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02/28/08 - USPTO Class 623 |  52 views | #20080051899 | Prev - Next | About this Page  623 rss/xml feed  monitor keywords

Interspinous process implants and methods of use

USPTO Application #: 20080051899
Title: Interspinous process implants and methods of use
Abstract: Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a first wing, a spacer extending from the first wing, and a distraction guide. The distraction guide is arranged in a first configuration to pierce and/or distract tissue associated with adjacent spinous processes extending from vertebrae of a targeted motion segment. The implant can be positioned between the adjacent spinous processes and once positioned, the implant can be arranged in a second configuration. When arranged in a second configuration, the distraction guide can act as a second wing. The first wing and the second wing can limit or block movement of the implant along a longitudinal axis of the implant. (end of abstract)



Agent: Cooley Godward Kronish LLP Attn: Patent Group - Washington, DC, US
Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
USPTO Applicaton #: 20080051899 - Class: 623017160 (USPTO)

Related Patent Categories: Prosthesis (i.e., Artificial Body Members), Parts Thereof, Or Aids And Accessories Therefor, Implantable Prosthesis, Bone, Spine Bone, Including Spinal Disc Spacer Between Adjacent Spine Bones

Interspinous process implants and methods of use description/claims


The Patent Description & Claims data below is from USPTO Patent Application 20080051899, Interspinous process implants and methods of use.

Brief Patent Description - Full Patent Description - Patent Application Claims
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CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation of each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179), each entitled "Interspinous Process Implants and Methods of Use," and filed May 31, 2007; each of which is incorporated herein by reference in its entirety.

[0002] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 10/694,103, entitled "Interspinous Process Implant with Radiolucent Spacer and Lead-in Tissue Expander," filed Oct. 27, 2003, which claims priority to U.S. Provisional Application Ser. No. 60/421,915, entitled "Interspinous Process Implant with Radiolucent Spacer and Lead-in Tissue Expander," filed Oct. 29, 2002; each of which is incorporated herein by reference in its entirety.

[0003] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/234,555, entitled "Interspinous Process Implant and Method of Implantation," filed Sep. 23, 2005, which claims priority to U.S. Provisional Application Ser. No. 60/612,582, entitled "Interspinous Process Implant and Method of Implantation," filed Sep. 23, 2004 and which is a continuation-in-part of U.S. patent application Ser. No. 10/850,267, entitled "Distractible Interspinous Process Implant and Method of Implantation," filed May 20, 2004, which claims priority to U.S. Provisional Application Ser. No. 60/472,817, entitled "Cervical Interspinous Process Implant and Method of Implantation," filed May 22, 2003; each of which is incorporated herein by reference in its entirety.

[0004] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/378,893, entitled "Interspinous Process Implant with Slide-in Distraction Piece and Method of Implantation," filed Mar. 17, 2006, which claims priority to U.S. Provisional Application Ser. No. 60/664,311, entitled "Interspinous Process Implant with Slide-in Distraction Piece and Method of Implantation," filed Mar. 22, 2005 and which is a continuation-in-part of U.S. patent application Ser. No. 10/850,267, entitled "Distractible Interspinous Process Implant and Method of Implantation," filed May 20, 2004, which claims priority to U.S. Provisional Application Ser. No. 60/472,817, entitled "Cervical Interspinous Process Implant and Method of Implantation," filed May 22, 2003; each of which is incorporated herein by reference in its entirety.

[0005] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/384,055, entitled "Interspinous Process Implant with Slide-in Distraction Piece and Method of Implantation," filed Mar. 17, 2006, which claims priority to U.S. Provisional Application Ser. No. 60/664,049, entitled "Interspinous Process Implant with Slide-in Distraction Piece and Method of Implantation," filed Mar. 22, 2005 and which is a continuation-in-part of U.S. patent application Ser. No. 10/850,267, entitled "Distractible Interspinous Process Implant and Method of Implantation," filed May 20, 2004, which claims priority to U.S. Provisional Application Ser. No. 60/472,817, entitled "Cervical Interspinous Process Implant and Method of Implantation," filed May 22, 2003; each of which is incorporated herein by reference in its entirety.

[0006] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 10/850,267 entitled "Distractible Interspinous Process Implant and Method of Implantation," filed Apr. 1, 2004, which claims priority to U.S. Provisional Application Ser. No. 60/472,817, entitled "Cervical Interspinous Process Implant and Method of Implantation," filed May 22, 2003; each of which is incorporated herein by reference in its entirety.

[0007] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/095,440, entitled "Interspinous Process Implant Including a Binder and Method of Implantation," filed Mar. 31, 2005, which claims priority to U.S. Provisional Application Ser. No. 60/612,465, entitled "Interspinous Process Implant Including a Binder and Method of Implantation," filed Sep. 23, 2004; each of which is incorporated herein by reference in its entirety.

[0008] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/095,680, entitled "Interspinous Process Implant Including a Binder and Method of Implantation," filed Mar. 31, 2005, which claims priority to U.S. Provisional Application Ser. No. 60/612,465, entitled "Interspinous Process Implant Including a Binder and Method of Implantation," filed Sep. 23, 2004; each of which is incorporated herein by reference in its entirety.

[0009] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/378,108, entitled "Interspinous Process Implant Having Deployable Wing and Method of Implantation," filed Mar. 17, 2006, which claims priority to U.S. Provisional Application Ser. No. 60/663,918, entitled "Interspinous Process Implant Having Deployable Wing and Method of Implantation," filed Mar. 21, 2005; each of which is incorporated herein by reference in its entirety.

