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US 2014/0277467 A1Published application
Prosthetic Spinal Disk Nucleus
OwnerNadi Salah Hibri, James Douglas Lutzinventors
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Abstract
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.
Claims25
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.
6 more elements
A method of implanting a prosthetic device, comprising:
- penetrating the annular fibrosus;
- removing the nucleus pulposus;
- implanting an inflatable device within the annular fibrosus, the inflatable 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.
9 more elements
An inflatable implantable device comprising:
- an inflatable inner chamber;
- an inflatable outer chamber, comprising a memory shape material adjacent the outer periphery capable of deforming from a first delivery shape, to a second, deployed shape;
- an inflation valve in fluid communication with the inner and outer chamber and configured to receive and retain a first medium in the first chamber and a second medium in the second chamber.
A method of providing cured silicon to the body:
- implanting an inflatable containment element in the body;
- injecting a flowable, curable silicone into the containment vessel;
- curing the injected silicone using either a curing agent or UV light.
A method of providing cured silicone to the body comprising:
- creating a body cavity;
- injecting a flowable curable silicone into the body cavity;
- and
- curing the injected silicone using either a curing agent or UV light.
1 more element
A system for implanting an inflatable prosthetic vertebral nucleus comprising:
- an access and delivery cannula having an inner diameter,
- a nucleotomy tool for removal of the nucleus pulposus from a vertebral disc, wherein the nucleotomy tool is sized to fit within the inner diameter of the access and delivery cannula;
- a delivery and inflation stylus for delivering an inflatable prosthetic implant, wherein the stylus is sized to fit within the inner diameter of the access and delivery cannula;
- and
- an inflatable prosthetic disc implant comprising a first and second chamber, wherein the first and second chamber are fluidly isolated from one another, and the prosthetic disc implant is sized to be delivered through the access cannula by the delivery and inflation stylus to a position within the vertebral disc in an uninflated state.
2 more elements
A method for implanting an inflatable prosthetic vertebral nucleus, comprising:
- penetrating the annulus fibrosus and accessing the nucleus pulposus of an intervertebral disk using an access and delivery cannula;
- delivering through the access cannula a nucleotome that is configured to allow the removal of the nucleus fibrosis from the intervertebral disc while leaving the annulus fibrosus substantially intact;
- maneuvering the nucleotome within the annulus fibrosus to remove the nucleus pulposus;
- removing the nucleotome;
- delivering a folded and deflated prosthetic implant through the access and delivery cannula and through the annulus fibrosus into the void formerly occupied by the nucleus pulposus;
- inflating the prosthetic implant using an inflation stylus wherein the prosthetic implant is inflated with at least two mediums including a gas and a curable silicon;
- curing the silicone within the prosthetic implant using a curing agent or UV light;
- and
- removing the inflation stylus and the access and delivery cannula.
6 more elements
An access cannula for penetrating and accessing the annulus fibrosus of a vertebral disc comprising:
- a proximal end;
- a distal end;
- an inner diameter sized to deliver one or more instruments or prosthetic devices;
- wherein the one or more instruments include a nucleotome, a delivery stylus, or an inflatable balloon.
1 more element
Dependencies are inferred from the claim text.