CN103877647A - Disposable prefilled auto-disable syringe - Google Patents
Disposable prefilled auto-disable syringe Download PDFInfo
- Publication number
- CN103877647A CN103877647A CN201410047283.5A CN201410047283A CN103877647A CN 103877647 A CN103877647 A CN 103877647A CN 201410047283 A CN201410047283 A CN 201410047283A CN 103877647 A CN103877647 A CN 103877647A
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- Prior art keywords
- entry needle
- protective sleeve
- piston
- twolip
- syringe
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Abstract
The invention relates to a disposable prefilled auto-disable syringe. The disposable prefilled auto-disable syringe comprises a syringe needle protecting sleeve, a double-blade syringe needle, a needle seat and a barrel with prefilled liquid medicine, wherein the double-blade syringe needle is sealed by the syringe needle protecting sleeve; the syringe needle protecting sleeve is connected to the front end of the barrel via the needle seat; an opening is formed in the rear end of the barrel; a piston is arranged in an inner cavity of the barrel; the outward end of the piston is provided with a connecting seat or a connecting counter bore which is in inserted connection with the syringe needle protecting sleeve correspondingly; or the outward end of the piston and the syringe needle protecting sleeve are provided with threaded structures which are in threaded connection with each other. The disposable prefilled auto-disable syringe is simple in structure, is disposable, is used conveniently, is low in cost, and cannot be repeatedly used; and appropriate storage and high use ratio of the liquid medicine can be effectively ensured.
Description
Technical field
The present invention relates to a kind of syringe, is disposable pre-fill self-destruction syringe specifically.
Background technology
Syringe is a kind of common medical instruments, formed by the foraminate syringe of front end band and the piston core bar that matches, by piston core bar by syringe inner liquid medicine outwards injection or by aperture to drawing liquid in syringe.Traditional all-glass syringe and plastic injector for temporary use, in use, when aspirating or push medicinal liquid by entry needle, medicinal liquid transfer in medicine bottle or bag always exists residual, cannot utilize completely, especially a small amount of, valuable medicinal liquid, easily causes liquid waste, and there is dosage deficiency, affect drug effect and therapeutic effect.
The existing Prefilled syringe that is 200420150499.6 as the patent No., at the direct splendid attire medicinal liquid of syringe inner chamber, has improved medicinal liquid utilization rate, reduce liquid waste, reduced use cost, be convenient to destruction and management after once using, avoid reusing, reduced pollution.But its syringe needle pin hole is communicated with glass needle tube inner chamber, in during this syringe is produced extremely use, syringe needle contacts with medicinal liquid all the time, for the special medicinal liquid of part, there is the hidden danger of corroding syringe needle, affecting medicine liquid ingredient, safety in utilization and scope of application all effected, be 201180017732.6 disclosed pre-encapsulated injectors just like the patent No. again, the obturator that is formed with sealed container interior in medical liquid container inside and can slides in inside, by press section forward when distolateral pressing, after the other end of two scalp acupunctures and the internal communication of medical liquid container, pin support is connected to obturator, its base end side to medical liquid container is slided, and chimeric with medical liquid container, can in urceolus, move, puncture needle after using can be drawn in and is accommodated in urceolus thus, the contact problems of its medicinal liquid that efficiently solves syringe needle and pre-fill in the time not using, but press section slidably connects in infinite place between urceolus and medical liquid container in the time not using, transport at syringe, take in process, to the extruding of press section, collision all easily causes medical liquid container to slide to syringe needle, still there is the hidden danger that is by mistake communicated with syringe needle and medical liquid container.
And said syringe has all been equipped with push rod and has been similar to the press section of push rod, push rod or press section exceed syringe, have increased syringe entire length, are not easy to transportation, store.
Summary of the invention
For above-mentioned deficiency of the prior art, the invention provides a kind of simple in structure, disposable easy to use, cost is low, avoids reusing, and can effectively guarantee the appropriate preservation of medicinal liquid and the disposable pre-fill self-destruction syringe compared with high usage.
The technical solution used in the present invention is: a kind of disposable pre-fill self-destruction syringe; comprise the cylindrical shell of entry needle protective sleeve, twolip entry needle, needle stand and pre-liquid drug; entry needle protective sleeve encapsulation twolip entry needle is connected in barrel front end through needle stand; cylinder back-end opening and its inner chamber are provided with piston; its technical characterstic be described piston the Connection Block that is provided with grafting corresponding to entry needle protective sleeve towards outer end or connect counterbore, or piston be provided with towards outer end and entry needle protective sleeve the helicitic texture that mutual screw thread spins.
Further, the port, rear end of described cylindrical shell is provided with the cutting ferrule for cross-under the entry needle protective sleeve that leads.
Further, on the perisporium of described Connection Block, be evenly provided with more than twice slotting stupefied, on the inwall of entry needle protective sleeve opening, be evenly provided with above corresponding the pegging graft of twice and insert stupefied slot.
