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US 12,213,913 B2Granted
Medical implant
AssigneeAlcon Inc.
InventorsThomas A. Shepard, Tyler Pegoraro, Stuart Williams, Sanjib Kumar Das, Leo Anthony Trevino, Cheng Li
Life of this patent
Estimating the term…
Abstract
A medical implant is disclosed. The medical implant includes a body having a first end having a first cross-sectional dimension, a second end having a second cross-sectional dimension, and a tapered portion extending between the first end and the second end. The first cross-sectional dimension is larger than the second cross-sectional dimension. In some embodiments, the body comprises multiple layers.
Claims16
A layered composite containing a drug comprising:
- a substantially wedge shaped body having a width and a height;
- a tapered portion extending in a width direction between a first end and a second end, wherein the first end is configured to be initially retained in a cannula and the second end is configured to be inserted into an eye, wherein the first end has a first cross-section having a first cross-sectional dimension in a width direction and the second end has a second cross-section having a second cross-sectional dimension in the width direction, the first cross-sectional dimension being larger than the second cross-sectional dimension, wherein the tapered portion has a rectangular cross-section in the width direction, and wherein the height is substantially constant between the first end and the second end;
- a first layer comprising a first polymer;
- and a second layer comprising a first drug and a second polymer;
- wherein the first layer substantially covers the second layer and where a portion of the first layer defines a flat planar surface;
- wherein a retention force of the implant within the cannula is from about 0.030 N to about 0.260 N;
- and wherein a ratio of a diagonal dimension of the first cross-section, as a measured retention dimension, to an inside diameter of the cannula is between 1.0064 and 1.09 such that the body is configured to be inserted and removed from the cannula by a user for insertion of the body into an eye of a patient for medical treatment of the eye.
4 more elements
A layered composite containing a drug comprising:
- a substantially wedge shaped body having a width and a height;
- a tapered portion extending in a width direction between a first end and a second end, wherein the first end is configured to be initially retained in a cannula and the second end is configured to be inserted into an eye, wherein the first end has a first cross-section having a first cross-sectional dimension in a width direction and the second end has a second cross-section having a second cross-sectional dimension in the width direction, the first cross-sectional dimension being larger than the second cross-sectional dimension, and wherein the tapered portion has a rectangular cross-section in the width direction, and wherein the height is substantially constant between the first end and the second end;
- a first layer comprising a first polymer, where a portion of the first layer defines a flat planar surface;
- a second layer comprising a first drug and a second polymer;
- and a third layer, where the third layer surrounds the second layer and is press molded directly to the flat planar surface, and wherein the first layer and third layer have the same composition;
- wherein a retention force of the implant within the cannula is from about 0.030 N to about 0.260 N;
- and wherein a ratio of a diagonal dimension of the first cross-section, as a measured retention dimension, to an inside diameter of the cannula is between 1.0064 and 1.09 such that the body is configured to be inserted and removed from the cannula by a user for insertion of the body into an eye of a patient for medical treatment of the eye.
4 more elements
Dependencies are inferred from the claim text.