CN105339027A - Syringe - Google Patents

Syringe Download PDF

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Publication number
CN105339027A
CN105339027A CN201380077429.4A CN201380077429A CN105339027A CN 105339027 A CN105339027 A CN 105339027A CN 201380077429 A CN201380077429 A CN 201380077429A CN 105339027 A CN105339027 A CN 105339027A
Authority
CN
China
Prior art keywords
sheath body
syringe
syringe needle
needle
flask
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.)
Granted
Application number
CN201380077429.4A
Other languages
Chinese (zh)
Other versions
CN105339027B (en
Inventor
叶进民
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.)
Taiwan Veterans Pharmaceutical Co ltd
Taiwan Biotech Co Ltd
CC Biotechnology Corp
Original Assignee
Taiwan Veterans Pharmaceutical Co ltd
Taiwan Biotech Co Ltd
CC Biotechnology Corp
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 Taiwan Veterans Pharmaceutical Co ltd, Taiwan Biotech Co Ltd, CC Biotechnology Corp filed Critical Taiwan Veterans Pharmaceutical Co ltd
Publication of CN105339027A publication Critical patent/CN105339027A/en
Application granted granted Critical
Publication of CN105339027B publication Critical patent/CN105339027B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
    • 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
    • A61M5/19—Syringes having more than one chamber, e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M5/2033—Spring-loaded one-shot injectors with or without automatic needle insertion
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M2005/206—With automatic needle insertion
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M2005/2073—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically preventing premature release, e.g. by making use of a safety lock
    • 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
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A61M5/2455—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic with sealing means to be broken or opened
    • A61M5/2466—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic with sealing means to be broken or opened by piercing without internal pressure increase
    • A61M2005/247—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic with sealing means to be broken or opened by piercing without internal pressure increase with fixed or steady piercing means, e.g. piercing under movement of ampoule
    • 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
    • A61M5/3278—Apparatus for destroying used needles or syringes
    • A61M2005/3284—Deformaton of needle by deflection or bending

Landscapes

  • 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

Disclosed is a syringe, comprising a needle assembly (1), a medicine suite (2) and an injection-propelling assembly (3). The needle assembly enables a needle (11) to be sealed in a needle protection sleeve (10) provided with a sealing membrane (12) to isolate the needle (11) from the outside, so it can be manufactured and packaged under sterile conditions and to prevent the needle (11) from being exposed and contaminated. In addition, the medicine suite (2) is used to package a medicine bottle (5) to provide good protection therefor. Further, the needle assembly (1), the medicine suite (2) equipped with the medicine bottle (5) therein, the injection-propelling assembly (3) and a safety protection sleeve (4) are combined into a syringe. By means of the security protection mechanism between the safety protection sleeve (4) and the injection-propelling assembly (3), the syringe can avoid mistakenly injecting, thus ensuring safety of the syringe. The syringe has the simplicity of automatic and completely bubble-free medicine filling when in use.

