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

Advanced Glass Encapsulation for AIMDs Offered by Valtronic

Posted on by Posted in Valtronic

Implantable glass encapsulation David Prutchi PhD www.implantable-device.comValtronic is offering advanced glass encapsulation for active implantable devices.  Their first commercial application for this product is for an ingestible pill, but this technology is suitable for many long-term implants that can take advantage of its high density feed-through reliability, intrinsic miniaturization, and radio frequency/light transparency (e.g. implantable RFID tags, sensors, microstimulators, etc.)

Glass encapsulation has been used in other high-tech industries and is a proven technology. Hermetic glass encapsulation provides a totally leak-proof housing for an implant. Glass-sealed packages are used mostly in critical components and assemblies solving several problems in the development and manufacture of active implants due to its strong properties and extended life.

In a recent press release, Jim Ohneck, Valtronic’s Chief Marketing Officer stated:

“This new capability provides Valtronic with a unique opportunity to reduce an implant’s power consumption and increase its functionality while reducing its size.  We have exclusive rights to this technology for the medical industry worldwide and are excited about this great opportunity.”

Valtronic has released an interesting, very informative, and technically-oriented white paper about the technology.  Click here for the pdf file of the white paper.

Implantable glass encapsulation David Prutchi PhD www.implantable-device.com

 

Boston Scientific Launches OPTIMISE Trial of Precision™ Neurostimulator for Treatment of Chronic Migraine

Posted on by Posted in Boston Scientific, Migraine, Occipital Nerve Stimulation

Precision Spectra Spinal Cord Stimulator by Boston Scientific www.implantable-device.com David Prutchi, Ph.D.Boston Scientific announced that it has launched a clinical trial to determine whether occipital nerve stimulation (ONS) using the Precision™ System can safely and effectively treat chronic migraine when used in conjunction with anti-migraine medications.   According to the press release:

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WiTricity Developing Long-Range Transcutaneous Energy Transfer Solutions for AIMDs

Posted on by Posted in Rechargeable Batteries, Thoratec, WiTricity

WiTricity Logo www.implantable-device.comThis month’s Medical Device and Diagnostic Industry  (MD+DI) magazine carried an interesting article by David Schatz – WiTricity’s VP Sales – on their efforts to develop highly resonant wireless power transfer technology for use in AIMDs.  The article is available online at http://www.mddionline.com/article/wireless-power-medical-devices.

The article mentions the work that WiTricity has been doing with Thoratec to wirelessly power a HeartMate II® LVAD, and which was announced back in May 2011.  David told me that for this project, WiTricity has been able to transfer 20 Watts over 20 cm, with SAR and temperature-rise compliance, and without the use of resonant repeaters.

If these levels scale well to small receiver units, I believe that this technology would enable not only the development of deep-implant AIMDs that are currently outside the range of classical resonant-inductive TET, but would also allow the development of more patient-friendly rechargeable AIMDs that don’t require dedicated recharge sessions, but rather receive their charge from a WiTricity transmitter under the patient’s bed while the patient sleeps.  From the MD+DI article:

“A circulatory assist device like an LVAD is just one example of a medical device that can harness the benefits of highly resonant wireless power transfer. There is also promise for other implanted devices, including neurostimulators, implantable defibrillators and pacemakers, implantable drug-delivery pumps, electronic ophthalmic and cochlear implants, and rechargeable hearing aids.

In this broad range of implanted medical devices, high-resonance wireless power transfer can enable higher charge rates than would be possible with traditional magnetic induction. Higher charge rates allow for device implantation deeper within the body and enable more flexible charger configurations outside of the body.

For example, the wireless charger for ophthalmic or cochlear implants could be deployed in a pair of eyeglasses or a pillow. The wireless charger for a neurostimulator implanted in the lower back could be deployed in a chair or bed. Hearing aids could be recharged by simply placing them in a charging box on one’s nightstand, without requiring precise fixturing or galvanic contacts as do today’s rechargeable hearing aids.”

 

 

St. Jude Q2 2013 AIMD Results: CRM Down 4%, Neuromodulation 2% Up

Posted on by Posted in AIMD Business, St. Jude Medical

logo_StJudeMedical

From today’s press release:

“Cardiac Rhythm Management (CRM)

Total CRM sales, which include implantable cardioverter defibrillator (ICD) and pacemaker products, were $718 million for the second quarter of 2013, a 4 percent decrease compared to the second quarter of 2012. After adjusting for the impact of foreign currency, total CRM sales decreased 2 percent.

