CN107569747A - A kind of disposable injection device - Google Patents
A kind of disposable injection device Download PDFInfo
- Publication number
- CN107569747A CN107569747A CN201710871333.5A CN201710871333A CN107569747A CN 107569747 A CN107569747 A CN 107569747A CN 201710871333 A CN201710871333 A CN 201710871333A CN 107569747 A CN107569747 A CN 107569747A
- Authority
- CN
- China
- Prior art keywords
- injection needle
- steel wire
- spring
- reclaiming chamber
- tubular cylinder
- 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.)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of disposable injection device, pushing ram and injection needle including tubular cylinder, with reclaiming chamber, injection needle can be recycled to inside injection device by the disposable injection device automatically after injection, can prevent that disposable injection device from being reused and people's hidden danger is stabbed in injection needle recovery elimination.
Description
Technical field
The invention belongs to technical field of medical equipment, specifically a kind of disposable injection device.
Background technology
Injection device is one of equipment indispensable in medical field, in order to prevent the reuse of injection device from causing
Patient infects mutually, the application of disposable injection device it is more and more extensive, disposable injection device after use, by national policy
Need to destroy, but reused the recovery of disposable injection device the purpose of some criminals are to make profit, to people's
Health care belt carrys out great hidden danger；Meanwhile disposable injection device is exposed on the external using often injection needle is naked after discarding, enter marketing
When ruining, the injection needle that operating personnel are often exposed is stabbed, and courses of infection can be also caused when serious.
The content of the invention
Goal of the invention：The purpose of the present invention is in view of the shortcomings of the prior art, there is provided a kind of disposable injection device, injection
After injection needle can be recycled to inside injection device automatically, can prevent that disposable injection device from reusing and injection needle
People's hidden danger is stabbed in head recovery elimination.
Technical scheme：To achieve the above object, the present invention provides a kind of disposable injection device, including including tubular cylinder, band
There are the pushing ram and injection needle of reclaiming chamber, one end of the tubular cylinder is provided with free open, and is provided with ear, is used for
Tubular cylinder is held on, the other end is closed in the handle part of injection needle, and the pushing ram with reclaiming chamber is justified from the tubulose
The free open of cylinder stretches into and can be advanced into the bottom of the other end.The pushing ram, which stretches into tubular cylinder one end, round platform projection,
Round platform projection middle opening, reclaiming chamber is provided with, spring is provided with the reclaiming chamber, spring one end is connected to reclaiming chamber bottom
Portion, one end are connected with hook, are connected with catch in hook and spring spiral part, catch is connected to reclaiming chamber by laser welding
Opening, now spring be in extended state, the hook forms for two steel wire welds, and a steel wire one end is connected to bullet
Spring, the other end and another steel wire weld are at an acute angle between two steel wires, and can be under external force close to simultaneously during two steel wire stress
Hold together, recover at an acute angle between two steel wires when external force disappears；The tubular cylinder blind end is provided with the handle part of injection needle,
Including grasping claw and dome, grasping claw is the symmetrical knot for being used to hold on injection needle extended by tubular cylinder blind end
Structure, be provided with grasping claw semicircle matrix circular arc portion be used for clamp the injection needle with hemisphere jut, noted so as to fix
Syringe needle is penetrated, dome is cylindrical tube, and the one end open other end is closed, and blind end is provided with circular hole, and dome is coated on outside handle part,
Dome openend is connected to tubular cylinder blind end by ultrasonic bonding mode；Injection needle passes through dome blind end circular hole,
There is sealing ring between injection needle and dome blind end circular hole；The injection needle is provided with ball bumps by end is held, spherical convex
Cylindrical tube is connected with rising, cylindrical tube opening is provided with steel wire, is attached between steel wire and cylindrical tube by welding；Institute
When stating pushing ram and being pushed into the bottommost of tubular cylinder, the hook is through steel wire on injection needle, and round platform is raised on pushing ram
Grasping claw is extruded, distance increases between making two grasping claw, and injection needle departs from grasping claw, injection needle cylinder pipeline section extruding catch
Catch is set to come off, spring is bounced back in the presence of itself power, and steel wire on injection needle is hooked on spring, drives injection needle
First is retracted into reclaiming chamber.
