Ninja Kitchen Blender Lawsuit Alleges Blade Assembly Detached, Sliced Woman’s Hand

Woman claims SharkNinja could have used a safer design, yet chose to place profits ahead of consumer safety.

A Massachusetts woman’s product liability lawsuit alleges the blade in a defectively designed SharkNinja blender detached from the pitcher, causing severe lacerations to her hand.

The complaint (PDF) was brought by Jessica Duquesnay in the Superior Court of Massachusetts on May 8, naming SharkNinja Operating LLC as the defendant.

Duquesnay alleges SharkNinja defectively designed the blender in a way that allows the removable blade assembly to unexpectedly detach during normal use. The lawsuit also claims the company failed to adequately warn consumers about the risk and declined to adopt safer alternative designs that could have prevented injuries.

Kitchen Appliance Laceration and Burn Lawsuits

SharkNinja blenders have become popular small kitchen appliances in recent years, marketed for their powerful motors and “Total Crushing” blade technology. Unlike standard blenders, the devices use a removable blade assembly that detaches from the pitcher.

However, a number of SharkNinja blender lawsuits have been filed by individuals who claim that a product defect allows the devices to separate or explode, sending metal blades, plastic shards or even scalding liquids onto users. Similar lawsuits have been filed against NutriBullet blender systems, claiming those devices often do not account for heat and pressure buildup during normal use, causing dangerous explosions.

The allegations add to growing safety concerns involving small kitchen appliances that rely on high-speed motors, sealed containers or pressurized components. In May 2025, SharkNinja recalled nearly 2 million Ninja Foodi pressure cookers after more than 100 burn injuries were reported, many involving claims that the lid could open while the contents remained under pressure.

Those injuries have fueled a broader wave of pressure cooker explosion lawsuits against several manufacturers, including Ninja Foodi, Instant Pot and Crock Pot. The complaints allege defective pressure cooker designs allow lids to open during cooking, causing scalding-hot food and liquid to erupt from the devices and leave users with severe burns.

SharkNinja Blender Injury Lawsuit

Duquesnay’s lawsuit indicates she was using the SharkNinja BL770 Series Ninja Mega Kitchen System on May 10, 2024, to make a smoothie when the double stacked blade assembly detached from the pitcher and sliced her left hand. She required immediate medical attention.

The complaint states the blade lacerated Duquesnay between her left wrist and thumb and caused serious puncture wounds. The severe laceration caused permanent damage to her hand, along with physical and mental pain and suffering.

Her lawsuit alleges the blender was defectively designed because the blade assembly may detach from the pitcher without warning, even after blending has stopped and consumers are simply pouring out the contents.

Duquesnay argues that SharkNinja had safer alternative design options available, including a locking mechanism option to permanently affix the blade to the pitcher, yet chose not to use that design. This allegedly created an unreasonably dangerous design and unnecessary risk for users, the lawsuit states.

“As a direct and proximate result of SharkNinja’s intentional concealment of its defects, its failure to warn consumers of such defects, its negligent misrepresentation, its failure to remove a product with such defects from the stream of commerce, and its negligent design of such products, Jessica Duquesnay used an unreasonably dangerous blender, which resulted in significant permanent bodily injuries.”

— Jessica Duquesnay v. SharkNinja Operating LLC

The lawsuit presents claims of defective product/design defect, negligence, and breach of implied warranty of merchantability. It seeks compensation for damages, including mental and physical pain and suffering, loss of time, past and future medical expenses, and compensation for disfigurement and permanent injuries.

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