Of that total, ICD product sales were $454 million in the second quarter, a 1 percent decrease compared to the second quarter of 2012. ICD revenue was flat after adjusting for the impact of foreign currency.

Second quarter pacemaker sales were $264 million, an 8 percent decrease compared to the second quarter of 2012. On a currency neutral basis, pacemaker revenue declined 6 percent.”

…

“Neuromodulation

St. Jude Medical sales of neuromodulation products were $108 million in the second quarter of 2013, up approximately 2 percent from the prior year.”

 

 

Algostim – Greatbatch’s Own Spinal Cord Stimulation System

Posted on by Posted in Greatbatch, Greatbatch Medical (Power), Pain, Spinal Cord Stimulation

 

Greatbatch Algostim System David Prutchi PhD www.implantable-device.comGreatbatch Medical, which moved its headquarters to the Dallas, TX area last year, announced that it has set a target of at least 5%/yr organic growth.  To accomplish this growth, the Company recently announced consolidating operations of its various divisions in order to create efficiency.

In addition however, Greatbatch is diversifying from being strictly a developer of implantable-grade components into a firm capable of developing complete medical devices.  Greatbatch’s CEO Thomas Hook announced in March 2013 that Greatbatch is internally developing its own spinal cord stimulation system.  The device, called Algostim, is nearing completion of development and will be moving into the commercialization phase.  The company is looking for a partner to take the Algostim device into the $1.4 billion spinal cord stimulation market, which has been growing at more than 10%/yr.

Click here for an extract describing Algostim from Greatbatch’s investor day of March 2013.

 

Greatbatch Reorganizes to Combine Greatbatch Medical and Electrochem Solutions

Posted on by Posted in Greatbatch Medical (Power), Implantable Components

Greatbatch logo www.implantable-device.comOn June 5, 2013 Greatbatch, Inc. announced  that it would combine Greatbatch Medical and Electrochem Solutions – which have been operating independent operations and sales & marketing groups – into singular sales & marketing and operations groups serving the entire Greatbatch organization.  According to the press release:

“We’ve spent the past eight years successfully integrating and consolidating our organization. With that mission accomplished, we can set our sights squarely on our growth target to achieve 5 percent organic growth or better,” said Greatbatch President & Chief Executive Officer Thomas J. Hook. “As we shared with investors earlier this year, the company is progressing from strictly a developer of components and sub-assemblies to an organization capable of developing complete medical devices for OEM customers. Our realignment into a more unified Greatbatch will allow us to reinvest in both our core business as well as emerging platforms in pursuit of substantial growth.”

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Enopace Receives Additional $5M Investment for Development of Stimulator for Treatment of Heart Failure

Posted on by Posted in Aortic Stimulation, Enopace Biomedical, Heart Failure (CHF), Sorin, Yossi Gross (Rainbow Medical)
Enopace's implantable device

From Patent Application Publication: US 2011/0137370 A1

Sorin recently announced a $5 million investment in Israeli startup Enopace Biomedical, which is developing an endovascular neurostimulation system for heart failure.  Back in October 2011 Sorin invested $7 million to finance the initial clinical studies of Enopace’s technology as well as ongoing product development.

Very scant details are available besides that it is developing a neuromodulation system to treat patients with congestive heart failure. According to the company, its technology consists of a minimally invasive, implantable neurostimulation device that increases cardiac efficiency by reducing left ventricular workload.

From Enopace’s patent applications, it seems that Enopace’s device consists of a stimulation unit that is placed within the aorta close to the heart, and which is driven wirelessly from a coil that is placed within a vein closeby to the artery. The transmitting coil is in turn driven from an implanted control unit that is implanted subcutaneously.

Israeli business news website “Globes” interviewed Enopace’s CEO Amir Dagan, and reported in February 2013:

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Neuromodulation Startup NeuroTronik Raises $13.1M for Development of System for Treating Acute Heart Failure Syndrome

Posted on by Posted in Heart Failure (CHF), Neural Stimulation, NeuroTronik

NeuroTronik Neuromodulation www.implantable-device.comNeuroTronik, a recent spin-off from Synecor, a Chapel Hill business accelerator, announced that it has raised $13.1M for the development of a neuromodulation system intended for the treatment of acute heart failure syndrome.

Douglas Reed, a partner in the VC group backing NeuroTronik said that the device aims to shorten hospital stays and reduce the need of patients to return to the hospital a few weeks later.  According to Reed:

“It’s a way of stimulating the heart to increase the pumping effectiveness, the effectiveness of the contractions, so it improves cardiac function while the device is in place.”

