Wide Angle Viewing Systems are needed to visualize the doughnut of fluid at the anterior edge of the PFCL bubble. Wide-angle viewing systems are used by ophthalmic surgeons that typically have a viewing angle requirement of greater than about 100.degree. in vivo.

Water Baths are a compact and reliable solution for the calibration of thermal sensors. These baths include bath cover, drain tap, carry handles and hole to hold a certified sensor. The bath is fully insulated on the sides & the base and has a cooling coil fitted for connection to a cold water supply for use around ambient.

A wheelchair is a wheeled movable device in which the user sits. The device is propelled either manually or via various automated systems. Wheelchairs are used by people for whom walking is difficult or impossible due to illness, injury, or disability. People with both sitting and walking disability often need to use a wheelbench.

Wet Spirometer measures lung volumes based on the simple mechanical principle that air exhaled from the lungs and cause displacement of a closed chamber that is partially submerged in water. The spirometer consists of two chambers like a larger chamber, which is filled with water and has a breathing hose attached to it and a smaller chamber, which is inverted inside the first and suspended in water.

Wound is a break in the skin. It is usually caused by cuts or scrapes. Different kinds of wounds may be treated differently from one another, depending upon how they happened and how serious they are.

Wound skin closure stacking rack and tray is a stacking rack for organizing and storing a variety of skin closure product styles and sizes.

Wound closure system contains skin closure and a transparent dressing. It is useful for post-endoscopic applications and other sites for additional protection against wetting and peeling.