Preferably, the steel wire screen distance be more than hook two steel wires close up after most width from, and less than hook not by external force
Maximum open distance under squeezed state.
Preferably, after reclaiming chamber opening carries out laser welding, pulling-out force 40-50N, spring is reclaiming the catch
Elastic force is 10-15N after being stretched in chamber.
Beneficial effect：A kind of disposable injection device of the present invention, after terminating, spring contraction in reclaiming chamber, spring
The hook of upper connection hooks steel wire on injection needle, drives injection needle to enter reclaiming chamber, realizes the recovery of injection needle, together
When disposable injection device internal structure destroy, can not be used, prevent the disposable injection device and be reused
Possibility.
Brief description of the drawings
Fig. 1, the disposable injection device structural representation；
Fig. 2, the disposable injection device reclaiming chamber structural representation；
Fig. 3, the disposable injection device handle part structural representation；
Fig. 4, the disposable injection device hook enter injection needle internal procedure schematic diagram；
Fig. 5, the disposable injection device catch are extruded process schematic；
Fig. 6, the disposable injection device catch come off process schematic；
Fig. 7, the disposable injection device injection needle are recycled to reclaiming chamber process schematic；
Reference numerals list：1st, tubular cylinder, 2, pushing ram, 3, reclaiming chamber, 4, injection needle, 5, rubber sleeve, 6, dome, 7, close
Seal, 11, grasping claw, 12, ear, 31, spring, 32, hook, 33, round platform, 34 catch, 41, steel wire.
Embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following embodiments are only
For illustrating the present invention rather than limitation the scope of the present invention.It should be noted that the word " preceding " used below in description,
" rear ", "left", "right", "up" and "down" refer to the direction in accompanying drawing, and word " interior " and " outer " refer respectively to direction or remote
From the direction of particular elements geometric center.
The disposable injection device as shown in Figure 1, including the pushing ram 2 including tubular cylinder 1, with reclaiming chamber 3
With injection needle 4, one end of the tubular cylinder 1 is provided with free open, and is provided with ear 12, for holding on tubulose circle
Cylinder 1, the other end are closed in the handle part of injection needle 4, the pushing ram 2 with reclaiming chamber 3 from the tubular cylinder 1 oneself
Stretched into by opening and the bottom of the other end can be advanced into, pushing ram 2 stretches into cladding rubber sleeve 5 outside the one end of tubular cylinder 1, uses
In being sealed.
Pushing ram 2 as shown in Figure 2, which stretches into the one end of tubular cylinder 1, has round platform 33 raised, 33 raised middle opening of round platform, sets
There is reclaiming chamber 3, spring 31 is provided with the reclaiming chamber 3, the one end of spring 31 is connected to the bottom of reclaiming chamber 3, and one end is connected with extension
Hook 32, link up with 32 and the spiral part of spring 31 and be connected with catch 34, catch 34 is connected to reclaiming chamber 3 by laser welding and is open
Place, the pulling-out force after catch 34 welds be 45N, and now spring 31 is in extended state, and the elastic force of the stretching of spring 31 is 12N, institute
It is that two steel wire welds form to state hook 32, and a steel wire one end is connected to spring 31, the other end and another steel wire weld, two
It is at an acute angle between steel wire, and close under external force can close up during two steel wire stress, when external force disappears between two steel wires
Recover at an acute angle, single steel wire diameter 0.2mm, it is 0.4mm that two steel wires, which close up Breadth Maximum, after welding.
