Package for hydrophilic contact lens

  • US 4,691,820 A
  • Filed: 12/11/1986
  • Issued: 09/08/1987
  • Est. Priority Date: 11/18/1985
  • Status: Expired due to Term
First Claim
Patent Images

1. A package for a hydrophilic contact lens maintained in a sterile aqueous solution comprising:

  • a molded base having a cavity for containing said contact lens and a flange extending outwardly about the periphery of said cavity,said cavity being defined by a bottom surface and side wall surfaces extending between said bottom surface and said flange,a portion of said side wall surface being inclined away from said bottom surface at an angle of from about 130 to 160 degrees, said inclined side wall surface forming a ramp between the bottom of the cavity and said flange, anda flexible cover sheet releasably sealed to said flange around the perimeter of said cavity, said cover sheet and said flange adjacent the edge of said inclined side wall surface extending outwardly to beyond the area of said seal,the unsealed edges of said cover sheet and said flange comprising gripping means for separating said cover sheet from said flange to expose said inclined side wall and said cavity;

    said package being impermeable to bacteria to preserve sterility,said package having negligible moisture vapor transmission rate to avoid loss of water; and

    ,said package being sterilizable.

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