X-ray diagnostic apparatus
First Claim
1. An X-ray diagnostic apparatus comprising:
- a rotation arm having a pair of mutually confronting arm units;
X-ray radiographing component devices mounted on forward ends of said arm units and movable about a subject lying on a catheter table by rotating the rotation arm about the catheter table, where the X-ray radiographing component devices include an X-ray exposure unit and an image intensifier, the X-ray exposure unit being mounted on a forward end of one of the arm units, and the image intensifier being mounted on a forward end of an other of the pair of arm units;
elastic protection covers disposed in a path of travel of the X-ray exposure unit and the image intensifier; and
pressure sensors located along inner surfaces of the protection covers and which are operative by sensing an external force to stop a rotation of the rotation arm, wherein said pressure sensor is formed of an elastic optical fiber having flexibility, the elastic optical fiber including an elastic core having a high refractive index, an elastic clad overlying the elastic core and having a low refractive index, and a cover surrounding an outer surface of the elastic clad.
1 Assignment
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Accused Products
Abstract
A protection cover includes a pressure responsive means mounted within the cover along its inner wall surface and which operates responsive to external forces to be exerted upon contact with a neighboring object. The protection cover is provided at a portion where physical contact may occur between any of movable or rotating component devices of an X-ray diagnostic apparatus, such as, an X-ray exposure unit or an image intensifier, and a neighboring object which is in the path of the component devices, such as, a subject or a catheter table. The protection cover may, for example, be provided at a moving end of a component X-ray diagnostic apparatus, such as, the forward end of the image intensifier, or may be mounted, instead of being mounted on a movable component device, on a neighboring object at its side facing to the movable part of the component devices, such as, a stand section of the catheter table, which lies in the path of a moving part of the X-ray radiographing component devices.
24 Citations
3 Claims
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1. An X-ray diagnostic apparatus comprising:
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a rotation arm having a pair of mutually confronting arm units; X-ray radiographing component devices mounted on forward ends of said arm units and movable about a subject lying on a catheter table by rotating the rotation arm about the catheter table, where the X-ray radiographing component devices include an X-ray exposure unit and an image intensifier, the X-ray exposure unit being mounted on a forward end of one of the arm units, and the image intensifier being mounted on a forward end of an other of the pair of arm units; elastic protection covers disposed in a path of travel of the X-ray exposure unit and the image intensifier; and pressure sensors located along inner surfaces of the protection covers and which are operative by sensing an external force to stop a rotation of the rotation arm, wherein said pressure sensor is formed of an elastic optical fiber having flexibility, the elastic optical fiber including an elastic core having a high refractive index, an elastic clad overlying the elastic core and having a low refractive index, and a cover surrounding an outer surface of the elastic clad. - View Dependent Claims (2, 3)
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Specification