The Lions Eye Institute of Western Australia, Inc.

The Lions Eye Institute Limited

Dao-Yi Yu

Ian J Constable

Stephen John Cringle

William Morgan

William Huxley Morgan

A method and apparatus for determining intracranial pressure includes a contact lens; a camera for making a plurality of images of at least one eye of a subject; one or more force transducers for controllably applying a force to the eye via the contact lens; a support system for supporting the camera, the contact lens and the one or more force transducers against the eye; and a computing device for controlling the force applied to the eye by the force transducers and stabilizing the force by negative feedback.

Method and system for determining intracranial pressure

The present invention provides a microfistula tube including a soluble duct, defining a drainage canal having an inner surface, the duct being biocompatible, wherein the microfistula tube is coated with and/or incorporates biological for forming a basement membrane, or an intracellular matrix and a basement membrane. The biological cells may coat the inner surface of the drainage canal, and the microfistula tube may be made of a mouldable material or an absorbable material. The invention also provides an implantation system for the microfistula tube including a microfistula tube and a surgical instrument including an outer tube for penetrating body tissue, an inner tube, and an innermost rod, wherein the outer tube, the inner tube and the innermost rod are coaxial, the outer tube is adapted to receive said microfistula tube, whereby the inner tube may be used to push the microfistula tube into position and the innermost rod provides mechanical support during implantation of the microfistula tube.

Biological microfistula tube and implantation method and apparatus

A system (,) for ocular ultramicrosurgery a ring (,) for immobilising eye (,) of a patient. The incision point (P) on the eye (,) for surgical tools is marked by a marker (,) that is generated by intersecting tire beams of lasers (,and,). The intersection point of the laser beams is fixed in space. In order to move the patient's eye (,) so that point (P) coincides with that fixed point in space, the patient's head (,) is fixed to a head positioner (,). The head positioner is operated by a surgeon (,) through joystick (,) and computer (,) to ensure registration of point (P) and the point designated by the intersecting laser beams. All surgical tools used in the system (,) are supported, positioned and operated or worked by a tool support and positioning system (,). The system (,) comprises a stereotactic manipulator (,) and a tool translation table (,) which is supported on the manipulator (,). The manipulator (,) is used to position a surgical tool (,) on table (,) so that tip (,) of the tool (,) can be aligned with point (P). Thereafter, the manipulator (,) and/or table (,) can separately or in combination be used to pivot the tool (,) about point (A) so that the tip (,) of the tool is positioned at any desired location within the eye and subsequently worked or operated to perform ultramicrosurgery. Surgeon (,) is able to control the manipulator (,) and table (,) via computer (,) and input devices such as joysticks (,) and keyboard (,). In this way, the surgeon's hands are isolated from the movement of the tool (,).

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Nedlands, Australia

Dao-Yi Yu