CN201200536Y

CN201200536Y - Synchronous equivalent injection and suction device for ophthalmological operation

Info

Publication number: CN201200536Y
Application number: CNU2008200234593U
Authority: CN
Inventors: 石磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-05
Filing date: 2008-06-05
Publication date: 2009-03-04
Anticipated expiration: 2018-06-05

Abstract

The utility model relates to a synchronous commensurable injector used for the ophthalmic operation, which belongs to the technical field of a medical appliance. The synchronous commensurable injector is characterized in that the inside of an injection tube is divided into two square cavities, the sections of which are same in size, the front end of each cavity is respectively provided with a connector communicated with the cavity, and two needle stands at the rear ends of double-tube injection needle heads are respectively sleeved on the two connectors; the inside of each cavity is respectively in sliding and sealing connection with a piston with a rack, the tube wall of the injection tube between the rear ends of the two racks is fixed with a driving gear which is respectively meshed with the two racks and is provided with a handle through a rotating shaft, and the tube wall of another injection tube at the other side of each rack is also respectively fixed with a driven gear which is meshed with the rack through another rotating shaft. The utility model has the advantages that by rotating the driving gear, one piston is enabled to move forwards to eject perfusate in one cavity, and the other piston backs off to equivalently inject liquid in the anterior chamber into the other cavity, so that the liquids injected and ejected into the anterior chamber are equal, thereby the anterior chamber is kept to be stable, and complicating diseases are reduced.

Description

Ophthalmologic operation is with synchronous equivalent injection aspirator

Technical field

This utility model belongs to technical field of medical instruments, and specifically a kind of ophthalmologic operation is with synchronous equivalent injection aspirator.

Background technology

At present, in clinical cataract operation or anterior chamber's flush operation, usually use injection aspirator, injection aspirator relies on the height of regulating the infusion liquid transfusion bottle to regulate the amount that infusion liquid enters ophthalmic, come the negative pressure of suction Controlled needle tubing to regulate aspiration by the doctor with hands, both are asynchronous, are difficult to accomplish the synchronous equivalent of groundwater increment and aspiration, cause that easily the anterior chamber fluctuates.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and makes perfusion and aspirate synchronous equivalent and finish, and guarantees that the anterior chamber is stable, reduces ophthalmologic operation that complication takes place with synchronous equivalent injection aspirator.

The purpose of this utility model is achieved in that this ophthalmologic operation is made of injection tube, two-tube notes suction spindle head, piston, tooth bar with synchronous equivalent injection aspirator, it is quadrate cavity that injection tube inside is divided into two identical cross sections of size, each cavity front end is respectively equipped with the joint that communicates with it, and two needle stands of two-tube notes suction spindle head rear end are set on two joints; Each cavity inside all respectively slipper seal connecting the piston that has tooth bar, on the injection tube barrel between two tooth bar rear ends, fixing the driving gear that has handle that meshes respectively with two tooth bars, on the injection tube barrel of each tooth bar opposite side, also fixing the driven gear that meshes with tooth bar by rotating shaft respectively by rotating shaft.

During use, rotate driving gear with handle, driving gear and driven gear drive a tooth bar reach, a tooth bar retreats, thereby drives a piston reach, and a piston retreats, the piston that moves forward is released the infusion liquid in the cavity, the piston that moves backward simultaneously just the liquid aliquot in the anterior chamber suck in another cavity, the amount of liquid that pours in the anterior chamber and discharge is equated, thereby it is stable to keep the anterior chamber.

Advantage of the present utility model: simple in structure, easy to use, rotate driving gear with handle, can make piston reach of rack drives, a piston retreats, and the piston that moves forward is released the infusion liquid in the cavity, the piston that moves backward simultaneously just the liquid aliquot in the anterior chamber suck in another cavity, the amount of liquid that pours in the anterior chamber and discharge is equated, stablize, reduce complication and take place thereby keep the anterior chamber.

Description of drawings

Accompanying drawing is a structural representation of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing this utility model is described in further detail: this ophthalmologic operation is made of injection tube 1, two-tube notes suction spindle head 2, piston 3, tooth bar 4 with synchronous equivalent injection aspirator, it is quadrate cavity that injection tube 1 inside is divided into two identical cross sections of size, each cavity front end is respectively equipped with the joint that communicates with it, and two needle stands of two-tube notes suction spindle head 2 rear ends are set on two joints; Each cavity inside all respectively slipper seal connecting the piston 3 that has tooth bar 4, on injection tube 1 barrel between two tooth bar 4 rear ends, fixing the driving gear that has handle 65 that meshes respectively with two tooth bars 4, on injection tube 1 barrel of each tooth bar 4 opposite side, also fixing the driven gear 7 that meshes with tooth bar 4 by rotating shaft respectively by rotating shaft.

Claims

1, a kind of ophthalmologic operation is with synchronous equivalent injection aspirator, constitute by injection tube (1), two-tube notes suction spindle head (2), piston (3), tooth bar (4), it is characterized in that it is quadrate cavity that injection tube (1) inside is divided into two identical cross sections of size, each cavity front end is respectively equipped with the joint that communicates with it, and two needle stands of two-tube notes suction spindle head (2) rear end are set on two joints; Each cavity inside all respectively slipper seal connecting the piston (3) that has tooth bar (4), on injection tube (1) barrel between two tooth bars (4) rear end, fixing the driving gear that has handle (6) (5) that meshes respectively with two tooth bars (4), on injection tube (1) barrel of each tooth bar (4) opposite side, also fixing the driven gear (7) that meshes with tooth bar (4) by rotating shaft respectively by rotating shaft.