Tag Archives: Medical Industry

Spinal Implants, Part 3 – Mass Finishing Versus Shot Blasting Methods

implanted spinal rods
Implanted spinal rods

With worldwide sales at nearly $10 billion annually, there is a high demand for spinal implants. These implants are subject to very specific and strict surface finishing requirements to ensure longevity and fixation to bone.

Mass finishing and shot blasting play key roles in creating the right finish for spinal implants, not only for intermediate surface treatment after forging, casting, machining, additive manufacturing, etc., but also for placing the final surface finish before implantation.

Let’s examine the capabilities of mass finishing and shot blasting for spinal implants and how Rosler Metal Finishing can develop a precise and repeatable finishing process to meet your unique challenges and goals.

Continue reading Spinal Implants, Part 3 – Mass Finishing Versus Shot Blasting Methods

Joint Reconstruction, Part 6 – Shot Blasting for Surface Finishing, Coating Preparation, and Increased Component Life Span

Like mass finishing, shot blasting is an exceptionally versatile surface treatment technology. Its applications range from general cleaning after casting and forging to shot peening and, even, cosmetic blasting for placing a fine, matte finish on the work pieces.

For shot blasting of orthopedic implants Rosler Metal Finishing recommends mainly air and occasionally wet blasting systems. The blast media is accelerated by compressed air and thrown at the work pieces through a blast nozzle, creating an extremely precise blast pattern compared to turbine blasting. Another advantage of air blasting is that it can be used with metallic, mineral as well as organic blast media.

These attributes and many more make this surface finishing method particularly useful in the medical industry

Continue reading Joint Reconstruction, Part 6 – Shot Blasting for Surface Finishing, Coating Preparation, and Increased Component Life Span

Joint Reconstruction, Part 5 – Mass Finishing for Smooth, polished surfaces

Mass finishing is a highly versatile finishing technology that can be used for a wide variety of different surface treatment operations including those in the medical industry. Therefore, it is no surprise that mass finishing processes are utilized at practically every manufacturing stage for all kinds of orthopedic implants.

Rosler Metal Finishing has decades of experience in mass finishing. In this installment of the Joint Reconstruction Series, we will compare the various machines used to provide precise finishing for endoprosthetic manufacturers.

Examples of Mass Finishing

Mass finishing is used for a variety of joint replacement work pieces including:

  • Descaling and edge radiusing of hip stems, knee femorals, and other implants after forging or casting, e.g. lost wax or investment casting. 
  • Deburring and surface smoothing of various implants after belt or CNC grinding.
  • Final polishing of knee femorals, femoral heads, and the inside of acetabular cups to Ra = 0.8 micro inches as the last finishing stage before implantation.
Continue reading Joint Reconstruction, Part 5 – Mass Finishing for Smooth, polished surfaces

Joint Reconstruction, Part 4 – Comparing Surface Finishing Methods

Shot blasting and mass finishing have become indispensable technologies for surface preparation and finishing of joint reconstruction implants. Their applications range from surface cleaning, deburring, edge radiusing after forging, casting, additive manufacturing, and machining to surface preparation for different kinds of coatings, shot peening for increasing the longevity of an implant, and placing an extremely smooth, high-gloss finish on the implants before they are inserted into the body.

Rosler Metal Finishing leverages its extensive experience in the medical industry to create customized solutions and equipment for the treatment of joint reconstruction implants.

This installment of the Joint Reconstruction Series will compare the working principles and features of utilizing shot blasting and mass finishing technologies for endoprosthetic implants.

Continue reading Joint Reconstruction, Part 4 – Comparing Surface Finishing Methods

Joint Reconstruction, Part 2 – Material Standards

Joint reconstruction implants allow millions of individuals to regain mobility and reduce pain. Just as surgical skill is required to implant these artificial joints, so is skillful construction and finish of the joint components themselves.

A leader in surface finishing for medical technology, Rosler Metal Finishing has extensive experience in shot blasting and mass finishing a wide range of medical devices from instruments to implants used specifically for joint replacement.

Our Joint Reconstruction Series continues with an overview of the most common materials used for these endoprosthetic implants.

Material Standards

The most common materials used for joint reconstruction implants are currently titanium and titanium alloys and cobalt-chromium alloys. Both materials are very tough, corrosion-resistant, highly biocompatible, and have proven themselves to be absolutely reliable.

Continue reading Joint Reconstruction, Part 2 – Material Standards

Joint Reconstruction, Part 1 – Expertise for Endoprosthetics

With more than $18 billion in annual worldwide sales, implants for joint reconstruction make up nearly 40 percent of all orthopedic product sales. More active lifestyles and increased life expectation continue to contribute to the rapid growth of this market segment.

Thanks to significant advancements on the material side and enhanced surface finishing technologies, artificial hips and knees can last more than 20 years before they must be replaced. Rosler Metal Finishing’s shot blasting and mass finishing capabilities are examples of processes and equipment that have and continue to evolve to accommodate the demand for increased endoprosthetics which are also known as orthopedic joint reconstruction implants.

These techniques play a key role in intermediate processing steps including cleaning, deburring/edge radiusing, surface smoothing, and surface preparation for coatings after casting, forging, machining, CNC grinding as well as placing the final finish on the implants before they are inserted.

Continue reading Joint Reconstruction, Part 1 – Expertise for Endoprosthetics

Surface Finishing Guidebook for Trauma Implants

It is not surprising that trauma implants, along with other medical devices, are subject to the most stringent quality standards. Any material defect or malfunction can have catastrophic consequences for a patient.

For implants, the two key issues for manufacturers to deal with are selecting the right material and attaining the required surface finish. The finishing requirements can range from simple cleaning or deburring to surface smoothing and high-gloss polishing. Components exposed to a lot of tensile and bending stress even undergo a shot peening process to improve their fatigue life.Click here to download guidebook.

Some implants must have a textured or “rough” finish to promote osseointegration, which is the attachment of surrounding bone tissue to the implant. Other trauma implants require a very smooth surface to prevent the bone from attaching itself to the implanted material.

We’ve created another exclusive surface finishing guidebook to cover this complex topic, in which we will discuss the surface finishing needs of trauma implants and the impact finishes have on their functionality and performance. Examples of mass finishing and shot blasting applications will also be presented followed by detailed machine reports of actual applications used in the industry today.

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Surface Finishing Guidebook for Medical Instruments

Among the various technologies used for finishing the surface of medical instruments, mass finishing and shot blasting play a key role, not only as intermediate steps but also for placing the final, finishing touch on these components.Call to action text in case your image doesn't load.

Besides the right material selection, surface treatment is an essential component of the overall manufacturing process of medical instruments. Only high-quality surface finishes guarantee the required functionality, high sterility, corrosion resistance, and absolute reliability that most medical components require, while also providing a satin, non-glare appearance.

To cover this complex topic, we’ve created an exclusive surface finishing guidebook, specifically for medical instruments!  In this guidebook we will discuss Continue reading Surface Finishing Guidebook for Medical Instruments