Methods and apparatus for intraocular brachytherapy
First Claim
1. A method for delivering radiation to a target tissue in an eye from the interior of the eye with a radiation delivery device having an elongated probe associated therewith, the probe having a distal end through which radiation can be selectively administered to the target tissue, the method comprising:
- creating an access to the interior of the eye through a surface of the eye;
introducing the probe into the interior of the eye through the access;
positioning the distal end of the probe a predetermined distance from the target tissue;
protecting non-target tissue from radiation emitted from the distal end of the probe;
delivering a dose of radiation to the target tissue, including attenuating the peak radiation dose delivered by the probe to the target tissue.
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Accused Products
Abstract
A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end. A positioning system for the cannula is also disclosed.
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Citations
12 Claims
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1. A method for delivering radiation to a target tissue in an eye from the interior of the eye with a radiation delivery device having an elongated probe associated therewith, the probe having a distal end through which radiation can be selectively administered to the target tissue, the method comprising:
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creating an access to the interior of the eye through a surface of the eye; introducing the probe into the interior of the eye through the access; positioning the distal end of the probe a predetermined distance from the target tissue; protecting non-target tissue from radiation emitted from the distal end of the probe; delivering a dose of radiation to the target tissue, including attenuating the peak radiation dose delivered by the probe to the target tissue. - View Dependent Claims (2, 3, 4)
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5. A method for delivering radiation to a target tissue in an eye from the interior of the eye with a radiation delivery device having an elongated probe associated therewith, the probe having a distal end through which radiation can be selectively administered to the target tissue, the method comprising:
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creating an access to the interior of the eye through a surface of the eye; introducing the probe into the interior of the eye through the access; positioning the distal end of the probe a predetermined distance from the target tissue; and protecting non-target tissue; and
delivering a dose of radiation to the target tissue from radiation emitted from the distal end of the probe by deploying a mask of a radiation-blocking material over the non-target tissue. - View Dependent Claims (6, 7, 8)
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9. A method for delivering radiation to a target tissue in an eye from the interior of the eye with a radiation delivery device having an elongated probe associated therewith, the probe having a distal end through which radiation can be selectively administered to the target tissue, the method comprising:
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creating an access to the interior of the eye through a surface of the eye; introducing the probe into the interior of the eye through the access; positioning the distal end of the probe a predetermined distance from the target tissue; protecting non-target tissue from radiation emitted from the distal end of the probe; and protecting the non-target tissue with a shielding structure associated with the distal end of the probe; and
delivering a dose of radiation to the target tissue. - View Dependent Claims (10, 11, 12)
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Specification