CN204699180U - Disposable safety self-breaking injector - Google Patents
Disposable safety self-breaking injector Download PDFInfo
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- CN204699180U CN204699180U CN201520365985.8U CN201520365985U CN204699180U CN 204699180 U CN204699180 U CN 204699180U CN 201520365985 U CN201520365985 U CN 201520365985U CN 204699180 U CN204699180 U CN 204699180U
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- elasticity
- thinning
- spinal plate
- push rod
- reinforcement
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Abstract
The utility model discloses a kind of disposable safety self-breaking injector, comprise cylindrical shell, push rod is had in cylindrical shell, push rod is provided with muscle sheet, push rod one end is connected with plug, and the rear end of the described push rod other end is provided with annular groove, and annular groove rear end is provided with the push rod cup of frangibility, be provided with the thinning elasticity spinal plate of dome shape with elastic bendable in annular groove, one end that described muscle sheet and thinning elasticity spinal plate close on is provided with the reinforcement preventing the contrary flexure of thinning elasticity spinal plate; Described cylinder back-end inwall is provided with the ring-type retaining bulge loop that arrange corresponding to thinning elasticity spinal plate.This utility model, by thinning for elasticity spinal plate, significantly reduces the thrust in use procedure, makes injection process more comfortable.That brings in order to avoid elasticity spinal plate is thinning is locked not thorough, elasticity spinal plate upper end arranges triangle reinforcement, can form obvious support force when thinning elasticity spinal plate bend forward like this, the locked usefulness of efficiently and effectively strengthening self-destructor, reaches the object of thorough self-destruction.
Description
Technical field
This utility model relates to a kind of syringe, particularly relates to a kind of disposable safety self-breaking injector.
Background technology
Syringe is the indispensable apparatus of modern medical service health field, and for avoiding humoral cross to infect, syringe used is at present mostly disposable product.But, if this disposable syringe does not artificially damage after using, often can be reused.Reuse the phenomenons such as caused cross infection, pathophoresis to stop disposable syringe, many Disposable, self-destroying syringes just arise at the historic moment thus.Make a general survey of existing self-destroyed syringe, its self-destructor great majority design is in syringe front end, such layout type often limits designing and developing of self-destructor, particularly for the small dimension such as insulin, tulase volume syringe, its narrow space, the requirement that liquor residue amount is extremely low more limit the reasonable setting of self-destructor.Therefore, in order to make self-destroyed syringe simplify the structure, reducing production process, being conducive to the shared vision that scale batch production becomes each medical apparatus and instruments enterprise.
For solving the problem, patent 201410565573.9 discloses a kind of self-destructive syringe, comprise stack shell, one end of described stack shell is provided with injection port, the other end is provided with ejector sleeve, one end that described ejector sleeve fills in stack shell is provided with piston, described piston is provided with passage, described passage is covered by one end of rubber stopper, described rubber stopper is relative with piston fixing by fixture, described fixture wraps piston and is provided with the space of piston activity, the maximum gauge of the cross section of described rubber stopper is less than or equal to the diameter of injection port, frictional force between described rubber stopper and injection port is greater than the frictional force between rubber stopper and fixture.The structure of this utility model is simple, by adding the design of detachable rubber stopper on piston, makes syringe just self-destruction because losing sealing after being only used once.
Patent 200810244141.2 discloses a kind of self-destruction syringe, comprise core bar, overcoat, piston, needle tubing and sheath, the front end of core bar is provided with piston, core bar containing piston is placed in overcoat, needle tubing is fixedly installed on the front end of overcoat, needle tubing is furnished with sheath, wherein: the inwall of overcoat is provided with one self-destruction boss; Core bar with put self-destruction boss corresponding position outward and be provided with annular groove, be furnished with retaining card in annular groove, annular groove and be provided with fracture belt by the core bar between hands, the core bar at fracture belt two ends is connected by contact point.This utility model compact conformation, self-destruction process is completed by overcoat and core bar.After self-destruction, post-rift most of core bar is positioned in overcoat by retaining card, cannot exit; Before the self-destruction boss of overcoat do not crossed by retaining card, core bar can in overcoat free pull, carry out molten medicine operation.But it, in order to reach thorough self-destruction, prevents the object that retaining card is easily extracted out, often by also larger for thicker, the corresponding retaining bulge loop of retaining card design.
