Evaluation of phacoemulsification devices
US-12150894-B2 · Nov 26, 2024 · US
Method of controlling a surgical system based on a load on the cutting tip of a handpiece
US9282989B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9282989-B2 |
| Application number | US-201213664606-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 31, 2012 |
| Priority date | Mar 22, 2004 |
| Publication date | Mar 15, 2016 |
| Grant date | Mar 15, 2016 |
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Abstract
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A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power to the tip to compensate for increased loads on the tip.
First claim
Opening claim text (preview).
What is claimed: 1. A method of controlling a surgical system, the surgical system having an ultrasound handpiece, the ultrasound handpiece having a cutting tip for cutting tissue, the method comprising the steps of: establishing a threshold power level; monitoring a load on the cutting tip of the ultrasound handpiece by monitoring a voltage and a current drawn by the handpiece during a non-zero sense power interval, the sense power interval being between cutting power intervals…
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Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
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- What does patent US9282989B2 cover?
- A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system…
- Who is the assignee on this patent?
- Novartis Ag
- What technology area does this patent fall under?
- Primary CPC classification A61F9/00745. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 15 2016 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).