Health Care Equipment companies shares down at 10 a.m.

Shares of some top health care equipment companies are down at 10 a.m.:

Becton, Dickinson & Co. fell $1.98 or 1.4 percent, to $141.61.

Patterson fell $.67 or 1.4 percent, to $48.12.

PerkinElmer fell $.95 or 1.9 percent, to $50.19.

Thermo Fisher Scientific Inc. fell $1.72 or 1.3 percent, to $132.62.

Varian Medical Systems Inc. fell $1.20 or 1.3 percent, to $92.89.

Waters fell $2.24 or 1.8 percent, to $122.08.