CN1947808A - Forced self-destruction type disposable injector - Google Patents
Forced self-destruction type disposable injector Download PDFInfo
- Publication number
- CN1947808A CN1947808A CN 200610097575 CN200610097575A CN1947808A CN 1947808 A CN1947808 A CN 1947808A CN 200610097575 CN200610097575 CN 200610097575 CN 200610097575 A CN200610097575 A CN 200610097575A CN 1947808 A CN1947808 A CN 1947808A
- Authority
- CN
- China
- Prior art keywords
- piston
- shell fragment
- sleeve pipe
- type disposable
- disposable injector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
A disposable injector with forced self-destroying function features that its sleeve tube has an elliptical cross-section and a gradually thinned wall, and its piston is composed of a piston rod and a piston head with a cutting knife whose tip is closed to the thin wall.
Description
Technical field:
The present invention relates to injector for medical purpose, particularly a kind of forced self-destruction type disposable injector.
Background technology:
For the cross infection between warding off disease, the authorities of national health care expressly provide that disease treatment must be used disposable syringe.To this, each hospital of China all acts in accordance with it.The disposable syringe that is appeared on the market at present is to attempt to do restriction from syringe construction to re-use, and sums up and gets up mainly can be divided into lock catch type, penetration type, the formula that fractures self-distruction structure.Wherein lock catch type, penetration type need be carried forward vigorously syringe piston rod arrival snapped-in position when injection, perforation position just can destroy syringe; And the formula of fractureing is the weak part of the piston rod of injection back, the former setting that fractures.These breaking-up modes all need operator people for carrying out, if the operator lacks a sense of responsibility or hasty among, just might not do to destroy or destruction not thorough.So stayed the chance of recycling again for illegal retailer, brought the hidden danger that might produce cross infection of disease also for simultaneously the patient of consumption.And existing disposable syringes of self-destroying Mold Making difficulty is big, assembling bothers, causes the price height, is unfavorable for applying.
Summary of the invention:
The present invention is directed to above-mentioned existing problems, innovate, proposed a kind of forced self-destruction type disposable injector from structure, purpose is to make this disposable syringe after injection finishes, and has just obtained thorough destruction, makes anyone all not have the possibility that they are recycled again.
Technical solution of the present invention:
The present invention mainly comprises syringe sleeve, piston push rod.The telescopic cross section ovalize of its syringe, but outer wall is oval and the oval non-same center of circle of inwall, and promptly the thickness of casing wall is extremely thin to the other end gradual change of major diameter from an end of major diameter; Piston push rod is made up of the piston head and the piston rod of split assembling, and its maximum outside diameter and internal surface of sleeve pipe match, and piston head includes cutter, and point of a knife is pressed close to telescopic thin-walled place.
Further technical solution of the present invention is:
Piston head is made up of piston sheet, preceding liner, back liner, shell fragment, supporting cylinder, shell fragment side's plush copper, support column side's plush copper, cutter, piston sheet ovalize, and the periphery that this is oval and the inwall of syringe sleeve match; Preceding liner, back liner fixed piston sheet, the connection tube between the liner passes the center hole of piston sheet, and shell fragment, supporting cylinder are hollow form perpendicular to the back liner between shell fragment and the supporting cylinder, and end all contains square plush copper formation bayonet socket; Cutter embed among shell fragment side's plush copper, and the trend of blade moves towards consistent in telescopic, and its point of a knife is pressed close to the inner wall surface at sleeve pipe thin-walled place; Piston rod is by conical head, the flared joint body, the single piece that push rod and hand push sheet constitute, when piston head and piston rod assembling, conical head can put in the shell fragment of piston body and the hollow cavity that the square plush copper bayonet socket between the supporting mass enters them, the ellipse that the transverse section of piston rod can be and syringe sleeve is coincide in fully, it is consistent with the weak point of internal surface of sleeve pipe ellipse, major diameter that also " ten " word is starlike, cross is drawn.
Beneficial effect of the present invention:
(1) the present invention does not change traditional using method, has just realized thorough self-destruction at injection manipulation, and disposable used component parts does not stay any opportunity that can regain the renovation utilization again.
(2) the present invention changes in the past indivedual medical workers and will consider and want to keep syringe and that injecting liquid drug is intact drawback, thereby the noresidue medicinal liquid, helps patient treatment.
