Electrosurgical method

Patent metadata

Field	Value
Publication number	US-9265559-B2
Application number	US-3660508-A
Country	US
Kind code	B2
Filing date	Feb 25, 2008
Priority date	Feb 25, 2007
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

Methods are disclosed for delivering energy to a body of a human or animal during a treatment procedure using an electrosurgical generator, a pre-set overall procedure time being defined for the treatment procedure, a ramp time being defined for a parameter to reach a pre-set threshold during the treatment procedure, the method comprising: measuring the parameter over time; and if the parameter has not substantially reached the pre-set threshold by the ramp time, setting a procedure extension time responsive to the time difference between the ramp time and the time at which the pre-set threshold was reached, and extending the overall procedure time by the procedure extension time.

First claim

We claim:

1. A method for intra-procedurally assessing a likelihood of failure of a treatment procedure, the treatment procedure comprising delivering energy to a body of a human or animal using an electrosurgical generator, a treatment parameter being associated with the treatment procedure, the treatment parameter having a pre-set threshold associated with a successful treatment procedure, and a ramp time being defined for the treatment parameter to reach the pre-set threshold during the treatment procedure, the ramp time having a pre-set limit, the method comprising:
measuring the treatment parameter over time from a start of the delivering of energy and during a course of the treatment procedure; and
during the course of the treatment procedure, determining whether or not the treatment parameter will reach the pre-set threshold such that the treatment procedure is likely to be successful, by correlating the measured treatment parameter with the ramp time;
whereby a likelihood the treatment procedure will fail may be determined if the treatment parameter does not reach the pre-set threshold prior to the ramp time reaching the pre-set limit; and
after the delivering of the energy for the ramp time has ended, adjusting an overall procedure time when the treatment parameter does not reach the pre-set threshold prior to the ramp time.

2. The method of claim 1 , further comprising performing a function in response to the determining step if the treatment procedure is likely to fail.

3. The method of claim 2 , wherein the function is selected from the group consisting of stopping the delivery of energy, alerting a user and a combination thereof.

4. The method of claim 1 , wherein the correlation is performed when the ramp time has reached the pre-set limit.

5. The method of claim 1 , wherein the treatment parameter comprises a temperature and wherein the pre-set limit comprises a maximum ramp time.

6. The method of claim 5 , wherein correlating the temperature and the ramp time comprises assessing whether or not the temperature has substantially reached the preset threshold within the maximum ramp time.

Assignees

• Godara Neil
• Hillier Taylor
• Parker Matthew
• Lo Hua Xin
• Woo Jason
• Avent Inc

Inventors

• Godara Neil
• Hillier Taylor
• Parker Matthew
• Lo Hua Xin
• Woo Jason

Classifications

• A61B18/1206 Primary

  Generators therefor · CPC title

• A61B2018/00791

  Temperature · CPC title

• A61B2018/00702

  Power or energy · CPC title