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SCS: This system is indicated as the sole mitigating agent, or as an adjunct to other modes of therapy used in a multidisciplinary approach for chronic, intractable pain of the trunk and/or limbs, including unilateral pain. The trial devices are solely used for trial stimulation (no longer than 30 days) to determine efficacy before recommendation for a permanent (long term) device. PNS: This system is indicated for pain management in adults who have severe intractable chronic pain of peripheral nerve origin, as the sole mitigating agent, or as an adjunct to other modes of therapy used in a multidisciplinary approach. The Nalu Neurostimulation System for PNS is not intended to treat pain in the craniofacial region. The trial devices are solely used for trial stimulation (no longer than 30 days) to determine efficacy before recommendation for a permanent (long term) device.

The Nalu Neurostimulation System (referred to as the "Nalu System") incorporates a miniature implantable pulse generator (IPG), powered by an externally worn Therapy Disc device. The Nalu System therapy utilizes pulsed electrical current to create an energy field that acts on peripheral nerves or central nerves to inhibit the transmission of pain signals to the brain. The Nalu System may be implanted following a successful trial period using the Nalu Neurostimulation trial system. This device is intended to be used in the spinal column as well as the peripheral nerves in arm, leg, pelvic and other areas, as is typical of other devices and treatments for the same intended use. The Nalu System is intended for stimulation of the spinal cord or peripheral nerves for patients experiencing chronic, intractable pain. This system is indicated for pain management in adults who have severe intractable chronic pain, as the sole mitigating agent, or as an adjunct to other modes of therapy used in a multidisciplinary approach. The system is not intended to treat pain in the craniofacial region. The trial devices are solely used for trial stimulation (no longer than 30 days) to determine efficacy before recommendation for a permanent (long term) device. The Nalu System is comprised of the following components: • Implantables (there are no proposed changes to these components as previously provided in K221376): o Implantable pulse generator (IPG; available either as an integrated lead unit or with separately connected lead(s)) – provides electrical stimulation pulses that are transmitted through the leads, to the desired location, either on the spinal cord or peripheral nerve site(s). o Leads – implantable and designed to deliver electrical pulses to the nerves via an array of four (4) or eight (8) cylindrical electrodes at the distal end. o Surgical and Trial Tools – includes anchors, spoonbill needs, stylets, tearaway introducers, pocket tunneler, torque wrench, IPG insertion tool, straw tunneler; tools to support implantation of lead and IPG. - Externals, Non-Sterile: o Externally worn controllers (for use with the permanent implant) and accessories – includes the Therapy Disc, Adhesive Clip, Wearable Garment, Therapy Disc Charger; houses the battery and electronics for RF power and controls the IPG for therapy delivery via the remote programmer (subject of this submission). o Externally worn stimulator (for use with the trial lead) and accessories – includes the Trial Therapy Disc; sends signals to the percutaneous leads during the trial period by way of the Electrode Interface Cable (EIC). • Software (subject of this submission): o Clinician Programmer, Patient Remote Control – used to configure the system parameters; also manages patient records, Therapy Discs and remote controls for patients with the Nalu System; runs on Android and iOS platforms and can be optionally used to control and manage Therapy Discs over a secure Bluetooth® Low Energy connection.