(3) compare with existing disposable syringes of self-destroying, production is simple, price is lower, is beneficial to by doctors and patients to receive, easily popularize.
Description of drawings:
Accompanying drawing 1 is structure of the present invention (inject state) sketch map
Accompanying drawing 2 is sleeve pipe longitudinal profile structural representation of the present invention
Accompanying drawing 3 is sleeve pipe horizontal section structural representation of the present invention
Accompanying drawing 4 is the structural representation of the piston head of piston push rod of the present invention
Accompanying drawing 5 is the structural representation of the piston rod of piston push rod of the present invention
Accompanying drawing 6 is the structural representation of the present invention at suction medicinal liquid state
Accompanying drawing 7 is the structural representation of the present invention's state after injection
The specific embodiment:
As shown in Figure 1, the present invention is made up of sleeve pipe 1, piston push rod 2, Fig. 2, shown in Figure 3 and for example, telescopic inside and outside wall of the present invention is made up of the ellipse of two decentraction, the thickness of the tube wall that forms by the initial edge of an end oval both sides camber line gradual change of major diameter to another termination of major diameter for the thinnest.Piston push rod 2 of the present invention is made up of piston head, piston rod.But Fig. 4 as seen, the piston head 3 of piston push rod is made up of piston sheet 31, preceding plastics liner 32, back plastics liner 33, shell fragment 34, supporting cylinder 35, shell fragment side's plush copper 341, support column side's plush copper 351, cutter 342, cutter embed among shell fragment side's plush copper 341, when non-inject state, cutting point of a knife difference 0.2-0.5 millimeter touches internal surface of sleeve pipe; As seen from Figure 5, the single piece that the piston rod 4 of piston push rod is made of conical head 41, indent draw-in groove 42, flared joint body 43, push rod 44, hand push sheet 45,34 places of flared joint body 43 applying shell fragments are the slope, inclined-plane, and supporting cylinder 35 places that fit are plane.Again as seen from Figure 6, the conical head 41 of piston rod can enter the inner chamber between shell fragment 34 and the support column 35 by the gap between piston head shell fragment side plush copper 341 and the support column side's plush copper 351.
During assembly of the present invention assembling, piston head with cylinder tool jacking sleeve pipe, is inserted sleeve pipe with piston rod again, firmly piston rod front end conical head can be headed into a little in the bayonet socket of two side's plush coppers of piston head rear end, piston rod promptly is stuck, and can not come off.
Below in conjunction with relevant drawings work process of the present invention is described again:
With reference to Fig. 6, the present invention pulls back piston push rod 2 when inhaling medicinal liquid, and conical head is among piston head, and the plush copper of holding shell fragment 34 and supporting cylinder 35 at the bottom of the taper nose cone retreats, and medicinal liquid blows slowly in the scution bush.With reference to Fig. 1, the present invention is when the injection shape, holding piston push rod 2 pushes ahead, so the flared joint body of the conical head of piston rod is advanced forward, because being to push away, the one side of the close shell fragment of flared joint body pulls out shape, piston push rod moves ahead, shell fragment then is forced outwardly expansion, again because the transverse section of sleeve pipe and piston rod all is ellipticity, point of a knife is positioned in the thinnest part of alignment sleeve tube wall all the time, when cutter expand outwardly thereupon, must cut the thinnest part of drawing the cover tube wall, injection is in case finish, whole sleeve pipe damages along thinnest part, piston head deformation, and piston head is again a rubber, plastics, the mixture of metal is to be difficult to be recovered utilization again, whole injection process need not the people for fractureing etc., thereby has reached the goal of the invention that forced self-destruction falls this disposable syringe.
Claims (5)
1, forced self-destruction type disposable injector, comprise sleeve pipe (1), piston push rod (2), it is characterized in that: the cross section ovalize of sleeve pipe (1), and the oval thickness with the oval non-same center of circle of inwall, casing wall of outer wall is extremely thin to the other end gradual change of major diameter from an end of major diameter; Piston push rod (2) is made up of the piston head (3) and the piston rod (4) of split assembling, and the maximum outside diameter and the internal surface of sleeve pipe of piston push rod match, and piston head (3) includes cutter (342), and point of a knife is pressed close to telescopic thin-walled place.
