Abstract
A cutting accessory (20) for use with powered surgical tools. The cutting accessory has a hub (28) for coupling the accessory to the output shaft of a handpiece. A drive shaft (26) formed of stainless steel or other relatively rigid material extends forward from the hub. A head (30) formed from nickel titanium alloy or other metal that is more flexible than the material forming the drive shaft is attached to the distal end of the drive shaft. The head is shaped to form the cutting edges of the cutting accessory. In some versions of the invention, intermediate sections (60) of the drive shaft are formed from the flexible metal or metal alloy.
Key facts
- Application
- 10/115,607Filed 3 Apr 2002
- Published
- US 2003/0191487 A19 Oct 2003
- Granted
- 30 Nov 2004
- Term ends
- Not estimatedThe source records don’t support an estimate.
Classification6 codes
- A61B 17/32002
Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes: with continuously rotating, oscillating or reciprocating cutting instruments
- A61B 17/1615
Component parts: drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
- A61B 17/1633
Component parts: sleeves, i.e. non-rotating parts surrounding the bit shaft, e.g. the sleeve forming a single unit with the bit shaft
- A61B 2017/00867
Material properties: shape memory effect
Family
- US 2003/0191487 A1Pre-grant publication · published 9 Oct 2003
- US 6,824,552 B2This patent
From the US filing history. Foreign family members aren’t listed.