CN105339027B - Syringe - Google Patents
Syringe Download PDFInfo
- Publication number
- CN105339027B CN105339027B CN201380077429.4A CN201380077429A CN105339027B CN 105339027 B CN105339027 B CN 105339027B CN 201380077429 A CN201380077429 A CN 201380077429A CN 105339027 B CN105339027 B CN 105339027B
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- China
- Prior art keywords
- sheath body
- syringe
- syringe needle
- group
- flask
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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
A kind of syringe,It includes needle assembly (1),Medicament set group (2) and injection propulsion assembly (3),The needle assembly is to make syringe needle (11) be sealed in the needle guard (10) provided with sealer (12) Nei,Syringe needle (11) is set to be isolated from the outside,And it can be manufactured under gnotobasis and packaging,Avoid syringe needle (11) exposed and be contaminated,Separately with medicament set group (2) packaging flask for medicinal preparations (5),Good protection is provided flask for medicinal preparations (5),Again with needle assembly (1),Built with the medicament set group (2) of flask for medicinal preparations (5),After injection propulsion assembly (3) is combined into syringe with safety shield (4),By the Security mechanism between safety shield (4) and injection propulsion assembly (3),Syringe is set to exempt from by the injection of false touch,Ensure the security of syringe,When use is injected,Simplicity with the automatic filling of bubble-free medicament completely.
Description
Technical 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, syringe
One end of body is provided with syringe needle, and the other end of syringe body is provided with injection propulsion assembly, and has syringe needle in syringe body
One end be arranged with one removable group of upper shield, syringe needle cover is placed in.Before the injection, flask for medicinal preparations must be loaded on syringe sheet in advance
Body, and make syringe needle stretch into flask for medicinal preparations, during injection, upper shield is removed, is pierced into syringe needle in person's body to be injected, continue pressing injection
Propulsion assembly, by the liquid pharmaceutical injection person's of being injected body in flask for medicinal preparations.
However, in the composition construction of existing syringe, its syringe needle upper shield is incorporated into syringe body one end, because of upper shield and note
Simple wedged connecting structure between emitter body, because syringe needle is non-under the gnotobasis being fully sealed, and easily by external force act on and
Depart from, cause syringe needle to be contaminated, the defects of causing syringe to there are safety in utilization deficiency, in addition, the syringe loads
When during medicament, tending to have bubble and retain, and further must extrude bubble, and extruding bubble, medicament extrusion is easily connected, and must increase
Medicament loadings, therefore the use of the syringe, its degree of difficulty are unfavorable for the purposes of emergency injection with technical higher.
Furthermore in the composition construction of existing syringe, injection propulsion assembly is only installed in injection body, has no other peaces
Full protection mechanism, therefore inject propulsion assembly and easily acted on by external force and project the liquid pharmaceutical in flask for medicinal preparations by syringe needle, cause
Inconvenience in syringe use.
The content of the invention
The technical problems to be solved by the invention are：A kind of syringe is provided, solves existing syringe before use, for pin
Head fails to provide sterile function of safety protection with 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, formed in needle guard
One syringe needle located space, needle guard in one end of syringe needle located space be provided with soft blocking formed blind end, needle guard in
The other end of syringe needle located space forms a fitting opening, and 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 set to be sealed in the needle guard provided with sealer；
One medicament set group, it includes a hollow medicine bottle sheath body and one and is mounted on the sheath body end cap of medicine bottle sheath body side, uses
In accommodating 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 at least an injection putter group, oversheath group are sheathed on medicine
On the outside of agent set group and offer injection putter assembling is set wherein, and oversheath group one end is connected at the fitting opening of needle guard, outside
Terminal part of the sheath group away from needle guard constructs with a safe block button, and injection putter group includes an injection putter and a compression
Spring, one end of the injection putter are stretched into flask for medicinal preparations through the sheath body end cap of medicament set group and abut piston, injection putter
The other end be arranged compression spring and end has a safe snap-on, compression spring both ends abut injection putter and oversheath respectively
Group, enables compression spring to provide injection putter the elastic force towards flask for medicinal preparations direction, and the safe block button construction of oversheath group can block
Detain the safe snap-on of injection putter；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 inserted in the safety card of oversheath group
Button construction is with the safe snap-on of injection putter, giving buckle by injection putter and fixing.
