G - Physics
02
B
G02B 17/00 (2006.01) A61B 19/08 (2006.01) G02B 27/00 (2006.01)
Patent
CA 2304811
A sterile drape (10) serving to preserve the sterile integrity of an operating field is disclosed. The drape (10) has a rigid optically clear window (14) 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 (14) 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.
Cette invention se rapporte à un drap stérile (10) servant à préserver l'intégrité stérile d'un champ opératoire. Ce drap (10) comporte une fenêtre rigide optiquement transparente (14) qui permet de projeter un faisceau de lumière visible, tel qu'un faisceau laser, depuis un dispositif de ciblage sans réfraction ni distorsion, ce qui risquerait sinon de produire un mauvais alignement du faisceau de lumière visible par rapport à l'objet ciblé. La fenêtre rigide optiquement transparente (14) est faite en un matériau ayant la capacité de transmettre la lumière, cette capacité restant sensiblement inchangée après que le drap ait subi un processus de stérilisation par rayons gamma.
Burns William H. Jr.
Mcneirney John C.
Macrae & Co.
Minrad Inc.
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