CN104857603B - Disposable safety self-breaking injector - Google Patents
Disposable safety self-breaking injector Download PDFInfo
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- CN104857603B CN104857603B CN201510290697.5A CN201510290697A CN104857603B CN 104857603 B CN104857603 B CN 104857603B CN 201510290697 A CN201510290697 A CN 201510290697A CN 104857603 B CN104857603 B CN 104857603B
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- thinned
- spinal plate
- push rod
- elastic
- reinforcement
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Abstract
The invention discloses a kind of disposable safety self-breaking injector, including cylinder, there is push rod in cylinder, push rod is provided with muscle piece, push rod one end is connected with plug, and the rear end of the push rod other end is provided with annular groove, and annular groove rear end is provided with the push rod cup of frangibility, the dome shape with elastic bendable is provided with annular groove elastic spinal plate is thinned, the muscle piece is provided with the reinforcement for preventing that elastic spinal plate contrary flexure is thinned with one end that elastic spinal plate closes on is thinned；The cylinder back-end inwall is provided with the ring-type retaining bulge loop being correspondingly arranged with thinned elastic spinal plate.Elastic spinal plate is thinned the present invention, significantly reduces the thrust during use, makes injection process more comfortable.Brought in order to avoid elastic spinal plate is thinned locked not thorough, elastic spinal plate upper end sets triangle reinforcement, obvious support force so can be formed when thinned elastic spinal plate is to front curve, efficiently and effectively strengthens the locked efficiency of self-destructor, reaches the purpose of thorough self-destruction.
Description
Technical field
The present invention relates to a kind of syringe, more particularly to a kind of disposable safety self-breaking injector.
Background technology
Syringe is the indispensable apparatus of modern medical service health field, presently used to avoid humoral cross from infecting
Syringe is mostly disposable product.But it can often be weighed after this disposable syringe use if artificially do not damaged
It is multiple to use.It is many disposable in order to prevent phenomena such as disposable syringe reuses caused cross-infection, transmission
Thus self-destroyed syringe just arises at the historic moment.The design of most of existing self-destroyed syringe, its self-destructor is made a general survey of before syringe
End, such layout type often limits designing and developing for self-destructor, especially for small dimensions such as insulin, tulases
For volume syringe, the extremely low requirement of its narrow space, liquor residue amount more limits the reasonable setting of self-destructor.Cause
This, in order that self-destroyed syringe simplifies the structure, reduces production process, being advantageous to large-scale production turns into each medicine equipment
The shared vision of enterprise.
To solve the above problems, patent 201410565573.9 discloses a kind of self-destructive syringe, including stack shell, it is described
One end of stack shell is provided with injection port, and the other end is provided with ejector sleeve, and one end that the ejector sleeve fills in stack shell is provided with piston, on the piston
Provided with passage, the passage is covered by one end of rubber stopper, and the rubber stopper is relatively fixed by fixture and piston, institute
Fixture is stated to wrap piston and be less than or equal to note provided with the space of piston activity, the maximum gauge of the cross section of the rubber stopper
The diameter of loophole, the frictional force between the rubber stopper and injection port are more than the frictional force between rubber stopper and fixture.This hair
Bright structure is simple, pass through on piston add detachable rubber stopper design so that syringe after being only used once just
Because losing sealing and self-destruction.
Patent 200810244141.2 discloses a kind of self-destruction syringe, including core bar, overcoat, piston, needle tubing and shield
Set, the front end of core bar are provided with piston, and the core bar containing piston is placed in overcoat, and needle tubing is fixedly installed on the front end of overcoat, needle tubing
Equipped with sheath, wherein：The inwall of overcoat is provided with one of self-destruction boss；Core bar puts self-destruction boss corresponding position and is provided with ring with outer
Groove, it is furnished with retaining card in annular groove, annular groove and the core bar pressed between hand are provided with fracture belt, and the core bar at fracture belt both ends is by connecing
Contact portion.This inventive structure is compact, and self-destruction process is completed by overcoat and core bar.Post-rift most of core bar is stopped after self-destruction
Move back card to be positioned in overcoat, can not exit；Before retaining card does not cross the self-destruction boss of overcoat, core bar can be in overcoat
Free pull, carry out molten medicine operation.But it is in order to reach thorough self-destruction, the purpose for preventing retaining card from easily extracting out, often
Thicker, the corresponding retaining bulge loop of retaining card design is also larger.
