Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Ear or nose prosthesis
Reexamination Certificate
2005-04-12
2005-04-12
Willse, David H. (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Ear or nose prosthesis
C604S008000
Reexamination Certificate
active
06878165
ABSTRACT:
A nasolacrimal stent device illuminates a dark nasal cavity so that the interior of the nasal cavity can be directly observed to facilitate and ensure the correct insertion of a nasolacrimal stent into the nasal duct. Flexible, transparent probe tube segments (21) are connected to the opposite ends of a flexible detention tube segment (2) having a diameter that permits the flexible detention tube segment (2) to be inserted in a lacrimal passage, respectively. The respective extremities of distal end parts (21a, 21b) of the probe tube segments (21) are closed. The probe tube segments (21) are provided in their base end parts with openings (23), respectively. When inserting each probe tube segment (21) into the nasal cavity, an illuminating device, such as an optical fiber (30) is inserted through the opening (23) into the probe tube segment (21) to illuminate the interior of the nasal cavity through the transparent probe tube segment (21). The probe tube segment (21) can be surely caught with a hook and can be pulled out from the nasal cavity. An ultrasonic probe or an endoscope may be used instead of the illuminating device to find the position of the nasolacrimal stent in the nasal cavity.
REFERENCES:
patent: 4658816 (1987-04-01), Ector, Jr.
patent: 5345948 (1994-09-01), O'Donnell, Jr.
patent: 5437625 (1995-08-01), Kurihashi
patent: 5792100 (1998-08-01), Shantha
patent: 6117116 (2000-09-01), Walsh
patent: 6383192 (2002-05-01), Kurihashi
patent: 6547765 (2003-04-01), Walsh et al.
patent: 6605108 (2003-08-01), Mendius et al.
patent: 4364842 (1992-12-01), None
patent: 5317351 (1993-12-01), None
Gherbi Suzette J.
Ladas & Parry LLP
Nakagawa, Akio
Toray Industries Inc.
Willse David H.
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