Lawsuit Alleges Cook Tulip Filter Fractured, Perforated Inferior Vena Cava (IVC)

Complaint joins nearly 7,000 similar IVC filter lawsuits being pursued against Cook Medical, as lawyers prepare to select a group of Tulip implants to prepare for a series of bellwether trials.

Cook Medical continues to face a steadily growing number of new lawsuits over its inferior vena cava (IVC) filters, even as the U.S. District Judge presiding over the litigation works to prepare representative claims for bellwether trials and lawyers continue to negotiate IVC filter settlements to resolve claims.

As recently as October 28, Monica Cervantes, of California, filed a new complaint (PDF) indicating that design defects caused her Cook Tulip filter to migrate out of position after it was placed in her vena cava, perforating the vein and then breaking into pieces.

According to the lawsuit, defendants Cook Medical Inc. and its subsidiaries designed a defective medical device and failed to warn consumers or the medical community about the potential risk of IVC filter complications that could arise.

IVC filters are small, spider-like devices inserted into the vein to intercept blood clots that break free in the body and head for the heart and lungs. They are frequently implanted in patients at risk of experiencing pulmonary embolism, who are unable to take anticoagulants or have tried those types of medication to no effect.

However, over the past decade, several designs have been linked to problems where the struts have punctured the vena cava, migrated out of position, or even fractured, sending small pieces into the lungs and heart, where they can cause life-threatening injuries.

As a result, tens of thousands of individuals like Cervantes have filed Bard IVC filter lawsuits and Cook IVC filter lawsuits, and the manufacturers of certain retrievable designs have agreed to pay millions in settlements to resolve individual claims. However, as new claims continue to be filed, several categories of unresolved lawsuits are still heading toward trial.

According to Cervantes, she received her Cook Tulip IVC filter in 2007 after suffering injuries from a motor vehicle accident. However, the filter later migrated out of position, becoming embedded in, and then puncturing, her inferior vena cava.

The lawsuit indicates the device then fractured and required surgical removal. Cervantes indicates the device failed because Cook Medical defectively designed and manufactured the implant, and then deceptively advertised it as safe.

“At all times relevant to this action, Cook intentionally, recklessly, and/or negligently advertised, labeled, promoted, marketed, sold and/or distributed its IVC Filters as a safe medical device when in fact Cook had reason to know, and/or did know, that its IVC Filters were not safe for its intended purposes, and that its IVC Filters caused serious injury and death.”

– Monica Cervantes v. Cook Medical, Inc. et al.

Cervantes presents claims of failure to warn, design defect, negligence, negligence per se, breach of warranty and violations of California consumer fraud and unfair and deceptive trade practices laws.

Cook Medical IVC Filter Lawsuits

The new complaint will be transferred to the U.S. District Court for the Southern District of Indiana, where it will be consolidated as part of a federal multidistrict litigation (MDL) pending before U.S. District Judge Richard L. Young, who is overseeing pretrial proceedings on nearly 7,000 existing cases.

To help the parties and the courts see how juries respond to evidence and testimony likely to be repeated throughout the litigation, Judge Young has been preparing several groups of cases and coordinating IVC filter settlement talks between the manufacturer and individual plaintiffs’ law firms.

In June 2025, Judge Young recognized that the parties had not yet taken a Cook Tulip IVC filter to trial, and issued a case management order (PDF) outlining the plan for preparing a group of representative claims to go before juries.

Earlier this month, the parties submitted a joint list (PDF) of 376 eligible Cook Tulip claims that should be considered for the bellwether trials. However, following a request by the plaintiffs, Judge Young issued a modified order (PDF) on October 27, indicating that claims involving deceased plaintiffs should be removed from the list, since they were not representative of the larger pool of claims.

Eventually the plan is for plaintiffs, defendants and the court to each select eight potential bellwether lawsuits, for a total of 24 that will be prepared for trial. However, those bellwether trials may not be necessary if the parties are able to reach a settlement agreement for the majority of claims.

IVC Filter Settlement Conferences

The Court has been overseeing a series of IVC filter settlement talks between Cook Medical and individual law firms over the past few months, in hopes of resolving large groups of claims, and avoiding the need for hundreds of separate trials to be scheduled in the coming years.

On October 28, U.S. Magistrate Judge Tim A. Baker issued an order (PDF) announcing that one law firm had met with defendants that day for settlement negotiations, yet failed to reach an agreement. The order notes more negotiations are scheduled in that case for January 5, 2026.

In a separate order (PDF) issued that same day, Judge Baker announced a settlement conference with a second firm, which is scheduled for November 19, 2025, with a confidential settlement statement due from plaintiffs and defendants three days prior to the conference. 

If no settlement agreements are reached after the negotiations or the bellwether trials, Judge Young will likely begin remanding large numbers of individuals claims back to U.S. District Courts nationwide for individual trial dates.

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