Ophthalmic marking device

摘要

An ophthalmic marker having a U-shaped yoke (33) at one end of a cranked axle (42) is disclosed. The axle (42) is rotatable mounted with a co-axial cylindrical handle (31). The other end of the axle extends beyond the handle and is bifurcated. A plumb bob (38) having a sphere (40) and a stem (39) is pivotally mounted on the bifurcated end of the axle (42). The yoke (33) has three marker points (34-36) the upper two (35, 36) of which are maintained in a horizontal plane by a gravitational force urging the plumb bob (38) into a vertical plane notwithstanding the handle (31) not being held exactly horizontal. A method of eye marking and marker making are also disclosed.

主权项

1. An ophthalmic marker for marking a patient's eyeball prior to intraocular surgery, said marker comprising:
a central longitudinal axle defining a longitudinal axis, said axle being contained within, and rotatable relative to, an elongate substantially co-axial and substantially cylindrical body constituting a handle able to be grasped in the manner of a pencil, wherein one end of said axle extends beyond said body and terminates in an optical marker and the other end of said axle extends beyond said body and terminates in a plumb bob to apply a gravitational torque thereto, and wherein said plumb bob is pivotably connected to said axle and moveable in only a single plane relative thereto.