510(k) Report

510(k) · Cleared

Recalled · Class I · 2018

Doro Radiolucent Headrest System and Horseshoe Headrests,and Non-Radiolucent J-Arm Retractor System (Aluminum Alloy)

K032331510(k) TraditionalCleared Nov 20, 2003114-day reviewClass II21 CFR 882.4460Recalls 3 (3 Class I)

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

Pro-Med Instruments GmbH · HBL Holder, Head, Neurosurgical (Skull Clamp)

Cleared on Nov 20, 2003 as substantially equivalent to K001808 (Pro-Med Instruments GmbH, 2000) and 2 other predicates after a 114-day review. Its family tree reaches back 1 generation to 1991. 1 of the 14 devices in its family, counting itself, has a Class I recall. 10 later devices descend from it. It has been recalled 3 times, including 3 Class I recalls.

Decided
Nov 20, 2003
Review
114 days
Class
Class II
Product code
HBL
Recalls
3 (3 Class I)
Predicates
3

Its longest line of descent runs back 1 generation to K913233 (1991). 3 ancestors in all. 10 later devices descend from it, 3 citing it directly. 1 of the 14 devices in this family, counting this one, has a Class I recall.

Other ancestors, by year clearedDescendants, by year cleared 2000: 1 other ancestor1996: 1 other ancestor2007: 2 descendants cleared2021: 1 descendant cleared2019: 1 descendant cleared2012: 1 descendant cleared2020: 1 descendant cleared2011: 1 descendant cleared2025: 1 descendant cleared2014: 1 descendant cleared2024: 1 descendant clearedReference device: K013979 · SC-Acufix Thinline Anterior Cervical Plate System · Spinal Concepts, Inc. · 2002 · recalledReference device: K970541 · Aesculap Modular Monopolar Electrodes · Aesculap, Inc. · 1997K913233 · Codman Lhalo Split Ring Retractor System · Codman & Shurtleff, Inc. · 19911990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 2 other ancestors 1 generation forward: 3 descendants2 generations forward: 4 descendants3 generations forward: 3 descendants K913233 · Codman Lhalo Split Ring Retractor System · Codman & Shurtleff, Inc. · 19910
  1. Root · 1 generation backK913233 Codman Lhalo Split Ring Retractor SystemCodman & Shurtleff, Inc. · 1991
  2. This deviceK032331 Doro Radiolucent Headrest System and Horseshoe Headrests,and…Pro-Med Instruments GmbH · 2003
  3. Descendant · cites it directly · 7 of its ownK063494 Doro Radiolucent Headrest System ( Also Mri-Compatible) and ComponentsPro-Med Instruments GmbH · 2007
  4. Descendant · 2 generations on · 4 of its ownK072208 Mayfield Disposable and Reusable Titanium Skull PinsIntegra LifeSciences Corporation · 2007
  5. Descendant · 2 generations on · 2 of its ownK103493 Head Fiation Device (HFD 100)Imris, Inc. · 2011 · Recalled
  6. Descendant · 2 generations on · 1 of its ownK191740 DORO LUCENT® iXI and iMRI Headrest SystemPro Med Instruments GmbH · 2020
  7. Descendant · 3 generations on · 0 of its ownK250423 mb-FIX Cranial Stabilization SystemsMedical Bees GmbH · 2025

Showing 5 of 10 descendants. See all descendants

Descendants cleared per year

2007: 22011: 12012: 12014: 12019: 12020: 12021: 12024: 12025: 1
2007high 2 (2007) · low 0 (2008)2026

Most influential descendants

Showing 5 of 10 · See all
  • K063494Doro Radiolucent Headrest System ( Also Mri-Compatible) and ComponentsPro-Med Instruments GmbH · 2007 · cites it directly7descendants
  • K072208Mayfield Disposable and Reusable Titanium Skull PinsIntegra LifeSciences Corporation · 2007 · 2 generations on4descendants
  • K103493Head Fiation Device (HFD 100)Imris, Inc. · 2011 · 2 generations on2descendants
  • K191740DORO LUCENT® iXI and iMRI Headrest SystemPro Med Instruments GmbH · 2020 · 2 generations on1descendant
  • K250423mb-FIX Cranial Stabilization SystemsMedical Bees GmbH · 2025 · 3 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K913233Codman Lhalo Split Ring Retractor SystemCodman & Shurtleff, Inc.1991—
0 (this device)K032331Doro Radiolucent Headrest System and Horseshoe Headrests,and Non-Radiolucent…Pro-Med Instruments GmbH2003—
+1K063494Doro Radiolucent Headrest System ( Also Mri-Compatible) and ComponentsPro-Med Instruments GmbH2007—
+2K072208Mayfield Disposable and Reusable Titanium Skull PinsIntegra LifeSciences Corporation2007—
+2K103493Head Fiation Device (HFD 100)Imris, Inc.20113
+2K191740DORO LUCENT® iXI and iMRI Headrest SystemPro Med Instruments GmbH2020—
+3K250423mb-FIX Cranial Stabilization SystemsMedical Bees GmbH2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199610
200010

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200720
201110
201210
201410
201910
202010
202110
202410
202510
FIG. 1 — Lineage of K032331, 1991–2025Source: 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), 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.

