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US 4,766,886 AGranted
Method and apparatus for viewing and collecting specimens
OwnerSteven K. Juhninventor
Life of this patent
Estimating the term…
Abstract
A viewer has a speculum, lens and light that is used to enable a person to visually examine the tissue and tympanic membrane of the middle ear of a human and fluids located therein. A fluid collector for withdrawing fluids from the middle ear has a piston and cylinder assembly joined to an enlongated fluid pick-up tube. The piston is moved with a biasing spring relative to the cylinder to draw fluid through the tube and into the cylinder.
Claims12
A viewer for visual examination of the tympanic membrane and fluid in the middle ear chamber of a human ear comprising:
- a cylindrical body having a first open end, second open end and a passage extended between said open ends, an ear piece mounted on the first end of the body, said ear piece having an open forward end adapted to be positioned in the ear canal to view the tympanic membrane and fluid in the middle ear chamber, said ear piece having a passage open to the passage of the body, lens means spaced from the body, means mounted on the body supporting the lens means spaced from the body in optical alignment with the open forward end of the ear piece, said lens means having a focal point adjacent the open forward end of the ear piece to magnify the tympanic membrane and fluid in the middle ear chamber, said body having a cylindrical end flange having a diameter larger than the diameter of the body forming an inwardly directed shoulder, said ear piece having a sleeve slidably positioned within said end flange and engageable with said shoulder whereby said ear piece is removably mounted on said body, said means mounted on the body supporting the lens being located on the end flange and rotatable thereon to maintain the lens means in concentric relationship with the open forward end of the ear piece, and means mounted on the body operable to project light into said passages to illuminate the tympanic membrane and fluid in the middle ear chamber.
A viewer for visual examination of a body cavity comprising:
- body means having a passage extended therethrough and an outer cylindrical surface, tubular means mounted on the body means having an open forward end adapted to be positioned in said body cavity, at least one lens spaced from the body means having a focal point adjacent said open forward end, means spacing and mounting the lens on the body means, said body means having a forwardly directed flange at one end thereof and an inwardly directed shoulder, said tubular member having a sleeve mounted on said flange and engageable with said shoulder to removably mount the tubular member on the body means, said means spacing and mounting the lens on the body means includes an annular member rotatably mounted on said outer cylindrical surface to maintain the lens in concentric relation with the focal point, and means operable to project light into said passage to illuminate the focal point and body cavity adjacent said open forward end of the tubular means.
Dependencies are inferred from the claim text.