ES1245260U - Portable corneal axis marker for smartphones (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Portable corneal axis marker to adapt to smartphones for ophthalmic use, consisting of a base adaptable to smartphones, a body and an end to mark eye tissues, characterized by a base that adapts to the smartphone (1) that leaves the lens of the cleared chamber, a rigid body of cylindrical or conical shape (2) and an end to mark ocular tissues (3) that has two elements, internal and external, circular and concentric. The external element is fixed and has two fixed marks at 0 and 180 degrees (5) and an engraving that indicates the axes to be marked. The internal element is mobile and rotatable 360 degrees and has two opposite marks (4). The marks that come into contact with the eye tissue are blunt and curved following the anatomy of the cornea and eyeball. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Portable corneal axis marker for smartphones.

Technique sector

The present invention belongs to the field of Medicine, and more specifically to the field of Ophthalmology.

The object of the present invention is a corneal marker that uses the gyroscope functions of smartphones to mark the ocular tissues in a certain axis and to check the axis of an already implanted lens.

Background of the Invention

Currently, in addition to laser corneal refractive surgeries, there is intraocular lens refractive surgery. In cases of surgery to eliminate astigmatism, intraocular lenses must be placed on a certain axis that we must know and mark before surgery.

For this purpose, we have at our disposal automatic electronic markers integrated into the microscope's video system and other manuals that, impregnated in ink, leave a mark on the ocular surface.

Electronics are very reliable because they use sophisticated image-guided systems. The main defect is that they are extremely expensive and, above all, they cannot be easily moved, since they are linked to a single surgical microscope. This prevents the surgeon working at multiple centers from using the same technology for all of their patients.

Among the manuals, we find one that uses a pendulum to align the axes and mark the tissues and another that uses an accelerometer screen to align the marker.

Document W02011126938A1 discloses a marking device for the axis of astigmatism in the immediate phase of surgery for the implantation of a corrective toric lens. The apparatus comprises an eye contact element that can be rotated with respect to a reference piece that incorporates the angle marks. Rotation of the marking element can be performed by the user thanks to a thread that protrudes at the rear end of the device and is connected to the marking part, so that said marking part rotates jointly with the thread until position yourself at the desired angle measured on the reference piece. The central axis of the apparatus is hollow. Thus, the user can look through the twist thread and see the surface of the patient's eye to properly align the apparatus.

The problem with this device is that the scanner cannot simultaneously observe the patient's eye and the angles of the reference part marked on the outside. This makes it impossible to measure an axis of an already implanted toric lens.

Similarly, the field of the observer is very small, in addition to not having lighting means, working in unfavorable conditions.

All this makes the maneuver awkward and imprecise.

Document W02014072342 describes an apparatus that uses a flat screen with an accelerometer from which an arm protrudes to mark the eye tissues. It has the great disadvantage that the operator cannot look at the patient's eye and the electronic device at the same time to confirm that it is on the horizontal axis, making the maneuver rather imprecise.

Explanation of the invention

The present invention relates to a portable corneal axis marker adaptable to smartphones with applications that use the camera and the gyroscope function. Its main purpose is to perform precise marking of the desired eye axis in the immediate phase of eye surgery in the operating room with the patient sitting and the head in an upright position and supported by a backrest. In addition, it allows to check the axis of an already implanted lens.

The device allows viewing the patient's eye through the smartphone screen and at the same time viewing the axis that marks the gyroscope function.

Using the gyroscope function, firstly, the head and the 2 pupils must be aligned on the horizontal axis and, subsequently, corneal marking can be performed.

The marker has an element with fixed marks 0-180 degrees and another mobile, concentric and internal to the first, rotatable 360 degrees, which can be placed on the desired axis.

The portable cornea 'axis marker enables visualization of the patient's eye while aligning with the horizontal axis using specific smartphone applications.

For this we need an element with a base for anchoring to the Smartphone, a body and an end to mark the eye tissues.

The base adapts on the smartphone camera leaving it clear to be able to visualize the patient's eye through it.

The body is cylindrical or cone-shaped, manufactured in such a way that ambient light enters and improves the visualization of eye tissues. The body has visible marks from the camera that will serve to align the device with the 0-180 ° axis.

