Device for ventilating the middle ear
First Claim
1. A ventilation tube comprising:
- an outer tube with external treads proximate to an internal end for anchoring into a bone of the ear; and
an inner tube releasable with the outer tube and having a through-channel for air communication between the cavity of the middle ear and the outside air, wherein the inner tube includes a flange at one end that prevents an opposite end of the inner tube from inadvertently being pushed too far into the middle ear yet past the internal end of the outer tube.
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Accused Products
Abstract
The invention relates to a device for ventilating the middle ear by means of a ventilation tube which is made of a tissue-compatible material, preferably titanium, and with a through-channel for air communication between the cavity of the middle ear and the outside air. The ventilation tube comprises, on the one hand, a front portion (2) which is arranged to be introduced into bone tissue and is designed so that a permanent anchoring is obtained in the bone tissue, and, on the other hand, a rear portion (6) which forms a passage through the skin. The ventilation tube further comprises an outer tube (1) which is made of the said tissue-compatible material and an inner tube (8) which is arranged releasably in the outer tube and whose inner bore forms the said through-channel (14) for air communication between the cavity of the middle ear and the outside air.
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Citations
10 Claims
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1. A ventilation tube comprising:
- an outer tube with external treads proximate to an internal end for anchoring into a bone of the ear; and
an inner tube releasable with the outer tube and having a through-channel for air communication between the cavity of the middle ear and the outside air, wherein the inner tube includes a flange at one end that prevents an opposite end of the inner tube from inadvertently being pushed too far into the middle ear yet past the internal end of the outer tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- an outer tube with external treads proximate to an internal end for anchoring into a bone of the ear; and
Specification