Above two patents, no matter rubber stopper pushes the process of injection port, and still thicker retaining card snaps in the process of retaining bulge loop, and medical worker needs to strengthen strength, so will certainly affect the comfortableness of patient, increases pain.
Utility model content
For this utility model that solves the problem provides a kind of disposable safety self-breaking injector.Significantly reduce the thrust in medical worker's use procedure, make injection process more comfortable.Meanwhile, the object making the thorough self-destruction of syringe is reached.
For reaching above-mentioned technique effect, the technical solution of the utility model is:
A kind of disposable safety self-breaking injector, comprise cylindrical shell, push rod is had in cylindrical shell, push rod is provided with muscle sheet, push rod one end is connected with plug, and the rear end of the described push rod other end is provided with annular groove, and annular groove rear end is provided with the push rod cup of frangibility, be provided with the thinning elasticity spinal plate of dome shape with elastic bendable in annular groove, one end that described muscle sheet and thinning elasticity spinal plate close on is provided with the reinforcement preventing the contrary flexure of thinning elasticity spinal plate; Described cylinder back-end inwall is provided with the ring-type retaining bulge loop that arrange corresponding to thinning elasticity spinal plate.
Further improvement, before and after described thinning elasticity spinal plate, the symmetrical indent in side is formed with inner fovea part, and thinning elasticity spinal plate left and right sides symmetry protrudes the protuberance being formed with arc.
Further improvement, the both sides of the muscle sheet that described protuberance closes on are equipped with reinforcement.
Further improvement, the ring cross section of described retaining bulge loop is pawl shape.
Further improvement, the thickness of described thinning elasticity spinal plate is 0.3mm-1mm; The thickness of described thinning elasticity spinal plate is 0.3mm-1mm; Have gap between thinning elasticity spinal plate and reinforcement, the size in gap is 0.2mm-3mm.
Further improvement, described reinforcement is triangle reinforcement, triangle reinforcement from muscle sheet outer ledge to the edge oblique extension adjacent with thinning elasticity spinal plate of muscle sheet.
Further improvement, described reinforcement is rectangular ribs, and rectangular ribs is in the top that muscle sheet and thinning elasticity spinal plate close on side.
Further improvement, described reinforcement is cylindricality reinforcement, and cylindricality reinforcement is in outside muscle sheet.
Further improvement, described push rod cup is connected on push rod by easy breakpoint.
Further improvement, described push rod cup surface is provided with anti-skid structure, and described anti-skid structure is salient point or pit.
This utility model, by thinning for elasticity spinal plate, significantly reduces the thrust in medical worker's use procedure, makes injection process more comfortable.Meanwhile, the less thinning elasticity spinal plate of profile design of thinning elasticity spinal plate and the contact area of retaining bulge loop, further mitigate resistance during propelling.That brings in order to avoid elasticity spinal plate is thinning is locked not thorough, we arrange corresponding triangle reinforcement in thinning elasticity spinal plate upper end, so obvious support force can be formed when to occur forward bending for thinning elasticity spinal plate, the locked usefulness of efficiently and effectively strengthening self-destructor, reaches the object of thorough self-destruction.
Accompanying drawing explanation
Fig. 1 is the locked front schematic diagram of embodiment 1 self-destroyed syringe;
Fig. 2 is the enlarged diagram of embodiment 1 retaining bulge loop and the clamping of thinning elasticity spinal plate;
The schematic diagram of push rod when Fig. 3 is the minor axis portion forward of embodiment 1 thinning elasticity spinal plate;
The schematic diagram of push rod when Fig. 4 is the major axis portion forward of embodiment 1 thinning elasticity spinal plate;
Fig. 5 is the top view of the thinning elasticity spinal plate of embodiment 1;
Fig. 6 is the locked rear schematic diagram of embodiment 1 self-destroyed syringe;
Fig. 7 is the schematic diagram of the locked push rod cup that then fractures of embodiment 1 self-destroyed syringe;
Fig. 8 is the enlarged diagram of embodiment 2 retaining bulge loop and the clamping of thinning elasticity spinal plate;
Fig. 9 is the cross sectional representation at embodiment 2 reinforcement place;
Figure 10 is the enlarged diagram of embodiment 3 retaining bulge loop and the clamping of thinning elasticity spinal plate;
Figure 11 is the cross sectional representation at embodiment 3 reinforcement place.