Description

Syringe
Injector technology field
The present invention relates to a kind of syringe, espespecially a kind of syringe that can ensure that syringe needle and flask for medicinal preparations function of safety protection.Background technology
The composition construction of existing syringe, it consists predominantly of a syringe body for being used to load flask for medicinal preparations, one end of syringe body is provided with syringe needle, the other end of syringe body is provided with injection propulsion assembly, and in syringe body there is one end of syringe needle to be arranged with one removable group of upper shield, syringe needle cover is placed on interior.Before the injection, in advance flask for medicinal preparations must be loaded on syringe body, and syringe needle is stretched into flask for medicinal preparations, during injection, upper shield is removed, is pierced into syringe needle in person's body to be injected, continued pressing injection propulsion assembly, and the liquid pharmaceutical in flask for medicinal preparations is injected in the person's of being injected body.
But, in the composition construction of existing syringe, its syringe needle upper shield is incorporated into syringe body one end, because being simple wedged connecting structure between upper shield and syringe body, because syringe needle is non-under the gnotobasis being fully sealed, and easily acted on and departed from by external force, syringe needle is caused to be contaminated, syringe is caused to there are the not enough defect of safety in utilization, in addition, when the syringe loads medicament, bubble is tended to have to retain, and further must extrude bubble, and during extrusion bubble, easily connection medicament is extruded, and medicament loadings must be increased, therefore the use of the syringe, its degree of difficulty with it is technical higher, and it is unfavorable for the purposes of emergency injection.
Furthermore, in the composition construction of existing syringe, injection propulsion assembly is only installed in injection body, has no other Security mechanisms, therefore injection propulsion assembly is easily acted on by external force and projects the liquid pharmaceutical in flask for medicinal preparations by syringe needle, causes syringe to use upper inconvenience.The content of the invention
The technical problems to be solved by the invention are：A kind of syringe is provided, existing syringe is solved before use, failing to provide sterile function of safety protection for syringe needle and flask for medicinal preparations.
Technical solution proposed by the invention is：A kind of syringe is provided, it is included：
One needle assembly, it includes a hollow needle guard, at least one syringe needle and a sealer, a syringe needle located space is formed in needle guard, needle guard is in one end of syringe needle located space provided with soft blocking formation blind end, needle guard is in the other end one fitting opening of formation of syringe needle located space, the syringe needle is inserted in the syringe needle located space, and the sealer is fixed in the fitting opening of needle guard, is sealed in syringe needle and is set Have in the needle guard of sealer；
One medicament set group, it is mounted on the sheath body end cap of medicine bottle sheath body side comprising a hollow medicine bottle sheath body and one, and for housing at least one flask for medicinal preparations, and the flask for medicinal preparations corresponds to syringe needle；
One injection propulsion assembly, it includes an oversheath group and an at least injection putter group, oversheath group is sheathed on the outside of medicament set group and provides injection putter assembling and sets wherein, oversheath group one end is connected at the fitting opening of needle guard, terminal part of the sheath group away from needle guard has a safe seizing structure, injection putter group includes an injection putter and a compression spring, one end of the injection putter is stretched into flask for medicinal preparations through the sheath body end cap of medicament set group and abuts piston, the other end of injection putter is arranged compression spring and end has a safe snap-on, compression spring two ends abut injection putter and oversheath group respectively, compression spring is set to provide injection putter the elastic force towards flask for medicinal preparations direction, the safe snap-on of the safe block button construction energy buckle injection putter of oversheath group；And
One safety shield, it includes a body and is formed at the safety pin for covering internal and corresponding injection putter quantity, the safety shield is the end for removable group being sheathed on oversheath group, safety pin is set to be inserted in the safe block button of oversheath group construction with the safe snap-on of injection putter, injection putter being given into buckle and fixed.
In syringe as described above, the injection putter includes one first bar portion, one second bar portion and one is positioned at the abutting part between the first bar portion and the second bar portion, second bar portion end forms the safe snap-on, compression spring is sheathed on the outside of the second bar portion of injection putter, first bar portion of injection putter passes through the sheath body end cap of medicament set group, and the piston abutted in bottle agent bottle can be used to stretch into flask for medicinal preparations, compression spring two ends are abutted on the abutting part of injection putter and the madial wall of oversheath group respectively, the second bar portion of injection putter end forms one towards the tapered taper buckle convex portion of outside dimension, and with a grooving and the shell fragment on the outside of grooving by taper buckle convex portion, there is the pin hole of a connection grooving in shell fragment, constitute the safe snap-on；
