A blog about what is new (and old) in the world of active implantable medical devices 

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Keynote Lecture on Electroceuticals Presented at 2014 VLSI Symposium in Taiwan

My daughter Shanni and I just came back from Hsinchu, Taiwan where I was invited to deliver a keynote lecture at the 2014 International Symposium on VLSI Design, Automation and Test. The lecture was titled “Electroceuticals – Replacing Drugs by Devices Enabled through Advanced VLSI Technologies”  Here is the abstract:  Electroceuticals are medical devices that

 
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Submitting AIMD System Applications to China’s State FDA

I just came back from Beijing where we are in the process of registering our AIMD systems.  The process if very different than submitting an application to a EU Notified Body or to FDA.  This is because China’s State FDA (S-FDA) doesn’t accept testing performed abroad.  S-FDA only accepts testing performed at one of the Chinese

 
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Increase in Temperature from AIMDs Dissipating Endogenous Heat

Active Implantable Medical Devices generate heat as a result of resistive losses in their circuitry, exothermic reaction in their batteries, eddy-current heating due to inductive recharge, friction between mechanical components, etc.  The European Standard which regulates AIMDs limits the heating of the outer surface of an AIMD to 2ºC above normal body temperature.  Despite the

 
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Proposed Microgravity Testing of AIMDs

  With the popularization of space tourism, I would hereby like to propose the addition of a clause to 45502-1 to be titled “Protection of the active implantable medical device from microgravity conditions“.  I propose the following language: The implantable parts of an ACTIVE IMPLANTABLE MEDICAL DEVICE shall be designed and constructed so that no irreversible

 
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IEEE Summer School on Implantable Devices – Bogotá, Colombia (July 9 – 12, 2013)

I have been honored with an invitation to present at the  Fourth IEEE CASS Summer School on Wearable and Implantable Biomedical Circuits and Systems in Bogotá, Colombia (July 9 – 12, 2013). I will be giving two 1 hour and 20 minute talks on “A Practical Perspective on Developing Novel Commercial Active Implantable Medical Devices”. 

 
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Impulse Dynamics Launches CE-Marked OPTIMIZER IVs System for the Treatment of Heart Failure

Impulse Dynamics (yes, the company for which I work) launched its new, CE-marked OPTIMIZER™ IVs implantable device for the treatment of heart failure at the 79th Annual Meeting of the German Cardiac Society (Mannheim, Germany, 3–6 April 2013). The OPTIMIZER™ IVs Implantable Pulse Generator (IPG) is a programmable telemetric device intended to treat moderate to severe heart

 
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“Data Block” Percutaneous Implantable Electrical Connector

The development of medical devices, drugs, and treatments depends on accurately retrieving clinical data from implanted animals. Implantable data collecting and sensing devices provide one way to retrieve these data. These device often include sensors or electrodes which must be implanted within the subject in order to provide clinicians with access to the sensed information.

 
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Crazy Pacemaker Hack: d.i.y. High-Speed Photography

This is a hack that combines three of my favorite passions: pacemakers, photography, and coffee! I took this photograph by feeding the output of an infrared barrier to the atrium input of an old DDD pacemaker, setting an appropriate AV delay, and using the ventricular output to trigger a camera flash (via a optoisolator).  In

 
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AIMD Companies Founded by Dr. Shlomo Ben-Haim

Dr. Shlomo Ben-Haim has held faculty appointments as a Professor of Medicine, Physiology and Biophysics, at both Harvard University and the Technion – Israel Institute of Technology. His formal education is in the fields of nuclear physics, mathematics, biomedical engineering, philosophy, and medicine. Dr. Ben-Haim has published his research in over 100 scientific papers, in

 
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NEXUS Pacemaker with Hemodynamics Sensing and Patient Alert

Intermedics’ next-generation pacing platform would have been full of neat features such as: hemodynamic sensing (impedance-based hemodynamic sensor), autocapture (capture verification), autothreshold (self-tuning based on automatic strength-duration curve generation), high-quality digital telemetry, large-volume memory for electrogram storage, non-volatile memory for self-recovery and patient information, advanced noise detection, etc. My favorite feature though was “Patient Alert”.

 
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Tantalus II System for Treating Metabolic Syndrome

MetaCure’s TANTALUS II device is an advanced implantable electrical stimulator used to apply gastric stimulation. It works by enhancing the activity of gastric muscles only when the patient eats, which modifies hormone secretion, favorably affecting glucose and fat metabolism. At the same time, the stimulation causes the patient to feel satiated sooner and consume less

 
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Impulse Dynamics’ OPTIMIZER III IPG for Treatment of Heart Failure

Impulse Dynamics’ OPTIMIZER™ III Implantable Pulse Generator delivers Cardiac Contractility Modulation (CCM), non-excitatory electrical signals during the myocardial absolute refractory period in synchrony with locally sensed electrical activity. CCM signals are intended to treat patients with symptomatic heart failure despite appropriate medical treatment.

 
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