| 摘要 |
An apparatus and method for safely cannulating a retinal blood vessel is described. The apparatus consists of a micropipette/microcannula (9), micromanipulator (14) and positioner (15) mounted to a base (17), which is attached to a wrist rest commonly used in eye surgery. The micropipette/microcannula (9) is connected to tubing (11) such that a medication may be injected through the micropipette/microcannula (9) into the blood vessel or conversely, a small quantity of material may be removed from a blood vessel. Alternatively, a catheter, wire or stent (27) may be placed through the micropipette/microcannula (9) to treat or diagnose an area remote from the insertion site. The ability to cannulate a retinal blood vessel should be efficacious in the treatment of vein and artery occlusion, ocular tumors and other retinal, vascular and optic nerve disorders that would benefit from diagnosis and/or treatment. |
