RU33857U1 - DEVICE FOR FIXING A PLASTIC FLAP - Google Patents

Description

MKI: A 61 V 17/03, A 61N 2/00, A 61 F 11/00

Utility model

Device for fixing a plastic flap ia a drum

The utility model relates to the field of medicine, namely to surgical instruments, and can be used with myringoplasty to fix a plastic flap.

The known device in the method of myringoplasty, which includes pieces of a samarium-cobalt magnet for fixing a plastic flap on the eardrum (OT. Cherkasova, V.I. Kochenov, S.N. Tsybusov, A.V. Shakhov. - A. S. SU No. 18048154 dated 03.30.93). In a patient with dry perforated otitis media, the edges of the tympanic membrane are de-epithelized, a magnetic ointment is applied in portions on the inner perforation surface, a tshastic flap is placed on the perforation and pieces of a samarium-cobalt magnet are placed on the ring over it to fix the plastic flap. Attracting to the projection zone onto the flap of a magnetic ointment, the magnets provide a constant pressing effect of the forces of magnetic attraction.

However, since the magnet pieces are located on the flap not in a continuous layer, but discretely, and are granules with a diameter of 0.5 mm - 2 mm with an uneven, uneven surface, it is precisely in the areas of the magnet pieces localization that their attraction is more or less strong, with pressing into the flap, but in neighboring areas this is not, that is, there is no uniform specific pressure of pressing the flap, therefore, a complete microadhesion of the flap is not achieved.

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This object is achieved in that the known device for fixing a plastic flap on a drum shifter, containing an element having the properties of a permanent magnet, consists of two parts interconnected by forces of magnetic attraction, with one part having a horseshoe-shaped and the other having a T-shaped rounded shape and both are made of an inert elastic material, in which an element representing microgranules of ferromagnets is placed, while the total magnetic field of the elements is oriented perpendi perpendicular to the plane of the device.

As a result of the patent information research, no sources were found that were damaging to the present invention.

The figure 1 shows the proposed device for fixing a plastic flap on the eardrum. The device contains two parts: part 1 is horseshoe-shaped and part 2 is a T-shaped rounded shape. Parts 1 and 2 of the device are made of an inert elastic material, for example, plasticized polyvinyl chloride, Teflon, etc. In parts 1 and 2 of the device, a powdery filler is placed - element 3. Element 3 is a microgranule of ferromagnets with diameters from 100 A to 100 MKM. Iron compounds are taken as ferromagnets: FeBa - barium ferrum, 8Yu-6Pe 2Oz - strontium ferrite or NdFeB - neodymium-iron-boron. The elastic horseshoe-shaped tube 1 and the T-shaped rounded elastic shell 2 are densely filled with magnetic microspheres of the iron compound, placed in a strong magnetic field so that its poles are below and above the plane of the horseshoe 1 and the T-shaped shell 2 and the microspheres 3 placed therein equally oriented in a magnetic field relative to its poles. Section A shows the direction of the lines of force of the total magnetic field of the elements 3 of each part of the device.

The utility model works as follows.

After de-epithelization of the edges of the perforation of the tympanic membrane, the continuous application of a magnetic ointment on the inner surface of the perforation and the folding of the flap, the horseshoe 1 is seized at the ends with tweezers, inserted into the ear canal, orienting the rupture of the horseshoe 1 to the handle of the hammer. Horseshoe 1 is brought closer to the flap, achieving mutual influence of magnetic forces of magnetic fields of the horseshoe 1 and the ointment, and the horseshoe 1 is fixed on the flap. In some cases, if it is necessary to fix the plastic flap in its middle part on the handle of the hammer, in the gap of the horseshoe 1 additionally place the T-shell 2, respectively, the projection of the distal part of the handle of the hammer; while parts 1 and 2 of the device are interconnected by forces of magnetic attraction.

Magnetized microbeads 3 inside the horseshoe 1 or horseshoe 1 and the T-shaped shell 2 maintain a constant magnetic field with uniform specific pressure over the entire area around the perforation, and the device constantly and tightly presses the flap under the action of pandemotor forces until it is removed.

Tests of the proposed device, conducted during operations on myringoplasty on the basis of the ENT department of the road hospital of N. Novgorod, revealed that the proposed utility model allows to achieve:

- uniform u) compressive action on the flap of forces of magnetic attraction, uniform micro-fit and better engraftment of the flap, including its middle part above the handle of the malleus;

-uniform circulation in the regeneration zone and better healing;

Examples confirming the possibility of using a utility model.

Example 1. Patient Sh-in K.K., 45 years old, was admitted to the hospital due to the presence of perforation in the eardrum due to getting scale in the ear during welding. After de -galizing the edges of the perforated eardrum, applying magnetic ointment to the inner surface of the perforation and laying the plastic flap, a horseshoe-shaped elastic tube filled with barium ferrum microspheres was seized at the ends with tweezers and inserted into the ear canal, orienting the horseshoe with a gap on the handle of the malleus. They brought the horseshoe closer to the flap, waiting for the horseshoe to be attracted to the ointment, the mutual influence of the magnetic forces of the magnetic fields of the horseshoe and ointment, and fixed the device on the flap. The magnetized microbeads inside the horseshoe maintained a constant magnetic field with uniform specific pressure over the entire area around the perforation; therefore, the device constantly and tightly pressed the flap, excluding its deformation and displacement during the engraftment of the flap. On the 12th day, the horseshoe from the surface of the flap was removed after stating its complete engraftment.

Example 2. Patient K-va A.E., 30 years old, was admitted to the ENT department with an outpatient diagnosis of acute purulent perforated otitis media of the middle ear, with extensive perforation of the tympanic membrane and the presence of a hammer handle in the perforation lumen. After de-epithelization of the perforation of the tympanic membrane, continuous deposition of a magnetic ointment on the inner surface of the perforation and under the handle of the hammer and laying of a plastic flap, a horseshoe-shaped elastic tube filled with strontium ferrite microspheres was seized at the ends with tweezers, inserted into the ear canal, orienting the horseshoe with a gap on the handle. They brought the horseshoe closer to the flap, waiting for the horseshoe to be attracted to the ointment, the interaction of the magnetic field forces of the horseshoe and ointment.

fixed the device on the flap. A T-shaped elastic shell was placed in the horseshoe gap, also with microspheres of strontium ferrite, respectively, of the projection of the distal part of the handle of the malleus; in this case, the horseshoe and the T-shaped shell formed, due to the presence of mutual magnetic attraction forces, a single fixed lean device. Magnetized microbeads inside the horseshoe and T-shaped shell maintained a constant magnetic field with uniform specific pressure throughout the area around the perforation, including its middle part with the handle of the hammer, the device constantly and tightly pressed the flap, excluding its deformation and displacement during the engraftment of the flap. On the 14th day, the device was removed from the surface of the flap after achieving complete engraftment of the flap.

Claims (1)

A device for fixing a plastic flap on an eardrum containing an element having the properties of a permanent magnet, characterized in that the device consists of two parts interconnected by forces of magnetic attraction, with one part having a horseshoe-shaped and the other having a T-shaped rounded shape and both are made from an inert elastic material in which an element representing microgranules of ferromagnets is placed, while the total magnetic field of the elements is oriented perpendicular to the plane devices.