Two above patent, no matter rubber stopper push-in injection port process, still thicker retaining card it is convex to be caught in retaining
The process of ring, medical worker are required for increasing strength, will certainly so influence the comfortableness of patient, increase pain.
The content of the invention
To solve the above problems, the invention provides a kind of disposable safety self-breaking injector.Significantly reduce medical worker
Thrust during use, make injection process more comfortable.Meanwhile the purpose for making the thorough self-destruction of syringe is reached.
To reach above-mentioned technique effect, the technical scheme is that：
A kind of disposable safety self-breaking injector, including cylinder, there is push rod in cylinder, push rod is provided with muscle piece, push rod one
End is connected with plug, and the rear end of the push rod other end is provided with annular groove, and annular groove rear end is provided with the push rod cup of frangibility, set in annular groove
There is the dome shape with elastic bendable that elastic spinal plate is thinned, the symmetrical indent in side is formed with inner fovea part before and after elastic spinal plate is thinned,
Elastic spinal plate left and right sides is thinned and symmetrically protrudes the protuberance for being formed with arc；One end that the muscle piece closes on elastic spinal plate is thinned
Provided with the reinforcement for preventing from being thinned elastic spinal plate contrary flexure；The cylinder back-end inwall is provided with and is correspondingly arranged with thinned elastic spinal plate
Ring-type retaining bulge loop.
Further to improve, the both sides for the muscle piece that the protuberance closes on are equipped with reinforcement.
Further to improve, the ring section of the retaining bulge loop is pawl shape.
Further to improve, the thickness of the thinned elastic spinal plate is 0.3mm-1mm；The thickness of the thinned elastic spinal plate
For 0.3mm-1mm；Being thinned has gap between elastic spinal plate and reinforcement, the size in gap is 0.2mm-3mm.
Further to improve, the reinforcement is triangle reinforcement, and triangle reinforcement is from muscle piece outer ledge to muscle
The piece edge adjacent with elastic spinal plate is thinned extends obliquely out.
Further to improve, the reinforcement is rectangular ribs, and rectangular ribs are in muscle piece with elastic spinal plate is thinned
Close on the top of side.
Further to improve, the reinforcement is cylindricality reinforcement, and cylindricality reinforcement is on the outside of muscle piece.
Further to improve, the push rod cup is connected on push rod by easy breakpoint.
Further to improve, the push rod head surface is provided with anti-skid structure, and the anti-skid structure is salient point or pit.
Elastic spinal plate is thinned the present invention, significantly reduces the thrust during medical worker's use, makes injection process more
Add comfortable.Meanwhile the shape that elastic spinal plate is thinned designs the contact area of less thinned elastic spinal plate and retaining bulge loop, further
Alleviate resistance during propulsion.That is brought in order to avoid elastic spinal plate is thinned is locked not thorough, and we are on elastic spinal plate is thinned
End sets corresponding triangle reinforcement, so can form obvious branch when elastic spinal plate being thinned bending forward occurring
Support force, efficiently and effectively strengthen the locked efficiency of self-destructor, reach the purpose of thorough self-destruction.
