Patents Directory for Dr. Gary K. Michelson — U.S. Published Patents only

340 patents found - Page 12
Patent Abstract
Artificial spinal fusion implants - Patent 6,478,823Artificial spinal fusion implants - Patent 6,478,823
A spinal implant is disclosed which when placed within the spinal disc space stabilizes that spinal segment and materially participates in, and is incorporated in, the ensuing fusion.
Surgical glove - Patent 6,370,694Surgical glove - Patent 6,370,694
A puncture resistant surgical glove which is sterilizable, supple, and contains a leak detection mechanism for the purpose of protecting the wearer from the biohazard of microorganism inoculation via hand skin puncture is disclosed. A condom having a leak detection mechanism also is disclose.
Expandable threaded arcuate interbody spinal fusion implant with lordotic     configuration during insertion - Patent 6,814,756Expandable threaded arcuate interbody spinal fusion implant with lordotic configuration during insertion - Patent 6,814,756
An at least in part frusto-conical threaded interbody spinal fusion implant having an expandable height.
Orthopedic implant surface configuration - Patent 7,115,143Orthopedic implant surface configuration - Patent 7,115,143
The present invention is a specialized orthopedic implant having an exterior surface for engaging bone. The surface comprises arrayed projections having at least one forward facing facet directed at least in part toward the leading end of the implant and at least one rearward portion directed at least in part toward the opposite trailing end of the implant. Each of the forward facet and rearward portion has a length and a slope. The length of the forward facet is longer than the length of the rearward facet. The slope of the rearward facet is steeper than the slope of the forward facet. The surface projections also have opposed side facets directed generally toward the sides of the implant. The side facets are located between the forward facet and rearward facet and converge toward each other in a direction away from the base of the surface projections. The surface may also include projections having left and right forward side facets and a rearward facet. The surface further may include projections having left and right rearward side facets and a forward facet.
Surgical rongeur - Patent 6,575,977Surgical rongeur - Patent 6,575,977
An improved rongeur for cutting bone or cartilage comprising two shaft members capable of reciprocating motion relative to each other wherein one shaft member terminates in a foot plate and the other shaft member comprises a combined cutting element and storage member is disclosed. The combined cutting element and storage member has a cutting edge at its distal end and a storage chamber proximate the cutting edge for collecting and storing cut pieces of bone or cartilage in an amount greater than the maximum bone or cartilage capable of being cut in a single full cut. The combined cutting element and storage member is truly disposable, rather than merely replaceable and requires the use of no tools or special assembly. The rongeur may be manually activated or activated by a solenoid and powered by a battery.
Screws of cortical bone and method of manufacture thereof - Patent 7,094,239Screws of cortical bone and method of manufacture thereof - Patent 7,094,239
A screw formed of cortical bone for use in the human body with an implant having a screw hole for receiving at least a portion of a screw therethrough, includes a shaft with a thread along at least a portion of its length. The thread has an outer diameter dimensioned to pass through the screw hole in the implant. The trailing end of the screw is configured to cooperatively engage at least a portion of the screw hole of the implant so as to prevent the screw from linear motion along the mid-longitudinal axis of the shaft in a direction opposite to the direction of insertion when the screw is threaded through the screw hole to attach the implant to a bone portion of the human body. The screw is formed substantially of cortical bone of a single cortical thickness.
Interbody spinal fusion implants with multi-lock for locking opposed screws - Patent 6,558,423Interbody spinal fusion implants with multi-lock for locking opposed screws - Patent 6,558,423
An apparatus includes an interbody spinal fusion implant having a leading end, a trailing end, and a length therebetween, and opposed upper and lower portions adapted to contact each of the adjacent vertebral bodies. Each of the upper and lower portions has at least one opening adapted to communicate with one each of the adjacent vertebral bodies and to communicate with one another to permit for the growth of bone from vertebral body to adjacent vertebral body through the implant. Each of the upper and lower portions has at least one screw hole passing therethrough proximate the trailing end. The apparatus further includes bone screws adapted for placement through the screw holes of the upper and lower portions and into each of the adjacent vertebral bodies adjacent the disc space to be fused and into which the implant is adapted to be positioned. At least one lock may be used to prevent the bone screws from backing out of the vertebral bodies and implant.
