William H Duncan

US Patent:

50550519, Oct 8, 1991

Filed:

Aug 3, 1990

Appl. No.:

7/561885

Inventors:

William J. Duncan - Roswell GA

Assignee:

Dornier Medical Systems, Inc. - Marietta GA

International Classification:

G09B 2330
G09B 2328
G09B 2300
A61B 506

US Classification:

434262

Abstract:

An apparatus and method for training physicians and technicians to locate stones found in simulated human body organs, principally simulated biliary and renal calculi, and then actually fragment these calculi using ESWL. A reusable semi-anthropomorphic phantom comprises an opaque liver tissue-equivalent mass having anatomically correct simulated organ cavities associated with the midsection of a human body, principally the gall bladder and the kidney. Channels lead from the exterior of the phantom to the simulated organs. A concrement is introduced into at least one simulated organ, the channels and simulated organs are filled with a fluid-like substance, and the channels are closed with plugs. A trainee then utilizes an ultrasound or X-ray locating device to examine the phantom until the concrements are located. The coordinates of the located concrements are then utilized with a concrement destroying apparatus such as an extracorporeal shock wave lithotripter (ESWL).