Aegis® External Fixator Pins



In a 2008 study of Titanium alloy pins versus stainless steel pins in external fixation it was discovered that titanium reduced pin-related complications to include a significant reduction in pain levels when compared to stainless steel.

Pin-track complications remain the most troublesome disadvantages of external fixation. Studies have compared pin-related complications and pain levels after the use of external fixation for the stabilization of fractures with pins composed of two different materials. The specific results were significant. The complication rate was 21%, with patient age found to be significantly associated with an increased risk of pin-loosening (p = 0.003) and the rate of premature removal of fixator because of severe pin-track infection (5% vs. 0%). The rate of pin-loosening (10% vs. 5%) was higher in the Ss-pin (stainless steel) group. Furthermore, pain values were significantly reduced in the Ti6Al4V-pin group.

The use of Ti6Al4V-pin (titanium) external fixator yields a trend of reduced pin-related complications and significantly reduced pain levels than does the Ss-pin fixator.

At Umbra Applied Technologies we recognize that external fixation is an essential component of the modern orthopaedic surgeon’s armamentarium and is widely used in traumatic and reconstructive surgery. This treatment modality is almost universal associated with the complication of pin track infection.

These complications can be catastrophic if it leads to the failure of the bone–pin interface and could lead to pin loosening, fracture non-union, sepsis and chronic osteomyelitis. Strategies proposed for the prevention and management of pin track complications are varied and continually evolving.

Prevention of external fixation pin track infection is a complex and ongoing task that requires attention to detail, meticulous surgical technique and constant vigilance.


UAT’s Biotech division has created a product that is the most deliberate evolution of an existing design. A titanium body wrapping a proprietary silver alloy core delineates a singular component of paradigm shifting technology. At UAT we obsess over constantly evolving and looking beyond today so that seeking perfection is the intended purpose that drives groundbreaking discoveries. From sculpting the outer shell and the twin cutting flutes of precise titanium alloy to the innovation of an infection fighting silver core, we have created an elegant and sophisticated design that delivers a singular answer to a complex modality. This refinement of an external fixator pin serves to bring absolute efficiency to a design that until now has been significantly flawed yet redeemed through an expression of uncommon virtuosity.


Aegis® external fixator pins with ASP (Active Silver Protection) are manufactured from Ti6Al4V titanium alloy with chemical composition of 6% aluminum, 4% vanadium, 0.25% (maximum) iron, 0.2% (maximum) oxygen, and more than 89% pure titanium. UAT’s revolutionary new Aegis external fixator pin with UAT’s proprietary ASP compound feature an active silver core engineered to aid in the prevention and management of external fixator pin track sepsis.

Unlike positive profile fixation pins, Aegis® titanium external fixator pins with UAT’s proprietary ASP have a shaft diameter that is equal to its thread diameter resulting in a pin that does not overly stress the integrity of the presumably already compromised bone structure.

The process begins with the insertion of UAT’s ASP assembly into the titanium block utilizing a multi-ton arbor press to place the silver alloy by hand demonstrating an exhaustive attention to detail and remorseless scrutiny typically seen only in the most precisely handcrafted bespoke timepieces or coach builders of fine luxury automobiles.


Conventional CNC lathes usually have three or four axes. UAT chose to manufacture the revolutionary new Aegis fixator pin using a Swiss-type lathe because it provides the type of attention to detail required to be a UAT design by maintaining up to 13 axes. The exterior titanium stabilizing support structure of the pin is first milled using the state of the art machine with a tolerance band of up to 0.0005 inch or one tenth of a millimeter providing tolerances and details that until now, have never been seen in the industry. We chose this process of milling the Aegis form from a singular block of titanium because this uniquely designed lathe bathes the titanium in specialized oils rather than water. The lubricity is greater with one of the significant benefits including freedom from odor-causing bacteria growth. The process shapes the paradigm shifting Aegis pin design at 10,000 revolutions per minute resulting in a process that simultaneously cuts and polishes the biomedical titanium to a near flawless finish. This process shapes the pin shaft, sculpts the dual cutting flute design and removes the top layer of excess material in addition to any surface imperfections while polishing the alloy in preparation for the unique anodizing process.

