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:
Nov. 10, 2015
Filed:
Jan. 21, 2011
Hideta Habara, Musashino, JP;
Yoshitaka Bito, Kokubunji, JP;
Hisaaki Ochi, Kodaira, JP;
Yoshihisa Soutome, Tokyo, JP;
Masayoshi Dohata, Yokohama, JP;
Tetsuhiko Takahashi, Tokyo, JP;
Hiroyuki Takeuchi, Kashiwa, JP;
Hideta Habara, Musashino, JP;
Yoshitaka Bito, Kokubunji, JP;
Hisaaki Ochi, Kodaira, JP;
Yoshihisa Soutome, Tokyo, JP;
Masayoshi Dohata, Yokohama, JP;
Tetsuhiko Takahashi, Tokyo, JP;
Hiroyuki Takeuchi, Kashiwa, JP;
Hitachi Medical Corporation, Tokyo, JP;
Abstract
There is provided a technique for securing a comfortable examination space in a tunnel type MRI apparatus without increasing the manufacturing cost of the MRI apparatus and sacrificing performance thereof. In an RF coil provided with a hollow-shaped outer conductive element and a strip-shaped conductive element disposed along the outer conductive element in the axial direction, meander lines constituting the strip-shaped conductive element are disposed at uneven distances from the outer conductive element to secure an internal space. In order to obtain uniform sensitivity at the center of the RF coil, the strip-shaped conductive element is constituted with N of connected meander lines, and length of the strip-shaped conductive element is adjusted so that, in the strip-shaped conductive element resonating at resonance frequency of the antenna, nodes are formed in a number of (M+1)×N−1, wherein M is 0 or a natural number of 1 or larger.