Method And Apparatus For Cannula Fixation For An Array Insertion Tube Set

• US 20090264899A1
• Filed: 04/17/2008
• Published: 10/22/2009
• Est. Priority Date: 04/17/2008
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Appenrodt, Peter, van Venrooij, Paulus Cornelis
• Granted Patent: US 9,345,875 B2
• Time in Patent Office: Days
• US Class Current: 606/130
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/3407 including a base for support on the body
• CPC Class Codes: A61B 2017/3409 including needle or instrument drives
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61B 2090/062 penetration depth
• 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 90/14 Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
• CPC Class Codes: A61N 1/0529 Electrodes for brain stimulation
• CPC Class Codes: A61N 1/0534 Electrodes for deep brain stimulation
• CPC Class Codes: A61N 1/0539 Anchoring of brain electrode systems, e.g. within burr hole

Abstract

An instrument holding system for a drive system is provided. The system can include an array holder that defines at least one bore for receipt of an instrument therethrough. The at least one instrument can be adapted for insertion into an anatomy. The array holder can be in communication with the drive system to receive a driving force. The system can include a fixation plate operable to move relative to the array holder such that the fixation plate is in contact with at least a portion of the at least one instrument to couple the at least one instrument to the array holder to enable the at least one instrument to be driven by the driving force into the anatomy.

Claims

1. An instrument holding system for a drive system comprising:

an array holder that defines at least one bore for receipt of an instrument therethrough, the at least one instrument adapted for insertion into an anatomy, the array holder in communication with the drive system to receive a driving force; and

a fixation plate operable to move relative to the array holder such that the fixation plate is in contact with at least a portion of the at least one instrument to couple the at least one instrument to the array holder to enable the at least one instrument to be driven by the driving force into the anatomy.

2. The system of claim 1, wherein the array holder is coupled to a support of the drive system, and the drive system is coupled to a guide device, which is operable to direct the at least one instrument into the anatomy.

3. The system of claim 2, wherein the guide device comprises at least one of a stereotatic head frame, a small-scale head frame, a navigation system, or combinations thereof.

4. The system of claim 2, wherein the at least one instrument comprises at least one electrode, with the at least one electrode including an insertion cannula that defines a bore for receipt of a macroelectrode therethrough, and the macroelectrode defines a bore for receipt of a microelectrode therethrough.

5. The system of claim 4, wherein the array holder further comprises:

a fixation block that defines at least one bore for the at least one electrode; and

a guide member coupled to the fixation block and the support, the guide member defining at least one bore for the at least one electrode, the at least one bore of the guide member aligned with the at least one bore of the fixation block to enable the at least one electrode to pass through the fixation block and the guide member.

6. The system of claim 5, wherein the fixation block includes a first side, a second side, a third side and a fourth side, with the first side opposite the third side, the second side opposite the fourth side, and at least one of the second side and the fourth side defining a mating feature operable to movably couple the fixation plate to the fixation block.

7. The system of claim 6, wherein the fixation plate includes a first side, a second side, a third side and a fourth side, with the first side opposite the third side, the second side opposite the fourth side, and the second side defines at least one slot through the fixation plate to enable at least a portion of the macroelectrode of the at least one electrode to pass through the fixation plate.

8. The system of claim 7, wherein at least one of the first side and third side of the fixation plate define a corresponding mating feature that slideably engages the mating feature of the fixation block to enable the fixation plate to move relative to the fixation block between a first position and a second position.

9. The system of claim 8, wherein the at least one bore of the fixation block is defined in a first end of the fixation block such that in the first position, the fixation plate is disposed over a second end of the fixation block to enable the insertion of the at least one electrode into the at least one bore, and in the second position, the fixation plate is disposed over the first end of the fixation block to couple at least one electrode to the array holder.

10. The system of claim 9, wherein in the second position, the fixation plate is in contact with at least a portion of a depth stop of the insertion cannula of the at least one electrode.

11. The system of claim 9, wherein in the second position, the fixation plate is in contact with at least a portion of a depth stop of the macroelectrode of the at least one electrode.

12. The system of claim 6, wherein the mating feature of the fixation block is at least one of a groove, notch, slot, indentation, dovetail, or combinations thereof.

13. The system of claim 5, wherein the support includes at least one rail disposed adjacent to the fixation block, and the fixation plate includes a first side, a second side, a third side and a fourth side, with the first side opposite the third side, the second side opposite the fourth side, the second side defines at least one slot through the fixation plate to enable at least a portion of the macroelectrode of the at least one electrode to pass through the fixation plate, and at least one of the first side and the third side define a throughbore to enable the fixation plate to move relative to the fixation block to couple the at least one electrode to the array holder.

