Radiation-delivery device
AssigneeThe General Hospital Corporation
InventorRichard Rox Anderson
Life of this patent
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Abstract
A method and device for irradiating a material, such as a tissue in a patient, is described. The method features the step of first exposing the tissue with radiation. Following the exposing step, the radiation is partially re-emitted (e.g., reflected or scattered) from the tissue. The re-emitted radiation is then collected and imaged back onto the tissue using an external irradiating device containing, for example, a hemispherically shaped reflective housing. The housing contains a reflective coating disposed on one of its surfaces.
Claims30
A method for irradiating a material, said method comprising:
- delivering radiation to said material, the material partially re-emitting the delivered radiation,
- positioning a non-diffusive reflective surface to receive substantially all of the re-emitted radiation, and
- reflecting the re-emitted radiation to the material using a non-diffusive reflective surface.
A device for use in delivering radiation from an external radiation source to a material, comprising:
- a reflective housing configured to receive radiation from the radiation source, said housing comprising an opening or surface for placement over a material and a non-diffusive reflective interior surface proximal to said opening or surface, said reflective interior surface being shaped to receive radiation re-emitted by the material and reflect the re-emitted radiation back onto the material.
A device delivering radiation to a material, comprising:
- a radiation source, said radiation source being a laser, and
- a reflective housing configured to receive radiation from said radiation source, said housing comprising an opening or surface for placement over a material and a non-diffusive reflective interior surface proximal to said opening or surface, said reflective interior surface being shaped to receive radiation re-emitted by the material and reflect the re-emitted radiation back onto the material.
A device for use in delivering radiation from a radiation source to a material, comprising
- an optically transparent plate, comprising a reflective coating on a surface, said reflective coating being disposed on the plate to transmit normally incident radiation from the radiation source, receive radiation re-emitted from a material, and reflect re-emitted radiation incident on the coating at an angle back onto the material.
A device for use in delivering radiation to a material, comprising
- a reflective housing configured to receive radiation from a radiation source, said housing comprising an opening or surface for placement over a material and a reflective interior surface proximal to said opening or surface, said reflective interior surface being shaped to receive radiation re-emitted by the material and reflect the re-emitted radiation back onto the material, wherein said reflective interior surface is an array of grooves formed in said reflective housing.
A device for use in delivering radiation to a material, comprising
- a reflective housing configured to receive radiation from a radiation source, said housing comprising an opening or surface for placement over a material and a reflective interior surface proximal to said opening or surface, said reflective interior surface being shaped to receive radiation re-emitted by the material and reflect the re-emitted radiation back onto the material, wherein said reflective interior surface is substantially hemispherical in shape and said opening is positioned at a center of the hemisphere.
A device for use in delivering radiation to a material, comprising
- a reflective housing configured to receive radiation from a radiation source, said housing comprising an opening or surface for placement over a material and a reflective interior surface proximal to said opening or surface, said reflective interior surface being shaped to receive radiation re-emitted by the material and reflect the re-emitted radiation back onto the material, wherein said reflective interior surface is substantially elliptical in shape and said opening is positioned at a focus of the ellipse.
A device for use in delivering radiation to a material, comprising
- a reflective housing configured to receive radiation from a radiation source, said housing comprising an opening or surface for placement over a material and a reflective interior surface proximal to said opening or surface, said reflective interior surface being shaped to receive radiation re-emitted by the material and reflect the re-emitted radiation back onto the material, wherein said reflective interior surface is substantially conical in shape and said opening is positioned at a base of the cone.
Dependencies are inferred from the claim text.