Christopher W Sicvol

US Patent:

7081117, Jul 25, 2006

Filed:

Apr 20, 2004

Appl. No.:

10/828508

Inventors:

Frank Scott Bono - Rehoboth MA, US
George Joseph Ross - Rehoboth MA, US
Christopher Werner Sicvol - Braintree MA, US
Ian Burgess - Barrington RI, US

Assignee:

DePuy Acromed, Inc. - Raynham MA

International Classification:

A61B 17/56

US Classification:

606 61

Abstract:

An assembly such as an anchor screw, bone plate, offset hook, post, transverse connector or other spinal anchor for anchoring to bone and clamping a linkage such as a rod, wire cable or the like. The assembly has a top member with an open slot to receive the linkage, and a twist-lock closure cap to close the open end, capturing the linkage in the slot. One closure cap fits over and around the top member, with a set of segmented protrusions that extend through a corresponding set of protruding flange segments spaced about the circumference of the top member. The cap is configured to rotate and lock against the top member like a flange-locking bayonet mount when turned through a limited degree of rotation. Slots may be provided through the face of the closure cap allowing reduction tabs to project through the cap, and the locking cap may be adapted to a range of screw, eye, hook, post, connector and other anchor assemblies to securely clamp the linkage by use of a rotation tool disposed along an access path aligned with the axis of the screw, thus requiring no lateral clearance along the longitudinal direction of the linkage element. Locking is effected by a set screw that passes through the cap and tightens against the linkage to firmly immobilize it in the anchor assembly.

US Patent:

7125426, Oct 24, 2006

Filed:

Jun 25, 2003

Appl. No.:

10/606200

Inventors:

Missoum Moumene - Newton MA, US
Ian Burgess - Barrington RI, US
George Joseph Ross - Rehoboth MA, US
Christopher Sicvol - Boston MA, US
Frank Bono - Collierville TN, US

Assignee:

DePuy Spine SARL - Le Locle

International Classification:

A61F 2/30
A61B 17/56

US Classification:

623 2342, 606 61, 606 72, 606 73

Abstract:

A spinal anchor assembly for securing a fixation element includes an anchor element and a twist-in cap. The anchor element is configured for attachment to a bone, typically by comprising a mono- or polyaxial screw or hook, and includes a proximal portion having an open slot for receiving the fixation element and having radially inwardly protruding flange segments. The twist-in cap is received in and closes the open slot. The proximal portion of the anchor and the cap are adapted to twist-lock together by a partial rotation of the cap from an open position to a closed position to cover the slot so as to capture the fixation element and to lock the cap in the closed position.

US Patent:

7179261, Feb 20, 2007

Filed:

Dec 16, 2003

Appl. No.:

10/738286

Inventors:

Christopher W Sicvol - Boston MA, US
Erasmo Lopez - Abington MA, US
Ramon Ruberte - Quincy MA, US

Assignee:

Depuy Spine, Inc. - Raynham MA

International Classification:

A61B 17/56

US Classification:

606 73

Abstract:

A percutaneous access device includes an inner tube and an outer tube disposed about at least a portion of the inner tube. The outer tube may be sized to span from a skin incision in a patient to a site proximate the spine of the patient. The distal end of the outer tube may be adapted to releasably engage a bone anchor. The inner tube may be adjustable relative to the outer tube between a first position and a second position in which the distal end of the inner tube contacts the bone anchor. A bone anchor assembly includes a bone anchor having a distal bone engaging portion and a receiving member having a recess for receiving a spinal fixation element. The proximal end of the receiving member may have an arcuate groove formed on an exterior surface thereof to facilitate connection of an instrument to the receiving member.

US Patent:

7476240, Jan 13, 2009

Filed:

Feb 3, 2005

Appl. No.:

11/051983

Inventors:

Douglas Raymond - Randolph MA, US
James Roveda - Boston MA, US
Brian Murphy - Quincy MA, US
Christopher Sicvol - Boston MA, US
Sean Selover - Westport MA, US
Erasmo Lopez - Abington MA, US
Ramon Ruberte - Ann Arbor MA, US
Bryan S. Jones - West Roxbury MA, US
Christopher Ramsay - West Wareham MA, US

Assignee:

Depuy Spine, Inc. - Raynham MA

International Classification:

A61B 17/88

US Classification:

606279, 606 99

Abstract:

A method for introducing a spinal fixation element between two bone anchors includes engaging a spinal fixation element to a shaft of an instrument, positioning the shaft of the instrument through a sidewall opening of a first percutaneous access device connected to a first bone anchor and through a side wall opening of a second percutaneous access device connected to a second bone anchor, the spinal fixation element extending in an orientation substantially parallel to the longitudinal axis of at least one of the first percutaneous access device and the second percutaneous access device, and pivoting the instrument to change the orientation of the spinal fixation element and position the spinal fixation element in proximity to the first bone anchor and in proximity to the second bone anchor.

