CATARACT PHACOEMULSIFICATION TIP
First Claim
1. A phacoemulsification tip comprising:
- an exterior wall and an interior wall forming a tubular structure;
a lumen formed by the interior wall, comprising;
a first section with a first diameter;
a second section adjacent to the first section with a second diameter smaller than the first diameter; and
a third section adjacent to the second section with a third diameter smaller than the second diameter;
an opening into the lumen, adjacent to the third section, configured such that anatomical tissues from an eye of a patient may enter the lumen through the opening; and
a sharp edge positioned in the vicinity of the opening.
1 Assignment
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Accused Products
Abstract
A phacoemulsification or aspiration tip is designed for use in cataract surgeries. The phacoemulsification tip (also referred to as a phaco tip) can reduce the duration and energy of cataract surgeries because the phaco tip is designed to reduce the likelihood that cataract fragments will become clogged inside the phaco tip. For example, the phaco tip has a lumen with variable sized diameters, which helps filter out larger cataract fragments that are more likely to clog the phaco tip. Further, the phaco tip can have a larger diameter at a bend to prevent blockages. The opening of the phaco tip can have a sharp edge to shear cataract fragments into smaller pieces that are less likely to clog the phaco tip. By preventing blockages using the phaco tip and reducing the duration of cataract surgeries, patients may recover faster from the cataract surgeries.
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Citations
20 Claims
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1. A phacoemulsification tip comprising:
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an exterior wall and an interior wall forming a tubular structure; a lumen formed by the interior wall, comprising; a first section with a first diameter; a second section adjacent to the first section with a second diameter smaller than the first diameter; and a third section adjacent to the second section with a third diameter smaller than the second diameter; an opening into the lumen, adjacent to the third section, configured such that anatomical tissues from an eye of a patient may enter the lumen through the opening; and a sharp edge positioned in the vicinity of the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A phacoemulsification tip comprising:
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a lumen, comprising; a first section with a first diameter; a second section adjacent to the first section with a second diameter larger than the first diameter; and a third section adjacent to the second section with a third diameter smaller than the second diameter; and an opening into the lumen, adjacent to the third section, configured such that anatomical tissues from an eye of a patient may enter the lumen through the opening. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A phacoemulsification tip comprising:
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a lumen, comprising; a first section with a first diameter; a second section adjacent to the first section with a second diameter smaller than the first diameter; and a third section adjacent to the second section with a third diameter larger than the second diameter; and an opening into the lumen, adjacent to the third section, configured such that anatomical tissues from an eye of a patient may enter the lumen through the opening.
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Specification