The oversheath group includes an outer tube, an inner sleeve, a push rod tube and a pressing sleeve pipe, wherein：
The outer tube one end is connected at the fitting opening of needle guard, and the inner sleeve is to provide the installing of medicament set group wherein, and is together installed in inside outer tube；
The inner sleeve has the ends contact sealer of perforation corresponding to perforation, inner sleeve is formed at the soft blocking of flask for medicinal preparations；
The push rod tube is arranged in inner sleeve away from needle guard one end, injection putter is arranged in inner sleeve and push rod tube, push rod tube end has a buckle end wall, formed on buckle end wall and the through hole that the safe snap-on of injection putter is worn is provided, buckle end wall provides the position of compression spring end abutment；
The pressing casing pipe sleeve is on the outside of the push rod tube and stretches into outer tube, pressing sleeve pipe can in outer tube with Moved axially to limited distance between push rod tube, the one end of sleeve pipe away from needle guard is pressed to stretch out on the outside of outer tube and with a pressing end wall, pressing end wall is formed with perforation, perforation corresponds to the through hole of push rod tube, the pressing end wall of the buckle end wall of push rod tube and pressing sleeve pipe constitutes the safe block button and constructed, the safe snap-on of injection putter is set to pass through the through hole of push rod tube, and be arranged in the perforation of pressing sleeve pipe, the shell fragment of safe snap-on is protruded from outside the perforation of pressing end wall of pressing sleeve pipe, safety shield can be sheathed on outer tube and pressing outside of sleeve, safety pin in safety shield inserts the pin hole of the shell fragment of the safe snap-on of injection putter and stretched into grooving respectively, and then push the buckle end wall Side faces that taper buckle convex portion is expanded and is snapped in push rod tube.
In syringe as described above, the perforation is by the interior taper hole tapered towards outside dimension, the pressing internal surface of sleeve pipe formation stopper slot, in push rod tube outer wall formation spacing block set, spacing block set is located in stopper slot, and stopper slot limitation pressing sleeve pipe is relative to the distance that push rod tube is axially movable.
In syringe as described above, the syringe needle two ends form the first tip and the second tip respectively, with a catch between the first tip and the second tip, and the first tip of syringe needle extends soft blocking, and the tip of syringe needle second is towards the direction of sealer；The needle guard includes a sheath body, one syringe needle positioning seat and a socket ring, described syringe needle located space is formed in the sheath body, sheath body one end has the soft blocking and forms blind end, the fitting opening is formed at the sheath body other end, syringe needle positioning seat is installed in the syringe needle located space of sheath body and can be along sheath body axial displacement, syringe needle positioning seat has one end plate portion and one forms in the ring flat-plate portion that end plate outer peripheral edge extends towards one end, a space is formed in syringe needle positioning seat, fitting opening of the ring flat-plate portion towards sheath body, the sealer is in the fitting opening of sheath body, syringe needle has a catch at neighbouring second tip, the tip of syringe needle first is pierced into the soft blocking of sheath body, the tip of syringe needle second passes through syringe needle positioning seat, catch is resisted against the end plate of syringe needle positioning seat, the socket ring is installed on the fitting opening internal perisporium of sheath body, injection propulsion assembly is connect for group.
In syringe as described above, the needle assembly has more than two syringe needles, and these syringe needles are installed in needle guard arranged in parallelly.
In syringe as described above, the medicament set group includes a medicine bottle sheath body and a sheath body end cap, the medicine bottle sheath body provides the flask for medicinal preparations installing wherein, there is medicine bottle sheath body one end to correspond to the perforation of the flask for medicinal preparations, the other end of medicine bottle sheath body is openend, sheath body end cap is fixedly arranged on the openend of medicine bottle sheath body, and the flask for medicinal preparations is sealed up for safekeeping and is fixed in medicament set group.
In syringe as described above, the medicament set group includes a medicine bottle sheath body and a sheath body end cap, the medicine bottle sheath body provides the flask for medicinal preparations installing wherein, there is medicine bottle sheath body one end to correspond to the perforation of the flask for medicinal preparations, the other end of medicine bottle sheath body is openend, sheath body end cap is fixedly arranged on the openend of medicine bottle sheath body, by institute State flask for medicinal preparations and seal up for safekeeping and be fixed in medicament set group.
In syringe as described above, the medicament set group includes a medicine bottle sheath body and a sheath body end cap, medicine bottle sheath body provides the flask for medicinal preparations installing wherein, there is medicine bottle sheath body one end to correspond to the perforation of the flask for medicinal preparations, the other end of medicine bottle sheath body is openend, sheath body end cap is fixedly arranged on the openend of medicine bottle sheath body, and the flask for medicinal preparations is sealed up for safekeeping and is fixed in medicament set group.
