Category Archives: thermal management

Thermal Management of Medical Equipment is not just about keeping it cool; it might mean life or death for the patient

Yesterday we noted Thermacore’s new white paper, “Thermal Management for Today’s Medical Devices and Equipment“. As we noted yesterday, we couldn’t agree more with Thermacore’s premise. Here at ATS, our team thinks the topic of proper thermal management of medical equipment is vitally important to people’s lives. So important, we wanted to post a bit more about it.

Key trends we are seeing in thermal development in the medical industry:

  • Unquestioned Reliability
  • Instruments with greater accuracy and capability
  • Reduced size and miniaturization

Reliability is important on at least two levels. First, if the equipment is not reliable, the economic payback simply won’t be there for a physician, clinic or hospital. For example, CT scanner’s can cost up to $300,000. If it’s unreliable due to thermal stress, the payback investment might be twice as long as what would generally be seen.

The second reason for reliability is for patient and doctor confidence. Patients want to have confidence in the equipment they are being tested on. This can reduce their personal stress by trusting the results they will receive are accurate. Doctor’s want to be confident in the diagnostic equipment they are using. Doctor’s want to trust the data they get is accurate enough for them to determine a diagnosis.

The accuracy and diagnostic capability is important too. For any medical equipment to be useful the data collected has to be accurate or else a wrong diagnosis might occur.
The fallout from that reduced accuracy can be devastating as incorrect diagnosis may be formed leading to an incorrect course of healing for the patient. Poor thermal management of key components and entire systems can cause processors within the medical equpiment to overheat, slowdown and potentially return data errors.

Finally, reduced size and miniaturization can mean diagnostic equipment gets deployed more widely increasing it’s potential use and benefitting the health of the population where it is used. The packaging for this smaller equipment requires careful attention to the thermal design. Regardless of how low power the components used, the smaller the space, the more the airflow will be reduced and the increased likelihood for thermal stress and component malfunction.

Thermal management of electronics is critical to their functioning properly and being a tool that helps people’s health. At ATS, we have developed thermal management solutions, including heat sinks, for a variety of medical applications from EKG machines, to Defibrillators, to Ultrasound equipment and Tissue/DNA Analyzation instruments. To learn more about our thermal management consulting for medical equipment, please visit our web site at this link: ATS Thermal Management of Medical Applications. You can also drop us a line to tell us about your application and how we might help by clicking to our on-line engineering services request at our web site: Analysis and Design Services Request

How passive thermal management can help medical products engineers meet design challenges for cost, thermal performance & low noise

Thermacore has released a compelling white paper on the use of passive thermal technologies to cool medical equipment and devices. Thermal management of electronics is critically important. No one wants to get a report noting you have a health problem and this is especially true if that ill-health report is wrong due to a medical equipment malfunction due to overheating.

Thermacore’s white paper notes that:

The impressive capabilities of 21st century medical technology, from imaging equipment to surgical instruments and automated immunoassays, are in many ways a tribute to the advances in microprocessor computing power. However, more power means more heat, generally in a smaller space. And as greater demands for precision and reliability are placed on medical equipment, thermal control becomes more critical.

We couldn’t agree more. Even low power processors are being packed together to provide more cores for a given application. While a 1W or 2W processor might not be much, try putting 30 of those together in a shoe box!

Thermacore has some great input about how to address thermal management in medical electronics. Visit their article at their site: Thermal Management for Today’s Medical Devices and Equipment.

If you aren’t familiar with heat pipes and how they work, our team at ATS Thermal Labs has prepared a white paper describing how and why they work; you can find a copy at ATS’s Qpedia Archives by clicking to Heat Pipes; Heat Super Conductors. ATS also does Heat Pipe development, to learn more, email Mike Haskell, one of our Senior Thermal Engineers, at [email protected]

How to stretch a new project’s thermal management budget by optomizing PCB layout for airflow; an ATS Thermal Labs White Paper

Hardware engineers all bump into this problem eventually: The cost of the heat sink solution part of the thermal management design is out of balance with the overall programs development costs.

The first thought is, “get a cheaper heat sink”. That’s a natural response that probably won’t work since the reason the originally chosen heat sink is so expensive is that it has a thermal resistance geared to your challenging application.  The second thought is, “get a bigger fan”. Afterall, the chips will eventually cool down with enough air, right? (yes your users might go deaf when you implement that bigger fan).

A better strategy within the limits of project time constraint, budget, and technical requirements for trace length, might be to consider how the PCB board can be layed out for optimal air flow. In this ATS Thermal White Paper we talk about how to do that. We give you specific tools and strategies. Why do that when we could sell you a better heat sink? Because at ATS we are passionate about cooling hot stuff down (and saving users from going deaf from larger fans). Have a read here at our white paper: “The Effect of Compact PCB Layout on Thermal Management“.

And ATS can help you with that of course through our Engineering Consulting Services, click to learn more about us: ATS Thermal Management Design Consulting Services or tell us a bit about your project through our on-line project submission: Thermal Design On-Line Project Request

Dr. Kaveh Azar Interview on ATS’s New Thermal Engineering Design Service for Verizon’s VZ.TPR.9208

We’ve started a new regular feature here at ATS, “The ATS Product Highlight”. Our readers can glance to the right hand column to see our inaugral highlight, ATS’s Verizon’s Thermal Management Design Services, a complete set of services to assist the OEM in passing Verizon’s new NEBS VZ.TPR.9208 Thermal Management Requirements for Improved Energy Efficiency of Telecommunications Equipment.

We caught up with our CEO, Dr. Kaveh Azar, to ask him a few questions about why ATS decided to start such a service, what services ATS is providing and more. Just click on the Slidecast below for this 4 minute overview on ATS’s new service:

[slideshare id=4041294&doc=atsverizontpr-9208services-100510144512-phpapp01]

Our readers can also checkout our initial announcement at heatsinks.wordpress.com by clicking to our post, “ATS Announces Thermal Design Services to help Telecom Equip OEMs meet Verizon’s VZ.TPR.9208 Thermal Management Req.” and our readers can see a 3 minute interview of Verizon’s Chuck Graff, the author of VZ.TPR.9208, as to why Verizon decided to release this specification by clicking to, “Verizon’s Chuck Graff speech on VZ.TPR.9208 Thermal Management Spec; Pass Verizon’s tests by partnering with ATS“

How to choose the right tubing material for a liquid cooling system for thermal management of electronics

The thermal solutions market is making a gradual transition to the use of liquid cooling for thermal management of electronics. But, at the same time, there is a growing unease over the reliability of liquid cooling system. The main concerns involve pump lifetime, radiator corrosion, cold plate leakage. Thermal engineers can spend many hours designing and testing these components. However, one critical component that is often not in this mix is the tubing used in the cooling loop. Learn how to choose the right kind and type at our ATS Labs White Paper:, “Tubing Material Selection for Liquid Cooling“