510(k) · Cleared
ClearedAccelFix Lumbar Expandable Cage System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
L&K BIOMED Co., Ltd. · MAX Intervertebral Fusion Device With Bone Graft, Lumbar
Cleared on Aug 24, 2023 as substantially equivalent to K190708 (L&K BIOMED Co., Ltd., 2019) after a 76-day review. Its family tree reaches back 22 generations to 1984. 1 later device descends from it.
- Decided
- Aug 24, 2023
- Review
- 76 days
- Class
- Class II
- Product code
- MAX
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 22 generations to K841189 (1984). 236 ancestors in all. 1 later device descends from it, 1 citing it directly.
- Root · 22 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 18 generations between
- 3 generations backK162879 Elite Expandable Interbody Fusion DeviceSpineology, Inc. · 2017
- 2 generations backK171425 Concorde LiftMedos International SARL · 2017 · Recalled
- 1 generation backK190708 AccelFix Lumbar Interbody Fusion Cage SystemL&K BIOMED Co., Ltd. · 2019
- This deviceK231680 AccelFix Lumbar Expandable Cage SystemL&K BIOMED Co., Ltd. · 2023
- Descendant · cites it directly · 0 of its ownK242829 BluEX Lumbar Expandable Cage SystemL&K BIOMED Co., Ltd. · 2024
Show all 22 generations
- Root · 22 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 21 generations backK990148 Stackable Cage SystemDepuy Motech Acromed · 1999
- 20 generations backK003043 Surgical Titanium Mesh SystemDepuyacromed · 2001
- 19 generations backK022793 Tetris Spinal ImplantSignus Medical, LLC · 2003
- 18 generations backK031757 Peek Tetris Spinal ImplantSignus Medical, LLC · 2003
- 17 generations backK041888 Curved Peek Tetris Spinal ImplantSignus Medizintechnik GmbH · 2004
- 16 generations backK042930 Spacevision Cage SystemSpine Vision, Inc. · 2004
- 15 generations backK062759 Paramount VBR SystemInnovative Spinal Technologies, Inc. · 2007
- 14 generations backK072120 Paramount Intervertebral Body Fusion DeviceInnovative Spinal Technologies, Inc. · 2007
- 13 generations backK073291 Capstone Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2008
- 12 generations backK094025 Crescent Spinal SystemMedtronic Sofamor Danek · 2010
- 11 generations backK110543 Crescent (R) Spinal System TitaniumMedtronic Sofamor Danek USA, Inc. · 2011
- 10 generations backK121683 Acculif TL CageCoalign Innovations, Inc. · 2012
- 9 generations backK123752 Acculif TL and PL CageCoalign Innovations, Inc. · 2013
- 8 generations backK132505 Acculif TL and PL CageCoalign Innovations, Inc. · 2013 · Recalled
- 7 generations backK141217 Acculif TL and PL CageStryker Corporation · 2014 · Recalled
- 6 generations backK143163 AVS® AL and ALign PEEK Spacers, AVS® PL and UniLIF PEEK Spacers…Stryker Corporation · 2015
- 5 generations backK150788 Talos Intervertebral Body Fusion Devices, Talos -C Cervical…Meditech Spine, LLC · 2015
- 4 generations backK160906 Rampart O Lumbar Interbody Fusion Device, Rampart T Lumbar Interbody…Spineology, Inc. · 2016
- 3 generations backK162879 Elite Expandable Interbody Fusion DeviceSpineology, Inc. · 2017
- 2 generations backK171425 Concorde LiftMedos International SARL · 2017 · Recalled
- 1 generation backK190708 AccelFix Lumbar Interbody Fusion Cage SystemL&K BIOMED Co., Ltd. · 2019
- This deviceK231680 AccelFix Lumbar Expandable Cage SystemL&K BIOMED Co., Ltd. · 2023
Most influential descendants
Showing 1 of 1 · See all- K242829BluEX Lumbar Expandable Cage SystemL&K BIOMED Co., Ltd. · 2024 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −22 | K841189 | Oec/Rezaian Spinal Fixator | Orthopedic Equipment Co., Inc. | 1984 | — |
| −21 | K990148 | Stackable Cage System | Depuy Motech Acromed | 1999 | — |
| −20 | K003043 | Surgical Titanium Mesh System | Depuyacromed | 2001 | — |
| −19 | K022793 | Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −18 | K031757 | Peek Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −17 | K041888 | Curved Peek Tetris Spinal Implant | Signus Medizintechnik GmbH | 2004 | — |
| −16 | K042930 | Spacevision Cage System | Spine Vision, Inc. | 2004 | — |
| −15 | K062759 | Paramount VBR System | Innovative Spinal Technologies, Inc. | 2007 | — |
| −14 | K072120 | Paramount Intervertebral Body Fusion Device | Innovative Spinal Technologies, Inc. | 2007 | — |
| −13 | K073291 | Capstone Spinal System | Medtronic Sofamor Danek USA, Inc. | 2008 | — |
| −12 | K094025 | Crescent Spinal System | Medtronic Sofamor Danek | 2010 | — |
| −11 | K110543 | Crescent (R) Spinal System Titanium | Medtronic Sofamor Danek USA, Inc. | 2011 | — |
| −10 | K121683 | Acculif TL Cage | Coalign Innovations, Inc. | 2012 | — |
| −9 | K123752 | Acculif TL and PL Cage | Coalign Innovations, Inc. | 2013 | — |
