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invasive  ·  VNS ·  shipping

Vivistim Paired VNS System

By MicroTransponder

Identity

Manufacturer
MicroTransponder
Model number
—
Codename
—
Aliases
Vivistim, MicroTransponder Vivistim
Generation
—
Country of origin
US
Released
Announced
—
Discontinued
—
Status
shipping

Classification

Invasiveness
invasive
Modalities
VNS
Primary modality
VNS
Direction
write
Categories
medical-implant, stimulation, therapeutic
Form factor
implant
Use cases
treatment of moderate-to-severe upper-extremity motor deficits in chronic ischemic stroke, vagus nerve stimulation paired with physical / occupational therapy
Target users
neurosurgeon, therapist, patient-stroke

Electrodes

Total channels
1
Recording channels
0
Reference channels
—
Electrode type
cuff
Material
platinum-iridium
10-20 positions
—
Requires gel
No
Requires saline
No
Prep time
—
Reusable
No
Disposable
No

Stimulation

Capable
Yes

Connectivity

Protocols
proprietary-rf
Bluetooth
—
Bluetooth profiles
—
Concurrent mode
single-only
Encryption (transit)
—
Pairing methods
—
Cloud sync
—
Offline recording
No

Power

Sources
non-rechargeable
Battery life (active)
—
Charging port
—
Charging time
—
Battery replaceable
No
Notes
Primary cell; generator replacement surgery at end-of-life.

Physical

Weight
—
Dimensions
—
Materials
titanium
Sizes
—
Head circumference
—
Operating temp
—

Compute

Has onboard computer
No
Operating systems
custom-firmware
Primary OS
custom-firmware
Edge ML accelerator
No
Root access
none
App sandbox
No
3rd-party apps allowed
No
Notes
Stimulation triggered by therapist via paired wireless transmitter during rehab task practice.

Software & data

Mobile app
No
Cloud platform
—
Offline mode
Yes
Subscription required
No
Raw data access
No
Export formats
—
LSL support
No
Data ownership
manufacturer
Apps
Vivistim Programmer (clinician), Vivistim Therapist Wireless Transmitter

SDK & developer access

Has SDK
No
Open source
No
Languages
—
Web Bluetooth
No
Raw sample access
No
BCI paradigms
—
3rd-party integrations
—
Docs
—

Capabilities

Attention / focus
—
Meditation / calm
—
Neurofeedback
No
Meditation coaching
—
Sleep tracking
—

Regulatory & clinical

FDA status
pma
CE mark
—
Certifications
FDA PMA P210007, FDA Breakthrough Device
Prescription required
Yes
Pediatric approved
No

Pricing & availability

MSRP
—
Current price
—
Subscription
—
Warranty
—
Return policy (days)
—
Where to buy
Buy at vivistim.com

Media & links

Official site
vivistim.com
Product page
vivistim.com

Editor’s take

In favor

  • FDA-approved with randomized-controlled-trial evidence (VNS-REHAB)
  • Active, intentional pairing with rehab task practice
  • Strong clinical rollout into US comprehensive stroke centers

Against

  • Requires implant + ongoing therapist-led rehab sessions
  • Voice alteration is a common side effect
  • Limited to chronic ischemic stroke arm-motor deficits

Sources & provenance

Last reviewed