Endoscope that can be completely swallowed by patient has transmitter-receiver for sending image signals and receiving control commands allowing it be maintained accurately in body for long periods

摘要

Endoscope has a flexible rod type body that can be swallowed by a patient and a remote external device at which images originating from the endoscope can be viewed and the flexible end can be controlled. The body includes at least one light source, two observation systems, a transmitter and a receiver. The external element has a receiver for electromagnetic image signals from the endoscope.