公开(公告)号：US06466713B2

公开(公告)日：2002-10-15

申请号：US09883513

申请日：2001-06-18

申请人： Matthew J. Everett ,  Billy W. Colston ,  Dale L. James ,  Steve Brown ,  Luiz Da Silva

发明人： Matthew J. Everett ,  Billy W. Colston ,  Dale L. James ,  Steve Brown ,  Luiz Da Silva

IPC分类号： G02B626

CPC分类号： G02B6/241 ,  A61B5/0066 ,  A61B5/0084 ,  G02B6/262

摘要： The head of an optical fiber comprising the sensing probe of an optical heterodyne sensing device includes a planar surface that intersects the perpendicular to axial centerline of the fiber at a polishing angle &thgr;. The planar surface is coated with a reflective material so that light traveling axially through the fiber is reflected transverse to the fiber's axial centerline, and is emitted laterally through the side of the fiber. Alternatively, the planar surface can be left uncoated. The polishing angle &thgr; must be no greater than 39° or must be at least 51°. The emitted light is reflected from adjacent biological tissue, collected by the head, and then processed to provide real-time images of the tissue. The method for forming the planar surface includes shearing the end of the optical fiber and applying the reflective material before removing the buffer that circumscribes the cladding and the core.

公开(公告)号：US06451009B1

公开(公告)日：2002-09-17

申请号：US09660037

申请日：2000-09-12

申请人： Luiz B. Dasilva ,  Bill W. Colston, Jr. ,  Dale L. James

发明人： Luiz B. Dasilva ,  Bill W. Colston, Jr. ,  Dale L. James

IPC分类号： A61B1818

CPC分类号： A61B18/20 ,  A61B2017/00057 ,  A61B2017/00123 ,  A61B2018/00636 ,  A61B2018/00642 ,  A61B2090/306 ,  A61B2090/3614 ,  A61B2090/373

摘要： A guided laser ablation device. The device includes a mulitmode laser ablation fiber that is surrounded by one or more single mode optical fibers that are used to image in the vicinity of the laser ablation area to prevent tissue damage. The laser ablation device is combined with an optical coherence domain reflectometry (OCDR) unit and with a control unit which initializes the OCDR unit and a high power laser of the ablation device. Data from the OCDR unit is analyzed by the control unit and used to control the high power laser. The OCDR images up to about 3 mm ahead of the ablation surface to enable a user to see sensitive tissue such as a nerve or artery before damaging it by the laser.

摘要翻译： 导向激光烧蚀装置。 该器件包括多模激光烧蚀光纤，其由一个或多个单模光纤围绕，用于在激光烧蚀区域附近成像以防止组织损伤。 激光烧蚀装置与光学相干畴反射（OCDR）单元以及初始化OCDR单元和消融装置的大功率激光器的控制单元组合。 OCDR单元的数据由控制单元分析，用于控制大功率激光。 OCDR在消融表面之前高达约3毫米的图像，使用户能够在激光损伤之前看到敏感组织，如神经或动脉。

公开(公告)号：US06419484B1

公开(公告)日：2002-07-16

申请号：US09660036

申请日：2000-09-12

申请人： Luiz B. DaSilva ,  Bill W. Colston, Jr. ,  Dale L. James

发明人： Luiz B. DaSilva ,  Bill W. Colston, Jr. ,  Dale L. James

IPC分类号： A61C100

CPC分类号： A61B5/0066 ,  A61B5/0088 ,  A61C1/0007 ,  A61C1/088 ,  G01B9/02028 ,  G01B9/02091

摘要： A dental drill that has one or multiple single mode fibers that can be used to image in the vicinity of the drill tip. It is valuable to image below the surface being drilled to minimize damage to vital or normal tissue. Identifying the boundary between decayed and normal enamel (or dentine) would reduce the removal of viable tissue, and identifying the nerve before getting too close with the drill could prevent nerve damage. By surrounding a drill with several optical fibers that can be used by an optical coherence domain reflectometry (OCDR) to image several millimeters ahead of the ablation surface will lead to a new and improved dental treatment device.

摘要翻译： 具有一个或多个单模光纤的牙钻可用于在钻尖附近成像。 在正在钻孔的表面下方成像以减少对重要或正常组织的损伤是有价值的。 识别朽烂和正常牙釉质（或牙质）之间的边界将减少活组织的去除，并且在与钻头变得太靠近之前识别神经可以防止神经损伤。 通过围绕可以通过光学相干畴反射（OCDR）使用的多个光纤的钻孔，以在切割表面之前的几毫米处成像，将导致新的和改进的牙科治疗装置。