism, at least the distal end of the needle is covered by the safety mechanism to prevent accidental contact with the distal end of the needle.     根據申請專利範圍第1項所述之安全注射器(1)，其中，該安全機構(9)至少部分環繞該持針部軸向卡合。     The safety syringe (1) according to item 1 of the scope of patent application, wherein the safety mechanism (9) is axially engaged at least partially around the needle holding portion.     根據申請專利範圍第1項所述之安全注射器(1)，其中，該安全機構(9)能夠環繞該持針部自由旋轉。     The safety syringe (1) according to item 1 of the scope of patent application, wherein the safety mechanism (9) is capable of freely rotating around the needle holding portion.     根據申請專利範圍第1項至第3項中任一項所述之安全注射器(1)，其中，該安全機構(9)包括一引導鎖定構件(10)和一保護構件(11)，該引導鎖定構件至少部分環繞該持針部安裝，該保護構件至少部分環 繞該持針部設置且位於該引導鎖定構件的遠側，該保護構件能夠從該未致動位置運動至該致動位置，在該未致動位置時，該針的遠側部分不被該保護構件覆蓋，在該致動位置時，該針的至少遠側末端被該保護構件覆蓋，該引導鎖定構件和該保護構件具有用於將該保護構件可釋放地保持在該未致動位置的機構、用於引導該保護構件從該未致動位置運動至該致動位置的機構、和用於將該保護構件鎖定在該致動位置的機構。     The safety syringe (1) according to any one of claims 1 to 3, wherein the safety mechanism (9) includes a guide lock member (10) and a protection member (11), the guide A locking member is installed at least partially around the needle-holding portion, and the protective member is provided at least partially around the needle-holding portion and is located on the distal side of the guide locking member, and the protective member can be moved from the unactuated position to the actuated position, at In the non-actuated position, the distal portion of the needle is not covered by the protective member. In the actuated position, at least the distal end of the needle is covered by the protective member. The guide locking member and the protective member have a function of A mechanism for releasably maintaining the protection member in the unactuated position, a mechanism for guiding the protection member to move from the unactuated position to the actuated position, and a mechanism for locking the protection member in the actuated position Mechanism in the moving position.     根據申請專利範圍第4項所述之安全注射器(1)，其中，該引導鎖定構件包括環繞該持針部安裝的一套筒部(12)和從該套筒部的外側沿縱向向近側延伸的一引導鎖定部(13)。     The safety syringe (1) according to item 4 of the scope of patent application, wherein the guide locking member includes a sleeve portion (12) mounted around the needle holding portion and longitudinally proximally from the outside of the sleeve portion An extended guide lock (13).     根據申請專利範圍第5項所述之安全注射器(1)，其中，該保護構件包括在該引導鎖定構件的該套筒部的遠側環繞該持針部設置的一套筒部(14)、從該保護構件的該套筒部的外側沿縱向向近側延伸的一臂部(15)、和在該臂部的近端處的一手指接觸部(16)。     The safety syringe (1) according to item 5 of the scope of patent application, wherein the protection member includes a sleeve portion (14) provided on the distal side of the sleeve portion of the guide locking member and surrounding the needle holding portion, An arm portion (15) extending from the outside of the sleeve portion of the protective member to the proximal side in the longitudinal direction, and a finger contact portion (16) at the proximal end of the arm portion.     根據申請專利範圍第6項所述之安全注射器(1)，其中，用於將該保護構件可釋放地保持在該未致動位置的機構包括該引導鎖定構件的該引導鎖定部上的一彈片(17)和該保護構件的該臂部上面向該彈片(17)一側沿縱向設置的一凸塊(19)，在該未致動位置時，該引導鎖定部上的該彈片的至少一部分接收在該凸塊的遠側，以將該保護構件保持在該未致動位置，該凸塊(19)被成形為允許在向該保護 構件的該手指接觸部施加向遠側的指力時，該引導鎖定部上的該彈片越上該凸塊，以將該保護構件從該未致動位置釋放。     