Expandable parenchymal bolt with lever activation
US6080134A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1999 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Jan 8, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A low profile parenchymal bolt having a cap, a body, and a base with two rods located through the cap that the base. Levers are located at the cap and are interconnected with the rods. Moving the levers outwardly pulls the rods and base towards the cap compressing the body and causing its outer diameter to increase into contact with an opening in the skull of a patient to form a fluid-tight seal and fixing the bolt in position. A lumen permits mounting an instrument through the bolt and when the body is compressed, the lumen reduces in size thus clamping the instrument in place in the bolt and forming a fluid-tight seal. Through use of non-ferric materials, artifacts in MRI are reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.