CN2291910Y

CN2291910Y - Coaxial perfusion type artificial crystal embedding apparatus

Info

Publication number: CN2291910Y
Application number: CN 97232637
Authority: CN
Inventors: 李钟实
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-18
Filing date: 1997-04-18
Publication date: 1998-09-23
Anticipated expiration: 2007-04-18

Abstract

The utility model relates to a coaxial perfusion type artificial crystal embedding apparatus which is composed of an inner core (2), an outer sleeve pipe (6), a spring (7) and a directing device (11). The inner core (2) is tubular, and a rear end is vertically bent and connected with a liquid delivery pipe, and the spring (7) is sheathed in front of an inner core handle (13). The outer sleeve pipe (6) comprises a sleeve pipe rod (14) and a non-fixation holding needle head (9). The outer sleeve pipe (6) is sheathed at the external side of the inner core (2) and the spring (7). The directing device (11) comprises an oriented rod (5) arranged at the rear end of outer sleeve pipe (6) and a guide slot (3) arranged on the inner core handle (13). The directing device (11) is connected with the outer sleeve pipe (6) and the inner core (2), and fixes the direction of the inner core. The utility model has the advantages of high efficiency and low operation cost.

Description

Coaxial filling type intraocular lens injector

This utility model relates to a kind of improvement of intraocular lens injector, and specifically a kind of coaxial filling type intraocular lens injector is applicable to the cataract intraocular lens implant surgery.

Generally acknowledge in the world today that it is the cataractous desirable modus operandi of treatment that extracapsular cataract extraction merges the posterior chamber intraocular lens implantation.Artificial intraocular lenses's method for implantation mainly contains rotary and presses two kinds of loop formulas, and operation needs finish under visco-elastic material, and abroad generally like this, but this visco-elastic material costs an arm and a leg, and is unsuitable for domestic.At present the domestic people of having creatively finishes artificial intraocular lenses's (posterior chamber type) and implants under lasting liquid perfusion, but the liquid perfusion is a system independently, need finish with conventional apparatus in addition, and used apparatus is implanted tweezer and artificial intraocular lenses's normotopia hook etc. for the artificial intraocular lenses.Its major defect is as " a kind of intraocular lens injector " (patent No.: 95233002.4) as described in the patent specification.I carry out multi-mode operation posterior chamber implantable artificial intraocular lenses though can enter the anterior chamber under less space at above-mentioned " a kind of intraocular lens injector " of invention, make and once enter the crystalline success rate raising of anterior chamber's implantable artificial.But its inner core is an entity, and the liquid perfusion can not be provided, and also can not carry out artificial intraocular lenses's normotopia adjustment.

The purpose of this utility model is on the basis of " a kind of intraocular lens injector ", provides a kind of and can enter anterior chamber's multi-mode operation under less space, the liquid perfusion can be provided again simultaneously and the artificial intraocular lenses is carried out the intraocular lens injector that normotopia is adjusted.So that save the operation cost, improve operation efficient.

This utility model is achieved in that a kind of intraocular lens injector of being made up of inner core, trocar sheath, spring and orienting device.Inner core is a stainless steel tube, and shank outsourcing medical plastic is made, and the rectangular bending in steel pipe rear end is also stretched out shank and made the inner core intrusion pipe, so that be connected with the outside liquid intrusion pipe.Partly do a guide slot that adapts with the orientation lever diameter at the medical plastic of outsourcing, inner core front end clamp port antetheca is manufactured an acus.Trocar sheath is made of the not stationarity clamping syringe needle of front end and the telescopic mast made from the medical plastic pipe of rear end.The telescopic mast rear end makes that a sleeve ring is prominent, and front end has a nipple, is connected with stationarity clamping syringe needle not.The prominent place of near between the two annular plate is with screw fixed orientation bar.The orientation lever at the gathering sill of inner core and telescopic mast rear portion constitutes orienting device, and orientation lever is circular stainless steel, and an end is fixed by screw.During installation, be positioned over spring before the inner core shank and be enclosed within outside the front end inner core, inner core is stretched out from the telescopic mast pars papillaris, light pressing spring makes the inner core orientation notches corresponding with the orientation lever hole on the telescopic mast, orientation lever is put into and fixed with screw.In the front loaded not stationarity of the inner core clamping syringe needle, and the position of adjusting both clamp ports.Can use behind the external intrusion pipe.

