510(k) · Cleared
ClearedPractical Navigation Surgical Guidance System (PNSGS)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Practical Navigation, LLC · OLO Orthopedic Stereotaxic Instrument
Cleared on Feb 24, 2021 as substantially equivalent to K171651 (Globus Medical, Inc., 2017) after a 204-day review. Its family tree reaches back 19 generations to 2004. 1 of the 433 devices in its family, counting itself, has a Class I recall. 5 later devices descend from it.
- Decided
- Feb 24, 2021
- Review
- 204 days
- Class
- Class II
- Product code
- OLO
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 19 generations to K040583 (2004). 427 ancestors in all, the oldest K781443 (1978). 5 later devices descend from it, 1 citing it directly. 1 of the 433 devices in this family, counting this one, has a Class I recall.
- Root · 19 generations backK040583 Modification to: CD Horizon Spinal SystemMedtronic Sofamor Danek · 2004
- 15 generations between
- 3 generations backK153203 Navigation InstrumentsGlobus Medical, Inc. · 2016
- 2 generations backK161591 QUARTEX™ Occipito-Cervico-Thoracic Spinal System, Globus Navigation…Globus Medical, Inc. · 2016
- 1 generation backK171651 Excelsius GPSGlobus Medical, Inc. · 2017 · Recalled
- This deviceK202184 Practical Navigation Surgical Guidance System (PNSGS)Practical Navigation, LLC · 2021
- Descendant · cites it directly · 4 of its ownK223070 Remi Robotic Navigation SystemFusion Robotics, LLC · 2022
- Descendant · 2 generations on · 2 of its ownK232413 Fusion Robotic Navigation SystemAlphatec Spine, Inc. · 2023
- Descendant · 3 generations on · 1 of its ownK252597 Valence Robotic Navigation System; Valence Robotic Navigation…Alphatec Spine, Inc. · 2026
- Descendant · 4 generations on · 0 of its ownK261284 Invictus® Small Stature Spinal Fixation System; Invictus® 2.0 Spinal…Alphatec Spine, Inc. · 2026
- Descendant · 2 generations on · 0 of its ownK223350 Remi Robotic Navigation SystemFusion Robotics, LLC · 2023
Show all 19 generations
- Root · 19 generations backK040583 Modification to: CD Horizon Spinal SystemMedtronic Sofamor Danek · 2004
- 18 generations backK041118 Modification to CD Horizon Spinal SystemMedtronic Sofamor Danek · 2004
- 17 generations backK042025 Modification to CD Horizon Spinal SystemMedtronic Sofamor Danek, Inc. · 2004 · Recalled
- 16 generations backK043151 Modification to: CD Horizon Spinal SystemMedtronic Sofamor Danek · 2005
- 15 generations backK050809 CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2005
- 14 generations backK052187 Modification to: CD Horizon Spinal SystemMedtronic Sofamor Danek · 2005
- 13 generations backK053101 CD Horizon Spinal SystemMedtronic Sofamor Danek · 2006
- 12 generations backK091442 CD Horizon Spinal SystemMedtronic Sofamor Danek · 2009
- 11 generations backK091974 Modification to CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2009 · Recalled
- 10 generations backK102555 CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2010
- 9 generations backK112473 CD Horizon Spinal SystemMedtronic Sofamor Danek, Inc. · 2011
- 8 generations backK113174 CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2011 · Recalled
- 7 generations backK121680 CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2012
- 6 generations backK122862 CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2012
- 5 generations backK141605 CD Horizon Spinal SystemMedtronic Sofamor Danek USA, Inc. · 2014
- 4 generations backK143375 CD HORIZON Spinal System, Medtronic Navigated Reusable InstrumentsMedtronic Sofamor Danek USA, Inc. · 2015
- 3 generations backK153203 Navigation InstrumentsGlobus Medical, Inc. · 2016
- 2 generations backK161591 QUARTEX™ Occipito-Cervico-Thoracic Spinal System, Globus Navigation…Globus Medical, Inc. · 2016
- 1 generation backK171651 Excelsius GPSGlobus Medical, Inc. · 2017 · Recalled
- This deviceK202184 Practical Navigation Surgical Guidance System (PNSGS)Practical Navigation, LLC · 2021