The present invention takes off syringe creation before relying on, it, which is mainly, makes syringe needle be sealed in the needle guard provided with sealer, syringe needle is set to be isolated from the outside, therefore can be in manufacture under gnotobasis and packaging, and the situation for avoiding syringe needle exposed and being contaminated can be reached, it is another that flask for medicinal preparations is packed with medicament set group, good protection is provided flask for medicinal preparations.And be combined into needle assembly, the medicament set group built with flask for medicinal preparations, injection propulsion assembly and safety shield after syringe, by the Security mechanism between safety shield and injection propulsion assembly, syringe is set to exempt from by the injection of false touch, it is ensured that the security of syringe.
Syringe of the present invention is when injection, and user only must first pull down safety shield, safety pin in safety shield is departed from the safe snap-on of injection putter, syringe is in the state of injectable, makes it have good simplicity of operation and security；When person to be used releases the buckle status between injection propulsion assembly and injection putter, using the elastic force of compression spring injection putter can be promoted to produce ejection, and then syringe needle is passed needle guard and is pierced into flask for medicinal preparations, it is automatically performed bubble-free filling medicament, the medicament provided in elastic force pushing flask for medicinal preparations that continues injects the internal of the person of being injected, and syringe is had quick and easy function concurrently when injection is used.
In addition, the syringe of the present invention also can directly built-in more than two flask for medicinal preparations and respective numbers syringe needle, can be to the person of being injected while injection various medicaments, and can apply to the purposes such as emergency injection.
Time purpose of the present invention, is to be sheathed on using safety shield on needle assembly, and syringe needle is bent with the safety pin in safety shield, the bending of syringe needle is pushed function easy with safety on work violently.Brief description of the drawings
Fig. 1 is the diagrammatic cross-section that syringe of the present invention is applied to install the preferred embodiment of single flask for medicinal preparations；Fig. 2 is the diagrammatic cross-section for the preferred embodiment that syringe of the present invention is applied to two flask for medicinal preparations of installing；Fig. 3 is the schematic appearance of syringe preferred embodiment shown in Fig. 2；
Fig. 4 is the perspective exploded view of syringe preferred embodiment shown in Fig. 2 and two flask for medicinal preparations；Fig. 5 is the perspective exploded view of the needle guard in syringe preferred embodiment shown in Fig. 2 to Fig. 4；Fig. 6 is two injection putter schematic perspective views in syringe preferred embodiment shown in Fig. 2 and Fig. 4；Fig. 7 is that the syringe preferred embodiment that two flask for medicinal preparations are equiped with shown in Fig. 2 pulls down safety shield and presses pressing sleeve pipe, releases the use state figure of safe snap-on state； Fig. 8 is that the syringe preferred embodiment that two flask for medicinal preparations are equiped with shown in Fig. 2 is released after safe snap-on state, and needle guard is pierced through in the first tip that compression spring provides elastic force and makes syringe needle, and the second tip of syringe needle is pierced into the use state figure in flask for medicinal preparations；
Fig. 9 be the syringe preferred embodiment that two flask for medicinal preparations are equiped with shown in Fig. 2 after injection is finished, be sheathed on using safety shield on the outside of needle guard and bending syringe needle use state figure.
Drawing reference numeral explanation：1 needle assembly；10 needle guards；11 syringe needles；111 first tips；112 second tips；113 catch；12 sealers；13 sheath bodies；131 syringe needle located spaces；132 fitting openings；133 soft blockings；14 syringe needle positioning seats；141 end plates；142 ring flat-plate portions；15 socket rings；2 medicament set groups；20 medicine bottle sheath bodies；21 sheath body end caps；3 injection propulsion assemblies；30 oversheath groups；31 injection putter groups；310 compression springs；311 injection putters；312 first bar portions；313 second bar portions；314 abutting parts；315 safe snap-ons；316 buckle convex portions；317 groovings；318 shell fragments；319 pin holes；32 outer tubes；33 inner sleeves；34 push rod tubes；341 buckle end walls；342 through holes；343 spacing block sets；35 pressing sleeve pipes；351 pressing end walls；352 perforations；353 stopper slots；4 safety shields；40 bodies；41 safety pins；5 flask for medicinal preparations；50 bottles；51 soft blockings；52 pistons；53 retaining collars.Embodiment
Coordinate schema and presently preferred embodiments of the present invention below, the present invention is expanded on further to reach the technological means that predetermined goal of the invention is taken.
As shown in Figure 1, Figure 2 and Figure 3, it is the several preferred embodiments for disclosing syringe of the present invention, the composition construction of the syringe is mainly comprising a needle assembly 1, a medicament set group 2, the one injection safety shield 4 of propulsion assembly 3 and one, install wherein that there is provided injecting purposes for providing one or more flask for medicinal preparations 5.
