510(k) · Cleared
ClearedDouble Medical Cage System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Double Medical Technology, Inc. · MAX Intervertebral Fusion Device With Bone Graft, Lumbar
Cleared on Feb 1, 2018 as substantially equivalent to K133053 (Weigao Orthopaedic Device Co., Ltd., 2014) and 1 other predicate after a 136-day review. Its family tree reaches back 11 generations to 1984. 1 later device descends from it.
- Decided
- Feb 1, 2018
- Review
- 136 days
- Class
- Class II
- Product code
- MAX
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 11 generations to K841189 (1984). 30 ancestors in all. 1 later device descends from it, 1 citing it directly.
- Root · 11 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 7 generations between
- 3 generations backK072120 Paramount Intervertebral Body Fusion DeviceInnovative Spinal Technologies, Inc. · 2007
- 2 generations backK073291 Capstone Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2008
- 1 generation backK133053 Milestone Spinal SystemWeigao Orthopaedic Device Co., Ltd. · 2014
- This deviceK172828 Double Medical Cage SystemDouble Medical Technology, Inc. · 2018
- Descendant · cites it directly · 0 of its ownK253151 Fule Interbody Fusion Cage SystemBeijing Fule Science & Technology Development Co., Ltd. · 2026
Show all 11 generations
- Root · 11 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 10 generations backK990148 Stackable Cage SystemDepuy Motech Acromed · 1999
- 9 generations backK003043 Surgical Titanium Mesh SystemDepuyacromed · 2001
- 8 generations backK022793 Tetris Spinal ImplantSignus Medical, LLC · 2003
- 7 generations backK031757 Peek Tetris Spinal ImplantSignus Medical, LLC · 2003
- 6 generations backK041888 Curved Peek Tetris Spinal ImplantSignus Medizintechnik GmbH · 2004
- 5 generations backK042930 Spacevision Cage SystemSpine Vision, Inc. · 2004
- 4 generations backK062759 Paramount VBR SystemInnovative Spinal Technologies, Inc. · 2007
- 3 generations backK072120 Paramount Intervertebral Body Fusion DeviceInnovative Spinal Technologies, Inc. · 2007
- 2 generations backK073291 Capstone Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2008
- 1 generation backK133053 Milestone Spinal SystemWeigao Orthopaedic Device Co., Ltd. · 2014
- This deviceK172828 Double Medical Cage SystemDouble Medical Technology, Inc. · 2018
Most influential descendants
Showing 1 of 1 · See all- K253151Fule Interbody Fusion Cage SystemBeijing Fule Science & Technology Development Co., Ltd. · 2026 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −11 | K841189 | Oec/Rezaian Spinal Fixator | Orthopedic Equipment Co., Inc. | 1984 | — |
| −10 | K990148 | Stackable Cage System | Depuy Motech Acromed | 1999 | — |
| −9 | K003043 | Surgical Titanium Mesh System | Depuyacromed | 2001 | — |
| −8 | K022793 | Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −7 | K031757 | Peek Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −6 | K041888 | Curved Peek Tetris Spinal Implant | Signus Medizintechnik GmbH | 2004 | — |
| −5 | K042930 | Spacevision Cage System | Spine Vision, Inc. | 2004 | — |
| −4 | K062759 | Paramount VBR System | Innovative Spinal Technologies, Inc. | 2007 | — |
| −3 | K072120 | Paramount Intervertebral Body Fusion Device | Innovative Spinal Technologies, Inc. | 2007 | — |
| −2 | K073291 | Capstone Spinal System | Medtronic Sofamor Danek USA, Inc. | 2008 | — |
| −1 | K133053 | Milestone Spinal System | Weigao Orthopaedic Device Co., Ltd. | 2014 | — |
| 0 (this device) | K172828 | Double Medical Cage System | Double Medical Technology, Inc. | 2018 | — |
| +1 | K253151 | Fule Interbody Fusion Cage System | Beijing Fule Science & Technology Development Co., Ltd. | 2026 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 0 |
| 2003 | 2 | 0 |
| 2004 | 4 | 0 |
| 2005 | 1 | 0 |
| 2010 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2026 | 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? (2)
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 |
|---|---|---|---|
| * | K133053 | Milestone Spinal SystemSummary page 4…l Body Fusion Device Regulation Number: 21 CFR 888.3080 Regulatory Classification: Class II Product Code: MAX Predicate Device Primary predicate device: K133053 Weigao Milestone Spinal System Additional Predicates: K100089 Synthes T-PAL Spacer Device Description Doub… | 2014 |
| * | K100089 | Synthes T-Pal SpacerSummary page 4…assification: Class II Product Code: MAX Predicate Device Primary predicate device: K133053 Weigao Milestone Spinal System Additional Predicates: K100089 Synthes T-PAL Spacer Device Description Double Medical Cage System consists of cages of various lengths and heights, wh… | 2010 |
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 |
|---|---|---|---|
| K253151 | Fule Interbody Fusion Cage System | 2026 | 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 34 years and passes through 10 companies; a new generation was cleared every 1.7 years on median.
- 5 of the 30 ancestors have a recall of any class.
- Of its descendants, K253151 (Beijing Fule Science & Technology Development Co., Ltd., 2026) has gone furthest, with 0 descendants of its own.
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. 2018, 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?
Double Medical Cage System is indicated for use in patients with degenerative disc disease (DDD) at one or two levels from L2 to L5 whose condition requires the use of interbody fusion combined with supplemental fixation. DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies. These patients should be skeletally mature and have had six months of non-operative treatment. The Cage should be packed with autogenous bone graft (i.e. autograft).
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K172828 · printed Nov 6, 2026
Cite this page
510(k) Report. “K172828: Double Medical Cage System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K172828
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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