The utility model has the advantages that: the first, the liquid perfusion is provided, do not use visco-elastic material implantable artificial crystal, reduce surgery cost.The second, the inner core front end has the function of artificial intraocular lenses's normotopia hook concurrently, can make artificial intraocular lenses's normotopia and regulate, and makes apparatus once enter the crystalline success rate of anterior chamber's implantable artificial and further improves.The 3rd, overcoat is split type, easy to manufacture, and orienting device changes the channel bar formula into, uses more flexible.

Accompanying drawing 1, this utility model cross-sectional schematic.

Accompanying drawing 2, the inner core front end is implanted the hook cutaway view.

Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing.Make inner core 2 with stainless steel tube, parcels medical plastic in inner core 2 rear portions is made inner core handle 13, and the rustless steel inner core vertically stretches out shank in the rear end bending, its position will the right side or above, being expert at is not so hindered when counterclockwise rotating the implantable artificial crystal.Do a guide slot 3 at inner core 2 shank mid portions, inner core front end clamp port 10 antethecas are done a nadel 12 (Fig. 2), make the usefulness of artificial intraocular lenses's normotopia.It is prominent 4 that a sleeve ring is done in the rear end of telescopic mast 14, is convenient to secure grip apparatus and accurately firmly, and this prominent pre-installed orientation lever 5 is used to connect inner core 2 and telescopic mast 14, and fixing inner core direction.The front portion of telescopic mast 14 is done a telescopic mast nipple 8 and is connected as the forward not stationarity of trocar sheath clamping syringe needle 9.During installation, spring 7 is placed on the anterior inner core, the inner core front portion is stretched out by telescopic mast nipple 8, the light inner core 2 of pressing makes inner core guide slot 3 corresponding with the orientation lever hole on the telescopic mast 14, orientation lever 5 is passed inner core guide slot 3 and fix with screw, regulate the position with inner core front end clamp port 10, stationarity clamping syringe needle 9 is not placed in inner core 2 front ends, and is connected with telescopic mast nipple 8.At last inner core intrusion pipe 1 is connected with the outside liquid intrusion pipe.Can operate continuing to do under the liquid perfusion arbitrary mode that artificial crystal implants like this, and adjust the artificial intraocular lenses position can after once entering the anterior chamber, make it reach 10 (d) position the time, finish artificial intraocular lenses's implant surgery better.

Claims

1, a kind of coaxial filling type intraocular lens injector of forming by inner core (2), trocar sheath (6), spring (7) and orienting device (11), inner core (2) is positioned at trocar sheath (6), spring (7) is enclosed within inner core (2) front portion, orienting device (11) connects inner core (2) and telescopic mast (14), and the fixing direction of inner core (3), it is characterized in that inner core (2) is a hollow pipe, and its end is a right-angle bending, and an acus (12) is arranged on the antetheca of inner core front end clamp port (10).

2, coaxial filling type intraocular lens injector according to claim 1 is characterized in that described orienting device (11), is made up of guide slot (3) on the inner core handle (13) and the orientation lever (5) on the telescopic mast (14).

3, coaxial filling type intraocular lens injector according to claim 1 is characterized in that described trocar sheath (6) is made up of telescopic mast (14) and on-fixed clamping syringe needle (9) two parts.

4, coaxial filling type intraocular lens injector according to claim 3 is characterized in that described telescopic mast (14) end has a sleeve ring dash forward (4).