510(k) · Cleared
ClearedCONDUIT LLIF Straight Inserters
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Enztec Limited · MAX Intervertebral Fusion Device With Bone Graft, Lumbar
Cleared on Jan 5, 2023 as substantially equivalent to K212823 (Enztec Limited, 2021) after a 29-day review. Its family tree reaches back 25 generations to 1984. 1 of the 217 devices in its family, counting itself, has a Class I recall. 1 later device descends from it.
- Decided
- Jan 5, 2023
- Review
- 29 days
- Class
- Class II
- Product code
- MAX
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 25 generations to K841189 (1984). 215 ancestors in all. 1 later device descends from it, 1 citing it directly. 1 of the 217 devices in this family, counting this one, has a Class I recall.
- Root · 25 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 21 generations between
- 3 generations backK201605 EIT Cellular Titanium Cervical Cage, EIT Cellular Titanium ALIF…Eit Emerging Implant Technologies GmbH · 2020
- 2 generations backK210728 CONDUIT InstrumentsMedos International SARL · 2021
- 1 generation backK212823 DePuy CONDUIT LLIF Angled InsertersEnztec Limited · 2021
- This deviceK223671 CONDUIT LLIF Straight InsertersEnztec Limited · 2023
- Descendant · cites it directly · 0 of its ownK232014 CONDUIT™ ATP InsertersEnztec Limited · 2023
Show all 25 generations
- Root · 25 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 24 generations backK990148 Stackable Cage SystemDepuy Motech Acromed · 1999
- 23 generations backK003043 Surgical Titanium Mesh SystemDepuyacromed · 2001
- 22 generations backK022793 Tetris Spinal ImplantSignus Medical, LLC · 2003
- 21 generations backK031757 Peek Tetris Spinal ImplantSignus Medical, LLC · 2003
- 20 generations backK041888 Curved Peek Tetris Spinal ImplantSignus Medizintechnik GmbH · 2004
- 19 generations backK042930 Spacevision Cage SystemSpine Vision, Inc. · 2004
- 18 generations backK062759 Paramount VBR SystemInnovative Spinal Technologies, Inc. · 2007
- 17 generations backK072120 Paramount Intervertebral Body Fusion DeviceInnovative Spinal Technologies, Inc. · 2007
- 16 generations backK073291 Capstone Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2008
- 15 generations backK094025 Crescent Spinal SystemMedtronic Sofamor Danek · 2010
- 14 generations backK110543 Crescent (R) Spinal System TitaniumMedtronic Sofamor Danek USA, Inc. · 2011
- 13 generations backK121683 Acculif TL CageCoalign Innovations, Inc. · 2012
- 12 generations backK123752 Acculif TL and PL CageCoalign Innovations, Inc. · 2013
- 11 generations backK132505 Acculif TL and PL CageCoalign Innovations, Inc. · 2013 · Recalled
- 10 generations backK141217 Acculif TL and PL CageStryker Corporation · 2014 · Recalled
- 9 generations backK143163 AVS® AL and ALign PEEK Spacers, AVS® PL and UniLIF PEEK Spacers…Stryker Corporation · 2015
- 8 generations backK143616 AccuLIF TL and PL CageStryker Corporation · 2015 · Recalled
- 7 generations backK152304 Tritanium PL CageStryker · 2015 · Recalled
- 6 generations backK160955 Tritanium® PL CageStryker · 2016
- 5 generations backK181014 Tritanium PL CageStryker Spine · 2018
- 4 generations backK183447 EIT Cellular Titanium Lumbar Cage - T/PLIFEit Emerging Implant Technologies GmbH · 2019
- 3 generations backK201605 EIT Cellular Titanium Cervical Cage, EIT Cellular Titanium ALIF…Eit Emerging Implant Technologies GmbH · 2020
- 2 generations backK210728 CONDUIT InstrumentsMedos International SARL · 2021
- 1 generation backK212823 DePuy CONDUIT LLIF Angled InsertersEnztec Limited · 2021
- This deviceK223671 CONDUIT LLIF Straight InsertersEnztec Limited · 2023
Class I recalls in this family
- K073202 Ardis Spacer6 generations back · 2008
Most influential descendants
Showing 1 of 1 · See all- K232014CONDUIT™ ATP InsertersEnztec Limited · 2023 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −25 | K841189 | Oec/Rezaian Spinal Fixator | Orthopedic Equipment Co., Inc. | 1984 | — |
| −24 | K990148 | Stackable Cage System | Depuy Motech Acromed | 1999 | — |
| −23 | K003043 | Surgical Titanium Mesh System | Depuyacromed | 2001 | — |
| −22 | K022793 | Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −21 | K031757 | Peek Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −20 | K041888 | Curved Peek Tetris Spinal Implant | Signus Medizintechnik GmbH | 2004 | — |
| −19 | K042930 | Spacevision Cage System | Spine Vision, Inc. | 2004 | — |
| −18 | K062759 | Paramount VBR System | Innovative Spinal Technologies, Inc. | 2007 | — |
