Prosthetic Spinal Disk Nucleus

摘要

This specification describes technologies relating to an intervertebral disc prosthesis used to strengthen and stabilize the spine. Implementations of the technology described herein comprise a surgical device that is implanted through a small surgical incision into a portion of a human intervertebral disc, various support tools used to insert such a surgical device, and a method by which the device is used to strengthen and stabilize the spine.

主权项

1. An implantable prosthetic device comprising:
an inner chamber; an outer chamber fluidly isolated from the inner chamber; and a sealing valve in fluid communication with the inner chamber and the outer chamber, the sealing valve comprising a first sealing mechanism, a second sealing mechanism, and a stopper element; wherein when the sealing valve is in an open state, the first sealing mechanism allows the inflow of a first material into the inner chamber and the second sealing mechanism allows the inflow of a second material into the outer chamber; wherein when the sealing valve is in a closed state, the first sealing mechanism prevents outflow of the first material from within the inner chamber and the second sealing mechanism prevents outflow of the second material from within the outer chamber; wherein a force applied the stopper causes the sealing valve to enter the open state; and; wherein the release of the force causes the sealing valve to enter the closed state.