ES2426020A1 - Combi micropinza-scissors for surgery of the anterior segment of the eye (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Combi micropinza-scissors for surgery of the anterior segment of the eye and cataracts, which combines in the same scissor blades a sharp area that serves as scissors and a flat area to serve as a clamp. The micropinza-scissor combi meets the requirements of the 23 gauge standard. In addition, the micropinza-scissor combi is useful for surgery of the posterior segment of the eye (vitreous and retina). (Machine-translation by Google Translate, not legally binding)

Description

Micro-scissor comb for surgery of the anterior segment of the eye.

Technical sector of the invention

The present invention belongs to the field of the art of

the

instruments for the surgery of the eye, plus

specifically

for the surgery of the segment previous or

posterior and

of the falls .

Background of the Invention

In surgery of the anterior or posterior segment of the eye and, mainly, in cataract surgery, it is important to reduce as much as possible the time invested in the surgical intervention, since this achieves, among other objectives, less trauma to the eye. corneal endothelium! and a lower risk of postsurgical infection.

During surgery, different types of instruments are used for each of the surgical maneuvers, which increases the number of inputs and outputs of instruments in the anterior or posterior chamber and, these factors reduce the possibility of achieving the objectives described. in the previous paragraph. If simplifying the surgical instruments used during surgical maneuvers will improve the results.

Progress in eye surgery is due, among other factors, to developing the intervention through micro-incisions, which is why it is necessary to invent new surgical instruments.

The invention object of the present memory combines in a single instrument a clamp, a scissor and a millimeter ruler that allows the surgery to be performed through corneal microincisions, reducing the required instruments and the number of inputs and outputs of the instruments in the eye.

The following advantages of the Micro-scissor Combi can be described, among others, namely:

•

Expands to the correct size, an anterior capsulorhexis of less than adequate size (an anterior capsulorhexis is a type of maneuver in cataract surgery that involves continuous circular tearing of the anterior capsule to allow phacoemulsification of the crystalline nucleus).

•

Converts a posterior capsular rupture into a posterior continuous circular capsulorhexis.

•

Allows cutting of anterior and posterior capsular fibrosis bands

•

Allows the cutting and removal of membranes of the inflammatory type in the anterior chamber

•

It allows access to the anterior chamber through corneal incisions smaller than 1 mm in diameter.

•

It reduces the time invested in the surgery.

Description of the Invention

The Combi micropinza-ti jera is a microsurgery instrument for the eye that includes an ergonomic handle, a hollow tube located at one end at one end of the ergonomic handle, scissors located at the other end of the hollow tube and a mechanism for open and close

the scissors, in such a way that the proximal end of the scissor blades is sharp, to be used as scissors, and the distal end of said blades has a flat surface perpendicular to the plane of opening or closing of the scissors, to be used as a clamp. .

An additional feature of the Cornbi gripper-scissors is that the hollow tube and closed scissors meet the 23 gauge standard.

Another additional feature is that the proximal end of the scissor blades that is sharpened is 2 mm long and that its distal end, which has a flat surface, is 0.3 mm long.

In another preferred embodiment, the hollow tube has a ruler engraved on its distal end on its outer surface.

In another of the preferred embodiments, the edge of the scissors blades is straight and in this case the hollow tube is curved in such a way that its longitudinal axis is included in the opening and closing plane of the scissors.

An optional feature of the invention is that the edge of the scissor blades describes a curve in the opening and closing plane of the scissors and that the hollow tube is straight.

To facilitate the handling of the surgical instrument, the invention can be carried out in such a way that when the opening and closing mechanism of the scissors is operated, they close.

Reference is made in the paragraphs above to the 23 gauge standard, currently widely used in cataract surgery. This 23 gauge standard means that the diameter of the part of the surgical instrument inserted into the eye is comprised of a cylinder with a diameter of 0.6414 mm. This 23 gauge diameter is also currently widely used in surgery of the posterior segment (vitreous and retina).

Description of the figures

Figure 1: side view of the micro-clamp-scissor Combi Figure 2: top view of the curved hollow tube with straight edge scissor blades Figure 3: side view of the straight hollow tube with curved edge scissor blades Figure 4: side view and plan or top view of a detail of straight scissors blades.

Reference list

l. Combi micro-clamp-scissors

2.

