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MicroTransponder reports first commercial implantation of its stroke rehab neurostim system

The Vivistim paired VNS system for chronic ischemic stroke rehabilitation [Image courtesy of MicroTransponder]MicroTransponder (Austin, Texas) recently announced the first commercial implantation of its Vivistim paired VNS system for chronic ischemic stroke rehabilitation.

Dr. Charles Y. Liu, director of the University of Southern California Neurorestoration Center, and Dr. Jonathan J. Russin, director of the USC Neuro Revascularization Center, successfully placed the small Vivistim device under the skin of Rosa Maria Villalpando’s upper left chest area during an outpatient procedure. The news, reported in a May 11 news release, comes nearly a year after MicroTransponder announced FDA approval of the Vivastim system.

“We are proud that the Vivistim System is reviving hope for stroke survivors and addressing an unmet need for those who have chronic impairment,” MicroTransponder CEO Richard Foust said in a news release. “Stroke survivors whose hand and arm fun…

FDA approves MicroTransponder’s stroke rehab neurostim system

(Image courtesy of MicroTransponder)

The FDA announced today that it approved the MicroTransponder Vivistim paired VNS system for chronic ischemic stroke rehabilitation.

MicroTransponder designed its Vivistim System as a first-of-its-kind, drug-free rehabilitation system for treating moderate to severe upper extremity motor deficits associated with chronic ischemic stroke using vagus nerve stimulation, according to an FDA news release.

Vivistim electrically stimulates the vagus nerve to reduce deficiencies in upper limb and extremity motor function and to improve patients’ ability to move their arms and hands. An implantable pulse generator is implanted just under the skin in the chest of the patient with a lead wire that leads up to electrodes placed on the left side of the neck where the vagus nerve is.

Along with the implantable components, clinician software on a laptop and a wireless transmitter are for use by a healthcare provider to manage a…

Neurostimulation may help restore arm function years after stroke

(Image courtesy of MicroTransponder)

Stroke survivors who received vagus nerve stimulation (VNS) combined with rehabilitation had better arm and hand function, according to the results of a new study.

In the international, multi-center clinical trial, 53 participants with moderate to severe arm weakness nine months to 10 years post-stroke received rehabilitation paired with VNS. Fifty-five patients within the same parameters received a sham stimulation. The randomized, triple-blind trial was funded by medical device company MicroTransponder and published in The Lancet.

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