Hydraulically-powered and hybrid hydraulic-pneumatic systems and methods for achieving magnetic resonance elastography
US10524688B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2015 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Oct 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56358
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods are described for inducing tissue vibration for magnetic resonance elastography is described. The system includes a hydraulic drive component that is mechanically linked to a pneumatic drive component. The pneumatic drive component is pneumatically linked to a passive pneumatic actuator component that is positionable on a patient proximate to a target tissue. Alternating linear movement of an actuator piston within the passive actuator component induces vibration of the target tissue. The frequency of the alternating linear movement of the actuator piston within the passive pneumatic actuator component is controlled by adjusting how fluid is pumped in the hydraulic drive component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.