510(k) · Cleared
ClearedPtoleMedic System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Lento Medical Innovation, Inc. · LLZ System, Image Processing, Radiological
Cleared on May 4, 2021 as substantially equivalent to K124051 (Somersault Orthopedics, Inc., 2013) after a 245-day review. Its family tree reaches back 9 generations to 1990.
- Decided
- May 4, 2021
- Review
- 245 days
- Class
- Class II
- Product code
- LLZ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 9 generations to K896095 (1990). 27 ancestors in all. No later device cites it as a predicate yet.
- Root · 9 generations backK896095 Images-on-Call Teleradiology SystemDevices & Services Co. · 1990
- 5 generations between
- 3 generations backK042816 Traumacad 1.2Orthocrat, Ltd. · 2004
- 2 generations backK073714 Traumacad Version 2.0Orthocrat, Ltd. · 2008
- 1 generation backK124051 The Vault SystemSomersault Orthopedics, Inc. · 2013
- This deviceK202521 PtoleMedic SystemLento Medical Innovation, Inc. · 2021
Show all 9 generations
- Root · 9 generations backK896095 Images-on-Call Teleradiology SystemDevices & Services Co. · 1990
- 8 generations backK962699 Radworks Medical Imaging SoftwareApplicare Medical Imaging, B.V. · 1996
- 7 generations backK982862 Radworks Medical Imaging Software with Quality Control ModuleApplicare Medical Imaging, B.V. · 1998
- 6 generations backK012211 Efilm WorkstationEfilm Medical, Inc. · 2001 · Recalled
- 5 generations backK020995 Efilm Workstation with ModulesEfilm Medical, Inc. · 2002 · Recalled
- 4 generations backK032401 OrthoviewOmsbar, Ltd. · 2003
- 3 generations backK042816 Traumacad 1.2Orthocrat, Ltd. · 2004
- 2 generations backK073714 Traumacad Version 2.0Orthocrat, Ltd. · 2008
- 1 generation backK124051 The Vault SystemSomersault Orthopedics, Inc. · 2013
- This deviceK202521 PtoleMedic SystemLento Medical Innovation, Inc. · 2021
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −9 | K896095 | Images-on-Call Teleradiology System | Devices & Services Co. | 1990 | — |
| −8 | K962699 | Radworks Medical Imaging Software | Applicare Medical Imaging, B.V. | 1996 | — |
| −7 | K982862 | Radworks Medical Imaging Software with Quality Control Module | Applicare Medical Imaging, B.V. | 1998 | — |
| −6 | K012211 | Efilm Workstation | Efilm Medical, Inc. | 2001 | 1 |
| −5 | K020995 | Efilm Workstation with Modules | Efilm Medical, Inc. | 2002 | 2 |
| −4 | K032401 | Orthoview | Omsbar, Ltd. | 2003 | — |
| −3 | K042816 | Traumacad 1.2 | Orthocrat, Ltd. | 2004 | — |
| −2 | K073714 | Traumacad Version 2.0 | Orthocrat, Ltd. | 2008 | — |
| −1 | K124051 | The Vault System | Somersault Orthopedics, Inc. | 2013 | — |
| 0 (this device) | K202521 | PtoleMedic System | Lento Medical Innovation, Inc. | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1991 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 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 LLZ? 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 LLZ device
- #1 K230955 syngo Application Softwarescore 21.5 · 11 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 |
|---|---|---|---|
| * | K124051 | The Vault SystemSummary page 4…anning Software Product Name: PtoleMedic System - Surgical Planning Software Regulatory Class: Class II Product Code: LLZ. PREDICATE DEVICE Somersault Vault System, K124051 The predicate device was never the subject of a design-related recall. REFERENCE DEVICE A reference device was used in this sub… | 2013 |
| † | K113599 | Surgicase Connect | 2012 |
What descends from it?
No later submission names this one as a predicate yet.
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 31 years and passes through 7 companies; a new generation was cleared every 2.8 years on median.
- 5 of the 27 ancestors have a recall of any class.
How does its category compare?
All LLZ devicesLLZ System, Image Processing, Radiological: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.
FDA decisions per year · LLZ
58in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LLZ
173in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LLZ
11in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LLZ
116in 2025
MAUDE reports naming product code LLZ, 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 | 76 | 36 | 20 | 152 |
| 2008 | 94 | 52 | 32 | 154 |
| 2009 | 70 | 62 | 21 | 145 |
| 2010 | 51 | 98 | 17 | 145 |
| 2011 | 106 | 79 | 30 | 454 |
| 2012 | 82 | 87 | 12 | 266 |
| 2013 | 95 | 84 | 64 | 1,130 |
| 2014 | 78 | 89 | 6 | 15,631 |
| 2015 | 64 | 90 | 16 | 211 |
| 2016 | 82 | 90 | 12 | 290 |
| 2017 | 78 | 107 | 5 | 104 |
| 2018 | 104 | 105 | 7 | 72 |
| 2019 | 74 | 107 | 2 | 88 |
| 2020 | 81 | 115 | 6 | 82 |
| 2021 | 83 | 116 | 3 | 70 |
| 2022 | 65 | 137 | 4 | 28 |
| 2023 | 87 | 157 | 8 | 26 |
| 2024 | 62 | 131 | 6 | 42 |
| 2025 | 58 | 173 | 11 | 116 |
| 2026 | 45 | 110 | 14 | — |
What is it indicated for?
The PtoleMedic System is an on-line orthopedic surgical planning software system. MRI images supply data sufficient to allow accurate modeling of anatomy for on-line surgical planning before knee joint replacement surgery. The surgeon preoperatively plans, reviews, adjusts and orients implant images to select implant size and create an idealized surgical plan for the first bony cuts only.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K202521 · printed Nov 6, 2026
Cite this page
510(k) Report. “K202521: PtoleMedic System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K202521
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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