510(k) · Cleared
Clearedcontact forte Alpha
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Bhm-Tech Produktionsgesellschaft Mbh · LXB Hearing Aid, Bone Conduction
Cleared on Apr 25, 2025 as substantially equivalent to K153391 (Sophono, Inc., 2016) after a 210-day review. Its family tree reaches back 10 generations to 1986.
- Decided
- Apr 25, 2025
- Review
- 210 days
- Class
- Class II
- Product code
- LXB
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 10 generations to K861971 (1986). 25 ancestors in all, the oldest K855059 (1986). No later device cites it as a predicate yet.
- Root · 10 generations backK861971 Xomed Audiant Bone Conductor W/Improved AA CoilXomed, Inc. · 1986
- 6 generations between
- 3 generations backK102199 Otomag Bone Conduction Hearing System Model Alpha 1 (S) and Alpha 1…Sophono, Inc. · 2011
- 2 generations backK132189 Otomag Bone Conducation Hearing SystemSophono, Inc. · 2013
- 1 generation backK153391 Sophono Bone Conduction Systems (S) Configuration and (M)…Sophono, Inc. · 2016
- This deviceK243041 contact forte AlphaBhm-Tech Produktionsgesellschaft Mbh · 2025
Show all 10 generations
- Root · 10 generations backK861971 Xomed Audiant Bone Conductor W/Improved AA CoilXomed, Inc. · 1986
- 9 generations backK955713 Nobelpharma Bone Anchored Hearing AidNobelpharma USA, Inc. · 1996
- 8 generations backK984162 Branemark Bone-Anchored Hearing Aid (Baha) System for Pediatric UseNobelpharma USA, Inc. · 1999
- 7 generations backK992872 Branemark Bone-Anchored Hearing Aid (Baha) Cordelle IIEntific Medical Systems, Inc. · 1999
- 6 generations backK080363 Baha Cordelle IICochlear Bone Anchored Systems AB · 2008
- 5 generations backK090720 Cochlear Baha BP100Cochlear Bone Anchored Systems AB · 2009
- 4 generations backK100193 Otomag Bone Conduction Hearing SystemSophono, Inc. · 2010
- 3 generations backK102199 Otomag Bone Conduction Hearing System Model Alpha 1 (S) and Alpha 1…Sophono, Inc. · 2011
- 2 generations backK132189 Otomag Bone Conducation Hearing SystemSophono, Inc. · 2013
- 1 generation backK153391 Sophono Bone Conduction Systems (S) Configuration and (M)…Sophono, Inc. · 2016
- This deviceK243041 contact forte AlphaBhm-Tech Produktionsgesellschaft Mbh · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −10 | K861971 | Xomed Audiant Bone Conductor W/Improved AA Coil | Xomed, Inc. | 1986 | — |
| −9 | K955713 | Nobelpharma Bone Anchored Hearing Aid | Nobelpharma USA, Inc. | 1996 | — |
| −8 | K984162 | Branemark Bone-Anchored Hearing Aid (Baha) System for Pediatric Use | Nobelpharma USA, Inc. | 1999 | — |
| −7 | K992872 | Branemark Bone-Anchored Hearing Aid (Baha) Cordelle II | Entific Medical Systems, Inc. | 1999 | — |
| −6 | K080363 | Baha Cordelle II | Cochlear Bone Anchored Systems AB | 2008 | — |
| −5 | K090720 | Cochlear Baha BP100 | Cochlear Bone Anchored Systems AB | 2009 | — |
| −4 | K100193 | Otomag Bone Conduction Hearing System | Sophono, Inc. | 2010 | — |
| −3 | K102199 | Otomag Bone Conduction Hearing System Model Alpha 1 (S) and Alpha 1 (M) | Sophono, Inc. | 2011 | — |
| −2 | K132189 | Otomag Bone Conducation Hearing System | Sophono, Inc. | 2013 | — |
| −1 | K153391 | Sophono Bone Conduction Systems (S) Configuration and (M) Configuration | Sophono, Inc. | 2016 | — |
| 0 (this device) | K243041 | contact forte Alpha | Bhm-Tech Produktionsgesellschaft Mbh | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1991 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2004 | 1 | 0 |
| 2008 | 2 | 0 |
| 2009 | 1 | 0 |
| 2010 | 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 LXB? 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 LXB device
- #1 K254296 Ossiclear (Ossiclear System)score 14.7 · 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 |
|---|---|---|---|
| * | K153391 | Sophono Bone Conduction Systems (S) Configuration and (M) ConfigurationSummary page 5…874.3302 Product Code(s) LXB | Legally Marketed Predicate Devices 21 CFR 807.92(a)(3) Predicate # Predicate Trade Name (Primary Predicate is listed first) Product Code K153391 Sophono Bone Conduction Systems (S) Configuration and (M) G | LXB Device Description Summary 21 CFR 807.92(a)(4) The contact for… | 2016 |
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 39 years and passes through 6 companies; a new generation was cleared every 2.6 years on median.