The safety syringe (1) according to item 6 of the scope of patent application, wherein the mechanism for releasably maintaining the protective member in the unactuated position includes an elastic piece on the guide lock portion of the guide lock member (17) and a protrusion (19) provided in the longitudinal direction on the arm portion of the protective member facing the spring piece (17) in the longitudinal direction, and in the non-actuated position, at least a part of the spring piece on the guide lock portion Received on the distal side of the bump to hold the protective member in the unactuated position, the bump (19) is shaped to allow a distal finger force to be applied to the finger contact portion of the protective member , The elastic piece on the guide lock portion climbs over the projection to release the protective member from the unactuated position.     根據申請專利範圍第7項所述之安全注射器(1)，其中，用於引導該保護構件從該未致動位置運動至該致動位置的機構包括該引導鎖定構件的該引導鎖定部上的至少一個縱向導槽(21)和該保護構件的該臂部上的至少一個對應縱向凸緣(22)，在該未致動位置時，該縱向凸緣的遠側部分位於該縱向導槽內，該縱向導槽和該縱向凸緣被成形為允許在向該保護構件的該手指接觸部施加向遠側的指力時，該縱向凸緣沿著該縱向導槽向遠側滑動，直到該手指接觸部接觸到該引導鎖定部而止擋。     The safety syringe (1) according to item 7 of the scope of patent application, wherein the mechanism for guiding the protection member to move from the unactuated position to the actuated position includes a guide lock portion of the guide lock member At least one longitudinal guide groove (21) and at least one corresponding longitudinal flange (22) on the arm portion of the protective member, in the unactuated position, a distal portion of the longitudinal flange is located within the longitudinal guide groove The longitudinal guide groove and the longitudinal flange are shaped to allow the longitudinal flange to slide distally along the longitudinal guide groove when a distal finger force is applied to the finger contact portion of the protective member, until the The finger contact portion comes into contact with the guide lock portion and stops.     根據申請專利範圍第8項所述之安全注射器(1)，其中，用於將該保護構件鎖定在該致動位置的機構包括該引導鎖定構件的該引導鎖定部上的該彈片與該保護構件的該臂部上面向該彈片(17)一側沿縱向設置的該凸塊(19)以及該保護構件的該近端處設置的至少一個導向凸起部(18)與該引導鎖定構件的該引導鎖定部上對應地設置的至少一個凹陷部(29)，在該保護構件從該未致動位置運動至該致動位置時，該彈片能夠越過該凸塊並卡在該凸塊的近側，並且該導向凸起部接收在該凹陷部中，以使該保護構件以與該縱向軸線形成斜度的方式鎖定在該致動位置。     The safety syringe (1) according to item 8 of the scope of patent application, wherein the mechanism for locking the protection member in the actuated position includes the spring piece and the protection member on the guide lock portion of the guide lock member The projection (19) provided on the arm portion facing the elastic piece (17) in the longitudinal direction and at least one guide projection (18) provided at the proximal end of the protection member and the guide locking member At least one recessed portion (29) correspondingly provided on the guide locking portion, when the protective member moves from the unactuated position to the actuated position, the elastic piece can pass over the convex block and be caught on the proximal side of the convex block And the guide protrusion is received in the depression so that the protective member is locked in the actuated position in such a manner as to form an inclination with the longitudinal axis.     根據申請專利範圍第4項所述之安全注射器(1)，其中，該引導 鎖定構件的一套筒部內側設有一突出部(24)或一凹陷部，該突出部或該凹陷部接合該持針部外側上形成的另一凹陷部(25)或另一突出部，以將該引導鎖定構件的該套筒部軸向卡合在該針筒上。     The safety syringe (1) according to item 4 of the scope of patent application, wherein a sleeve (24) or a recessed portion is provided inside a sleeve portion of the guide locking member, and the projection or the recessed portion engages the holding portion. Another recessed portion (25) or another protruding portion formed on the outer side of the needle portion to axially engage the sleeve portion of the guide locking member on the syringe.     根據申請專利範圍第1項至第3項中任一項所述之安全注射器(1)，還包括一針罩(26)，該針罩用於罩住該針並被成形為與該安全機構的形狀相適配。     