| −17 | K072120 | Paramount Intervertebral Body Fusion Device | Innovative Spinal Technologies, Inc. | 2007 | — |
| −16 | K073291 | Capstone Spinal System | Medtronic Sofamor Danek USA, Inc. | 2008 | — |
| −15 | K094025 | Crescent Spinal System | Medtronic Sofamor Danek | 2010 | — |
| −14 | K110543 | Crescent (R) Spinal System Titanium | Medtronic Sofamor Danek USA, Inc. | 2011 | — |
| −13 | K121683 | Acculif TL Cage | Coalign Innovations, Inc. | 2012 | — |
| −12 | K123752 | Acculif TL and PL Cage | Coalign Innovations, Inc. | 2013 | — |
| −11 | K132505 | Acculif TL and PL Cage | Coalign Innovations, Inc. | 2013 | 3 |
| −10 | K141217 | Acculif TL and PL Cage | Stryker Corporation | 2014 | 3 |
| −9 | K143163 | AVS® AL and ALign PEEK Spacers, AVS® PL and UniLIF PEEK Spacers, AVS® TL PEEK… | Stryker Corporation | 2015 | — |
| −8 | K143616 | AccuLIF TL and PL Cage | Stryker Corporation | 2015 | 4 |
| −7 | K152304 | Tritanium PL Cage | Stryker | 2015 | 1 |
| −6 | K160955 | Tritanium® PL Cage | Stryker | 2016 | — |
| −5 | K181014 | Tritanium PL Cage | Stryker Spine | 2018 | — |
| −4 | K183447 | EIT Cellular Titanium Lumbar Cage - T/PLIF | Eit Emerging Implant Technologies GmbH | 2019 | — |
| −3 | K201605 | EIT Cellular Titanium Cervical Cage, EIT Cellular Titanium ALIF Cage, EIT… | Eit Emerging Implant Technologies GmbH | 2020 | — |
| −2 | K210728 | CONDUIT Instruments | Medos International SARL | 2021 | — |
| −1 | K212823 | DePuy CONDUIT LLIF Angled Inserters | Enztec Limited | 2021 | — |
| 0 (this device) | K223671 | CONDUIT LLIF Straight Inserters | Enztec Limited | 2023 | — |
| +1 | K232014 | CONDUIT™ ATP Inserters | Enztec Limited | 2023 | — |
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 | 21 | 0 |
| 2005 | 17 | 0 |
| 2006 | 4 | 0 |
| 2007 | 10 | 0 |
| 2008 | 31 | 1 |
| 2009 | 20 | 0 |
| 2010 | 9 | 0 |
| 2011 | 15 | 0 |
| 2012 | 5 | 0 |
| 2013 | 5 | 0 |
| 2014 | 8 | 0 |
| 2015 | 2 | 0 |
| 2016 | 1 | 0 |
| 2017 | 3 | 0 |
| 2018 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2023 | 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.
1 device in this family has a Class I recall. 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 |
|---|---|---|---|
| * | K212823 | DePuy CONDUIT LLIF Angled InsertersSummary page 5…Name Manufacturer Predicate Number Type K212823 DePuy CONDUIT™ Angled Inserters DePuy Synthes MAX PERFORMANCE DATA Non-clinical test… | 2021 |
| † | K201605 | EIT Cellular Titanium Cervical Cage, EIT Cellular Titanium ALIF Cage, EIT Cellular… | 2020 |
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 |
|---|---|---|---|
| K232014 | CONDUIT™ ATP Inserters | 2023 | 0 |
Has anything in its family been recalled? (1 Class I)
No FDA recall names this device.
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K073202Ardis SpacerAbbott Spine, Inc. · 2008 · 6 generations back · ◆ in the 2008 ancestors bar of FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 39 years and passes through 16 companies; a new generation was cleared every 10 months on median.
- 25 of the 215 ancestors have a recall of any class; 1 has a Class I recall.
- Of its descendants, K232014 (Enztec Limited, 2023) has gone furthest, with 0 descendants of its own.
- 1 other device also cites its predicate K212823.
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?
The CONDUIT™ LLIF Straight Inserters are intended to be used with the EIT Cellular Titanium® LLIF Cages. EIT Cellular Titanium® LLIF Cage The EIT Cellular Titanium® LLIF Cages with a microscopic roughened surface and micro and nanoscale features are 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…
Read the full statement (148 words)
The CONDUIT™ LLIF Straight Inserters are intended to be used with the EIT Cellular Titanium® LLIF Cages.
EIT Cellular Titanium® LLIF Cage
The EIT Cellular Titanium® LLIF Cages with a microscopic roughened surface and micro and nanoscale features are 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). These spinal implants are to be used with autogenous bone graft and/or allogeneic bone graft comprised of cancellous and/or corticocancellous bone graft. EIT Spine LLIF 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/K223671 · printed Nov 4, 2026
Cite this page
510(k) Report. “K223671: CONDUIT LLIF Straight Inserters.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K223671
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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