510(k) Report

510(k) · Cleared

Cleared

Forceguard

K955034510(k) TraditionalCleared Apr 10, 1996160-day reviewClass II21 CFR 890.5575

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

Impact Monitors, Inc. · IRN Device, Warning, Overload, External Limb, Powered

Cleared on Apr 10, 1996 as substantially equivalent to K882974 (Boulder Impact Monitors, Inc., 1988) and 2 other predicates after a 160-day review. Its family tree reaches back 1 generation to 1977. 2 later devices descend from it.

Decided
Apr 10, 1996
Review
160 days
Class
Class II
Product code
IRN
Recalls
None
Predicates
3

Its longest line of descent runs back 1 generation to K770405 (1977). 3 ancestors in all. 2 later devices descend from it, 1 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 1988: 1 other ancestor1979: 1 other ancestor2002: 1 descendant cleared2006: 1 descendant clearedK770405 · Overload Warning Device · Synthes (Usa) · 197719801990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 2 other ancestors 1 generation forward: 1 descendant2 generations forward: 1 descendant K770405 · Overload Warning Device · Synthes (Usa) · 19770
  1. Root · 1 generation backK770405 Overload Warning DeviceSynthes (Usa) · 1977
  2. This deviceK955034 ForceguardImpact Monitors, Inc. · 1996
  3. Descendant · cites it directly · 1 of its ownK023161 Smartstep SystemAndante Medical Device, Ltd. · 2002
  4. Descendant · 2 generations on · 0 of its ownK060150 Smartstep System/Smarstep Clinic SystemAndante Medical Devices, Ltd. · 2006

Most influential descendants

Showing 2 of 2 · See all
  • K023161Smartstep SystemAndante Medical Device, Ltd. · 2002 · cites it directly1descendant
  • K060150Smartstep System/Smarstep Clinic SystemAndante Medical Devices, Ltd. · 2006 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K770405Overload Warning DeviceSynthes (Usa)1977—
0 (this device)K955034ForceguardImpact Monitors, Inc.1996—
+1K023161Smartstep SystemAndante Medical Device, Ltd.2002—
+2K060150Smartstep System/Smarstep Clinic SystemAndante Medical Devices, Ltd.2006—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
197910
198810

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200210
200610
FIG. 1 — Lineage of K955034, 1977–2006Source: 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 IRN? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

  • Candidate predicates for a device like this, rankedin the report
  • Recall history across each candidate’s familyin the report
Get a 510(k) Report

What was it cleared against? (3)

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
*K882974Force Guard I
Summary page 1
…Trade name: ForceGuard Common name: Overload alarm, Limb load monitor Classification: Alarm, Overload, External Limb, Powered Substantially Equivalent to: Force Guard 1 K882974 Impact Monitors, Inc. Pelimit K770405 Synthes (USA) K792241 Colmed Ltd. Intended Use ForceGuard is used to sense the amount of…
Boulder Impact Monitors, Inc.1988—
*K770405Overload Warning Device
Summary page 1
…verload alarm, Limb load monitor Classification: Alarm, Overload, External Limb, Powered Substantially Equivalent to: Force Guard 1 K882974 Impact Monitors, Inc. Pelimit K770405 Synthes (USA) K792241 Colmed Ltd. Intended Use ForceGuard is used to sense the amount of weight applied to the plantar surface…
Synthes (Usa)1977—
*K792241Pelimit
Summary page 1
…ad monitor Classification: Alarm, Overload, External Limb, Powered Substantially Equivalent to: Force Guard 1 K882974 Impact Monitors, Inc. Pelimit K770405 Synthes (USA) K792241 Colmed Ltd. Intended Use ForceGuard is used to sense the amount of weight applied to the plantar surface of the foot. The devic…
Colmed, Ltd.1979—

Also cleared against K882974: 1 other device →

What descends from it? (2)

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

NumberDeviceApplicantDecidedDescendants
K023161Smartstep SystemAndante Medical Device, Ltd.20021

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?

  • None of the 3 ancestors has a recall.
  • Of its descendants, K023161 (Andante Medical Device, Ltd., 2002) has gone furthest, with 1 descendant of its own.
  • 1 other device also cites its predicate K882974.

How does its category compare?

All IRN devices

IRN Device, Warning, Overload, External Limb, Powered: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · IRN

FDA has decided no IRN device since 2007.

Median 510(k) review, days · IRN

Too few IRN 510(k)s in any year since 2007 to give a median.

Recalls per year · IRN

No recall names IRN since 2007.

Adverse event reports per year · IRN

No MAUDE report names IRN since 2007.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20180—00
20190—00
20200—00
20210—00
20220—00
20230—00
20240—00
20250—00
20260—0—

What is it indicated for?

ForceGuard is used to sense the amount of weight applied to the plantar surface of the foot. The device alerts the wearer and/or therapist with a repeating tone when the weight exceeds the pre-selected value.

ForceGuard will be used on patients whe have bore, connective tissue or soft tissue damage who also have been instructed by a physician to limit the weight being placed on a lower limb.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K955034: Forceguard.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K955034

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