Drills, burrs, trephines & accessories (compound, powered): medical device reports filed with FDA

2,732 reports carry this product code, 1993–2026; 12 brands with a page.

Read first · FDA's statement on these data

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product. openFDA, FDA

FDA adds: "Although MDRs are a valuable source of information, this passive surveillance system has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data. In addition, the incidence or prevalence of an event cannot be determined from this reporting system alone due to potential under-reporting of events and lack of information about frequency of device use." And: "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices."

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

2,732
reports with this product code: 0% of all MAUDE reports; 101
reports, 12 months to August 2026: 119 in the 12 months before; 48.6%
classified as malfunction: 62.3% across all reports; 0.1%
classified as death, as reported: 0.9% across all reports

Product code HBF is FDA's classification for "Drills, burrs, trephines & accessories (compound, powered)" (neurology panel), a class 2 device. 2,732 medical device reports carry this product code, 0% of the MAUDE database, from July 1993 to August 2026.

101 reports arrived in the 12 months to August 2026, down 15% from 119 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are injury (49.5%), malfunction (48.6%) and other (1.4%). 12 brand names with a page on this site carry this code; the brands table is ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Brands with this product code

Brand	Reports	Latest 12 months	Classified as death	Classified as malfunction
Codman Dispos Perforator	662	21	0%	53.7%
Codman Disposable Perforator	607	0	0.2%	44.2%
Easydrill Perforator	406	37	0%	33.6%
Codman	48	0	1.6%	57.9%
Mayfield	4	3	0%	40.2%
Mayfield Modified Skull Clamp	4	75	0%	71.4%
Midas Rex	3	591	0%	96.9%
Perforator Driver W/Hudson End	3	0	0%	99%
Drill Bit	1	25	0%	78.5%
Hakim Programmable Valve	1	9	0.9%	9.1%
Midas Rex Legend	1	356	0%	99.7%
Motor Mr8 Electric	1	4	0%	96.3%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Manufacturers named

Manufacturer (as written on reports)	Reports	Share
Codman & Shurtleff	659	24.1%
Raynham	406	14.9%
Integra Lifesciences Mansfield	283	10.4%
Stryker Ireland	99	3.6%
Stryker Instruments-A Division Of Stryker	81	3%
Stryker Instruments-Kalamazoo	72	2.6%
The Anspach Effort	72	2.6%
Mdt Powered Surgical Solutions	26	1%
Stryker Instruments	14	0.5%
Amo Manufacturing Netherlands	10	0.4%
Codman And Shurtleff	8	0.3%
3m	6	0.2%
Integra Lifesciences	6	0.2%
Integra Lifesciences Switzerland Sar	4	0.1%
Amo Puerto Rico Mfg	2	0.1%

Reports by month, five years

FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

Event type and report source

Event type

Death0.1%2

Injury49.5%1,351

Malfunction48.6%1,328

Other1.4%39

Not given0.4%12

Who filed

Manufacturer report90.8%2,480

Voluntary report3.4%93

User facility report0%0

Distributor report0.1%2

Not given5.7%157

Grey bar: all 26,136,888 MAUDE reports.

Device problems coded

Device problem (FDA code)	Reports	Share
Failure to auto stop	649	23.8%
Device remains activated	481	17.6%
Fail-safe did not operate	207	7.6%
Activation, positioning or separation problem	166	6.1%
Breakthe device broke	123	4.5%
Other (for use when an appropriate device code cannot be identified)	99	3.6%
Plunge	92	3.4%
Dull, blunt	83	3%
Mechanical problema mechanical problem	77	2.8%
Sticking	62	2.3%
Device operates differently than expectedthe device behaved unexpectedly	54	2%
Material separation	54	2%
Device issuea problem with the device	48	1.8%
Difficult to removethe device was hard to remove	39	1.4%
Insufficient device problem information	33	1.2%
Fracturea broken bone	26	1%
Detachment of device or device componentpart of the device came off	23	0.8%
Failure to shut off	21	0.8%
Replace	21	0.8%
Entrapment of device	18	0.7%

Questions about drills, burrs, trephines & accessories (compound, powered) reports

What is product code HBF?

FDA's classification code for "Drills, burrs, trephines & accessories (compound, powered)", class 2, reviewed by the neurology panel. Every device report carries the product code of the device involved.

How many reports carry this code?

2,732 reports through August 2026, 101 of them in the latest 12 months.

Which brands appear most often?

Codman Dispos Perforator (662), Codman Disposable Perforator (607), Easydrill Perforator (406), Codman (48) and Mayfield (4). Widely used products collect more reports because more people use them.

Can the brands table be used to rank the devices?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." Brands differ in how many are in use, how long they have been sold and how reports are collected.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.