Removal apparatus and method
US5830215A · kind A · utility
Inventors
Key dates
| Filing date | Jun 6, 1997 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Jun 6, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4619
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and method for removing a previously implanted component is disclosed. Generally, the novel device will be used in artificial hip revision surgery. The device comprises a stem, a handle member adapted on the first end of the stem, and a hemispherical cutting blade mounted on the second end of the stem. The hemispherical cutting blade is adapted for cutting an acetabular component from the patient. In the preferred embodiment, the hemispherical cutting blade comprises a first-half hemispherical blade and a second-half hemispherical blade. The blades are interchangeable so that different size acetabular components may be removed via the procedure herein described. The device also includes a contact point member configured on the second end of the stem member, with the contact point member adapted to contact the concave surface of the acetabular component. The apparatus may further include an advancing member, operatively associated with the stem, for advancing the first-half hemispherical blade and said second-half hemispherical blade about said acetabular component. In one embodiment, the advancing member comprises a collar slidably received about the stem. The collar i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.