CN103550849A - Novel push-out self-destructive injector - Google Patents
Novel push-out self-destructive injector Download PDFInfo
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- CN103550849A CN103550849A CN201310458777.8A CN201310458777A CN103550849A CN 103550849 A CN103550849 A CN 103550849A CN 201310458777 A CN201310458777 A CN 201310458777A CN 103550849 A CN103550849 A CN 103550849A
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- Prior art keywords
- needle stand
- piston
- push rod
- erection column
- needle seat
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Abstract
The invention discloses a novel push-out self-destructive injector. A needle seat mounting column is arranged at the upper end of an injector barrel body, a needle seat is installed in the needle seat mounting column, a needle tube is arranged at the center of the needle seat, a baffle ring is disposed at the upper end of the needle seat, the upper end of the needle seat mounting column is inwards contracted to form a clamping ring which is matched with the baffle ring, the lower end of the needle seat is tightly sleeved with a seal ring which is tightly attached to the inner wall of the needle seat mounting column, a piston mounting portion is installed at the upper end of a push rod in the barrel body, an ejecting rod is formed in the middle of the piston mounting portion, the ejecting rod enables the needle seat to overcome resistance of the clamping ring on the baffle ring and then ejects the needle seat out of the needle seat mounting column when upwards pushed to a certain position, a piston is sleeved on the piston mounting portion, and a deforming cavity is arranged between the middle of the piston and the outer wall of the ejecting rod. According to the novel push-out self-destructive injector, the liquid medicine residues are minimal, which are close to 1/3 of national standards, environmental protection during subsequent recycling or destruction of the injector is facilitated, the self-destruction is complete, the operation is simple and convenient, and the novel push-out self-destructive injector is suitable for being used by medical workers.
Description
Technical field
The invention belongs to disposable injector technology field, refer in particular to a kind of Novel ejection self-destruction syringe.
Background technology
In the progress along with social, people are more and more higher to medical requirement, and medical apparatus and instruments is also in constantly innovation and improvement, and especially the improvement aspect syringe is greatly improved.At present, plastic injector for temporary use is used widely.General disposable syringe is just discarded after using once, thereby can prevent syringe from reusing and cause viral communication, safer health.But disposable syringe in the market, because structural design is comparatively complicated, is used trouble, and can not realize complete self-destruction, production cost is higher, is unfavorable for promoting.
Summary of the invention
The object of this invention is to provide the problem that the existing disposable syringe of a kind of customer service exists, propose a kind of reasonable in designly, easy to use and cost is lower, be beneficial to the Novel ejection self-destruction syringe of popularization.
The object of the present invention is achieved like this: a kind of Novel ejection self-destruction syringe, comprise cylindrical shell, push rod, piston and needle stand, the central authorities of needle stand are provided with needle tubing, the upper end of described cylindrical shell is provided with needle stand erection column, cylindrical shell upper end is connected by round table surface with needle stand erection column lower end, described needle stand is arranged in needle stand erection column, the upper end of needle stand is provided with baffle ring, needle stand erection column upper end inside contracts and forms the snap ring coordinating with described baffle ring, the lower end of described needle stand is closely arranged with sealing ring, and the outside of sealing ring and needle stand erection column inwall are close to; Described push rod upper end is provided with piston installation portion; The middle part of described piston installation portion forms while being pushed into certain position and makes needle stand overcome the resistance that snap ring gives baffle ring, and then needle stand is ejected to the push rod of needle stand erection column, on piston installation portion, be arranged with piston, the middle part of piston is provided with the mesopore stretching out for push rod, between piston middle part and push rod outer wall, is provided with deformable cavity.
Preferably, on the outer wall of described needle stand erection column, be provided with some card muscle that coordinate with sheath.
Preferably, on the inwall of described needle stand erection column lower end, be provided with the step chamber of settling described sealing ring, on the lower end inwall of step chamber, be provided with the lower baffle ring coordinating with edge under sealing ring.
Preferably, the outside of described needle stand bottom inside contracts formation Step Shaft, and described sealing ring is enclosed within on Step Shaft.
Preferably, described snap ring and baffle ring are the inclined-plane of 45 degree to the contact surface closing mutually.
Preferably, the bottom of described piston is provided with base ring.
Preferably, described piston installation portion comprises the core bar that is molded over push rod upper end, and all sides of core bar form top fastening station and low fastening station, forms described push rod on the end face of top fastening station; Described piston bush is on top fastening station or low fastening station.
