Interspinous implant insertion instrument with wing actuation tool
AssigneeSpinal Simplicity, LLC
InventorsAdam Rogers, Douglas Snell, Annaria Barnds, Adam Frock, Jeffrey David Lee, Jeff Slover
Life of this patent
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Abstract
An insertion instrument for inserting an implant includes an elongated main body having a proximal handle and a distal portion that selectively couples to the implant. A wing actuation tool is slidably engaged in a central passage of the elongated main body to fix the implant to the elongated main body. The wing actuation tool temporarily attaches to the implant allowing for deployment and retraction of wings of the implant during surgery. Longitudinal translation of the wing actuation tool deploys an actuation plunger of the implant.
Claims20
An insertion instrument for inserting an interspinous implant into a patient, the insertion instrument comprising:
- an elongated main body extending distally from a handle, a distal end of the elongated main body configured to connect to the interspinous implant;
- and
- an actuation tool, comprising:
- a plunger knob disposed proximal to the handle;
- a plunger shaft extending distally from the plunger knob, the plunger shaft being received within a lumen of the handle and the elongated main body, the plunger shaft being longitudinally translatable within the lumen;
- a concentric flange disposed on a proximal portion of the plunger shaft, the concentric flange being received within the handle;
- and
- a coupling tip disposed at a distal end of the plunger shaft, the coupling tip configured to temporarily attach and lock to the interspinous implant;
- wherein distal longitudinal translation of the plunger knob actuates one or more components of the interspinous implant via the coupling tip,
- wherein proximal longitudinal translation of the plunger knob actuates one or more components of the interspinous implant via the coupling tip.
A system for inserting a spinal implant into a patient comprising:
- an insertion instrument comprising:
- an actuation tool comprising:
- a plunger knob having a plunger shaft extending distally therefrom;
- a concentric flange disposed around a proximal portion of the plunger shaft;
- a proximal end cap receiving the plunger shaft, the proximal end cap disposed distal to the plunger knob and proximal to the concentric flange;
- and
- a coupling tip at a distal end of the plunger shaft, the coupling tip configured to receive the spinal implant thereon,
- wherein distal longitudinal translation of the plunger knob actuates one or more components of the spinal implant via the coupling tip,
- wherein proximal longitudinal translation of the plunger knob actuates one or more components of the spinal implant via the coupling tip;
- a handle disposed distal to the proximal end cap, the handle receiving the plunger shaft and the concentric flange therein;
- a proximal drive shaft extending distally from a drive shaft knob, the drive shaft knob rotatably attached to a distal end of the handle;
- and
- a distal hex nut drive concentrically disposed around a distal portion of the proximal drive shaft.
A method of using an insertion instrument to place a spinal implant into a patient, the method comprising:
- assembling the insertion instrument, comprising:
- inserting an extension of a plunger shaft through a hole disposed on a proximal end cap, movement of the extension in a proximal direction through the hole being limited by a concentric flange disposed on the plunger shaft and abutting a distal side of the proximal end cap;
- mechanically coupling the extension to a plunger knob;
- inserting a distal portion of the plunger shaft through a proximal housing, a handle, and an elongated main body;
- coupling the proximal end cap to the proximal housing;
- inserting a distal portion of the elongated main body through a proximal drive shaft;
- securing the proximal drive shaft to the handle;
- and
- operatively coupling a distal portion of the proximal drive shaft to a distal hex nut driver.
Dependencies are inferred from the claim text.