 

EnteroMedics Submits PMA of the Maestro VBLOC System for Treatment of Obesity

Posted on by Posted in Diabetes, EnteroMedics, Gastric Stimulation, Obesity

EnteroMedics  reported that it has submitted its pre-market approval application for FDA review of its Maestro Rechargeable System’s VBLOC vagal blocking therapy as a treatment for obesity

This is an important step for an implantable device company that faced very tough times in 2009 after its US clinical trial failed to meet a critical effectiveness goal. EnteroMedics conducted a pivotal trial, and believes that the data are positive, leading it to submit the PMA application.

According to the press release, EnteroMedics president & CEO Mark Knudson said that “the Maestro System is a unique, neuroscience-based approach to the treatment of this epidemic disease, one which offers the potential to fill a significant gap in the obesity treatment spectrum. In the hundreds of patients treated to date, in addition to showing clinically meaningful weight loss, VBLOC Therapy has demonstrated an excellent benefit-to-risk profile; a criterion identified by the Agency as central to the review and approvability of new obesity treatment devices.”

 

NeuroPace Raises $18M of Planned $50M

Posted on by Posted in AIMD Business, Brain Stimulation, Dr. David R. Fischell, Dr. Robert Fischell, Epilepsy, NeuroPace

Image Credit: NeuroPace

NeuroPace is a privately-held company in Mountain View, CA. Their RNS® implantable stimulator, along with depth leads and cortical strip leads are designed for the treatment of medically refractory partial epilepsy.

Unlike Cyberonics’ VNS IPGs, the RNS neurostimulator is designed to detect abnormal electrical activity in the brain and respond by delivering electrical stimulation to normalize brain activity before the patient experiences seizure symptoms. The neurostimulator is implanted in the cranium and connected to one or two leads that are implanted near the patient’s seizure focus.

NeuroPace recently disclosed that it has raised about $18 million of a planned $50 million in new funding. NeuroPace has raised about $180 million since it was founded in 1997.

 

 

Proposed Microgravity Testing of AIMDs

Posted on by Posted in Humor, My Portfolio

 httpv://youtu.be/iFr5OSR0sk8

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 change will be caused by exposure to microgravity conditions.

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TYRX receives FDA Approval for Fully Resorbable AIGISRx R Antibacterial IPG Envelope

Posted on by Posted in Cardiac Pacing, Cardioversion/Defibrillation, Drug Delivery, Infection, TYRX Inc

Tyrx IPG antimicrobial pouch David Prytchi www.implantable-device.com

AIGISRx® is an Antibacterial Envelope that is made from knitted polypropylene mesh substrate, coated with a polyarylate bioresorbable polymer containing two antimicrobial antibiotics, minocycline and rifampin. AIGISRx is a dual component (resorbable and non-resorbable), sterile prosthesis designed to reduce infection and to stabilize the implantable pacemaker or defibrillator when implanted in the body.

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Aleva Neurotherapeutic’s Ultra-Flexible Electrode Arrays for DBS

Posted on by Posted in Aleva Neurotherapeutics, Brain Stimulation, Electrodes, Parkinson's Disease
Aleva DBS electrode array www.implantable-device.com David Prutchi PhD

Miniature, ultra-flexible electrode (credit: EPFL)

Aleva Neurotherapeutics is a spinoff of the Swiss Federal Institute of Technology (EPFL) Microsystems Laboratory.   Aleva is developing unique microfabricated devices to more specifically target deep-brain stimulation.

kurtzweilai.net recently published an interesting blog about the technology.  From the post:

“Miniature, ultra-flexible electrodes could be the answer to more successful treatment for Parkinson’s diseases, according to Professor Philippe Renaud of the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland.

He has developed soft arrays of miniature electrodes in his Microsystems Laboratory that open new possibilities for more accurate and local deep brain stimulation (DBS).

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Mainstay Medical’s Reactiv8 to Treat LBP Caused by Arthrogenic Muscle Inhibition

Posted on by Posted in Mainstay Medical, Muscular Stimulation, Pain, Spinal Cord Stimulation

logo_mainstay1[1]

Mainstay Medical was founded in 2008 by entrepreneur Dr. Danny Sachs. The company’s ReActiv8 neurostimulator is intended to treat chronic low back pain caused by arthrogenic muscle inhibition.  This is a neuroprotective condition in which the brain reflexively attempts to limit motor stimulation and movement in muscles surrounding a joint in response to damage or injury to the joint. In patients with this type of back pain, an initial injury triggers this reflexive inhibition, and the brain tries to limit painful movement by altering nerve transmissions to the deep stabilizing muscles of the spine, causing a loss of motor control, an unstable spine, and greater susceptibility to reinjury.

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