X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1996-10-04
1998-05-12
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Absorption
378 68, 378 69, A61N 501
Patent
active
057517819
ABSTRACT:
A treatment source (4) such as a radiation source, is attached to the inner surface 50a of a drum 50, which drum 50 is mounted to a support (3) so as to be rotatable with respect to the support (3) about a central axis (R) displaced from the treatment source (4). The source provides a treatment beam (X) having a treatment beam axis (TB) extending through the rotation axis (R). A patient support (6) for receiving a patient (2) to locate a target treatment area (6) on the treatment beam axis (TB) is housed at least partially within the passageway defined by the inner surface 50a. The overall size of the apparatus is thus reduced. A preferred treatment technique, to which the apparatus may be adapted, is also described.
REFERENCES:
patent: 4998268 (1991-03-01), Winter
patent: 5012506 (1991-04-01), Span et al.
patent: 5044006 (1991-08-01), Cyrulnik
patent: 5117829 (1992-06-01), Miller et al.
patent: 5394452 (1995-02-01), Swerdloff et al.
Bates Terence
Brown Kevin J.
Harwood William R.
Elekta AB
Porta David P.
Slobod Jack D.
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