Precision spindle instrument holder for surgical instrument
US7955320B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2004 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Apr 27, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00477
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument holder (10) is made up of a head assembly (68) and a drive spindle assembly (42). The head assembly (68) has a shank (12) with a first driveable end (14) and second coupling end (16). The second end has a coupling device (20) having an interface (22) for receiving a surgical instrument (24). The instrument (24) is held in functional assembly to the shank by a releasable locking mechanism (26). The releasable locking mechanism (26) is made up of a locking ring (30) slideably disposed about the shank, a spring (32) biased against the coupling device (20) by the locking ring, and a connection ring (34) retaining the locking ring in a fixed position during use. The drive spindle assembly (42) is connected to the head assembly (68) so as to transmit torque therethrough. The spindle assembly (42) has an elongated drive spindle (40), high precision bearings (44, 120, 122) and a cylindrical tube (46). The drive spindle (40) is releasably mounted to an end (36) of the spindle assembly and is supported for rotation within the cylindrical tube (46) by the high-precision bearings disposed therebetween and held in place at least in part by the shank (12). The bearings (44)…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.