RU197579U1 - Elevator N.V. Volova - Google Patents

Abstract

The utility model relates to otorhinolaryngology, ophthalmology and maxillofacial surgery, in particular to instruments for reconstructive operations in the nasal cavity. An elevator consisting of a handle, intermediate and working parts, characterized in that the handle is 120 mm long, 35 mm in diameter in its area capture and a diameter of 15 mm closer to the transition to the intermediate part is located relative to the axis of the latter at an angle of 160 °, made of food stainless steel and has a mesh knurling 1 mm deep; the intermediate part 80 mm long and 4.5 mm in diameter passes into the working part 11 mm long, 2.5 mm in diameter, curved by an arc with a radius of 10 mm at an angle of 110 ° to the intermediate part and having an atraumatic end rounded with a radius of 1.25 mm.

Description

The utility model relates to otorhinolaryngology, ophthalmology and maxillofacial surgery, in particular, to instruments for performing reconstructive operations in the nasal cavity.

Known zygomatic elevator containing a handle with a working part, characterized in that its working part is equipped with a supporting sphere, and the diameter of the sphere does not exceed 25 mm, and the distance from the middle of the sphere to the end of the working part corresponds to the average distance from the hillock to the middle of the zygomatic arch, the working blade is made in the form of a half cylinder and has a cutting edge at the end over the entire surface of the half cylinder [1].

Known dental elevator for removing third molars, containing a handle, an intermediate and a working part having a spoon-shaped shape with a pointed end, characterized in that the intermediate part is curved in the middle at an angle of 160 ° with respect to the axis of the elevator, and the working part is connected with the intermediate at an angle 130 ° with respect to the axis of the intermediate part [2].

The disadvantages of these elevators are the shape and diameter of the working part, the curvature of the intermediate part and the working end of the instrument, which does not make it possible to use it to pass under the lower nasal concha at the mouth of the nasolacrimal canal and insert the tip of the working part into the lacrimal fossa (where the lacrimal sac is located) to perform the operation . In addition, the shape of the working end and the angle of its location are traumatic for such manipulations in the lower nasal passage. We took the dental elevator as a prototype.

The purpose of the utility model is to create a tool for ensuring the operation of the dacryocystorhinostomy in the endonasal way when creating a message between the lacrimal sac and the nasal cavity. This goal is achieved by the fact that the tool handle is 120 mm long, with a diameter of 35 mm in the area of its capture and with a diameter of 15 mm closer to the transition to the intermediate part located relative to the axis of the latter at an angle of 160 °, made of food-grade stainless steel and has a mesh knurling 1 mm deep ; the intermediate part 80 mm long and 4.5 mm in diameter goes into the working part 11 mm long, 2.5 mm in diameter, curved by an arc with a radius of 10 mm at an angle of 110 ° to the intermediate part and having an atraumatic end rounded with a radius of 1.25 mm.

These dimensions of the instrument are due to the anatomical shape of the vestibule of the nasal cavity, lower nasal passage, the location, direction and diameter of the nasolacrimal duct, lacrimal sac. The curvature of the parts of the tool allows you to freely deploy it when the end reaches the working part of the lacrimal sac. In this case, after turning the instrument medially, inside the nasolacrimal canal, the end of the working part of the instrument abuts against the lower part of the lacrimal fossa, where the bone is the thinnest, forming a bone window. The atraumatic rounded end of the instrument does not injure the mucous membrane of the lower nasal passage and the nasolacrimal duct, when carried out.

Elevator N.V. The oxen consists of a handle, an intermediate and a working part. The handle is 120 mm long, with a diameter of 35 mm in the area of its capture and with a diameter of 15 mm closer to the transition to the intermediate part located relative to the axis of the latter at an angle of 160 °, made of stainless steel and has a mesh knurling 1 mm deep. The intermediate part 80 mm long and 4.5 mm in diameter passes into the working part, 11 mm long, 2.5 mm in diameter, curved by an arc with a radius of 10 mm at an angle of 110 ° to the intermediate part and having an atraumatic end rounded with a radius of 1.25 mm .

The utility model is illustrated by graphic material. In FIG. 1 shows the elevator N.V. Cow, consisting of a handle 1, an intermediate 2 and a working part 3. The handle 1 is bent relative to the intermediate part 2 at an angle 4 equal to 160 °, and the working part 3 is curved with an arc with a radius of 10 mm at an angle 5 equal to 110 ° to the intermediate part 2 and has an atraumatic end 6 rounded with a radius of 1.25 mm.

The tool is used as follows in the surgical treatment of chronic dacryocystitis. After application and infiltration anesthesia of the mucous membrane of the nasal cavity in the surgical area, through the vestibule of the nasal cavity, holding the instrument by the handle 1, its working part 3 is introduced under the lower nasal concha until the rounded atraumatic end 6 of the working part 3 reaches the lacrimal sac. In this case, the bending point of the working part 3 of the tool relative to the intermediate part 2 abuts against the attachment point of the lower turbinate. Then for the handle 1, the tool is rotated medially. Due to the pressure during rotation, a “breaking” of the bone window at the lower part of the lacrimal fossa into the nasal cavity occurs atraumatic end of the instrument. The tool is removed. Through the middle nasal passage, the operator cuts a mucous membrane protruding in the projection of the formed bone window with a scalpel, removes bone fragments, cuts out the medial flap of the lacrimal sac into the nasal cavity with its further fixation.

The use of the instrument is illustrated by a clinical example. Patient B., 45 years old. Diagnosis: Chronic dacryocystitis. Condition after a gunshot wound to the orbit. With violation of the anatomical landmarks used for dacryocystorhinostomy. An operation was performed using the developed tool. There were no intraoperative complications. At the same time, when turning the tool, a bone window was formed in the lower part of the lacrimal fossa, and the formation of the lacrimal sac message with the nasal cavity was completed. In the postoperative period, the patient was observed for 5 months. The message is functional, the tear goes into the nasal cavity.

Thus, the tool can be used when performing surgical operations in ENT and ophthalmic medical institutions, as well as in the departments of maxillofacial surgery.

SOURCES OF INFORMATION

1. RF patent for the invention №2164386 "Zygomatic elevator".

2. RF patent for utility model No. 78660 "Elevator for the removal of third molars."

Claims (1)

Elevator for reconstructive operations in the nasal cavity, consisting of a handle, an intermediate and working parts, characterized in that the handle is 120 mm long, 35 mm in diameter in the area of its capture and 15 mm in diameter closer to the transition to the intermediate part relative to the axis of the latter at an angle of 160 °, made of food-grade stainless steel and has a mesh knurling 1 mm deep; the intermediate part 80 mm long and 4.5 mm in diameter goes into the working part 11 mm long, 2.5 mm in diameter, curved by an arc with a radius of 10 mm at an angle of 110 ° to the intermediate part and having an atraumatic end rounded with a radius of 1.25 mm.

Images