The end to mark the ocular tissues consists of two concentric circular elements, one external and fixed to mark the horizontal axis and the other external and mobile to mark the desired axis.

The external element has blunt marks on the axis 0-180 degrees in addition to an engraving that will serve as a guide for the internal element.

The inner element can be rotated 360 degrees to position it to the desired axis aligning the blunt marks with the engraved axes on the external element.

The marks of the internal and external elements are located at opposite poles from each other and the ends of them will be blunt since they will come into contact with the ocular tissues. The following advantages derive from this project:

Compared to automatic systems it would have a much lower cost, would be portable and could be used in several operating rooms by the same user.

Compared to manual systems, we would have a clear advantage by taking advantage of the electronic support of the Smartphone, minimizing the errors derived from a bad placement of the patient or operator who must use imprecise gravitational pendulums that often leave a diffuse stain due to movement of the pendulum itself.

Brief description of the drawings

Figure 1 and Figure 2 show a bottom view and an inferolateral view of the corneal axis marker according to the present invention. The drawing presents a base to adapt it to the Smartphone (1), a body (2) and an end to mark the tissues (3).

Figure 3 shows in detail the front end view for marking the tissues.

Figure 4 shows in detail the lateral view of the end for marking the tissues of the portable corneal axis marker for smartphones and the internal (4) and external (5) blunt marks that contact the ocular tissues.

PREFERRED EMBODIMENT OF THE INVENTION

In figure 1 and figure 2, a case of practical implementation of the corneal axis marker can be seen to adapt to a smartphone, object of this Utility Model. The corneal axis marker is made up of a base to fit a smartphone (1), a body (2) and an end to mark the eye tissues (3).

Figure 3 and Figure 4 show the front and side view of the end to mark the ocular tissues in detail. The end for marking the ocular tissues is made up of a fixed and a mobile part. Both are circular in shape. The fixture has two marks with blunt edges (5) that protrude from the front on axes 0 ° -180 ° and an engraving indicating the axis to which the marks on the moving part are aligned. The movable part, concentric and internal to the first, has two marks with blunt edges (4) that protrude from the anterior face and are located at opposite poles. The moving part can rotate 360 degrees and align with the desired axis using the reference engraved on the fixed part.

Industrial application

The corneal axis marker, object of this Utility Model, will be manufactured with the materials appropriate to its elements and components, in plastic, ABS or metallic material.

Claims (7)

1a.- Portable corneal axis marker to adapt to smartphones for ophthalmic use, consisting of a base adaptable to smartphones, a body and an end to mark eye tissues, characterized by a base that adapts to the smartphone (1) that leaves the lens of the cleared chamber, a rigid body of cylindrical or conical shape (2) and an end to mark ocular tissues (3) that has two elements, internal and external, circular and concentric. The external element is fixed and has two fixed marks at 0 and 180 degrees (5) and an engraving indicating the axes to be marked. The internal element is mobile and rotatable 360 degrees and has two opposite marks (4). The marks that come into contact with the eye tissue are blunt and curved following the anatomy of the cornea and eyeball. 2a.- Portable corneal axis marker to adapt to smartphones, according to claim 1, characterized in that the adaptable base for smartphones (1) has 180 ° alignment led lights to align the eyes on the horizontal axis. 3a.- Portable corneal axis marker to adapt to smartphones, according to claim 1, characterized in that the internal element of the marking end is expendable and non-reusable, being impregnated in ink at the front ends (4), available in cartridge that guarantees its sterility and the stability of the dye. 4a.- Corneal portable axis marker to adapt to smartphones, according to claim 1, characterized in that the adaptable base for smartphones (1) is integrated into a specific housing for each smartphone model. 5a.- Portable corneal axis marker to adapt to smartphones, according to claim 1, characterized in that next to the adaptable base for smartphones (1) there is a retractable arm that supports the patient's forehead. 6a.- Portable corneal axis marker to adapt to smartphones, according to claim 1, characterized in that the marker body (2) has a light source to improve the visualization of the tissues to be marked. 7a.- Corneal portable axis marker to adapt to smartphones, according to claim 1, characterized in that between the adaptable base for smartphones (1) and the body of the marker (2) there is a lens with or without a light source to improve visualization of the tissues to be marked.