Instrument for inserting surgical implant with guiding rail
AssigneeStryker Spine
InventorsBryan D. Milz, Christine Herrmann
Life of this patent
Estimating the term…
Abstract
A prosthetic intervertebral spacer is disclosed. The spacer preferably includes a body and an interface extending away from the body for use during implantation of the spacer. Methods of implanting the spacer and tools used during such procedure are also disclosed.
Claims35
A surgical tool for inserting and positioning a prosthetic intervertebral spacer in the intervertebral disc space between two adjacent vertebrae, the tool comprising:
- a grasping portion including first and second arms having proximal and distal ends, the distal ends being separated by a first dimension;
- a sleeve having an inner surface, the sleeve being slidably disposed about the grasping portion, at least a portion of the inner surface having an inner dimension less than the first dimension;
- a handle portion connected to the proximal ends of the first and second arms, the handle portion having a rod actuator and a sleeve actuator, the sleeve actuator connected to the sleeve to slide the sleeve with respect to the first and second arms;
- and
- a rod having a first end disposed adjacent the distal ends of the first and second arms and a second end, the rod actuator connected to the second end to slide the rod with respect to the grasping portion.
A method of using a surgical tool for inserting and positioning a prosthetic intervertebral spacer in the intervertebral disc space between two adjacent vertebrae, the method comprising the steps of:
- providing a surgical tool including:
- a grasping portion having first and second arms having proximal and distal ends, the distal ends being separated by a first dimension,
- a sleeve having an inner surface, the sleeve being slidably disposed about the grasping portion, at least a portion of the inner surface having an inner dimension less than the first dimension,
- a handle portion connected to the proximal ends of the first and second arms, the handle portion having a rod actuator and a sleeve actuator, the sleeve actuator connected to the sleeve to slide the sleeve with respect to the first and second arms, and
- a rod having a first end disposed adjacent the distal ends of the first and second arms and a second end, the rod actuator connected to the second end to slide the rod with respect to the grasping portion;
- positioning the distal ends of the first and second arms adjacent an interface of an intervertebral spacer;
- moving the sleeve such that the portion of the inner surface of the sleeve having the inner dimension overlaps the distal ends of the first and second arms, thereby engaging the tool to the interface of the spacer;
- and
- engaging the first end of the rod to a notch in the spacer.
A method of using a surgical tool for inserting and positioning a prosthetic intervertebral spacer in the intervertebral disc space between two adjacent vertebrae, the method comprising the steps of:
- positioning distal ends of first and second arms of a surgical tool adjacent an interface of an intervertebral spacer, the distal ends being separated by a first dimension;
- moving a sleeve of the tool such that a portion of an inner surface of the sleeve having an inner dimension less than the first dimension overlaps the distal ends of the first and second arms, thereby engaging the tool to the interface of the spacer;
- and
- engaging a rod of the tool to a notch in the spacer.
Dependencies are inferred from the claim text.