Final answer:
The thoracic endoscopic procedure is not designed for removing food or foreign body obstructions, but for treatment and diagnosis of disease, and monitoring therapy effects including the use of tissue biopsies.
Step-by-step explanation:
The purpose of a thoracic endoscopic procedure is not to remove food or foreign body obstructions. These procedures typically include the treatment of diseased tissue by resection or repair, diagnosis of pathological processes and/or determining exact location by obtaining tissue biopsies and/or secretion specimens, and to observe periodically the effects of therapy. Endoscopes are medical devices that allow doctors to look inside the body's hollow organs and cavities to diagnose internal physical problems and sometimes to perform surgeries, such as collecting biopsies or removing polyps.