CN202982903U

CN202982903U - Silicone oil injector

Info

Publication number: CN202982903U
Application number: CN 201220723867
Authority: CN
Inventors: 杨平; 王怡; 付立红
Original assignee: Individual
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2012-11-23
Filing date: 2012-11-23
Publication date: 2013-06-12
Anticipated expiration: 2022-11-23

Abstract

The utility model provides a silicone oil injector and relates to an injector. The middle of a press rod (1) is fixedly connected with one end of a piston pushing rod (7), the middle of the piston pushing rod is arranged in a through hole (5) in the middle of a pulling rod (4), a piston (10) at the other end of the piston pushing rod is slidably matched with the inner wall of a cavity (9) of a syringe (8), an outer thread (6) arranged on an outer flange of one end of the syringe is connected with an inner thread (15) arranged in a recess of the middle of the pulling rod, a connecting nipple is arranged at the other end of the syringe, and another through hole (11) is communicated into the cavity of the syringe from the outer end of the connecting nipple. The press rod and the pulling rod are matched to form increase force, so that sticky silicone oil can be charged into holes easily, and the defects of the prior art are effectively overcome.

Description

A kind of silicone oil injector

[technical field]

This utility model relates to a kind of syringe, especially relates to a kind of reinforcement shape silicone oil injector.

[background technology]

Known, in doing the retina shedding operation process, meet in the time of can't performing the operation sufferer by the outside, need to the retina volt that break away from is flat, close the break; This operation is used mostly is greatly Medical silicone oil; Because eye has stable physicochemical property with silicone oil, refractive index is similar to vitreous body, simultaneously certain viscosity (1000-15000CS) and surface tension are arranged again, thereby the filling of silicone oil ophthalmic is the conventional means for the treatment of clinically complicated retinal detachment; To inject Medical silicone oil in vitreous chamber during operation, reach the healing purpose of detachment of retina.

When then Medical silicone oil is gone the ophthalmic filling in operation, be subject to the higher impact of viscosity of silicone oil, when adopting conventional piston syringe, when promoting silicone oil, resistance is larger, is not easy silicone oil filling is entered ophthalmic.So a lot of uses is the screw propelling syringe with power-assisting frame, because the screw propelling syringe processing technology is comparatively complicated, cause the operation cost higher.

[summary of the invention]

In order to overcome the deficiency in background technology, the utility model discloses a kind of silicone oil injector, utilize depression bar and coordinating of lifting rod to form reinforcement, make the comparatively glutinous silicone oil that gathers can be filled into comparatively easily ophthalmic, effectively overcome the deficiencies in the prior art.

For achieving the above object, this utility model adopts following technical scheme:

a kind of silicone oil injector, comprise depression bar, lifting rod, the piston pushing ram, piston and injection tube, the middle part of depression bar is fixedly connected with an end of piston pushing ram, described depression bar and piston pushing ram are " T " character form structure, the middle part of piston pushing ram is in the perforation at lifting rod middle part, the piston of piston pushing ram other end setting and the cavity inner wall of injection tube are slidably matched, the external screw thread that described injection tube one end outer edge surface arranges connects the female thread that arranges in the lifting rod medial recess, described lifting rod and injection tube form " T " character form structure, the other end at injection tube is provided with the connection nipple, perforation is connected to the cavity of injection tube by the outer end that connects nipple.

Described silicone oil injector is surrounded with at least one loop projection on the connection nipple of injection tube.

Described silicone oil injector, cover has rubber cap, described rubber cap to be provided with the hole of corresponding perforation on the connection nipple of injection tube.

Described silicone oil injector is provided with rule on injection tube.

Described silicone oil injector is provided with the connection cylinder at the middle part of depression bar, and screw is arranged on the end face that connects cylinder, the screw terminal of piston pushing ram one end be connected the cylinder end face on the screw connection.

Owing to having adopted technique scheme, the utlity model has following beneficial effect:

Silicone oil injector described in the utility model, by original finger pressure propelling piston handle being changed to the depression bar of palm pressure type, the lifting rod of synchronous injection tube upper end setting is carried on four fingers, make the comparatively glutinous silicone oil that gathers can coordinating by depression bar and lifting rod, promote comparatively easily silicone oil filling and enter ophthalmic, the pintle that when injecting in order to overcome, hypertonia causes breaks away from and connects nipple, and this utility model utilizes the expansive force of rubber cap, can guarantee that pintle can not break away from; This utility model can be made as the disposable silicone oil injector of plastics, or adopts rustless steel, glass material repeatedly to use.

