AB externo intraocular shunt placement
Placing an intraocular shunt ab externo into an eye can include inserting the shunt into the eye and either before and/or after insertion, ballooning a target outflow region of the eye to permit an outflow end of the shunt to be enveloped within the ballooned target outflow region. An injector docking device can optionally be used to guide insertion of the needle and shunt into the eye.
1. An injector docking device for placing an intraocular shunt into an eye, the injector docking device comprising:
a body comprising an elongate eye-contacting component having a pair of prongs comprising at least one eye-contacting portion, the pair of prongs having proximal ends spaced apart by a gap and separate distal ends; and
a needle support component coupled to the proximal ends of the pair of prongs, the needle support component comprising a needle port extending to the gap of the pair of prongs, the needle port defining a needle axis extending in a direction of the at least one eye-contacting portion, wherein the distal ends of the pair of prongs diverge to increase a size of the gap in a direction away from the needle support component.
2. The injector docking device of claim 1 , wherein the needle support component comprises a shaft having the needle port extending therethrough, the needle port comprising a lumen within the shaft.
3. The injector docking device of claim 1 , wherein the eye-contacting portion comprises an adhesion component for coupling the injector docking device to the eye.
4. The injector docking device of claim 3 , wherein the adhesion component comprises a plurality of spikes.
5. The injector docking device of claim 1 , wherein the eye-contacting portion comprises an arcuate eye-contacting surface for alignment of the injector docking device relative to an indicium of the eye and alignment of the needle axis to the eye.
6. The injector docking device of claim 1 , wherein each of the pair of prongs taper toward a tip portion configured to contact the eye.
7. The injector docking device of claim 1 , comprising a bleb pocket adjacent to the needle port, the bleb pocket comprising a concavity extending into the body from the eye-contacting component toward an upper portion of the body.
8. A device for placing an intraocular shunt into an eye, the device comprising:
an injector docking device comprising: an annular eye-contacting component having a gap; and a needle support component coupled to the annular eye-contacting component, the needle support component comprising a needle port adjacent to the gap, the needle port defining a needle axis extending through the gap toward the annular eye-contacting component; and
an inserter comprising a sleeve positionable within the needle port so that an outer surface of the sleeve is opposite to an inner surface of the needle port, wherein the sleeve is configured to move relative to the injector docking device along the needle axis.
9. The injector docking device of claim 8 , comprising a bleb pocket adjacent to the needle port, the bleb pocket comprising a concavity extending away from the eye-contacting component.
10. The device of claim 8 , wherein the needle port comprising a lumen extending through the needle support component.
11. The device of claim 8 , wherein the sleeve and the injector docking device are rotatable relative to each other around the needle axis.
12. The device of claim 8 , wherein the sleeve and the injector docking device comprise a cross-sectional profile that is transverse relative to the needle axis, and wherein the cross-sectional profile of the sleeve and the injector docking device are configured to resist rotation relative to each other around the needle axis.
13. The device of claim 12 , wherein cross-sectional profile of any of the sleeve and the injector docking device comprises a polygonal shape configured to resist rotation of the sleeve and the injector docking relative to each other.
14. The device of claim 12 , wherein any of the sleeve and the injector docking device comprise a ridge or a groove configured to mate with the other of the sleeve and the injector docking device.
15. An injector docking device for placing an intraocular shunt into an eye, the injector docking device comprising:
an elongate eye-contacting component having a pair of prongs comprising at least one eye-contacting portion, the pair of prongs having proximal ends spaced apart by a gap and distal end portions that each comprise an angled eye-contacting surface;
a needle support component coupled to the proximal ends of the pair of prongs, the needle support component comprising a needle port extending to the gap of the pair of prongs, the needle port defining a needle axis extending in a direction of the at least one eye-contacting portion; and
a bleb pocket adjacent to the needle port, the bleb pocket comprising a concavity extending away from the eye-contacting component.
16. The injector docking device of claim 15 , wherein the needle port comprising a lumen extending through the needle support component.
17. The injector docking device of claim 15 , wherein each of the pair of prongs taper toward a tip portion configured to contact the eye.
18. The injector docking device of claim 15 , wherein the distal end portions of the pair of prongs diverge to increase a size of the gap in a direction away from the needle support component.