- None of the 25 ancestors has a recall.
How does its category compare?
All LXB devicesLXB Hearing Aid, Bone Conduction: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · LXB
2in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LXB
79in 2021
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LXB
1in 2018
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LXB
261in 2025
MAUDE reports naming product code LXB, 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 | 0 | — | 0 | 4 |
| 2008 | 2 | — | 0 | 110 |
| 2009 | 2 | — | 0 | 76 |
| 2010 | 2 | — | 0 | 91 |
| 2011 | 5 | 189 | 0 | 123 |
| 2012 | 1 | — | 5 | 346 |
| 2013 | 5 | 103 | 0 | 640 |
| 2014 | 0 | — | 0 | 545 |
| 2015 | 2 | — | 0 | 824 |
| 2016 | 4 | 110 | 0 | 692 |
| 2017 | 1 | — | 0 | 379 |
| 2018 | 1 | — | 1 | 336 |
| 2019 | 1 | — | 0 | 497 |
| 2020 | 0 | — | 0 | 547 |
| 2021 | 4 | 79 | 0 | 490 |
| 2022 | 0 | — | 0 | 387 |
| 2023 | 0 | — | 0 | 348 |
| 2024 | 0 | — | 0 | 232 |
| 2025 | 2 | — | 0 | 261 |
| 2026 | 4 | 164 | 0 | — |
What is it indicated for?
The contact forte Alpha is a Processor and is intended for use with the Sophono Headband or Softband (no age limitations), or with the Sophono Magnetic Implant (patients 5 years of age and up) for the following patients and indications: Patients with conductive or mixed hearing losses, who can still benefit from amplification of sound. The pure tone average (PTA) bone conduction (BC) threshold for the indicated ear should be better than 45 dB HL…
Read the full statement (194 words)
The contact forte Alpha is a Processor and is intended for use with the Sophono Headband or Softband (no age limitations), or with the Sophono Magnetic Implant (patients 5 years of age and up) for the following patients and indications:
Patients with conductive or mixed hearing losses, who can still benefit from amplification of sound. The pure tone average (PTA) bone conduction (BC) threshold for the indicated ear should be better than 45 dB HL (measured at 0.5, 1,2, and 3 kHz).
Bilateral fitting is applicable for most patients having a symmetrically conductive or mixed hearing loss. The difference between the left and right sides’ BC thresholds should be less than 10 dB on average measured at 0.5, 1, 2, and 4 kHz, or less than 15 dB at individual frequencies.
Patients who have a profound sensorineural hearing loss in one ear and normal hearing in the opposite ear, who for some reason will not or cannot use an Air Conduction Contralateral Routing of Signal (AC CROS). The pure tone average (PTA) air conduction (AC) threshold of the hearing ear should be better than 20 dB HL (measured at 0.5,1, 2 and 3 kHz).
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K243041 · printed Nov 5, 2026
Cite this page
510(k) Report. “K243041: contact forte Alpha.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K243041
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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