SU1463280A1 - Prosthesis of auditory ossicle chain - Google Patents

Description

FIG. one

I The invention relates to the field of medicine, namely to implantable prostates, and can be used for; reconstruction of the auditory ossicles at; surgical treatment of chronic middle ear inflammation.

The purpose of the invention is to increase the stability of the prosthesis in the tympanic cavity and the preservation of the airway system of the middle ear cavities.

on the foot plate of the stirrup. The petals of the prosthesis are fan-shaped, reaching the bony walls of the neotympanal cavity with anchors 5 in the form of elastic-elastic tendrils, which are bent towards the neotympanal cavity. A plate plate 3 is laid on the base of the petals. The edge of the plate does not touch the bony walls of the neotympanic cavity. Petals 2 and the throat plate 3 raspolatt J, I / hllschsoal) uidi; iMHa about raspolAn FIG. 1 shows a prosthetic chain serving above entrance 7 to cave 6 and the mouth of the hot stones, front view; in fig. 2 -11 of the auditory tube 9, retaining the air of “U. . ".. nv.- 00„. Fr. "" "At the layer in these mesth. A non-tympanic flap is placed on the cartilage plate 3. The sound vibrations transmit the same, top view; in fig. 3 - prosthetic chain of the auditory ossicles, located in the tympanic cavity.

rod 1 with petals 2 and plate 3 placed on the petals. Petals 2 radially move away from the distal end of the rod at an angle of 90 ° and have the form of plates wider at the axis .j “.u.,., ij, IV. Djii vjoDic lilsinia pass on The prosthesis of the chain of auditory ossicles contains. . with a non-implant flap prosthesis

ryen 1 with petals 2 and spaced the bottom plate of the stirrup. The fixtures 5 make the position of the prosthesis stable with respect to the bone walls of the cavity and do not allow the pro, -, .p..v .. -the prosthesis to be deflected to the side, not preventing the oscillation 4 and narrowing to the periphery.20 none of the prosthesis in direction of stirrup

i Petals are equipped with retainers 5 in the form of prosthesis Petals and a support plate; elastic-mustache to rely on bone -: walls. The optimal amount of le; pestles within the range. Teflo length: new rod 1-6 mm; diameter 1.2 mm; with a medial wall in the area of mouth

length of petal 2 with fixative 5-6 mm; 25 auditory tube, attic, cave entrance

, antenna length 0.25 mm, length - 1.5 mm. Cavities in the air system

: Plate 3 is made of cartilage oval-middle ear

10 mm in diameter, the thickness of the proposed prosthesis allows 0.3 mm and is located on the petals to maintain its stability in the neotympal in close contact with their surface. the cavity, irrespective of the state and polo. The rod 1 with the petals 2 is fabricated by the nrptmmpac- Shio, „„, „„ „

the flap lives at the required height and prevents the flap from dropping into the neotympanic cavity and the fusion of the flap with the medial wall in the region of the mouth

The stem 1 with the petals 2 is made with a sharp scalpel from a Teflon: stem by cutting one of the ends with cuts along the axis, forming six segments that form in the petals of the neoimpanal flap, preserving the airway system of the middle ear cavities, as well as easier installation of the prosthesis in the tympanic cavity and secure the prosthesis

, -r-f -I.; .i..v, 4, i-aa aamnii IIUJIUCIM AND PRESERVING THE PROTECTION

ki cutting off excess material. The plasticity from pushing out of the tympanic cavity into 3 of the cartilage is cut by a microtome.

Claims (1)

The prosthesis works as follows. Formula of the invention At the final stage of repairing the Prosthesis of the chain of the auditory ossicles containing an operation performed on the chronical stem with petals and localized inflammation of the middle ear, a plate is made on the petals; ... a large airway system, part of the prosthesis in the tympanic cavity and the preservation of the airway system of the middle ear cavities, the petals are provided with fixation of "..all, ... pocket and auditory tube 9. Protected against the bony walls of a plastic installed in the poverty of the oval window 10 tinka is made of cartilage. including mastoid cells, cave b, entrance 7 to cave 6, tympanic cavity 8 with drum core on the foot plate of the stirrup. The petals of the prosthesis are fan-shaped, reaching the bony walls of the neotympanal cavity with anchors 5 in the form of elastic-elastic tendrils, which are bent towards the neotympanal cavity. A plate plate 3 is laid on the base of the petals. The edge of the plate does not touch the bony walls of the neotympanic cavity. The petals 2 and the crest plate 3 are located along the entrance to the cave 6 and the mouth of the auditory tube 9, keeping the prosthesis petals and the plate supporting the medial wall in the area of the mouth auditory tube, attic, cave entrance the flap lives at the required height and prevents the flap from dropping into the neotympanic cavity and the fusion of the flap with the medial wall in the region of the mouth The proposed prosthesis makes it possible to ensure its stability in the neotympanal cavity, irrespective of the state and position of the prosthesis, nrptmmpac-shio, "", "" " neympanal flap, preservation of the pneumatic system of the middle ear cavities, as well as technically easier installation of the prosthesis in the tympanic cavity and protect the prosthesis ia aamnii IIUJIUCIM AND PREVENT THE PROTEZ from pushing out of the tympanic cavity Phage. 2