In syringe as described above, the injection putter includes one first bar portion, one second bar portion with one positioned at the
Abutting part between one bar portion and the second bar portion, the second bar portion end form the safe snap-on, and compression spring is sheathed on injection
On the outside of second bar portion of push rod, the first bar portion of injection putter passes through the sheath body end cap of medicament set group, and can be used to stretch into medicament
The piston in flask for medicinal preparations is abutted in bottle, compression spring both ends abut the abutting part of injection putter and the madial wall of oversheath group respectively
On, the second bar portion of injection putter end forms one towards the tapered taper buckle convex portion of outside dimension, and passes through taper with one
The grooving of buckle convex portion and the shell fragment on the outside of the grooving, there is in shell fragment the pin hole of a connection grooving, form the safety
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 medicament set group and installs it
In, and be together installed in inside outer tube；
The inner sleeve has the ends contact envelope of perforation corresponding to perforation, inner sleeve is formed at the soft blocking of flask for medicinal preparations
Film；
The push rod tube is arranged in inner sleeve and is arranged in inner sleeve and push rod tube away from needle guard one end, injection putter
Interior, push rod tube end has a buckle end wall, is formed on buckle end wall and provides the through hole that the safe snap-on of injection putter is worn,
Buckle end wall provides the position of compression spring end abutment；
The press sleeve pipe sleeve is on the outside of push rod tube and stretches into outer tube, and pressing sleeve pipe can be in outer tube and pushing rod sleeve
Moved axially between pipe, the one end of pressing sleeve pipe away from needle guard is stretched out on the outside of outer tube and with a pressing end wall, pressing
For end wall formed with perforation, perforation corresponds to the through hole of push rod tube, the press-side of the buckle end wall and pressing sleeve pipe of push rod tube
Wall forms the safe block button construction, the safe snap-on of injection putter is passed through the through hole of push rod tube, and be arranged in pressing
In the perforation of sleeve pipe, the shell fragment of safe snap-on is protruded from outside the perforation of pressing end wall of pressing sleeve pipe, and safety shield can be sheathed on
For outer tube with pressing outside of sleeve, the safety pin in safety shield inserts inserting for the shell fragment of the safe snap-on of injection putter respectively
Pin-and-hole and stretch into grooving, and then push the expansion of taper buckle convex portion and be snapped in the buckle end wall side of 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
Stopper slot is formed, spacing block set is formed in push rod tube outer wall, spacing block set is located in stopper slot, stopper slot limitation pressing sleeve pipe
The distance being axially movable relative to push rod tube.
In syringe as described above, the syringe needle both ends form the first tip and the second tip respectively, in the first tip
There is a catch between the second tip, 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, a syringe needle positioning seat and a socket ring, and described syringe needle located space is formed in the sheath body,
Sheath body one end has the soft blocking and forms blind end, and 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 have one end plate portion and one one-tenth along sheath body axial displacement, syringe needle positioning seat
The ring flat-plate portion that shape extends in end plate outer peripheral edge towards one end, a space, dress of the ring flat-plate portion towards sheath body are formed in syringe needle positioning seat
With opening, for the sealer in the fitting opening of sheath body, syringe needle has a catch, the point of syringe needle first at neighbouring second tip
Portion is pierced into the soft blocking of sheath body, and the tip of syringe needle second passes through syringe needle positioning seat, and catch is resisted against the end plate of syringe needle positioning seat
Portion, the socket ring are installed on the fitting opening internal perisporium of sheath body, and 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 arranged in parallelly
It is installed in needle guard.
In syringe as described above, the medicament set group includes a medicine bottle sheath body and a sheath body end cap, the medicine bottle set
Shell provides the flask for medicinal preparations installing wherein, and medicine bottle sheath body has the perforation that one end corresponds to the flask for medicinal preparations, medicine bottle sheath body
The other end is openend, and 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 on medicament set group
It is interior.
In syringe as described above, the medicament set group includes a medicine bottle sheath body and a sheath body end cap, the medicine bottle set
Shell provides the flask for medicinal preparations installing wherein, and medicine bottle sheath body has the perforation that one end corresponds to the flask for medicinal preparations, medicine bottle sheath body
The other end is openend, and 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 on medicament set group
It is interior.
