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WO2023217043A1 - Bague d'arrêt, dispositif d'injection pré-remplissable, ensemble associé, couvercle de protection, procédé d'installation associé, et ensemble associé - Google Patents

Bague d'arrêt, dispositif d'injection pré-remplissable, ensemble associé, couvercle de protection, procédé d'installation associé, et ensemble associé Download PDF

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Publication number
WO2023217043A1
WO2023217043A1 PCT/CN2023/092560 CN2023092560W WO2023217043A1 WO 2023217043 A1 WO2023217043 A1 WO 2023217043A1 CN 2023092560 W CN2023092560 W CN 2023092560W WO 2023217043 A1 WO2023217043 A1 WO 2023217043A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective cover
needle
syringe
injection
ring
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2023/092560
Other languages
English (en)
Chinese (zh)
Inventor
郭融
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Xinyao Paike Medical Technology Co Ltd
Original Assignee
Shanghai Xinyao Paike Medical Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Xinyao Paike Medical Technology Co Ltd filed Critical Shanghai Xinyao Paike Medical Technology Co Ltd
Publication of WO2023217043A1 publication Critical patent/WO2023217043A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • A61M5/3257—Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means
    • 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
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps
    • 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
    • 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

Definitions

  • the invention belongs to the technical field of medical consumables, and in particular relates to a stop ring, a prefilled syringe and its components, a protective cover and its installation method and components.
  • syringes for syringes are basic care consumables among medical consumables. They are generally composed of syringes, injection needles, and needle covers. There are many kinds of syringes. , among which pre-filled syringes are a kind of medical consumables that are pre-filled with designated drugs and distributed to medical staff for direct injection. In the context of the new coronavirus epidemic, they are widely used in vaccination and have a very broad market. Application prospects.
  • the Chinese invention patent with the publication number CN111372634A and the publication date of 2020-07-03 discloses a device for transplantation.
  • the device provides an improved injection device that does not require separate removal of the needle guard from the needle.
  • the object of the present invention is to provide a stop ring, a pre-filled syringe and its components, a protective cover and its installation method and components.
  • the present invention uses a mounting ring and is provided on the mounting ring and used to engage the syringe cap.
  • the elastic hook has the technical effect of being installed in conjunction with the syringe and used to engage the protective cover on the syringe.
  • a stop ring for connecting the injection syringe and its needle protective sleeve which includes a mounting ring for socketing the injection syringe or its extension part, and is arranged on the On the mounting ring, and used to engage the elastic hook of the needle protective sleeve, the elastic hook includes a radial plate and an axial plate, the radial plate is arranged on the mounting ring, and the axial plate is arranged on the Radial plate.
  • a further preferred technical solution is that the mounting ring is provided with a stopper for engaging the engaging element on the syringe installation site.
  • stopper is connected to the hollow part inside the mounting ring.
  • a prefilled syringe including the stop ring, including an injection syringe barrel, a needle mounting piece, an injection needle and a needle protective cover;
  • the needle mounting member is disposed at the distal end of the injection syringe.
  • the needle mounting member has a through hole that communicates with the inside of the injection syringe.
  • the injection needle is installed on the needle by inserting into the through hole.
  • the needle protective sleeve is sleeved on the needle mounting piece and completely covers the injection needle, and the injection syringe, the needle mounting piece, the injection needle and the needle protective sleeve have a common axis;
  • the mounting ring is installed on the needle mounting piece in a socket manner, and after installation, the hook direction of the elastic hook is toward the proximal end.
  • a further preferred technical solution is that the needle mounting piece is provided with a stop block; when the mounting ring is sleeved on the needle mounting piece, the stop block is embedded in the stop piece.
  • a further preferred technical solution is that the needle mounting member is further provided with an inclined block engaging the distal side of the mounting ring.
  • a further preferred technical solution is that the distal end of the inclined block has an installation inclined surface.
  • a protective cover including the pre-filled syringe includes a protective cover provided with a sliding port to block the injection needle, and at the same time, the elastic hook extends into the sliding port to fix the protective cover.
  • a further preferred technical solution is that the protective cover is also provided with an elastic plate, the elastic plate is cantilevered on the inner surface of the sliding port, and the proximal end has a tendency to retract inward along the radial direction of the protective cover.
  • proximal end of the elastic plate has a proximal stop surface, which is used to push up the elastic hook when the protective cover is closed, thereby locking the protective cover.
  • a further preferred technical solution is that the inner side of the elastic plate is provided with a distal stop surface for pushing up the elastic hook when the protective cover is opened, thereby locking the protective cover.
  • a further preferred technical solution is that the free end of the axial plate expands radially outward along the mounting ring, and when the distal stop surface is pushed up, the free end is pressed radially inward or along the protective cover. Pull the elastic plate outward to make the opening stop surface of the axial plate and the elastic hook disengage from the lifting state.
