510(k) Report

510(k) · Cleared

Cleared

Immedia Prothrombin Time System

K050243510(k) TraditionalCleared Jun 6, 2005124-day reviewClass II21 CFR 864.5425

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

Farallon Medial, Inc. · JPA System, Multipurpose For In Vitro Coagulation Studies

Cleared on Jun 6, 2005 after a 124-day review. The FDA summary names its predicate without a number. 3 later devices descend from it.

Decided
Jun 6, 2005
Review
124 days
Class
Class II
Product code
JPA
Recalls
None
Predicates
0

3 later devices descend from it, 2 citing it directly.

Descendants, by year cleared 2010: 1 descendant cleared2019: 1 descendant cleared2022: 1 descendant cleared20052010201520202025
  1. This deviceK050243 Immedia Prothrombin Time SystemFarallon Medial, Inc. · 2005
  2. Descendant · cites it directly · 2 of its ownK093243 Coagusense Self-Test Prothrombin Time/Inr Monitoring SystemCoagusense, Inc. · 2010 · Recalled
  3. Descendant · cites it directly · 1 of its ownK183255 Coag-Sense Prothrombin Time (PT) / INR Monitoring DeviceCoagusense, Inc. · 2019 · Recalled
  4. Descendant · 2 generations on · 0 of its ownK212779 Coag-Sense Prothrombin (PT) / INR Monitoring System for Patient…Coagusense, Inc. · 2022

Most influential descendants

Showing 3 of 3 · See all
  • K093243Coagusense Self-Test Prothrombin Time/Inr Monitoring SystemCoagusense, Inc. · 2010 · cites it directly2descendants
  • K183255Coag-Sense Prothrombin Time (PT) / INR Monitoring DeviceCoagusense, Inc. · 2019 · cites it directly1descendant
  • K212779Coag-Sense Prothrombin (PT) / INR Monitoring System for Patient Self-TestingCoagusense, Inc. · 2022 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K050243Immedia Prothrombin Time SystemFarallon Medial, Inc.2005—
+1K093243Coagusense Self-Test Prothrombin Time/Inr Monitoring SystemCoagusense, Inc.20101
+1K183255Coag-Sense Prothrombin Time (PT) / INR Monitoring DeviceCoagusense, Inc.20191
+2K212779Coag-Sense Prothrombin (PT) / INR Monitoring System for Patient Self-TestingCoagusense, Inc.2022—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201010
201910
202210
FIG. 1 — Lineage of K050243, 2005–2022Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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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 JPA? 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 JPA device

  1. #1 K243858 TEG 6s Hemostasis System Citrated: K, KH, RT…score 12.0 · 2 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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
*—Roche CoaguChek S
Named without a submission number
—

What descends from it? (3)

2 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K093243Coagusense Self-Test Prothrombin Time/Inr Monitoring SystemCoagusense, Inc.20102
K183255Coag-Sense Prothrombin Time (PT) / INR Monitoring DeviceCoagusense, Inc.20191

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?

  • Of its descendants, K093243 (Coagusense, Inc., 2010) has gone furthest, with 2 descendants of its own.

How does its category compare?

All JPA devices

JPA System, Multipurpose For In Vitro Coagulation Studies: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · JPA

3in 2025

2007: 12008: 22009: 62010: 12011: 12013: 12015: 22016: 62017: 42018: 12019: 32021: 12022: 12023: 32024: 12025: 32026 (partial year): 1
2007high 6 (2009) · low 0 (2012)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JPA

30in 2025

2009: 91 days median2016: 114 days median2017: 117 days median2019: 175 days median2023: 506 days median2025: 30 days median
2007high 506 (2023) · low 30 (2025)2026

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

Recalls per year · JPA

1in 2020

2007: 12010: 62011: 42012: 12016: 32020: 12026 (partial year): 1
2007high 6 (2010) · low 0 (2008)2026

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

Adverse event reports per year · JPA

11in 2025

2007: 1,7442008: 9182009: 1,3632010: 7272011: 1612012: 522013: 432014: 482015: 452016: 62017: 152018: 392019: 272020: 182021: 72022: 92023: 112024: 82025: 11
2007high 1,744 (2007) · low 6 (2016)2025

MAUDE reports naming product code JPA, 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
20071—11,744
20082—0918
200969101,363
20101—6727
20111—4161
20120—152
20131—043
20140—048
20152—045
2016611436
20174117015
20181—039
20193175027
20200—118
20211—07
20221—09
20233506011
20241—08
2025330011
20261—1—

What is it indicated for?

The Imrnmedia System is an in vitro diagnostic device that provides quantitative prothrombin time (PT) results, expressed in seconds and INR units. It uses fresh capillary whole blood. It is intended for use by health care professional at the point of care to monitor patients who are on warfarin-type (coumarin) anticoagulation therapy. The device is not intended to be used for screening purposes.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K050243: Immedia Prothrombin Time System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/K050243

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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