The Gunther Tulip IVC filter lawsuits are product liability claims against Cook Medical alleging that its Günther Tulip inferior vena cava filter, a small metal device implanted to catch blood clots before they reach the lungs, fractures, migrates, tilts, and punctures the vein wall, causing serious internal injuries. The cases are consolidated in a federal multidistrict litigation in Indiana that remains active in 2026, with roughly 6,500 claims still pending and no global settlement in place, though the parties have reached agreement on the major terms for a batch of cases.
What Plaintiffs Say Went Wrong
The Günther Tulip is a retrievable IVC filter, meaning it was designed so a physician could remove it once the patient’s clotting risk passed. Plaintiffs allege the device cannot withstand the normal forces inside a living body. Once implanted, they say, it is prone to fracturing, migrating from its intended position, tilting, and perforating the vena cava wall. Broken metal struts can travel to the heart or lungs and, plaintiffs argue, cause the very pulmonary embolism the filter was supposed to prevent.1AboutLawsuits.com. Gunther Tulip Filter Lawsuit: IVC Device Fractured, Punctured Abdomen
The injuries claimed in the suits include internal bleeding, damage to surrounding organs, heart attack, stroke, the need for open surgery to remove a failed filter, and death.2Lawyernc.com. Cook IVC Filter
Two published imaging studies feature heavily in the litigation. In 2012, researchers at the University of California, San Francisco reviewed CT scans of 50 Günther Tulip and Celect filters and found that 86% showed at least one component perforating the vena cava wall. Every filter imaged after 71 days in the body showed some degree of perforation, and every tilted filter had also perforated the vein.3PubMed. Perforation of the IVC: Rule Rather Than Exception After Longer Indwelling Times for the Günther Tulip and Celect Retrievable Filters A larger study by McLoney and colleagues reviewed 160 Günther Tulip filters and found a 43% perforation rate at a mean follow-up of 437 days.4PubMed. Complications of Celect, Günther Tulip, and Greenfield Inferior Vena Cava Filters on CT Follow-Up
The FDA has separately urged clinicians to remove retrievable IVC filters as soon as the patient’s pulmonary embolism risk subsides. A decision analysis cited by the agency in its May 2014 safety communication suggested the risk-benefit profile favored removal between 29 and 54 days after implantation.5Endovascular Today. FDA Updates Safety Communication on IVC Filter Retrieval
Where the Litigation Stands
Lawsuits against Cook Medical were consolidated in 2014 into MDL 2570, In Re: Cook Medical, Inc., IVC Filters Marketing, Sales Practices and Products Liability Litigation, before Senior Judge Richard L. Young in the U.S. District Court for the Southern District of Indiana. Magistrate Judge Tim A. Baker assists with pretrial matters and, since 2025, has served as the settlement mediator.6U.S. District Court, Southern District of Indiana. MDL Case Information
More than 11,400 cases have been filed in the MDL over the years. As of mid-2026, approximately 6,500 remain pending, and roughly 4,550 have been resolved through settlements, dismissals, and other dispositions.7Drugwatch. IVC Filter Lawsuits8MDL Update. MDL 2570 – Cook Medical, Inc., IVC Filters More than 2,000 cases have been dismissed through screening orders designed to weed out meritless filings.9Faegre Drinker. Cook Medical Litigates National MDL Involving IVC Filter
Two legal theories drive the master complaint. The first is design defect: the filters cannot withstand normal forces inside the body and a safer alternative design existed. The second is failure to warn: Cook knew or should have known about the risks and concealed them from doctors and patients.10ClassAction.org. Cook IVC Master Complaint In practice, the design defect theory has fared better. In the first bellwether, Judge Young granted summary judgment to Cook on the failure-to-warn claim and let only the design defect claim reach the jury.9Faegre Drinker. Cook Medical Litigates National MDL Involving IVC Filter
What the Bellwether Trials Have Shown
Three cases have gone to verdict, with mixed results:
- Hill v. Cook Medical (November 2017). The first bellwether ended in a unanimous defense verdict. The jury concluded the plaintiff had not proved the filter was defective.9Faegre Drinker. Cook Medical Litigates National MDL Involving IVC Filter
- Pavlock v. Cook Medical (May 2018). A Texas jury awarded plaintiff Jeffrey Pavlock $1.2 million after finding Cook failed to properly warn the implanting surgeon.8MDL Update. MDL 2570 – Cook Medical, Inc., IVC Filters
- Brand v. Cook Medical (February 2019). An Indianapolis jury returned a $3 million verdict for Tonya Brand on strict-liability design defect and negligent design claims but declined to award punitive damages. In January 2020, Judge Young vacated the verdict and ordered a new trial, finding that an internal Cook document listing 27 deaths associated with its IVC filters had been improperly admitted.11FindLaw. In Re: Cook Medical, Inc., IVC Filters Marketing, Sales Practices and Product Liability Litigation
The prior bellwethers focused on the Celect filter, a related Cook device. As of early 2026, Judge Young was setting new test trials specifically for cases involving the Günther Tulip.12Rheingold Law. Cook IVC Filter Lawsuits
Settlement Status
Cook Medical has not agreed to a global settlement. The company’s approach has been to address cases individually or in batches. In October 2025, court documents indicated the parties had “reached agreement on the major terms and conditions of settlement” for a group of active cases, though dollar amounts were not publicly disclosed.8MDL Update. MDL 2570 – Cook Medical, Inc., IVC Filters Settlement conferences continued into 2026 under Magistrate Judge Baker.
The Pavlock verdict of $1.2 million and the Brand verdict of $3 million, even after Brand was vacated, have been cited as reference points in settlement discussions. Confidential individual evaluations ultimately determine what any particular plaintiff might receive.12Rheingold Law. Cook IVC Filter Lawsuits
How Individual Claims Are Being Sorted
Judge Young has ordered all plaintiffs to submit Claim Categorization Forms detailing the condition of their filter and the nature of their injuries. The forms use seven categories, from “product-in-place” (the filter remains in the body without surgical intervention) up to wrongful death. They also distinguish between cases requiring open surgery to remove a filter and less invasive percutaneous retrieval, a distinction that may affect how a claim is valued.12Rheingold Law. Cook IVC Filter Lawsuits
Each plaintiff must also certify that claimed damages exceed $75,000, the federal jurisdictional minimum.12Rheingold Law. Cook IVC Filter Lawsuits That threshold has real teeth. In June 2023, the Seventh Circuit dismissed two consolidated cases, Sykes v. Cook Incorporated and Parton v. Cook Medical, for lack of federal jurisdiction, finding it “legally certain” that neither plaintiff could recover more than $75,000. Both had described their injuries as largely asymptomatic and had not suffered the serious harms alleged in the master complaint.13Justia. Parton v. Cook Medical, LLC, No. 22-2256 Individualized proof of injury matters for every plaintiff in the MDL. A filter that sits in place without symptoms is unlikely, on its own, to support a claim in federal court.