Cautery device

• US 3,100,489 A
• Filed: 09/30/1957
• Issued: 08/13/1963
• Est. Priority Date: 09/30/1957
• Status: Expired due to Term

• Current Assignee: Russell W. Bagley
• Original Assignee: Russell W. Bagley
• Inventors: Bagley, Russell W.
• Application Number:
  US03/687,150
• Time in Patent Office: 2,143 Days
• US Class Current: 606/42
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 2018/00928 by sending a signal to an external energy source

Claims

1. A CONTROL UNIT FOR A RADIO FREQUENCY CAUTERY INSTRUMENT, SAID CONTROL UNIT COMPRISING A FORCEPS COMPRISING A PAIR OF OPPOSED ELONGATED FORCEPS ARMS SECURED TOGETHER AT ONE END AND ADAPTED TO BE BROUGHT TOGETHER AT THEIR FREE ENDS BY SLIGHT PRESSURE ON THE OPPOSITE ARMS, A PAIR OF ELECTRICAL SWITCH CONTACT ELEMENTS POSITIONED ON THE RESPECTIVE INSIDE SURFACES OF SAID FORCEPS ARMS INTERMEDIATE OF THEIR FREE AND SECURED ENDS, SAID SWITCH ELEMENTS BEING POSITIONED TO COME INTO CONTACT WITH EACH OTHER UPON APPLICATION OF PRESSURE TO THE OUTSIDE SURFACES OF SAID FORCEPS ARMS, ONE OF SAID SWITCH CONTACT ELEMENTS BEING IN DIRECT ELECTRICAL CONTACT WITH THE BODY OF SAID FORCEPS, THE SECOND OF SAID SWITCH CONTACTS BEING ELECTRICALLY INSULATED FROM SAID FORCEPS BODY, A FIRST ELECTRICAL CONDUCTOR SECURED IN ELECTRICAL CONTACT WITH SAID FORCEPS BODY AND FIRST SWITCH CONTACT ELEMENT, A SECOND ELECTRICAL CONDUCTOR SECURED IN ELECTRICAL CONTACT WITH SAID SECOND SWITCH CONTACT ELEMENT BUT ELECTRICALLY INSULATED FROM SAID FORCEPS BODY AND AN INSULATING COATING COVERING ALL OF SAID FORCEPS EXCEPT THE FREE END TIPS AND SAID SWITCH CONTACT ELEMENTS, MEANS FOR CONNECTING THE FIRST CONDUCTOR SECURED IN ELECTRICAL CONTACT WITH SAID FORCEPS