Reference display systems for superimposing a tomagraphic image onto the focal plane of an operating microscope
US4722056A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1986 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Feb 18, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3929
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A reference display system that receives information from an imaging system (e.g., a CT scanner or the like), that extracts or derives three-dimensional anatomical and/or pathological information about a part of a body (e.g., the brain or other organ) of a patient. The information is digitized in the imaging system and is introduced to a computer that is programmed to reformat the digitized information to provide as output electric signal representative of the digitized information. An optical display system (e.g., a cathode ray tube, CRT, and related circuitry) is connected to receive the output of the computer and is operable to present the reformatted information at a determined plane during an operative procedure. An operating microscope is freely located in the operative location relative to the patient during the operative procedure, the focal plane of the microscope establishing the determined plane. A way is provided to establish the spatial relationship among the imaging system, the patient, and the focal plane of the microscope; and a mechanism is provided to project the reformatted imaging system information into the optics and onto the focal plane of the operating micro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.