Detailed description of the invention
Embodiment 1
A kind of disposable safety self-breaking injector as Figure 1-5, comprise cylindrical shell 1, push rod 3 is had in cylindrical shell 1, push rod 3 is provided with muscle sheet 9, push rod 3 one end is connected with plug 2, and the rear end of described push rod 3 other end is provided with annular groove, and annular groove rear end is provided with the push rod cup 7 of frangibility, be provided with the thinning elasticity spinal plate 6 of dome shape with elastic bendable in annular groove, one end that described muscle sheet 9 and thinning elasticity spinal plate 6 close on is provided with the reinforcement 4 preventing the contrary flexure of thinning elasticity spinal plate 6; Described cylindrical shell 1 rear end inwall is provided with the ring-type retaining bulge loop 5 that arrange corresponding to thinning elasticity spinal plate 6; Before and after described thinning elasticity spinal plate 6, the symmetrical indent in side is formed with inner fovea part 10, and thinning elasticity spinal plate 6 left and right sides symmetry protrudes the protuberance 11 being formed with arc.The both sides of the muscle sheet 9 that described protuberance 11 closes on are equipped with reinforcement 4.The ring cross section of described retaining bulge loop 5 is pawl shape.The thickness of thinning elasticity spinal plate 6 is 0.3mm; Have gap between thinning elasticity spinal plate 6 and reinforcement 4, the size in gap is 0.2mm-3mm.Described reinforcement 4 is triangle reinforcement, triangle reinforcement from muscle sheet 9 outer ledge to the muscle sheet 9 edge oblique extension adjacent with thinning elasticity spinal plate 6.Described push rod cup 7 is connected on push rod 3 by easy breakpoint.Described push rod cup 7 surface is provided with anti-skid structure 12, and described anti-skid structure is salient point.
During use, push rod 3 is pushed ahead in cylindrical shell 1, thinning elasticity spinal plate 6 touches retaining bulge loop 5, contraction distortion is by retaining bulge loop 5 under the pressure of retaining bulge loop 5 for thinning elasticity spinal plate 6, and then thinning elasticity spinal plate 6 restores to the original state, when push rod 3 retreats, thinning elasticity spinal plate 6 is subject to the pressure flexural deformation of retaining bulge loop 5, now reinforcement 4 gives thinning elasticity spinal plate 6 reverse holding power, stops the flexural deformation of thinning elasticity spinal plate 6, makes thinning elasticity spinal plate 6 cannot flexural deformation thus locked.
As shown in Figure 6, syringe after having pushed away medicine thinning elasticity spinal plate 6 blocked by retaining bulge loop 5, then as shown in Figure 7, push rod cup is fractureed, thus makes push rod 3 can not exit cylindrical shell 1, reach the object of self-destruction.But in original design, if patent 200810244141.2 is in order to reach the thorough self-destruction of syringe, prevent the object that elasticity spinal plate exits, thicker, the corresponding retaining bulge loop often designed by elasticity spinal plate is larger, so medical worker in use can use larger power to go promotion push rod to move along cylindrical shell, so will certainly affect the comfortableness of patient, increase pain.
In order to stop this kind of phenomenon, this utility model, by thinning for elasticity spinal plate, significantly reduces the thrust in medical worker's use procedure, makes injection process more comfortable.Meanwhile, as shown in Figure 5, the less thinning elasticity spinal plate of profile design of thinning elasticity spinal plate and the contact area of retaining bulge loop, further mitigate resistance during propelling.But after elasticity spinal plate is thinning, easy contrary flexure is exited from retaining bulge loop.That brings in order to avoid elasticity spinal plate is thinning is locked not thorough, we arrange corresponding reinforcement in thinning elasticity spinal plate upper end, so obvious support force can be formed when to occur forward bending for thinning elasticity spinal plate, the locked usefulness of efficiently and effectively strengthening self-destructor, reaches the object of thorough self-destruction.