Brief description of the drawings
Fig. 1 is the locked preceding schematic diagram of the self-destroyed syringe of embodiment 1；
Fig. 2 is the retaining bulge loop of embodiment 1 and the enlarged diagram that elastic spinal plate clamping is thinned；
Fig. 3 is the schematic diagram of push rod when the short axle portion forward direction of elastic spinal plate is thinned in embodiment 1；
Fig. 4 is the schematic diagram of push rod when the long axle portion forward direction of elastic spinal plate is thinned in embodiment 1；
Fig. 5 is the top view that elastic spinal plate is thinned in embodiment 1；
Fig. 6 is the locked rear schematic diagram of the self-destroyed syringe of embodiment 1；
Fig. 7 is locked and then the push rod cup that fractures the schematic diagram of the self-destroyed syringe of embodiment 1；
Fig. 8 is the retaining bulge loop of embodiment 2 and the enlarged diagram that elastic spinal plate clamping is thinned；
Fig. 9 is the cross-sectional view at the reinforcement of embodiment 2；
Figure 10 is the retaining bulge loop of embodiment 3 and the enlarged diagram that elastic spinal plate clamping is thinned；
Figure 11 is the cross-sectional view at the reinforcement of embodiment 3.
Embodiment
Embodiment 1
A kind of disposable safety self-breaking injector as Figure 1-5, including cylinder 1, there are push rod 3, push rod 3 in cylinder 1
Muscle piece 9 is provided with, the one end of push rod 3 is connected with plug 2, and the rear end of the other end of push rod 3 is provided with annular groove, and annular groove rear end is provided with easy
The push rod cup 7 to fracture, annular groove is interior to be thinned elastic spinal plate 6, the muscle piece 9 and thinned bullet provided with the dome shape with elastic bendable
Property the one end closed on of spinal plate 6 be provided with the reinforcement 4 for preventing that the elastic contrary flexure of spinal plate 6 is thinned；The rear end inwall of cylinder 1 be provided with
The ring-type retaining bulge loop 5 that elastic spinal plate 6 is correspondingly arranged is thinned；In the symmetrical indent in side is formed with before and after the thinned elastic spinal plate 6
Recess 10, the elastic left and right sides of spinal plate 6 is thinned and symmetrically protrudes the protuberance 11 for being formed with arc.The muscle piece that the protuberance 11 closes on
9 both sides are equipped with reinforcement 4.The ring section of the retaining bulge loop 5 is pawl shape.Be thinned elastic spinal plate 6 thickness be
0.3mm；Being thinned has gap between elastic spinal plate 6 and reinforcement 4, the size in gap is 0.2mm-3mm.The reinforcement 4 is three
Angular reinforcement, the triangle reinforcement edge adjacent with elastic spinal plate 6 is thinned from the outer ledge of muscle piece 9 to muscle piece 9 is oblique to be prolonged
Stretch.The push rod cup 7 is connected on push rod 3 by easy breakpoint.The surface of push rod cup 7 is provided with anti-skid structure 12, described anti-skidding
Structure is salient point.
In use, push rod 3 is pushed ahead in cylinder 1, elastic spinal plate 6 is thinned and touches retaining bulge loop 5, elastic spine is thinned
The contraction distortion under the pressure of retaining bulge loop 5 of piece 6 by retaining bulge loop 5, is then thinned elastic spinal plate 6 and restored to the original state, after push rod 3
When moving back, pressure flexural deformation of the elastic spinal plate 6 by retaining bulge loop 5 is thinned, now it is anti-to give thinned elastic spinal plate 6 for reinforcement 4
To holding power, prevent that the elastic flexural deformation of spinal plate 6 is thinned, make to be thinned elastic spinal plate 6 can not flexural deformation so as to locked.
As shown in fig. 6, syringe has pushed away and elastic spinal plate 6 is thinned after medicine has been blocked by retaining bulge loop 5, then as shown in fig. 7,
Push rod cup is fractureed, so that push rod 3 can not exit cylinder 1, reaches the purpose of self-destruction.But in original design, such as specially
Profit 200810244141.2 is in order to reach the thorough self-destruction of syringe, the purpose for preventing elastic spinal plate from exiting, often by elastic spine
Thicker, the corresponding retaining bulge loop of piece design is larger, and so medical worker can be gone using larger power in use
Promote push rod to be moved along cylinder, will certainly so influence the comfortableness of patient, increase pain.
