Materials, devices and methods for implantation of transformable implants
An implant and implantable technology, applied in spinal implants, medical science, surgery, etc., can solve the difficulty of surgical installation of implants, the difficulty of flexible implants, and the inability of flexible devices to damage areas or areas of the body. structure to provide adequate support, etc.
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Embodiment 1
[0080] A hollow rod consisting of high modulus polyethylene fibers (SPECTRA(R) fibers, commercially available from Honeywell International, Inc., Colonial Heights, VA) was cut in half, and one half was elongated and inserted into the other half to form a two-layer composite rod . The polyethylene fiber composite rod constitutes the primary phase or material and the gelatin constitutes the secondary phase or material. Composite deformable rods are initially relatively flexible. Fill the composite rod with gelatin until full, tie the ends of the hollow rod, wipe off excess gelatin, and allow the clear glue-soaked composite rod to dry under ambient conditions. After drying, the rod hardens. The rigid composite rods were then rehydrated in 37°C water and the rods eventually became flexible. The composite rod remained rigid for a few minutes after rehydration, but slowly became more flexible over a period of about 1 hour over time. The composite rod can be used as a stabilizing...
Embodiment 2
[0082] A gelatin solution was cast into a polyethylene fiber braid to create a deformable front tension band. The polyethylene fiber braid constitutes the primary phase or material and the gelatin solution constitutes the secondary phase or material. The deformable strip is initially relatively flexible. Excess gelatin is removed from the surface of the tape, and the tape is substantially dehydrated by heating or otherwise in a vacuum oven. Once substantially dehydrated, the deformable tape becomes relatively rigid because the movement of the polyethylene fibers is restricted by the dry gelatin particles embedded in the fibres. During insertion into the body, the gelatin absorbs body fluids, thereby lubricating the outer surface of the deformable band and facilitating insertion. Next, the deformable band will be attached to the vertebrae by anchoring means such as shackles or screws. By tensioning the vertebrae, the stress shielding effect is avoided because the vertebrae a...
Embodiment 3
[0084] A gelatin solution was cast into a polyethylene fiber braided tether to create a deformable disc implant. The polyethylene fiber braid constitutes the primary phase or material and the gelatin solution constitutes the secondary phase or material. Excess gelatin is removed from the surface of the tether, and the tether is substantially dehydrated by heating or otherwise in a vacuum oven. Once substantially dehydrated, the deformable tethers become relatively rigid because the movement of the polyethylene fibers is restricted by the xerogel particles embedded in the fibers. The tethers are cut into shorter segments and they are inserted into the disc or nuclear space by, for example, a cannula. The gelatin is rehydrated by body fluids in the disc or nuclear space, and the deformable segment returns to the relatively flexible state of the braided tether.
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