14. The system of claim 5, wherein the support further comprises a base that includes at least one post that defines a slot, the at least one post disposed adjacent to the fixation block, and the fixation plate includes a first surface, a second surface and at least one slot through the fixation plate to enable at least a portion of the macroelectrode of the at least one electrode to pass through the fixation plate, and the fixation plate is moveable from a first position to a second position in which the fixation plate is received within the slot of the at least one post and the second surface of the fixation plate is adjacent to a depth stop of the insertion cannula of the at least one electrode to couple the at least one electrode to the array holder.

15. The system of claim 14, wherein the support includes a flange, which defines a slot, and the fixation plate is retained within the slot of the flange in the second position.

16. The system of claim 4, wherein the array holder further comprises:

a fixation base that defines at least one bore for the at least one electrode, the fixation base including a first side wall parallel to a second side wall, each of the first side wall and the second side wall defining at least one slot; and

a guide member coupled to the base and the support, the guide member defining at least one bore for the at least one electrode, the at least one bore of the guide member aligned with the at least one bore of the base to enable the at least one electrode to pass through the base and the guide member.

17. The system of claim 16, wherein the fixation plate includes a first surface, a second surface and at least one slot through the fixation plate to enable at least a portion of the macroelectrode of the at least one electrode to pass through the fixation plate, the fixation plate moveable from a first position to a second position in which the fixation plate is received within the at least one slot of the first side wall and second side wall, and the second surface of the fixation plate is adjacent to a depth stop of the insertion cannula of the at least one electrode to couple the at least one electrode to the array holder.

18. The system of claim 2, further comprising:

at least one tracking device coupled to at least one of the guide device and the drive system; and

a navigation system that tracks the at least one tracking device relative to the anatomy during a surgical procedure.

19. An instrument holding system for a drive system comprising:

a support coupled to the drive system that receives a driving force from the drive system;

a fixation block that defines at least one bore for receipt of at least one electrode therethrough, the fixation block having a first side opposite a second side, the first side and the second side each defining a mating feature;

a guide member coupled to the fixation block, the guide member defining at least one bore for receipt of the at least one electrode therethrough, the at least one bore of the guide member aligned with the at least one bore of the fixation block to enable the at least one electrode to pass through the fixation block and the guide member, the guide member coupled to the support to receive the driving force;

a fixation plate having a first side and a second side that each define a corresponding mating feature that is operable to slideably engage the mating feature of the fixation block to enable the fixation plate to move relative to the fixation block between a first position and a second position; and

wherein, in the second position, the fixation plate is in contact with at least a portion of a surface of the at least one electrode to couple the at least one electrode to the support such that on receipt of the driving force, at least a portion of the at least one electrode can move relative to an anatomy.

20. The system of claim 19, wherein the at least one electrode further comprises at least one cannula.

21. The system of claim 19, wherein the at least one electrode further comprises at least one cannula and at least one microelectrode, with the microelectrode received within a bore defined in the at least one cannula.

22. The system of claim 19, wherein the at least one electrode further comprises at least one cannula, at least one macroelectrode and at least one microelectrode, with the macroelectrode received within a bore defined in the at least one cannula, and the microelectrode received within a bore defined in the at least one macroelectrode.

23. A method of coupling an instrument to a drive system comprising:

coupling an array holder to the drive system;

inserting at least one electrode into at least one bore defined in the array holder;

positioning at fixation plate relative to the array holder; and

moving the fixation plate relative to the array holder from a first position to a second position such that the fixation plate is in contact with at least a portion of a depth stop of the at least one electrode.

24. The method of claim 23, wherein inserting the at least one electrode into the at least one bore further comprises:

inserting the at least one electrode into at least one bore defined in a fixation block; and

inserting the at least one electrode into at least one bore defined in a guide member, the guide member coupled to the fixation block and the drive system.

25. The method of claim 24, wherein inserting the at least one electrode into the at least one bore further comprises:

inserting a plurality of electrodes into a plurality of bores defined in the fixation block and the guide member.

26. The method of claim 25, wherein moving the fixation plate further comprises:

sliding the fixation plate over the fixation block from the first position to the second position such that the fixation plate is in contact with at least a depth stop of each of the plurality of electrodes.

27. The method of claim 23, further comprising:

coupling the drive system to a guide system; and

tracking at least one of the drive system, the guide system or combinations thereof with a navigation system.

28. The method of claim 27, further comprising:

capturing an image of at least one of the drive system, the guide system, the at least one electrode or combinations thereof with an imaging device; and

navigating at least one of the drive system, the guide system, the at least one electrode or combinations thereof with the navigation system based on the captured image.