As shown in Figures 4 and 5, the needle assembly 1 includes a hollow needle guard 10, one or more the sealer 12 of syringe needle 11 and one, a syringe needle located space 131 is formed in the needle guard 10, needle guard 10 is in syringe needle located space 131-end provided with soft blocking 133 formation blind end, needle guard 10 is in the other end one fitting opening 132 of formation of syringe needle located space 131, the syringe needle 11 is provided to insert in the syringe needle located space 131 via fitting opening 132, when syringe needle 11 is two or more, it is in be installed in arranged in parallelly in needle guard 10 that these syringe needles 11, which are, the syringe needle 11 is located at the two ends of syringe needle 11 comprising one first tip 111 and one second tip 112 respectively, first tip 111 of syringe needle 11 extends soft blocking 133, the direction of fitting opening 132 is stretched in the tip 112 of syringe needle 11 second, the sealer 12 is affixed to be closed syringe needle located space 131 in the fitting opening 132 of needle guard 10, the syringe needle 11 is set to be sealed in the needle guard 10 provided with sealer 12, it is contaminated with avoiding syringe needle 11 exposed. As shown in Figures 4 and 5, in this preferred embodiment, the needle guard 10 includes a sheath body 13, one syringe needle positioning seat 14 and a socket ring 15, described syringe needle located space 131 is formed in the sheath body 13, sheath body 13-end has the soft blocking 133 and forms blind end, the fitting opening 132 is formed at the other end of sheath body 13, the syringe needle positioning seat 14 is installed in the syringe needle located space 131 of sheath body 13 and can be along the axial displacement of sheath body 13, there is the syringe needle positioning seat 14 one end plate portion 141 and one to form in the ring flat-plate portion 142 that the outer peripheral edge of end plate 141 extends towards one end, make to form a space in syringe needle positioning seat 14, ring flat-plate portion 142 is towards in the fitting opening 132 of sheath body 13, the sealer 12 is in the fitting opening 132 of sheath body 13, syringe needle 11 has a catch 113 at neighbouring second tip 112, the first tip of syringe needle 111 is pierced into the soft blocking 133 of sheath body 13, the second tip of syringe needle 112 passes through syringe needle positioning seat 14, and catch 113 is resisted against in the end plate 141 of syringe needle positioning seat 14, the socket ring 15 is mounted on the internal perisporium of fitting opening 132 of sheath body 13, injection propulsion assembly 3 is connect for group.
As shown in Figures 2 and 4, the medicament set group 2 is to include a medicine bottle sheath body 20 and a sheath body end cap 21, for housing one or more flask for medicinal preparations 5, the flask for medicinal preparations 5 includes a bottle 50, one end of bottle 50 is a bottle end with soft blocking 51, the periphery of soft blocking 51 at bottle end is simultaneously fixed provided with retaining collar 53, bottle end is set to be closed for soft blocking 51, the another end of flask for medicinal preparations 5 is openend, a piston 52 is provided with bottle 50, bottle 50 is set to be internally formed a closed liquid pharmaceutical charge space, institute's magic potion bottle cover shell 20 is to provide the flask for medicinal preparations 5 and installed wherein, medicine bottle sheath body 20 corresponds to one end and perforation is formed with the soft blocking 51 of flask for medicinal preparations 5, the other end of medicine bottle sheath body 20 is openend, sheath body end cap 21 is the openend for being fixedly arranged on medicine bottle sheath body 20, the flask for medicinal preparations 5 is sealed up for safekeeping and is fixed in medicament set group 2.
As shown in Figures 2 and 4, the injection propulsion assembly 3 is to include an oversheath group 30 and one or two or more sets of injection putter groups 31, the oversheath group 30 is to be sheathed on the outside of medicament set group 2, and offer injection putter group 31 is installed wherein, oversheath group 30-end is connected at the fitting opening 132 of needle guard 10, the terminal part of the oversheath group 30 away from needle guard 10 has a safe seizing structure, the injection putter group 31 includes an injection putter 311 and a compression spring 310, the injection putter 311 includes one first bar portion 312, one second bar portion 313, and one be located at abutting part 314 between the first bar portion 312 and the second bar portion 313, the end of second bar portion 313 has a safe snap-on 315, compression spring 310 is sheathed on the outside of the second bar portion 313 of injection putter 311, first bar portion 312 of injection putter 311 is stretched into the bottle 50 of flask for medicinal preparations 5 through the sheath body end cap 21 of medicament set group 2, and abut piston 52, the two ends of compression spring 310 are abutted on the abutting part 314 of injection putter 311 and the madial wall of the terminal part of oversheath group 30 respectively, compression spring 310 can provide injection putter 311 elastic force towards the direction of flask for medicinal preparations 5, the safe block button construction of oversheath group 30 can give buckle to the safe snap-on 315 of injection putter 311. As shown in Figures 2 and 6, described when it is more than two to note push rod group 31, the injection putter 31 1 can be the kenel of equal or different length, and the length of injection putter simultaneously makees corresponding setting according to the capacity of the liquid pharmaceutical in flask for medicinal preparations.
As shown in Figures 2 and 4, the safety shield 4 is the end for removable group being sheathed on oversheath group 30, the safety shield 4 includes a body 40 and is formed at the safety pin 41 in body 40 corresponding to the quantity of injection putter 31 1, the safety pin 41 can be inserted in the safe block button of oversheath group 30 construction with the safe snap-on 3 15 of injection putter 31 1, injection putter 31 1 being given into buckle and fixed.
As shown in Fig. 2, Fig. 4 and Fig. 6, in this preferred embodiment, the end of 311 second bar portion of injection putter 313 forms one towards the tapered taper buckle convex portion 316 of outside dimension, and with a grooving 3 17 and the shell fragment 3 18 positioned at the outside of grooving 317 by taper buckle convex portion 316, there is the pin hole 319 of a connection grooving 317 in shell fragment 3 18, and constitute described safe snap-on 315.