In order to prevent such a phenomenon, elastic spinal plate is thinned the present invention, during significantly reducing medical worker's use
Thrust, make injection process more comfortable.Meanwhile as shown in figure 5, the shape that elastic spinal plate is thinned designs less thinned elastic spinal plate
With the contact area of retaining bulge loop, resistance during propulsion is further mitigated.But after elastic spinal plate is thinned, easy contrary flexure is from only
Move back in bulge loop and exit.That is brought in order to avoid elastic spinal plate is thinned is locked not thorough, and elastic spinal plate upper end setting is being thinned in we
Corresponding reinforcement, obvious support force so can be formed when elastic spinal plate being thinned bending forward occurring, is had conscientiously
The locked efficiency of self-destructor is strengthened on effect ground, reaches the purpose of thorough self-destruction.
The retaining bulge loop of the present invention is arranged on the larger part of cylinder back-end relative diameter, the design of one side self-destructor
It can not be limited by cylinder front space is small, on the other hand because barrel front end does not have to installation self-destructor so that low-residual
It is more convenient feasible to measure the exploitation design of syringe, particularly has especially for the low dose of syringe such as insulin, tulase
Profit.Barrel front end head is Rule conehead of standard, meets international standard.The end of push rod, some breakpoints easy to break are provided with, just
Often being taken out using fore-and-aft direction keeps preferable integrality not to be broken when pushing away, after injection, which finishes, realizes self-locking state, finger is slightly
Plus-pressure can be fractureed by easy breakpoint, so that push rod can not reuse, reach the purpose of thorough self-destruction.
Embodiment 2
A kind of disposable safety self-breaking injector as shown in Figure 8 and Figure 9, including cylinder 1, there is push rod 3 in cylinder 1, push away
Bar 3 is provided with muscle piece 9, and the one end of push rod 3 is connected with plug 2, and the rear end of the other end of push rod 3 is provided with annular groove, and annular groove rear end is set
There is the push rod cup 7 of frangibility, being provided with the dome shape with elastic bendable in annular groove is thinned elastic spinal plate 6, and the muscle piece 9 is with subtracting
One end that thin elastic spinal plate 6 closes on is provided with the reinforcement 4 for preventing that the elastic contrary flexure of spinal plate 6 is thinned；Set on the rear end inwall of cylinder 1
There is the ring-type retaining bulge loop 5 being correspondingly arranged with elastic spinal plate 6 is thinned；The symmetrical indent shaping in side before and after the thinned elastic spinal plate 6
There is inner fovea part 10, the elastic left and right sides of spinal plate 6 is thinned and symmetrically protrudes the protuberance 11 for being formed with arc.What the protuberance 11 closed on
The both sides of muscle piece 9 are equipped with reinforcement 4.The ring section of the retaining bulge loop 5 is pawl shape.Be thinned elastic spinal plate 6 thickness be
1mm；Being thinned has gap between elastic spinal plate 6 and reinforcement 4, the size in gap is 0.8mm-2mm.The reinforcement 4 is rectangle
Reinforcement, rectangular ribs are in the top that muscle piece 9 closes on side with elastic spinal plate 6 is thinned.The push rod cup 7 is connected by easy breakpoint
It is connected on push rod 3.The surface of push rod cup 7 is provided with anti-skid structure 12, and the anti-skid structure is salient point.
