CN2528460Y - Safety syringe capable of changing needle - Google Patents

Safety syringe capable of changing needle Download PDF

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Publication number
CN2528460Y
CN2528460Y CN 02216520 CN02216520U CN2528460Y CN 2528460 Y CN2528460 Y CN 2528460Y CN 02216520 CN02216520 CN 02216520 CN 02216520 U CN02216520 U CN 02216520U CN 2528460 Y CN2528460 Y CN 2528460Y
Authority
CN
China
Prior art keywords
syringe
needle
syringe needle
arranged
connection block
Prior art date
Application number
CN 02216520
Other languages
Chinese (zh)
Inventor
沈挺
Original Assignee
沈挺
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 沈挺 filed Critical 沈挺
Priority to CN 02216520 priority Critical patent/CN2528460Y/en
Application granted granted Critical
Publication of CN2528460Y publication Critical patent/CN2528460Y/en

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Abstract

The utility model relates to a safety syringe capable of changing needle, which comprises a syringe needle, a pintle, a needle cylinder. A micro-convex body is arranged on the lower inner side of the needle cylinder, a cylinder neck is arranged on the top end of the needle cylinder, an inward convex ring is arranged on the upper opening of the cylinder neck; and a syringe needle solt which is arranged in the cylinder neck matches with the cylinder neck reciprocally, a syringe needle is arranged on the center of the upper part of the syringe needle solt, and the micro-convex ring is arranged on the lower part of the syringe needle solt; a upper and a lower piston sealing strips are arranged on the top end of the pintle, and the pintle matches with the inner side of the needle cylinder tightly, at least two upright posts are arranged between the upper and lower piston sealing strip; and a socket is arranged between the upright posts, the barbed body is passed through the center of the upper piston sealing strip, and arranged on the lower piston sealing strip, and the inner side of the syringe solt can hold the barbed body. The utility model can switch to all kinds of standard and non-standard syringe needles, and can be utilized for one time or more, and the damage of the syringe needles can be achieved.

Description

A kind of safety injector of exchangeable needle

Technical field:

This utility model relates to a kind of disposable syringe, relates more specifically to a kind of suitable international standard model syringe needle, and can make the medical safe syringe of needle retractable damage.

Background technology:

Use more disposable syringe at present, behind the contact sick body, outside contaminated syringe needle was exposed to, medical worker or cleaning employee did not note slightly, very easily infected by needle sting, according to present disclosed this technical scheme, its shortcoming is: because of unreasonable structure, in transportation or improper use, automatic damage is caused in the capital, syringe needle can not be changed after fixing in addition, and the model of its use does not meet international standard yet, therefore is difficult to promote the use of.

Summary of the invention:

This utility model provides a kind of safety injector of exchangeable needle, for having overcome above-mentioned shortcoming, guaranteed that from structural design this syringe can repeatedly use safely and reliably, can reach the purpose of thorough damage syringe easily and reliably with needle retractable again after finishing using.The technical solution of the utility model is: a kind of safety injector of exchangeable needle comprises: syringe needle, pintle, syringe; It is characterized in that: establish a micro-bulge on the inboard of syringe lower end, a neck is put on the top of syringe, the convex circle that is provided with suitable for reading of tube neck, the syringe needle Connection Block places in the neck and coincide mutually, a needle holder is put on the top of syringe needle Connection Block, put a syringe needle on it, the inboard, lower end of syringe needle Connection Block is provided with the dimpling circle, the top of pintle is provided with, the lower piston diaphragm seal, and with the inboard tight connecting of syringe, on, be provided with at least two upright supports between the lower piston diaphragm seal, a groove is put in the centre of column, barbed body passes the central authorities of upper piston seal sheet, is fixed on the lower piston diaphragm seal, can hold barbed body in the syringe needle Connection Block and enter.This utility model can be used various international standards and off-gauge syringe needle instead, and can repeatedly or once use, and finally reaches the purpose of damage.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a collapse state sketch map of the present utility model.

Wherein: 5 necks of 1 syringe needle, 2 pintle 3 syringes, 4 micro-bulges, 6 syringe needle Connection Blocks, 7 convex circles, 8 needle holder, 9 dimpling circles, 10 upper piston seal sheets, 11 lower piston diaphragm seals, 12 columns, 13 grooves, 14 barbed bodies, 15 oblique arms

The specific embodiment:

As shown in Figure 1: this utility model comprises: syringe needle 1, pintle 2, syringe 3, establish a micro-bulge 4 on the inboard of syringe 3 lower ends, a neck 5 is put on the top of syringe 3, the convex circle 7 that is provided with suitable for reading of tube neck 5, syringe needle Connection Block 6 places in the neck 5 and coincide mutually, a needle holder 8 is put on the top of syringe needle Connection Block 6, put a syringe needle 1 on it, the inboard, lower end of syringe needle Connection Block 6 is provided with dimpling circle 9, the top of pintle 2 is provided with, lower piston diaphragm seal 10,11, and with the inboard tight connecting of syringe 3, on, lower piston diaphragm seal 10, be provided with at least two columns 12 between 11 and support, a groove 13 is put in the centre of column 12, and barbed body 14 passes the central authorities of upper piston seal sheet 10, be fixed on the lower piston diaphragm seal 11, can hold barbed body 14 in the syringe needle Connection Block 6 and enter.

