RU220286U1 - Atraumatic eyelid speculum - Google Patents

Abstract

The utility model relates to medicine and ophthalmology, namely to microsurgical instruments used in ophthalmic surgery to open the eyelids in order to gain access to the eyeball. The technical result is to reduce the pain of the process of dilation and fixation of the eyelids due to the shock-absorbing and lubricating surface of the eyelid dilator. The technical result is achieved by the fact that the eyelid speculum contains a spring handle and two working legs, according to the utility model, two parallel sides of the handle in the distal part change direction and connect at right angles, forming a triangle, and in the proximal part they turn into legs and sides the handles at the point of transition into the paws are first bent inward at an angle of 120 degrees, then concave towards each other, forming protrusions on the handle, the sides of each paw are arched, convex inward, while the distal side is bent inward in the form of a hook, the lower side of each The legs are parallel to the side of the handle, and the places where all sides transition into each other are rounded, while the eyelid expander is symmetrical relative to its longitudinal axis, a silicone nozzle is tightly placed on each leg, repeating the contour of the foot, the nozzle on the outside has a cavity in the form of a pocket with holes for lubricating the conjunctiva of the eyelid and one hole with a diameter of 0.8 mm on the upper surface for filling the nozzle pocket with gel.

Description

The utility model relates to medicine and ophthalmology, namely to microsurgical instruments used in ophthalmic surgery to open the eyelids in order to gain access to the eyeball.

The closest analogue is the eyelid expander Kratz-Barraquer Eye Speculum TMR204 (Catalog.Integra.Surgical.Instruments.Jarit ^® .Ophthalmic.Specula. https://www.integralife.com/kratz-barraquer-eye-speculum/product/surgical-instruments- hospitals-surgery-centers-tissue-banks-jarit-ophthalmic-specula-kratz-barraquer-eye-speculum).

This tool has a spring handle and two working jaws, material - steel, total length 42 mm, open wire supports 15 mm wide.

The main disadvantage of this instrument is that it is traumatic when expanding and fixing the eyelids. The steel structure, which puts pressure on the eyelid and makes it difficult to remove after lengthy procedures, negatively affects patients’ objective perception of the procedure. In most cases, throughout the entire operation, patients have difficulty with the period of fixation and removal of the eyelid speculum, complaining of painful pressure on the eyelids during the intervention.

The objective of the utility model is to create an atraumatic, easy-to-use eyelid extender and ensure reliable fixation of the eyelids.

The technical result is to reduce the pain of the process of dilation and fixation of the eyelids due to the shock-absorbing and lubricating surface of the eyelid dilator.

The eyelid speculum consists of a handle made of spring steel wire. Two parallel sides of the handle in the distal part change direction and connect at a right angle, forming a triangle, and in the proximal part they turn into paws. The sides of the handle at the point of transition into the paws are first bent inward at an angle of 120 degrees, then concave towards each other, forming protrusions on the handle. The sides of each leg are arched, convex inward, while the distal side is bent inward in the form of a hook. Protrusions on the sides of the handle and hooks on the legs provide additional fixation of the eyelids. The underside of each tab is parallel to the side of the handle. The transition points of all sides into each other are rounded. In this way, an open figure is formed, symmetrical relative to the longitudinal axis. The nozzle, made of silicone, follows the contour of the paw and on the outside has a cavity in the form of a pocket with holes for lubricating (installing) the conjunctiva of the eyelid with a diameter of 1 mm each and one hole for filling the pocket of the nozzle with a diameter of 0.8 mm on the upper surface for filling the lubricating gel . The nozzle is put on the paws tightly (with tension).

The utility model is illustrated in figures 1-4. In fig. Figure 1 shows an eyelid speculum without attachments, top view. In fig. Figure 2 shows an eyelid speculum with attachments, top view. In fig. 3, view A shows an enlarged foot without an attachment. In fig. 4 view B - enlarged foot with an attachment. In fig. 5 shows a section along C-C.

Position 1 indicates a handle made of spring steel, 2 - protrusion of the handle, 3 - foot, 4 - hook on the foot, 5 - silicone nozzle, 6 - pocket on the outside of the nozzle, 7 - hole on the top surface of the pocket, 8 - holes in pocket.

The eyelid speculum is used as follows. After preoperative treatment of the surgical field with a disinfectant solution and installation of the anesthetic, the doctor takes the eyelid dilator with one hand, squeezing the sides of the handle 1. An eye gel with high viscosity is injected into pocket 6 through hole 7.

Using the finger of the opposite hand, the doctor lifts the upper eyelid and places foot 2 of the eyelid expander there. Then places another foot 2 under the lower eyelid and releases the sides of handle 1.

Depending on the anatomical width of the eyeball, and, accordingly, on the pressure of the eyelid expander on the eyelids, the gel is squeezed out of the holes of the 8th pocket and lubricates the eyelids. The holes can be from 4 to 8. To remove the eyelid speculum, the doctor asks the patient not to close the eye and in one motion, squeezing the sides of the handle, removes the eyelid speculum.

In this way, reliable fixation is achieved due to the spring steel, shock absorption during the pressure of the instrument on the eyelids due to the silicone nozzle, and a reduction in trauma due to the constant lubrication of the eyelid with a viscous gel.

Clinical example.

Patient V., 25 years old, diagnosed with stage 1 Keratoconus. OS Crosslinking of corneal collagen was carried out using a utility model. It was possible to install and remove the instrument painlessly, technically easily and atraumatically. According to the patient, pain on a digital rating scale is 0/10.

When using the utility model, shock-absorbing and lubricating fixation of the eyelids is provided throughout the entire intervention. The use of the instrument is recommended in ophthalmology departments to separate the eyelids in order to gain access to the eyeball.

Claims (1)

An eyelid dilator containing a spring handle and two working legs, characterized in that two parallel sides of the handle in the distal part change direction and connect at right angles, forming a triangle, and in the proximal part they turn into legs, the sides of the handle at the point of transition to the legs are first bent inward at an angle of 120 degrees, then concave towards each other, forming protrusions on the handle, the sides of each leg are arched, convex inward, while the distal side is bent inward in the form of a hook, the lower side of each leg is parallel to the side of the handle , and the places where all sides transition into each other are rounded, while the eyelid expander is symmetrical relative to its longitudinal axis, a silicone nozzle is tightly placed on each foot, repeating the contour of the foot, the nozzle on the outside has a cavity in the form of a pocket with holes for lubricating the conjunctiva of the eyelid and one hole with a diameter of 0.8 mm on the top surface for filling the nozzle pocket with gel.