Medical lens assembly and sterile drape with lens assembly

Abstract

Medical lens assemblies and sterile drapes with a lens assembly are presented herein. In one embodiment, a lens assembly includes an annular lens housing that is attachable to a medical drape. The lens housing is configured to releasably attach to a medical device, such as a surgical microscope. An annular lens cover holder is removably attachable to the lens housing. A lens cover for shielding the objective lens is pivotably hinged to the lens cover holder. In another embodiment, a drape assembly includes a flexible body sized to cover an optical device. A lens housing attached to the drape body is engageable with the optical device to attach proximate an objective lens thereof. A lens cover holder is removably attached to the lens housing to rotate about a first axis. A lens cover is mounted to the lens cover holder to pivot about a second, different axis.

Description

technical field [0001] The present invention generally relates to optical devices requiring a sterile field. More particularly, the present invention relates to medical lens assemblies and sterile drapes having one or more lens assemblies for maintaining a sterile field. Background technique [0002] During surgical procedures, the surgical site and surrounding area must be kept sterile. A "surgical area" is an environmentally controlled area, typically in a hospital operating room, where the risk of infection, for example from naturally occurring organisms such as bacteria, is minimized or eliminated. Disinfection of the surgical field is usually controlled by limiting the introduction of infection-causing bacteria and other contaminants. Typically, this is achieved by implementing strict management of the equipment and personnel present in the operating room. [0003] Surgical drapes are commonly used during surgical procedures in the operating room to minimize the risk...

AI Technical Summary

Problems solved by technology

[0008] Unlike typical microscopes, many surgical microscopes are illuminated from above and onto the lens cover that covers the objective, which can create glare when the surgeon is looking through the microscope

Also, during surgical procedures, the lens cover may be splattered with fluid from the procedure, such as blood, which would obscure the surgeon's field of vision

To correct the problem, someone on the surgical team is usually asked to wipe the lens cover (which can further obscure the view), remove and replace the lens cover (which requires access to the lens cover from another drape assembly), or replace the entire drape ( This temporarily suspends the sterilization zone, is time consuming, and wastes another entire drape assembly)

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