3840904

Information

• Patent Grant
• 3840904

• References
• Source

• Patent Number

  3,840,904

• Date Filed

  Not available

• Date Issued

  Tuesday, October 15, 1974
  50 years ago

• CPC

  • A61F2/34 - Acetabular cups
  • A61F2/30767 - Special external and/or bone-contacting surfaces
  • A61B17/86 - Threaded wires , pins or screws; Nuts therefor
  • A61F2002/30176 - V-shaped
  • A61F2002/30405 - made by screwing complementary threads machined on the parts themselves
  • A61F2002/30797 - internally-threaded
  • A61F2002/30841 - Sharp anchoring protrusions for impaction into the bone
  • A61F2002/30846 - circular
  • A61F2002/30848 - straight
  • A61F2002/30892 - parallel
  • A61F2002/3412 - with pins or protrusions
  • A61F2002/3422 - Circumferential ribs
  • A61F2002/3427 - Non-meridian ribs
  • A61F2002/3429 - with an integral peripheral collar or flange
  • A61F2002/3451 - with angular positioning means for selecting any one of a plurality of radial orientations between two concentric shells
  • A61F2002/4619 - for extraction
  • A61F2220/0025 - Connections or couplings between prosthetic parts
  • A61F2230/0054 - V-shaped
  • A61F2310/00011 - Metals or alloys

• US Classifications

  • 623 - Prosthesis