510(k) Report

510(k) · Cleared

Cleared

P-Cure Proton Beam Therapy System

K221996510(k) TraditionalCleared Mar 20, 2023257-day reviewClass II21 CFR 892.5050

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

P-Cure, Ltd. · LHN System, Radiation Therapy, Charged-Particle, Medical

Cleared on Mar 20, 2023 as substantially equivalent to K191521 (Protom International Holding Corporation, 2019) after a 257-day review. Its family tree reaches back 7 generations to 1988. 1 later device descends from it.

Decided
Mar 20, 2023
Review
257 days
Class
Class II
Product code
LHN
Recalls
None
Predicates
1

Its longest line of descent runs back 7 generations to K872369 (1988). 11 ancestors in all. 1 later device descends from it, 1 citing it directly.

  1. Root · 7 generations backK872369 Loma Linda Univ. Proton Beam Therapy SystemLoma Linda University Medical Center · 1988
  2. 6 generations backK983024 Proton Therapy SystemIon Beam Applications S.A. · 2001
  3. 5 generations backK053641 Iba Proton Therapy System-Proteus 235Ion Beam Applications S.A. · 2006
  4. 4 generations backK060695 Iba Proton Therapy System - Proteus 235Ion Beam Applications S.A. · 2006 · Recalled
  5. 3 generations backK073059 Probeat with Discrete Spot Scanning SystemHitachi, Ltd., Power Systems Group · 2007 · Recalled
  6. 2 generations backK134052 Radiance 330 Proton Therapy SystemProtom International, Inc. · 2014
  7. 1 generation backK191521 Radiance 330 Proton Beam Therapy SystemProtom International Holding Corporation · 2019
  8. This deviceK221996 P-Cure Proton Beam Therapy SystemP-Cure, Ltd. · 2023
  9. Descendant · cites it directly · 0 of its ownK242418 P-Cure Proton Therapy System (PPTS)P-Cure, Ltd. · 2025

Most influential descendants

Showing 1 of 1 · See all
  • K242418P-Cure Proton Therapy System (PPTS)P-Cure, Ltd. · 2025 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−7K872369Loma Linda Univ. Proton Beam Therapy SystemLoma Linda University Medical Center1988—
−6K983024Proton Therapy SystemIon Beam Applications S.A.2001—
−5K053641Iba Proton Therapy System-Proteus 235Ion Beam Applications S.A.2006—
−4K060695Iba Proton Therapy System - Proteus 235Ion Beam Applications S.A.20062
−3K073059Probeat with Discrete Spot Scanning SystemHitachi, Ltd., Power Systems Group20071
−2K134052Radiance 330 Proton Therapy SystemProtom International, Inc.2014—
−1K191521Radiance 330 Proton Beam Therapy SystemProtom International Holding Corporation2019—
0 (this device)K221996P-Cure Proton Beam Therapy SystemP-Cure, Ltd.2023—
+1K242418P-Cure Proton Therapy System (PPTS)P-Cure, Ltd.2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200010
200620
200810

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202510
FIG. 1 — Lineage of K221996, 1988–2025Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

Notable FDA decisions, review times and new Class I recalls. See an issue.

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 LHN? 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 LHN device

  1. #1 K260597 Virtue QAscore 15.4 · 12 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) 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.

TypeNumberDeviceApplicantDecidedRecalls
*K191521Radiance 330 Proton Beam Therapy System
Summary page 4
…92.5050 Regulatory Class: Class II Product Code: LHN Predicate Device ProTom International Holding Corp. Radiance 330 Proton Beam Therapy System (K191521) Device Description: The P-CURE system is a medical device designed to produce and deliver a proton beam for the tr…
Protom International Holding Corporation2019—

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K242418P-Cure Proton Therapy System (PPTS)P-Cure, Ltd.20250

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 35 years and passes through 6 companies; a new generation was cleared every 4.5 years on median.
  • 3 of the 11 ancestors have a recall of any class.
  • Of its descendants, K242418 (P-Cure, Ltd., 2025) has gone furthest, with 0 descendants of its own.

How does its category compare?

All LHN devices

LHN System, Radiation Therapy, Charged-Particle, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.

FDA decisions per year · LHN

3in 2025

2007: 22008: 32009: 52010: 42011: 12012: 32013: 32014: 42015: 32016: 72017: 42018: 32019: 22020: 42022: 22023: 22024: 12025: 32026 (partial year): 4
2007high 7 (2016) · low 0 (2021)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LHN

190in 2025

2008: 113 days median2009: 69 days median2010: 96 days median2012: 111 days median2013: 70 days median2014: 93 days median2015: 53 days median2016: 120 days median2017: 173 days median2018: 78 days median2020: 74 days median2025: 190 days median2026 (partial year): 194 days median
2007high 194 (2026) · low 53 (2015)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · LHN

1in 2023

2007: 22008: 22014: 22015: 12017: 52018: 22020: 12021: 12022: 22023: 1
2007high 5 (2017) · low 0 (2009)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · LHN

11in 2025

2008: 12009: 52010: 32011: 12012: 12013: 12014: 52015: 22016: 12017: 72018: 82019: 32020: 202021: 242022: 102023: 72024: 22025: 11
2007high 24 (2021) · low 0 (2007)2025

MAUDE reports naming product code LHN, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20072—20
2008311321
200956905
201049603
20111—01
2012311101
201337001
201449325
201535312
2016712001
2017417357
201837828
20192—03
2020474120
20210—124
20222—210
20232—17
20241—02
20253190011
202641940—

What is it indicated for?

The P-Cure Proton Therapy System is a medical device designed to produce and deliver a proton beam for the treatment

of patients with localized tumors and other condition susceptible to treatment by radiation in the head, neck and thorax.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K221996: P-Cure Proton Beam Therapy System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K221996

Report an extraction error

Tell us what is wrong; we check it against the FDA summary.

Are you the manufacturer?

Send a correction or an update to this page, for example a newer model or a public statement about a recall.

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