Prosthetic capsular devices, systems, and methods

摘要

A prosthetic capsular device configured to be inserted in an eye includes a housing structure and a ring structure. The housing structure includes a first side, a second side opposite the first side, a third side, a fourth side opposite the third side, a posterior side including a refractive surface, an anterior side opposite the posterior side, and a longitudinal axis. The first side, the second side, the third side, the fourth side, the posterior side, and the anterior side at least partially define a cavity configured to contain an intraocular device (e.g., an IOL). The anterior side includes an opening. The ring structure includes a ring structure portion extending radially outward from proximate one of an end of the first side and an end of the second side.

主权项

1. A prosthetic capsular device for insertion into a natural capsular bag of an eye after removal of a cataract, the device comprising:
a housing structure capable of containing an intraocular lens (IOL), the housing structure comprising a first material, the housing structure including:
a first flat lateral side, the first flat side including:
a first end, anda second end;a second flat lateral side opposite the first flat side, the second flat side including:
a first end, anda second end;a third arcuate lateral side extending between the first end of the first flat side and the first end of the second flat side;a fourth arcuate lateral side extending between the second end of the first flat side and the second end of the second flat side, the fourth arcuate side opposite the third arcuate side;a posterior side including:
a refractive surface, anda posterior fin;an anterior side opposite the posterior side, the anterior side including:
an opening configured to allow insertion of an intraocular lens, anda round lip around the opening; anda longitudinal axis,wherein the housing structure is fully enclosed all around except at said opening, the first flat lateral side, the second flat lateral side, the third arcuate lateral side, the fourth arcuate lateral side, the posterior side, and the anterior side at least partially defining a cavity, the cavity of the housing structure capable of containing an intraocular lens; and a ring structure comprising a second material different than the first material, the ring structure transverse to the longitudinal axis and at a position along the longitudinal axis, the ring structure including:
a first ring structure portion extending from proximate to the first end of the first flat side radially outward and towards the second end of the first flat side, the first ring structure portion anchored in the first flat side and the third arcuate side, the first ring structure portion comprising a capsular bag-contacting surface;a second ring structure portion extending from proximate to the second end of the first flat side radially outward and towards the first end of the first flat side, the second ring structure portion anchored in the first flat side and the fourth arcuate side, the second ring structure portion comprising a capsular bag-contacting surface;a third ring structure portion extending from proximate to the first end of the second flat side radially outward and towards the second end of the second flat side, the third ring structure portion anchored in the second flat side and the third arcuate side, the third ring structure portion comprising a capsular bag-contacting surface; anda fourth ring structure portion extending from proximate to the second end of the second flat side radially outward and towards the first end of the second flat side, the fourth ring structure portion anchored in the second flat side and the fourth arcuate side, the fourth ring structure portion comprising a capsular bag-contacting surface, each of the first ring structure portion, the second ring structure portion, the third ring structure portion, and the fourth ring structure portion including an anterior-posterior opening proximate to a terminal end; the housing structure further comprising a bulge extending radially outward from anchor points of the ring structure, each of the first flat side, the second flat side, the third arcuate side, and the fourth arcuate side including:
a first portion extending parallel to the longitudinal axis from the posterior side towards the anterior side to at least the position of the ring structure along the longitudinal axis anda second portion extending radially inwardly from the first portion towards the lip of the anterior side.