Ergonomic handle

3.

Plates

Four.

Hollow tube

5.

Micro-scissors

6.

Straight hollow tube

7.

Scissor blades with curved edge

8.

Curved hollow tube

9.

Straight edge scissor blades

10.

Millimeter ruler

eleven.

Sharp scissors blade area

12. Zone

of the sheet of scissors with surface

perpendicular

to the flat of opening and closing of the

scissors

13. Lowering

separation

PREFERRED EMBODIMENT OF THE INVENTION

The Micro-scissor Combi (1) for surgery of the anterior segment of the eye comprises an ergonomic handle (2}, a mechanism to open and close the scissor blades (not shown in the figures), a hollow tube (3) and a micro-clamp -scissor (4}.

In a preferred embodiment of the invention, the material of the micro-tij era Combi is titanium and on its upper and lower part it has plates (4) that when squeezed close the scissors and when released, open them by any of the mechanisms well known in the market, for example the mechanism may be that when pressing the plates a certain length of the scissor blades is made to enter the hollow tube closing them and when you stop pressing the plates the scissor blades come out of the hollow tube opening.

The hollow tube is engraved on its outer face and at its distal end with a millimeter ruler (10} to measure the diameter of the capsulorhexis.

The hollow tube and the scissor blades in their closed position have a nominal outside diameter of 0.6414 mm, that is, they are included in the 23 gauge standard, a measure that is currently being used in surgery of the anterior segment or posterior eye.

To facilitate the use of the Combi micro gripper

scissors, scissors open and close in one plane

perpendicular to the plane of symmetry of the

instrument.

5

In this preferred embodiment the tube can be straight (6)

with curved edge blades (7), which is usually the one used in

surgery of the posterior segment of the eye, or curved (8) with

the straight scissor blades (9) for segment surgery

1O

previous.

In the case of curved hollow tube and straight scissor blades,

the longitudinal axis of the hollow tube is included in the

plane of opening and closing of the scissors.

fifteen

Curved or straight scissor blades have a recess

(13), in this case circular, between its end

proximal and its distal end to facilitate fabrication

from the same.

twenty

The flat surface perpendicular to the opening plane and

scissors closure located at the distal end (12) of

they are 0.3 mm long and serve as a clamp. The

proximal end (11) of the scissor blades has a

25

length of 2 mm.

Claims (9)

l. Micro-forceps-scissors combination for surgery of the anterior or posterior segment of the eye, comprising an ergonomic handle, a hollow tube located at one end at one end of the ergonomic handle, scissors located at the other end of the hollow tube and a mechanism for open and close scissors characterized in that the proximal end of the scissors blades is sharp, to be used as scissors, and the distal end of said blades has a flat surface perpendicular to the plane of opening or closing of the scissors / for be used as a clamp.

2.

Combi micropinza-tij was for surgery of the anterior or posterior segment of the eye according to claim 1 characterized in that the hollow tube and the closed scissors meet the 23 gauge standard.

3.

Combi micropinza-tij was for surgery of the anterior or posterior segment of the eye according to any of the previous claims, characterized in that the proximal end of the scissors blades that is sharp has a length of 2 mm and that its distal end, which has a flat surface, has a length of 0.3 mm.

Four.

Combi micro-forceps for surgery of the anterior or posterior segment of the eye according to claim 3, characterized in that the edge of the scissors blades is straight.

5.

Micro-forceps-scissors combination for surgery of the anterior or posterior segment of the eye according to claim 3, characterized in that the edge of the scissor blades describes a curve included in the opening and closing plane of the scissors.

6.

Micro-forceps-scissors combination for surgery of the anterior or posterior segment of the eye according to claim 4, characterized in that the hollow tube is curved and its longitudinal axis is included in the plane of

5 opening or closing the scissors.

7.

Combi micropinza-tij was for surgery of the anterior or posterior segment of the eye according to claim 5, characterized in that the hollow tube is straight.

8.

Combi micro-forceps for segment surgery

10 or anterior of the eye according to any of the preceding claims, characterized in that the hollow tube is engraved on its outer surface and at its distal end with a millimeter ruler. 9. Combi micro-forceps for segment surgery 15 or anterior of the eye according to any of the preceding claims, characterized in that when the mechanism for opening and closing the scissors is operated, the scissor blades close.