Nested interbody spinal fusion implants - Patent 6,485,517Nested interbody spinal fusion implants - Patent 6,485,517
Tapered root threaded hollow perforated interbody spinal fusion implants are disclosed for placement into a disc space in a human spine between adjacent vertebral bodies. The implants have opposite arcuate portions with lockable screws passing therethrough for engaging each of the adjacent vertebral bodies. The implants are adapted for use in side-by-side pairs such that a portion of the circumference of a first implant nests within the circumference of a second implant, so as to have a reduced combined width.
Spinal implant with bone screws - Patent 6,364,880Spinal implant with bone screws - Patent 6,364,880
A spinal fixation device for stabilizing one or more segments of the human spine and for preventing the dislodgement of intervertebral spinal fusion implants, which remains permanently fixated once applied. The spinal fixation device of the present invention comprises of a staple member made of material appropriate for human surgical implantation which is of sufficient length to span the disc space between two adjacent vertebrae and to engage, via essentially perpendicular extending projections, the vertebrae adjacent to that disc space. A portion of the staple of the spinal fixation device interdigitates with an already implanted intervertebral spinal fusion implant which itself spans the disc space to engage the adjacent vertebrae, and the spinal fixation deice is bound to the spinal fusion implant by a locking means. The spinal fixation device of the present invention is of great utility in restraining the vertebrae adjacent to the spinal fusion implant from moving apart as,the spine is extended and also serves as an anchor for a multi-segmental spinal alignment means for aligning more that one segment of the spine.
Artificial lumbar interbody spinal implant having an asymmetrical leading     end - Patent 7,462,195Artificial lumbar interbody spinal implant having an asymmetrical leading end - Patent 7,462,195
An artificial interbody spinal implant adapted for placement across an intervertebral space formed across the height of a disc space between two adjacent vertebral bodies is disclosed. The implant has an asymmetrical leading end adapted to sit upon the more peripheral areas, such as the apophyseal rim and the apophyseal rim area, of the vertebral end plate region of the vertebral bodies without protruding therefrom. The asymmetrical leading end allows for the safe use of an implant of maximum length for the implantation space into which it is installed. The implant can also include an asymmetric trailing end adapted to sit upon the more peripheral areas of the vertebral end plate region of the vertebral bodies.
Expandable threaded arcuate interbody spinal fusion implant with     cylindrical configuration during insertion - Patent 6,500,205Expandable threaded arcuate interbody spinal fusion implant with cylindrical configuration during insertion - Patent 6,500,205
An at least in part cylindrical threaded interbody spinal fusion implant having an expandable height.
Bone hemi-lumbar interbody spinal implant having an asymmetrical leading     end and method of installation thereof - Patent 6,350,283Bone hemi-lumbar interbody spinal implant having an asymmetrical leading end and method of installation thereof - Patent 6,350,283
An interbody spinal implant is formed of cortical bone adapted for placement across an intervertebral space formed across the height of a disc space between two adjacent vertebral bodies. An asymmetrical leading end on the implant is adapted to sit upon the peripheral areas, such as the apophyseal rim and the apophyseal rim area, of the vertebral end plate region of the vertebral bodies without protruding therefrom. The asymmetrical leading end allows for the safe use of an implant of maximum length for the implantation space into which it is installed. The implant can also include an asymmetric trailing end adapted to sit upon the more peripheral areas of the vertebral end plate region of the vertebral bodies.
Cap for use with artificial spinal fusion implant - Patent 6,582,432Cap for use with artificial spinal fusion implant - Patent 6,582,432
An artificial spinal implant is disclosed which when placed between two adjacent vertebrae directly participates and is incorporated in the ensuing fusion. Instrumentation and procedure is also disclosed.
Instrumentation and method for creating an intervertebral space for     receiving an implant - Patent 6,224,607Instrumentation and method for creating an intervertebral space for receiving an implant - Patent 6,224,607
A surgical instrument set for use in spinal surgery for forming a substantially quadrilateral space in the spine for implanting a spinal implant at least in part into and at least in part across a disc space between adjacent vertebral bodies and methods of use are disclosed. The instrument set includes an extended guard for providing protected access to the disc space and the adjacent surfaces of the adjacent vertebral bodies, a guide insertable into the guard, and a bone removal device insertable into said guide.
Method of manufacturing a container having content lifting and removing     assembly - Patent 6,269,974Method of manufacturing a container having content lifting and removing assembly - Patent 6,269,974
An improved lifting assembly for removing contents from containers consistent with mechanized containerizing operations are disclosed. The lifting assembly of the present invention comprises a support plate for lifting contents coupled to the top of a container by a connector.