[description of drawings]

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

Fig. 2 is the perspective view of this utility model depression bar;

Fig. 3 is lifting rod structural representation of the present utility model;

In figure: 1, depression bar; 2, connect cylinder; 3, screw terminal; 4, lifting rod; 5, perforation; 6, external screw thread; 7, piston pushing ram; 8, injection tube; 9, cavity; 10, piston; 11, perforation; 12, annular projection; 13, rubber cap; 14, screw; 15, female thread.

[specific embodiment]

Can explain in more detail this utility model by the following examples, this utility model is not limited to the following examples, and open the purpose of this utility model is intended to protect all changes and improvements in this utility model scope;

by reference to the accompanying drawings 1, silicone oil injector described in 2 or 3, comprise depression bar 1, lifting rod 4, piston pushing ram 7, piston 10 and injection tube 8, be provided with at the middle part of depression bar 1 and connect cylinder 2, screw 14 is arranged on the end face that connects cylinder 2, the screw terminal 3 of piston pushing ram 7 one ends connects with screw 14 on being connected cylinder 2 end faces, described depression bar 1 and piston pushing ram 7 are " T " character form structure, the middle part of piston pushing ram 7 is in the perforation 5 at lifting rod 4 middle parts, the piston 10 of piston pushing ram 7 other end settings is slidably matched with cavity 9 inwalls of injection tube 8, be provided with rule on injection tube 8, the external screw thread 6 that described injection tube 8 one end outer edge surfaces arrange connects the female thread 15 that arranges in lifting rod 4 medial recess, described lifting rod 4 and injection tube 8 form " T " character form structure, the other end at injection tube 8 is provided with the connection nipple, be surrounded with at least one loop projection 12 on the connection nipple of injection tube 8, perforation 11 is connected to the cavity 9 of injection tube 8 by the outer end that connects nipple, cover has rubber cap 13 on the connection nipple of injection tube 8, described rubber cap 13 is provided with the hole of corresponding perforation 11.

Implement silicone oil injector described in the utility model, if when this utility model is disposable, but when producer's packing silicone oil, in the described injection tube 8 of silicone oil injector of the present utility model of can directly silicone oil being packed into, the secondary pollution that occurs in the time of can avoiding changing container; The silicone oil of maybe being packed in this utility model scene of sealing; Utilize palm and finger jointly to exert pressure during use, depression bar 1, lifting rod 4 combineds effect just can promote comparatively easily silicone oil filling with silicone oil and enter ophthalmic.

This utility model does not describe part in detail and is prior art.

Claims

1. silicone oil injector, comprise depression bar (1), lifting rod (4), piston pushing ram (7), piston (10) and injection tube (8), it is characterized in that: the middle part of depression bar (1) is fixedly connected with an end of piston pushing ram (7), described depression bar (1) and piston pushing ram (7) are " T " character form structure, the middle part of piston pushing ram (7) is in the perforation (5) at lifting rod (4) middle part, the piston (10) that piston pushing ram (7) other end arranges is slidably matched with cavity (9) inwall of injection tube (8), the external screw thread (6) that described injection tube (8) one end outer edge surfaces arrange connects the female thread (15) that arranges in lifting rod (4) medial recess, described lifting rod (4) and injection tube (8) form " T " character form structure, the other end at injection tube (8) is provided with the connection nipple, perforation (11) is connected to the cavity (9) of injection tube (8) by the outer end that connects nipple.

2. silicone oil injector according to claim 1, is characterized in that: be surrounded with at least one loop projection (12) on the connection nipple of injection tube (8).

3. silicone oil injector according to claim 2, is characterized in that: overlap the hole that has rubber cap (13), described rubber cap (13) to be provided with corresponding perforation (11) on the connection nipple of injection tube (8).

4. silicone oil injector according to claim 1, is characterized in that: be provided with rule on injection tube (8).

5. silicone oil injector according to claim 1, it is characterized in that: be provided with connection cylinder (2) at the middle part of depression bar 1, screw (14) is arranged on the end face that connects cylinder (2), the screw terminal (3) of piston pushing ram (7) one ends be connected cylinder (2) end face on screw (14) connection.