Systems and methods for making and using multi-blade collimators
US8824638B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2011 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Nov 15, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/487
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for making and using a multi-blade collimator device are described herein. The collimator device can include a base member, a rotational member, and multiple X-ray-attenuating blades that fit together to define an aperture. The blades are typically disposed between the base member and rotational member. Additionally, the blades can be mechanically connected to or interfaced with the base member and the rotational member so that when the rotational member is rotated with respect to the base member, the blades move and cause the aperture to change in size. The aperture can be any shape, including polygonal, square, or rectangular. While the aperture's size can be increased and decreased, the shape and orientation of the aperture can remain substantially constant. The collimator can contain a single layer of blades or multiple layers of blades. Other embodiments are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.