Embodiment 3
A kind of disposable safety self-breaking injector as shown in Figure 10 and Figure 11, including cylinder 1, there is push rod 3 in cylinder 1,
Push rod 3 is provided with muscle piece 9, and the one end of push rod 3 is connected with plug 2, and the rear end of the other end of push rod 3 is provided with annular groove, annular groove rear end
Push rod cup 7 provided with frangibility, the dome shape with elastic bendable is provided with annular groove and is thinned elastic spinal plate 6, the muscle piece 9 with
One end that elastic spinal plate 6 closes on is thinned and is provided with the reinforcement 4 for preventing that the elastic contrary flexure of spinal plate 6 is thinned；On the rear end inwall of cylinder 1
Provided with the ring-type retaining bulge loop 5 being correspondingly arranged with thinned elastic spinal plate 6；Side is symmetrically interior before and after the thinned elastic spinal plate 6 is recessed into
Shape has inner fovea part 10, and the elastic left and right sides of spinal plate 6 is thinned and symmetrically protrudes the protuberance 11 for being formed with arc.The protuberance 11 closes on
The both sides of muscle piece 9 be equipped with reinforcement 4.The ring section of the retaining bulge loop 5 is pawl shape.The thickness of elastic spinal plate 6 is thinned
For 0.5mm；The thickness of the thinned elastic spinal plate (6) is 0.3mm-1mm；It is thinned between having between elastic spinal plate 6 and reinforcement 4
Gap, the size in gap is 0.5mm-2.5mm.The reinforcement 4 is cylindricality reinforcement, and cylindricality reinforcement is in the outside of muscle piece 9.Institute
Push rod cup 7 is stated to be connected on push rod 3 by easy breakpoint.The surface of push rod cup 7 is provided with anti-skid structure 12, and the anti-skid structure is
Pit.
The description of the above examples is only intended to facilitate the understand of the core idea of the present invention；Meanwhile for the general of this area
Technical staff, according to the thought of the present invention, there will be changes in specific embodiments and applications, in summary,
This specification content should not be construed as limiting the invention.
Claims (9)
1. a kind of disposable safety self-breaking injector, including cylinder (1), cylinder (1) is interior push rod (3), and push rod (3) is provided with muscle
Piece (9), push rod (3) one end are connected with plug (2), it is characterised in that the rear end of push rod (3) other end is provided with annular groove, ring
Groove rear end is provided with the push rod cup (7) of frangibility, and being provided with the dome shape with elastic bendable in annular groove is thinned elastic spinal plate (6),
Be thinned elastic spinal plate (6) before and after the symmetrical indent in side be formed with inner fovea part (10), be thinned elastic spinal plate (6) left and right sides symmetrically protrusion into
Shape has the protuberance (11) of arc；One end that the muscle piece (9) is closed on thinned elastic spinal plate (6), which is provided with, prevents that elastic spine is thinned
The reinforcement (4) of piece (6) contrary flexure；Cylinder (1) rear end inwall is provided with the ring-type being correspondingly arranged with thinned elastic spinal plate (6)
Retaining bulge loop (5).
2. disposable safety self-breaking injector as claimed in claim 1, it is characterised in that the muscle that the protuberance (11) is closed on
The both sides of piece (9) are equipped with reinforcement (4).
3. disposable safety self-breaking injector as claimed in claim 1, it is characterised in that the ring of the retaining bulge loop (5) is cut
Face is pawl shape.
4. disposable safety self-breaking injector as claimed in claim 1, it is characterised in that the thinned elastic spinal plate (6)
Thickness is 0.3mm-1mm；Being thinned has gap between elastic spinal plate (6) and reinforcement (4), the size in gap is 0.2mm-3mm.
5. disposable safety self-breaking injector as claimed in claim 1, it is characterised in that the reinforcement (4) is triangle
Reinforcement, the triangle reinforcement edge adjacent with elastic spinal plate (6) is thinned from muscle piece (9) outer ledge to muscle piece (9) are oblique
Extension.
6. disposable safety self-breaking injector as claimed in claim 1, it is characterised in that the reinforcement (4) adds for rectangle
Strengthening tendons, rectangular ribs are in the top that muscle piece (9) closes on side with elastic spinal plate (6) is thinned.
7. disposable safety self-breaking injector as claimed in claim 1, it is characterised in that the reinforcement (4) adds for cylindricality
Strengthening tendons, cylindricality reinforcement are on the outside of muscle piece (9).
8. disposable safety self-breaking injector as claimed in claim 1, it is characterised in that the push rod cup (7) is by easily broken
Point is connected on push rod (3).
