US 12,642,563 B2 · Instrument for inserting an interspinous process implant

Abstract

An insertion device for deploying an implant includes an elongated main body having a distal locking portion for coupling to the implant and a proximal handle portion. The main body defines a central passage and the distal locking portion has outer ridges and slots to allow the outer ridges to flex radially inward when mounting to the implant. A plunger slides in the central passage for movement between an unlocked position for mounting the implant on the distal locking portion, a locked position for locking the implant on the distal locking portion, and an insertion instrument deployed position for deploying the actuation plunger to move the blades from the stowed position to the deployed position. A spike cap drive rotatably mounts on the main body having a socket end for engaging a drive nut on the implant to, in turn, move the spike cap.

Claims20

Dependent claims

An insertion instrument configured to insert an implant, the insertion instrument comprising:

a spike cap drive having a distal end and a proximal end;
a drive shaft located proximally of and coupled to the spike cap drive, the drive shaft having a distal portion and a proximal portion;
an elongated main body receivable within the drive shaft, the elongated main body comprising:
a tip configured to extend into a socket end of the spike cap drive when the insertion instrument is fully assembled, the tip configured to operatively engage the implant,
wherein the tip is configured to extend outside the socket end during a movement of the spike cap drive along a longitudinal direction relative to the drive shaft;
and
a spring surrounding a first portion of the elongated main body and extending distally from the drive shaft,
the spike cap drive comprising:
an axial passage configured to receive the spring, a second portion of the elongated main body, and the distal portion of the drive shaft;
and
the socket end comprising a shaped opening configured to couple to the implant.

8 more elements

A surgical system comprising an implant and an insertion instrument, wherein the implant comprises:

a body comprising threads configured to facilitate insertion of the implant into a target interspinous process space;
one or more blades configured to move between a deployed position and a stowed position;
and
a shaped socket for engaging with the insertion instrument;
wherein the insertion instrument comprises:
a spike cap drive having a distal end and a proximal end;
a drive shaft located proximally of and coupled to the spike cap drive, the drive shaft having a distal portion and a proximal portion;
an elongated main body receivable within the drive shaft;
and
a spring surrounding a first portion of the elongated main body and extending distally from the drive shaft,
the spike cap drive comprising:
an axial passage configured to receive the spring, a second portion of the elongated main body, and the distal portion of the drive shaft;
and
a socket end configured to couple to the implant.

11 more elements

A method of using an insertion instrument, the method comprising:

providing the insertion instrument comprising:
a spike cap drive having a distal end and a proximal end;
a drive shaft located proximally of and coupled to the spike cap drive, the drive shaft having a distal portion and a proximal portion;
an elongated main body receivable within the drive shaft;
and
a spring surrounding a first portion of the elongated main body and extending distally from the drive shaft,
the spike cap drive comprising:
an axial passage configured to receive the spring, a second portion of the elongated main body, and the distal portion of the drive shaft;
and
a socket end configured to couple to an implant;
dand
securing the implant to the socket end of the insertion instrument comprising:
retracting a plunger of the insertion instrument into an unlocked position;
retracting the spike cap drive into a retracted configuration such that a tip of the elongated main body is exposed;
partially engaging the implant to the tip of the elongated main body;
extending the plunger of the insertion instrument into a locked position;
and
extending the spike cap drive such that the socket end of the spike cap drive operatively engages the implant.

15 more elements

Dependencies are inferred from the claim text.

Instrument for inserting an interspinous process implant

Life of this patent

Instrument for inserting an interspinous process implant

Life of this patent

Abstract

Claims20