Abstract: An intra-ocular lens having an air-filled collapsible cavity situated between two optical elements wherein air is transferred from optical regions of the collapsible cavity to its peripheral haptic regions after being compressed by external force.

Abstract: An intra-ocular lens having an air-filled collapsible cavity situated between two optical elements wherein air is transferred from optical regions of the collapsible cavity to its peripheral haptic regions after being compressed by external force.

Abstract: The invention provides for an inflatable intra ocular lens/lens retainer or a system of inflatable intra ocular lens/lens retainers, which are fitted into an aphakic eye, to substantially occupy the space previously held by the crystalline lens to retain and secure the position of delicate intra ocular structures of the eye. The inflatable lens/lens retainer may also be used suspend optical interfaces along the visual axis of the eye. The inflatable intra ocular lens/lens retainer may be pressed against residual elements of the lens capsule to re-establish accommodation. In the absence of a lens capsule, the inflatable intra ocular lens/lens retainer may be compressed directly by the ciliary muscle to alter the refractive state of the eye.

Abstract: An intra-ocular lens having an air-filled collapsible cavity situated between two optical elements wherein air is transferred from optical regions of the collapsible cavity to its peripheral haptic regions after being compressed by external force.

Abstract: A suspension system for suspending an intra-ocular lens in the lens capsule of an eye has one or more collapsible cavities formed in the suspension system, each having at least one opening communicating the interior of the cavity with fluid from the interior of the eye, wherein the walls of the cavity exhibit sufficient structural elasticity that they return to their habitual shapes after being compressed by external force.

Abstract: A suspension system for suspending an intra-ocular lens in the lens capsule of an eye has one or more collapsible cavities formed in the suspension system, each having at least one opening communicating the interior of the cavity with fluid from the interior of the eye, wherein the walls of the cavity exhibit sufficient structural elasticity that they return to their habitual shapes after being compressed by external force.

Abstract: A disinfectant cap for hypodermic needles includes a chamber that houses a liquid absorptive element that contains a biocide. The liquid absorptive element is fitted within the chamber to receive the dispensing tip of a hypodermic needle such that the needle tip penetrates the liquid absorptive material thereby imparting sustained antimicrobial action upon outer and inner regions of the hypodermic needle when the protective cap is secured in its closed configuration, and also to the interior of the syringe. The disinfectant cap is constructed such that the liquid absorptive element is retained within the chamber when the hypodermic needle is removed.

Abstract: An adaptive lens system comprises i) a lens compartment with a transparent cover; ii) a deformable transparent optical element mounted in the lens compartment which forms a sealed upper chamber in the lens compartment between the transparent cover and the upper surface of the optical element, and also defining a lower region external to the lower surface of the optical element; iii) a first transparent fluid medium in the upper chamber and a second transparent fluid medium in the lower region, the first and second fluid media having different refractive indices; iv) a structural element located in and movable in the upper chamber relative to the deformable optical element to mechanically engage the deformable optical element to thereby alter the curvature of the deformable optical element, thereby altering the refractive power or the prismatic effect of the adaptive lens system.

Abstract: The invention provides for an inflatable intra ocular lens/lens retainer or a system of inflatable intra ocular lens/lens retainers, which are fitted into an aphakic eye, to substantially occupy the space previously held by the crystalline lens to retain and secure the position of delicate intra ocular structures of the eye. The inflatable lens/lens retainer may also be used suspend optical interfaces along the visual axis of the eye. The inflatable intra ocular lens/lens retainer may be pressed against residual elements of the lens capsule to re-establish accommodation. In the absence of a lens capsule, the inflatable intra ocular lens/lens retainer may be compressed directly by the ciliary muscle to alter the refractive state of the eye.

Abstract: The invention provides for an inflatable intra ocular lens/lens retainer or a system of inflatable intra ocular lens/lens retainers, which are fitted into an aphakic eye, to substantially occupy the space previously held by the crystalline lens to retain and secure the position of delicate intra ocular structures of the eye. The inflatable lens/lens retainer may also be used suspend optical interfaces along the visual axis of the eye. The inflatable intra ocular lens/lens retainer may be pressed against residual elements of the lens capsule to re-establish accommodation. In the absence of a lens capsule, the inflatable intra ocular lens/lens retainer may be compressed directly by the ciliary muscle to alter the refractive state of the eye.