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 carry
For flask for medicinal preparations installing wherein, medicine bottle sheath body has a perforation that one end corresponds to the flask for medicinal preparations, medicine bottle sheath body it is another
Hold and be fixedly arranged on the openend of medicine bottle sheath body for openend, sheath body end cap, 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 mainly makes syringe needle be sealed in the needle guard provided with sealer,
Syringe needle is isolated from the outside, therefore can be manufactured under gnotobasis with packing, and can reach and avoid syringe needle exposed and be contaminated
Situation, flask for medicinal preparations is separately packed with medicament set group, good protection is provided flask for medicinal preparations.And in needle assembly, built with flask for medicinal preparations
Medicament set group, after injection propulsion assembly and safety shield be combined into syringe, by safety shield and inject between propulsion assembly
Security mechanism, syringe is exempted from by the injection of false touch, it is ensured that the security of syringe.
For syringe of the present invention when injection, user only must first pull down safety shield, make the safety pin in safety shield
Depart from the safe snap-on of injection putter, syringe is in the state of injectable, make it have good simplicity of operation and peace
Quan Xing；When person to be used releases the buckle status between injection propulsion assembly and injection putter, the elastic force of compression spring can be utilized
Promote injection putter to produce ejection, and then syringe needle is passed needle guard and be pierced into flask for medicinal preparations, be automatically performed bubble-free filling
Medicament, continue and provide inside the medicament injection person of being injected that elastic force is pushed in flask for medicinal preparations, make syringe simultaneous when use is injected
The quick and easy function of tool.
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 right
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, is inserted with the safety in safety shield
Pin bending syringe needle, makes function easy with safety in the bending operation of syringe needle.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
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 press sleeve
Pipe, release the use state figure of safe snap-on state；
Fig. 8 is after the safe snap-on state of syringe preferred embodiment releasing of two flask for medicinal preparations is equiped with shown in Fig. 2, to compress bullet
Needle guard is pierced through in the first tip that spring provides elastic force and makes syringe needle, and the second tip of syringe needle is pierced into the use state in flask for medicinal preparations
Figure；
Fig. 9 be the syringe preferred embodiment that two flask for medicinal preparations are equiped with shown in Fig. 2 after injection, sheath safe to use
It is sheathed on the use state figure of needle guard outside and bending syringe needle.
Reference numeral explanation：
The needle guard of 1 needle assembly 10
The tip of 11 syringe needle 111 first
The catch of 112 second tip 113
The sheath body of 12 sealer 13
The fitting opening of 131 syringe needle located space 132
The 133 soft syringe needle positioning seats of blocking 14
The ring flat-plate portion of 141 end plate 142
15 socket rings
The medicine bottle sheath body of 2 medicament set group 20
21 sheath body end caps
The 3 injection oversheath groups of propulsion assembly 30
The compression spring of 31 injection putter group 310
The bar portion of 311 injection putter 312 first
The abutting part of 313 second bar portion 314
The 315 safe buckle convex portions of snap-on 316
The shell fragment of 317 grooving 318
The outer tube of 319 pin hole 32
The push rod tube of 33 inner sleeve 34
The through hole of 341 buckle end wall 342
343 spacing block sets 35 press sleeve pipe
The 351 pressing perforations of end wall 352
353 stopper slots
The body of 4 safety shield 40
41 safety pins
The bottle of 5 flask for medicinal preparations 50
The 51 soft pistons of blocking 52
53 retaining collars
Embodiment
Coordinate schema and presently preferred embodiments of the present invention below, the present invention is expanded on further to reach predetermined goal of the invention institute
The technological means taken.
As shown in Figure 1, Figure 2 and Figure 3, it is several preferred embodiments for disclosing syringe of the present invention, the composition of the syringe
Construction is mainly comprising a needle assembly 1, a medicament set group 2, the one injection safety shield 4 of propulsion assembly 3 and one, for providing
One or more flask for medicinal preparations 5 is installed wherein, there is provided injecting purposes.
