Sterile drape for use with laser tracking system
US6679267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Oct 10, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00902
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sterile drape serving to preserve the sterile integrity of an operating field is disclosed. The drape has a rigid optically clear window which allows a visible light beam, such as a laser beam, to exit a targeting device without refraction or distortion that could result in misalignment of the visible light beam relative to a targeted object. The rigid optically clear window is made of a material having an ability to transmit light and which ability remains substantially unchanged after the drape has undergone a gamma radiation sterilization process. The drape is positioned so that the optically clear window is located across the device window. The optically clear window is adjusted with respect to the device window so that a secondary light beam caused by distortion due to misalignment of the windows disappears and only the visible light beam travels toward the targeted object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.