4 results about "Brachytherapy device" patented technology

The utility model relates to after-loading radiotherapy equipment. The after-loading radiotherapy equipment comprises an after-loading radiotherapy device which is used for conveying a stored radioactive source into the body of a target object; the radiotherapy bed comprises a bed plate used for supporting a target object; and the shielding structure is used for sealing the afterloading radiotherapy device and the bed plate in the internal space of the shielding structure so as to prevent radiation of the radioactive source from leaking to the outside. Therefore, the after-loading radiotherapy equipment can be deployed in a small or non-fixed site, and can be quickly deployed.

The invention belongs to the technical field of radiopharmaceuticals and medical instruments, and discloses a preparation method and application of a palladium-103 brachytherapy source core. And the source core is composed of graphite particles which are subjected to surface modification treatment and are adsorbed with radionuclide palladium 103. The preparation method comprises the following steps: preparing graphite particles; acidizing and / or activating the graphite particles to introduce oxygen-containing functional groups on the surfaces of the particles and / or form porous structures to obtain surface modified graphite particles; and then mixing the particles with an alkaline solution containing palladium 103, and completing marking through oscillation adsorption. According to the method, the graphite particles are modified, a complex electroplating process is replaced, efficient and uniform adsorption of the palladium 103 is achieved, and the requirement for the purity of the graphite raw material is low. The method is simple in process, low in cost and easy for large-scale production, and the prepared source core is small in self-shielding effect and suitable for preparing brachytherapy devices such as a sealed seed source and an after-loading source.

The invention belongs to the technical field of medical instruments, and particularly relates to a brachytherapy equipment and CT equipment integrated device which comprises a ground structure, a moving assembly and a brachytherapy assembly, a clamping frame is fixedly connected to the rear portion of the upper end of the ground structure, and a partition plate is fixedly connected to the middle of the upper end of the ground structure; an electric push rod is fixedly connected to the upper end of the partition plate; a fixed plate is fixedly connected to the front part of the left end of the partition plate; the upper portion and the lower portion of the rear end of the fixing plate are fixedly connected with limiting rods, the outer surfaces of the two limiting rods are jointly sleeved with a baffle, the upper end of the ground structure is provided with a rail groove, the inner groove wall of the rail groove is fixedly connected with a rail, and the moving assembly is slidably connected with the rail groove and used for driving the brachytherapy assembly to move along the rail. Through driving of the two driving devices, the use position of the brachytherapy assembly can be adjusted, and a patient can complete the treatment process without getting out of a bed after CT is completed.

The disclosure relates to an improved brachytherapy device, methods of preparation, and uses thereof. More particularly, a flexible bioresorbable brachytherapy device is provided for application on a wound site in a subject. The device includes a sealed radioactive source having opposite first and second sides, wherein the sealed radioactive source includes a radioactive component comprising a plurality of radio-isotope particles dispersed within a carrier. A barrier surrounds the radioactive component providing the sealed radioactive source, wherein the barrier functions as a barrier, when implanted at the wound site, providing the sealed radioactive source for at least six half-lives of the plurality of radio-isotope particles. A bioresorbable shield located on the first side of the sealed radioactive source is configured to shield radioactivity when implanted at the wound site for at least six half-lives of the plurality of radio-isotope particles.