As shown in Figures 2 and 4, the oversheath group 30 includes an outer tube 32, an inner sleeve 33, a push rod tube 34 and a pressing sleeve pipe 35, wherein：
The outer tube 32 is provided at the outside of needle guard 10；The inner sleeve 33 is to provide medicament set group 2 and installed wherein, and is together installed in inside outer tube 32, and is connected to inner sleeve 33-end in the socket ring 15 at the fitting opening 132 of sheath body 13.The inner sleeve 33 has the ends contact sealer 12 of perforation corresponding to perforation, inner sleeve 33 is formed at the soft blocking 133 of flask for medicinal preparations 5, and the syringe needle 11 corresponds respectively to the soft blocking 133 of a flask for medicinal preparations 5.
The push rod tube 34 is to be arranged in the one end of inner sleeve 33 away from needle guard 10, the injection putter 311 is arranged in the inner sleeve 33 and push rod tube 34, the end of push rod tube 34 has a buckle end wall 341, formed on buckle end wall and the through hole 342 that the safe snap-on 315 of injection putter 31 1 is worn is provided, and with the position of the offer end abutment of compression spring 310 of buckle end wall 341.
The pressing sleeve pipe 35 is to be sheathed on the outside of push rod tube 34 and stretch into outer tube 32, the pressing sleeve pipe 35 can be moved axially to limited distance between outer tube 32 and push rod tube 34, press the one end of sleeve pipe 35 away from needle guard 10 and stretch out the outside of outer tube 32 and with a pressing end wall 351, in this preferred embodiment, the pressing sleeve pipe 35 inwall formation stopper slot 353, in the outer wall of push rod tube 34 formation spacing block set 343, spacing block set 343 is located in stopper slot 353, by the limitation pressing sleeve pipe 35 of stopper slot 353 relative to the distance that push rod tube 34 is axially movable, the pressing end wall 351 is formed with perforation 352, the perforation 352 is respectively corresponding to the through hole 342 of push rod tube 34, the perforation 352 can be by the interior taper hole tapered towards outside dimension, the pressing end wall 351 of buckle end wall 341 and pressing sleeve pipe 35 by push rod tube 34 constitutes described safe block button and constructed, the safe snap-on 315 of injection putter 31 1 is set to pass through push rod tube 34 Through hole, and be arranged in the perforation 352 of pressing sleeve pipe 35, the shell fragment 318 of safe snap-on 315 is protruded from outside the perforation 352 of pressing end wall 351 of pressing sleeve pipe 35.
The safety shield 4 can be sheathed on outer tube 32 and the outside of pressing sleeve pipe 35, and make the safety pin 41 in safety shield 4 insert respectively injection putter 31 1 safe snap-on 315 shell fragment 318 pin hole 3 19 and stretch into grooving 317, and then the side of buckle end wall 341 that taper buckle convex portion 316 is expanded and is snapped in push rod tube 34 is pushed, and in secure localization state.
As shown in Figure 2, use situation on syringe of the present invention, the syringe of the present invention is because being to make syringe needle 11 be sealed in the needle guard 10 provided with sealer 12, the situation that syringe needle 11 can be avoided exposed and be contaminated, it is another that flask for medicinal preparations 5 is packed with medicament set group 20, good secured fashion is provided flask for medicinal preparations 5, when syringe is by needle assembly 1, built with the medicament set group 2 of flask for medicinal preparations 5, after injection propulsion assembly 3 is combined with safety shield 4, can be by the Security mechanism between safety shield 4 and injection propulsion assembly 3, ensure the safety of syringe.
As shown in fig. 7, in the safe snap-on 315 in use, user must first pull down safety shield 4, making the safety pin 41 in safety shield 4 depart from injection putter 31 1, making syringe be in the state of injectable.When injection, user must only press pressing sleeve pipe 35, make pressing sleeve pipe 35 push safe snap-on 315 inside contract and can be by the through hole 342 of push rod tube 34, solve buckle status, as shown in Figure 8, the elastic force continued using compression spring 310, first ejection injection putter 31 1, flask for medicinal preparations 5 and inner sleeve 33 are launched, the second tip 1 12 of syringe needle 11 is set to be pierced into soft blocking 51 to the bottle at 5 bottles of ends of flask for medicinal preparations, and it is automatically performed bubble-free filling medicament, pierce through the soft blocking 133 of needle guard 10 and be pierced into the internal of person to be injected in first tip 111 of syringe needle 11, and persistently provide elastic force effect in compression spring 310, and push injection putter 31 1 and inject the medicament in flask for medicinal preparations 5 in the body for the person of being injected.
When the present invention the built-in more than two flask for medicinal preparations of syringe and respective numbers syringe needle when, and the purposes of emergency injection can be can apply to the person's of being injected injection various medicaments simultaneously.
As shown in Figure 9, after the completion of to be injected, syringe is removed from the person of being injected, it is another that the outside of needle guard 10 is sheathed on safety shield 4, rely on safety pin 41 simultaneously by the bending of syringe needle 11, and the syringe needle 11 of bending cover is placed on inside safety shield 4, allow user and its arround people avoid by needlestick injuries.
It is described above to be merely exemplary for the purpose of the present invention; and it is nonrestrictive, those of ordinary skill in the art understand, in the case where not departing from the spirit and scope that claim is limited; can many modifications may be made, change or equivalent, but fall within protection scope of the present invention.

Claims (1)

  1. Claim
    1. a kind of syringe, it is characterised in that it is included：
    One needle assembly, it includes a hollow needle guard, at least one syringe needle and a sealer, a syringe needle located space is formed in needle guard, needle guard is in one end of syringe needle located space provided with soft blocking formation blind end, needle guard is in the other end one fitting opening of formation of syringe needle located space, the syringe needle is inserted in the syringe needle located space, and the sealer is fixed in the fitting opening of needle guard, syringe needle is sealed in the needle guard provided with sealer；
    One medicament set group, it is mounted on the sheath body end cap of medicine bottle sheath body side comprising a hollow medicine bottle sheath body and one, and for housing at least one flask for medicinal preparations, and the flask for medicinal preparations corresponds to syringe needle；
    One injection propulsion assembly, it includes an oversheath group and an at least injection putter group, oversheath group is sheathed on the outside of medicament set group and provides injection putter assembling and sets wherein, oversheath group one end is connected at the fitting opening of needle guard, terminal part of the sheath group away from needle guard has a safe seizing structure, injection putter group includes an injection putter and a compression spring, one end of the injection putter is stretched into flask for medicinal preparations through the sheath body end cap of medicament set group and abuts piston, the other end of injection putter is arranged compression spring and end has a safe snap-on, compression spring two ends abut injection putter and oversheath group respectively, compression spring is set to provide injection putter the elastic force towards flask for medicinal preparations direction, the safe snap-on of the safe block button construction energy buckle injection putter of oversheath group；
    One safety shield, it includes a body and is formed at the safety pin for covering internal and corresponding injection putter quantity, the safety shield is the end for removable group being sheathed on oversheath group, safety pin is set to be inserted in the safe block button of oversheath group construction with the safe snap-on of injection putter, injection putter being given into buckle and fixed.
    2. syringe according to claim 1, it is characterized in that, the injection putter includes one first bar portion, one second bar portion and one is positioned at the abutting part between the first bar portion and the second bar portion, second bar portion end forms the safe snap-on, compression spring is sheathed on the outside of the second bar portion of injection putter, first bar portion of injection putter passes through the sheath body end cap of medicament set group, and the piston abutted in bottle agent bottle can be used to stretch into flask for medicinal preparations, compression spring two ends are abutted on the abutting part of injection putter and the madial wall of oversheath group respectively, the second bar portion of injection putter end forms one towards the tapered taper buckle convex portion of outside dimension, and with a grooving and the shell fragment on the outside of grooving by taper buckle convex portion, there is the pin hole of a connection grooving in shell fragment, constitute the safe snap-on；
    The oversheath group includes an outer tube, an inner sleeve, a push rod tube and a pressing sleeve pipe, wherein： The outer tube one end is connected at the fitting opening of needle guard, and the inner sleeve is to provide the installing of medicament set group wherein, and is together installed in inside outer tube；
    The inner sleeve has the ends contact sealer of perforation corresponding to perforation, inner sleeve is formed at the soft blocking of flask for medicinal preparations；
    The push rod tube is arranged in inner sleeve away from needle guard one end, injection putter is arranged in inner sleeve and push rod tube, push rod tube end has a buckle end wall, formed on buckle end wall and the through hole that the safe snap-on of injection putter is worn is provided, buckle end wall provides the position of compression spring end abutment；
    The pressing casing pipe sleeve is on the outside of push rod tube and stretches into outer tube, pressing sleeve pipe can be moved axially to limited distance between outer tube and push rod tube, the one end of sleeve pipe away from needle guard is pressed to stretch out on the outside of outer tube and with a pressing end wall, pressing end wall is formed with perforation, perforation corresponds to the through hole of push rod tube, the pressing end wall of the buckle end wall of push rod tube and pressing sleeve pipe constitutes the safe block button and constructed, the safe snap-on of injection putter is set to pass through the through hole of push rod tube, and be arranged in the perforation of pressing sleeve pipe, the shell fragment of safe snap-on is protruded from outside the perforation of pressing end wall of pressing sleeve pipe, safety shield can be sheathed on outer tube and pressing outside of sleeve, safety pin in safety shield inserts the pin hole of the shell fragment of the safe snap-on of injection putter and stretched into grooving respectively, and then push the expansion of taper buckle convex portion and be snapped in the buckle end wall of push rod tube sideways.
    3. syringe according to claim 2, it is characterized in that, the perforation is by the interior taper hole tapered towards outside dimension, the pressing internal surface of sleeve pipe formation stopper slot, in push rod tube outer wall formation spacing block set, spacing block set is located in stopper slot, and stopper slot limitation pressing sleeve pipe is relative to the distance that push rod tube is axially movable.
    4. syringe according to any one of claim 1 to 3, it is characterized in that, the syringe needle two ends form the first tip and the second tip respectively, there is a catch between the first tip and the second tip, first tip of syringe needle extends soft blocking, and the tip of syringe needle second is towards the direction of sealer；
    The needle guard includes a sheath body, one syringe needle positioning seat and a socket ring, described syringe needle located space is formed in the sheath body, sheath body one end has the soft blocking and forms blind end, the fitting opening is formed at the sheath body other end, syringe needle positioning seat is installed in the syringe needle located space of sheath body and can be along sheath body axial displacement, syringe needle positioning seat has one end plate portion and one forms in the ring flat-plate portion that end plate outer peripheral edge extends towards one end, a space is formed in syringe needle positioning seat, fitting opening of the ring flat-plate portion towards sheath body, the sealer is in the fitting opening of sheath body, syringe needle has a catch at neighbouring second tip, the tip of syringe needle first is pierced into the soft blocking of sheath body, the tip of syringe needle second passes through syringe needle positioning seat, catch is resisted against the end plate of syringe needle positioning seat, the socket ring is installed on the fitting opening internal perisporium of sheath body, injection propulsion assembly is connect for group.
    5. syringe according to claim 4, it is characterised in that the needle assembly has two or more Syringe needle, these syringe needles are installed in needle guard arranged in parallelly.
    6. syringe according to any one of claim 1 to 3, it is characterized in that, the medicament set group includes a medicine bottle sheath body and a sheath body end cap, the medicine bottle sheath body provides the flask for medicinal preparations installing wherein, there is medicine bottle sheath body one end to correspond to the perforation of the flask for medicinal preparations, the other end of medicine bottle sheath body is openend, and sheath body end cap is fixedly arranged on the openend of medicine bottle sheath body, the flask for medicinal preparations is sealed up for safekeeping and is fixed in medicament set group.
    7. syringe according to claim 4, it is characterized in that, the medicament set group includes a medicine bottle sheath body and a sheath body end cap, the medicine bottle sheath body provides the flask for medicinal preparations installing wherein, there is medicine bottle sheath body one end to correspond to the perforation of the flask for medicinal preparations, the other end of medicine bottle sheath body is openend, and sheath body end cap is fixedly arranged on the openend of medicine bottle sheath body, the flask for medicinal preparations is sealed up for safekeeping and is fixed in medicament set group.
    8. syringe according to claim 5, it is characterized in that, the medicament set group includes a medicine bottle sheath body and a sheath body end cap, medicine bottle sheath body provides the flask for medicinal preparations installing wherein, there is medicine bottle sheath body one end to correspond to the perforation of the flask for medicinal preparations, the other end of medicine bottle sheath body is openend, and sheath body end cap is fixedly arranged on the openend of medicine bottle sheath body, the flask for medicinal preparations is sealed up for safekeeping and is fixed in medicament set group.
CN201380077429.4A 2013-06-28 2013-06-28 Syringe Active CN105339027B (en)

