Intraocular brachytherapy device and method
First Claim
1. An ocular brachytherapy device, comprising:
- a catheter for deliver of a radioactive treatment proximal to an affected area selected for treatment;
an elongated wire, having radioactive material on a single edge thereon, the wire being formed from a material having a shape memory and being imparted with a coil spring shape when extended from the catheter, the wire being re-elongated for insertion into the catheter;
the wire and catheter being introduced near the affected area and the wire being pushed out from the catheter such that it reforms the desired shape in the vicinity of the area to be treated;
the wire being placed in the affected area such that the radioactive edge is proximal the area to be treated; and
the catheter further comprises a balloon and means to fill the balloon with a radio opaque material so as to provide shielding, against radiation, when the device is used in ocular brachytherapy.
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Accused Products
Abstract
An ocular brachytherapy device, generally comprising a catheter and wire, impregnated with radioactive material, are provided. The wire is formed having a desired treatment shape and size such that it can be placed near an area requiring treatment and effectuate treatment while not affecting adjacent areas. For ease in placement near such areas the wire is preferably formed using materials having properties that permit formation into a desired shape while allowing the wire to be straightened for retraction into the catheter, the shape returning upon removal from the catheter. The wire is preferably impregnated with radioactive material. When the catheter is placed near the area of treatment and the wire is pushed out of the catheter, the wire retakes the desired form and provides a therapeutic radioactive treatment to the area. Preferably, the radioactive material is placed on one edge of the wire, such that the radiation can be directed to the affected area, and non-affected areas can be shielded from radiation.
89 Citations
26 Claims
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1. An ocular brachytherapy device, comprising:
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a catheter for deliver of a radioactive treatment proximal to an affected area selected for treatment; an elongated wire, having radioactive material on a single edge thereon, the wire being formed from a material having a shape memory and being imparted with a coil spring shape when extended from the catheter, the wire being re-elongated for insertion into the catheter; the wire and catheter being introduced near the affected area and the wire being pushed out from the catheter such that it reforms the desired shape in the vicinity of the area to be treated; the wire being placed in the affected area such that the radioactive edge is proximal the area to be treated; and the catheter further comprises a balloon and means to fill the balloon with a radio opaque material so as to provide shielding, against radiation, when the device is used in ocular brachytherapy.
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2. An intraocular brachytherapy device, comprising:
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a catheter for delivery of a radioactive treatment proximal to an affected area selected for treatment; an elongated wire having radioactive material thereon, the radioactive material being on a single edge portion of the wire; the elongated wire being formed from a material having a shape memory and the wire being imparted with a desired shape; the wire being disposed, at least in part, in the catheter, such that the portion of the wire in the catheter is made generally straight; the wire and catheter being introduced near the affected area and the wire being pushed out from the catheter such that it reforms the desired shape in the vicinity of the area to be treated. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification