×

Test element with a one layer reaction film

  • US 7,629,175 B2
  • Filed: 02/18/2005
  • Issued: 12/08/2009
  • Est. Priority Date: 02/18/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. A test element for the optical detection of an analyte comprising:

  • a support having at least one transparent portion, anda one-layer film positioned on the support, the film comprising a reagent for the reflection photometric detection of the analyte and pigment particles, the film having a thickness when dry about 10 μ

    m or less, wherein the test element comprises only one functional layer, and wherein the film comprises a mixture of fine-grained pigment particles having an average diameter of less than 0.5 μ

    m with medium and/or coarse-grained particles, the average diameter of medium grain particles being between about 0.7 μ

    m and about 4 μ

    m and the average diameter of coarse-grained particles being between about 4 μ

    m and about 8 μ

    m.

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