Retaining bulge loop of the present utility model is arranged on the larger part of cylinder back-end relative diameter, the design of self-destructor can not be subject to the restriction that cylindrical shell front space is little on the one hand, on the other hand because barrel front end need not install self-destructor, make the development and Design of low residue syringe more convenient feasible, particularly particularly favourable for the syringe that insulin, tulase etc. are low dose of.Barrel front end head is Rule conehead of standard, meets international standard.The end of push rod, is provided with some breakpoints easy to break, and normal use fore-and-aft direction is taken out when pushing away and kept good integrity to rupture, when injection complete realize self-locking state after, point pressure a little to be fractureed by easy breakpoint, thus push rod cannot be reused, reach the object of thorough self-destruction.
Embodiment 2
A kind of disposable safety self-breaking injector as shown in Figure 8 and Figure 9, comprise cylindrical shell 1, push rod 3 is had in cylindrical shell 1, push rod 3 is provided with muscle sheet 9, push rod 3 one end is connected with plug 2, and the rear end of described push rod 3 other end is provided with annular groove, and annular groove rear end is provided with the push rod cup 7 of frangibility, be provided with the thinning elasticity spinal plate 6 of dome shape with elastic bendable in annular groove, one end that described muscle sheet 9 and thinning elasticity spinal plate 6 close on is provided with the reinforcement 4 preventing the contrary flexure of thinning elasticity spinal plate 6; Described cylindrical shell 1 rear end inwall is provided with the ring-type retaining bulge loop 5 that arrange corresponding to thinning elasticity spinal plate 6; Before and after described thinning elasticity spinal plate 6, the symmetrical indent in side is formed with inner fovea part 10, and thinning elasticity spinal plate 6 left and right sides symmetry protrudes the protuberance 11 being formed with arc.The both sides of the muscle sheet 9 that described protuberance 11 closes on are equipped with reinforcement 4.The ring cross section of described retaining bulge loop 5 is pawl shape.The thickness of thinning elasticity spinal plate 6 is 1mm; Have gap between thinning elasticity spinal plate 6 and reinforcement 4, the size in gap is 0.8mm-2mm.Described reinforcement 4 is rectangular ribs, and rectangular ribs is in the top that muscle sheet 9 and thinning elasticity spinal plate 6 close on side.Described push rod cup 7 is connected on push rod 3 by easy breakpoint.Described push rod cup 7 surface is provided with anti-skid structure 12, and described anti-skid structure is salient point.
Embodiment 3
A kind of disposable safety self-breaking injector as shown in Figure 10 and Figure 11, comprise cylindrical shell 1, push rod 3 is had in cylindrical shell 1, push rod 3 is provided with muscle sheet 9, push rod 3 one end is connected with plug 2, and the rear end of described push rod 3 other end is provided with annular groove, and annular groove rear end is provided with the push rod cup 7 of frangibility, be provided with the thinning elasticity spinal plate 6 of dome shape with elastic bendable in annular groove, one end that described muscle sheet 9 and thinning elasticity spinal plate 6 close on is provided with the reinforcement 4 preventing the contrary flexure of thinning elasticity spinal plate 6; Described cylindrical shell 1 rear end inwall is provided with the ring-type retaining bulge loop 5 that arrange corresponding to thinning elasticity spinal plate 6; Before and after described thinning elasticity spinal plate 6, the symmetrical indent in side is formed with inner fovea part 10, and thinning elasticity spinal plate 6 left and right sides symmetry protrudes the protuberance 11 being formed with arc.The both sides of the muscle sheet 9 that described protuberance 11 closes on are equipped with reinforcement 4.The ring cross section of described retaining bulge loop 5 is pawl shape.The thickness of thinning elasticity spinal plate 6 is 0.5mm; The thickness of described thinning elasticity spinal plate (6) is 0.3mm-1mm; Have gap between thinning elasticity spinal plate 6 and reinforcement 4, the size in gap is 0.5mm-2.5mm.Described reinforcement 4 is cylindricality reinforcement, and cylindricality reinforcement is in outside muscle sheet 9.Described push rod cup 7 is connected on push rod 3 by easy breakpoint.Described push rod cup 7 surface is provided with anti-skid structure 12, and described anti-skid structure is pit.
