By Rafsana Writu
In April 2026, the U.S. Food and Drug Administration issued an early warning about certain Cook Medical sizing catheters.1 The concern centers on marker bands that can crack or break during use, potentially leaving device fragments inside the body. Although no serious injuries or deaths have been reported so far, the risks associated with such an occurrence are significant.
Patients typically won’t know what type of sizing catheter will be used during their procedure. However, patients receiving a Cook Celect or Günther Tulip inferior vena cava filter may have a Cook sizing catheter used to measure the width of the inferior vena cava. These may include:
- Centimeter Sizing Catheters
- Aurous Centimeter Sizing Catheters
- Beacon Tip Centimeter Sizing Catheters
Medical equipment is designed to save lives. So what happens when that equipment puts lives at risk instead? The recent safety concerns surrounding Cook Medical are a reminder that even essential devices can pose a danger.
What Are Inferior Vena Cava Filters?
Inferior vena cava (IVC) filters are medical devices widely used to help prevent blood clots from traveling to the lungs, particularly in patients who are unable to take anticoagulants. These devices play a critical role in preventing pulmonary embolisms and are commonly used in vascular procedures.1 However, safety doesn’t rest on the filter alone, it also depends on the equipment used during placement, including sizing catheters.
Cook sizing catheters, and more commonly Cook marker catheters (such as pigtail catheters with radiopaque markers), are used to measure the diameter of the IVC before placing Cook IVC filters like the Celect Platinum or Günther Tulip.
Why This Matters
If a catheter fails during a procedure, the consequences can include:
- More lengthy and complicated surgeries.
- Damage to blood vessels.
- Remaining fragments within the patient.
- Increased risk of serious complications
Because these procedures are already delicate, even minor defects can have significant consequences.1
Response and Implications
The FDA’s warning recommends that healthcare providers stop using the affected devices and return them. While this hasn’t resulted in a full recall, it demonstrates how early warnings can play a key role in preventing harm. More broadly, the case highlights ongoing concerns around medical device safety and points to the need for:
- Continuous monitoring of approved devices
- Strong regulatory oversight
- Rapid response to potential hazards
The situation with Cook Medical is a reminder that patient safety must always come first. Even life-saving devices like inferior vena cava filters should be continually evaluated, and their manufacturers held accountable. Trust in healthcare shouldn’t rest on innovation alone; it should also rest on reliability and transparency when problems arise.
Injured by a Cook Medical IVC Filter or Sizing Catheter?
If you or a loved one experienced complications after receiving a Cook Medical IVC filter or sizing catheter, you may be entitled to compensation. Device fragments, vessel damage, and surgical complications from defective medical equipment can lead to serious, long-term health consequences—and manufacturers should be held accountable.
Our medical device attorneys are reviewing cases involving Cook Medical devices. Contact us today for a free, no-obligation consultation to discuss your legal options.
Sources
1 U.S. Food and Drug Administration. 2026. “Sizing Catheter Issue from Cook Medical.” https://www.fda.gov/medical-devices/medical-device-recalls-and-early-alerts/early-alert-sizing-catheter-issue-cook-medical
