# K181483: Tranquil Interbody System

- Pathway: 510(k) (Traditional)
- Applicant: Nexus Spine, LLC
- Decided: Aug 27, 2018 after 83 days
- Product code: MAX (Intervertebral Fusion Device With Bone Graft, Lumbar)
- Device class: 2
- Regulation: 21 CFR 888.3080
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 17 generations back to K841189 (1984). 158 ancestors in all.
6 later devices descend from it; 3 cite it directly.
1 of 165 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K170297: Tranquil Interbody System, Nexus Spine, LLC (2017) Summary page 4.
- K170676: HD Lumbar Interbody System, Hd Lifesciences, LLC (2017) Summary page 4.
- K172888: EIT Cellular Titanium® Cervical Cages, EIT Cellular Titanium® PLIF Cages, EIT Cellular Titanium® TLIF Cages, EIT Cellular Titanium® ALIF Cages, Eit Emerging Implant Technologies GmbH (2017) Summary page 4.

## Most influential descendants
- K240416: Tranquil-C Interbody System (2024), 3 descendants of its own
- K241467: Stable-C Interbody System (2024), 2 descendants of its own
- K261279: DeltaNEC Interbody System (2026), 0 descendants of its own
- K243934: Stable-L Lumbar Interbody System (2025), 0 descendants of its own
- K233375: Tranquil-L Interbody System (2024), 0 descendants of its own

## Indications for use
Tranquil-C™ Interbody System The Tranquil-C™ Interbody System is intended for use for anterior cervical interbody fusion in skeletally mature patients with cervical disc degeneration and/or cervical spinal instability, as confirmed by imaging studies (radiographs, CT, MRI), that results in radiculopathy, myelopathy, and/or pain at multiple contiguous levels from C2 – T1. The Tranquil-C™ Interbody System is also to be used with supplemental fixation systems that have been cleared for use in the cervical spine. The Tranquil-C™ Interbody System is designed for use with autogenous and/or allogeneic bone graft comprised of cancellous and/or corticocancellous bone graft to facilitate fusion. Tranquil-L™ Interbody System The Tranquil-L™ Interbody System is intended for use in skeletally mature patients with Degenerative Disc Disease (DDD) at one or two contiguous levels from L2 – S1. DDD is defined as discogenic back pain with degeneration of the disc confirmed by patient history and radiographic studies. Patients should have received 6 months of non-operative treatment prior to treatment with the devices. The device must be used with supplemental fixation. These DDD patients may also have up to Grade I spondylolisthesis or retrolisthesis at the involved level(s). It is indicated to be used with autograft bone and/or allograft bone comprised of cancellous and/or corticocancellous bone.

Source page: https://510kreport.com/device/K181483
Methodology: https://510kreport.com/methodology