As shown in Figures 4 and 5, the needle assembly 1 includes a hollow needle guard 10, one or more pin
First 11 and a sealer 12, a syringe needle located space 131 is formed in the needle guard 10, and needle guard 10 is in syringe needle located space
131 one end are provided with soft blocking 133 and form blind end, and needle guard 10 forms a dress in the other end of syringe needle located space 131
With opening 132, there is provided the syringe needle 11 is inserted in the syringe needle located space 131 via fitting opening 132, when syringe needle 11 is two
During the above, it is in be installed in arranged in parallelly in needle guard 10 that these syringe needles 11, which are, and the syringe needle 11 includes one first tip 111
It is located at the both ends of syringe needle 11 respectively with one second tip 112, the first tip 111 of syringe needle 11 extends soft blocking 133, syringe needle 11
The direction of fitting opening 132 is stretched in second tip 112, the sealer 12 be affixed in the fitting opening 132 of needle guard 10 and
Syringe needle located space 131 is closed, the syringe needle 11 is sealed in the needle guard 10 provided with sealer 12, to avoid
Syringe needle 11 is exposed and is contaminated.
As shown in Figures 4 and 5, in this preferred embodiment, the needle guard 10 includes a sheath body 13, a syringe needle positions
Seat 14 and one is socketed ring 15, described syringe needle located space 131 is formed in the sheath body 13, the one end of sheath body 13 has the soft envelope
Fill in 133 and form blind end, the fitting opening 132 is formed at the other end of sheath body 13, and the syringe needle positioning seat 14 is installed in
In the syringe needle located space 131 of sheath body 13 and there can be one end plate portion 141 along the axial displacement of sheath body 13, the syringe needle positioning seat 14
And one 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, and the sealer 12 is in the fitting opening 132 of sheath body 13, syringe needle 11
There is 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, pin
First second tip 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 set
Connect ring 15 to be 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 include a bottle 50, and one end of bottle 50 has soft blocking for one
51 bottle end, the periphery of soft blocking 51 at bottle end are simultaneously fixed provided with retaining collar 53, bottle end is given for soft blocking 51
Closing, the another end of flask for medicinal preparations 5 is openend, is provided with a piston 52 in bottle 50, bottle 50 is internally formed a closed liquid
Medicament charge space, the medicine bottle sheath body 20 are to provide the flask for medicinal preparations 5 and installed wherein, and medicine bottle sheath body 20 has one end corresponding
Formed with perforation at the soft blocking 51 of flask for medicinal preparations 5, the other end of medicine bottle sheath body 20 is openend, and sheath body end cap 21 is fixed
In the openend of 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 comprising an oversheath group 30 and one or two or more sets of
Injection putter group 31, the oversheath group 30 is to be sheathed on the outside of medicament set group 2, and provides injection putter group 31 and install it
In, the one end of oversheath group 30 is connected at the fitting opening 132 of needle guard 10, and the oversheath group 30 is away from needle guard 10
Terminal part constructed with a safe block button, 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 is located at the first bar portion 312 and second
Abutting part 314 between bar portion 313, the end of the second bar portion 313 have a safe snap-on 315, and compression spring 310 is sheathed on injection
The outside of the second bar portion 313 of push rod 311, the first bar portion 312 of injection putter 311 through medicament set group 2 sheath body end cap 21 and
Stretch into the bottle 50 of flask for medicinal preparations 5, and abut piston 52, the both ends of compression spring 310 abut the abutting part of injection putter 311 respectively
314 with the madial wall of the terminal part of oversheath group 30, compression spring 310 can be provided injection putter 311 towards the direction of flask for medicinal preparations 5
Elastic force, oversheath group 30 safe block button construction can give buckle to the safe snap-on 315 of injection putter 311.
As shown in Figures 2 and 6, it is described when note push rod group 31 for it is more than two when, the injection putter 311 can be it is isometric or
The kenel of Length discrepancy, the length of injection putter are simultaneously set accordingly 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 protective
Set 4 includes a body 40 and is formed in body 40 corresponding to the safety pin 41 of the quantity of injection putter 311, the safety
Latch 41 can be inserted in the safe block button construction of oversheath group 30 and the safe snap-on 315 of injection putter 311, by injection putter
311, which give buckle, fixes.
As shown in Fig. 2, Fig. 4 and Fig. 6, in this preferred embodiment, the end shape of 311 second bar portion of injection putter 313
The tapered taper buckle convex portion 316 of Cheng Yichao outside dimensions, and with one by the grooving 317 of taper buckle convex portion 316 with being located at
The shell fragment 318 in the outside of grooving 317, there is the pin hole 319 of a connection grooving 317 in shell fragment 318, and form described safe bullet
Button 315.
