Reported Reactions

Adverse event reports that FDA received

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Cook medical device reports that FDA received

Name type
Device brand name, as written on reports
Generic name
Catheter balloon dilation of cervical canal prior to labor
Device type
Catheter, intravascular, diagnostic (product code DQO)
Manufacturer given most often on reports
Cook

What a report is

A report is not proof that the device was the cause of the event.

FDA says:

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.

Source: openFDA, Device Adverse Event Overview, section "Responsible use of the data". The site read the page on . The data have the reports that FDA received through .

FDA also says:

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.

Source: openFDA, Device Adverse Event Overview. The site read the page on .

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.

Source: openFDA, Manufacturer and User Facility Device Experience. The site read the page on .

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.

Source: openFDA, Response of the drug event API (meta.disclaimer). The site read the page on .

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

Reports on file

From September 1996 to August 2026, FDA received 271 medical device reports that name the brand Cook. A brand name is as the reporter or the manufacturer wrote it, so one product can have more than one spelling.

FDA received 6 reports in the 12 months to September 2026 and 12 in the 12 months before. FDA releases MAUDE data every month. Reports can arrive months after an event, so the newest months grow in later releases.

Of the 3,444,740 device reports that FDA received in the 12 months to September 2026, 6 (under 0.1%) name the brand Cook. Manufacturer reports were 1.8% of the reports that name this brand and 94.9% of all device reports.

The number of people who use the product is not in the data. A count is not a rate. A count of reports is not a count of events or of patients, because one event can have more than one report.

What an MDR is

A medical device report: one submission to FDA about one event. It has the brand name, the generic name, the manufacturer, the product code, the event type and coded problems. Manufacturers and user facilities must send reports.

Data version

openFDA MAUDE release of 23 Oct 2026. Reports received through 30 Sep 2026.

Since the last update

FDA says:

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.

Source: openFDA, Manufacturer and User Facility Device Experience. The site read the page on .

The latest update of the FDA data, recorded on , changed no count of this page.

  • In April to June 2026, FDA received 1 report that names the brand Cook.
  • In January to March 2026, FDA received 1.
  • In April to June 2025, FDA received 4.

April to June 2026 is the latest closed quarter in the data. A closed quarter is a quarter for which the FDA files have most of the reports.

All updatesFeed of updates (RSS)

Event types by year

The event type is the classification that the reporter gave. The four terms are FDA's.

FDA says:

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.

Source: openFDA, Manufacturer and User Facility Device Experience. The site read the page on .

Reports that name Cook, by event type and by the year in which FDA received them

The table continues to the right.

YearReportsDeathInjuryMalfunctionOtherNot given
1996505000
1997826000
199817010610
19991107400
2000604200
200115013200
20021618610
200321012810
20041206420
20051105330
200614012110
2007706100
20081006220
20091005410
20101107400
2011813400
2012402200
2013902601
201716131200
2018711500
2019701600
2020501400
20211002800
2022600501
2023501400
2024600600
2025901800
2026500500

An event type in a report is not proof that the device was the cause. FDA does not verify the event type.

Malfunction

A malfunction report says that the device did not do what it was made to do. It can be with or without harm to a person.

Reports by month

Reports that name Cook, by month, five years to September 2026
03520222023202420252026

FDA releases MAUDE data every month. Reports can arrive months after an event, so the newest months grow in later releases.

Event type and report source

Event type in all reports that name Cook
Event typeReportsShareShare as a bar
Death62.2%
Injury12947.6%
Malfunction12245%
Other124.4%
Not given20.7%
Source of the reports that name Cook
Report sourceReportsShareShare as a bar
Manufacturer report51.8%
Voluntary report9735.8%
User facility report00%
Distributor report00%
Not given16962.4%

Each share is of the 271 reports that name this brand, not of the devices in use.

Device problems coded

Device problem codes in the reports that name Cook
Device problem (FDA code)ReportsShare
Breakthe device broke3312.2%
Difficult to removethe device was hard to remove165.9%
Replace134.8%
Device, or device fragments remain in patient124.4%
Explanted114.1%
Difficult to insertthe device was hard to insert93.3%
Material separation83%
Detachment of device component72.6%
Wire(s), breakage of72.6%
Migration or expulsion of device51.8%
Crackthe device cracked41.5%
Tip breakage41.5%
Bent31.1%
Device, removal of (non-implant)31.1%
Disconnection31.1%
Entrapment of device31.1%
Fracturea broken bone31.1%
Leak/splashthe device leaked31.1%
Difficult or delayed positioning20.7%
Dislodged20.7%

These are the device problem codes of FDA, as written on the report. One report can have more than one code. The table leaves out general codes such as "no apparent adverse event".

Patient problems coded

Patient problem codes in the reports that name Cook
Patient problem (FDA code)ReportsShare
Foreign body, removal of269.6%
Surgical procedure269.6%
Therapy/non-surgical treatment, additional238.5%
Surgical procedure, repeated72.6%
Hospitalization required62.2%
Necrosisdeath of tissue62.2%
Nonresorbable materials, unretrieved in body51.8%
Surgical procedure, additional51.8%
Bleeding41.5%
Painpain, site not specified41.5%
Swellingswelling41.5%
Abscessa collection of pus31.1%
Foreign body in patientpart of a device left in the patient31.1%
Deaththe patient died; cause not stated by this term20.7%
Inflammationinflammation20.7%

Patient problem codes are mainly in reports sent since 2019, and the field is often empty.

Pages near this one

These links are for navigation. No count selected them. The page of the device type lists each brand name with product code DQO.

Official pages

The site checked these addresses on . The links open in a new tab.

Cite this page

Reported Reactions. Cook: medical device reports that FDA received. https://reportedreactions.com/device/cook/ Source: U.S. Food and Drug Administration, openFDA Device Adverse Event (MAUDE) files, release of . Reports received through .

Where the data come from

The counts come from the openFDA Device Adverse Event (MAUDE) bulk files, release of 23 Oct 2026. The files have the reports that FDA received through 30 Sep 2026. Brand names, generic names and manufacturer names are as written on the reports. The names of the product codes come from the device classification of FDA.

A report is in the count when a device in it has this brand name, after the site removes differences of punctuation and capital letters. The site does not publish a report narrative, a lot number, a detail of a patient or the identity of a reporter. The record of FDA is the authority. See how the site counts reports, the data sources and the corrections page.

Questions

Do these reports show that Cook was at fault?

No. FDA says:

The submission of an MDR itself does not necessarily demonstrate that the device caused or contributed to the adverse outcome or event.

Source: FDA Center for Devices and Radiological Health, About Manufacturer and User Facility Device Experience (MAUDE) Database. Content current as of . The site read the page on .

Confirming whether a device actually caused a specific event can be difficult based solely on information provided in a given report.

Source: openFDA, Manufacturer and User Facility Device Experience. The site read the page on .

What event types do the reports record?

Death (6), injury (129), malfunction (122) and other (12). The event type is the classification that the reporter gave: death, injury, malfunction or other. FDA does not verify it.

Who sent these reports?

Voluntary reports (35.8%) and manufacturer reports (1.8%). These are the sources of the reports that name this brand.

Some reports come directly from user facilities (like hospitals) or device importers (distributors), while others come directly from manufacturers.

Source: openFDA, Device Adverse Event Overview. The site read the page on .

How does a person report a problem with a medical device?

FDA runs MedWatch, a program that takes voluntary reports about medical devices. The guide on how to report has the links.