×

UHF RFID wristband with a long read range

  • US 9,477,922 B2
  • Filed: 08/25/2011
  • Issued: 10/25/2016
  • Est. Priority Date: 09/01/2010
  • Status: Active Grant
First Claim
Patent Images

1. A radio frequency identification wristband for attaching to a patient, the radio frequency identification wristband comprising:

  • a band;

    a wristband housing attached to or integral with said band;

    two or more radio frequency identification battery-assisted-passive (BAP) tag inlays, wherein each radio frequency identification BAP tag inlay comprises a radio frequency identification tag integrated circuit and an antenna; and

    a polyolefin foam having a low dielectric constant, wherein the polyolefin foam comprises a dimpled surface and has a water absorption of less than or equal to 0.04 lbs/cut surface;

    wherein said wristband housing is adhered to at least one of the two or more radio frequency identification BAP tag inlays using a first adhesive,wherein at least one of the two or more radio frequency identification BAP tag inlays is adhered to said foam using a second adhesive, wherein the second adhesive is resistant to sterilization,wherein, when the radio frequency identification wristband is worn by a patient, said foam is nearer to the skin of the patient than any of the two or more radio frequency identification BAP tag inlays, and insulates at least one of the two or more radio frequency identification BAP tag inlays from the patient'"'"'s skin,wherein each of the two or more radio frequency identification BAP tag inlays is configured to communicate a different identifier than the other ones of the two or more radio frequency identification BAP tag inlays, andwherein the different identifiers have a fixed mathematical relationship to each other.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×