As shown in Figures 2 and 4, the oversheath group 30 include an outer tube 32, an inner sleeve 33, a push rod tube 34 with
And one 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 be together installed in inside outer tube 32, and the socket ring 15 at the fitting opening 132 of sheath body 13 is connected to the one end of inner sleeve 33
In.The inner sleeve 33 connects corresponding to perforation, the end that inner sleeve 33 has perforation is formed at the soft blocking 133 of flask for medicinal preparations 5
Sealer 12 is touched, 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, and the injection putter 311 is put
In the inner sleeve 33 and push rod tube 34, the end of push rod tube 34 has a buckle end wall 341, on buckle end wall
Formed and the through hole 342 that the safe snap-on 315 of injection putter 311 is worn is provided, and compression spring 310 is provided with buckle end wall 341
The position of end abutment.
The pressing sleeve pipe 35 is to be sheathed on the outside of push rod tube 34 and stretch into outer tube 32, and the pressing sleeve pipe 35 can
Moved axially between outer tube 32 and push rod tube 34, outer tube 32 is stretched out in the one end of pressing sleeve pipe 35 away from needle guard 10
Outside and with a pressing end wall 351, in this preferred embodiment, pressing sleeve pipe 35 inwall forms stopper slot 353, in pushing away
The outer wall of rod bush 34 forms spacing block set 343, and spacing block set 343 is located in stopper slot 353, limits and presses by stopper slot 353
The distance that sleeve pipe 35 is axially movable relative to push rod tube 34, the pressing end wall 351 is formed with perforation 352, the perforation
352 are respectively corresponding to the through hole 342 of push rod tube 34, and the perforation 352 can be by the interior taper hole tapered towards outside dimension, by pushing away
The pressing end wall 351 of the buckle end wall 341 of rod bush 34 and pressing sleeve pipe 35 forms described safe block button and constructed, and pushes away injection
The safe snap-on 315 of bar 311 can pass through the through hole of push rod tube 34, and be arranged in the perforation 352 of pressing sleeve pipe 35, safe bullet
The shell fragment 318 of button 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 insert the safety in safety shield 4
Pin 41 inserts the pin hole 319 of the shell fragment 318 of the safe snap-on 315 of injection putter 311 and stretched into grooving 317 respectively, and then
Push taper buckle convex portion 316 to expand and be snapped in the side of buckle end wall 341 of push rod tube 34, and be in secure localization state.
As shown in Fig. 2 the use situation on syringe of the present invention, syringe of the invention is because being to make syringe needle 11 be sealed
In the situation that syringe needle 11 in the needle guard 10 provided with sealer 12, can be avoided exposed and be contaminated, separately with medicament set group 20
Flask for medicinal preparations 5 is packed, good secured fashion is provided flask for medicinal preparations 5, when syringe is by needle assembly 1, the medicine built with flask for medicinal preparations 5
After agent set group 2, injection propulsion assembly 3 combine with safety shield 4, safety shield 4 can be relied on and inject the safety between propulsion assembly 3
Preventing mechanism, it is ensured that the safety of syringe.
As shown in fig. 7, in use, user must first pull down safety shield 4, make the safety pin in safety shield 4
41 depart from the safe snap-on 315 of injection putter 311, syringe is in the state of injectable.When injection, user must only press
Lower pressing sleeve pipe 35, pressing sleeve pipe 35 is pushed safe snap-on 315 and inside contract and can be solved by the through hole 342 of push rod tube 34
Buckle status, as shown in figure 8, the elastic force to continue using compression spring 310, first ejection injection putter 311, flask for medicinal preparations 5 and inner sleeve
Pipe 33 launches, and the second tip 112 of syringe needle 11 is pierced into soft blocking 51 to the bottle at 5 bottles of ends of flask for medicinal preparations, and is automatically performed nothing
Bubble fills medicament, and the first tip 111 of syringe needle 11 pierces through the soft blocking 133 of needle guard 10 and is pierced into the body of person to be injected
It is interior, and elastic force effect is persistently provided in compression spring 310, and push injection putter 311 and noted the medicament injection in flask for medicinal preparations 5
In the body for the person of penetrating.
, can be to the person of being injected when the syringe needle of the built-in more than two flask for medicinal preparations of syringe and respective numbers of the invention
Injection various medicaments simultaneously, and can apply to the purposes of emergency injection.
