Cleared Traditional

K231661 - CryoThin Surgical System and Accessories

K231661 is an FDA 510(k) clearance for CryoThin Surgical System and Accessories, manufactured by Medinux (Tianjin) Technologies Co., Ltd.. The device is a Class 2 General & Plastic Surgery device with product code GEH cleared through the Traditional 510(k) pathway after a 173-day FDA review.

K231661 · Medinux (Tianjin) Technologies Co., Ltd. · General & Plastic Surgery device
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Nov 2023
Decision
173d
Days
Class 2
Risk

K231661 is an FDA 510(k) clearance for the CryoThin™ Surgical System and Accessories. Classified as Unit, Cryosurgical, Accessories (product code GEH), Class II - Special Controls.

Submitted by Medinux (Tianjin) Technologies Co., Ltd. (Tianjin, CN). The FDA issued a Cleared decision on November 27, 2023 after a review of 173 days - an extended review cycle.

This device falls under the General & Plastic Surgery FDA review panel, regulated under 21 CFR 878.4350 - the FDA general and plastic surgery device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the General & Plastic Surgery review framework, consistent with the majority of Class II 510(k) submissions.

View all Medinux (Tianjin) Technologies Co., Ltd. devices

FDA 510(k) Submission Details - K231661

510(k) Number K231661 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 07, 2023
Decision Date November 27, 2023
Days to Decision 173 days
Submission Type Traditional
Review Panel General & Plastic Surgery (SU)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
58d slower than avg
Panel avg: 115d · This submission: 173d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

GEH Device Classification - Class 2, Special Controls

Product Code GEH Unit, Cryosurgical, Accessories
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 878.4350
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most General & Plastic Surgery devices follow this clearance model.

Regulatory Peers - GEH Unit, Cryosurgical, Accessories

All 116
Devices cleared under the same product code (GEH) and FDA review panel - the closest regulatory comparables to K231661.
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