Inserter guide and driver system

Patent metadata

Field	Value
Publication number	US-2023263641-A1
Application number	US-202318106878-A
Country	US
Kind code	A1
Filing date	Feb 7, 2023
Priority date	Aug 19, 2016
Publication date	Aug 24, 2023
Grant date	—

Abstract

Disclosed herein is a guide device and a driver, which allows for the preparation of an anatomic cavity for screw fixation of an implant or spacer, including the guidance for hole preparation, and guidance for insertion of screws, and or anchors, while selecting the amount of rigidity, and selecting the amount of visibility.

First claim

What is claimed:

1 . A driver comprising:
a rotatable driver shaft; a rod disposed within the rotatable driver shaft; a driver tip at a distal end of the rotatable driver shaft, the driver tip coupled to the rotatable driver shaft at a rotatable joint; a housing that receives the rotatable driver shaft at a distal end thereof; and a control element disposed at a proximal end of the housing, the control element receiving a proximal end of the rod, wherein actuation of the control element engages the proximal end of the rod, causing a distal end of the rod to frictionally engage the rotatable joint.

2 . The driver of claim 1 , wherein the rotatable joint comprises a spherical head and a mating surface having a domed surface to mate with the spherical head,
wherein the spherical head includes an interface extending therefrom adapted to engage a fastener.

3 . The driver of claim 2 , wherein the rod is adapted to frictionally engage the spherical head,
wherein the an angle of the driver tip relative to a longitudinal axis of the rotatable driver shaft can be adjusted to a present angle and held at the preset angle through the frictional engagement of between the spherical head and the rod.

4 . The driver of claim 1 , wherein a axial force is applied to the proximal end of the rod through engagement between the control element with the rod.

5 . The driver of claim 1 , wherein the housing is coupled to the rotatable driver shaft such that movement of the housing causes corresponding movement of the driver shaft and a resulting pivoting movement of the rotatable joint, thereby allowing the angle of the driver tip to change with respect to the driver shaft.

6 . The driver of claim 1 , wherein engagement between the rod and the control element fixes a position of the rod within the housing.

7 . The driver of claim 1 , wherein the rod is spring loaded within the housing.

8 . The driver of claim 1 , wherein the driver tip includes an interface extending therefrom adapted to engage a fastener,
wherein the angle of the interface with respect to the rod can vary by up to about 180°.

9 . The driver of claim 1 , wherein the driver tip includes an interface extending therefrom adapted to engage a fastener,
wherein the angle of the interface with respect to the rod can vary by about 45°.

10 . An implant holder and guide device comprising:
a rotatable driver shaft; a collar coupled to the distal end of the rotatable driver shaft; a guide sized and configured to mate with an implant, the guide having an elongated neck including an engagement feature for coupling with a corresponding engagement feature of the collar; a housing that receives the rotatable driver shaft at a distal end thereof; wherein rotation of the housing results in a corresponding rotation of the collar and coupling between the guide and collar engagement features.

11 . The device of claim 10 , wherein the guide comprises a first guide body and an opposing second guide body, the first and second guide bodies spaced apart from each other and coupled at a proximal end of the neck,
wherein a gap between the first and second guide body can be reduced by compressing the first and second guide bodies towards each other.

12 . The device of claim 11 , wherein the first and second guide bodies are compressed towards each other by engagement between the collar and the guide.

13 . The device of claim 11 , wherein the engagement feature of the guide threadedly engages the corresponding engagement feature of the collar,
wherein the first and second guide bodies are coupled at the neck at a location corresponding to the engagement feature.

14 . The device of claim 13 , wherein the first and second guide bodies are biased in a spaced apart position.

15 . The device of claim 10 , wherein the guide comprises a through hole extending transverse to a longitudinal axis of the guide, the through hole sized and configured to accommodate at least one of bone screw, pin, anchor, drill, punch, awl, and guide.

16 . The device of claim 15 , wherein the guide includes an annular sleeve extending from the through hole in a direction away from the guide.

17 . The device of claim 11 , further including an implant coupled to the guide for engaging an interbody fusion device.

18 . The device of claim 17 , guide includes a projection extending from a bottom surface sized and configured to engage a corresponding opening provided on a top surface of the implant,
wherein compression of the first and second guide bodies secures the implant to the guide by compressing the projection against the opening of the implant.

19 . The device of claim 18 , wherein the guide comprises a through hole extending transverse to a longitudinal axis of the guide, the through hole sized and configured to accommodate at least one of bone screw, pin, anchor, drill, punch, awl, and guide wire,
wherein the through hole extends through the projection.

20 . The device of claim 17 , further including:
an interbody fusion device coupled to the implant, wherein the interbody fusion devise comprises at least one of a spacer and a bone graft.

Assignees

• Depuy Synthes Products Inc

Inventors

• Livorsi Carl
• Amaral Francisco
• Posluszny Matthew
• Murphy Raymond
• Gerber David

Classifications

• A61F2/4611 Primary

  of spinal prostheses · CPC title

• A61B17/8875 Primary

  Screwdrivers, spanners or wrenches · CPC title

• A61B17/8894

  holding the implant into or through which the screw is to be inserted (A61B17/7082, A61B17/7091 take precedence) · CPC title

• A61F2002/30787

  inclined obliquely with respect to each other · CPC title

• A61F2002/4627

  with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument · CPC title