The explanation of above example just understands core concept of the present utility model for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. a disposable safety self-breaking injector, comprise cylindrical shell (1), push rod (3) is had in cylindrical shell (1), push rod (3) is provided with muscle sheet (9), push rod (3) one end is connected with plug (2), it is characterized in that, the rear end of described push rod (3) other end is provided with annular groove, annular groove rear end is provided with the push rod cup (7) of frangibility, be provided with the thinning elasticity spinal plate (6) of dome shape with elastic bendable in annular groove, one end that described muscle sheet (9) and thinning elasticity spinal plate (6) are closed on is provided with the reinforcement (4) preventing the contrary flexure of thinning elasticity spinal plate (6); Described cylindrical shell (1) rear end inwall is provided with the ring-type retaining bulge loop (5) that arrange corresponding to thinning elasticity spinal plate (6).
2. disposable safety self-breaking injector as claimed in claim 1, it is characterized in that, before and after described thinning elasticity spinal plate (6), the symmetrical indent in side is formed with inner fovea part (10), and thinning elasticity spinal plate (6) left and right sides symmetry protrudes the protuberance (11) being formed with arc.
3. disposable safety self-breaking injector as claimed in claim 2, it is characterized in that, the both sides of the muscle sheet (9) that described protuberance (11) closes on are equipped with reinforcement (4).
4. disposable safety self-breaking injector as claimed in claim 1, it is characterized in that, the ring cross section of described retaining bulge loop (5) is pawl shape.
5. disposable safety self-breaking injector as claimed in claim 1, it is characterized in that, the thickness of described thinning elasticity spinal plate (6) is 0.3mm-1mm; Have gap between thinning elasticity spinal plate (6) and reinforcement (4), the size in gap is 0.2mm-3mm.
6. disposable safety self-breaking injector as claimed in claim 1, it is characterized in that, described reinforcement (4) is triangle reinforcement, triangle reinforcement from muscle sheet (9) outer ledge to muscle sheet (9) the edge oblique extension adjacent with thinning elasticity spinal plate (6).
7. disposable safety self-breaking injector as claimed in claim 1, it is characterized in that, described reinforcement (4) is rectangular ribs, and rectangular ribs is in the top that muscle sheet (9) and thinning elasticity spinal plate (6) close on side.
8. disposable safety self-breaking injector as claimed in claim 1, it is characterized in that, described reinforcement (4) is cylindricality reinforcement, and cylindricality reinforcement is in muscle sheet (9) outside.
9. disposable safety self-breaking injector as claimed in claim 1, it is characterized in that, described push rod cup (7) is connected on push rod (3) by easy breakpoint.
10. disposable safety self-breaking injector as claimed in claim 1, it is characterized in that, described push rod cup (7) surface is provided with anti-skid structure (12), and described anti-skid structure is salient point or pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365985.8U CN204699180U (en) | 2015-05-29 | 2015-05-29 | Disposable safety self-breaking injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365985.8U CN204699180U (en) | 2015-05-29 | 2015-05-29 | Disposable safety self-breaking injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204699180U true CN204699180U (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520365985.8U Withdrawn - After Issue CN204699180U (en) | 2015-05-29 | 2015-05-29 | Disposable safety self-breaking injector |
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| CN (1) | CN204699180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104857603A (en) * | 2015-05-29 | 2015-08-26 | 江苏康宝医疗器械有限公司 | Disposable safe self-destruction injection syringe |
-
2015
- 2015-05-29 CN CN201520365985.8U patent/CN204699180U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104857603A (en) * | 2015-05-29 | 2015-08-26 | 江苏康宝医疗器械有限公司 | Disposable safe self-destruction injection syringe |
| CN104857603B (en) * | 2015-05-29 | 2018-01-05 | 江苏康宝医疗器械有限公司 | Disposable safety self-breaking injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151014 Effective date of abandoning: 20180105 |
|
| AV01 | Patent right actively abandoned |