Zone extension systems and methods
US-9658468-B2 · May 23, 2017 · US
Automatically pulsing different aspiration levels to an ocular probe
US11266526B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11266526-B2 |
| Application number | US-201514967232-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 11, 2015 |
| Priority date | Nov 7, 2008 |
| Publication date | Mar 8, 2022 |
| Grant date | Mar 8, 2022 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
Methods and systems for automatically pulsing different aspiration levels to an ocular probe are disclosed. The probe may be a phacoemulsification probe. A first aspiration level, supplied by a first pump, may be applied to the probe simultaneously with ultrasonic energy. A second aspiration level, supplied by a second pump, may be automatically switched from the first aspiration level, and applied to the probe in a pulsed manner.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for applying aspiration to a phacoemulsification device, comprising: applying a first aspiration rate from a first pump to an aspiration port of a phacoemulsification device; periodically applying ultrasonic energy to the phacoemulsification device according to a predetermined duty cycle when the first aspiration rate from the first pump is applied; and automatically applying a second aspiration rate from a second pump to the aspiration port according to a predetermined operation cycle to draw particles toward the aspiration port, wherein the second aspiration rate is higher than the first aspiration rate and the ultrasonic energy is disabled when the second aspiration rate from the second pump is applied. 2. The method of claim 1 , wherein the first pump comprises a peristaltic pump and the second pump comprises a venturi pump. 3. The method of claim 1 , wherein a transitional aspiration rate between the first aspiration rate and the second aspiration rate is constantly increasing. 4. The method of claim 1 , additionally comprising detecting that the aspiration port is insufficiently occluded, and wherein the ultrasonic energy is not periodically applied according to the predetermined duty cycle when the aspiration port is insufficiently occluded. 5. The method of claim 4 , wherein detecting that the aspiration port is insufficiently occluded comprises detecting a flow-rate increase at the phacoemulsification device for a predetermined amount of time. 6. The method of claim 1 , additionally comprising detecting that the aspiration port is insufficiently occluded, and wherein the ultrasonic energy is periodically applied according to the predetermined duty cycle when the aspiration port is insufficiently occluded. 7. The method of claim 6 , wherein detecting that the aspiration port is insufficiently occluded comprises detecting a flow-rate increase at the phacoemulsification device for a predetermined amount of time.
Assignees
Inventors
Classifications
operating alternately · CPC title
Suction-irrigation systems (aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463) · CPC title
- A61F9/00745Primary
using mechanical vibrations, e.g. ultrasonic · CPC title
Suction control (underwater drainage A61M1/61) · CPC title
Pressure; Flow · CPC title
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Frequently asked questions
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- What does patent US11266526B2 cover?
- Methods and systems for automatically pulsing different aspiration levels to an ocular probe are disclosed. The probe may be a phacoemulsification probe. A first aspiration level, supplied by a first pump, may be applied to the probe simultaneously with ultrasonic energy. A second aspiration level, supplied by a second pump, may be automatically switched from the first aspiration level, and app…
- Who is the assignee on this patent?
- Johnson & Johnson Surgical Vision Inc
- 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 08 2022 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).