As shown in Figure 1 and Figure 2: oblique arm 15 length of barbed body 14 of the present utility model are greater than the internal diameter of syringe needle Connection Block 6, the lower end of the oblique arm 15 of barbed body 14 and the surface of upper piston seal sheet 10 are in a plane, or a little higher than should the surface, the diameter of tube neck 5 and the bottom of syringe needle Connection Block 6 is more than or equal to its vertical diameter.

As Fig. 1, shown in Figure 2: during this utility model work, as long as pintle 2 is firmly pushed ahead, medicinal liquid in the syringe 3 is discharged from syringe needle 1, when pintle 2 vertical upper piston seal sheets 10 arrive at the tube neck 5 of syringe 3, medicinal liquid in the syringe 3 drains, working as pintle 2 this moment pulls out, can repeated multiple times use, when firmly pintle 2 tops being pushed into a tin neck 5, upper piston seal sheet 10 is inside or outwardly-bent with lower piston diaphragm seal 11 intermediary support posts 12, make, lower piston diaphragm seal 10, distance compression between 11, the barbed body 14 of upper piston seal sheet 10 central authorities enters in the syringe needle Connection Block 6, and by its inboard dimpling circle 9 lockings, as long as pintle 2 is pulled back, oblique arm 15 two ends of barbed body 14 tiltedly are worn on the inwall of syringe needle Connection Block 6, drive syringe needle Connection Block 6, needle holder 8, make in its syringe needle 1 income syringe 3, and needle point is swung to the side in syringe 3 or the tube neck 5, will, the lower piston diaphragm seal 11 of pintle 2 is pulled to after the micro-bulge 4 of syringe 3 lower ends contacts on the top, pintle 2 is pushed ahead again, and syringe needle 1 will bending in syringe 3 or tube neck 5, thereby reached damage syringe needle 1, the purpose of disabling syringe.

Claims (4)

1, a kind of safety injector of exchangeable needle comprises: syringe needle, pintle, syringe; It is characterized in that: establish a micro-bulge on the inboard of syringe lower end, a neck is put on the top of syringe, the convex circle that is provided with suitable for reading of tube neck, the syringe needle Connection Block places in the neck and coincide mutually, a needle holder is put on the top of syringe needle Connection Block, put a syringe needle on it, the inboard, lower end of syringe needle Connection Block is provided with the dimpling circle, the top of pintle is provided with, the lower piston diaphragm seal, and with the inboard tight connecting of syringe, on, be provided with at least two upright supports between the lower piston diaphragm seal, a groove is put in the centre of column, barbed body passes the central authorities of upper piston seal sheet, is fixed on the lower piston diaphragm seal, can hold barbed body in the syringe needle Connection Block and enter.
2, the safety injector of a kind of exchangeable needle according to claim 1 is characterized in that: the oblique arm length of barbed body is greater than the internal diameter of syringe needle Connection Block.
3, the safety injector of a kind of exchangeable needle according to claim 1 and 2 is characterized in that: the surface of the lower end of the oblique arm of barbed body and upper piston seal sheet is in a plane, or a little higher than should the surface.
4, the safety injector of a kind of exchangeable needle according to claim 1 is characterized in that: the diameter of the bottom of tube neck and syringe needle Connection Block is more than or equal to its vertical diameter.
CN 02216520 2002-04-01 2002-04-01 Safety syringe capable of changing needle CN2528460Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02216520 CN2528460Y (en) 2002-04-01 2002-04-01 Safety syringe capable of changing needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02216520 CN2528460Y (en) 2002-04-01 2002-04-01 Safety syringe capable of changing needle

Publications (1)

Publication Number Publication Date
CN2528460Y true CN2528460Y (en) 2003-01-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02216520 CN2528460Y (en) 2002-04-01 2002-04-01 Safety syringe capable of changing needle

Country Status (1)

Country Link
CN (1) CN2528460Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100382857C (en) * 2004-08-12 2008-04-23 上海麦得可医疗器械销售有限公司 Clamp spring type safe injector
CN104027874A (en) * 2014-06-19 2014-09-10 杨育和 Retractable type safe injection syringe with changeable needle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100382857C (en) * 2004-08-12 2008-04-23 上海麦得可医疗器械销售有限公司 Clamp spring type safe injector
CN104027874A (en) * 2014-06-19 2014-09-10 杨育和 Retractable type safe injection syringe with changeable needle
WO2015192485A1 (en) * 2014-06-19 2015-12-23 杨育和 Retractable safe syringe with changeable needle

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: SHANGHAI DINGJIANTANG BIOCHEMISTRY SCIENCE CO., L

Free format text: FORMER OWNER: SHEN TING

Effective date: 20040827

TR01 Transfer of patent right

Effective date of registration: 20040827

Address after: 1993, room 200051, building B, 100 Zunyi Road, Shanghai

Patentee after: Shanghai Biotop Technology Co., Ltd.

Address before: 200336, room 8, No. 597, Lane 503, Moutai Road, Shanghai, Changning District

Patentee before: Shen Ting

DD01 Delivery of document by public notice

Addressee: Li Dunji

Document name: Notification to Pay the Fees

DD01 Delivery of document by public notice

Addressee: Li Dunji

Document name: Notification of Termination of Patent Right

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20030101

Termination date: 20110401