CN203539812U - Novel push-out self-disposable syringe - Google Patents

Novel push-out self-disposable syringe Download PDF

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Publication number
CN203539812U
CN203539812U CN201320612017.3U CN201320612017U CN203539812U CN 203539812 U CN203539812 U CN 203539812U CN 201320612017 U CN201320612017 U CN 201320612017U CN 203539812 U CN203539812 U CN 203539812U
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CN
China
Prior art keywords
needle stand
piston
push rod
needle bed
erection column
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Expired - Fee Related
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CN201320612017.3U
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Chinese (zh)
Inventor
蔡根顺
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Hong Mingwan
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Individual
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Priority to CN201320612017.3U priority Critical patent/CN203539812U/en
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Publication of CN203539812U publication Critical patent/CN203539812U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a novel push-out self-disposable syringe. The upper end of a syringe cylinder is provided with a needle bed mounting column; the needle bed mounting column is internally provided with a needle bed; the center of the needle bed is provided with a needle tube; the upper end of the needle bed is provided with a baffle ring; the upper end of the needle bed mounting column contracts inward to form a clamping ring matched with the baffle ring; a seal ring which closely clings to the inner wall of the needle bed mounting column is tightly sleeved at the lower end of the needle bed; the upper end of a push rod in the cylinder is provided with a piston mounting part; a push rod is molded at the middle of the piston mounting part and can be used for enabling the needle bed to overcome the resistance applied to the baffle ring by the clamping ring and further pushing the needle bed out of the needle bed mounting column when being upward pushed to a certain position; a piston is sleeved on the piston mounting part; a deformation cavity is arranged between the middle of the piston and the outer wall of the push rod. According to the novel push-out self-disposable syringe, the liquor residual quantity is less and is approximate to one third of the government standard, thereby being beneficial to the environmental conservation during subsequent recycling or disposal of the syringe; the novel push-out self-disposable syringe is quite thorough in self disposal, simple and convenient in operation and applicable to use by medical care personnel.

Description

A kind of Novel ejection self-destruction syringe
Technical field
This utility model belongs to disposable injector technology field, refers 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 purpose of this utility model is to provide the problem that the existing disposable syringe of a kind of customer service exists, and proposes a kind of reasonable in designly, easy to use and cost is lower, is beneficial to the Novel ejection self-destruction syringe of popularization.
The purpose of this utility model is achieved in that 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.
This utility model compared to existing technology outstanding and useful technique effect is:
The upper end of cylindrical shell of the present utility model 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 utility model is arranged in needle stand erection column, needle stand bottom is close to by sealing ring and needle stand erection column inwall, with compare traditional syringe and compare, liquor residue amount of the present utility model 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 utility model 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 this utility model self-destruction, 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 utility model 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 utility model 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, this utility model is 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 utility model 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 utility model, not limits according to this protection domain of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection domain of the present utility model.

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.
CN201320612017.3U 2013-10-06 2013-10-06 Novel push-out self-disposable syringe Expired - Fee Related CN203539812U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320612017.3U CN203539812U (en) 2013-10-06 2013-10-06 Novel push-out self-disposable syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320612017.3U CN203539812U (en) 2013-10-06 2013-10-06 Novel push-out self-disposable syringe

Publications (1)

Publication Number Publication Date
CN203539812U true CN203539812U (en) 2014-04-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320612017.3U Expired - Fee Related CN203539812U (en) 2013-10-06 2013-10-06 Novel push-out self-disposable syringe

Country Status (1)

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CN (1) CN203539812U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103550849A (en) * 2013-10-06 2014-02-05 蔡根顺 Novel push-out self-destructive injector
CN106362244A (en) * 2015-07-24 2017-02-01 黄文村 Safety syringe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103550849A (en) * 2013-10-06 2014-02-05 蔡根顺 Novel push-out self-destructive injector
CN106362244A (en) * 2015-07-24 2017-02-01 黄文村 Safety syringe

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170413

Address after: 315500 Zhejiang city of Ningbo province Fenghua Jiangkou private science and Technology Park (decursivum)

Patentee after: Zhejiang Jinyuan Medical Instrument Technology Co.,Ltd.

Address before: 318020 Taizhou Province, Huangyan District, the new front street village village, No. 245

Patentee before: Cai Genshun

PP01 Preservation of patent right
PP01 Preservation of patent right

Effective date of registration: 20180301

Granted publication date: 20140416

PD01 Discharge of preservation of patent

Date of cancellation: 20180607

Granted publication date: 20140416

PD01 Discharge of preservation of patent
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180622

Address after: 315500 Fenghua District Private Science and Technology Park in Ningbo, Zhejiang

Patentee after: Ningbo Li Long rubber & Plastics Co.,Ltd.

Address before: 315500 Jiangkou Private Science Park, Fenghua District, Ningbo, Zhejiang (Qian Hu)

Patentee before: Zhejiang Jinyuan Medical Instrument Technology Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180809

Address after: 318020 No. 255, Xicheng village, Xicheng street, Huangyan District, Taizhou, Zhejiang

Patentee after: Hong Mingwan

Address before: 315500 Fenghua District Private Science and Technology Park in Ningbo, Zhejiang

Patentee before: Ningbo Li Long rubber & Plastics Co.,Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140416

Termination date: 20211006