The safety syringe (1) according to any one of claims 1 to 3 of the scope of patent application, further comprising a needle cover (26) for covering the needle and being shaped to communicate with the safety mechanism Fit the shape.     根據申請專利範圍第11項所述之安全注射器(1)，其中，該針罩(26)的內表面設有至少一對肋(31)，該至少一對肋(31)與一引導鎖定構件的一引導鎖定部(13)上的至少一個凸緣(30)滑動接合。     The safety syringe (1) according to item 11 of the scope of patent application, wherein the inner surface of the needle shield (26) is provided with at least a pair of ribs (31), the at least a pair of ribs (31) and a guide locking member At least one flange (30) on a guide locking portion (13) is slidably engaged.     根據申請專利範圍第12項所述之安全注射器(1)，其中，該針罩(26)的內表面還設有另一對肋(32)，該另一對肋(32)與該引導鎖定構件的一套筒部(12)上的一楔形凸塊(33)擠壓接合。     The safety syringe (1) according to item 12 of the scope of patent application, wherein the inner surface of the needle shield (26) is further provided with another pair of ribs (32), and the other pair of ribs (32) is locked with the guide A wedge-shaped protrusion (33) on a sleeve portion (12) of the component is press-fitted.     根據申請專利範圍第13項所述之安全注射器(1)，其中，該針罩(26)的外表面設有凸出的一防滑條(34)。     According to the safety syringe (1) according to item 13 of the scope of the patent application, the outer surface of the needle shield (26) is provided with a protruding non-slip strip (34).     根據申請專利範圍第6項所述之安全注射器(1)，其中，該保護構件的該套筒部形成為帶有一頂部開孔(27)的帽狀，該頂部開孔的孔徑小於該保護構件的一套筒部主體(28)的內徑。     The safety syringe (1) according to item 6 of the scope of patent application, wherein the sleeve portion of the protection member is formed in a cap shape with a top opening (27), and the diameter of the top opening is smaller than the protection member The inner diameter of a sleeve part body (28).     根據申請專利範圍第6項所述之安全注射器(1)，其中，該手指接觸部被成形為從該保護構件的該臂部的該近端橫向向外側延伸的一板狀部。     The safety syringe (1) according to item 6 of the scope of patent application, wherein the finger contact portion is formed as a plate-like portion extending laterally outward from the proximal end of the arm portion of the protective member.     一種用於安全注射器(1)的安全機構(9)，該安全機構至少部分環繞該安全注射器的一持針部安裝，在該安全機構的一未致動位置，一針的遠側部分不被該安全機構覆蓋，在該安全機構的一致動位置，該針的至少遠側末端被該安全機構覆蓋，以防止與該針的遠側末端意外接觸。     A safety mechanism (9) for a safety syringe (1), the safety mechanism is installed at least partially around a needle holding portion of the safety syringe, and in an unactuated position of the safety mechanism, a distal portion of a needle is not The safety mechanism covers, and at the same position of the safety mechanism, at least the distal end of the needle is covered by the safety mechanism to prevent accidental contact with the distal end of the needle.     根據申請專利範圍第17項所述之安全機構(9)，其中，該安全機構(9)至少部分環繞該持針部軸向卡合。     According to the security mechanism (9) according to item 17 of the scope of the patent application, wherein the security mechanism (9) is at least partially axially engaged with the needle holding portion.     根據申請專利範圍第17項所述之安全機構(9)，其中，該安全機構(9)能夠環繞該持針部自由旋轉。     According to the safety mechanism (9) according to item 17 of the scope of patent application, wherein the safety mechanism (9) is capable of freely rotating around the needle holding portion.     根據申請專利範圍第17項至第19項中任一項所述之安全機構(9)，其中，該安全機構(9)包括一引導鎖定構件(10)和一保護構件(11)，該引導鎖定構件至少部分環繞該持針部安裝，該保護構件至少部分環繞該持針部設置且位於該引導鎖定構件的遠側，該保護構件能夠從該未致動位置運動至該致動位置，在該未致動位置時，該針的遠側部分不被該保護構件覆蓋，在該致動位置時，該針的至少遠側末端被該保護構件覆蓋，該引導鎖定構件和該保護構件具有用於將該保護構件可釋放地保持在該未致動位置的機構、用於引導該保護構 件從該未致動位置運動至該致動位置的機構、和用於將該保護構件鎖定在該致動位置的機構。     