| −8 | K132505 | Acculif TL and PL Cage | Coalign Innovations, Inc. | 2013 | 3 |
| −7 | K141217 | Acculif TL and PL Cage | Stryker Corporation | 2014 | 3 |
| −6 | K143163 | AVS® AL and ALign PEEK Spacers, AVS® PL and UniLIF PEEK Spacers, AVS® TL PEEK… | Stryker Corporation | 2015 | — |
| −5 | K150788 | Talos Intervertebral Body Fusion Devices, Talos -C Cervical Intervertebral… | Meditech Spine, LLC | 2015 | — |
| −4 | K160906 | Rampart O Lumbar Interbody Fusion Device, Rampart T Lumbar Interbody Fusion… | Spineology, Inc. | 2016 | — |
| −3 | K162879 | Elite Expandable Interbody Fusion Device | Spineology, Inc. | 2017 | — |
| −2 | K171425 | Concorde Lift | Medos International SARL | 2017 | 2 |
| −1 | K190708 | AccelFix Lumbar Interbody Fusion Cage System | L&K BIOMED Co., Ltd. | 2019 | — |
| 0 (this device) | K231680 | AccelFix Lumbar Expandable Cage System | L&K BIOMED Co., Ltd. | 2023 | — |
| +1 | K242829 | BluEX Lumbar Expandable Cage System | L&K BIOMED Co., Ltd. | 2024 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 10 | 0 |
| 2002 | 8 | 0 |
| 2003 | 15 | 0 |
| 2004 | 17 | 0 |
| 2005 | 15 | 0 |
| 2006 | 5 | 0 |
| 2007 | 11 | 0 |
| 2008 | 31 | 0 |
| 2009 | 22 | 0 |
| 2010 | 16 | 0 |
| 2011 | 16 | 0 |
| 2012 | 11 | 0 |
| 2013 | 14 | 0 |
| 2014 | 8 | 0 |
| 2015 | 5 | 0 |
| 2016 | 3 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2024 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in MAX? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new MAX device
- #1 K203714 NuVasive Thoracolumbar Interbody Systems…score 102.5 · 24 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K190708 | AccelFix Lumbar Interbody Fusion Cage SystemSummary page 4…ce ‘AccelFix Lumbar Expandable Cage System’ is substantially equivalent to the predicate device. Primary Predicate Device: AccelFix Lumbar Expandable Cage System (K190708) 4. DESCRIPTION OF THE DEVICE The AccelFix Lumbar Expandable Cage System’s implants are interbody fusion devices intended for… | 2019 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K242829 | BluEX Lumbar Expandable Cage System | 2024 | 0 |
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 39 years and passes through 15 companies; a new generation was cleared every 10 months on median.
- 28 of the 236 ancestors have a recall of any class.
- Of its descendants, K242829 (L&K BIOMED Co., Ltd., 2024) has gone furthest, with 0 descendants of its own.
- 1 other device also cites its predicate K190708.
How does its category compare?
All MAX devicesMAX Intervertebral Fusion Device With Bone Graft, Lumbar: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.
FDA decisions per year · MAX
29in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · MAX
85in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MAX
5in 2025
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · MAX
811in 2025
MAUDE reports naming product code MAX, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 7 | 86 | 0 | 12 |
| 2008 | 35 | 88 | 2 | 19 |
| 2009 | 31 | 102 | 9 | 90 |
| 2010 | 29 | 137 | 0 | 154 |
| 2011 | 49 | 98 | 3 | 201 |
| 2012 | 48 | 69 | 11 (1) | 327 |
| 2013 | 58 | 102 | 0 | 380 |
| 2014 | 58 | 115 | 3 | 366 |
| 2015 | 53 | 113 | 1 | 524 |
| 2016 | 64 | 124 | 6 | 647 |
| 2017 | 76 | 116 | 1 | 596 |
| 2018 | 64 | 114 | 4 | 616 |
| 2019 | 60 | 131 | 1 | 699 |
| 2020 | 56 | 106 | 0 | 640 |
| 2021 | 53 | 109 | 0 | 622 |
| 2022 | 41 | 95 | 1 | 618 |
| 2023 | 30 | 87 | 0 | 576 |
| 2024 | 38 | 91 | 1 | 729 |
| 2025 | 29 | 85 | 5 | 811 |
| 2026 | 18 | 95 | 0 | — |
What is it indicated for?
AccelFix Lumbar Expandable Cage System is indicated for intervertebral body fusion procedures 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. These DDD patients may also have up to Grade 1 spondylolisthesis or retrolisthesis at the involved level(s). This device is to be…
Read the full statement (115 words)
AccelFix Lumbar Expandable Cage System is indicated for intervertebral body fusion procedures 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. These DDD patients may also have up to Grade 1 spondylolisthesis or retrolisthesis at the involved level(s). This device is to be used with autogenous bone graft and/or allogenous bone graft composed of cancellous and/or corticocancellous bone. AccelFix Lumbar Expandable Cage System is to be used with supplemental fixation. Patients should have at least six (6) months of non-operative treatment prior to treatment with an intervertebral cage.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K231680 · printed Nov 5, 2026
Cite this page
510(k) Report. “K231680: AccelFix Lumbar Expandable Cage System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K231680
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026