US Patent:

7527638, May 5, 2009

Filed:

Dec 16, 2003

Appl. No.:

10/738130

Inventors:

David Greg Anderson - Moorestown NJ, US
Christopher W. Sicvol - Boston MA, US
George Joseph Ross - Rehoboth MA, US
Sean P. Selover - Tiverton RI, US
Ramon Alberto Ruberte - Quincy MA, US

Assignee:

DePuy Spine, Inc. - Raynham MA

International Classification:

A61B 17/88

US Classification:

606279, 606 99, 606914

Abstract:

Minimally invasive methods and devices for introducing a spinal fixation element into a surgical site in a patient's spinal column are provided. In general, the method involves advancing a spinal fixation element in a first, lengthwise orientation along a pathway extending from a minimally invasive percutaneous incision to a spinal anchor site. As the spinal fixation element approaches the spinal anchor site, the fixation element can be manipulated to extend in a second orientation, which is preferably substantially transverse to the first orientation, to position the fixation element in relation to one or more spinal anchors.

US Patent:

7854751, Dec 21, 2010

Filed:

Mar 28, 2007

Appl. No.:

11/692531

Inventors:

Christopher Sicvol - Boston MA, US
Erasmo Lopez - Seattle WA, US
Ramon Ruberte - Ann Arbor MI, US

Assignee:

Dupuy Spine, Inc. - Raynham MA

International Classification:

A61B 17/70

US Classification:

606246, 606 86 A

Abstract:

A percutaneous access device includes an inner tube and an outer tube disposed about at least a portion of the inner tube. The outer tube may be sized to span from a skin incision in a patient to a site proximate the spine of the patient. The distal end of the outer tube may be adapted to releasably engage a bone anchor. The inner tube may be adjustable relative to the outer tube between a first position and a second position in which the distal end of the inner tube contacts the bone anchor. A bone anchor assembly includes a bone anchor having a distal bone engaging portion and a receiving member having a recess for receiving a spinal fixation element. The proximal end of the receiving member may have an arcuate groove formed on an exterior surface thereof to facilitate connection of an instrument to the receiving member.

US Patent:

7967821, Jun 28, 2011

Filed:

Nov 20, 2006

Appl. No.:

11/561497

Inventors:

Christopher Sicvol - Boston MA, US
Shawn D. Stad - Fall River MA, US
Timothy Beardsley - Kingston MA, US
Douglas Bireley - Barrington RI, US
James J. Roveda - North Attleboro MA, US
Anthony R. Carlone - Bristol RI, US

Assignee:

DePuy Spine, Inc. - Raynham MA

International Classification:

A61B 17/70

US Classification:

606 86A, 606264, 606265

Abstract:

The present invention provides minimally invasive devices and methods for delivering a spinal connector to one or more spinal anchor sites in a patient's spinal column. In one embodiment, a spinal implant and access device is provided that includes a U-shaped receiver member, a bone-engaging member, and an extension member. The U-shaped receiver member can have a recess formed therein that is adapted to seat a spinal connector. The bone-engaging member can extend distally from the receiver member and it can be adapted to engage bone to thereby mate the receiver member to bone. The extension member can extend proximally from the receiver member and it can include a frangible portion formed thereon that is adapted to break when a predetermined force is applied thereto thereby allowing at least a portion of the extension member to be separated from the receiver member.

US Patent:

8016835, Sep 13, 2011

Filed:

Jul 31, 2006

Appl. No.:

11/497877

Inventors:

Paul Birkmeyer - Marshfield MA, US
Christopher W. Sicvol - Durham NC, US
Hassan Serhan - South Easton MA, US
Sean Selover - Westport MA, US
Ronald Naughton - Westfield NJ, US
Nancy M. Sheehy - New York NY, US

Assignee:

DePuy Spine, Inc. - Raynham MA

International Classification:

A61B 17/58
A61B 17/60
A61F 2/00

US Classification:

606 97

Abstract:

A system for guiding an implant to an optimal placement within a patient includes a trajectory guide for guiding instruments along a selected trajectory and a trajectory fixation device for fixing the trajectory guide in a selected position. The trajectory guide defines a path configured to align with the selected trajectory. A movable support mounts the trajectory guide and selectively moves the trajectory guide to align the trajectory guide with the selected trajectory prior to fixing the trajectory guide in the selected position. The trajectory is aligned coarsely by hand, then the trajectory is aligned using a fine adjustment system. After fixing the trajectory guide, instruments can be inserted along the trajectory through the path defined by the trajectory guide.