  • a further preferred technical solution is to further include a guide slope provided at the proximal end of the protective cover for sliding the elastic hook into the sliding opening.
  • a method for installing a protective cover on a prefilled syringe including the following steps:
  • An assembly of a prefilled syringe including a push rod and a piston; wherein: the push rod is provided on the piston; the piston is installed in the injection syringe, and when the push rod is pushed toward the distal direction , used to push the medicinal liquid through the injection needle.
  • An assembly of a protective cover pre-filled syringe including a push rod and a piston; wherein: the push rod is provided on the piston; the piston is installed in the injection syringe and pushes the push rod toward the distal direction. The rod is used to push the medicinal liquid through the injection needle.
  • the annular stop ring structure is directly connected to the installation part of the syringe, adding an engaging structure to the syringe to limit the cover part, and is easy to install, which is conducive to industrial production;
  • an elastic hook is provided to hook with the side of the sliding port to fix the protective cover.
  • the fixing effect is good and the protective cover is not easy to disengage from the engagement state;
  • an elastic plate is provided.
  • the elastic plate has a stop surface that snaps together with the elastic hook to fix the protective cover in an open state to facilitate the nurse to inject;
  • the nurse can use two fingers to pinch the elastic plate to disengage the stop surface and the elastic hook, so that the protective cover is ejected towards the needle to close.
  • the pinch-to-close method is also suitable for nurses with shorter fingers. One-handed operation is possible.
  • Figure 1 is an exploded schematic diagram of the needle barrel, stop ring, protective cover, and needle protective sleeve in the present invention.
  • Figure 2 is a schematic structural diagram of an injection needle covered with a needle protective sleeve according to the present invention, and a protective cover and an elastic hook are installed on the injection syringe.
  • Figure 3 is a structural schematic diagram of the invention in which the needle protective sheath covers the injection needle and the injection syringe is equipped with an elastic hook.
  • Figure 4 is a schematic structural diagram of an elastic hook installed on the injection syringe of the present invention.
  • Figure 5 is a schematic structural diagram of the injection syringe in the present invention.
  • Figure 6 is a schematic structural diagram of the injection syringe equipped with a protective cover and an elastic hook in the present invention.
  • FIG. 7 is a schematic cross-sectional structural diagram along line A-A in FIG. 6 .
  • FIG. 8 is an enlarged structural diagram of FIG. 7 .
  • FIG. 9 is an enlarged structural schematic diagram of FIG. 8 .
  • Figure 10 is a structural schematic diagram of the position of the stop block and the inclined block on the needle mounting member in the present invention.
  • Figure 11 is a schematic structural diagram of the protective cover in the present invention.
  • Figure 12 is a schematic structural diagram of the protective cover in another direction relative to Figure 11 in the present invention.
  • Figure 13 is a schematic structural diagram of the elastic hook in the present invention.
  • Figure 14 is a schematic structural diagram of the elastic hook in another direction relative to Figure 13 in the present invention.
  • Figure 15 is a schematic structural diagram of the elastic plate in the present invention.
  • each number is as follows: injection syringe 11, needle mounting piece 12, injection needle 13, needle protective cover 14, protective cover 101, sliding port 102, elastic plate 103, guide slope 105, mounting ring 201 , elastic hook 202, proximal stop surface 103a, distal stop surface 103b, stopper 201a, radial plate 202a, axial plate 202b, through hole 12a, slope block 12b, installation slope 12c, stop block 12d.
  • Distal end refers to the end far away from the drug injection port of the injection syringe.
  • Proximal end refers to the end facing the drug injection port of the injection syringe.
  • Axis refers to an object with a circular cross-section, the vertical line through the center of the circle.
  • Open refers to the state of exposing the syringe needle or syringe needle and protective cover.
  • Setting refers to any method used to arrange and combine two parts together through bonding, snapping, welding, screwing, placing, etc.
  • Pushing up means that component one exerts force on component two, causing the component two to move or deform in the opposite direction to the position of component one.
  • a stop ring for connecting an injection syringe and its needle protective sleeve includes a mounting ring 201 for sheathing the injection syringe or its extension part, and is disposed on On the mounting ring 201, and used to engage the elastic hook 202 of the needle protective sleeve.
  • the elastic hook 202 includes a radial plate 202a and an axial plate 202b.
  • the radial plate 202a is provided on the mounting ring 201.
  • the axial plate 202b is provided on the radial plate 202a.
  • the inner ring diameter of the mounting ring 201 is generally larger than the outer diameter of the syringe for mounting. However, it should be noted that this does not mean that the minimum ring inner diameter of the mounting ring 201 is larger than the syringe for mounting.
  • the installation ring 201 will deform and cross the maximum outer diameter of the installation part to achieve the effect of snap-in installation.
  • the hook direction of the elastic hook 202 can be toward the proximal end or the distal end. It is generally set toward the proximal end to prevent the cover part provided on the syringe from disengaging from the syringe barrel part.
  • the "elastic" feature of the elastic hook 202 is to facilitate installation. The hook first shrinks inward and then expands outward, thereby hooking on the predetermined installation opening of the mask part.
  • the installation ring 201 is provided with a stopper 201a for engaging the engaging part on the syringe installation site.
  • the engaging piece on the syringe installation part can be engaged to prevent the installation ring 201 from rotating after installation.
  • the stopper 201a may be a groove or a protruding block.
  • the engaging member may also be a protruding block or a groove.
