K-numberK253403
Device nameFemVue® Controlled Saline-Air Device (FSA-300)
ApplicantFemasys, Inc.
Product codeLKF
Device classClass II
Decision dateDec 15, 2025
DecisionSubstantially Equivalent
Regulation884.4530
AI Summary extracted from FDA summary PDF · never regenerated
Intended use

The FemVue® Controlled Saline-Air Device is a sterile, single-use dual-barrel contrast media syringe that delivers an alternating pattern of saline and air into the uterus and fallopian tubes through a connected intrauterine catheter. It is used during sono-hysterosalpingogram (Sono-HSG) ultrasound procedures to visualize the fallopian tubes, with or without assessment of the uterine cavity.

Technological characteristics

Both the subject device and predicate device are dual-barrel contrast media syringes with identical core design features: ratcheted plunger design, spin Luer catheter connection, single-use construction, and ethylene oxide sterilization. The key difference is that the subject device views contrast bubbles through the Luer neck rather than through a viewing window, but this does not raise different safety or effectiveness questions.

Test standards cited

ISO 11135:2014 and AAMI TIR 28:2016 for ethylene oxide sterilization; ISO 10993-5, 10993-10, and 10993-23 for biocompatibility (cytotoxicity, sensitization, irritation); ASTM F2096-11 for bubble leak testing; ASTM F88/F88M-23 for seal strength; ASTM D4169-22 for transportation simulation; ASTM F1980-21 for accelerated aging.

Substantial equivalence argument

The subject device is substantially equivalent to the predicate device (FemChec® K241693) because both are dual-barrel contrast media syringes with identical intended use, same regulatory classification (Class II), same materials, fundamental design, and sterilization method. Testing demonstrates the subject device is as safe and effective as the predicate, with the viewing window difference not raising different safety or effectiveness concerns.

Extracted by AI from the official FDA summary PDF →
Source

View the full FDA submission: accessdata.fda.gov

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