Instrument Guide System

• US 20100305580A1
• Filed: 08/16/2010
• Published: 12/02/2010
• Est. Priority Date: 04/20/1999
• Status: Active Grant

• Current Assignee: Medtronic Navigation Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Navigation Incorporated (Medtronic Plc)
• Inventors: Carroll, Catalina J., Clayton, John B., Henderson, Jaimie, Bucholz, Richard D., Smith, Kurt R., Frank, Kevin J., Ulberg, Phillip T.
• Granted Patent: US 8,845,655 B2
• Time in Patent Office: Days
• US Class Current: 606/130
• CPC Class Codes: A61B 2034/107 Visualisation of planned trajectories or target regions
• CPC Class Codes: A61B 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2034/2072 Reference field transducer attached to an instrument or patient
• CPC Class Codes: A61B 2034/256 having a database of accessory information, e.g. including context sensitive help or scientific articles
• CPC Class Codes: A61B 2090/3983 Reference marker arrangements for use with image guided surgery
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints
• CPC Class Codes: A61B 90/36 Image-producing devices or illumination devices not otherwise provided for

Abstract

A system is provided to align a surgical guide instrument over a burr hole in a patient'"'"'s body. Adjustments of a surgical instrument can be made in x, y, z, and angular directions using the system. An instrument guide unit can include an instrument guide for guiding a surgical instrument into the body of a patient and a base unit operative to be secured to the body near an area in which surgery is to occur. The base unit is coupled to the instrument guide. An adjustment mechanism, coupled to the base unit and the instrument guide, is operative to adjust the instrument guide in lateral directions with respect the surface of the area.

Claims

1. An instrument guide system operable to be fixed to a head, including a skull, of a patient, comprising:

a guide member having an internal wall defining a guide passage;

a base configured to be fixed directly to and contacting the head of the patient defining a central opening positionable to surround a burr hole in the skull of the patient where the guide passage extends through the central opening; and

a mini-reference position frame operable to be fixed directly to the base and having a tracking device;

wherein the mini-reference position frame is operable to establish reference coordinates for the skull of the patient.

2. The instrument guide system of claim 1, wherein the tracking device includes a light emitting diode operable to be detected by a camera.

3. The instrument guide system of claim 1, wherein the mini-reference position frame is the only reference frame to establish and maintain reference coordinates for the skull of the patient.

4. The instrument guide system of claim 1, wherein the base is carried solely on the head of the patient.

5. The instrument guide system of claim 4, further comprising:

a first translation base operable to move the guide passage in a first direction; and

a second translation base operable to move the guide passage in a second direction;

wherein the mini-reference position frame maintains the reference coordinates for the skull of the patient as the first translation base and the second translation base move relative to the base.

6. The instrument guide system of claim 5, wherein the first direction is substantially orthogonal to the second direction.

7. The instrument guide system of claim 5, wherein the mini-reference position frame is removably fixable directly to the base.