Method of confirming safe delivery pathway to patient prior to energy delivery
US-12076073-B2 · Sep 3, 2024 · US
Power level transitioning in a surgical instrument
US8932282B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8932282-B2 |
| Application number | US-53430809-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 3, 2009 |
| Priority date | Aug 3, 2009 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An electrosurgical system and method are disclosed. The system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The generator is further adapted to supply an electrosurgical signal at a variable power level. The generator includes sensor circuitry adapted to sense tissue impedance and/or an electrosurgical signal zero crossing. The generator also includes a controller, which may include a microprocessor, that is adapted to receive a tissue impedance signal and/or a waveform zero crossing signal. The controller is configured to monitor tissue impedance, and in response to a threshold value of impedance being reached, to cause a power level of the electrosurgical energy to transition from a first power level to a second power level. The slew rate of the power transition may be in accordance with a transition function, such as a cosine function. The power transition may additionally or alternatively be performed during, or correlated with, an electrosurgical signal zero crossing. The system also includes an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue for treatment.
First claim
Opening claim text (preview).
What is claimed is: 1. An electrosurgical system comprising: an electrosurgical generator adapted to supply electrosurgical energy to tissue at a power level responsive to a generator power level signal; sensor circuitry adapted to monitor tissue impedance and output an impedance signal in response thereto, the sensor circuitry further adapted to monitor a zero crossing of the electrosurgical energy and output a zero crossing signal in response thereto; a microprocessor operab…
Assignees
Inventors
Classifications
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
- A61B18/1206Primary
Human Necessities · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8932282B2 cover?
- An electrosurgical system and method are disclosed. The system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The generator is further adapted to supply an electrosurgical signal at a variable power level. The generator includes sensor circuitry adapted to sense tissue impedance and/or an electrosurgical signal zero crossing. The generator also include…
- Who is the assignee on this patent?
- Gilbert James A, Covidien Lp
- What technology area does this patent fall under?
- Primary CPC classification A61B18/1206. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).