As shown in figure 9, after the completion of to be injected, syringe is removed from the person of being injected, is separately sheathed on safety shield 4
The outside of needle guard 10, while by safety pin 41 by the bending of syringe needle 11, and the cover of syringe needle 11 of bending is placed on safety shield 4
Inside, 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, and 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 will all fall
Enter within protection scope of the present invention.
Claims (6)
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, and needle guard includes a set of
Shell, a syringe needle positioning seat and one are socketed ring, form a syringe needle located space in sheath body, sheath body is set in one end of syringe needle located space
There is soft blocking to form blind end, sheath body forms a fitting opening, the installing of syringe needle positioning seat in the other end of syringe needle located space
And can be along sheath body axial displacement in the syringe needle located space of sheath body, syringe needle positioning seat has one end plate portion and one forms in end
The ring flat-plate portion that plate portion outer peripheral edge extends towards one end, forms a space in syringe needle positioning seat, ring flat-plate portion towards sheath body fitting opening,
The syringe needle is inserted in the syringe needle located space, and syringe needle both ends form the first tip and the second tip respectively, in the first tip with
There is a catch, the first tip of syringe needle is pierced into the soft blocking of sheath body, and the second tip of syringe needle passes through between second tip
Syringe needle positioning seat and towards fitting opening, catch are resisted against the end plate of syringe needle positioning seat, and the socket ring is installed in the dress of sheath body
With on opening internal perisporium, the sealer is fixed in the fitting opening of sheath body, syringe needle is sealed in the syringe needle shield provided with sealer
In set；
One medicament set group, it includes a hollow medicine bottle sheath body and one and is mounted on the sheath body end cap of medicine bottle sheath body side, for holding
At least one flask for medicinal preparations is put, and the flask for medicinal preparations corresponds to syringe needle；
One injection propulsion assembly, it includes an oversheath group and at least an injection putter group, oversheath group are sheathed on medicament set
On the outside of group and offer injection putter assembling is set wherein, and oversheath group one end is connected at the fitting opening of needle guard, oversheath
Terminal part of the group away from needle guard constructs with a safe block button, and injection putter group includes an injection putter and a compression bullet
Spring, one end of the injection putter are stretched into flask for medicinal preparations through the sheath body end cap of medicament set group and abut piston, injection putter
The other end is arranged compression spring and end has a safe snap-on, and compression spring both ends abut injection putter and oversheath respectively
Group, enables compression spring to provide injection putter the elastic force towards flask for medicinal preparations direction, and the safe block button construction of oversheath group can block
Detain the safe snap-on of injection putter；
One safety shield, it includes a body and is formed at the safety pin for covering internal and corresponding injection putter quantity, described
Safety shield is the end for removable group being sheathed on oversheath group, safety pin is inserted in the safe block button structure of oversheath group
Make in the safe snap-on with injection putter, injection putter is given into buckle fixes, and the safety shield can be from oversheath group
End remove to transfer again and be sheathed on the outside of needle guard, and with safety pin bending syringe needle, and the pin head cover by bending
Inside safety shield.
2. syringe according to claim 1, it is characterised in that the injection putter includes one first bar portion, one
Two bar portions and an abutting part between the first bar portion and the second bar portion, the second bar portion end form the safe snap-on, pressure
For contracting spring housing on the outside of the second bar portion of injection putter, the first bar portion of injection putter passes through the sheath body end cap of medicament set group,
And the piston abutted in flask for medicinal preparations can be used to stretch into flask for medicinal preparations, compression spring both ends abut respectively the abutting part of injection putter with
On the madial wall of oversheath group, the second bar portion of injection putter end forms one towards the tapered taper buckle convex portion of outside dimension,
And there is a grooving by taper buckle convex portion and the shell fragment on the outside of grooving, the latch in shell fragment with a connection grooving
Hole, form 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
Together it is 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, and injection putter is arranged in inner sleeve and push rod tube,
Push rod tube end has a buckle end wall, is formed on buckle end wall and provides the through hole that the safe snap-on of injection putter is worn, card
End of thread wall provides the position of compression spring end abutment；
The press sleeve pipe sleeve is on the outside of the push rod tube and stretches into outer tube, pressing sleeve pipe can in outer tube and push rod tube it
Between move axially, one end away from needle guard of pressing sleeve pipe is stretched out on the outside of outer tube and with a pressing end wall, presses end wall
Formed with perforation, perforation corresponds to the through hole of push rod tube, the pressing end wall structure of the buckle end wall and pressing sleeve pipe of push rod tube
Constructed into the safe block button, the safe snap-on of injection putter is passed through the through hole of push rod tube, and be arranged in pressing sleeve pipe
Perforation in, the shell fragment of safe snap-on is protruded from outside the perforation of pressing end wall of pressing sleeve pipe, and safety shield can be sheathed on overcoat
For pipe with pressing outside of sleeve, the safety pin in safety shield inserts the pin hole of the shell fragment of the safe snap-on of injection putter respectively
And stretch into grooving, and then push the expansion of taper buckle convex portion and be snapped in the buckle end wall side of push rod tube.
