Aluminum Brings Flexibility To Medical Device Engineering

Author: venusgeng

Nov. 24, 2022

Machinery

More often than not, aluminum isn't the first metal that comes to mind when a medical device engineer is working on a new project. Metals like stainless steel and titanium are used extensively for implants and surgical instruments. 

 

Surprisingly, aluminum extrusions have been used extensively by the medical community for many well-known instruments. The ear tubes (binaural) of a stethoscope, the most well-known medical instrument, are made from extruded aluminum tubes. Medical device engineers are considering extruded aluminum shapes and aluminum tubing more often than in the past to solve unique challenges. This is especially true for one-use surgical instruments where recyclability, flexible geometry, ease of machining/fabrication, and biocompatible coatings are important.


Medical Lens Assembly

Medical Lens Assembly 


Flexibility In Medical Device Designs


Some Trocar designs developed in the 1990s utilized the geometric flexibility of aluminum extrusions. The hollow designs made it possible to have three very sharp edges for cutting skin and the abdominal wall. The extrusions are fabricated on a Swiss CNC lathe and anodized to prevent oxidation. The outside diameter ranged from 5mm to 12mm which utilized a different extrusion die for each size.

 

Engineers working on a medical device for rotator cuff repair needed an aluminum extrusion to replace a stainless steel component that was too costly. Utilizing a very small aluminum extrusion was the answer. Both ends are machined on a CNC lathe, and the machined component is hard-coated and anodized prior to shipping to the OEM for final assembly. It replaced a much more expensive stainless steel component that was fabricated using a wire EDM.

 

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Device engineers have taken advantage of annealed aluminum (0 temper) in their design to allow a device to be bent during use. One example is a light tip which is part of a system that illuminates the spine during surgery. A second example is an aluminum tube that is part of a device that replaces heart valves. The parts below are extruded, tempered, and fabricated. Both parts are then annealed which makes the aluminum pliable. During surgery, they can be bent and placed exactly where the surgeon needs them.


Spool

Spools


About Us


Guangdong Coyo Precision Machinery Manufacturing Co., Ltd. is a national new technology enterprise specializing in the production of industrial aluminum profiles and extension products, integrating research and development, design, extrusion, and processing.


The main products of the company are various grades of high-precision industrial aluminum alloy profiles, pneumatic bus buses, bus communication valve islands, optical and visual lens modules, electric cylinders and linear modules, medical instrument modules, and so on. Products are widely used in automotive, packaging, lithium, 3C, optics, medical, and other intelligent equipment automation production lines.

 

Contact us today and find out how we can assist you with your medical precision aluminum design challenge. 


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