  • the engaging piece is set as a protruding block and is embedded in the stopper 201a during installation; or when the stopper 201a is set as a protruding block, the engaging piece is set as a slot and is stopped by the stopper during installation. Part 201a is embedded.
  • stopper 201a can be provided on any side of the mounting ring 201, such as the proximal end surface, the distal end surface, the outer ring surface, etc.
  • stopper 201a and the engaging part are both protruding blocks, and the engaging parts are provided in two, and they are engaged at the far and near sides of the stopper 201a. Both ends, but this will create a gap between the mounting ring 201 and the syringe mounting site, which is not conducive to use.
  • the radial plate 202a and the axial plate 202b together form the elastic hook 202, where the axial plate 202b is the main elastic part of the elastic hook 202, and the two ends of the radial plate 202a are installed respectively.
  • the axial plate 202b and the mounting ring 201 are used to form a gap between the axial plate 202b and the mounting ring 201 to facilitate hooking the syringe cap.
  • the engaging piece on the syringe installation site will be arranged to fit the installation site without leaving a gap between the syringe and the installation site, that is, it will not be suspended in the air.
  • At least one opening of the stopper 201a is directly connected to the installation part of the syringe.
  • the stopper 201a is connected to the hollow part of the installation ring 201. In this way, when the installation ring 201 is installed, the stopper 201a directly communicates with the opening of the hollow part in the installation ring 201 and the installation part of the syringe.
  • a prefilled syringe includes an injection syringe 11, a needle mounting piece 12, an injection needle 13 and a needle protective cover 14; wherein:
  • the needle mounting member 12 is disposed at the distal end of the injection syringe 11.
  • the needle mounting member 12 has a through hole 12a, which communicates with the inside of the injection syringe 11.
  • the injection needle 13 is inserted into the through hole 12a.
  • the needle protective cover 14 is sleeved on the needle mounting part 12 and completely covers the injection needle 13, the injection syringe 11, the needle mounting part 12,
  • the injection needle 13 and the needle protective cover 14 have a common axis;
  • the mounting ring 201 is installed on the needle mounting member 12 through a socket. After installation, the hook direction of the elastic hook 202 faces the proximal end.
  • the injection syringe 11, the needle mounting member 12, the injection needle 13 and the needle protective cover 14 are all necessary components of the syringe in the prior art to realize the filling and injection functions of medicines.
  • the needle protective sheath 14 uses the existing pre-potted needle sheath materials and shapes that have been standardized and produced, instead of non-standard special-shaped protective caps. The advantages are:
  • the needle mounting part 12 is provided with a stop block 12d; when the mounting ring 201 is sleeved on the needle mounting part 12, the stop block 12d is embedded in the stopper 201a.
  • the stop block 12d is the "engaging part on the syringe installation part" mentioned above.
  • the needle mounting member 12 is further provided with a slope block 12b that engages with the distal side of the mounting ring 201.
  • the inclined block 12b is the "maximum outer diameter of the syringe used for installation" mentioned above.
  • the distal end of the inclined surface block 12b has an installation inclined surface 12c.
  • the installation ring 201 expands and deforms along the installation slope 12c, thereby crossing the slope block 12b, and the distal end surface of the installation ring 201 fits the proximal end surface of the slope block 12b, thereby achieving Limiting effect on the mounting ring 201.
  • a protective cover prefilled syringe includes a protective cover 101 with a sliding port 102 disposed thereon to block the injection needle 13, and at the same time, the elastic hook 202 extends into the sliding port 102 to fix the protective cover 101.
  • the installation method of the elastic hook 202 and the protective cover 101 is:
  • the elastic hook 202 is installed on the needle mounting member 12, and the bending direction of the hook is toward the proximal end of the injection syringe 11;
  • the elastic hook 202 slides into the sliding port 102 during the socketing process, and hooks the proximal side of the sliding port 102, thereby achieving a blocking effect on the sliding of the protective cover 101 in the distal direction. .
  • the above components are handed over to the downstream manufacturer for filling of drugs.
  • the drugs are filled from the drug injection port of the injection syringe 11, and then a push rod is installed on the injection syringe 11 through the drug injection port. and injection plunger to complete the pre-filling of the syringe.
  • the Chinese utility model with the announcement number CN214911888U and the announcement date of 2021-11-30 discloses a syringe needle protection device and a safety syringe, including a protective outer jacket, an installed inner sleeve, and a spring. This inner outer sleeve is connected This way blocks the view inside the syringe and affects the light inspection process.
  • the protective cover unit 2 only covers the needle installation tube 12 and the syringe 11 when the syringe is not in use. Part of the distal end will not affect the light inspection process.
  • the method of using the protective cover pre-filled syringe is:
  • the protective cover 101 needs to achieve a fixing effect after closing. Furthermore, the protective cover 101 is also provided with an elastic plate 103.
  • the elastic plate 103 is cantilevered on the inner surface of the sliding port 102, with the proximal end It has a tendency to retract in the radial direction of the protective cover 101 .
  • the functions and implementation methods of the elastic plate 103 are as follows:
  • the elastic hook 202 pushes up the elastic plate 103 outward in the radial direction of the protective cover 101, so that the elastic plate 103 accumulates elastic potential energy and loosens the protective cover.
  • the elastic potential energy of the elastic plate 103 is released, driving the protective cover 101 to eject axially along the distal direction of the injection syringe 11, achieving the automatic closing effect;
