Court, Explained
U.S. Federal District Courts
Back to docket
N.D. Cal.Procedural orderFiled Sept. 14, 2026

Perez v. Apyx Medical Corporation

Judge
Jon Tigar
Docket
4:25-cv-06713
Court
U.S. District Court · Northern District of California
Pages
12

Counsel6 of record
PLAINTIFF
Brian Graziani Sisneros Graziani LLP
Roger L. Sisneros Law Offices of Arnold Laub, P.C.
DEFENDANT
Melissa Paulette Wilner Klein Thomas Lee & Fresard
Aiza Hussain Siddiqi Klein Thomas Lee & Fresard
Sara K. Thompson Greenberg Traurig, LLP
Katherine Michelle Wittlake Greenberg Traurig, LLP

Counsel of record per CourtListener. Firm names are approximate and have been consolidated across spelling variants.

Motion to DismissCivil ProcedureTort
In one sentence

In Tesse Perez v. Apyx Medical Corporation, Judge Tigar granted Apyx’s dismissal motion, allowing Perez 21 days to amend identified pleading deficiencies.

Who this affects

Tesse Perez and Apyx Medical Corporation; Perez’s strict products-liability and negligence claims against Apyx were dismissed with leave to amend, and the order permits an amended complaint within 21 days.

What happened

In Tesse Perez v. Apyx Medical Corporation, Perez sued over injuries she alleges resulted from a surgical procedure using Apyx’s Renuvion product. She asserted strict products liability and negligence claims, alleging severe burns, related injuries, and scarring.

The court rejected Apyx’s arguments that the claims were barred by federal medical-device law. It also found that Perez adequately alleged a connection between Renuvion and her injuries and could pursue a consumer-expectations theory at the pleading stage. But the court ruled that she did not identify what design, manufacturing, or warning defect affected the product, so her claims were not adequately pleaded.

Judge Jon Tigar granted Apyx’s motion to dismiss with leave to amend. Perez may file an amended complaint within 21 days, but only to correct the deficiencies identified in the order.

The detailed version

For law students, journalists, and other readers who want the full reasoning

Case
Perez v. Apyx Medical Corporation · No. 4:25-cv-06713
Judge
Jon Tigar
Date
Sept. 14, 2026

Background

Tesse Perez brought products-liability and negligence claims against Solta Medical, Inc., Bausch Health Companies Inc., and Apyx Medical Corporation after a surgical procedure. The motion addressed Apyx. Perez alleged that Dr. David Sieber used Solta’s VASERlipo product for liposuction and Apyx’s Renuvion product for skin resurfacing and body contouring. She alleged that she suffered severe burns, related injuries, and substantial scarring.

Perez alleged that the Food and Drug Administration had warned in June 2022 against using Renuvion for skin contraction with liposuction. Against Apyx, she asserted strict products liability under risk-expectation and consumer-expectations theories, along with negligence in designing, manufacturing, marketing, and selling Renuvion.

Apyx moved to dismiss for failure to state a claim. The court had jurisdiction under 28 U.S.C. § 1332(a). The court had previously quashed Perez’s service of the complaint for improper service, but Perez later filed a certificate of service. The order addressed the motion to dismiss for failure to state a claim.

Federal Preemption

Federal preemption means that federal law displaces or prevents enforcement of state law. Apyx argued that Perez’s claims were impliedly preempted by the Food, Drug, and Cosmetics Act because they supposedly sought to impose liability for off-label marketing, even though the Act does not allow private enforcement.

The court rejected that argument. It concluded that Perez’s claims were, at their core, traditional state-law design-defect and negligence claims, not claims seeking to enforce the federal Act. The court therefore held that the claims were not impliedly preempted.

The court also rejected Apyx’s argument that the strict-liability design-defect claims were specifically preempted under 21 U.S.C. § 360k. The court distinguished authority involving a different federal approval process and found that Renuvion had been approved through the Food and Drug Administration’s 510(k) process. It held that the cited specific-preemption provision did not preempt Perez’s state-law design-defect claims in this case.

Failure to Identify a Defect

The court held that Perez did not adequately allege a defect in Renuvion. Under California law, a plaintiff bringing strict products-liability or negligence claims must allege how the product was defective. Perez alleged that Renuvion did not perform as safely as an ordinary consumer would expect and that its risks were substantial, but the court found those allegations conclusory because they did not identify the particular design defect.

The court also found that Perez did not identify a manufacturing defect or warning defect. It dismissed her strict products-liability claims because the complaint did not explain how the product was defective.

The negligence claim failed for the same basic reason. Although Perez alleged that Apyx failed to use reasonable care in designing, manufacturing, marketing, supplying, inspecting, repairing, distributing, and selling Renuvion, she did not identify the design defect that caused her injury. The court therefore found that she had not adequately pleaded negligence.

Causation and Consumer Expectations

The court rejected Apyx’s separate argument that Perez had not adequately pleaded causation. The complaint alleged that Renuvion was used during the procedure, that Perez suffered burn wounds and scarring, that the Renuvion design caused harm, and that the product’s failure to perform safely was a substantial factor in causing her harm. The court held that these allegations were sufficient at the motion-to-dismiss stage and declined to require the type of proof associated with summary judgment.

The court also declined to dismiss the consumer-expectations theory on the ground that Renuvion was used by physicians and trained medical professionals. The authority Apyx cited concerned limits on applying that theory at trial and the use of expert testimony, not whether the complaint adequately pleaded the theory.

Disposition

The court granted Apyx’s motion to dismiss with leave to amend. Within 21 days of the order, Perez may file an amended complaint solely to cure the deficiencies identified in the order. The opinion does not state that the dismissal was with or without prejudice.

The authoritative version

Read the full 12-page opinion on CourtListener, the free public archive maintained by the Free Law Project.

Open opinion PDF →
Summary written with AI assistance. See how summaries are made. Spot something wrong? Tell us.