摘要:
An insertion instrument is configured to eject at least one anchor body into respective target locations, and subsequently apply a predetermined tensile force at least one actuation member of the at least one anchor member so as to actuate the at least one anchor body from a first configuration to a second expanded configuration. The insertion instrument can include a tension assembly that applies the predetermined tensile force to the at least one actuation member. The predetermined tensile force can be defined by a distance of travel, a predetermined failure force of a fuse, or a combination of distance of travel and a predetermined failure force of a fuse.
摘要:
An insertion instrument is configured to eject a pair of anchor bodies across an anatomical gap so as to approximate the gap. The insertion instrument can include a single cannula that retains the pair of anchor bodies in a stacked relationship, or a pair of adjacent cannulas that each retain respective anchor bodies. The insertion instrument can be actuated so as to eject the anchor bodies into respective target anatomical locations.
摘要:
The present invention is directed to an inflated interspinous spacer. The interspinous spacer is inserted into the interspinous space between adjacent spinous process in a deflated or unexpanded state, and is inflated or expanded with an injectable filler material. Upon inflation, the spacer preferably distracts the spinous processes and assumes a shape that retains the spacer in position and preferably mechanically locks with the spinous processes. The spacer includes two separate balloons configured to have different compressive modulus so that one balloon is softer and more deformable than the other balloon.
摘要:
The present invention is directed to an inflatable annulus repair device (10) for sealing an annulus defect located in an annulus fibrosis of an intervertebral disc space. In use, the inflatable device is introduced, in a first non-expanded state, preferably via a cannula (100) into the annulus defect. After the inflatable device has been properly positioned, a filler material (11) is injected into the inflatable device to expand the device to a second expanded state. In the second expanded state, the inflatable annulus repair device seals the annulus defect, secures its position within the annulus defect to thereby limit or prevent migration, and applies a compression force to a captured portion of the annulus adjacent to the defect. The inflatable device is preferably filled with a liquid that solidifies into an elastic material within the device.