510(k) Report

510(k) · Cleared

Cleared

Intelect IFC2

K924666510(k) TraditionalCleared Mar 5, 1993170-day reviewClass II21 CFR 882.5890

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

Chattanooga Group, Inc. · LIH Interferential Current Therapy

Cleared on Mar 5, 1993 after a 170-day review. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known. 15 later devices descend from it.

Decided
Mar 5, 1993
Review
170 days
Class
Class II
Product code
LIH
Recalls
None
Predicates
0

15 later devices descend from it, 1 citing it directly.

Descendants, by year cleared 2001: 1 descendant cleared2002: 1 descendant cleared2006: 1 descendant cleared2008: 1 descendant cleared2016: 1 descendant cleared2021: 3 descendants cleared2009: 1 descendant cleared2017: 1 descendant cleared2025: 1 descendant cleared2023: 1 descendant cleared2018: 1 descendant cleared2022: 2 descendants cleared1990200020102020
  1. This deviceK924666 Intelect IFC2Chattanooga Group, Inc. · 1993
  2. Descendant · cites it directly · 14 of its ownK011702 Vertis PNT Control Unit, Vertis PNT Safeguide Kids, Models CU100…Vertis Neuroscience, Inc. · 2001
  3. Descendant · 2 generations on · 13 of its ownK022241 Vertis PNT Control Unit, Model CU 100; Vertis PNT…Vertis Neuroscience, Inc. · 2002
  4. Descendant · 3 generations on · 12 of its ownK061166 Deepwave Percutaneous Neuromodulation Pain Therapy SystemBiowave Corporation · 2006
  5. Descendant · 4 generations on · 11 of its ownK072123 Homewave Neuromodulations Pain Therapy DeviceBiowave Corporation · 2008
  6. Descendant · 4 generations on · 9 of its ownK161154 Smartpatch PNS MicroLead and Accessories, Smartpatch PNS Stimulator…Spr Therapeutics, LLC · 2016

Showing 5 of 15 descendants. See all descendants

Descendants cleared per year

2001: 12002: 12006: 12008: 12009: 12016: 12017: 12018: 12021: 32022: 22023: 12025: 1
2001high 3 (2021) · low 0 (2003)2026

Most influential descendants

Showing 5 of 15 · See all
  • K011702Vertis PNT Control Unit, Vertis PNT Safeguide Kids, Models CU100, SgxxxVertis Neuroscience, Inc. · 2001 · cites it directly14descendants
  • K022241Vertis PNT Control Unit, Model CU 100; Vertis PNT Safeguide-Cervical, Model SG 102-XXXVertis Neuroscience, Inc. · 2002 · 2 generations on13descendants
  • K061166Deepwave Percutaneous Neuromodulation Pain Therapy SystemBiowave Corporation · 2006 · 3 generations on12descendants
  • K072123Homewave Neuromodulations Pain Therapy DeviceBiowave Corporation · 2008 · 4 generations on11descendants
  • K161154Smartpatch PNS MicroLead and Accessories, Smartpatch PNS Stimulator, Pads, and…Spr Therapeutics, LLC · 2016 · 4 generations on9descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K924666Intelect IFC2Chattanooga Group, Inc.1993—
+1K011702Vertis PNT Control Unit, Vertis PNT Safeguide Kids, Models CU100, SgxxxVertis Neuroscience, Inc.2001—
+2K022241Vertis PNT Control Unit, Model CU 100; Vertis PNT Safeguide-Cervical, Model SG…Vertis Neuroscience, Inc.2002—
+3K061166Deepwave Percutaneous Neuromodulation Pain Therapy SystemBiowave Corporation2006—
+4K072123Homewave Neuromodulations Pain Therapy DeviceBiowave Corporation2008—
+4K161154Smartpatch PNS MicroLead and Accessories, Smartpatch PNS Stimulator, Pads, and…Spr Therapeutics, LLC2016—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200110
200210
200610
200810
200910
201610
201710
201810
202130
202220
202310
202510
FIG. 1 — Lineage of K924666, 1993–2025Source: 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), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in LIH? 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 LIH device

  1. #1 K231575 Vecttor VT-300score 7.1 · 2 generations · no Class I recall
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What was it cleared against?

FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

What descends from it? (15)

See all 15

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

NumberDeviceApplicantDecidedDescendants
K011702Vertis PNT Control Unit, Vertis PNT Safeguide Kids, Models CU100, SgxxxVertis Neuroscience, Inc.200114

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, K011702 (Vertis Neuroscience, Inc., 2001) has gone furthest, with 14 descendants of its own.

How does its category compare?

All LIH devices

LIH Interferential Current Therapy: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · LIH

1in 2024

2007: 12009: 22010: 22011: 12012: 22019: 12021: 12024: 1
2007high 2 (2009) · low 0 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LIH

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

Recalls per year · LIH

No recall names LIH since 2007.

Adverse event reports per year · LIH

1in 2025

2008: 142009: 32010: 22011: 12012: 12013: 12015: 12016: 12017: 12019: 12021: 12024: 12025: 1
2007high 14 (2008) · low 0 (2007)2025

MAUDE reports naming product code LIH, 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—00
20080—014
20092—03
20102—02
20111—01
20122—01
20130—01
20140—00
20150—01
20160—01
20170—01
20180—00
20191—01
20200—00
20211—01
20220—00
20230—00
20241—01
20250—01
20260—0—
Cite this page

510(k) Report. “K924666: Intelect IFC2.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K924666

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Record history
  • FDA decision record loaded May 2, 2026
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026