CN108814808B

CN108814808B - Flow regulator for ophthalmology ultrasonic emulsification instrument

Info

Publication number: CN108814808B
Application number: CN201810388763.6A
Authority: CN
Inventors: 张静; 辛克海; 张竹林; 孙彦; 王德芹; 刘洁
Original assignee: Second Affiliated Hospital Of North Sichuan Medical College
Current assignee: Second Affiliated Hospital Of North Sichuan Medical College
Priority date: 2018-04-27
Filing date: 2018-04-27
Publication date: 2021-03-19
Anticipated expiration: 2038-04-27
Also published as: CN108814808A

Abstract

The invention discloses a flow regulator for an ophthalmic phacoemulsification instrument, which comprises a base pipe, wherein the upper end of the base pipe is in threaded connection with a spiral cover, the upper end of the spiral cover is provided with an upper connecting pipe, the inner side surface of the spiral cover is fixedly provided with an adjusting shaft through a transition plate, and the axis of the adjusting shaft is the same as that of the base pipe. Has good treatment effect and high safety.

Description

Flow regulator for ophthalmology ultrasonic emulsification instrument

Technical Field

The invention relates to the technical field of medical equipment, in particular to a flow regulator for an ophthalmic phacoemulsification instrument.

Background

The phacoemulsification treatment of cataract is to use a phacoemulsification instrument, to crush lens nucleus by using ultrasonic waves through a cornea or sclera incision with a size of 3-5mm to form chyle, then to be sucked out together with cortex, to remain the capsular membrane behind the lens after the operation, to be implanted into a posterior chamber type artificial lens at the same time, at present, the medical field at home and abroad adopts the cataract extraction treatment, to extract turbid lens and implant an artificial lens, to implant the artificial lens in an eye after the operation or to wear glasses or corneal contact lenses to correct vision, to control the flow when the lens is absorbed, to avoid the iris, even the cornea, in the anterior chamber of the eye from being damaged by overlarge pressure, and to improve the safety of the operation.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the existing defects, and provide a flow regulator for an ophthalmologic ultrasonic emulsification instrument, which has a simple structure, can be conveniently disassembled and cleaned, regulates the flow by changing the cross section, ensures stable and controllable pressure when a crystalline lens is sucked, improves the safety of the operation, is convenient to use, and can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a flow regulator for ophthalmology ultrasonic emulsification appearance, includes the parent tube, the upper end threaded connection of parent tube has the spiral shell, the upper end of spiral shell is equipped with the takeover, the medial surface of spiral shell is fixed with the regulating spindle through crossing the cab apron, and the axis of regulating spindle is the same with the axis of parent tube, the lower extreme side radial distribution of regulating spindle has the side lever, the lower extreme of side lever passes through the pressure ring and fixes continuously, the lower terminal surface transitional coupling of parent tube has the shrink tube, the outside of shrink tube is equipped with the sleeve pipe, the lower terminal surface equidistance of shrink tube is fixed with four dead levers, the dead lever is in the inboard of clamping ring, the dead lever is the same with the parent tube axial, the lower extreme of dead lever is fixed with the fixed plate, and two adjacent dead.

As a preferable technical scheme of the invention, the fixing plate is a trapezoidal plate, and the lower end face of the pressing ring is in contact with the inclined face of the fixing plate.

As a preferred technical scheme of the invention, the upper end of the sleeve is in threaded connection with the outer side surface of the middle part of the base pipe, and the lower port of the sleeve is provided with a lower connecting pipe.

As a preferred technical scheme of the invention, the contraction pipe comprises an elastic pipe, the upper end of the elastic pipe is fixedly connected with the lower end of the base pipe, four inclined grooves are radially distributed on the side surface of the lower end of the elastic pipe, and the fixing rod is arranged on the lower end surface of the elastic pipe corresponding to the inclined grooves.

As a preferred technical scheme of the invention, a clamping block is fixed on the outer side surface of the elastic tube between adjacent chutes, and a clamping groove is arranged at the position of the inner side surface of the sleeve corresponding to the clamping block.

Compared with the prior art, the invention has the beneficial effects that: this flow regulator for ophthalmology phacoemulsification appearance, moreover, the steam generator is simple in structure, high durability and convenient use, spiral shell and sleeve pipe pass through threaded connection's method and link to each other with the parent tube, convenient production and processing, be convenient for simultaneously to inside shrink tube, parts such as dead lever wash, through the effective area of the deformation control export cross-section of elasticity pipe lower port, thereby play the effect of control flow, can adjust through rotatory spiral shell, it is convenient to adjust, suitable different cataract degree or phacoemulsification degree's absorption treatment, the eyeball damage that has avoided pressure too big or unstability to cause, the treatment is effectual, and the security is high.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic longitudinal sectional view of the present invention;

FIG. 3 is a partial schematic view of the present invention;

FIG. 4 is a cross-sectional view of the present invention.