Further, described barrel front end opening, seal cover pressing sealing gasket encapsulation barrel front end opening, described needle stand is connected on seal cover.
Further, on described seal cover outer wall, be provided with multi-channel card platform along twolip entry needle direction, needle stand inwall is provided with draw-in groove, and draw-in groove is socketed on seal cover and is twolip entry needle along twolip entry needle direction and does not contact sealing gasket or twolip injection cushion and wear sealing gasket and be communicated to cylinder lumen state with needle stand.
Again further, on described syringe and/or piston and/or entry needle protective sleeve, be coated with lucifuge coating.
Compared with prior art, advantage of the present invention is: piston is towards outer end without push rod, and the cylindrical shell of piston end is without overhanging structure, and syringe entire length reduces, and is conducive to transportation and stores, and can avoid mistake push piston, improves medicinal liquid storage security; In the time that needs push medicinal liquid, unload entry needle protective sleeve by Connection Block or connect counterbore grafting piston, insert the stupefied slot that plugs together, coordinate cutting ferrule guiding entry needle protective sleeve, promotion piston, pushes and stablizes, and liquor charging is even, liquor charging amount is controlled, and in the time of reverse withdrawing entry needle protective sleeve, the slot of entry needle protective sleeve is deviate to insert stupefied, and piston is withdrawing oppositely, stop the reusable possibility of syringe, be conducive to use safety and sanitation; On the twice Ka Tai of needle stand on seal cover, realizing secondary fixes, the fixing needle stand of outer one-level is connected with seal cover, when interior one-level is fixing, twolip entry needle moves with needle stand the pre-perfusion liquid that puncture through seal pad is communicated with tube inner chamber, needle stand, seal cover and cylindrical shell are fixed, syringe construction is stable, can effectively avoid contacting of in the time not using syringe needle and medicinal liquid, further improve medicinal liquid storage security and use safety and sanitation; On the syringe of light-permeable and/or piston and/or entry needle protective sleeve, be coated with lucifuge coating, for the medicinal liquid that must keep in Dark Place, applied widely.
The present invention by without push-rod piston, can replace push rod and piston to be only pushing away and not draw the entry needle protective sleeve and the cylindrical shell that are connected to form; fitted seal lid two-stage is fixedly connected with the needle stand of twolip entry needle and realizes used time twolip entry needle cross-under connection cylinder lumen; it is simple in structure; disposable easy to use, cost is low; avoid reusing; can effectively guarantee the appropriate preservation of medicinal liquid and compared with high usage, the scope of application is wide.
Accompanying drawing explanation
Fig. 1 is non-working condition structural representation of the present invention.
Fig. 2 is using state structural representation of the present invention.
In figure: cylindrical shell 1, piston 2, Connection Block 21, insert stupefied 22, cutting ferrule 3, sealing gasket 4, seal cover 5, the first card platforms 51, the second card platforms 52, needle stand 6, draw-in groove 61, twolip entry needle 7, entry needle protective sleeve 8, slot 81.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Shown in Fig. 1, a kind of disposable pre-fill self-destruction syringe comprises cylindrical shell 1, piston 2, cutting ferrule 3, sealing gasket 4, seal cover 5, needle stand 6, twolip entry needle 7 and entry needle protective sleeve 8.Cylindrical shell 1 front and back ends opening, seal cover 5 pressing sealing gaskets 4 encapsulate cylindrical shell 1 front opening, on seal cover 5 outer walls, be provided with first and second card platform 51,52 along cylindrical shell 1 direction, needle stand 6 inwalls are provided with draw-in groove 61, on needle stand 6, connect twolip entry needle 7, draw-in groove 61 is socketed on and on seal cover 5 first card platforms 51, is twolip entry needle 7 and does not contact sealing gasket 4 states with needle stand 6; Entry needle protective sleeve 8 encapsulates twolip entry needle 7 and is connected on seal cover 5 or needle stand 6; Cylindrical shell 1 rear end inner port is provided with cutting ferrule 3, cylindrical shell 1 inner chamber is provided with the piston 2 of the pre-perfusion liquid of encapsulation, piston 2 is provided with Connection Block 21 towards outer end, on the perisporium of Connection Block 21, be evenly provided with more than twice slotting stupefied 22, on the inwall of entry needle protective sleeve 8 openings, be evenly provided with above corresponding the pegging graft of twice and insert stupefied 22 slot 81; On syringe 1 and/or piston 2 and/or entry needle protective sleeve 8, be coated with lucifuge coating.
In Fig. 2, draw-in groove 61 is socketed on and on seal cover 5 second card platforms 52, is twolip entry needle 7 and inserts and wear sealing gasket 4 and be communicated to cylindrical shell 1 inner chamber state with needle stand 6; Opening inwall slot 81 correspondences of entry needle protective sleeve 8 plug together slotting stupefied 22 towards on outer end Connection Block 21 perisporiums of piston 2, by promote entry needle protective sleeve 8 through piston 2 by interior cylindrical shell 1 pre-perfusion liquid through the extrapolated realization injection of twolip entry needle 7.