The security mechanism (9) according to any one of claims 17 to 19 in the scope of patent application, wherein the security mechanism (9) includes a guide locking member (10) and a protection member (11), the guide A locking member is installed at least partially around the needle-holding portion, and the protective member is provided at least partially around the needle-holding portion and is located on the distal side of the guide locking member. In the non-actuated position, the distal portion of the needle is not covered by the protective member. In the actuated position, at least the distal end of the needle is covered by the protective member. The guide locking member and the protective member have a function of A mechanism for releasably maintaining the protection member in the unactuated position, a mechanism for guiding the protection member to move from the unactuated position to the actuated position, and a mechanism for locking the protection member in the actuated position Mechanism in the moving position.     根據申請專利範圍第20項所述之安全機構(9)，其中，該引導鎖定構件包括環繞該持針部安裝的一套筒部(12)和從該套筒部的外側沿縱向向近側延伸的一引導鎖定部(13)。     The safety mechanism (9) according to item 20 of the scope of patent application, wherein the guide locking member includes a sleeve portion (12) mounted around the needle holding portion and longitudinally proximally from the outside of the sleeve portion An extended guide lock (13).     根據申請專利範圍第21項所述之安全機構(9)，其中，該保護構件包括在該引導鎖定構件的該套筒部的遠側環繞該持針部設置的一套筒部(14)、從該保護構件的該套筒部的外側沿縱向向近側延伸的一臂部(15)、和在該臂部的近端處的一手指接觸部(16)。     The safety mechanism (9) according to item 21 of the scope of patent application, wherein the protection member includes a sleeve portion (14) provided on the distal side of the sleeve portion of the guide locking member and surrounding the needle holding portion, An arm portion (15) extending from the outside of the sleeve portion of the protective member to the proximal side in the longitudinal direction, and a finger contact portion (16) at the proximal end of the arm portion.     根據申請專利範圍第22項所述之安全機構(9)，其中，用於將該保護構件可釋放地保持在該未致動位置的機構包括該引導鎖定構件的該引導鎖定部上的一彈片(17)和該保護構件的該臂部上面向該彈片(17)一側沿縱向設置的一凸塊(19)，在該未致動位置時，該引導鎖定部上的該彈片的至少一部分接收在該凸塊的遠側，以將該保護構件保持在該未致動位置，該凸塊(19)被成形為允許在向該保護構件的該手指接觸部施加向遠側的指力時，該引導鎖定部上的該彈片越上該凸塊，以將該保護構件從該未致動位置釋放。     The safety mechanism (9) according to item 22 of the scope of patent application, wherein the mechanism for releasably maintaining the protection member in the non-actuated position includes an elastic piece on the guide lock portion of the guide lock member (17) and a protrusion (19) provided in the longitudinal direction on the arm portion of the protective member facing the spring piece (17) in the longitudinal direction, and in the non-actuated position, at least a part of the spring piece on the guide lock portion Received on the distal side of the bump to hold the protective member in the unactuated position, the bump (19) is shaped to allow a distal finger force to be applied to the finger contact portion of the protective member , The elastic piece on the guide lock portion climbs over the projection to release the protective member from the unactuated position.     根據申請專利範圍第23項所述之安全機構(9)，其中，用於引導該保護構件從該未致動位置運動至該致動位置的機構包括該引導鎖定構件的該引導鎖定部上的至少一個縱向導槽(21)和該保護構件 的該臂部上的至少一個對應縱向凸緣(22)，在該未致動位置時，該縱向凸緣的遠側部分位於該縱向導槽內，該縱向導槽和該縱向凸緣被成形為允許在向該保護構件的該手指接觸部施加向遠側的指力時，該縱向凸緣沿著該縱向導槽向遠側滑動，直到該手指接觸部接觸到該引導鎖定部而止擋。     