Lianyungang Tiannuo Optical Instrument Co., Ltd. TC-1 TIANNUO / TNMED

A lens chip having an optical lens and a pinhole disc with multiple apertures.

A lens clip having an optical lens and a pinhole disc with multiple apertures, each surrounded by an opaque halo.

An individual ophthalmic lens from a trial lens set having multiple pinholes separate by clear plastic.

THE VYCOR VIEWSITE BRAIN ACCESS SYSTEM (VBAS) is a family of retractor and brain access devices of varying shapes and sizes designed for providing diagnostic and surgical access to various portions of the brain and spine. It has been designed to serve as a self-retaining retractor system for brain tissue. It is comprised of an introducer and a working channel or port that are secured by a spring-loaded latch. Each device allows for the gentle retraction of tissue, visualization of the surgical site and for the smooth manipulation of introduced instruments. The range of device sizes (width and length) provides various working channel sizes.

A hand-operated, non-powered ophthalmic device intended to temporarily prevent and/or attenuate the passage of light (vision) to the eye(s) during an eyesight examination (e.g., diagnosis/measurement of heterophoria/heterotropia, myopia). The part of the device used to cover the eye(s) is typically spoon- or oval-shaped, and may be fully opaque or incorporate small holes and/or a Maddox lens(es) [i.e., coloured lens(es)]; the device also incorporates a handle and/or binocular frame. This is a reusable device.

A lens chip having an optical lens and a pinhole disc with multiple apertures.

A lens clip having an optical lens and a pinhole disc with multiple apertures, each surrounded by an opaque halo.

An individual ophthalmic lens from a trial lens set having multiple pinholes separate by clear plastic.

THE VYCOR VIEWSITE BRAIN ACCESS SYSTEM (VBAS) is a family of retractor and brain access devices of varying shapes and sizes designed for providing diagnostic and surgical access to various portions of the brain and spine. It has been designed to serve as a self-retaining retractor system for brain tissue. It is comprised of an introducer and a working channel or port that are secured by a spring-loaded latch. Each device allows for the gentle retraction of tissue, visualization of the surgical site and for the smooth manipulation of introduced instruments. The range of device sizes (width and length) provides various working channel sizes.