K Number
K981174
Date Cleared
1999-01-13

(287 days)

Product Code
Regulation Number
864.7290
Panel
HE
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

CryovCheck™ Factor XII Deficient Plasma is recommended for use as a substrate in clot-based Factor XII assays using the activated partial thromboplastin time (APTT) assay.

Device Description

Cryo✓Check™ Factor XII Deficient Plasma is frozen human plasma deficient in the Factor XII coagulation factor. It is prepared from citrated pooled normal human plasma which has been depleted of Factor XII by immunoadsorption. Activity levels of Factor XII are assayed at less than 1% normal levels while all other coagulation factors are greater than 50%.

AI/ML Overview

Acceptance Criteria and Study Details for Cryo✓Check™ Factor XII Deficient Plasma

The device's performance was evaluated through an "Open Vial Stability" study.

1. Table of Acceptance Criteria and Reported Device Performance

Acceptance CriteriaReported Device Performance (24 Hours)
Mean (+/-) 5% of reference value93 (within 5% of reference value, as 92.9% is the overall average)
%C.V.

§ 864.7290 Factor deficiency test.

(a)
Identification. A factor deficiency test is a device used to diagnose specific coagulation defects, to monitor certain types of therapy, to detect coagulation inhibitors, and to detect a carrier state (a person carrying both a recessive gene for a coagulation factor deficiency such as hemophilia and the corresponding normal gene).(b)
Classification. Class II (performance standards).