公开(公告)号：US5147349A

公开(公告)日：1992-09-15

申请号：US254994

申请日：1988-10-07

申请人： Robert W. Johnson ,  Ralph B. Bettman ,  Acle V. Hicks ,  Michael Yessik

发明人： Robert W. Johnson ,  Ralph B. Bettman ,  Acle V. Hicks ,  Michael Yessik

IPC分类号： A61F9/00 ,  A61B18/20 ,  A61F9/008 ,  A61N5/06

CPC分类号： A61F9/00821 ,  A61F9/008 ,  A61B2018/2025 ,  A61F2009/00844 ,  A61F2009/00863

摘要： A diode laser device and method of use for achieving transcutaneous laser photocoagulation of the retina is described. A diode laser is used since it is much more efficient than the ion or dye lasers presently used for laser photocoagulation, and therefore will not require forced air of water cooling and can be made for compact. In addition, the diode laser can be used with standard 110 v wall sockets, and does not require the high power, three phase sockets required for the ion lasers. The end result is that compared to the ion laser device, the diode laser device can be brought directly into the operating room, which makes it ideal for transcutaneous delivery.A characteristic of diode lasers is that the emitted light diverges rapidly. In addition, the diode laser beam is emitted from a rectangular edge of a diode, and the light emitted along the longer sides of the rectangular edge will diverge more rapidly than that light emitted along the shorter sides of the rectangular edge. As a result, the emitted beam will become shaped as an ellipse as it travels from the rectangular edge.In one embodiment of the invention, the elliptical laser beam is shaped into a circle by an optical system before it is coupled to the fiber optic cable of the delivery system. In another embodiment, the fiber optic cable is directly coupled to the rectangular edge of the diode, making the optical system for shaping unnecessary.

公开(公告)号：US4862888A

公开(公告)日：1989-09-05

申请号：US244523

申请日：1988-09-09

申请人： Michael Yessik

发明人： Michael Yessik

IPC分类号： A61F9/008 ,  B23K26/02 ,  B23K26/10 ,  H01S3/093 ,  H01S3/11

CPC分类号： H01S3/115 ,  A61F9/008 ,  A61F9/00821 ,  B23K26/02 ,  B23K26/035 ,  B23K26/10 ,  H01S3/093 ,  A61F2009/00844 ,  A61F2009/00855 ,  H01S3/025 ,  H01S3/061 ,  H01S3/2383

摘要： A laser system which is compact, requires no cooling means and can produce either substantially continuous output or narrow single pulses of high intensity or pulse bursts comprises a closed spherical pumping cavity having a diffuse reflecting surface and a laser rod and a flashlamp mounted in non-parallel relationship in the cavity. The system is especially useful in ophthalmology.

摘要翻译： 紧凑的激光系统不需要冷却装置，并且可以产生基本上连续的输出或高强度的窄脉冲或脉冲脉冲串，包括具有漫反射表面和激光棒的闭合球形泵浦腔和安装在非激光器中的闪光灯， 腔内平行关系。 该系统特别适用于眼科。