In the figure: the device comprises a base pipe 1, a spiral cover 2, an upper connecting pipe 3, a transition plate 4, an adjusting shaft 5, a side rod 501, a contraction pipe 6, an elastic pipe 601, a chute 602, a fixture block 603, a sleeve 7, a lower connecting pipe 701, a fixing rod 8, a fixing plate 801, a pressing ring 9 and a connecting spring 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a flow regulator for an ophthalmic phacoemulsification instrument comprises a base tube 1, a spiral cover 2 is in threaded connection with the upper end of the base tube 1, an upper connecting tube 3 is arranged at the upper end of the spiral cover 2, an adjusting shaft 5 is fixed on the inner side surface of the spiral cover 2 through a transition plate 4, the axis of the adjusting shaft 5 is the same as that of the base tube 1, side rods 501 are radially distributed on the side surface of the lower end of the adjusting shaft 5, the lower ends of the side rods 501 are fixedly connected through a pressing ring 9, a contraction tube 6 is in transitional connection with the lower end surface of the base tube 1, a sleeve 7 is arranged on the outer side of the contraction tube 6, the upper end of the sleeve 7 is in threaded connection with the outer side surface of the middle of the base tube 1, a lower port of the sleeve 7 is provided with a lower portion 701, the contraction tube 6 comprises an elastic tube 601, the upper end of which is fixedly connected with the lower end of the base tube 1, four inclined grooves 602, the flow regulator for the ophthalmic ultrasonic emulsification instrument is simple in structure and convenient to use, the spiral cover 2 and the sleeve 7 are connected with the base tube 1 through a threaded connection method, the production and the processing are convenient, the internal contracted tube 6, the fixed rods 8 are convenient to clean, the effective area of the outlet section is controlled through the deformation of the lower port of the elastic tube 601, the flow is controlled, and the flow can be regulated by rotating the spiral cover 2, the adjustable eye drop is convenient to adjust, is suitable for suction treatment of different cataract degrees or phacoemulsification degrees, avoids eyeball injury caused by overlarge pressure or instability, and is good in treatment effect and high in safety.

When in use: during adjustment, the spiral cover 2 is rotated to move the adjusting shaft 5, the pressing ring 9 presses the inclined surface of the fixing plate 801 downwards, the inclined groove 602 of the elastic tube 601 and the connecting spring 10 are compressed synchronously, the concave deformation of the inclined groove is increased, the effective section is reduced, and the flow of emulsified crystalline lens is changed when passing through.

The invention has simple structure, can be conveniently disassembled and cleaned, regulates the flow by changing the section, ensures stable and controllable pressure when absorbing the crystalline lens, improves the safety of the operation and has convenient use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flow regulator for ophthalmology phacoemulsification appearance, includes parent tube (1), its characterized in that: the upper end of the base pipe (1) is in threaded connection with a spiral cover (2), the upper end of the spiral cover (2) is provided with an upper connecting pipe (3), the inner side surface of the spiral cover (2) is fixed with an adjusting shaft (5) through a transition plate (4), the axis of the adjusting shaft (5) is the same as that of the base pipe (1), the side surface of the lower end of the adjusting shaft (5) is radially distributed with a side lever (501), the lower end of the side lever (501) is fixedly connected through a pressing ring (9), the lower end surface of the base pipe (1) is in transitional connection with a shrinkage pipe (6), the outer side of the shrinkage pipe (6) is provided with a sleeve (7), the lower end surface of the shrinkage pipe (6) is equidistantly fixed with four fixing rods (8), the fixing rods (8) are positioned on the inner side of the pressing ring (9), the fixing rods (8) are axially the same as the base pipe (1), the lower, the lower ends of two adjacent fixing rods (8) are fixedly connected through a connecting spring (10); the fixing plate (801) is a trapezoidal plate, and the lower end face of the pressing ring (9) is in contact with the inclined face of the fixing plate (801); the upper end of the sleeve (7) is in threaded connection with the outer side surface of the middle part of the base pipe (1), and a lower port of the sleeve (7) is provided with a lower connecting pipe (701); the telescopic pipe (6) comprises an elastic pipe (601) of which the upper end is fixedly connected with the lower end of the base pipe (1), four chutes (602) are radially distributed on the side surface of the lower end of the elastic pipe (601), the fixing rod (8) is arranged on the lower end surface of the elastic pipe (601) corresponding to the chutes (602), clamping blocks (603) are fixed on the outer side surface of the elastic pipe (601) between every two adjacent chutes (602), and clamping grooves are formed in the positions, corresponding to the clamping blocks (603), of the inner side surface of the sleeve (7).