RO127261A2

RO127261A2 - Knife for choroidectomiy

Info

Publication number: RO127261A2
Application number: ROA201000962A
Authority: RO
Inventors: Florian Baltă; Dinu Mihai Huzum
Original assignee: Florian Baltă; Dinu Mihai Huzum
Priority date: 2010-10-12
Filing date: 2010-10-12
Publication date: 2012-04-30

Abstract

The invention relates to a knife meant to be used in ophthalmic surgery. According to the invention, the knife consists of an incision blade (1) assembled by wedging inside a stainless metal tube (2) of adequate size mounted in a handle (3), the blade (1) having the shape of a feather whose apex angle is suitably calculated so that the axial force employed to press the blade (2) into the metal tube (2) generates, by decomposition thereof on the inclined plane, high value radial forces leading to elastic-plastic deformation and friction forces with a view to achieving the assembling purposes without using additional assembling elements.

Description

Prezenta invenție se refera la metoda de obținere a unui cutit pentru coroidotomie prin încastrarea unei lame pentru incizie (1) folosind efectul impanarii intr-un tub metalic inoxidabil (2) de dimensiuni corespunzătoare, care este montat intr-un mâner (3) in vederea obținerii unui instrument pentru microchirurgie oftalmologica destinat intervențiilor chirurgicale intraoculare (fig. 1).The present invention relates to the method of obtaining a choroidotomy knife by inserting an incision blade (1) using the effect of wrapping in a stainless steel tube (2) of corresponding size, which is mounted in a handle (3) for viewing. obtaining an instrument for ophthalmological microsurgery intended for intraocular surgery (fig. 1).

Cutitul pentru coroidotomie este un instrument destinat intervențiilor operatorii oftalmologice, cu ajutorul caruia se poate pătrunde in interiorul globului ocular permițând manevre de secționare a membranelor componente ale acestuia in principal pentru secționarea coroidei.The choroidotomy knife is an instrument intended for ophthalmological operations, with the help of which it can penetrate inside the eyeball, allowing maneuvers to cut its component membranes mainly for choroid sectioning.

Instrumentele chirurgicale cu care se poate efectua secționarea membranelor sunt foarfecele intraoculare care au mai multe elemente componente cu forme geometrice complicate greu de obtinut tehnologic si implicit cu costuri mai mari.The surgical instruments with which the sectioning of the membranes can be performed are the intraocular scissors that have several component elements with complicated geometric shapes that are difficult to obtain technologically and implicitly with higher costs.

Foarfecele intraoculare au dezavantajul ca lungimea de secționare la o manevrare este mica si de asemenea avand multe piese componente sunt dificil de intretinut si curatat.The intraocular shears have the disadvantage that the sectioning length when handling is small and also having many component parts are difficult to maintain and clean.

Problema tehnica pe care prezenta invenție isi propune sa o soluționeze este obținerea unui instrument medical si anume cutit pentru coroidotomie care sa aiba dimensiuni reduse pentru încadrarea in gabaritul corespunzător tehnicilor de intervenție chirurgicala actuale, care permite obținerea il-2 0 1 0 - 0 0 9 6 2 - 1 2 -ίο- 2010 iy unei secționări de lungime mare a membranei componente a globului ocular si anume coroida.The technical problem that the present invention intends to solve is to obtain a medical instrument, namely a choroidotomy knife, which will have small dimensions for fitting into the gauge corresponding to the current surgical techniques, which allows to obtain it. 2 0 1 0 - 0 0 9 6 2 - 1 2 -ίο- 2010 iy of a large length sectioning of the component membrane of the eyeball, namely the choroid.

Prezenta invenție rezolva problemele tehnice de obținere a unui cutit pentru coroidotomie prin asamblarea unei lame pentru incizie (1) intr-un tub metalic inoxidabil (2) de dimensiuni corespunzătoare care este montat intr-un mâner (3) in conformitate cu fig. 1. Asamblarea lamei pentru ioncizie(l) in tubul metalic inoxidabil (2) se face prin impanare, lama pentru incizie (1) avand o forma de pana cu un unghi la vârf cu o valoare calculata corespunzător, astfel incat forța axiala cu care este presata lama de incizie (1) in tubul metalic inoxidabil (2) generează prin descompunerea acesteia pe plan înclinat forte radiale de valoare mare care duc la producerea de deformatii elasto-plastice si forte de frecare cu scopul asamblării celor doua componente fara alte elemente de asamblare.The present invention solves the technical problems of obtaining a choroidotomy knife by assembling an incision blade (1) into a correspondingly sized stainless steel tube (2) which is mounted in a handle (3) according to FIG. 1. The ioncision blade assembly (l) in the stainless steel tube (2) is made by means of a panel, the incision blade (1) having a wedge-shaped shape with a correspondingly calculated value, so that the axial force with which it is pressed the incision blade (1) in the stainless steel tube (2) generates by its decomposition on an inclined plane of high value radial forces that lead to the production of elasto-plastic deformations and frictional forces in order to assemble the two components without any other elements of assembly. .

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REVENDICĂRI

Claims

1. The choroidotomy knife, according to the invention, is obtained by the paired cutting of an incision blade (1) in a stainless metal tube (2) as a result of the inclined plane decomposition of the axial pressing force into radial forces with the effect of obtaining assembly of the two components without other assembly elements.