The safety mechanism (9) according to item 23 of the scope of patent application, wherein the mechanism for guiding the protective member to move from the unactuated position to the actuated position includes a guide lock portion of the guide lock member At least one longitudinal guide groove (21) and at least one corresponding longitudinal flange (22) on the arm portion of the protective member, in the unactuated position, a distal portion of the longitudinal flange is located within the longitudinal guide groove The longitudinal guide groove and the longitudinal flange are shaped to allow the longitudinal flange to slide distally along the longitudinal guide groove when a distal finger force is applied to the finger contact portion of the protective member, until the The finger contact portion comes into contact with the guide lock portion and stops.     根據申請專利範圍第24項所述之安全機構(9)，其中，用於將該保護構件鎖定在該致動位置的機構包括該引導鎖定構件的該引導鎖定部上的該彈片與該保護構件的該臂部上面向該彈片(17)一側沿縱向設置的該凸塊(19)以及該保護構件的近端處設置的至少一個導向凸起部(18)與該引導鎖定構件的該引導鎖定部上對應地設置的至少一個凹陷部(29)，在該保護構件從該未致動位置運動至該致動位置時，該彈片能夠越過該凸塊並卡在該凸塊的近側，並且該導向凸起部接收在該凹陷部中，以使該保護構件以與一縱向軸線形成斜度的方式鎖定在該致動位置。     The safety mechanism (9) according to item 24 of the scope of patent application, wherein the mechanism for locking the protection member in the actuated position includes the spring piece and the protection member on the guide lock portion of the guide lock member The protrusion (19) provided on the side of the arm portion facing the elastic piece (17) in the longitudinal direction and at least one guide protrusion (18) provided at the proximal end of the protection member and the guide of the guide lock member At least one recessed portion (29) correspondingly provided on the locking portion, when the protection member moves from the unactuated position to the actuated position, the elastic piece can pass over the convex block and be caught on the proximal side of the convex block, And the guide protrusion is received in the depression so that the protection member is locked in the actuated position in such a manner as to form an inclination with a longitudinal axis.     根據申請專利範圍第20項所述之安全機構(9)，其中，該引導鎖定構件的一套筒部內側設有一突出部(24)或一凹陷部，該突出部或該凹陷部接合該持針部外側上形成的另一凹陷部(25)或另一突出部，以將該引導鎖定構件的該套筒部軸向卡合在一針筒上。     The security mechanism (9) according to item 20 of the scope of patent application, wherein a sleeve (24) or a recessed portion is provided inside a sleeve portion of the guide locking member, and the projection or the recessed portion engages the holding portion. Another recessed portion (25) or another protruding portion formed on the outer side of the needle portion to axially engage the sleeve portion of the guide locking member on a syringe.     根據申請專利範圍第22項所述之安全機構(9)，其中，該保護構件的該套筒部形成為帶有一頂部開孔(27)的一帽狀，該頂部開孔 的孔徑小於該保護構件的一套筒部主體(28)的內徑。     The safety mechanism (9) according to item 22 of the scope of patent application, wherein the sleeve portion of the protection member is formed into a cap shape with a top opening (27), and the aperture of the top opening is smaller than the protection The inner diameter of a sleeve part body (28) of the component.     根據申請專利範圍第22項所述之安全機構(9)，其中，該手指接觸部被成形為從該保護構件的該臂部的近端橫向向外側延伸的一板狀部。     The security mechanism (9) according to item 22 of the scope of patent application, wherein the finger contact portion is formed as a plate-like portion extending laterally outward from a proximal end of the arm portion of the protective member.    
TW107109491A 2017-03-24 2018-03-20 Safety injector and safety mechanism usable therewith capable of calibrating a needle for only one time in installing the injector TW201834708A (en)

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USD894381S1 (en) * 2019-03-29 2020-08-25 Retractable Technologies, Inc. Syringe barrel
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US8162882B2 (en) * 2010-06-23 2012-04-24 Sta-Med, Llc Automatic-locking safety needle covers and methods of use and manufacture
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