Magnetic endoscope for probing the esophageal, stomachic, and duodenal regions of the body

• US 3,332,425 A
• Filed: 06/05/1964
• Issued: 07/25/1967
• Est. Priority Date: 06/05/1964
• Status: Expired due to Term

• Current Assignee: Betty J. Drummond, Fred E. Luborsky
• Original Assignee: Betty J. Drummond, Fred E. Luborsky
• Inventors: Luborsky, Fred E., Drummond, Betty J.
• Application Number:
  US04/372,755
• Time in Patent Office: 1,145 Days
• US Class Current: 606/106
• CPC Class Codes: A61B 1/0056 the insertion parts being asymmetric, e.g. for unilateral bending mechanisms
• CPC Class Codes: A61B 1/2736 Gastroscopes

Claims

1. AN ENDOSCOPE FOR REMOVING SWALLOWED, MAGNETIC FOREIGN OBJECTS FROM THE ESOPHAGEAL, STOMACHIC OR DUODENAL REGIONS OF THE HUMAN BODY COMPRISING:

(1) ELONGATED CABLE MEANS INCLUDING;

(A) AN OUTER TUBE-LIKE ENVELOPE HAVING A LONGITUDINAL OPENING EXTENDING THERETHROUGH, (B) OPERATOR SHAFT MEANS OF GREATER LENGTH THAN SAID ENVELOPE SLIDABLY DISPOSED WITHIN THE LONGITUDINAL OPENING THEREOF;

AND (2) A RETRIEVAL HEAD ASSEMBLY INCLUDING;

(A) PERMANENT MAGNET MEANS OPERABLY ATTACHED TO ONE END OF SAID OPERATOR SHAFT MEANS FOR RECIPROCABLE MOVEMENT WITH RESPECT TO SAID TUBELIKE ENVELOPE, (B) A NON-MAGNETIC ELONGATED CASING ATTACHED TO THE END OF SAID ENVELOPE AND HAVING A HOLLOW INTERIOR RECEIVING SAID PERMANENT MAGNET MEANS, SAID INTERIOR BEING OF GREATER LENGTH THAN SAID MAGNET MEANS SO THAT SAID MAGNET MEANS CAN BE MOVED AXIALLY BETWEEN OPERATIVE AND NONOPERATIVE POSITIONS THEREWITHIN,