Process for forming endoscopic shaver blade from elongate tube
US5676012A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1995 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Dec 5, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/32002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process of forming a one piece weld free endoscopic shaver blade from an elongate metal cylindrical tube includes first cutting the tube first distal end to a predefined opening shape. A mandrel is inserted into the longitudinal tube with its working end adjacent the tube distal end. The tube distal end is further supported and a first die is forced thereon in a direction generally perpendicular to the elongate tube and forming the tube end and defining a shaver blade opening. A second die is forced onto the tube first distal end in a direction generally parallel to the tube longitudinal further forming the tube end and shaver blade opening. The formed shaver blade opening is then machined or edgeformed as needed to a final shaver blade opening and perimeter shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.