CN2311252Y

CN2311252Y - Medical crystal nucleus cutter

Info

Publication number: CN2311252Y
Application number: CN 97233594
Authority: CN
Inventors: 卢佩勇
Original assignee: No88 Hospital P L A
Current assignee: No88 Hospital P L A
Priority date: 1997-07-09
Filing date: 1997-07-09
Publication date: 1999-03-24
Anticipated expiration: 2007-07-09

Abstract

The utility model discloses a medical crystal nucleus cutter which is composed of a main body structure and a linkage structure. The problem that peripherical tissue is easy to damage when ophthalmological cataract excision operations are operated by two hands is solved. By the adoption of the instrument, the use is flexible, the medical crystal nucleus cutter can be operated by one hand, and the danger that the peripherical tissue is injured by cutting edges does not exist. The utility model has the advantages of low cost, long service life, convenient sterilization and good clinical application effect.

Description

Medical crystal nuclear cutter

This utility model belongs to medical mechanical domain, specifically a kind of operating theater instruments that is used for the ophthalmology cataract extraction.

The Yao Ke of Zhejiang Medical university ophthalmology professor uses bimanualness in the operation in the prior art, wherein a hand-held backing plate, another hand-held nuclear cutter of cutting, it is 2 half that cataractous nuclear is cut the anterior chamber, and then takes out respectively, its objective is the otch that dwindles when taking out crystal nuclear in the operation, reduce the complication (as astigmatism) that postoperative occurs, and weak point is bimanualness, finishes the action of cutting nuclear in the room before eyes narrow space, and both hands cooperate very difficult the grasp, difficulty is big, damages perienchyma easily.

The purpose of this utility model, exactly in order to overcome the deficiency that exists in the prior art, and provide a kind of one-handed performance, flexibly, crystal nuclear cutter easily.

This utility model is to realize like this, it is made up of agent structure and serial verb construction, it is characterized in that described agent structure is to constitute by connector, adjusting knob with interconnective fixed sleeving of connector and handle, and adjusting knob is contained in the front portion of connector, serial verb construction is made of the sliding bar that is through at the finer wire in the fixed sleeving and be through in the sliding shoe, and the two ends of finer wire are passed the aperture of sliding bar front end and fixed.

The fastening back pumpback of aperture of sliding bar front end is passed at finer wire two ends in this utility model serial verb construction, and the adjusting knob that moves right can be brought the finer wire two ends into and form snare in the fixed sleeving.

Be described in detail this utility model below in conjunction with embodiment and accompanying drawing thereof:

Accompanying drawing is a population structure sketch map of the present utility model.

The crystal nuclear cutter of forming by agent structure and serial verb construction in conjunction with the accompanying drawings, during operation, decompose sterilization crystal nuclear cutter, with balance liquid flushing back assembling, at first sliding shoe 4 is put into from the afterbody of connector 6, and with adjusting knob 3 location, the front portion of sliding bar 5 from fixed sleeving 2 penetrated, and the centre bore by sliding shoe 4, fixing with adjusting knob 3 then, again handle 7 and connector 6 are spun, mobile adjusting knob 3 makes the front end of sliding bar 5 stretch out fixed sleeving 2, with the two ends of finer wire 1 pass the aperture of sliding bar 5 front ends fastening after, and wire loop is reduced in the fixed sleeving 2, the anterior lens capsule continuous circular shape is torn, the about 6-7mm of diameter, make crystal nuclear loosening and inject about 0.2ml methylcellulose the anterior chamber, hold the crystal nuclear cutter with the right hand, make fixed sleeving 2 stretch into the anterior chamber from corneoscleral junction 9-12 point tunnel otch, promotion adjusting knob 3 stretches out wire loop and is enclosed within the crystal nuclear center, back transposition joint knob 3, and wire loop is withdrawn in the fixed sleeving 2 again, crystal nuclear is cut into two halves, takes out respectively again.

The utility model compared with prior art has the following advantages:

1, use flexibly, and one-hand operation, the big I of wire loop is arbitrarily controlled in the room before eyes;

2, there is not the danger of cutter cut wound surrounding tissue;

3, cost is low, and long service life is not fragile, and sterilization is convenient.

Claims

1, a kind of medical crystal nuclear cutter, form by agent structure and serial verb construction, it is characterized in that described agent structure is to be made of fixed sleeving (2), adjusting knob (3), connector (6) and handle (7), serial verb construction is made up of the sliding bar (5) that is through at the finer wire (1) in the fixed sleeving (2) and be through in the sliding shoe (4), and finer wire (1) is fixed by the aperture of sliding bar (5) front end.

2, medical crystal nuclear cutter according to claim 1 is characterized in that finer wire (1) two ends pass pumpback behind the aperture of sliding bar (5) front end, and mobile adjusting knob (3) can be brought finer wire (1) two ends into and form snare in the fixed sleeving (2).