The blind end of tubular cylinder 1 as shown in Figure 3 is provided with the handle part of injection needle, including grasping claw 11 and dome 6, holds
Pawl 11 is the symmetrical structure for being used to hold on injection needle 4 extended by the blind end of tubular cylinder 1, is set in grasping claw 11
Have semicircle matrix circular arc portion be used for clamp carry hemisphere jut injection needle 4, so as to fix injection needle 4, dome 6 is
Cylindrical tube, the closing of the one end open other end, blind end are provided with circular hole, and dome 6 is coated on outside handle part, the openend of dome 6
The blind end of tubular cylinder 1 is connected to by ultrasonic bonding mode；Injection needle 4 passes through the blind end circular hole of dome 6, injection needle
There is sealing ring 7 between 4 and the blind end circular hole of dome 6；The injection needle 4 is provided with ball bumps by end is held, in ball bumps
Cylindrical tube is connected with, cylindrical tube opening is provided with steel wire 41, is attached between steel wire 41 and cylindrical tube by welding, steel
The aperture 0.6mm of silk screen 41.
When promoting pushing ram 2 soon to bottom as shown in Figure 4, hook 32 initially enters the mesopore of steel wire 41, and is extruded by hole,
Two steel wires gradually close up；As shown in figure 5, continue to press on pushing ram 2, hook 32 completely into the pipe of injection needle 4 inside, hook
32 are not extruded now by external force, and two steel wires, which flick, to be recovered to initial state at an acute angle, meanwhile, round platform 33 is raised on pushing ram 2
Grasping claw 11 is extruded, distance increases between making two grasping claw 11, and injection needle 4 departs from grasping claw 11.As shown in fig. 6, pushing ram 2
When being pushed into the bottommost of tubular cylinder 1, the cylinder pipeline section of injection needle 4 extruding catch 34 makes catch 34 come off, and spring 31 is at itself
Bounced back in the presence of elastic force, because two steel wire extended distances are more than the aperture of steel wire 41 on hook 32, hook 32 hooks injection needle
Steel wire 41 on first 4.As shown in fig. 7, injection needle 4 is retracted into reclaiming chamber 3 under the effect of the elastic force of spring 31.
Technological means disclosed in scheme of the invention is not limited only to the technological means disclosed in above-mentioned embodiment, in addition to by
Above technical characteristic is combined formed technical scheme.
Claims (3)
1. a kind of disposable injection device, including tubular cylinder, pushing ram and injection needle with reclaiming chamber, the tubulose circle
One end of cylinder is provided with free open, and is provided with ear, and for holding on tubular cylinder, the other end is closed in the handle of injection needle
Portion is held, the free open of the pushing ram with reclaiming chamber from the tubular cylinder stretches into and can be advanced into the bottom of the other end
Portion, it is characterised in that：The pushing ram, which stretches into tubular cylinder one end, has round platform raised, round platform projection middle opening, is provided with back
Chamber is received, spring is provided with the reclaiming chamber, spring one end is connected to reclaiming chamber bottom, and one end is connected with hook, hook and bullet
Catch is connected with spring spiral part, catch is connected to reclaiming chamber opening by laser welding, and now spring is in stretching shape
State, the hook form for two steel wire welds, and a steel wire one end is connected to spring, the other end and another steel wire weld,
It is at an acute angle between two steel wires, and during two steel wire stress can under external force close to closing up, when external force disappears two steel wires it
Between recover at an acute angle；The tubular cylinder blind end is provided with the handle part of injection needle, including grasping claw and dome, grasping claw are
The symmetrical structure for being used to hold on injection needle extended by tubular cylinder blind end, semicircle matrix is provided with grasping claw
Circular arc portion is used to clamp the injection needle with hemisphere jut, and so as to fix injection needle, dome is cylindrical tube, one end
Be open other end closing, and blind end is provided with circular hole, and dome is coated on outside handle part, and dome openend passes through ultrasonic bonding side
Formula is connected to tubular cylinder blind end；Injection needle passes through dome blind end circular hole, between injection needle and dome blind end circular hole
There is sealing ring；The injection needle is provided with ball bumps by end is held, and cylindrical tube, cylinder tube opening are connected with ball bumps
Place is provided with steel wire, is attached between steel wire and cylindrical tube by welding；The pushing ram is pushed into the most bottom of tubular cylinder
During portion, the hook is through steel wire on injection needle, the raised extruding grasping claw of round platform on pushing ram, makes the spacing of two grasping claw
From increase, injection needle departs from grasping claw, and injection needle cylinder pipeline section extruding catch makes catch come off, work of the spring in itself power
With lower retraction, steel wire on injection needle is hooked on spring, drives injection needle to be retracted into reclaiming chamber together.