Can being arranged to Connection Block towards outer end or connecting counterbore or helicitic texture of piston in the present invention, Connection Block or connect counterbore and can prevent the piston of falling withdrawing, helicitic texture connects and is more conducive to stable propelling movement and injects; In above-described embodiment, pre-perfusion liquid is encapsulated by seal cover pressing sealing gasket in addition, in order to guarantee to store quality, sealing gasket effect is better, as simplify structure can be by seal cover and sealing gasket integrator, can realize equally twolip entry needle puncture through seal lid be communicated with cylinder lumen.
Claims (6)
1. a disposable pre-fill self-destruction syringe; comprise the cylindrical shell of entry needle protective sleeve, twolip entry needle, needle stand and pre-liquid drug; entry needle protective sleeve encapsulation twolip entry needle is connected in barrel front end through needle stand; cylinder back-end opening and its inner chamber are provided with piston; it is characterized in that: the Connection Block that is provided with grafting corresponding to entry needle protective sleeve towards outer end of described piston or connect counterbore, or piston be provided with towards outer end and entry needle protective sleeve the helicitic texture that mutual screw thread spins.
2. disposable pre-fill self-destruction syringe according to claim 1, is characterized in that: the port, rear end of described cylindrical shell is provided with the cutting ferrule for cross-under the entry needle protective sleeve that leads.
3. disposable pre-fill self-destruction syringe according to claim 1; it is characterized in that: on the perisporium of described Connection Block, be evenly provided with more than twice slotting stupefied, on the inwall of entry needle protective sleeve opening, be evenly provided with above corresponding the pegging graft of twice and insert stupefied slot.
4. disposable pre-fill self-destruction syringe according to claim 1, is characterized in that: described barrel front end opening, and seal cover pressing sealing gasket encapsulation barrel front end opening, described needle stand is connected on seal cover.
5. disposable pre-fill self-destruction syringe according to claim 4, it is characterized in that: on described seal cover outer wall, be provided with multi-channel card platform along twolip entry needle direction, needle stand inwall is provided with draw-in groove, and draw-in groove is socketed on seal cover and is twolip entry needle along twolip entry needle direction and does not contact sealing gasket or twolip injection cushion and wear sealing gasket and be communicated to cylinder lumen state with needle stand.
6. according to the arbitrary described disposable pre-fill self-destruction syringe of claim 1-5, it is characterized in that: on described cylindrical shell and/or piston and/or entry needle protective sleeve, be coated with lucifuge coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047283.5A CN103877647A (en) | 2014-02-11 | 2014-02-11 | Disposable prefilled auto-disable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047283.5A CN103877647A (en) | 2014-02-11 | 2014-02-11 | Disposable prefilled auto-disable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103877647A true CN103877647A (en) | 2014-06-25 |
Family
ID=50946978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410047283.5A Pending CN103877647A (en) | 2014-02-11 | 2014-02-11 | Disposable prefilled auto-disable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103877647A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109011027A (en) * | 2018-08-09 | 2018-12-18 | 中国人民解放军总医院 | Hemostat propeller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2865372A (en) * | 1957-11-18 | 1958-12-23 | Pfizer & Co C | Hypodermic syringe |
| US4664655A (en) * | 1986-03-20 | 1987-05-12 | Norman Orentreich | High viscosity fluid delivery system |
| CN103068423A (en) * | 2010-08-12 | 2013-04-24 | 科维蒂恩有限合伙公司 | Single use device for delivery of cartridge drugs |
| CN203724561U (en) * | 2014-02-11 | 2014-07-23 | 江苏治宇医疗器材有限公司 | Disposable pre-filling and self-destruction type injector |
-
2014
- 2014-02-11 CN CN201410047283.5A patent/CN103877647A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2865372A (en) * | 1957-11-18 | 1958-12-23 | Pfizer & Co C | Hypodermic syringe |
| US4664655A (en) * | 1986-03-20 | 1987-05-12 | Norman Orentreich | High viscosity fluid delivery system |
| CN103068423A (en) * | 2010-08-12 | 2013-04-24 | 科维蒂恩有限合伙公司 | Single use device for delivery of cartridge drugs |
| CN203724561U (en) * | 2014-02-11 | 2014-07-23 | 江苏治宇医疗器材有限公司 | Disposable pre-filling and self-destruction type injector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109011027A (en) * | 2018-08-09 | 2018-12-18 | 中国人民解放军总医院 | Hemostat propeller |
| CN109011027B (en) * | 2018-08-09 | 2023-10-20 | 中国人民解放军总医院 | Hemostatic agent propeller |
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| 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 |
Application publication date: 20140625 |