  • the proximal end of the elastic plate 103 has a proximal stop surface 103a, which is used to push up the elastic hook when the protective cover 101 is closed. 202, thereby locking the protective cover 101.
  • a distal stop surface 103b is provided on the inside of the elastic plate 103 for opening the protective cover 101.
  • the elastic hook 202 is pushed up, the protective cover 101 is locked.
  • the elastic hook 202 pushes up the elastic plate 103 radially outward along the protective cover 101, according to the interaction principle of forces, the elastic plate 103 also pushes up the elastic plate 103 radially inward along the protective cover 101.
  • the elastic hook 202 causes the elastic hook 202 to shrink. When it crosses the distal stop surface 103b, the elastic hook 202 rebounds back to its original shape, thus hooking the distal stop surface 103b, so that the The protective cover 101 cannot slide in the distal direction even under the push of the elastic plate 103 .
  • the protective cover 101 After the injection is completed, the protective cover 101 needs to be closed. In order to make the closing process smoother, further, the free end of the axial plate 202b expands radially outward along the mounting ring 201 to push up the distal stop.
  • the opening stop surface 202d of the axial plate 202b is separated from the elastic hook 202. state.
  • the proximal end expands to a greater extent than the distal end.
  • the inner surface of the elastic plate 103 tilts outward from the distal end to the proximal end.
  • the inclination mode of the axial plate 202b is consistent with the above.
  • the inner side of the elastic plate 103 is inclined in a consistent manner, so that when the elastic plate 103 is pressed radially inward along the protective cover 101, because the length of the elastic plate 103 is longer, the length of the axial plate 202b is longer. Short, when squeezed for the same distance, the axial plate 202b shrinks more obviously. Therefore, when squeezed to a certain extent, the opening stop surface 202d of the axial plate 202b and the distal stop surface 103b disengaged, and the protective cover 101 is closed under the pushing action of the elastic plate 103 .
  • the pinch-to-close method can close the protective cover 101.
  • the nurse can exert force on the palm of the hand, and there is no need to move the thumb and index finger away from the palm.
  • it can also be operated with one hand, which is an ingenious design.
  • pinching inward is more convenient than turning outward. There is no need to find an angle, there is no need to insert nails into the sliding opening 102, and the operation does not even need to be observed by a nurse with naked eyes.
  • a guide slope 105 provided at the proximal end of the protective cover 101 is further included for sliding the elastic hook 202 into the sliding Mouth 102 hits.
  • the inclination angle of the guide slope 105 is similar to the inclination angle of the elastic hook 202 .
  • a method for installing a protective cover on a prefilled syringe including the following steps:
  • the above installation method can be completed by manual socket installation, or a mechanical arm for installation can be installed behind the syringe production line to be responsible for socketing, without upgrading or modifying the syringe production line.
  • This installation method is best used in the actual production process. Very economical and practical.
  • a prefilled syringe assembly including a push rod and a piston; wherein: the push rod is provided on the piston; the piston is installed in the injection syringe 11 and pushes the push rod toward the distal direction When, it is used to push the medicinal liquid through the injection needle 13.
  • the key point is that the push rod and the piston are detachably connected together, so that the piston can be easily installed in the injection syringe 11 in a mechanical and automated manner.
  • the piston assembly method and the drug potting method are as follows:
  • the "grabbing" step generally uses a programmed mechanical arm.
  • the core of the program design is to keep the injection syringe 11 in a vertical state when it reaches the position to be potted, so that The liquid level after filling the medicine is perpendicular to the axial direction of the injection syringe 11 so that no air or less air remains after packaging but does not affect the injection process.
  • the "designated drug” refers to a drug that is filled by itself according to customer needs. For example, if a manufacturer fills the new coronavirus vaccine, the designated drug is an inactivated new coronavirus.
  • Sleeve plugging insert the sleeve with the piston into the injection syringe 11, leaving a gap between the outer ring surface of the sleeve and the inner ring surface of the injection syringe 11, and then use the sleeve
  • the barrel push rod pushes the piston into the injection syringe 11 along the inner annular surface of the sleeve;
  • the piston is a device commonly used in syringes for pushing medicine.
  • the piston is generally made of medical rubber. It is in a compressed state in the sleeve and will expand to fit after leaving the sleeve.
  • the sleeve is an elongated steel tube, and the injection syringe 11 is inserted from the crimp, and then the piston is sent to a designated position using a sleeve push rod installed in the sleeve.
  • the designated position means that after the piston leaves the sleeve, it can be just above the liquid level of the medicinal liquid, with no air or less air left in between but does not affect the injection process.
  • a mounting slot is left at the proximal end of the piston for mounting the push rod, and a mechanical arm is used to rotate the push rod and insert it into the mounting slot.
  • the installation method of the syringe is as follows:
  • the needle protective cover 14 is first installed in the protective cover 101, which facilitates the automated assembly of syringe components, simplifies the production line process, reduces the cost of the component installation process, and further improves market competitiveness.
  • a protective cover pre-filled syringe assembly includes a push rod and a piston; wherein: the push rod is provided on the piston; The piston is installed in the injection syringe 11 and used to push the medical liquid through the injection needle 13 when the push rod is pushed in the distal direction.

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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

La présente invention concerne une bague d'arrêt, un dispositif d'injection pré-remplissable, un ensemble associé, un couvercle de protection, un procédé d'installation associé et un ensemble associé. La bague d'arrêt comprend une bague de montage (201), qui est utilisée pour le manchonnage d'une seringue d'injection ou d'un composant d'extension de celle-ci, ainsi que des crochets flexibles (202) qui sont agencés sur la bague de montage (201) et utilisés pour venir en prise avec un manchon de protection d'aiguille ; les crochets flexibles (202) comprennent des pièces radiales (202a) et des pièces axiales (202b), les pièces radiales (202a) étant agencées sur la bague de montage (201), et les pièces axiales (202b) étant agencées sur les pièces radiales (202a). Au moyen de la bague de montage (201) et des crochets flexibles (202) agencés sur la bague de montage (201), on obtient les effets techniques d'une installation appariée avec une seringue, et de l'utilisation de ceux-ci pour la mise en prise du couvercle de protection sur l'aiguille.
PCT/CN2023/092560 2022-05-07 2023-05-06 Bague d'arrêt, dispositif d'injection pré-remplissable, ensemble associé, couvercle de protection, procédé d'installation associé, et ensemble associé Ceased WO2023217043A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210492987.8A CN114796727B (zh) 2022-05-07 2022-05-07 一种预灌封注射器及其安装方法、组件
CN202210492987.8 2022-05-07

Publications (1)

Publication Number Publication Date
WO2023217043A1 true WO2023217043A1 (fr) 2023-11-16

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PCT/CN2023/092560 Ceased WO2023217043A1 (fr) 2022-05-07 2023-05-06 Bague d'arrêt, dispositif d'injection pré-remplissable, ensemble associé, couvercle de protection, procédé d'installation associé, et ensemble associé

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WO (1) WO2023217043A1 (fr)

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CN114733007B (zh) * 2022-05-07 2025-06-13 上海新耀湃科医疗科技股份有限公司 针头防护式预灌封注射器，组件，组件的安装方法
CN114796728A (zh) * 2022-05-07 2022-07-29 上海新耀湃科医疗科技股份有限公司 一种针头保护式预灌封针筒及其组件，组件的安装方法、使用方法
CN114796727B (zh) * 2022-05-07 2024-05-21 上海新耀湃科医疗科技股份有限公司 一种预灌封注射器及其安装方法、组件
CN117180560B (zh) * 2023-08-25 2024-06-14 上海新耀湃科医疗科技股份有限公司 一种用于预灌封注射器的防护罩
CN222533827U (zh) * 2024-03-05 2025-02-28 山东威高普瑞医药包装有限公司 一种注射用安全保护装置、注射器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030088215A1 (en) * 2001-03-14 2003-05-08 Ferguson F Mark Safety shield for medical needles
US20120022463A1 (en) * 2010-07-26 2012-01-26 Wu Kuo Cheng Safety sheath for hypodermic syringe needle
CN114423478A (zh) * 2019-09-17 2022-04-29 碧迪股份有限公司 被动式安全装置、包括该安全装置的注射装置和用来制造所述注射装置的方法
CN114733007A (zh) * 2022-05-07 2022-07-12 上海新耀湃科医疗科技股份有限公司 针头防护式预灌封注射器，组件，组件的安装方法，组件的使用方法
CN114796727A (zh) * 2022-05-07 2022-07-29 上海新耀湃科医疗科技股份有限公司 止位环，预灌封注射器及其组件，防护罩及其安装方法、组件
CN114796728A (zh) * 2022-05-07 2022-07-29 上海新耀湃科医疗科技股份有限公司 一种针头保护式预灌封针筒及其组件，组件的安装方法、使用方法
CN218636426U (zh) * 2022-05-07 2023-03-17 上海新耀湃科医疗科技股份有限公司 一种针头保护式预灌封针筒及其组件
CN218636425U (zh) * 2022-05-07 2023-03-17 上海新耀湃科医疗科技股份有限公司 针头防护式预灌封注射器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4737144A (en) * 1987-03-09 1988-04-12 Choksi Pradip V Syringe with selectively exposed and enveloped needle
US5338310A (en) * 1992-02-06 1994-08-16 Becton, Dickinson And Company Needle device having safety indication features
US6692470B2 (en) * 2000-01-21 2004-02-17 Medi-Hut Co., Inc. Single-use hypodermic syringe having a removable needle assembly
TWM255030U (en) * 2004-04-01 2005-01-11 Chien-Hsum Cheng Safety syringe
CN2920270Y (zh) * 2006-06-08 2007-07-11 黄秋月 胰岛素注射器结构

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030088215A1 (en) * 2001-03-14 2003-05-08 Ferguson F Mark Safety shield for medical needles
US20120022463A1 (en) * 2010-07-26 2012-01-26 Wu Kuo Cheng Safety sheath for hypodermic syringe needle
CN114423478A (zh) * 2019-09-17 2022-04-29 碧迪股份有限公司 被动式安全装置、包括该安全装置的注射装置和用来制造所述注射装置的方法
CN114733007A (zh) * 2022-05-07 2022-07-12 上海新耀湃科医疗科技股份有限公司 针头防护式预灌封注射器，组件，组件的安装方法，组件的使用方法
CN114796727A (zh) * 2022-05-07 2022-07-29 上海新耀湃科医疗科技股份有限公司 止位环，预灌封注射器及其组件，防护罩及其安装方法、组件
CN114796728A (zh) * 2022-05-07 2022-07-29 上海新耀湃科医疗科技股份有限公司 一种针头保护式预灌封针筒及其组件，组件的安装方法、使用方法
CN218636426U (zh) * 2022-05-07 2023-03-17 上海新耀湃科医疗科技股份有限公司 一种针头保护式预灌封针筒及其组件
CN218636425U (zh) * 2022-05-07 2023-03-17 上海新耀湃科医疗科技股份有限公司 针头防护式预灌封注射器

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