The newly inaugurated Aegis pin emerges, after undergoing a singular process that provides the advantages of simultaneously hardening and coloring the surface without altering the mechanical properties of the metal or the introduction of potentially toxic dyes, as a true representation of what it means to be a UAT designed and manufactured product. This process is designed to protect the medical component and add our signature color without the introduction of harmful dyes to provide the highest quality external fixator pin in the world.


The titanium alloy reacts to oxygen exposure by forming a clear oxide layer on its exposed surfaces. The specialized anodizing process, specific to the titanium, accelerates oxidation beyond what would be typically found naturally over time, producing thicker layers of oxide. As the layer thickens, it begins to interrupt the process of visible light photon absorption as they pass through and reflect off the metal surface. Through a phenomenon known as the resonance principle, color is created depending on the interference, absorption and vibrational motion of the electrons we have targeted. Since the thickness of the oxide controls the color that is produced, and since anodizing controls the thickness, the color produced in a titanium UAT product becomes controllable through the laws of physics as opposed to the addition of potentially dangerous and non-biocompatible dyes.

By adjusting and precisely controlling the surface oxide level of the metal we alter the spectrum of light, resulting in a perceived pristine color that provides a protective oxide layer. Voltage applied to the component through fixturing, in an electrolytic bath, controls the color without adding any dyes. Therefore, the integrity and properties of the base metal along with its suitability in biomedical applications are not compromised resulting in a precisely produced biocompatible medical device that is ISO 10993 compliant.

By introducing the industry to the Aegis fixation pin, Umbra Applied Technologies has brought forth the most significant advance in bone fixation since the last significant advance made by Raoul Hoffmann in 1938 and more than 100 years since the first threaded pin was used. Uncompromising in its design and engineering the Aegis external fixation pin sets a new industry standard for biotech while enhancing its fundamental purpose. The result of a collective obsession to simplify and create the most efficient design the Aegis pin is the epitome of scientific discipline and uncompromising skill. Umbra Applied Technologies; changing the world, is what we do.




UAT Advanced Medical Research

dnaThe Umbra Applied Technologies Biotech Division (UATBD) performs medical reconnaissance and special operations to address critical gaps that are absent in defense medical research programs. UATBD fosters research on health informatics, telemedicine, medical training systems, computational biology, and promotes and manages, science and engineering in other key portfolios. Through an extensive network of partners, UATBD is focused at both ends of the research spectrum, exploring models of high risk and innovative research, and putting research findings into the hands of warfighters while looking toward a wider civilian utility.

The UATBD is an innovative research organization with a vision of: World-class, operationally relevant health and medical research solutions – anytime, anywhere!

In todays world, we face not only the medical threats associated with conventional warfare, but also the potential use of weapons of mass destruction and terrorism against our military forces and our citizens. Thus, research at UATBD is focusing on finding solutions to both traditional battlefield medical problems and naturally occurring infectious diseases, as well as to health problems associated with non-conventional weapons, including thermobaric blast, biological agents, and radiation. In fact, research is being conducted in each of the following areas:

• Biological Defense
• Infectious Diseases
• Combat Casualty Care
• Biomedical Research
• Directed Energy Bioeffects
• Environmental Health
• Aerospace Medicine
• Tropical Medicine
• Medical Modeling, Simulation and Mission Support
• Warfighter Performance
• Epidemiology and Behavioral Sciences

We are proud to be out in front for advanced medical research and sciences, committed to creating value for our military, by improving readiness and enhancing future capabilities through our vital work in the areas of infectious diseases, biological defense, military operational medicine, combat casualty care, and radiation research, all in support of U.S. warfighters.

As our nation and our warfighters prepare to face an uncertain future, UATBD will continue to be there to support them with world-class, operationally relevant health and medical research, development, testing, evaluation, and surveillance

APEX Digital Joint Replacement System

Apex ImplantUAT is the worlds first provider of a permanent interphalangeal ceramic biomedical implant allowing bony on–growth. The combination of an improved anatomical design, advanced ceramic materials and textured stem create an implant unrivaled in the industry. The all ceramic implant has increased strength and lifespan with some of the lowest manufacturing micro–tolerances in the industry.