Abstract: A disinfectant cap for sterile liquid dispensers is disclosed. The cap includes a biocide-containing reservoir separated from the hollow interior of the cap by a rigid partition having an aperture therein for receiving the outlet port of the dispensing end of the dispenser, the cap being configured such that when in a closed configuration, the outlet port of the dispensing end extends through the aperture into the biocide-containing reservoir and the rigid partition is configured such that when the cap is removed from the dispensing end the biocide is retained in the reservoir. This may be achieved by selecting the size of the aperture such that when the cap is removed from the dispensing end the biocide is retained in the reservoir by surface tension. Or the partition may be provided with a hinged flap which seals the aperture when the cap is removed from the dispensing end and which is moved away from the aperture when the outlet port extends through the aperture.

Abstract: The invention provides for an inflatable intra ocular lens/lens retainer or a system of inflatable intra ocular lens/lens retainers, which are fitted into an aphakic eye, to substantially occupy the space previously held by the crystalline lens to retain and secure the position of delicate intra ocular structures of the eye. The inflatable lens/lens retainer may also be used suspend optical interfaces along the visual axis of the eye. The inflatable intra ocular lens/lens retainer may be pressed against residual elements of the lens capsule to re-establish accommodation. In the absence of a lens capsule, the inflatable intra ocular lens/lens retainer may be compressed directly by the ciliary muscle to alter the refractive state of the eye.

Abstract: A pressurized dispenser for dispensing sterile liquids in droplets having a flexible nozzle with flexible dispensing tip is provided. The tip has an opening which is normally sealed around a central plug. The dispenser is inverted and by pressing the side of the flexible nozzle a valve releases pressurized liquid into the space between the central plug and the dispensing tip which causes the tip to expand and release droplets.

Abstract: A disinfectant cap for sterile liquid dispensers is disclosed. The cap includes a biocide-containing reservoir separated from the hollow interior of the cap by a rigid partition having an aperture therein for receiving the outlet port of the dispensing end of the dispenser, the cap being configured such that when in a closed configuration, the outlet port of the dispensing end extends through the aperture into the biocide-containing reservoir and the rigid partition is configured such that when the cap is removed from the dispensing end the biocide is retained in the reservoir. This may be achieved by selecting the size of the aperture such that when the cap is removed from the dispensing end the biocide is retained in the reservoir by surface tension. Or the partition may be provided with a hinged flap which seals the aperture when the cap is removed from the dispensing end and which is moved away from the aperture when the outlet port extends through the aperture.

Abstract: A disinfectant cap for sterile liquid dispensers is disclosed. The cap for a dispenser for sterile liquid has a hollow container for storing the sterile liquid and a dispensing end having an outlet port, wherein the cap comprises a biocide-retaining element secured to the inner surface of the cap and is configured to contact the outlet port of the dispenser when in the closed position.

Abstract: In existing vaporizers the medication passes through unsterilized passages which preclude heir use to administer sterile medications. The present invention therefore provides a device for dispensing a vaporized spray of sterile medicated liquid. It uses a combination atomizing and pressure release valve in which there is a flexible membrane with an aperture, and a plug extending upwardly through the aperture and having a surface against which the membrane is biassed in the closed position, the membrane lifting off the surface of the plug in the open position to thereby open the aperture.

Abstract: In existing vaporizers the medication passes through unsterilized passages which preclude heir use to administer sterile medications. The present invention therefore provides a device for dispensing a vaporized spray of sterile medicated liquid. It uses a combination atomizing and pressure release valve in which there is a flexible membrane with an aperture, and a plug extending upwardly through the aperture and having a surface against which the membrane is biassed in the closed position, the membrane lifting off the surface of the plug in the open position to thereby open the aperture.

Abstract: Currently microfiltration devices use hydrophillic membranes to sterilize liquids. Air locks may develop on the upstream side of the filter membrane within these apparatus. The present invention provides a method and apparatus for removing an air lock from the upstream side of a microfilter in a device for dispensing a sterile liquid from a storage container by forcing the liquid through a microfilter.

Abstract: Currently microfiltration devices use hydrophillic membranes to sterilize liquids. Air locks may develop on the upstream side of the filter membrane within these apparatus. The present invention provides a method and apparatus for removing an air lock from the upstream side of a microfilter in a device for dispensing a sterile liquid from a storage container by forcing the liquid through a microfilter.

Abstract: A method and apparatus for removing an air lock from the upstream side of a microfilter in a device for dispensing a sterile liquid from a storage container by forcing the liquid through a microfilter. The device include a first inlet passageway communicating between the storage container and a chamber on the upstream side of the filter closable by a valve, and a second passageway communicating between the storage container and the upstream side of the filter closable by a second valve, and the method includes the steps of a) creating partial vacuum in the chamber on the upstream side of the microfilter to thereby open the first valve and draw the liquid from the storage container through the first passageway into the chamber, and into the contact with the upstream side of the filter, b) closing the first and second valves and increasing the air pressure in the chamber, and c) opening the second valve thereby releasing air under pressure from the chamber through the second passageway.