MARK A D'ANDREA, M.D.
Radiology at Beamer Rd, Houston, TX

2013031, Nov 28, 2013

May 23, 2012

13/478794

Mark A. D'Andrea - Houston TX, US

A61M 36/10, A61M 36/02

600 2, 600 6

Intracavitary brachytherapy tandem and ovoid oncology treatment systems and methods are provided. One such system and method employs a multi-part tandem having a detachable distal section retained within a body cavity during and between radiation treatments. This can be for single-patient use and disposed of after completion of a multiple-dose radiation treatment session. Real time in vivo detection and monitoring and hytpertherapy features can be included. Tandem or ovoid colpostats can feature bendability to tailor the system to the specific body and patient being treated. Other systems and methods incorporate balloon devices that assist in spacing radiation doses away from chosen body sites. Balloon devices also can be provided for adjusting and maintaining separation spacing between two ovoid colpostats.

5720717, Feb 24, 1998

Jan 24, 1997

8/787272

Mark A. D'Andrea - Pasadena TX

A61B 1736

604 21

The present invention provides a significantly improved therapeutic tool for radiation therapy in or near body cavities accessible through existing orifices. At least one therapeutic balloon of a catheter and balloon assembly is inflated by fluid communication through the catheter. Several embodiments provide radiation therapy, at times in association with one or more of formation of seals, control of movement, nutrient passage and drainage. The radiation therapy is provided by means of rods or other radiotherapeutic items secured, positioned or inserted along the contour of the surface of the therapeutic balloon and which are thus deployed to treatment position by balloon inflation. Control of movement can be achieved through the use of a small balloon usually located where the body cavity changes size, such as at the body orifice; through the use of a template, which may be sutured to nearby tissue or secured with tether catheter assemblies inserted in other body cavities; through the use of a catheter lead which is inserted into narrow portions of a body cavity; or through the use of a secondary balloon located distally of the larger therapeutic balloon. Drainage, often required when performing this procedure in the bladder or rectum, is achieved by the use of a Foley-type catheter.

5653683, Aug 5, 1997

Feb 28, 1995

8/395865

Mark A. D'Andrea - Pasadena TX

A61B 1736

604 21

The present invention provides a significantly improved therapeutic tool for radiation therapy in or near body cavities accessible through existing orifices. At least one therapeutic balloon of a catheter and balloon assembly is inflated by fluid communication through the catheter. Several embodiments provide radiation therapy, at times in association with one or more of formation of seals, control of movement, nutrient passage and drainage. The radiation therapy is provided by means of rods or other radiotherapeutic items secured, positioned or inserted along the contour of the surface of the therapeutic balloon and which are thus deployed to treatment position by balloon inflation. Control of movement can be achieved through the use of a small balloon usually located where the body cavity changes size, such as at the body orifice; through the use of a template, which may be sutured to nearby tissue or secured with tether catheter assemblies inserted in other body cavities; through the use of a catheter lead which is inserted into narrow portions of a body cavity; or through the use of a secondary balloon located distally of the larger therapeutic balloon. Drainage, often required when performing this procedure in the bladder or rectum, is achieved by the use of a Foley-type catheter.