Reported Reactions

Devices › System, surgical, computer controlled instrument

Device brand name · Permanent cautery hook

Single-Site: medical device reports filed with FDA

356 reports name it, 2015–2026. Manufacturer given most often on reports: Intuitive Surgical. Product code NAY.

356
device reports naming the brand
0% of all MAUDE reports · about 31 a year
68
reports, 12 months to August 2026
65 in the 12 months before
79.5%
classified as malfunction
90.7% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 356 reports that name the brand "Single-Site" (permanent cautery hook), received between February 2015 and August 2026; the manufacturer given most often on reports is Intuitive Surgical. Spellings of one product vary from report to report.

68 reports arrived in the 12 months to August 2026, close to the 65 of 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 malfunction (79.5%) and injury (20.5%); across all system, surgical, computer controlled instrument reports (product code NAY) death is recorded in 0.6% and malfunction in 90.7%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are detachment of device or device component (23.9%), break (16.3%) and difficult to open or close (15.2%). The patient problems coded most often are foreign body in patient and hemorrhage/blood loss/bleeding. 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."

Reports by month, five years

01427Sep 2021: 0Oct 2021: 2Nov 2021: 0Dec 2021: 22022Jan 2022: 0Feb 2022: 3Mar 2022: 8Apr 2022: 2May 2022: 3Jun 2022: 4Jul 2022: 9Aug 2022: 3Sep 2022: 3Oct 2022: 4Nov 2022: 8Dec 2022: 62023Jan 2023: 7Feb 2023: 14Mar 2023: 7Apr 2023: 17May 2023: 27Jun 2023: 6Jul 2023: 6Aug 2023: 2Sep 2023: 3Oct 2023: 7Nov 2023: 6Dec 2023: 62024Jan 2024: 4Feb 2024: 4Mar 2024: 2Apr 2024: 2May 2024: 4Jun 2024: 1Jul 2024: 1Aug 2024: 8Sep 2024: 5Oct 2024: 4Nov 2024: 9Dec 2024: 52025Jan 2025: 4Feb 2025: 1Mar 2025: 7Apr 2025: 7May 2025: 4Jun 2025: 3Jul 2025: 6Aug 2025: 10Sep 2025: 4Oct 2025: 7Nov 2025: 2Dec 2025: 92026Jan 2026: 7Feb 2026: 5Mar 2026: 10Apr 2026: 6May 2026: 4Jun 2026: 7Jul 2026: 4Aug 2026: 3

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

By year received

0541082015: 320152018: 920182019: 1020192020: 520202021: 920212022: 5320222023: 10820232024: 4920242025: 6420252026: 462026

Event type and report source

Event type, as classified on the report

Death0%0
Injury20.5%73
Malfunction79.5%283
Other0%0
Not given0%0

Who filed the report

Manufacturer report98.3%350
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given1.7%6

Grey bar: all 141,000 reports carrying product code NAY. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Detachment of device or device componentpart of the device came off8523.9%5%
Breakthe device broke5816.3%10.3%
Difficult to open or close5415.2%4.5%
Unintended system motionthe device moved when it should not have4011.2%2%
Material split, cut or torn3610.1%31.4%
Material fragmentation257%5.7%
Material integrity problema problem with the device material92.5%0.4%
Unintended movement92.5%1.9%
Difficult to removethe device was hard to remove41.1%0.6%
Material separation41.1%0.6%
Thermal decomposition of device41.1%1.9%
No device output30.8%1.4%
Arcing20.6%1.2%
Energy output problem20.6%1.1%
Device difficult to setup or prepare10.3%0.1%
Device dislodged or dislocated10.3%0.4%
Device reprocessing problem10.3%0%
Entrapment of device10.3%0.4%
Insufficient device problem information10.3%1.1%
Material frayed10.3%7.7%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
Foreign body in patientpart of a device left in the patient215.9%
Hemorrhage/blood loss/bleeding10.3%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureSingle-SiteProduct code NAYAll MAUDE reports
Reports356141,00026,136,888
Share of that pool—0.3%0%
Classified as death, per 1,000 reports069
Classified as injury20.5%7.9%36.2%
Classified as malfunction79.5%90.7%62.3%
Filed by the manufacturer98.3%97.1%94.9%

Shares are of reports, not of devices in use. 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."

Other brands with product code NAY

BrandReportsLatest 12 monthsClassified as death
Endowrist86,56637,1920%
daVinci Xi15,7225,7432%
daVinci 52,3942,1220.7%
Fenestrated Bipolar Forceps Instrument1,83900%
EndoWrist;daVinci Si1,7713560.1%
Pk Dissecting Forceps Instrument1,56400%
Da Vinci Si Surgical System1,461011%
Prograsp Forceps Instrument1,39600%
EndoWrist SP1,3555970%
da Vinci1,4834041.2%
daVinci Si1,2251292.3%
daVinci X9384205.4%
Maryland Bipolar Forceps Instrument95200%
SureForm2,9276541.2%
Monopolar Curved Scissors Instrument1,05600%

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." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about Single-Site reports

How many FDA reports name Single-Site?

356 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 68 in the latest 12 months.

What kinds of events are reported?

malfunction (79.5%) and injury (20.5%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

detachment of device or device component (23.9%), break (16.3%), difficult to open or close (15.2%), unintended system motion (11.2%) and material split, cut or torn (10.1%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (98.3%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Single-Site was at fault?

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." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

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. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. 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.