| 摘要 |
A middle ear prosthetic device including: a columellate prosthesis, one end of which is connectable to the stapes or to its remaining footplate; an annular element of bioinert metal insertable into the auditory tube after suitable milling; an elastic elongated element of bioinert material, disposed transversely to the annular element, a first end of the elongated element being rigid with the annular element while its second end is free and to it there being connected the other end of the columellate prosthesis; for supporting the neotympanum, a tensostructure of wires of non-reabsorbable bioinert material fixed taut to the interior of the annular element to support the neotympanum, the distance between the wires being such as to provide the surgeon with a sufficient view of the surgical field, the elongated elastic element interfering with the tensostructure. |
| 主权项 |
1. A middle ear prosthetic device, comprising:
a columellate prosthesis arranged to replace, in sound wave transmission, an ossicular chain of a middle ear with the exception of a stapes or at least a footplate of the stapes, a first end of the columellate prosthesis being connectable to the stapes or to the footplate; an annular element of bioinert metal insertable, by previous milling, into the an auditory tube at a position in which a neotympanum is to be formed, the neotympanum for functionally replacing a tympanum of the middle ear; an elastic elongated element of bioinert material, disposed transversely to the annular element, a first end of the elongated element being coupled to the annular element while a second end of the elongated element is spaced from the annular element to be free relative to the annular element, the elastic elongated element being connectable to a second end of said columellate prosthesis at or in a vicinity of the second end of the elastic elongated element; a tensostructure of wires of non-reabsorbable bioinert material, which extends through an interior of the annular element and is fixed to the annular element, the tensostructure of wires for supporting the neotympanum on a side of the tensostructure distal to the inner ear when the neotympanum is formed, wherein a distance between the wires being for providing a surgeon with a sufficient view of a surgical field and allowing required surgical maneuvers, the elongated elastic element interfering with the tensostructure; wherein the columellate prosthesis being configured to hang from the elastic elongated element; wherein each said wire of said tensostructure has a first end and a second end, wherein each said wire first end and each said wire second end is directly attached to said annular element to be under tension. |
