Surgical saw blade
US5423845A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1994 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Mar 10, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/935
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blade for a surgical saw has an elongate body with distal and proximal ends, and a plurality of teeth formed on an outwardly facing edge surface of the distal end. The spaces between adjacent teeth are defined by surfaces which lie in planes which are non-perpendicular to the substantially flat surfaces which define the body of the blade. These non-perpendicular surfaces guide cuttings generated by the teeth laterally toward the flat surfaces of the blade and outwardly toward the proximal end of the blade as the blade advances in a cut. Each of the teeth formed on the edge of the blade has a pointed form. Approximately half of the teeth lie in a row in which the respective points lie in a first cutting plane which extends in parallel with, and lies adjacent a first side of, a plane which extends longitudinally through the center of the blade body. The remaining teeth have points which lie in a second row in a second cutting plane which extends in parallel with, and lies adjacent a second side of, the plane which extends longitudinally through the blade body. The teeth have triangular cross-sections and are formed on alternatingly intersecting angled surfaces formed on the distal …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.