公开(公告)号：US5949298A

公开(公告)日：1999-09-07

申请号：US956350

申请日：1997-10-23

申请人： R. Lawrence Ives ,  Yosuke M. Mizuhara ,  Richard V. Schumacher ,  Rand P. Pendleton

发明人： R. Lawrence Ives ,  Yosuke M. Mizuhara ,  Richard V. Schumacher ,  Rand P. Pendleton

IPC分类号： H01P1/26

CPC分类号： H01P1/262

摘要： A high power water load for microwave and millimeter wave radio frequency sources has a front wall including an input port for the application of RF power, a cylindrical dissipation cavity lined with a dissipating material having a thickness which varies with depth, and a rear wall including a rotating reflector for the reflection of wave energy inside the cylindrical cavity. The dissipation cavity includes a water jacket for removal of heat generated by the absorptive material coating the dissipation cavity, and this absorptive material has a thickness which is greater near the front wall than near the rear wall. Waves entering the cavity reflect from the rotating reflector, impinging and reflecting multiple times on the absorptive coating of the dissipation cavity, dissipating equal amounts of power on each internal reflection.

摘要翻译： 用于微波和毫米波射频源的高功率水负荷具有前壁，其包括用于施加RF功率的输入端口，衬有散射材料的圆柱形耗散腔，其具有随深度而变化的厚度，以及包括 用于反射圆柱腔内的波能的旋转反射器。 耗散腔包括一个水套，用于去除涂覆消散腔的吸收材料产生的热量，该吸收材料的厚度在靠近前壁的靠近后壁处具有更大的厚度。 进入腔体的波形从反射镜反射，在散射腔的吸收涂层上多次入射和反射，在每个内部反射上消耗相等的功率。

公开(公告)号：US06858003B2

公开(公告)日：2005-02-22

申请号：US10214286

申请日：2002-08-06

申请人： Philip C. Evans ,  Frederic H. Moll ,  Gary S. Guthart ,  William C. Nowlin ,  Rand P. Pendleton ,  Christopher P. Wilson ,  Andris D. Ramans ,  David J. Rosa ,  Volkmar Falk ,  Robert G. Younge

发明人： Philip C. Evans ,  Frederic H. Moll ,  Gary S. Guthart ,  William C. Nowlin ,  Rand P. Pendleton ,  Christopher P. Wilson ,  Andris D. Ramans ,  David J. Rosa ,  Volkmar Falk ,  Robert G. Younge

IPC分类号： A61B17/00 ,  A61B17/04 ,  A61B19/00

CPC分类号： A61B34/32 ,  A61B17/04 ,  A61B17/0469 ,  A61B34/20 ,  A61B34/30 ,  A61B34/35 ,  A61B34/37 ,  A61B34/70 ,  A61B34/71 ,  A61B34/77 ,  A61B90/361 ,  A61B2017/00243 ,  A61B2017/00703 ,  A61B2034/2065 ,  A61B2034/305 ,  A61B2034/742 ,  A61B2090/064

摘要： A surgical system or assembly for performing cardiac surgery includes a surgical instrument; a servo-mechanical system engaged to the surgical instrument for operating the surgical instrument; and an attachment assembly for removing at least one degree of movement from a moving surgical cardiac worksite to produce a resultant surgical cardiac worksite. The surgical system or assembly also includes a motion tracking system for gathering movement information on a resultant surgical cardiac worksite. A control computer is engaged to the attachment assembly and to the motion tracking system and to the servo-mechanical system for controlling movement of the attachment assembly and for feeding gathered information to the servo-mechanical system for moving the surgical instrument in unison with the resultant surgical cardiac worksite such that a relative position of the moving surgical instrument with respect to the resultant surgical cardiac worksite is generally constant. A video monitor is coupled to the control computer; and an input system is coupled to the servo-mechanical system and to the control computer for providing a movement of the surgical instrument. The video monitor displays movement of the surgical instrument while the resultant surgical cardiac worksite appears substantially stationary, and while a relative position of the surgical instrument moving in unison with the resultant surgical cardiac worksite, as a result from the movement information gathered by the motion tracking system, remains generally constant. A method of performing cardiac surgery without cardioplegia comprising removing at least one degree of movement freedom from a moving surgical cardiac worksite to produce at least a partially stationary surgical cardiac worksite while allowing a residual heart section, generally separate from the at least partially stationary surgical cardiac worksite, to move as a residual moving heart part. Cardiac surgery is performed on the at least partially stationary cardiac worksite with a surgical instrument such as needle drivers, forceps, blades and scissors.

公开(公告)号：US06468265B1

公开(公告)日：2002-10-22

申请号：US09436982

申请日：1999-11-09

申请人： Philip C. Evans ,  Frederic H. Moll ,  Gary S. Guthart ,  William C. Nowlin ,  Rand P. Pendleton ,  Christopher P. Wilson ,  Andris D. Ramans ,  David J. Rosa ,  Volkmar Falk ,  Robert G. Younge

发明人： Philip C. Evans ,  Frederic H. Moll ,  Gary S. Guthart ,  William C. Nowlin ,  Rand P. Pendleton ,  Christopher P. Wilson ,  Andris D. Ramans ,  David J. Rosa ,  Volkmar Falk ,  Robert G. Younge

IPC分类号： A61B1700

CPC分类号： A61B34/32 ,  A61B17/04 ,  A61B17/0469 ,  A61B34/20 ,  A61B34/30 ,  A61B34/35 ,  A61B34/37 ,  A61B34/70 ,  A61B34/71 ,  A61B34/77 ,  A61B90/361 ,  A61B2017/00243 ,  A61B2017/00703 ,  A61B2034/2065 ,  A61B2034/305 ,  A61B2034/742 ,  A61B2090/064

摘要： A surgical system or assembly for performing cardiac surgery includes a surgical instrument; a servo-mechanical system engaged to the surgical instrument for operating the surgical instrument; and an attachment assembly for removing at least one degree of movement from a moving surgical cardiac worksite to produce a resultant surgical cardiac worksite. The surgical system or assembly also includes a motion tracking system for gathering movement information on a resultant surgical cardiac worksite. A control computer is engaged to the attachment assembly and to the motion tracking system and to the servo-mechanical system for controlling movement of the attachment assembly and for feeding gathered information to the servo-mechanical system for moving the surgical instrument in unison with the resultant surgical cardiac worksite such that a relative position of the moving surgical instrument with respect to the resultant surgical cardiac worksite is generally constant. A video monitor is coupled to the control computer; and an input system is coupled to the servo-mechanical system and to the control computer for providing a movement of the surgical instrument. The video monitor displays movement of the surgical instrument while the resultant surgical cardiac worksite appears substantially stationary, and while a relative position of the surgical instrument moving in unison with the resultant surgical cardiac worksite, as a result from the movement information gathered by the motion tracking system, remains generally constant. A method of performing cardiac surgery without cardioplegia comprising removing at least one degree of movement freedom from a moving surgical cardiac worksite to produce at least a partially stationary surgical cardiac worksite while allowing a residual heart section, generally separate from the at least partially stationary surgical cardiac worksite, to move as a residual moving heart part. Cardiac surgery is performed on the at least partially stationary cardiac worksite with a surgical instrument such as needle drivers, forceps, blades and scissors.