US 5,479,293 AGranted

Portable magnification apparatus for conducting medical examinations

OwnerTheodore P. Reedinventor

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Abstract

A portable apparatus useful for close range physical examinations, in particular for use as a colposcope, is described. The portable apparatus includes a stereoscopic optical unit, a main frame lens holder, an auxiliary frame lens holder, a light and mount therefor, a filter and mount therefor, and support structure which allows the component parts to be maintained in precise optical alignment and allows the apparatus to be worn by a user in the manner of eyeglasses. These components are constructed and arranged to provide for an undistorted short focal length and magnification as necessary for clear close range visualization of body tissue. The apparatus provides for increased magnification so that visualization of blood vessels and the like can be readily discerned without the need for bulky expensive equipment. This allows for screening and earlier diagnosis in a time and cost efficient manner.

Claims9

Dependent claims

A portable close-range examination apparatus comprising a stereoscopic optical unit having a pair of viewing lenses and corresponding eyepieces with a mirror system positioned between each viewing lens and corresponding eyepiece;

a main frame lens holder attached to the viewing lenses of said stereoscopic optical unit for holding a first pair of lenses which provide a first magnification at an undistorted short focal length;
an auxiliary frame lens holder hingedly connected to said main frame lens holder for containing a second pair of lenses which in combination with said first pair of lenses provides a second magnification at an undistorted short focal length, said second magnification being greater than said first magnification;
a light means for providing a light beam;
a filter mounting means with a filter means hingedly connected thereto, said filter mounting means being attached to an end of said light means through which a light beam is emitted;
a mount means for holding said light means;
a stud element for rigidly interconnecting at least said stereoscopic optical unit, said main frame lens holder and said mount means;
and a support means constructed and arranged to support said apparatus in use by a user of said apparatus in the manner of eyeglasses.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/298,312Filed 1 Sep 1994 · continuation in part
Priority: 26 May 1994
Granted: 26 Dec 1995
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G02B 23/18
Housings; Caps; Mountings; Supports, e.g. with counterweight: for binocular arrangements
A61B 1/00193
Optical arrangements: adapted for stereoscopic vision
G02C 9/02
Attaching auxiliary optical parts: by hinging
G02C 7/088
Auxiliary lenses; Arrangements for varying focal length: lens systems mounted to spectacles