The present invention compared to existing technology outstanding and useful technique effect is:
The upper end of cylindrical shell of the present invention is provided with needle stand erection column, cylindrical shell upper end is connected by round table surface with needle stand erection column lower end, and when this design makes to inject, the medicinal liquid in cylindrical shell is to impact sealing ring with angle of inclination, sealing ring and needle stand stressed less, more safe and reliable;
Needle stand of the present invention is arranged in needle stand erection column, needle stand bottom is close to by sealing ring and needle stand erection column inwall, compares with comparing traditional syringe, and liquor residue amount of the present invention is minimum, residual quantity approaches 1/3 of GB, environmental protection when it benefits the follow-up recovery of syringe or destroys;
Needle stand of the present invention upper end coordinates with the snap ring of needle stand erection column upper end by baffle ring, it is the inclined-plane of 45 degree that snap ring and baffle ring support the contact surface closing mutually, simultaneously, between piston middle part and push rod outer wall, be provided with deformable cavity, after this design makes injecting liquid drug, only need apply again certain power and just can make needle stand be ejected by push rod, thereby realize self-destruction, self-destruction is comparatively light, convenient;
After self-destruction of the present invention, needle stand is separated with miscellaneous part, makes the recycling of syringe partly realize maximization, and safe and reliable, environment friendly convenient;
Piston installation portion of the present invention comprises the core bar that is molded over push rod upper end, and all sides of core bar form top fastening station and low fastening station, forms described push rod on the end face of top fastening station; Described piston bush is on top fastening station or low fastening station, and this design goes for push rod;
Of the present invention rational in infrastructure, production cost is lower, it is convenient after product is used, to reclaim, and is easier to promote, and is applicable to medical personnel and uses.
Accompanying drawing explanation
Fig. 1 is each exploded view of this self-destroyed syringe.
Fig. 2 is the structure diagram of this self-destroyed syringe.
The specific embodiment
Below in conjunction with accompanying drawing, with specific embodiment, the invention will be further described.
As shown in Figure 1-2, a kind of Novel ejection self-destruction syringe, comprise cylindrical shell 2, push rod 7, piston 6 and needle stand 4, the central authorities of needle stand 4 are provided with needle tubing 3, and the upper end of described cylindrical shell 8 is provided with needle stand erection column 22, and cylindrical shell 2 upper ends are connected by round table surface 21 with needle stand erection column 22 lower ends, when this design makes to inject, medicinal liquid in cylindrical shell is to impact sealing ring with angle of inclination, sealing ring and needle stand stressed less, more safe and reliable; Described needle stand 4 is arranged in needle stand erection column 22, the upper end of needle stand 4 is provided with baffle ring 41, needle stand erection column 22 upper ends inside contract and form the snap ring 221 coordinating with described baffle ring 41, and the lower end of described needle stand 4 is closely arranged with sealing ring 5, and the outside of sealing ring 5 and needle stand erection column 22 inwalls are close to; Described push rod 7 upper ends are provided with piston installation portion 71; The middle part of described piston installation portion 71 forms while being pushed into certain position and makes needle stand 4 overcome the resistance that snap ring 221 gives baffle ring 41, and then needle stand 4 is ejected to the push rod 72 of needle stand erection column 22, on piston installation portion 71, be arranged with piston 6, the middle part of piston 6 is provided with the mesopore stretching out for push rod 72, between piston 6 middle parts and push rod 72 outer walls, is provided with deformable cavity 61.Compare with comparing traditional syringe, liquor residue amount of the present invention is minimum, and residual quantity approaches 1/3 of GB, environmental protection when it benefits the follow-up recovery of syringe or destroys.
Preferably, on the outer wall of described needle stand erection column 22, be provided with some card muscle 23 that coordinate with sheath 1.
Preferably, on the inwall of described needle stand erection column 22 lower ends, be provided with the step chamber 222 of settling described sealing ring 5, on the lower end inwall of step chamber 222, be provided with the lower baffle ring 223 coordinating with 5 times edges of sealing ring, sealing ring 5 is placed in step chamber 222, and the design of lower baffle ring 223, make the assembling of sealing ring more simple and easy, after assembling, can not produce displacement.
Preferably, the outside of described needle stand 4 bottoms inside contracts and forms Step Shaft (not shown), and described sealing ring is enclosed within on Step Shaft, and it is more tight, stable that this design makes sealing ring coordinate with needle stand and needle stand erection column 22, be convenient to assembling, be difficult in handling process loosening.
Preferably, described snap ring 221 and baffle ring 41 are the inclined-plane of 45 degree to the contact surface a closing mutually.This design can reduce needle stand by static to mobile required power.
Preferably, the bottom of described piston 6 is provided with base ring 62, and this design makes piston base and low fastening station 713 contact surfaces only have base ring 62, and the bottom in piston outside is unsettled, when piston 6 tops are stressed and produce distortion, can make piston upper deformation more smooth and easy.
Preferably, described piston installation portion 71 comprises the core bar 712 that is molded over push rod 7 upper ends, and this core bar is cross core bar, and all sides of core bar form top fastening station 711 and low fastening station 713, the diameter of top fastening station 711 is less than low fastening station 713 diameters, forms described push rod 72 on the end face of top fastening station 711; Described piston 6 is enclosed within on top fastening station 711 or low fastening station 713.This design makes push rod 7 go for the piston of different size, in the present embodiment, piston 6 is enclosed within on top fastening station 711, if the bore of cylindrical shell increases, only need on this push rod, assemble the piston matching with cylindrical shell bore, this piston can be enclosed within on low fastening station 713, makes push rod 7 at the beginning of molding, go for the cylindrical shell (these two kinds of cylindrical shell bore ratios can approach 2:3) of two kinds of different bores.
The design's work process: 1, the design is consistent with ordinary syringe in the process that extracts medicinal liquid and injection, during injection, promotes push rod 7 forward to end in contact cylinder inboard wall on piston 6 with finger, and liquid medicine is injected complete; 2, enter self-destruction step, syringe, facing to recycling bin, is continued to promote to push away before push rod 7 the contact needle stand bottom, upper end of top thick stick 72, piston 6 extrusions by the power of 25-50 cattle; 3, again to push rod 7 application of forces, needle stand 4 is separated with sealing ring 5, and needle stand 72 is ejected needle stand erection column 22, and syringe forms self-destruction.
Above-described embodiment is only preferred embodiment of the present invention, not limits the scope of the invention according to this, therefore: all equivalences of doing according to structure of the present invention, shape, principle change, within all should being covered by protection scope of the present invention.
Claims (6)
1. a Novel ejection self-destruction syringe, comprise cylindrical shell, push rod, piston and needle stand, the central authorities of needle stand are provided with needle tubing, it is characterized in that: the upper end of described cylindrical shell is provided with needle stand erection column, cylindrical shell upper end is connected by round table surface with needle stand erection column lower end, described needle stand is arranged in needle stand erection column, the upper end of needle stand is provided with baffle ring, needle stand erection column upper end inside contracts and forms the snap ring coordinating with described baffle ring, the lower end of described needle stand is closely arranged with sealing ring, and the outside of sealing ring and needle stand erection column inwall are close to; Described push rod upper end is provided with piston installation portion; The middle part of described piston installation portion forms the push rod that needle stand is ejected to needle stand erection column, on piston installation portion, is arranged with piston, and the middle part of piston is provided with the mesopore stretching out for push rod, between piston middle part and push rod outer wall, is provided with deformable cavity.
2. according to a kind of Novel ejection self-destruction syringe described in claim 1, it is characterized in that: on the outer wall of described needle stand erection column, be provided with some card muscle that coordinate with sheath.
3. according to a kind of Novel ejection self-destruction syringe described in claim 1, it is characterized in that: on the inwall of described needle stand erection column lower end, be provided with the step chamber of settling described sealing ring, on the lower end inwall of step chamber, be provided with the lower baffle ring coordinating with edge under sealing ring.
4. according to a kind of Novel ejection self-destruction syringe described in claim 1, it is characterized in that: it is the inclined-plane of 45 degree that described snap ring and baffle ring support the contact surface closing mutually.
5. a kind of Novel ejection self-destruction syringe according to claim 1, is characterized in that: the bottom of described piston is provided with base ring.
6. according to a kind of Novel ejection self-destruction syringe described in claim 1-5 any one, it is characterized in that: described piston installation portion comprises the core bar that is molded over push rod upper end, all sides of core bar form top fastening station and low fastening station, form described push rod on the end face of top fastening station; Described piston bush is on top fastening station or low fastening station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310458777.8A CN103550849A (en) | 2013-10-06 | 2013-10-06 | Novel push-out self-destructive injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310458777.8A CN103550849A (en) | 2013-10-06 | 2013-10-06 | Novel push-out self-destructive injector |
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| Publication Number | Publication Date |
|---|---|
| CN103550849A true CN103550849A (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310458777.8A Pending CN103550849A (en) | 2013-10-06 | 2013-10-06 | Novel push-out self-destructive injector |
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| CN (1) | CN103550849A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991008011A1 (en) * | 1989-11-23 | 1991-06-13 | Patrice Elfandi | Injection material (syringe and needle) unusable after a single use |
| CN2650779Y (en) * | 2003-11-06 | 2004-10-27 | 林作钱 | Separated self-destructed syringes |
| CN101099876A (en) * | 2007-08-15 | 2008-01-09 | 张亚根 | Active type safety syringe and safety injection needle |
| CN201453770U (en) * | 2009-07-09 | 2010-05-12 | 张亚平 | Safety syringe with separate syringe body and needle |
| CN102631730A (en) * | 2012-05-03 | 2012-08-15 | 蔡根顺 | Ejection-type self-destructive syringe |
| CN203539812U (en) * | 2013-10-06 | 2014-04-16 | 蔡根顺 | Novel push-out self-disposable syringe |
-
2013
- 2013-10-06 CN CN201310458777.8A patent/CN103550849A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991008011A1 (en) * | 1989-11-23 | 1991-06-13 | Patrice Elfandi | Injection material (syringe and needle) unusable after a single use |
| CN2650779Y (en) * | 2003-11-06 | 2004-10-27 | 林作钱 | Separated self-destructed syringes |
| CN101099876A (en) * | 2007-08-15 | 2008-01-09 | 张亚根 | Active type safety syringe and safety injection needle |
| CN201453770U (en) * | 2009-07-09 | 2010-05-12 | 张亚平 | Safety syringe with separate syringe body and needle |
| CN102631730A (en) * | 2012-05-03 | 2012-08-15 | 蔡根顺 | Ejection-type self-destructive syringe |
| CN203539812U (en) * | 2013-10-06 | 2014-04-16 | 蔡根顺 | Novel push-out self-disposable syringe |
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Application publication date: 20140205 |