[0010] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/377,971, entitled "Interspinous Process Implant Having Deployable Wing and Method of Implantation," filed Mar. 17, 2006, which claims priority to U.S. Provisional Application Ser. No. 60/663,885, entitled "Interspinous Process Implant Having Deployable Wing and Method of Implantation," filed Mar. 21, 2005; each of which is incorporated herein by reference in its entirety.

[0011] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/378,894, entitled "Interspinous Process Implant Having Deployable Wing and Method of Implantation," filed Mar. 17, 2006, which claims priority to U.S. Provisional Application Ser. No. 60/664,076, entitled "Interspinous Process Implant Having Deployable Wing and Method of Implantation," filed Mar. 22, 2005; each of which is incorporated herein by reference in its entirety.

[0012] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/389,002, entitled "Interspinous Process Implant Having Deployable Wings and Method of Implantation," filed Mar. 24, 2006, which claims priority to U.S. Provisional Application Ser. No. 60/672,402, entitled "Interspinous Process Implant Having Deployable Wings and Method of Implantation," filed Apr. 18, 2005; each of which is incorporated herein by reference in its entirety.

[0013] Each of U.S. patent application Ser. No. 11/806,528 (Attorney Docket No. KYPH-038/15US 305363-2175) and Ser. No. 11/806,526 (Attorney Docket No. KYPH-038/18US 305363-2179) is a continuation-in-part of U.S. patent application Ser. No. 11/378,892, entitled "Interspinous Process Implant Having A Thread-Shaped Wing and Method of Implantation," filed Mar. 17, 2006, which claims priority to U.S. Provisional Application Ser. No. 60/663,922, entitled "Interspinous Process Implant Having Deployable Wings and Method of Implantation," filed Mar. 21, 2005; each of which is incorporated herein by reference in its entirety.

BACKGROUND

[0014] The spinal column is a bio-mechanical structure composed primarily of ligaments, muscles, vertebrae and intervertebral disks. The bio-mechanical functions of the spine include: (1) support of the body, which involves the transfer of the weight and the bending movements of the head, trunk and arms to the pelvis and legs, (2) complex physiological motion between these parts, and (3) protection of the spinal cord and the nerve roots.

[0015] As the present society ages, it is anticipated that there will be an increase in adverse spinal conditions which are characteristic of older people. By way of example only, with aging comes an increase in spinal stenosis (including, but not limited to, central canal and lateral stenosis), and facet arthropathy. Spinal stenosis results in a reduction foraminal area {i.e., the available space for the passage of nerves and blood vessels) which compresses the cervical nerve roots and causes radicular pain. Humpreys, S. C. et al, Flexion and traction effect on C5-C6 foraminal space, Arch. Phys. Med. Rehabil., vol. 79 at 1105 (September 1998). Another symptom of spinal stenosis is myelopathy, which results in neck pain and muscle weakness. Id. Extension and ipsilateral rotation of the neck further reduces the foraminal area and contributes to pain, nerve root compression and neural injury. Id.; Yoo, J. U. et al., Effect of cervical spine motion on the neuroforaminal dimensions of human cervical spine, Spine, vol. 17 at 1131 (Nov. 10, 1992). In contrast, neck flexion increases the foraminal area. Humpreys, S. C. et al, at 1105.

[0016] Pain associated with stenosis can be relieved by medication and/or surgery. It is desirable to eliminate the need for major surgery for all individuals, and in particular, for the elderly.

[0017] Accordingly, a need exists to develop spine implants that alleviate pain caused by spinal stenosis and other such conditions caused by damage to, or degeneration of, the spine. Such implants would distract, or increase the space between, the vertebrae to increase the foraminal area and reduce pressure on the nerves and blood vessels of the spine. A further need exists for development of a minimally invasive surgical implantation method for spine implants that preserves the physiology of the spine.

[0018] Further, a need exists for an implant that accommodates the distinct anatomical structures of the spine, minimizes further trauma to the spine, and obviates the need for invasive methods of surgical implantation. Additionally, a need exists to address adverse spinal conditions that are exacerbated by spinal extension and/or flexion.

SUMMARY

[0019] Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a first wing, a spacer extending from the first wing, and a distraction guide. The distraction guide is arranged in a first configuration to pierce and/or distract tissue associated with adjacent spinous processes extending from vertebrae of a targeted motion segment. The implant can be positioned between the adjacent spinous processes and once positioned, the implant can be arranged in a second configuration. When arranged in a second configuration, the distraction guide can act as a second wing. The first wing and the second wing can limit or block movement of the implant along a longitudinal axis of the implant.

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIGS. 1a-1f. FIG. 1a is a front plan view of an embodiment of an assembled implant of the invention; FIG. 1b is a left side view of the embodiment of the invention of FIG. 1a; FIG. 1e is a front plan view of the embodiment of the invention of FIG. 1a including a spacer, a main body and a first wing; FIG. 1d is a left side view of the second wing of the embodiment of the invention of FIG. 1a; FIG. 1e is a front plan view of the second wing of the embodiment of the invention of FIG. 1a; FIG. 1f is an end view of the spacer of the embodiment of the invention of FIG. 1a.

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Interspinous process implants and methods of use
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Modular intervertebral disc prosthesis and method of replacing an intervertebral disc
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