Trial inserter and trial head
AssigneeGlobus Medical, Inc.
InventorDamien Kahmer
Life of this patent
Estimating the term…
Abstract
Embodiments are directed to spinal treatments and, more particularly, to a trial inserter tool compatible with detachable trial heads for use in spinal surgery. In a preferred embodiment, the present invention provides a system for sizing an implant to be used in posterior lumbar interbody fusion surgery. The system may comprise a trial inserter tool, wherein the trial inserter tool comprises: a body, wherein the body is an elongated tubular, wherein the body comprises a first end and a second end; an actuation device, wherein the actuation device is disposed on the body between the first end and the second end; and a hooked support member that extends from the second end of the body; and a trial head disposable on the hooked support member.
Claims20
A system for sizing an implant, comprising:
- a trial inserter tool, wherein the trial inserter tool comprises:
- a body, wherein the body is elongated, wherein the body comprises a first end and a second end;
- an actuation device, wherein the actuation device is disposed on the body between the first end and the second end;
- and
- a hooked support member that extends from the second end of the body;
- and
- a trial head releasably attachable to the hooked support member.
A system for sizing an implant, comprising:
- a trial inserter tool, wherein the trial inserter tool comprises:
- a body, wherein the body is an elongated tubular, wherein the body comprises a first end and a second end, wherein a hole is disposed in the body between the first end and the second end;
- a plunger disposed in the body, wherein the plunger is axially translatable in the body from a retracted position to an extended position with a distal end of the plunger extending from the second end of the body;
- an actuation device coupled to the plunger and operable to move the plunger from the extended position to the retraced position, wherein the actuation device comprises a sleeve and a button, wherein the sleeve is disposed around the body and positioned between the first end and the second end at the hole, wherein the sleeve is axially displaced in response to actuation of the button, wherein axial displacement of the sleeve is limited by the hole in the body is actuable to release an axis of motion for the sleeve;
- and
- a hooked support member that extends from the second end of the body, wherein the hooked support member comprises an end extension that longitudinally extends from the second of the body and a main protrusion that protrudes from a distal end of the end extension towards a central axis of the trial inserter tool;
- and
- a trial head releasably attachable to the hooked support member, wherein the trial head comprises:
- a head body;
- a channel for receiving the end extension, wherein channel is formed in an outer surface of the head body and extends longitudinally from a first end of the head body;
- a head hole for receiving the main protrusion and disposed in the channel at an end of the channel opposite the first end;
- a recess disposed in the first end for receiving the plunger in the extended position to lock the trial head onto the trial inserter tool;
- and
- a marker disposed in the head body, wherein the marker is radioactive.
A trial inserter tool, comprising:
- a body, wherein the body is elongated, wherein the body comprises a first end and a second end;
- an actuation device, wherein the actuation device is disposed on the body between the first end and the second end;
- a plunger, wherein the plunger is disposed within the body;
- and
- a hooked support member, wherein the hooked support member is disposed at the second end, wherein the hooked support member is operable to support a trial head on the trial inserter tool.
Dependencies are inferred from the claim text.