Patent · US Expired

Centrating haptics

US5133749A · kind A · utility

89Cited by
6References
4Claims
0Family size

Inventor

Key dates

Filing dateMay 13, 1991
Grant dateJul 28, 1992
Priority date—
Expiry dateMay 13, 2011

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61F2002/1683
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

An intra-ocular lens for implanting into the posterior capsule after cataract extraction, has a pair of sinuous haptics having greater flexibility near their roots than at their distal ends. A long arcuate distal segment of each haptic espouses the internal radius of the posterior capsule over an arc of at least 15 degrees. Both haptics have a slight backward slant. The haptics facilitate the implantation and retention of the lens.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.