3. syringe according to claim 2, it is characterised in that the perforation be by the interior taper hole tapered towards outside dimension,
The pressing internal surface of sleeve pipe forms stopper slot, and spacing block set is formed in push rod tube outer wall, and spacing block set is located in stopper slot, limits
The distance that position groove limitation pressing sleeve pipe is axially movable relative to push rod tube.
4. syringe according to any one of claim 1 to 3, it is characterised in that the needle assembly have two with
On syringe needle, these syringe needles are installed in needle guard arranged in parallelly.
5. syringe according to any one of claim 1 to 3, it is characterised in that the medicament set group includes a medicine bottle
Sheath body and a sheath body end cap, the medicine bottle sheath body provide the flask for medicinal preparations installing wherein, and 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, by institute
State flask for medicinal preparations and seal up for safekeeping and be fixed in medicament set group.
6. syringe according to claim 4, it is characterised in that the medicament set group includes a medicine bottle sheath body and a sheath body
End cap, medicine bottle sheath body provide the flask for medicinal preparations installing wherein, and medicine bottle sheath body has the perforation that one end corresponds to 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, seals the flask for medicinal preparations up for safekeeping fixation
In in medicament set group.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/000782 WO2014205604A1 (en) | 2013-06-28 | 2013-06-28 | Syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105339027A CN105339027A (en) | 2016-02-17 |
| CN105339027B true CN105339027B (en) | 2018-02-09 |
Family
ID=52140740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380077429.4A Active CN105339027B (en) | 2013-06-28 | 2013-06-28 | Syringe |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105339027B (en) |
| WO (1) | WO2014205604A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT519383B1 (en) * | 2016-10-27 | 2018-09-15 | Pharma Consult Gmbh | Injection device, in particular autoinjector, for the simultaneous delivery of several drugs |
| CN106975126B (en) * | 2017-05-04 | 2023-11-07 | 广东工业大学 | Injection device |
| CA3155836A1 (en) * | 2019-09-19 | 2021-03-25 | Cc Biotechnology Corporation | Injection device with a drug-information providing portion |
| AU2021341801A1 (en) * | 2020-09-08 | 2023-05-25 | Emergent Product Development Gaithersburg Inc. | Autoinjector for administration of medications |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4226235A (en) * | 1979-01-25 | 1980-10-07 | Survival Technology, Inc. | Plural injecting device |
| CZ302178B6 (en) * | 1999-07-27 | 2010-12-01 | Pharma Consult Ges. M. B. H. | Device for automatic injection of liquids |
| CH696423A5 (en) * | 2003-12-18 | 2007-06-15 | Tecpharma Licensing Ag | Automatic injection unit comprises a release element which is joined to the trigger element so that it moves longitudinally together with the trigger element, and is laterally movable relative to it |
| EP1819387A4 (en) * | 2004-12-09 | 2011-11-02 | West Pharm Serv Inc | Breech loaded fixed needle syringe and automatic injection device having the same |
| GB2437922B (en) * | 2006-05-10 | 2010-12-08 | Owen Mumford Ltd | Injection device comprising a window and a shutter element |
| AT506690B1 (en) * | 2008-06-16 | 2009-11-15 | Pharma Consult Ges M B H & Co | INJECTION DEVICE |
-
2013
- 2013-06-28 CN CN201380077429.4A patent/CN105339027B/en active Active
- 2013-06-28 WO PCT/CN2013/000782 patent/WO2014205604A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014205604A1 (en) | 2014-12-31 |
| CN105339027A (en) | 2016-02-17 |
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