EP0375676A1 — A drainage tube for sinus maxillaris, a means for its insertion and a means for making a hole for its positioning
Assigned to BERG Olle · Expires 1990-07-04 · 36y expired
What this patent protects
Drainage tube (1) allowing drainage of the maxillary sinus, consisting of a central part (1b) having an external dimension adapted to a hole made in the bone wall, between the nasal cavity and the maxillary sinus, of a part extensible end, feet (6) foldable preferably outwards, a…
USPTO Abstract
Drainage tube (1) allowing drainage of the maxillary sinus, consisting of a central part (1b) having an external dimension adapted to a hole made in the bone wall, between the nasal cavity and the maxillary sinus, of a part extensible end, feet (6) foldable preferably outwards, as well as an opposite end part (2) widened with respect to the central part (1b), preferably in the form of a collar. In order to drill the hole in the nasal wall, a tube-shaped drill has been developed which, in its free end edge, is made with a toothed blade, as well as a special introductory instrument allowing the insertion of the drainage tube in position, between the nasal cavity and the maxillary sinus.
Drugs covered by this patent
- Elocon (MOMETASONE FUROATE) · Merck & Co.
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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