Abstract: A device for holding and protecting delicate instruments, such as microsurgical instruments, such as microsurgical instruments, is described. The device to protect delicate features of instruments from damage during shipping, storage, or other forms of handling. The device includes a base or stage on which spacing means and first and second securing means are provided.

Abstract: Fluid coupling devices are disclosed for use in receptacles such as receptacles on surgical aspiration equipment for selectively connecting a fluid conduit in the receptacle with a flow passage formed through a coupling device. The coupling devices in accordance with the invention comprise a spindle member which is non-rotatably held in the receptacle and a body member rotatably mounted on the spindle member for movement between an open position in which communication is established between the flow conduit in the receptacle and the flow passage in the coupling device, and a closed position disconnecting the conduit from the flow passage. The body member has a cam insert member with a through bore for connecting the flow conduit with the flow passage.

Abstract: A hand-held cannula assembly for irrigating and aspirating ophthalmic surgical sites includes an irrigation cannula circumscribed about an aspiration cannula and extending out through the forward end of the assembly from a reservoir for the irrigation fluid in the handle. Pressurized irrigation fluid is supplied to the reservoir through the rearward end of the handle and flows through openings in the irrigation cannula periphery into an annular flow passage between the two cannulas. An opening in the irrigation cannula issues the irrigation fluid at the surgical site. Aspiration fluid is drawn into the aspiration cannula which extends through the handle interior to an outflow opening at the rearward handle end.

Abstract: A surgical knife includes a blade secured to the knife body and having a cutting edge projecting transversely beyond the body profile. A slotted ski member is movable axially relative to the cutting edge to selectively expose the cutting edge by means of plural thread segments which cooperate to convert rotary motion to said axially controlled axial motion. The position of the ski and blade beyond the body profile enhances visibility of the incision. In the preferred embodiment, the ski is part of a shaft which is threadedly received in a spindle, which, in turn, is threadedly received in the same sense within the knife body. The ski shaft is procluded from rotary motion relative to the knife body and its threads have a greater pitch than the body threads; consequently, axial displacement of the spindle in one direction produces axial displacement of the ski in the opposite direction.