2. disposable injection device according to claim 1, it is characterised in that：The steel wire screen distance is more than two steel of hook
Silk close up after most width from.
3. disposable injection device according to claim 1, it is characterised in that：The catch is carried out in reclaiming chamber opening
After laser welding, pulling-out force 40-50N, elastic force is 10-15N after spring is stretched in reclaiming chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710871333.5A CN107569747A (en) | 2017-09-25 | 2017-09-25 | A kind of disposable injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710871333.5A CN107569747A (en) | 2017-09-25 | 2017-09-25 | A kind of disposable injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107569747A true CN107569747A (en) | 2018-01-12 |
Family
ID=61038934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710871333.5A Withdrawn CN107569747A (en) | 2017-09-25 | 2017-09-25 | A kind of disposable injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107569747A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055669A (en) * | 1990-01-09 | 1991-10-30 | 加塔诺·纳希 | A kind of hypodermic syringe that to return and to hold the hypodermic needle plunger after injection finishes that has |
| CN2654144Y (en) * | 2003-11-11 | 2004-11-10 | 顾逸铭 | Needle retractable injector |
| CN2759493Y (en) * | 2004-07-28 | 2006-02-22 | 北京浚达丰医疗器械有限公司 | Single-use safety syringe |
| CN2801182Y (en) * | 2004-10-19 | 2006-08-02 | 徐昊华 | Safety injector with automatic retractable needle |
| CN2810627Y (en) * | 2005-02-06 | 2006-08-30 | 山东省医疗器械研究所 | Safety syringe |
| CN101028548A (en) * | 2006-07-01 | 2007-09-05 | 徐昊华 | Disposable safety syringe |
| CN200966819Y (en) * | 2006-09-25 | 2007-10-31 | 罗绍基 | Spring type safe self-destroyed type injection |
| CN101934104A (en) * | 2009-06-29 | 2011-01-05 | 颜健民 | Automatic retraction syringe |
| CN201939825U (en) * | 2010-12-24 | 2011-08-24 | 江苏苏云医疗器材有限公司 | Automatically-retractive safe injector |
| CN203647812U (en) * | 2014-01-12 | 2014-06-18 | 广东海鸥医疗器械股份有限公司 | Automatic retraction safety injector |
-
2017
- 2017-09-25 CN CN201710871333.5A patent/CN107569747A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055669A (en) * | 1990-01-09 | 1991-10-30 | 加塔诺·纳希 | A kind of hypodermic syringe that to return and to hold the hypodermic needle plunger after injection finishes that has |
| CN2654144Y (en) * | 2003-11-11 | 2004-11-10 | 顾逸铭 | Needle retractable injector |
| CN2759493Y (en) * | 2004-07-28 | 2006-02-22 | 北京浚达丰医疗器械有限公司 | Single-use safety syringe |
| CN2801182Y (en) * | 2004-10-19 | 2006-08-02 | 徐昊华 | Safety injector with automatic retractable needle |
| CN2810627Y (en) * | 2005-02-06 | 2006-08-30 | 山东省医疗器械研究所 | Safety syringe |
| CN101028548A (en) * | 2006-07-01 | 2007-09-05 | 徐昊华 | Disposable safety syringe |
| CN200966819Y (en) * | 2006-09-25 | 2007-10-31 | 罗绍基 | Spring type safe self-destroyed type injection |
| CN101934104A (en) * | 2009-06-29 | 2011-01-05 | 颜健民 | Automatic retraction syringe |
| CN201939825U (en) * | 2010-12-24 | 2011-08-24 | 江苏苏云医疗器材有限公司 | Automatically-retractive safe injector |
| CN203647812U (en) * | 2014-01-12 | 2014-06-18 | 广东海鸥医疗器械股份有限公司 | Automatic retraction safety injector |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180112 |