 Transobturator surgical articles and methods |
| The invention overcomes the deficiencies of the prior art and provides for a surgical apparatus and ... |
|
| Inflatable isolation bag |
| OF THE PREFERRED EMBODIMENTS One aspect of the invention relates to collapsible structures which ... |
|
| Surgical retrieval assembly and associated method |
| As illustrated in FIG. 1A, a snare cauterization instrument assembly comprises a hand held control ... |
|
| Nasal mask and system using same |
| The present invention provides an improved respiratory mask that reliably and comfortably seals a ... |
|
| Cardiovascular implants of enhanced biocompatibility |
| The invention provides cardiovascular and other medical implants of a low modulus, biocompatible, ... |
|
| Endoscope system and medical treatment method |
| It is desirable if there were an endoscope system which can facilitate the exchanging of a ... |
|
| Transluminal anastomosis method and apparatus |
| There is provided in accordance with one aspect of the present invention, a method of attaching a ... |
|
| Centrifuge with clutch mechanism for synchronous blade and bowl rotation |
| In one aspect of the invention the centrifuges comprises a spindle centered on a longitudinal axis ... |
|
| Haemofiltration with filtrate flow control by adjustable venting |
| OF A PREFERRED EXAMPLE EMBODIMENT AND OF THE BEST MODE OF THE INVENTION A double tube pump 1 is ... |
|
| Infant thermal support device |
| It has therefore been an objective of the present invention to improve upon prior art incubators by ... |
|
|
Apparatus and methods for radiotherapy
| Details |
Inventors: Lewis, Dewi M.; Dollimore, Lucinda A.; Powell, Nigel; McIntire, Gregory L.; Gustow, Evan; Snow, Robert A.;
Assignee: GE Healthcare Limited (Buckinghamshire, GB)
Primary Examiner: Ganey; Steven J.
Assistant Examiner:
Attorney, Agent or Firm: Chisholm; Robert F.
The invention provides the use of a radiation source which is a low energy X-ray emitter, e.g. with an energy of emission of the principal photon in the range of 20 to 100 keV, preferably 20 to 40 keV and with a half life of 10 to 100 days, preferably 15 to 70 days, for the treatment of restenosis. Suitable radioisotopes include palladium-103, dysprosium-159, samarium-145, cadmium-109, ytterbium-169 and preferably iodine-125. High activity radioactive bodies and sources comprising such radioisotopes, and methods for the manufacture of such sources, are also disclosed. |
|
DETAILED DESCRIPTION What is claimed is: 1.
A radioactive body suitable for temporary or permanent implantation in a mammal for use in brachytherapy containing a low energy X-ray emitter which emits low energy X-rays at an activity equivalent to iodine-125 in the range of about 74 to 185 GBq (about 2 Ci to 5 Ci).
2.
A radioactive body as claimed in claim 1 wherein the low energy X-ray emitter is iodine-125, palladium-103, dysprosium-159, samarium-145, cadmium-109 or ytterbium-169.
3.
A radioactive body as claimed in claim 1 wherein the low energy X-ray emitter is iodine-125 or palladium-103.
4.
A radioactive body as claimed in claim 1 which is a sealed source.
5.
A radioactive body as claimed in claim 1 which is a seed.
6.
A radioactive body as claimed in claim 1 which comprises one or more radioactive sources.
7.
A radioactive body as claimed in claim 6 wherein the radioactive source comprises a radioisotope and one or more supports.
8.
A radioactive body as claimed in claim 7 wherein the support is a bead, rod, wire or filament.
9.
A radioactive body as claimed in claim 7 wherein the support is a bead of ion exchange resin, graphite, ceramic, zeolite, any form of carbon or another porous material.
10.
A radioactive body as claimed in claim 1 wherein the X-ray emitter is iodine-125, and wherein the iodine-125 is present in the form of an insoluble metal iodide on the surface of a suitable support.
11.
A radioactive body as claimed in claim 10 wherein the support comprises a metal chosen from silver, copper, palladium, thallium, gold, lead or platinum.
12.
A radioactive source as claimed in claim 10 wherein the metal is silver.
13.
A radioactive body as claimed in claim 1, which is cylindrical and which contains a plurality of radioactive sources, wherein each source comprises a radioisotope and a support in the shape of a bead, rod, wire or filament, characterised in that the sources at the ends of the cylindrical body have higher activity than the sources at the centre of the cylindrical body, such that the radiation field around the radioactive body is substantially cylindrically uniform
|
| Related patents |
|
|
Rotary pump
OF THE INVENTION FIG. 1 depicts the preferred embodiment of the pump of the instant invention. The pump is comprised of three sections: the impeller section 1, the ...
|
|
|
Catheter having two coaxial lumens
The catheter of the present invention includes a generally cylindrical inner tube inserted within a generally cylindrical outer tube. The tubes are preferably formed of ...
|
|
|
Multilumen catheter
OF THE INVENTION Referring now to the drawings, one embodiment of the multilumen catheter according to the present invention is shown in FIGS. 1A-1D. Referring to FIG. 1...
|
|
|
Surgical drainage tube system
It is therefore an object of the present invention to provide an improved wound drainage system wherein an adaptable wound drainage tube is employed with appropriate ...
|
|
|
Method for introducing cardioplegia solution into the coronary sinus
In its broader aspects, the invention comprises a catheter for supplying liquid to the coronary sinus in a perfusion procedure. The catheter comprises a tubular catheter ...
|
|
|
Catheter system for the isolation of a segment of blood vessel
In accordance with one aspect of the present invention, a catheter for isolating a segment of a blood vessel is provided. It includes a guiding catheter having a ...
|
|
|
Device for treating tissues with an electromagnetic field
What is claimed is: 1. A method for normalising biological functions of living tissues by action of an electromagnetic field to injured tissues comprising the steps of: ...
|
|
|
Flexible microscope slide
It is an object of the present invention to provide a microscope slide adapted for supravital staining of cells in a biological fluid or tissue sample. It is another ...
|
|
|
Endoscopic instrument for forming an artificial valve
The first object of the present invention is to provide the apparatus and method for forming a valve including the proper muscularis below the mucous membrane to prevent ...
|
|
|
Intracardiac blood pump
What is claimed is: 1. An intracardiac blood pump, comprising: a pump section having a distal end and a proximal end, dimensioned for receipt within a blood lumen and ...
|
|
|
Heart Surgery 
