Devices and methods for vertebrostenting

• US 10,603,051 B2
• Filed: 01/03/2017
• Issued: 03/31/2020
• Est. Priority Date: 12/15/2006
• Status: Active Grant

• Current Assignee: Globus Medical, Inc.
• Original Assignee: Globus Medical, Inc.
• Inventors: Crainich, Lawrence, Sennett, Andrew R., Trabka, Joseph
• Primary Examiner(s): Lawson, Matthew J
• Application Number:
  US15/396,957
• Publication Number:
  US 20170112507A1
• Time in Patent Office: 1,183 Days
• Field of Search: 606 79- 86 R, 606167-169, 606171, 606172, 606175, 600139-152
• CPC Class Codes: A61B 17/16 Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans arthroscopic bone cutters A61B17/320016; dental implant drills potentially for other surgical use A61C8/0089; bone grinders A61F2/4644, A22C17/06; A61B17/1662 takes precedence over all other subgroups except A61B17/17
• CPC Class Codes: A61B 17/1617 with mobile or detachable parts
• CPC Class Codes: A61B 17/1637 Hollow drills or saws producing a curved cut, e.g. cylindrical A61B10/025, A61B17/1695 take precedence
• CPC Class Codes: A61B 17/1642 for producing a curved bore
• CPC Class Codes: A61B 17/1671 for the spine
• CPC Class Codes: A61B 17/88 Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices A61B17/7074 takes precedence
• CPC Class Codes: A61B 17/8805 for introducing fluid filler into bone or extracting it A61B17/7097, A61B17/8833 take precedence
• CPC Class Codes: A61B 17/8808 with sealing collar for bone cavity
• CPC Class Codes: A61B 17/8816 characterised by the conduit, e.g. tube, along which fluid flows into the body or by conduit connections
• CPC Class Codes: A61B 17/8822 characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
• CPC Class Codes: A61B 17/885 Tools for expanding or compacting bones or discs or cavities therein A61B17/8805, A61B17/7097 take precedence
• CPC Class Codes: A61B 17/8858 laterally or radially expansible inflatable A61B17/8855

Abstract

The invention provides a method for creating a curvilinear void created in a bony structure. The method includes inserting a distal end of a reamer device through a cannula and into a curvilinear void created in a bony structure, the reamer device having a flexible reamer shaft assembly which includes (i) a pivotable reaming element at a distal end thereof, and (ii) a mechanism for pivoting adjustably the reaming element. The method also includes deploying the reaming element within the curvilinear void and manipulating the reaming element to enlarge the curvilinear void.

Claims

1. An apparatus for forming a curvilinear void in bony structure comprising:

a handle; and

a flexible drill shaft assembly having a longitudinal axis and extending from a distal end of the handle, comprising;

a cutting tip located at a distal end of the flexible drill shaft assembly;

a flexible rotatable drive shaft coupled to the tip; and

a flexible, moveable and non-rotatable housing;

an inner cable extending through the flexible rotatable drive shaft and the cutting tip,

wherein the inner cable is used to tilt or open the cutting tip from a neutral position aligned with the longitudinal axis of the shaft to a deployed position at an angle to the longitudinal axis of the shaft, and

wherein the cutting tip is pivotable with respect to the flexible rotatable drive shaft about a pivot pin coupled to a yoke mounted at a distal end of the flexible rotatable drive shaft.

2. The apparatus of claim 1, wherein the cutting tip is adapted to form the curvilinear void by simultaneous rotation and curvilinear translation of the cutting tip.

3. The apparatus of claim 1, wherein the flexible drill shaft assembly is adapted to form a curvature at a distal end thereof.

4. The apparatus of claim 3 further comprising a lever and cam sub assembly for varying a force used to apply the curvature.

5. The apparatus of claim 4, wherein the lever has a first position at which the force is less than at a second position of the lever.

6. An apparatus for enlarging a curvilinear void created in a bony structure comprising:

a handle; and

a flexible drill shaft assembly having a longitudinal axis and extending from a distal end of the handle, comprising;

a pivotable reaming blade located at a distal end of the flexible drill shaft assembly;

a flexible rotatable drive shaft coupled to the tip; and

a flexible, moveable and non-rotatable housing,

an inner cable extending through the flexible rotatable drive shaft and the cutting tip,

wherein the inner cable is used to tilt or open the cutting tip from a neutral position aligned with the longitudinal axis of the shaft to a deployed position at an angle to the longitudinal axis of the shaft, and

wherein the cutting tip is pivotable with respect to the flexible rotatable drive shaft about a pivot pin coupled to a yoke mounted at a distal end of the flexible rotatable drive shaft.

7. The apparatus of claim 6, wherein the reaming blade is adapted to pivot from a first position to a second position.

8. The apparatus of claim 6, wherein the reaming blade is adapted to form the curvilinear void by simultaneous rotation and curvilinear translation of the reaming blade.