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PCT/CN2013/000782 WO2014205604A1 (en) 2013-06-28 2013-06-28 Syringe

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CN106975126A (en) * 2017-05-04 2017-07-25 广东工业大学 A kind of injection device
WO2021051350A1 (en) * 2019-09-19 2021-03-25 群康生技股份有限公司 Common injection device

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AT519383B1 (en) * 2016-10-27 2018-09-15 Pharma Consult Gmbh Injection device, in particular autoinjector, for the simultaneous delivery of several drugs
EP4204045A4 (en) * 2020-09-08 2024-09-18 Emergent Product Dev Gaithersburg Inc Autoinjector for administration of medications

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US4226235A (en) * 1979-01-25 1980-10-07 Survival Technology, Inc. Plural injecting device
US6743203B1 (en) * 1999-07-27 2004-06-01 Pharma Consult Ges.M.B.H. Device for automatically injecting injection liquids
CN101180090A (en) * 2004-12-09 2008-05-14 韦斯特制药服务公司 Automatic injection and retraction syringe
CN101479001A (en) * 2006-05-10 2009-07-08 欧文蒙福德有限公司 Injection device
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Publication number Priority date Publication date Assignee Title
CN106975126A (en) * 2017-05-04 2017-07-25 广东工业大学 A kind of injection device
CN106975126B (en) * 2017-05-04 2023-11-07 广东工业大学 Injection device
WO2021051350A1 (en) * 2019-09-19 2021-03-25 群康生技股份有限公司 Common injection device

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WO2014205604A1 (en) 2014-12-31

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