Awls
US5855581A · kind A · utility
34Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1996 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | May 2, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0097
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An awl suitable for both opening up a bone canal and for sizing that bone canal so as to obviate the use of a Charnley awl and the use of 4 to 5 distal reamers comprises (a) a tapered distal cutting head having a pointed first end, and a second end; and (b) a shaft attached to the second end, such that the shaft has a multiplicity of grooves calibrated so as to indicate the diameter of the isthmus of the bone canal. Also provided is a method of opening up a bone canal and of measuring the diameter of the isthmus of the bone canal with a single instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.