Class I recalls in this family
- K100952 Modification to Synthes Matrix System4 generations back · 2010
Most influential descendants
Showing 5 of 5 · See all- K223070Remi Robotic Navigation SystemFusion Robotics, LLC · 2022 · cites it directly4descendants
- K232413Fusion Robotic Navigation SystemAlphatec Spine, Inc. · 2023 · 2 generations on2descendants
- K252597Valence Robotic Navigation System; Valence Robotic Navigation Instruments (For Use with…Alphatec Spine, Inc. · 2026 · 3 generations on1descendant
- K261284Invictus® Small Stature Spinal Fixation System; Invictus® 2.0 Spinal Fixation SystemAlphatec Spine, Inc. · 2026 · 4 generations on0descendants
- K223350Remi Robotic Navigation SystemFusion Robotics, LLC · 2023 · 2 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −19 | K040583 | Modification to: CD Horizon Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −18 | K041118 | Modification to CD Horizon Spinal System | Medtronic Sofamor Danek | 2004 | — |
| −17 | K042025 | Modification to CD Horizon Spinal System | Medtronic Sofamor Danek, Inc. | 2004 | 4 |
| −16 | K043151 | Modification to: CD Horizon Spinal System | Medtronic Sofamor Danek | 2005 | — |
| −15 | K050809 | CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2005 | — |
| −14 | K052187 | Modification to: CD Horizon Spinal System | Medtronic Sofamor Danek | 2005 | — |
| −13 | K053101 | CD Horizon Spinal System | Medtronic Sofamor Danek | 2006 | — |
| −12 | K091442 | CD Horizon Spinal System | Medtronic Sofamor Danek | 2009 | — |
| −11 | K091974 | Modification to CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2009 | 1 |
| −10 | K102555 | CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2010 | — |
| −9 | K112473 | CD Horizon Spinal System | Medtronic Sofamor Danek, Inc. | 2011 | — |
| −8 | K113174 | CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2011 | 1 |
| −7 | K121680 | CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2012 | — |
| −6 | K122862 | CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2012 | — |
| −5 | K141605 | CD Horizon Spinal System | Medtronic Sofamor Danek USA, Inc. | 2014 | — |
| −4 | K143375 | CD HORIZON Spinal System, Medtronic Navigated Reusable Instruments | Medtronic Sofamor Danek USA, Inc. | 2015 | — |
| −3 | K153203 | Navigation Instruments | Globus Medical, Inc. | 2016 | — |
| −2 | K161591 | QUARTEX™ Occipito-Cervico-Thoracic Spinal System, Globus Navigation Instruments | Globus Medical, Inc. | 2016 | — |
| −1 | K171651 | Excelsius GPS | Globus Medical, Inc. | 2017 | 1 |
| 0 (this device) | K202184 | Practical Navigation Surgical Guidance System (PNSGS) | Practical Navigation, LLC | 2021 | — |
| +1 | K223070 | Remi Robotic Navigation System | Fusion Robotics, LLC | 2022 | — |
| +2 | K232413 | Fusion Robotic Navigation System | Alphatec Spine, Inc. | 2023 | — |
| +3 | K252597 | Valence Robotic Navigation System; Valence Robotic Navigation Instruments (For… | Alphatec Spine, Inc. | 2026 | — |
| +4 | K261284 | Invictus® Small Stature Spinal Fixation System; Invictus® 2.0 Spinal Fixation… | Alphatec Spine, Inc. | 2026 | — |
| +2 | K223350 | Remi Robotic Navigation System | Fusion Robotics, LLC | 2023 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1981 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 15 | 0 |
| 1996 | 15 | 0 |
| 1997 | 12 | 0 |
| 1998 | 17 | 0 |
| 1999 | 16 | 0 |
| 2000 | 26 | 0 |
| 2001 | 32 | 0 |
| 2002 | 22 | 0 |
| 2003 | 21 | 0 |
| 2004 | 36 | 0 |
| 2005 | 34 | 0 |
| 2006 | 23 | 0 |
| 2007 | 13 | 0 |
| 2008 | 24 | 0 |
| 2009 | 15 | 0 |
| 2010 | 14 | 1 |
| 2011 | 13 | 0 |
| 2012 | 5 | 0 |
| 2013 | 6 | 0 |
| 2014 | 5 | 0 |
| 2015 | 6 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2022 | 1 | 0 |
| 2023 | 2 | 0 |
| 2026 | 2 | 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 OLO device
- #1 K240662 Spine Guidance Software (version 5.0); Xia 3/…score 23.7 · 15 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.