We took advanced technology from our Aerospace Division and through a cooperative effort across all divisions created a product that improves the quality of life for many sufferers of arthritis and/or an injury.

Apex Product Features

• Zirconia Ceramic Material for superior strength characteristics
• Increased biocompatibility over competitive implants
• Textured stem surface allows for improved implants anchoring
• Improved anatomical stem design
• Non–metallic components
• intuitive instrumentation



Joint replacement surgery of the hand is an excellent option for treating arthritis of the hand in most patients.

Joint replacement surgery can provide pain relief, increase finger range of motion, and improve hand function.

Key Features

• 50% or less joint space narrowing;
• Bone stock loss, erosions and hypertropic spurs;
• The above plus subluxation, angulation and increased deformity.
• Patient is in need of a revision of failed MCP, PIP or MCM prosthesis(es).

Read More About Apex™

Blood Management System (BMS)

hero_14UAT takes you to new levels in blood management with a proven, reliable and cost–efficient blood and platelet bag design. The UAT blood management system with Cellgevity powered by Propestat is the most technically advanced blood collection and storage system in the world. UAT blood and platelet bags offer outstanding preservation performance with an unparalleled attention to function, ergonomics and quality. At UAT we understand the importance of paying attention to the details, essential for today’s hospital–wide standardization needs.

UAT’s BMS with Cellgevity delivers unparalleled performance preserving blood platelets up to 10 times longer than any other bag in the world.

Product Features
• Rupture resistant.
• Designed to be stackable to reduce storage space.
• 800 ml capacity.
• With Cellgevity to extend viability and integrity of blood products by more than 10 times current blood management systems.
• Digital storage container management system with Days, Minutes, Hours and Temperature display.
• Built–in and pop–up hanging tab for I.V. delivery stands.
• Two port design.

ClearView™ Wrist Fixation System

hero_15Through a strategic partnership with GE, Umbra Applied Technologies created the world’s first medical grade Lexan based wrist fixator. This light weight radiolucent bone fixator permits the passage of radiant energy, such as x–rays, with little attenuation, in which the representative areas would typically appear dark on the exposed film. The “dark areas” obstruct the physician’s view of the fractured bone resulting in the need for more x–rays from different angles.

With UAT’s ClearView Wrist Fixator the need to expose patients to excess radiation is eliminated.

Product Features
• The worlds first medical grade Lexan based wrist fixator.
• Light weight & radiolucent bone fixator permits the passage of radiant energy.
• Reduces the need for more x–rays from different angles.
• Reduces patients exposure to excess radiation.
• Eliminates the need to modify and/or damaging patients clothing to accommodate bulky and cumbersome traditional bone fixators.
• Design features allow for easy adjustment during and post–operative surgery.
• Removable AP locking pin.
• Ball and pin holder assembly enables pins to be inserted and fixed within a 30–degree arc.

Insight™ Unilateral Multiaxial External Fixator

hero_16This light weight radiolucent bone fixator permits the passage of radiant energy, such as x–rays, with little attenuation, in which the representative areas would typically appear dark on the exposed film. The ¨dark areas¨ obstruct the physician’s view of the fractured bone resulting in the need for more x–rays from different angles.

We took advanced technology from our Aerospace & Defense Division and through a cooperative effort with our Advanced Technologies Development Division (ATDD) created a product for civilian use that is unrivaled anywhere in the world.

This fixator made mostly of beryllium is electronically operated and computer programmed to dynamically adjust with the patients healing rate. No manual adjustment needed and thus no mistakes can be made such as a patient forgetting to adjust the fixator daily. This platform ensures proper adjustment an as a result aids the healing process in the most efficient way.

Compound Pain Medication

22For more information on UAT Compound pain medication click here or please contact

Warning: All labels, products, processes and technologies described in this website are either patented, have patents pending or are copyrighted or trademarked. If you are interested in licensing any of the labels, products, processes or technologies, please contact Umbra Applied Technologies, Inc., 51 JFK Parkway, First Floor West, Short Hills, NJ 07078, Att: Privacy Office, (855) 862-7228,