The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 1985
Filed:
Sep. 28, 1982
Heribert Amtmann, Langensendelbach, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
An exemplary embodiment comprises an image intensifier television chain and an image subtraction device, connected thereto, with three image memories. In two image memories, a blank image is stored, respectively, whereby the first blank image is automatically stored long before commencement of the rise of the contrast medium concentration. Through observation of the difference image in a fluoroscopy operation with a low dose rate, the time of the rise of the contrast medium concentration can be precisely located. Then a radiographic recording series follows with a high dose rate per image. This radiographic series may be retained in an on-line operation using a hard copy-series device. No subsequent off-line-operation is necessary.