Shares of some top health care equipment companies are up at 10 a.m.:
Becton Dickinson rose $2.57 or 3.5 percent, to $76.23.
Covidien rose $1.72 or 3.9 percent, to $45.41.
Millipore rose $.32 or .3 percent, to $106.13.
Patterson rose $1.07 or 3.6 percent, to $30.57.
PerkinElmer rose $1.03 or 4.6 percent, to $23.26.
Thermo Fisher rose $2.09 or 4.1 percent, to $53.50.
Varian Medical rose $2.11 or 4.1 percent, to $53.04.
Waters rose $3.51 or 5.3 percent, to $69.62.