Although broken up and sold off, HP's healthcare equipment arm has many used and refurbished items that are still reliable and are available on the aftermarket.
Philips Medical has bought the rights and technology for most previous HP Medical producst. For more information about the continuation of HP medical technology and equipment you can visit Philips Medical division at: http://www.medical.philips.com/main/products/
DRE, Inc. carries a wide variety of used and professionally refurbished HP equipment. Contact DRE for more info at: 1-800-462-8195