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Composite Metal and Bone Orthopedic Fixation Devices

a technology of orthopedic fixation devices and metals, applied in the direction of osteosynthesis devices, ligaments, prostheses, etc., can solve the problems of inability to fully integrate the metallic the interface between the metallic device and the surrounding bone is relatively non-flexible and unyielding, and the fracture of the bone remains a devastating problem, etc., to facilitate the healing of fractured bones and enhance the bio-integration of the device with the surrounding bone tissue

Inactive Publication Date: 2016-01-07
STC UNM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes innovative orthopedic fixation devices and methods made of composite materials that provide strength and load-carrying capabilities. These devices can also be implanted with a radiofrequency stimulation capability to enhance bone growth and fusion. The method involves providing a central reservoir with a supply of precursor bone material, migrating the material onto the device, and transforming it into a continuous, consolidated layer of solid, living bone tissue that can bond to a patient's pre-existing bone structure, thereby enhancing bio-integration of the device.

Problems solved by technology

However, there are many complications associated with placement of screws within the lumbar and thoracic spine, as well as the entire spinal axis.
Infection continues to be a devastating problem post-operatively in patients with spinal instrumentation and fusion.
However, due to the irregularity of bone anatomy, it was unlikely that once the screws had been implanted into the spine pedicles that the transverse holes in their heads would be properly aligned for rod insertion.
While the use of such rigid materials provides sufficient strength and load-carrying capabilities to avoid fractures or breakage, the interface between the metallic device and the surrounding bone is relatively non-flexible and unyielding.
While bone is quite strong in compressive loading, it is relatively weak in tension and shear.

Method used

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  • Composite Metal and Bone Orthopedic Fixation Devices
  • Composite Metal and Bone Orthopedic Fixation Devices
  • Composite Metal and Bone Orthopedic Fixation Devices

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Abbreviations and Definitions

[0065]To facilitate understanding of the invention, a number of terms and abbreviations as used herein are defined below as follows:

[0066]When introducing elements of the present invention or the preferred embodiment(s) thereof, the articles “a”, “an”, “the” and “said” are intended to mean that there are one or more of the elements. The terms “comprising”, “including” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements.

[0067]The term “and / or” when used in a list of two or more items, means that any one of the listed items can be employed by itself or in combination with any one or more of the listed items. For example, the expression “A and / or B” is intended to mean either or both of A and B, i.e. A alone, B alone, or A and B in combination. The expression “A, B and / or C” is intended to mean: A alone, B alone, C alone, A and B in combination, A and C in combination, B and C in combinatio...

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Abstract

Composite orthopedic devices that facilitate spine stabilization, such as: bone screws, rods, plates, interbodies, and corpectomy cages are disclosed. They are designed to provide both strength and load carrying capabilities, while increasing bio-integration of the devices with the surrounding bone tissue. They are constructed of composite layers of allograft and / or autograft bone and a structural material, such as titanium alloy or carbon / graphite fiber composite. Cannulations within the device are loaded with a mixture of stem cells, particles of allograft and / or autograft bone, and bone growth factors, such as BMP-2. The cannulations are connected to the surface of the device via multiple fenestrations that provide pathways to supply the bone / stem cell mixture to the surface, allowing living bone tissue to grow and insure bio-integration. The devices can also have radiofrequency (RF) stimulation implantation within the structure of the implanted device, capable of responding to external RF stimulation of enhanced bone growth.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of US Provisional Patent Application by Paul E. Kaloostian, Ser. No. 61 / 660,133, “Device for Guiding and / or Forming a Hole in Bone Tissue and Methods of Use”, filed Jun. 15, 2012; and also US Provisional Patent Application by Paul E. Kaloostian, Ser. No. 61 / 660,107, “Orthopedic Devices and Methods of Use”, filed Jun. 15, 2012; both of which are incorporated herein by reference.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not Applicable.THE NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT[0003]Not Applicable.INCORPORATION-BY-REFERENCE OF MATERIAL SUBMITTED ON A COMPACT DISC[0004]Not Applicable.BACKGROUND OF THE INVENTION[0005]1. Field of the Invention[0006]The present invention relates generally to orthopedic fixation devices, fasteners, and implants that are used in orthopedic surgery, neurosurgery, plastic surgery, hand surgery, foot and ankle surgery, and Ear-Nose-Throat (ENT...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B17/86A61B17/70
CPCA61B17/864A61B17/8625A61B17/866A61B17/7035A61B17/8615A61B17/7002A61B17/8685A61B17/702A61B17/7037A61B17/7098A61B17/80A61B17/8841A61F2/44A61F2002/2835A61F2002/30405A61F2002/3055A61F2002/30601A61F2002/30784A61F2002/30787A61F2310/00023A61F2310/00359A61F2310/00958A61F2310/0097A61B17/68A61B17/8605A61B2017/00933A61B2017/00964
Inventor KALOOSTIAN, PAUL, E.
Owner STC UNM
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