Conformable therapeutic shield for vision and pain
First Claim
1. A covering for an eye of a patient, the eye comprising a cornea, an epithelial defect, and an epithelium, the covering comprising:
- an inner portion comprising an inner rigidity and an inner modulus, wherein the inner rigidity is characterized by a relative rigidity within a range from about 1×
10−
4 Pa-m3 to about 5×
10−
3 Pa-m3 and the inner modulus is within a range from 1 MPa to 35 MPa; and
an outer portion comprising an outer rigidity;
wherein the rigidity of the inner portion is greater than the rigidity of the outer portion;
wherein, when applied to an eye of a patient the outer portion of the covering at least partially conforms to the cornea, and wherein the inner portion provides a chamber between a posterior surface of the inner portion and the cornea in a region of the epithelial defect.
4 Assignments
0 Petitions
Accused Products
Abstract
A conformable covering comprises an outer portion with rigidity to resist movement on the cornea and an inner portion to contact the cornea and provide an environment for epithelial regeneration. The inner portion of the covering can be configured in many ways so as to conform at least partially to an ablated stromal surface so as to correct vision. The conformable inner portion may have at least some rigidity so as to smooth the epithelium such that the epithelium regenerates rapidly and is guided with the covering so as to form a smooth layer for vision. The inner portion may comprise an amount of rigidity within a range from about 1×10−4 Pa*m3 to about 5×10−4 Pa*m3 so as to deflect and conform at least partially to the ablated cornea and smooth an inner portion of the ablation with an amount of pressure when deflected.
246 Citations
18 Claims
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1. A covering for an eye of a patient, the eye comprising a cornea, an epithelial defect, and an epithelium, the covering comprising:
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an inner portion comprising an inner rigidity and an inner modulus, wherein the inner rigidity is characterized by a relative rigidity within a range from about 1×
10−
4 Pa-m3 to about 5×
10−
3 Pa-m3 and the inner modulus is within a range from 1 MPa to 35 MPa; andan outer portion comprising an outer rigidity; wherein the rigidity of the inner portion is greater than the rigidity of the outer portion; wherein, when applied to an eye of a patient the outer portion of the covering at least partially conforms to the cornea, and wherein the inner portion provides a chamber between a posterior surface of the inner portion and the cornea in a region of the epithelial defect. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A covering to treat an eye of a patient, the eye comprising a cornea and the covering comprising:
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a curved body to fit the eye, the body having an inner portion characterized by a modulus within a range from about 4 MPa (Mega Pascal) to about 20 MPa, a relative rigidity within a range from about 1×
10−
4 Pa-m3 to about 5×
10−
3 Pa-m3, and the inner modulus is within a range from 1 MPa to 35 MPa; andwhen applied to an eye of a patient provides a chamber between a posterior surface of the inner portion and the cornea in a region of an epithelial defect.
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17. A covering to treat an eye of a patient, the eye comprising a cornea and the covering comprising:
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a curved body to fit the eye, the body comprising an inner portion and an outer portion, the inner portion having a relative rigidity within a range from 1×
10−
4 Pa-m3 to 5×
10−
4 Pa-m3 and an inner modulus is within a range from 1 MPa to 35 MPa, the outer portion having a relative rigidity less than the relative rigidity of the inner portion; andwhen applied to an eye of a patient the outer portion of the covering provides a chamber between the inner portion and an epithelial defect of the cornea when the covering is positioned on the cornea. - View Dependent Claims (18)
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Specification