System And Method For Navigated Drill Guide

Patent metadata

Field	Value
Publication number	US-2016166338-A1
Application number	US-201615049820-A
Country	US
Kind code	A1
Filing date	Feb 22, 2016
Priority date	Nov 6, 2007
Publication date	Jun 16, 2016
Grant date	—

Abstract

A system for tracking a navigated instrument. The system can include a first elongated instrument and a second elongated instrument. The first elongated instrument can have a first proximal end and a first distal end. The first elongated instrument can be adapted to be positioned relative to an anatomy. The second elongated instrument can move adjacent to the first elongated instrument. The second elongated instrument can have a second proximal end and a second distal end. The system can also include at least one tracking device coupled to the second elongated instrument. When the second elongated instrument is in a first position, the at least one tracking device tracks the first distal end of the first elongated instrument, and when the second elongated instrument is in a second position, the at least one tracking device tracks the second distal end of the second elongated instrument.

First claim

What is claimed is:

1 . A system comprising:
a first elongated guide defining a first bore extending from a first proximal end to a first distal end; a second elongated sleeve defining a second bore extending from a second proximal end to a second distal end, the second elongated sleeve configured to be movably positioned within the first bore; a drill bit having a third proximal end and a third distal tip, the drill bit configured to be movably received in the second bore; and at least one first tracking device coupled to the second proximal end of the second elongated sleeve;
wherein the at least one first tracking device is configured to indicate a position of the first distal end of the first elongated guide when the second elongated sleeve is in a first physical position relative to the first elongated guide;
wherein the at least one first tracking device is configured to indicate a position of the third distal tip of the drill bit when the second elongated sleeve is in a second physical position relative to the first elongated guide;
wherein the at least one first tracking device indicates a position of whichever is the most distal of either the first distal end of the first elongated guide or the third distal tip of the drill bit.

2 . The system of claim 1 , wherein the at least one tracking device is at least one optical tracking device configured to track at least one degree of freedom information.

3 . The system of claim 2 , wherein the at least one optical tracking device comprises an array of optical tracking devices configured to track at least three degrees of freedom information.

4 . The system of claim 1 , wherein the at least one tracking device is at least one electromagnetic tracking device configured to track at least one degree of freedom information.

5 . The system of claim 4 , wherein the at least one electromagnetic tracking device is an array of electromagnetic tracking devices configured to track at least three degrees of freedom information.

6 . The system of claim 1 , wherein the at least one first tracking device is configured to provide position and orientation information.

7 . The system of claim 1 , wherein a distance D 1 from the first physical position to the second physical position that the second elongated sleeve moves corresponds to a distance D 2 that the third distal tip of the drill bit extends beyond the first distal end of the first elongated guide.

8 . The system of claim 1 , further comprising at least one second tracking device coupled to the first proximal end of the first elongated guide.

9 . The system of claim 8 , wherein the at least one second tracking device is configured to provide an orientation of the first elongated guide and the at least one first tracking device is configured to provide a depth of the drill bit relative to the first elongated guide.

10 . The system of claim 1 , wherein the first elongated guide defines an elongated slot and the at least one first tracking device extends out of the elongated slot to be viewable in the first physical position and the second physical position.

11 . The system of claim 1 , further comprising:
a tracking system configured to track at least the one first tracking device; and a navigation system that determines a position of the first distal end of the first elongated guide and the third distal tip of the drill bit based on the at least one tracking device.

12 . The system of claim 1 , further comprising a drill to drive the drill bit.

13 . The system of claim 10 , wherein the at least one first tracking device comprises an electromagnetic triaxial coil configured to extend from the elongated slot.

14 . A system comprising:
a first elongated guide defining a first bore extending from a first proximal end to a first distal end, the first elongated guide defining an elongated slot extending through a side wall of the guide from the first proximal end toward the first distal end; a second elongated sleeve defining a second bore extending from a second proximal end to a second distal end, the second elongated sleeve configured to be movably positioned in the first bore; an elongated instrument having a third proximal end and a third distal tip, the elongated instrument configured to be movably received in the second bore; and at least one first tracking device coupled to the second proximal end of the second elongated sleeve and extending out the elongated slot defined in the first elongated guide;
wherein the at least one first tracking device is configured to indicate a position of whichever is the most distal of either the first distal end of the first elongated guide or the third distal tip of the elongated instrument.

15 . The system of claim 14 , wherein the at least one first tracking device is at least one optical tracking device configured to track at least one degree of freedom information.

16 . The system of claim 14 , wherein the at least one first tracking device is configured to indicate a position of the first distal end of the first elongated guide when the at least one first tracking device is in a first physical position relative to the elongated slot, and wherein the at least one first tracking device is configured to indicate a position of the third distal tip of the elongated instrument when the at least one first tracking device is in a second physical position relative to the elongated slot.

17 . The system of claim 14 , wherein the elongated instrument is a drill bit having a drill bit tip at the third distal tip.

18 . The system of claim 16 , wherein a distance D 1 between the first physical position and the second physical position corresponds to a distance D 2 that the third distal tip extends from the first distal end.

19 . The system of claim 18 , further comprising at least one second tracking device coupled to the first proximal end of the first elongated guide, the at least one second tracking device configured to provide an orientation of the first elongated guide and the at least one first tracking device configured to provide a depth of the elongated instrument relative to the first elongated guide.

20 . A system comprising:
a first elongated guide defining a first bore extending from a first proximal end to a first distal end, the first elongated guide defining an elongated slot extending from a first proximal end toward the first distal end; at least one first tracking device coupled to the first proximal end of the first elongated guide; a second elongated sleeve defining a second bore extending from a second proximal end to a second distal end, the second elongated sleeve configured to be movably positioned in the first bore; at least one second tracking device coupled to the second proximal end of the second elongated sleeve and configured to extend from the elongated slot of the first elongated guide; and a third elongated instrument having a third proximal end and a third distal tip, the third elongated instrument configured to be movably received in the second bore;
wherein the at least one first tracking device is configured to provide an orientation of the first elongated guide;
wherein the at least one second tracking device is configured to indicate a position of whichever is the most distal of either the first distal end of the first elongated guide or the third distal tip of the third elongated instrument.

Assignees

• Medtronic Navigation Inc

Inventors

• Hartmann Steven L
• Hughes Joel S
• Moctezuma Joseph
• Verard Laurent

Classifications

• A61B90/36

  Image-producing devices or illumination devices not otherwise provided for · CPC title

• A61B34/20 Primary

  Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis · CPC title

• A61B17/1703

  using imaging means, e.g. by X-rays · CPC title

• A61B2034/2055

  Optical tracking systems · CPC title

• A61B90/11

  with guides for needles or instruments, e.g. arcuate slides or ball joints · CPC title