Control system for surgical apparatus

• US 3,089,496 A
• Filed: 08/19/1959
• Issued: 05/14/1963
• Est. Priority Date: 08/19/1959
• Status: Expired due to Term

• Current Assignee: John Degelman
• Original Assignee: John Degelman
• Inventors: JOHN DEGELMAN
• Application Number:
  US03/834,819
• Time in Patent Office: 1,364 Days
• US Class Current: 606/42
• CPC Class Codes: A61B 18/12 by passing a current through the tissue to be heated, e.g. high-frequency current
• CPC Class Codes: A61B 18/1206 Generators therefor
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 2018/0066 without feedback, i.e. open loop control
• CPC Class Codes: A61B 2018/00928 by sending a signal to an external energy source

Claims

1. SURGICAL APPARATUS FOR OPERATING AN TISSUE WHICH IS CONDUCTIVELY COUPLED TO A POINT OF REFERENCE POTENTIAL, COMPRISING A PROBE INCLUDING A SURGICAL ELECTRODE PROTRUDING THEREFROM, MEANS FOR APPLYING HIGH FREQUENCY ENERGY BETWEEN SAID ELECTRODE AND SAID REFERENCE POINT, CONDUCTIVE COUPLING MEANS CONNECTED TO SAID ELECTRODE SAID COUPLING MEANS PRESENTING A HIGH IMPEDANCE AT SAID HIGH FREQUENCY, CONTROL MEANS INCLUDING A RELAY, HAVING A COIL AND AT LEAST ONE SET OF CONTACTS, A RELAY CONTROL CIRCUIT AND A VOLTAGE SOURCE, BOTH SAID RELAY CONTROL CIRCUIT AND SAID VOLTAGE SOURCE BEING CONNECTED TO SAID POINT OF REFERENCE POTENTIAL, SWITCHING MEANS HAVING A PAIR OF CONTACTS DISPOSED ON SAID PROBE, MEANS CONNECTING ONE CONTACT OF SAID SWITCHING MEANS TO SAID COUPLING MEANS AND MEANS CONNECTING THE OTHER CONTACT OF SAID SWITCHING MEANS TO SAID RELAY CONTROL CIRCUIT, THE CONTACTS OF SAID RELAY BEING NORMALLY OPEN AND BEING CONNECTED SO AS TO INTERRUPT THE APPLICATION OF HIGH FREQUENCY ENERGY TO SAID ELECTRODE WHEN SAID RELAY CONTACTS ARE OPEN, MEANS CONNECTING SAID RELAY CONTROL CIRCUIT BETWEEN THE COIL OF SAID RELAY AND SAID VOLTAGE SOURCE, SAID CONTROL CIRCUIT CAUSING ENERGIZATION OF SAID RELAY COIL WHEN SAID SWITCHING MEANS IS CLOSED AND SAID ELECTRODE IS IN CONTACT WITH SAID TISSUE.