Implantable distraction device
AssigneeNuVasive, Inc.
InventorÉric Chevalier
Life of this patent
Estimating the term…
Abstract
The present invention relates to an implantable bone distraction device (1) for distracting osteotomically separated bone sections (2, 2′), said implantable distraction device (1) comprising a first block (3), a second block (3′), and an actuator (4) including means for adjusting the space between the two blocks, enabling distraction between the first bone section (2) and the second bone section (2′). The implantable bone distraction device (1) further comprises at least one vibration sensor (6) arranged in an area located between the first block (3) and the second block (3′) and oriented in order to measure a vibration response of a medium comprising the implantable bone distraction device (1).
Claims18
An implantable bone distraction device for distracting osteotomically separated bone sections, said implantable distraction device comprising:
- a first block for implantation and attachment to a first bone section, said first block defining a first chamber bore;
- a second block for implantation and attachment to a second bone section separated from the first bone section by an osteotomy, said second block defining a second chamber bore;
- an actuator including means for adjusting the space between the first block and the second block when activated, enabling distraction between the first bone section and the second bone section;
- at least one vibration sensor arranged in an area located between the first block and the second block and oriented in order to measure a vibration response of a medium comprising the implantable bone distraction device.
A medical monitoring device comprising:
- a receiver for receiving data from an implantable bone distraction device implanted and attached between two bone sections of the same bone, corresponding to a mechanical vibration response of a medium comprising the implantable bone distraction device, as measured by at least one vibration sensor;
- a calculator for computing, from the data received by the receiver, a distraction indicator through at least the steps of:
- determining at least one vibration pattern of said medium from the mechanical vibration response measured by the at least one vibration sensor;
- analyzing an evolution of a first value of the at least one vibration pattern of said medium determined from the measured vibration response during a first period;
- analyzing an evolution of a second value of the at least one vibration pattern of said medium determined from the measured vibration response during a second period;
- performing a comparison between the first value and the second value;
- and
- generating the distraction indicator as a function of the comparison.
Dependencies are inferred from the claim text.