2, forced self-destruction type disposable injector according to claim 1, it is characterized in that: piston head (3) is made up of piston sheet (31), preceding liner (32), back liner (33), shell fragment (34), supporting cylinder (35), shell fragment side's plush copper (341), support column side's plush copper (351), cutter (342), piston sheet ovalize, the periphery that this is oval and the inwall of syringe sleeve match; Preceding liner (32), back liner (33) fixed piston sheet (31), connection tube between the liner passes the center hole of piston sheet (31), shell fragment (34), supporting cylinder (35) are perpendicular to back liner (33), be hollow form between shell fragment and the supporting cylinder, end all contains square plush copper (341,351) and forms bayonet socket; Cutting (342) embeds among shell fragment side's plush copper (341), and when non-inject state, cutting point of a knife difference 0.2-0.5 millimeter touches the internal surface of sleeve pipe surface.
3, forced self-destruction type disposable injector according to claim 2 is characterized in that: the trend of cutter (342) moves towards consistent in sleeve pipe.
4, forced self-destruction type disposable injector according to claim 1, it is characterized in that: the single piece that piston rod (4) is made of conical head (41), indent draw-in groove (42), flared joint body (43), push rod (44), hand push sheet (45), place, flared joint body (43) applying shell fragment (34) position is the slope, inclined-plane, and the supporting cylinder (35) of fitting locates to be the plane.
5, forced self-destruction type disposable injector according to claim 1, it is characterized in that: the transverse section of piston rod (4) can be and the interior fully ellipse that coincide of syringe sleeve, and also " ten " word is starlike, the cross division is not consistent with weak point, the major diameter of internal surface of sleeve pipe ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610097575 CN1947808A (en) | 2006-11-08 | 2006-11-08 | Forced self-destruction type disposable injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610097575 CN1947808A (en) | 2006-11-08 | 2006-11-08 | Forced self-destruction type disposable injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1947808A true CN1947808A (en) | 2007-04-18 |
Family
ID=38017497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610097575 Pending CN1947808A (en) | 2006-11-08 | 2006-11-08 | Forced self-destruction type disposable injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1947808A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133443B (en) * | 2010-01-26 | 2012-11-28 | 福州耕耘专利开发有限公司 | Disposable syringe with self-destruction section cylinder |
| CN107427645A (en) * | 2015-03-27 | 2017-12-01 | 诺和诺德股份有限公司 | Deformable piston packing ring |
-
2006
- 2006-11-08 CN CN 200610097575 patent/CN1947808A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133443B (en) * | 2010-01-26 | 2012-11-28 | 福州耕耘专利开发有限公司 | Disposable syringe with self-destruction section cylinder |
| CN107427645A (en) * | 2015-03-27 | 2017-12-01 | 诺和诺德股份有限公司 | Deformable piston packing ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200966820Y (en) | Compulsive type self-destroyed disposable syringe | |
| CN1947808A (en) | Forced self-destruction type disposable injector | |
| CN201098441Y (en) | Safety self-breaking injector capable of exchanging steel needle seat | |
| CN204671242U (en) | A kind of electronic marrow puncture needle | |
| CN2805796Y (en) | Disposable syringe | |
| CN2801183Y (en) | Disposable needle of injector or transfusion system | |
| CN203154467U (en) | Double-bin injector for anesthesia | |
| CN201481919U (en) | Non-residual self-destruction type disposable syringe | |
| CN201379861Y (en) | Disposable self-destruction injection syringe | |
| CN1063670C (en) | Safety syringe | |
| CN201481911U (en) | Low-trauma puncture needle head | |
| CN219721537U (en) | Vaccine syringe | |
| CN2640497Y (en) | Disposable self-destroying syringe | |
| CN201055572Y (en) | Disposable self-destroyable syringe | |
| CN2507470Y (en) | Residueless self-destroying expendable injector | |
| CN1240448C (en) | Disposable safety self destruction injector | |
| CN201329103Y (en) | Destructing type disposable syringe | |
| CN2693206Y (en) | Improved cerumen hook | |
| CN2724736Y (en) | Self-destroying disposable syringe | |
| CN2605014Y (en) | Self-locking disposable syringe | |
| CN201055573Y (en) | Disposable syringe | |
| CN2483018Y (en) | Needle of injection | |
| CN202179753U (en) | Injection needle | |
| CN2748098Y (en) | Self-destruction disposable syringe | |
| CN2626510Y (en) | Destruct medical syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |