Disposable endoscope

Details Disposable endoscope Disposable endoscope

1996-04-08

1999-04-06

Nguyen, Thong

Optical: systems and elements

Prism

With reflecting surface

359656, 359831, G02B 504, G02B 2102

Patent

active

058926305

ABSTRACT:
An endoscope includes a disposable probe and a non-disposable focusing ocular. The probe includes a transfer module assembly including one or more relay modules, and an objective element including a distal glass window, a molded plastic prism and three molded plastic lenses. Each of the relay modules contains an entry glass rod, an intermediate glass rod, and an exit rod, each having flat end surfaces and two identical molded plastic doublets. The elements of the ocular are all of glass and include an axially movable focusing doublet and two non-movable doublets. The disposable probe introduces certain aberrations into the image. The non-disposable focusing ocular corrects these aberrations. A single curved surface is formed on the distal glass window of the probe; all other curved optical surfaces of the disposable probe are formed on molded plastic members, thereby reducing the cost of the probe sufficiently to be cost-effective for single patient, disposable use.

REFERENCES:
patent: 1741575 (1929-12-01), Leiter
patent: 1915811 (1933-06-01), Wolf
patent: 2406762 (1946-09-01), Grey
patent: 2453218 (1948-11-01), Grey
patent: 2519760 (1950-08-01), Hett
patent: 2571308 (1951-10-01), Taylor
patent: 2899862 (1959-08-01), Baker
patent: 3257902 (1966-06-01), Hopkins
patent: 3380335 (1968-04-01), Clave et al.
patent: 3468598 (1969-09-01), Ito
patent: 3583785 (1971-06-01), Boardman
patent: 3625583 (1971-12-01), Beiser
patent: 3836249 (1974-09-01), Weber
patent: 3936149 (1976-02-01), Imai
patent: 4025155 (1977-05-01), Imai
patent: 4036218 (1977-07-01), Yamashita et al.
patent: 4076018 (1978-02-01), Heckele
patent: 4086000 (1978-04-01), Cox et al.
patent: 4138192 (1979-02-01), Yamashita
patent: 4140364 (1979-02-01), Yamashita et al.
patent: 4149769 (1979-04-01), Zobel
patent: 4165917 (1979-08-01), Yamashita et al.
patent: 4168882 (1979-09-01), Hopkins
patent: 4195904 (1980-04-01), Yamshita
patent: 4354730 (1982-10-01), Bel
patent: 4385810 (1983-05-01), Hamon
patent: 4398811 (1983-08-01), Nishioka et al.
patent: 4500181 (1985-02-01), Takahashi
patent: 4501477 (1985-02-01), Sunaga
patent: 4515444 (1985-05-01), Prescott et al.
patent: 4545652 (1985-10-01), Hoogland
patent: 4575195 (1986-03-01), Hoogland
patent: 4624243 (1986-11-01), Lowery et al.
patent: 4641927 (1987-02-01), Prescott et al.
patent: 4655557 (1987-04-01), Takhashi
patent: 4662728 (1987-05-01), Whitehead
patent: 4671630 (1987-06-01), Takahashi
patent: 4676606 (1987-06-01), Takahashi
patent: 4684224 (1987-08-01), Yamashita et al.
patent: 4693568 (1987-09-01), Takahashi
patent: 4720178 (1988-01-01), Nishioka et al.
patent: 4723843 (1988-02-01), Zobel
patent: 4730909 (1988-03-01), Takahashi
patent: 4735491 (1988-04-01), Takahashi
patent: 4742818 (1988-05-01), Hughes et al.
patent: 4746203 (1988-05-01), Nishioka et al.
patent: 4755029 (1988-07-01), Okabe
patent: 4783154 (1988-11-01), Takahashi
patent: 4783156 (1988-11-01), Yokota
patent: 4805971 (1989-02-01), Fantone
patent: 4815833 (1989-03-01), Zobel et al.
patent: 4838247 (1989-06-01), Forkner
patent: 4859040 (1989-08-01), Kitagishi et al.
patent: 4895433 (1990-01-01), Takahashi et al.
patent: 4907868 (1990-03-01), Kitagishi et al.
patent: 4916534 (1990-04-01), Takahashi et al.
patent: 4930880 (1990-06-01), Miyauchi
patent: 4946267 (1990-08-01), Hoogland
patent: 4964710 (1990-10-01), Leiner
patent: 4993808 (1991-02-01), Brackman
patent: 5026415 (1991-06-01), Yamamoto et al.
patent: 5094004 (1992-03-01), Matsumura
patent: 5142410 (1992-08-01), Ono et al.
patent: 5150259 (1992-09-01), Oishi
patent: 5188092 (1993-02-01), White
patent: 5191469 (1993-03-01), Hargulrs
patent: 5327283 (1994-07-01), Zobel
patent: 5416638 (1995-05-01), Broome
A.I. Molev, in "A rod-like optical system for endoscopes", Biomedical Engineering (a translated Russian language journal) vol. 9, No. 4, pp. 206-209 (Jul.-Aug. 1975).
Moore et al, "Third-Order Aberrations of Inhomogeneous Lenses with Cyclindrical Index Distributions", Journal of the Optical Society of America, vol. 61 No. 9, (1971).
The Handbook of Plastic Optics, 2nd Edition, published by U. S. Precision Lens Co. of Cincinnati, Ohio (1983).

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