摘要:
Disclosed are methods and devices for monitoring total delivered dose of an analyte of interest, such as an iodine containing contrast media used during intravascular procedures. The device includes a flow rate measuring capability, and an analyte concentration measuring capability. Total cumulative delivered dose of the analyte can be determined, without regard to the number of sources of analyte and variations in concentration of the analyte delivered over the course of an intravascular procedure.
摘要:
Various systems, and methods are provided for transporting a therapeutic agent to the interior of a skeletal support structure. In one implementation, a first elongated member, a second elongated member and an expandable structure provide for non-axial access to the interior of a skeletal support structure. The second elongated member is configured to transport a radiation source through a lumen in the first elongated member to the interior of the skeletal support structure.
摘要:
A radiation delivery catheter (10) that is compatible with a transfer device wherein the radiation delivery catheter (10) is a component of a system designed to reduce the frequency of restenosis in coronary arteries after ballon angioplasty or other interventional procedures. The catheter is inserted into the patient using a guidewire and the distal tip (26) of the catheter (10) is guided to a treatement site in the artery for radioactive treatment.
摘要:
The present invention relates generally to a radioisotope delivery device (10) comprising a radioisotope housing (12) containing a series of radioisotope sources (14), and inflatable balloons (16) being located at opposing ends of the housing (12). The delivery device (10) is slidably received over a conventional guidewire (22). The inflatable balloons (16) are in this example located at opposing ends of the radioisotope housing (12) and consist of four generally elliptical-shaped balloons (16A to 16D). The balloons (16) are provided so as to radially space the radioisotope sources (14) a predetermined and fixed distance from a wall of an artery or blood vessel. The balloons (16) both in an inflated and deflated configuration provide a passage designated generally as (24) between the radioisotope housing (12) and the arterial or blood vessel wall for the flow of blood through the artery or blood vessel.
摘要:
A dual lumen catheter system for the positioning of a radioactive material for therapeutic radiation treatment of the body is disclosed. The radiation source wire (56) is tapered (50) at the distal end of the core wire.
摘要:
An apparatus and a method of inhibiting a disease process in a luminal structure of a subject comprising introducing within the luminal structure a complex of a radionuclide and a chelating agent in an amount effective to inhibit the disease process.