CN203291063U - Micro-syringe for eye injection - Google Patents

Micro-syringe for eye injection Download PDF

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Publication number
CN203291063U
CN203291063U CN2013203722782U CN201320372278U CN203291063U CN 203291063 U CN203291063 U CN 203291063U CN 2013203722782 U CN2013203722782 U CN 2013203722782U CN 201320372278 U CN201320372278 U CN 201320372278U CN 203291063 U CN203291063 U CN 203291063U
Authority
CN
China
Prior art keywords
needle
syringe
tubulose
needle body
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.)
Expired - Fee Related
Application number
CN2013203722782U
Other languages
Chinese (zh)
Inventor
魏欣
何为民
王琳
陈大年
邓应平
陈晓明
曾莉萍
佘春燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
West China Hospital of Sichuan University
Original Assignee
West China Hospital of Sichuan University
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 West China Hospital of Sichuan University filed Critical West China Hospital of Sichuan University
Priority to CN2013203722782U priority Critical patent/CN203291063U/en
Application granted granted Critical
Publication of CN203291063U publication Critical patent/CN203291063U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an eye is micro-syringe for injection, including the cylinder, set up the push rod in the cylinder, the push rod front end is provided with the piston, the piston in the cylinder with cylinder sliding fit, the cylinder front end is provided with the syringe needle, the syringe needle includes needle handle and tubulose needle body, the needle handle is connected with the cylinder front end, the needle handle is connected to tubulose needle body one end, and the other end is the needle point, the needle point is the tubulose truncated cone. The utility model discloses simple structure, and do benefit to the puncture, no secondary injury.

Description

The ocular injection microsyringe
Technical field
This utility model relates to technical field of medical instruments, particularly a kind of ocular injection microsyringe.
Background technology
The most needle point of the syringe needle of existing syringe is all that an inclined-plane is worn in end-grain cutting before the needle body of thin light-wall pipe, therefore as after will injecting the tissue that need fully the inclined-plane that comprises whole tube chamber be submerged fully can inject, larger to the damage of tissue when to minor structure tissue injections such as eyeball of mouse, puncture orifice is difficult for the Natural closure; And inwall and the inclined-plane of the latter half of this needle point have formed sharp sword, can cut off the skin and flesh tissue of process, skin and flesh is organized to injury, cut-out that can be again while in addition extracting syringe needle the skin and flesh tissue of process, cause secondary injury.While particularly the fragile positions such as eyeball being injected, damage larger.And another kind of needle point front end is the injection needle of circular arc, though can not cut the skin and flesh tissue, be unfavorable for puncture.
The utility model content
This utility model aims to provide a kind of ocular injection microsyringe, and it is beneficial to puncture, and is without secondary injury, simple in structure.
The technical solution of the utility model is a kind of ocular injection microsyringe, comprise syringe, be arranged on the push rod in syringe, described push rod front end is provided with piston, and described piston is slidably matched with syringe in syringe, described syringe front end is provided with syringe needle, described syringe needle comprises needle handle and tubulose needle body, and described needle handle is connected with the syringe front end, and described tubulose needle body one end connects needle handle, the other end is needle point, and described needle point is the tubulose truncated cones.
Preferably, the long 10~20mm of described tubulose needle body.
Preferably, described end of tubular needle body diameter is 0.2~0.5mm, and internal diameter is 0.1~0.3mm.
Preferably, described tubulose needle body adopts rustless steel to be made.
Preferably, described needle point is grown half for the tubulose needle body.
The beneficial effects of the utility model are: simple in structure, be beneficial to puncture, without secondary injury.
The accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is the structural representation of syringe needle 4 in Fig. 1.
In figure: 1. push rod, 2. syringe, 3. piston, 4. syringe needle, 5. needle handle, 6. tubulose needle body, 7. needle point.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, this utility model is further elaborated.
As shown in Figure 1 and Figure 2, this utility model is a kind of ocular injection microsyringe, comprises syringe 2, is arranged on the push rod 1 in syringe 2, push rod 1 front end is provided with piston 3, piston 3 is slidably matched with syringe 2 in syringe 2, syringe 2 front ends are provided with syringe needle 4, and syringe needle 4 comprises needle handle 5 and tubulose needle body 6, needle handle 5 is connected with syringe 2 front ends, tubulose needle body 6 one ends connect needle handle 5, and the other end is needle point 7, and needle point 7 is the tubulose truncated cones.Long 10~the 20mm of tubulose needle body 6.Tubulose needle body 6 external diameters are 0.2~0.5mm, and internal diameter is 0.1~0.3mm.Tubulose needle body 6 adopts rustless steel to be made.Needle point 7 length are half of tubulose needle body 6.
Certainly; this utility model also can have other various embodiments; in the situation that do not deviate from this utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to this utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of this utility model.

Claims (5)

1. ocular injection microsyringe, comprise syringe (2), be arranged on the push rod (1) in syringe (2), described push rod (1) front end is provided with piston (3), described piston (3) is slidably matched with syringe (2) in syringe (2), described syringe (2) front end is provided with syringe needle (4), it is characterized in that: described syringe needle (4) comprises needle handle (5) and tubulose needle body (6), described needle handle (5) is connected with syringe (2) front end, described tubulose needle body (6) one ends connect needle handle (5), the other end is needle point (7), described needle point (7) is the tubulose truncated cones.
2. ocular injection microsyringe according to claim 1, is characterized in that: the long 10~20mm of described tubulose needle body (6).
3. ocular injection microsyringe according to claim 1, it is characterized in that: described tubulose needle body (6) external diameter is 0.2~0.5mm, and internal diameter is 0.1~0.3mm.
4. ocular injection microsyringe according to claim 1 is characterized in that: described tubulose needle body (6) adopts rustless steel to be made.
5. ocular injection microsyringe according to claim 1 is characterized in that: long half for tubulose needle body (6) of described needle point (7).
CN2013203722782U 2013-06-26 2013-06-26 Micro-syringe for eye injection Expired - Fee Related CN203291063U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203722782U CN203291063U (en) 2013-06-26 2013-06-26 Micro-syringe for eye injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203722782U CN203291063U (en) 2013-06-26 2013-06-26 Micro-syringe for eye injection

Publications (1)

Publication Number Publication Date
CN203291063U true CN203291063U (en) 2013-11-20

Family

ID=49567112

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203722782U Expired - Fee Related CN203291063U (en) 2013-06-26 2013-06-26 Micro-syringe for eye injection

Country Status (1)

Country Link
CN (1) CN203291063U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131120

Termination date: 20140626

EXPY Termination of patent right or utility model