The present invention relates to a loader device, for dispensing implantation seeds from a seed magazine and, optionally, a spacer magazine.

Disclosed are novel radioactive compositions which are particularly suited for treating solid mass tumors via catheter delivery.

A method and device for applying a radioactive source to a tissue site is disclosed. The device facilitates the precise placement of, for example, .sup.125Iodine seeds relative to the surgical margin, assures the seeds remain fixed in their precise position for the duration of the treatment, overcomes the technical difficulties of manipulating the seeds through the narrow surgical incision, and reduces the radiation dose to the clinicians. The device incorporates the radioactive seeds into a fas...

A loader device, for dispensing implantation seeds from a seed magazine, comprising a body (3), seed magazine receiving and locating means (27), seed dispensing means (37) for ejecting seeds from a seed magazine, and a seed-transporting path (17) leading to a dispensing outlet (8), which loader device further comprises a spacer-transporting path (29, 31, 33, 35) for transporting spacers through the device to the dispensing outlet (8).

An injection and solidification operation as well as a kneading and solidification operation can be performed by a single facility. A decreased amount of radioactive secondary waste is generated. A solidifying agent paste is prepared by kneading a solidifying agent and additive water. The solidifying agent paste is injected into a solidifying container. The radioactive waste is charged into the solidifying container and kneaded.

A device, system and method for delivering radiation to interior body sites, including stenosed blood vessel regions for the purpose of inhibiting restenosis after angioplasty. A string having a radioactive first region, a second region, and an intermediate region is disposed within or along an elongate shaft having a distal return member. The string intermediate portion is typically initially looped over the distal return member. The radioactive region is normally initially disposed within a ra...

The present invention provides a method for preparing an implantable, medical device having at least one radioactive metallic surface. The method comprises the steps of depositing a radioactive metal layer onto the surface of the device. The metal layer comprises a radioactive metal that emits beta particles and that has a half-life of between 2 hours and 7 days and a maximum beta energy of between 0.7 and 2.3 MeV. In one embodiment, the radioactive layer is deposited by electroplating the radio...

In projecting radioactive rays for sanitizing food or the like, an irradiating condition which attains a uniform dose of radioactive rays for the entire objects to be exposed is automatically determined. An X-ray CT unit 6 captures a sectional image of an object to be exposed 2, and an irradiating condition determining section 8 acquires the density distribution of the object to be exposed 2 based on the captured sectional image. The irradiating condition determining section 8 then searches for ...

A urethane based polymer composition is provided that exhibits superior shielding properties during and after exposure to high level radiation. The composite is formed by mixing a liquid isocyanate monomer, preferably 4,4'-diisocyanate monomer with a liquid phenolic resin, preferably phenol formaldehyde resin, and a phosphate ester flame retardant. An optional pyridine catalyst may be added to shorten the cure time. The resulting composition cures at room temperature and can be utilized in sever...

A radioactive iodine-labeled compound represented by the following formula (I): ##STR00001## wherein X represents a radioactive iodine atom which may substitute at an arbitrary position on the benzene ring (preferably .sup.123I, .sup.125I and the like.), n represents an integer of 1 to 3, R.sup.1 and R.sup.2 each independently represent a substituted or unsubstituted alkyl group, Y represents an alkylene group having 1 to 6 carbon atoms (preferably methylene group), M represents a counter ion, a...