9. disposable safety self-breaking injector as claimed in claim 1, it is characterised in that push rod cup (7) surface is provided with
Anti-skid structure (12), the anti-skid structure are salient point or pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290697.5A CN104857603B (en) | 2015-05-29 | 2015-05-29 | Disposable safety self-breaking injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290697.5A CN104857603B (en) | 2015-05-29 | 2015-05-29 | Disposable safety self-breaking injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104857603A CN104857603A (en) | 2015-08-26 |
| CN104857603B true CN104857603B (en) | 2018-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510290697.5A Active CN104857603B (en) | 2015-05-29 | 2015-05-29 | Disposable safety self-breaking injector |
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| Country | Link |
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| CN (1) | CN104857603B (en) |
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| CN101314063A (en) * | 2008-07-09 | 2008-12-03 | 安徽省天康医疗用品有限公司 | Syringe core bar and application in the syringe |
| CN101444651A (en) * | 2008-12-23 | 2009-06-03 | 安徽省天康医疗用品有限公司 | Auto-disable syringe |
| CN201290968Y (en) * | 2008-11-16 | 2009-08-19 | 冯忠 | Simple self-destruction type syringe |
| CN102327658A (en) * | 2011-10-20 | 2012-01-25 | 柏保东 | Easily-assembled high-safety self-destruction injector |
| CN102371014A (en) * | 2010-08-20 | 2012-03-14 | 江苏康宝医疗器械有限公司 | Self-destruction disposable syringe |
| CN204219529U (en) * | 2014-10-23 | 2015-03-25 | 山东淄博山川医用器材有限公司 | Safe self-breaking syringe |
| EP2851101A1 (en) * | 2012-04-27 | 2015-03-25 | Linfeng Zhang | Needle base retractable-type safe self-locking-type self-destructing syringe |
| CN204307158U (en) * | 2014-12-05 | 2015-05-06 | 常州健诺医疗器材有限公司 | Safe self-breaking syringe |
| CN204699180U (en) * | 2015-05-29 | 2015-10-14 | 江苏康宝医疗器械有限公司 | Disposable safety self-breaking injector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040006315A1 (en) * | 2002-07-08 | 2004-01-08 | Pi-Chang Lo | Syringe structure |
| US20080255524A1 (en) * | 2007-04-11 | 2008-10-16 | Vantex Biotechnology Co., Ltd. | Structure of the syringe cover including the barrel |
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2015
- 2015-05-29 CN CN201510290697.5A patent/CN104857603B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314063A (en) * | 2008-07-09 | 2008-12-03 | 安徽省天康医疗用品有限公司 | Syringe core bar and application in the syringe |
| CN201290968Y (en) * | 2008-11-16 | 2009-08-19 | 冯忠 | Simple self-destruction type syringe |
| CN101444651A (en) * | 2008-12-23 | 2009-06-03 | 安徽省天康医疗用品有限公司 | Auto-disable syringe |
| CN102371014A (en) * | 2010-08-20 | 2012-03-14 | 江苏康宝医疗器械有限公司 | Self-destruction disposable syringe |
| CN102327658A (en) * | 2011-10-20 | 2012-01-25 | 柏保东 | Easily-assembled high-safety self-destruction injector |
| EP2851101A1 (en) * | 2012-04-27 | 2015-03-25 | Linfeng Zhang | Needle base retractable-type safe self-locking-type self-destructing syringe |
| CN204219529U (en) * | 2014-10-23 | 2015-03-25 | 山东淄博山川医用器材有限公司 | Safe self-breaking syringe |
| CN204307158U (en) * | 2014-12-05 | 2015-05-06 | 常州健诺医疗器材有限公司 | Safe self-breaking syringe |
| CN204699180U (en) * | 2015-05-29 | 2015-10-14 | 江苏康宝医疗器械有限公司 | Disposable safety self-breaking injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104857603A (en) | 2015-08-26 |
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