Container replacement top and content lifting and removing assembly - Patent 6,318,602Container replacement top and content lifting and removing assembly - Patent 6,318,602
An improved lifting assembly for removing contents from containers consistent with mechanized containerizing operations are disclosed. The lifting assembly of the present invention comprises a support plate for lifting contents coupled to the top of a container by a connector.
Content lifting and removing container assembly and method of use thereof - Patent 6,299,030Content lifting and removing container assembly and method of use thereof - Patent 6,299,030
An improved lifting assembly for removing contents from containers consistent with mechanized containerizing operations are disclosed. The lifting assembly of the present invention comprises a support plate for lifting contents coupled to the top of a container by a connector.
Anterior spinal instrumentation and method for implantation and revision - Patent RE37,161Anterior spinal instrumentation and method for implantation and revision - Patent RE37,161
A system and method for anterior fixation of the spine utilizes a cylindrical implant engaged in the intradiscal space at the cephalad and caudal ends of the construct. The implants are cylindrical fusion devices (10) filled with bone material to promote bone ingrowth and fusion of the disc space. An attachment member (40) is connected to each of the fusion devices (10) and bone screws (30) having similar attachment members (33) are engaged in the vertebral bodies of the intermediate vertebrae. A spinal rod (50) is connected to each of the attachment members using an eyebolt assembly (53, 54, 55). In a further inventive method, a revision of the construct is achieved by removing the fusion devices. Each fusion device is engaged by an elongated guide member (62) over which a cylindrical trephine (70) is advanced. The trephine (70) has an inner diameter larger than the diameter of the fusion implant and includes cutting teeth (72) for extracting a core (84) of bone material around the fusion implant. The trephine (70) and guide member (62) are removed along with the bone core (84) containing the fusion implant (10). The trephine (70) is also used to extract a bone dowel from a solid bone mass to be inserted into the space left by the removed bone core (84).
Anterior spinal instrumentation and method for implantation and revision - Patent 6,190,388Anterior spinal instrumentation and method for implantation and revision - Patent 6,190,388
A system and method for anterior fixation of the spine utilizes a cylindrical implant engaged in the a intradiscal space at the cephalad and caudal ends of the construct. The implants are cylindrical fusion devices (10) filled with bone material to promote bone ingrowth and fusion of the disc space. An attachment member (40) is connected to each of the fusion devices (10) and bone screws (30) having similar attachment members (33) are engaged in the vertebral bodies of the intermediate vertebrae. A spinal rod (50) is connected to each of the attachment members using an eyebolt assembly (53, 54, 55). In a further inventive method, a revision of the construct is achieved by removing the fusion devices. Each fusion device is engaged by an elongated guide member (62) over which a cylindrical trephine (70) is advanced. The trephine (70) has an inner diameter larger than the diameter of the fusion implant and includes cutting teeth (72) for extracting a core (84) of bone material around the fusion implant. The trephine (70) and guide member (62) are removed along with the bone core (84) containing the fusion implant (10). The trephine (70) is also used to extract a bone dowel from a solid bone mass to be inserted into the space left by the removed bone core (84).
Anterior spinal instrumentation and method for implantation and revision - Patent RE37,005Anterior spinal instrumentation and method for implantation and revision - Patent RE37,005
A system and method for anterior fixation of the spine utilizes a cylindrical implant engaged in the intradiscal space at the cephalad and caudal ends of the construct. The implants are cylindrical fusion devices (10) filled with bone material to promote bone ingrowth and fusion of the disc space. An attachment member (40) is connected to each of the fusion devices (10) and a spinal rod (50) is connected to each of the attachment members using an eyebolt assembly (53, 54, 55). In a further inventive method, a revision of the construct is achieved by removing the fusion devices. Each fusion device is engaged by an elongated guide member (62) over which a cylindrical trephine (70) is advanced. The trephine (70) is used to extract a core (84) of bone material around the fusion implant, while the guide member (62) is used to remove the bone core (84) containing the fusion implant (10). In another aspect of the invention, a removal insert (90, 90') is provided that engages an implanted fusion device (10). The removal insert (90, 90') can be used to guide the trephine (70) around the fusion device, and is connected to a removal tool (100) once the bone core is created. The removal tool (100) includes a shaft (101) attached to the removal insert (90, 90'), and a slap hammer (104) slidably mounted on the shaft.