Catheter for use in the surgical correction of a nasolacrimal duct obstruction
US5062831A · kind A · utility
8Cited by
9References
3Claims
0Family size
Inventor
Key dates
| Filing date | Apr 18, 1990 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Apr 18, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/00772
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter for use in the surgical correction of a nasolacrimal duct obstruction comprising an elongated shank portion having a enlarged portions at the upper and lower ends thereof. When the catheter is properly placed during the surgical procedure, the enlarged portions of the catheter prevent longitudinal displacement thereof and prevents the "scarring over" of the nasolacrimal duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.