1 device in this family has a Class I recall. 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 HBL device

  1. #1 K250423 mb-FIX Cranial Stabilization Systemsscore 13.0 · 10 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? (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
*K001808Doro Headrest System
Summary page 2
…Director A1-2 2. Name af Predicate Devices Product Clearance Number pro med instruments K 001808 GMBH DOROB Headrest System, Skull Pins and Halo Retractor System OM1 MAYFIELD K 953 124 Radiolucent 2000 Skull Clamp J…
Pro-Med Instruments GmbH20002
*K953124Mayfield Radiolucent 2000 Skull Clamp
Summary page 2
…evices Product Clearance Number pro med instruments K 001808 GMBH DOROB Headrest System, Skull Pins and Halo Retractor System OM1 MAYFIELD K 953 124 Radiolucent 2000 Skull Clamp J&J (CODMAN) Halo (K913233) Split Ring Retractor System Materials Spinal Concepts, Inc.…
Ohio Medical Instrument Co., Inc.1996—
*K913233Codman Lhalo Split Ring Retractor System
Summary page 2
…uments K 001808 GMBH DOROB Headrest System, Skull Pins and Halo Retractor System OM1 MAYFIELD K 953 124 Radiolucent 2000 Skull Clamp J&J (CODMAN) Halo (K913233) Split Ring Retractor System Materials Spinal Concepts, Inc. SC- KO 13979 (Laminate( lllien phenolic composite) Acuflx Thinl…
Codman & Shurtleff, Inc.1991—
†K013979SC-Acufix Thinline Anterior Cervical Plate SystemSpinal Concepts, Inc.20022
†K970541Aesculap Modular Monopolar ElectrodesAesculap, Inc.1997—

Also cleared against K001808: 2 other devices →

What descends from it? (10)

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

NumberDeviceApplicantDecidedDescendants
K063494Doro Radiolucent Headrest System ( Also Mri-Compatible) and ComponentsPro-Med Instruments GmbH20077
K203505DORO QR3 Headrest System (Aluminum)Pro Med Instruments GmbH20210
K191979DORO QR3 XTom Headholder SystemPro Med Instruments GmbH20190

Has anything in its family been recalled? (1 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Jul 5, 2018Class IZ-2971-2018Component change controlThe combination of two different design revisions of DORO LUCENT Base Unit, Locking Transitional Member, and Transitional Member within one set up might lead to a malfunction and failure of the headrest system.
Jul 5, 2018Class IZ-2970-2018Component change controlThe combination of two different design revisions of DORO LUCENT Base Unit, Locking Transitional Member, and Transitional Member within one set up might lead to a malfunction and failure of the headrest system.
Jul 5, 2018Class IZ-2972-2018Component change controlThe combination of two different design revisions of DORO LUCENT Base Unit, Locking Transitional Member, and Transitional Member within one set up might lead to a malfunction and failure of the headrest system.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • 1 of the 3 ancestors has a recall of any class.
  • Of its descendants, K063494 (Pro-Med Instruments GmbH, 2007) has gone furthest, with 7 descendants of its own.
  • 2 other devices also cite its predicate K001808.

How does its category compare?

All HBL devices

HBL Holder, Head, Neurosurgical (Skull Clamp): FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · HBL

1in 2025

2007: 32008: 22009: 32010: 12011: 12012: 22013: 22014: 22017: 12019: 22020: 22021: 12024: 22025: 1
2007high 3 (2007) · low 0 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · HBL

54in 2009

2007: 30 days median2009: 54 days median
2007high 54 (2009) · low 30 (2007)2026

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

Recalls per year · HBL

1in 2025

2012: 12013: 12017: 12019: 12020: 12022: 12025: 1
2007high 1 (2012) · low 0 (2007)2026

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

Adverse event reports per year · HBL

272in 2025

2007: 392008: 1032009: 972010: 1542011: 1992012: 1702013: 1482014: 1662015: 1962016: 2802017: 2962018: 3052019: 1,0282020: 6072021: 5122022: 2682023: 2652024: 1972025: 272
2007high 1,028 (2019) · low 39 (2007)2025

MAUDE reports naming product code HBL, 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
2007330039
20082—0103
2009354097
20101—0154
20111—0199
20122—1170
20132—1148
20142—0166
20150—0196
20160—0280
20171—1296
20180—0305
20192—11,028
20202—1607
20211—0512
20220—1268
20230—0265
20242—0197
20251—1272
20260—0—

What is it indicated for?

The DORO Radiolucent Headrest System is used in open and percutaneous craniotomies and spinal surgeries for rigid cranial fixation and when intraoperative CT imaging is used.

The DOROO J-ARM Retractor Accessory is used to fix tissue retractor during neurosurgical procedures.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K032331: Doro Radiolucent Headrest System and Horseshoe Headrests,and Non-Radiolucent J-Arm Retractor System (Aluminum Alloy).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K032331

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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