In case our title was too subtle, we think that a stack of purported inferences should neither state a claim for strict liability with a prescription medical device nor sidestep express preemption in the case of a Class III device. We have long been dubious of the idea of a true parallel claim as articulated by Riegel and some of its misguided progeny. Most of the state law duties that plaintiffs push in these cases are bogus. Existing state law is rarely going to require what the FDCA requires of devices approved pursuant to a PMA. These same plaintiffs almost always urge that their device was defective because it did not comply with FDA requirements. Predicating claims on violations of the FDCA, including failing to submit required materials to FDA during or after the approval process, should run headlong into Buckman implied preemption. When it comes to Class III devices, two of the three species of product liability, design defect and warnings (or informational) defect claims, are almost never going to be legitimate routes to avoid both express and implied preemption. The third, manufacturing defect, has a shot. The main problems with those claims, however, are that plaintiffs can rarely plead them with TwIqbal-compliant factual support and that they are properly limited to deviations from approved specifications, which are rarely provable and usually logically inconsistent with design defect theories. Shortcutting manufacturing defect allegation requirements by making a res ipsa loquitur argument also should not work.
These dynamics played out in Purohit v. Abbott Labs., Inc., No. 2:25-cv-01026-JAD-EJY, 2025 WL 3527245 (D. Nev. Dec. 8, 2025), a case about an alleged manufacturing defect in a bioprosthetic heart valve, a Class III device that the manufacturer withdrew from the market in 2023. Predictably, the plaintiff tried to avoid picking one of the types of defects recognized by Nevada law. We previously reported on Schmidt v. C.R. Bard, Inc., a class II device product liability decision out of the same court. In Schmidt, the plaintiff dropped his manufacturing defect claim before the court granted summary judgment on his warnings and design defect claims. Probably because of the obvious preemption of warnings and design claims, the Purohit plaintiff advanced only a manufacturing defect claim when forced to articulate something more than a defect in the air claim. His anti-preemption argument was that his valve being replaced nine years after implant meant that it had “deteriorated faster than expected,” which meant it had been defectively manufactured, which meant it violated FDA requirements, which meant that he had asserted a mythical parallel claim that dodged the FDCA’s express preemption of state law requirements that are “different from, or in addition to, any requirement” under the FDCA. Plaintiff also offered an alternative insertion in between first and second “which” clauses above: “which was similar to why the manufacturer withdrew the device from the market in 2023.” Nice try, we guess.
In rejecting this daisy chain, the Purohit court had the advantage of the strong Ninth Circuit decision in Weber v. Allergan, which we discussed here. Weber firmly rejected that an alleged misrepresentation about failure rate in the approved labeling for a Class III device was the same as a deviation from FDA requirements. When it came time to articulate a particular deviation from FDA requirements, the Purohit plaintiff flailed. He tried the circular argument that the purported failure of the prostheses in his case was itself proof of a violation of the specifications required by the PMA approval of the device. 2025 WL 3527245, *4. Failure, without more, does not establish defect. It certainly does not establish that a device was manufactured contrary to specs. Plaintiff offered no factual allegations to support his reductionism.
Plaintiff next claimed that the voluntary withdrawal of the device in 2023—sometimes equated in Purohit to a recall—established that his device deviated from FDA requirements. There is an extensive collection of cases that say the opposite, including a number from and within the Ninth Circuit. See here and here for some of them. You cannot infer a deviation from a recall or from an alleged malfunction. You also cannot infer a defect from either. Purohit followed this law and reasoning. As it said, “The FDA approves products knowing that there is a possibility that a full compliance product can fail. So the withdrawal of a product from the market does not automatically mean the product [did not] meet FDA requirements.” Id. (We also think that there was another problem with plaintiff’s recall argument. His prostheses lasted nine years before its alleged failure. The market withdrawal, from information on FDA’s website, was driven by the rate of particular structural failures within five years of implant. Maybe nine years is not so bad for a tissue-based aortic valve. After all, aortic valves are subject to quite a bit of pressure and stress; back when we did litigation relating to aortic valves, replacements with tissue, as opposed to artificial materials, typically lasted less than ten years before another surgery was indicated. If a recall or withdrawal is ever going to be proof of a parallel claim, then it should be all fours with the case-specific allegations.)
Plaintiff also offered a Lance-like argument that the company should have withdrawn the product earlier, which was purportedly a state law obligation and somehow proof of a deviation from FDA requirements for his valve. The Purohit court held this claim, to the extent it had been asserted at all, preempted. Id. “Purohit does[ not] point to any FDA requirement or any relevant statute or regulation that imposes such a requirement [and] such an allegation is irrelevant for a products-liability claim in which Purohit must allege that the manufacturing of the product deviated from a particular FDA requirement.” Id. Interestingly—at least to us—the court elected to rule on preemption and not whether the complaint stated a valid Nevada claim for failure to withdraw. Id. at *4 n.56. We do not think Nevada has such a claim, based on Lance or otherwise. So, there was another reason why plaintiff’s complaint should have been dismissed, arguably before addressing preemption. The court’s approach, though, probably helped it reach the next step that courts are often reluctant to take: denying a request to amend the complaint. An amendment would have been futile, largely because plaintiff’s request to amend did not identify what allegedly violated requirement would be addressed in a proposed amendment and the court was not going to allow plaintiff to shift to a new theory of liability. Id. at *5. Indeed, this may have been our favorite part of Purohit. If parallel claims are unicorns and the plaintiff cannot plead one up front, then there should be some good basis offered before the plaintiff gets another chance to offer factual allegations supporting a myth.