摘要:
A spinal disc replacement surgical instrument includes a first contacting member positionable along an endplate of a first vertebra and a second contacting member positionable along an endplate of second vertebra. The second contacting member is moveable relative to the first contacting member. A handle assembly is coupled to the first contacting member and the second contacting member. At least one actuating member is positioned between the first contacting member and the second contacting member. The at least one actuating member is moveable by the hand assembly from a first position, wherein the first and second contacting members include an unexpanded configuration relative to one another for insertion in the spinal cavity, to a second position providing expanded configuration relative to one another. The actuating member is configured to displace at least one of the first contacting member and the second contacting member away from each other to move the first contacting member and the second contacting member between the first position and the second position. The first contacting member has a first distal end and the second contacting member has a second distal end. The first end has a first end shape configured to conform to a shape of the first vertebra and the second end has a second end shape configured to conform to a shape of the second vertebra. The first end shape and the second end shape are different shapes.
摘要:
Instruments and methods for preparing a spinal disc space to receive an implant include an annulus template, a footprint template, a distractor for distracting adjacent vertebrae, and a guide member for guiding a chisel. The instruments and methods can be employed in an oblique approach to the spinal disc space.
摘要:
An instrument for separating adjacent vertebrae includes a handle assembly and a distal portion at a distal end of the handle assembly. The distal portion includes first and second members movable from an unexpanded configuration for insertion in the disc space toward an expanded configuration to separate the vertebrae. A cutting member of a cutting instrument can be guided by the instrument to prepare the vertebrae for engagement with an implant.
摘要:
A prosthetic device for anterior-oblique insertion into an intervertebral space is provided. The prosthetic device includes a first component having a first flange for engaging a first vertebra from an anterior-oblique approach, the first flange being angled relative to the longitudinal and transverse axes of the first component, and a second component having a second flange for engaging a second vertebra from an anterior-oblique approach, the second flange being angled relative to the longitudinal and transverse axes of the second component, and wherein the first and second components cooperate to permit articulating motion between the first and second components.
摘要:
Medical devices for the treatment of spinal conditions are described herein. The medical device of this invention includes a spacer that is disposed between adjacent spinous processes and has a proximal retention member and a distal retention member, which may be rotated with respect to the proximal retention member between an initial implantation configuration and a final locked configuration.
摘要:
A targeting surgical instrument for use in spinal disc replacement includes a first arm, a second arm and a body portion. The first arm is configured to be longitudinally aligned with a mid-line of a spine and to be at least partially received on an endplate of a lower vertebra of spinal cavity. The spinal cavity is defined by a lower vertebra and an upper vertebra of the spinal cavity. The second arm is positioned at an angle relative to the first arm. The second arm defines an insertion angle for a spinal implant. The body portion connects the first arm and the second arm. The body portion includes a plurality of radial opaque markers located to allow alignment of the first arm on the mid-line of the spine.
摘要:
A spinal disc replacement surgical instrument includes a first contacting member positionable along an endplate of a first vertebra and a second contacting member positionable along an endplate of second vertebra. The second contacting member is moveable relative to the first contacting member. A handle assembly is coupled to the first contacting member and the second contacting member. At least one actuating member is positioned between the first contacting member and the second contacting member. The at least one actuating member is moveable by the hand assembly from a first position, wherein the first and second contacting members include an unexpanded configuration relative to one another for insertion in the spinal cavity, to a second position providing expanded configuration relative to one another. The actuating member is configured to displace at least one of the first contacting member and the second contacting member away from each other to move the first contacting member and the second contacting member between the first position and the second position. The first contacting member has a first distal end and the second contacting member has a second distal end. The first end has a first end shape configured to conform to a shape of the first vertebra and the second end has a second end shape configured to conform to a shape of the second vertebra. The first end shape and the second end shape are different shapes.
摘要:
Instruments and methods for preparing a spinal disc space to receive an implant include an annulus template, a footprint template, a distractor for distracting adjacent vertebrae, and a guide member for guiding a chisel. The instruments and methods can be employed in an oblique approach to the spinal disc space.
摘要:
Medical devices for the treatment of spinal conditions are described herein. The medical device of this invention includes a spacer that is disposed between adjacent spinous processes and has a proximal retention member and a distal retention member, which may be rotated with respect to the proximal retention member between an initial implantation configuration and a final locked configuration.
摘要:
An instrument for separating adjacent vertebrae includes a handle assembly and a distal portion at a distal end of the handle assembly. The distal portion includes first and second members movable from an unexpanded configuration for insertion in the disc space toward an expanded configuration to separate the vertebrae. A cutting member of a cutting instrument can be guided by the instrument to prepare the vertebrae for engagement with an implant.