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Cook Medical Wins First IVC Filter Bellwether Trial


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Cook Medical IVC Filter Lawsuits

Cook Medical won a unanimous verdict November 9, following a three-week trial in a lawsuit blaming the company’s Celect IVC filter for a Florida woman’s injuries.

More than 3,000 lawsuits are still pending against Cook over the devices designed to catch blood clots. People claim the filters which are placed in the body’s largest vein, called the vena cava, can come loose or break and cause blood vessel or organ damage. Some of the lawsuits blame the devices for patients’ deaths.

In the federal trial in Evansville, Indiana, Elizabeth Jane Hill claimed her Cook Celect IVC filter had punctured her vena cava and become embedded in her intestine. She claimed doctors were unable to remove the device and she experienced “persistent severe gastrointestinal symptoms, fatigue, diarrhea, vomiting and abdominal pain.”

Her lawsuit claimed Cook knew the devices were defective and failed to warn doctors and patients of the risks.

“We are pleased with this outcome,” Mark Breedlove, vice president of Cook Medical’s vascular division, said in a statement. “We are dedicated to providing life-saving treatment options for patients and will continue to vigorously defend our IVC filters in future trials.”

How IVC Filters Work and Sometimes Fail

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IVC filters are small, cage-like devices designed to prevent pulmonary embolisms, a life-threatening condition that occurs when a blood clot creates a blockage in blood vessels around the lungs. The filters are placed in the vena cava to catch blood clots, which form in the lower legs before they can reach the lungs. Ideally, the cage-like design holds the clots in place until they dissolve naturally. But the devices have been associated with several severe complications when they fail.

The devices come in both permanent and retrievable models. Cook’s Celect and Günther Tulip models are retrievable IVC filters, meaning they are not meant to be left in patients permanently.

Retrievable models may be used when there is a short-term risk of serious blood clotting, such as after surgeries or following traumatic accidents. Other options for preventing pulmonary embolisms include the use of anti-coagulants, powerful blood-thinning drugs, to prevent blood clots from forming.

In 2010 and again in 2014, the U.S. Food and Drug Administration issued safety notices warning about possible dangers associated with leaving retrievable IVC filters in place for too long. The agency said it had received reports that the devices had broken, migrated through the body or caused organ damage including injuries to the heart.

The FDA recommends doctors remove a retrievable IVC filter as soon as blood-clotting danger passes, ideally between 29 and 54 days after the device is first implanted.

A 2017 study in JAMA Internal Medicine found that reports of complications, FDA warnings and lawsuits over IVC filters led to a significant decline in the devices’ use. In 2010, IVC filter use peaked at roughly 120,000 of the devices placed in U.S. patients. Following the FDA advisories and mounting lawsuits against their manufacturers, IVC filter use declined to 96,000 in 2014.

Thousands of IVC Filter Lawsuits Combined in Federal Courts

Hill’s lawsuit is part of a federal multidistrict litigation (MDL) involving more than 3,000 lawsuits over Cook IVC filters that have been combined in Indiana federal court. MDLs allow a federal panel to consolidate lawsuits with similar injuries and complaints in a common action. This allows the lawsuits to move more quickly through the pretrial process.

MDL courts then choose a series of lawsuits, nominated by lawyers for both sides, as bellwether trials. These are “test cases” that measure how lawsuits may fare before a jury. These can sometimes determine if parties should reach a settlement and what settlement amounts they should seek. This can head off the need for further lawsuits.

Hill’s lawsuit was the first bellwether in the Cook Medical MDL. Her case was recommended by Cook’s attorneys. Two more cases have been selected as bellwethers. The next one is scheduled to begin April 30, 2018 and the third case is set for September 10, 2018.

Another 3,000 IVC filter lawsuits against medical device maker Bard are also pending in a separate MDL in Arizona federal court. The Bard MDL court has chosen five cases as bellwethers but is still in the process of scheduling when the trials will begin.

Earlier this month, Bard asked that the lawsuits be dropped, arguing their claims were preempted, meaning Bard could not be sued over the devices because the FDA had approved them. The Arizona court denied Bard’s request saying the approval process Bard followed did not rise to the legal level that would allow preemption.

Terry Turner
Written By Terry Turner Writer

Terry Turner has been writing articles and producing news broadcasts for more than 25 years. He covers FDA policy, proton pump inhibitors, and medical devices such as hernia mesh, IVC filters, and hip and knee implants. An Emmy-winning journalist, he has reported on health and medical policy issues before Congress, the FDA and other federal agencies. Some of his qualifications include:

  • American Medical Writers Association (AMWA) and The Alliance of Professional Health Advocates member
  • Centers for Disease Control and Prevention Health Literacy certificates
  • Original works published or cited in Washington Examiner, MedPage Today and The New York Times
  • Appeared as an expert panelist on hernia mesh lawsuits on the BBC
Edited By

9 Cited Research Articles writers follow rigorous sourcing guidelines and cite only trustworthy sources of information, including peer-reviewed journals, court records, academic organizations, highly regarded nonprofit organizations, government reports and interviews with qualified experts. Review our editorial policy to learn more about our process for producing accurate, current and balanced content.

  1. U.S. Judicial Panel on Multidistrict Litigation. (2017, November 15). MDL Statistics Report. Retrieved from
  2. Cook Medical. (2017, November 9). Cook Medical Wins Favorable Verdict in IVC Filter Litigation, Commits to Continued Fight for Life-Saving Technology. Retrieved from
  3. Lexis Legal News. (2017, November 10). 1st Cook IVC MDL Bellwether Trial Ends in Defense Verdict. Retrieved from:
  4. Elizabeth Jane Hill v. Cook Medical, LLC, et al. (2017). U.S. District Court for the Southern District of Indiana, Indianapolis Division. Case No. 14-6016. Retrieved from
  5. U.S. District Court for the District of Arizona. (2017, May 5). Case Management Order No. 23. Retrieved from
  6. U.S. Food and Drug Administration. (2010, August 9). Removing retrievable inferior vena cava filters: Initial communication. Retrieved from
  7. U.S. Food and Drug Administration. (2014, May 6). Removing retrievable inferior vena cava filters: FDA safety communication. Retrieved from
  8. Ahmed, O., et al. (2017, June). Declining National Annual IVC Filter Utilization; An Analysis on the Impact of Societal and Governmental Communications. Retrieved from
  9. American College of Cardiology. (2017, July 10). Significant Decrease in IVC Filter Placement Observed Following FDA Advisory. Retrieved from
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