公开(公告)号：US06879659B2

公开(公告)日：2005-04-12

申请号：US10450369

申请日：2001-12-13

Applicant: Markus Alber

Inventor： Markus Alber

IPC: A61N5/10 ,  G21K1/02

CPC classification number: A61N5/1031 ,  A61N5/1036 ,  G21K1/025

Abstract: An optimization method for a fluence pattern to be provided via a radiotherapeutic apparatus comprising a multi-leaf collimator comprises an iteration of a progressive solution (such as a gradient approach) of the fluence profile, at least some iterations including a weighted penalty function which varies between solutions favored by the collimator design and solutions not so favored, later iterations including the penalty function at a greater weight. Thus, the penalty function represents locally preferred solutions derived from the constraints of the multi-leaf collimator (MLC). As the iteration progresses, the greater weight assigned to the penalty function drives the method towards a solution which is possible given the MLC constraints. However, the lesser weight attached in the early stages of the iteration allows the method to settle towards a genuinely preferred solution. Overall, therefore, the method migrates towards a theoretically ideal solution and then diverts to a nearby practically possible solution. In this way, a solution is obtained which can be put into practice but is close to a theoretically ideal solution, ie a solution that would be preferred in the absence of MLC constraints. It is preferred that the penalty function is calculated over a part of the fluence profile in the region of the then location of the iteration solution. The method can be embodied in a suitable computer program, which can be stored on a data carrier. An apparatus can comprising a storage means in which the program is located and a processing means for running the program.

Abstract translation: 用于通过包括多叶准直器的放射治疗装置提供的注量图案的优化方法包括通量曲线的渐进方案（例如梯度方法）的迭代，至少一些迭代，包括变化的加权惩罚函数 在准直器设计和解决方案所支持的解决方案之间不太受欢迎，后来的迭代包括更大的重量的惩罚功能。 因此，惩罚函数表示从多叶准直器（MLC）的约束导出的局部优选解。 随着迭代的进行，分配给惩罚函数的较大权重将驱动方法转向可能给出MLC限制的解决方案。 然而，在迭代的早期阶段附着的较小的重量使得该方法能够达到真正优选的解决方案。 因此，总的来说，该方法向理论上的理想解决方案迁移，然后转移到附近的实际可能的解决方案。 以这种方式，可以获得可以付诸实践的解决方案，但是接近理论上的理想解，即在不存在MLC约束条件下优选的解决方案。 优选的是，在迭代溶液的当时位置的区域中，通过一定能量特性的一部分来计算惩罚函数。 该方法可以体现在可以存储在数据载体上的合适的计算机程序中。 一种装置可以包括其中定位有程序的存储装置和用于运行程序的处理装置。

公开(公告)号：US20120326414A1

公开(公告)日：2012-12-27

申请号：US13483511

申请日：2012-05-30

Applicant: Markus Alber

Inventor： Markus Alber

IPC: G01L1/08 ,  A61G5/10 ,  A61G5/02

CPC classification number: A61G5/02 ,  A61G5/048 ,  A61G5/10 ,  A61G2203/36

Abstract: A sensor arrangement for a wheelchair wheel that has a running wheel with a hub and a hand rim includes a running wheel fastening arrangement that is fastened to the running wheel, a hand rim fastening arrangement that is fastened to the hand rim and at least one sensor that detects a movement of the hand rim fastening arrangement relative to the running wheel fastening arrangement. Two restoring elements are provided on the running wheel fastening arrangement and rest against the hand rim arrangement with a prestressing force at least in the zero position. Both restoring elements rest against at least one stop of the running wheel fastening arrangement in the zero position of the sensor arrangement.

Abstract translation: 一种用于轮椅轮的传感器装置，其具有带轮毂和手轮的跑步轮，包括紧固在行进轮上的行走轮紧固装置，固定在手轮上的手轮紧固装置和至少一个传感器 其检测手轮紧固装置相对于行走轮紧固装置的运动。 两个恢复元件设置在行进轮紧固装置上，并且以至少在零位置的预应力抵靠手轮装置支撑。 在传感器装置的零位置，两个恢复元件都抵靠运行轮紧固装置的至少一个止挡件。

公开(公告)号：US08657320B2

公开(公告)日：2014-02-25

申请号：US13483511

申请日：2012-05-30

Applicant: Markus Alber

Inventor： Markus Alber

IPC: A61G5/04

CPC classification number: A61G5/02 ,  A61G5/048 ,  A61G5/10 ,  A61G2203/36

Abstract: A sensor arrangement for a wheelchair wheel that has a running wheel with a hub and a hand rim includes a running wheel fastening arrangement that is fastened to the running wheel, a hand rim fastening arrangement that is fastened to the hand rim and at least one sensor that detects a movement of the hand rim fastening arrangement relative to the running wheel fastening arrangement. Two restoring elements are provided on the running wheel fastening arrangement and rest against the hand rim arrangement with a prestressing force at least in the zero position. Both restoring elements rest against at least one stop of the running wheel fastening arrangement in the zero position of the sensor arrangement.

Abstract translation: 一种用于轮椅轮的传感器装置，其具有带轮毂和手轮的跑步轮，包括紧固在行进轮上的行走轮紧固装置，固定在手轮上的手轮紧固装置和至少一个传感器 其检测手轮紧固装置相对于行走轮紧固装置的运动。 两个恢复元件设置在行进轮紧固装置上，并且以至少在零位置的预应力抵靠手轮装置抵靠。 在传感器装置的零位置，两个恢复元件都抵靠运行轮紧固装置的至少一个止挡件。