What descends from it? (5)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K223070 | Remi Robotic Navigation System | 2022 | 4 |
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.
- K100952Modification to Synthes Matrix SystemSynthes Spine · 2010 · 4 generations back · ◆ in the 2010 ancestors bar of FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 17 years and passes through 5 companies; a new generation was cleared every 7 months on median.
- 59 of the 427 ancestors have a recall of any class; 1 has a Class I recall.
- Of its descendants, K223070 (Fusion Robotics, LLC, 2022) has gone furthest, with 4 descendants of its own.
- 27 other devices also cite its predicate K171651.
How does its category compare?
All OLO devicesOLO Orthopedic Stereotaxic Instrument: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.
FDA decisions per year · OLO
40in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · OLO
119in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · OLO
1in 2025
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · OLO
3,306in 2025
MAUDE reports naming product code OLO, 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 | 0 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 1 |
| 2009 | 11 | 126 | 0 | 4 |
| 2010 | 9 | 113 | 1 | 4 |
| 2011 | 11 | 138 | 1 | 10 |
| 2012 | 7 | 129 | 1 | 60 |
| 2013 | 7 | 137 | 0 | 36 |
| 2014 | 10 | 119 | 3 | 245 |
| 2015 | 10 | 176 | 2 | 466 |
| 2016 | 14 | 120 | 3 | 750 |
| 2017 | 33 | 91 | 2 | 1,076 |
| 2018 | 24 | 97 | 1 | 1,230 |
| 2019 | 35 | 95 | 1 | 1,585 |
| 2020 | 34 | 89 | 6 | 2,746 |
| 2021 | 28 | 91 | 0 | 1,696 |
| 2022 | 40 | 89 | 5 | 1,568 |
| 2023 | 45 | 90 | 7 (1) | 1,493 |
| 2024 | 44 | 90 | 4 | 2,353 |
| 2025 | 40 | 119 | 1 | 3,306 |
| 2026 | 42 | 109 | 6 | — |
What is it indicated for?
The Practical Navigation Surgical Guidance System is intended for use as an aid for precisely locating anatomical structures and for the spatial positioning and orientation of a tool holder or Guide Tube to be used by surgeons for navigating and/or guiding compatible surgical instruments in open or percutaneous spinal procedures in reference to rigid patient anatomy and fiducials that can be identified on an O-arm scan. The Practical Navigation Surgical…
Read the full statement (116 words)
The Practical Navigation Surgical Guidance System is intended for use as an aid for precisely locating anatomical structures and for the spatial positioning and orientation of a tool holder or Guide Tube to be used by surgeons for navigating and/or guiding compatible surgical instruments in open or percutaneous spinal procedures in reference to rigid patient anatomy and fiducials that can be identified on an O-arm scan. The Practical Navigation Surgical Guidance System is indicated for assisting the surgeon in placing pedicle screws in vertebrae in the posterior lumbar region (L1-S1).
The system is designed for lumbar pedicle screw placement with the patient in the prone position and is compatible with the Integrity LineSider Pedicle Spinal System.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K202184 · printed Nov 6, 2026
Cite this page
510(k) Report. “K202184: Practical Navigation Surgical Guidance System (PNSGS).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K202184
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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