Thermal cautery system

Surgery – Truss – Pad

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

219229, 219241, 219501, A61B 1736

Patent

active

046917039

ABSTRACT:
A thermal cautery system having an endoscopically deliverable probe connected to a power supply and display unit. The power supply and display unit, when triggered by a footswitch, energizes a voltage regulator having a current limited output that supplies power to the probe. The current limiting function of the voltage regulator is disabled for a predetermined period that power is initially applied to said probe to minimize the heating time of said probe. The current through said probe is sensed and used to increase the voltage at the output of the voltage regulator as the current increases to compensate for the voltage drop in the conductors connecting the probe to the power supply. A manually selected portion of the sensed current through the probe is also integrated and used to terminate the flow of current through the probe when the integral of the current with respect to time has reached a predetermined value. A tone generator provides an audible indication when power is being applied to the probe and for a predetermined period thereafter to allow the probe to cool before the absence of the tone signals the removal of the probe from tissue being coagulated. The probe is heated by current flowing through an internal diode having a predetermined breakdown voltage at a predetermined temperature. The temperature of the probe is self-regulated by applying a voltage to the probe that is substantially equal to said predetermined voltage so that the current through the probe is reduced at said predetermined temperature.

REFERENCES:
patent: 3358152 (1967-12-01), Alexakis
patent: 4301357 (1981-11-01), Huffman
patent: 4449528 (1984-05-01), Auth et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Thermal cautery system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal cautery system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal cautery system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2152947

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.