CN2214175Y

CN2214175Y - Artificial crystal implantation device

Info

Publication number: CN2214175Y
Application number: CN 95233002
Authority: CN
Inventors: 李钟实
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-01-03
Filing date: 1995-01-03
Publication date: 1995-12-06
Anticipated expiration: 2005-01-03

Abstract

The utility model discloses an artificial crystal implanting device, which is composed of an inner core, a wrapper tube, a spring, and a locating device, wherein, the inner core is composed of an inner core handle 1 and an inner core needle 3; the wrapper tube is composed of a wrapper tube head 8, a wrapper tube rod 7, and a wrapper tube cap 5; the locating device is composed of a guide groove 10 fixed at the inner wall of the wrapper tube rod 7, a guide piece 2 in the guide groove 10, and a locating screw 13 fixing the guide piece 2 at the inner core handle 1; the spring 11 is coated on the inner core and arranged in front of the guide piece 2. As the utility model is used, through using a U-shaped clamping mouth 9 of the wrapper tube head, or with the matching of the U-shaped clamping mouth 9 or a similar U-shaped clamping mouth 4 of the inner core needle, artificial crystals can be conveniently implanted into the rear chambers of eyes.

Description

Artificial crystal implantation device

This utility model relates to a kind of medical apparatus and instruments, and specifically a kind of artificial intraocular lenses (posterior chamber type) implantation device is applicable to the cataract intraocular lens implant surgery.

At present, in cataract operation, modern extracapsular cataract extraction merges the posterior chamber intraocular lens implantation and is acknowledged as optimal modus operandi, and operation is popularized day by day.Its used apparatus of performing the operation mainly is the crystal tweezer, it is bigger that the crystal tweezer exists horizontal opening and closing space, the anterior chamber need be than the great opening mouth, and when clamping crystal loop, easily get loose, the chance that passes in and out the anterior chamber repeatedly is more, causes tissue injury, and after-operation response is heavier, and the crystal tweezer is also extremely inconvenient when doing rotary implantation, influence operation quality.

The purpose of this utility model provides a kind of vertical clamping artificial intraocular lenses's implantation device, so that can be less at anterior chamber's opening, open hour are than under the short situation, the posterior chamber implantable artificial intraocular lenses, to reach the purpose of the shortcoming that the crystal tweezer that overcomes horizontal clamping artificial intraocular lenses produced, improve the success rate that once enters anterior chamber's posterior chamber implantable artificial intraocular lenses.

This utility model is achieved in that a kind of intraocular lens injector of being made up of inner core, trocar sheath, spring and positioner, inner core is to be made of inner core handle and inner core pin that thick, thin two sections different stainless steel silks are made, and the head of inner core pin is done one " ］ " the shape clamp port.Trocar sheath is that telescopic mast, the sleeve cap that the casing head made by stainless steel tube and medical plastic pipe are made constitutes, the casing head end open the different length in both sides "

" the shape clamp port, big of telescopic mast 2 appearances and sleeve cap appearance front portion are injection molded into screw-like, and sleeve cap is not held out a sleeve cap hole.Positioner is to be made of two gathering sills, two prerotation vanes and a location screw, two gathering sills are fixed in the telescopic mast symmetrically, two prerotation vanes are welded on the stainless steel ring that set screw arranged symmetrically, establish a spring in prerotation vane anterior cannula bar inside, during installation, make inner core pin " ］ by positioner " shape clamp port and casing head "

" shape clamp port opening direction is in a plane.With "

" the shape clamp port can not stationarity clamping, moves up and down by inner core, two clamp ports form a vertical closed clamp port, the clamping of fixing property.Use this utility model can reach no opening degree, use freely flexible purpose.

The utility model has the advantages that: simple in structure, volume is little, no horizontal opening and closing angle, firm to the clamping of crystal loop, flexible to operation, both be applicable to that rotary artificial intraocular lenses implanted, be applicable to again and press loop formula artificial intraocular lenses to implant,, also can enter anterior chamber's row posterior chamber intraocular lens and implant even after sewing up the incision, success rate obviously improves, and has alleviated after-operation response.

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

Accompanying drawing 2, cross-sectional schematic under this utility model duty.

In the accompanying drawing: 1---the inner core handle, 2---prerotation vane, 3---the inner core pin, 4---inner core pin " " shape clamp port, 5---sleeve cap, 6---the sleeve cap hole, 7---telescopic mast, 8---casing head, 9---" U " shape clamp port, 10---gathering sill, 11---spring, 12---the telescopic mast screw thread, 13---set screw.

Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing.

Make inner core with two sections stainless steel silks of thickness, the inner core rear portion is inner core handle (1), anterior is band " ］ " the inner core pin 3 of shape inner core pin clamp port 4, with a thin stainless steel tube (about the about 1mm of diameter) make the end be "

" casing head 8 of shape clamp port 9; make the telescopic mast 7 that appearance has screw thread 12 with the medical plastic pipe; telescopic mast 7 front ends are taper; glued joint with casing head 8 and be integral; sleeve cap 5 is connected threadably with telescopic mast 7; there is sleeve cap hole 6 sleeve cap 5 rear ends, positioner is by gathering sill 10, prerotation vane 2 and set screw 13 are formed, gathering sill 10 is fixed in the telescopic mast 7 symmetrically, prerotation vane 2 is that two stainless steel substrates of burn-oning symmetrically on stainless steel ring make, and its ring portion has a set screw 13, during installation, inner core inserts in the coalition of sleeve pipe 7 and casing head 8, put into spring 11, be inserted in prerotation vane 2, and make prerotation vane 2 put into gathering sill 10, rotation inner core handle 1 makes inner core pin " ］ " shape clamp port 4 and casing head " " shape clamp port 9 opening directions are in a plane, and " ］ " and the opening direction of shape clamp port 4 towards "

" minor face one side of clamp port 9, tightening set screw 13, the sleeve cap 5 of screwing on stretches out inner core handle 1 from sleeve cap hole 6, can use.

During use this utility model, can do rotary implantation according to operation people's custom method for implantation, or press the loop formula to implant, use separately "

" shape clamp port or " ］ " and shape with "

" the shape clamp port cooperate can finish slotting, hook respectively, press from both sides, draw, revolve, action such as pressure, finish artificial intraocular lenses's implant surgery preferably.

Claims

1, a kind of intraocular lens injector of being made up of inner core, trocar sheath, spring and positioner is characterized in that the head of inner core pin 3 has one " ］ " shape inner core pin clamp port 4, the end of casing head 8 have one "

" clamp port 9, with being fixed on the gathering sill 10 in the telescopic mast 7 symmetrically and being fixed on prerotation vane 2 on the inner core handle 1, keep inner core pin " ］ " shape clamp port 4 and casing head "

" shape clamp port 9 opening directions are in a plane, and " ］ " and the opening direction of shape clamp port 4 towards "

" shape clamp port 9 minor faces one side, in the telescopic mast 7 of spring 11 before prerotation vane 2.

2, intraocular lens injector according to claim 1 is characterized in that prerotation vane 2 is fixed on the inner core handle 1 with set screw 13.

3, intraocular lens injector according to claim 1 is characterized in that there is screw thread 12 big of telescopic mast 7 appearances and sleeve cap 5 appearance front portions.