STERICHEK(TM) RESIDUAL PEROXIDE REAGENT STRPS
Device Facts
| Record ID | K974798 |
|---|---|
| Device Name | STERICHEK(TM) RESIDUAL PEROXIDE REAGENT STRPS |
| Applicant | Environmental Test Systems, Inc. |
| Product Code | LIF · Gastroenterology, Urology |
| Decision Date | Mar 20, 1998 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 876.5820 |
| Device Class | Class 2 |
Indications for Use
SteriChek™ Peroxide Reagent Strips provide a convenient means for measuring the concentration of peroxide remaining in water being used to rinse out dialysate lines and dialyzers following disinfection with peroxide/peracetic acid. The chemically treated pad changes color relative to the amount of peroxide remaining in the rinse.
Device Story
Device consists of 0.20 sq inch reagent pad on 3.25 inch opaque polystyrene strip. Pad contains 4-aminoantipyrine (4AAP), 8-amino-2-naphthalene sulfonic acid (ANS), peroxidase, and pH buffer. Input is rinse water from dialysate lines/dialyzers. Peroxidase catalyzes reaction between peroxide and indicators, producing red-purple color proportional to peroxide concentration. User compares pad color to calibrated label blocks (0-10 ppm). Used as rapid screen (<1.0 ppm) or quantitative estimate. Benefits patient by ensuring removal of residual peroxide post-disinfection.
Clinical Evidence
No clinical data. Bench testing only; performance verified by comparing reagent pad color development to calibrated color blocks representing known peroxide concentrations.
Technological Characteristics
Polystyrene strip with chemically treated reagent pad. Indicator system: 4-aminoantipyrine (4AAP) and 8-amino-2-naphthalene sulfonic acid (ANS) with peroxidase and pH buffer. Colorimetric detection method. Dimensions: 3.25 inch x 0.20 inch strip; 0.20 sq inch pad.
Indications for Use
Indicated for measuring residual peroxide concentration in rinse water for dialysate lines and dialyzers post-disinfection with peroxide/peracetic acid.
Regulatory Classification
Identification
A hemodialysis system and accessories is a device that is used as an artificial kidney system for the treatment of patients with renal failure or toxemic conditions and that consists of an extracorporeal blood system, a conventional dialyzer, a dialysate delivery system, and accessories. Blood from a patient flows through the tubing of the extracorporeal blood system and accessories to the blood compartment of the dialyzer, then returns through further tubing of the extracorporeal blood system to the patient. The dialyzer has two compartments that are separated by a semipermeable membrane. While the blood is in the blood compartment, undesirable substances in the blood pass through the semipermeable membrane into the dialysate in the dialysate compartment. The dialysate delivery system controls and monitors the dialysate circulating through the dialysate compartment of the dialyzer.(1) The extracorporeal blood system and accessories consists of tubing, pumps, pressure monitors, air foam or bubble detectors, and alarms to keep blood moving safely from the blood access device and accessories for hemodialysis (§ 876.5540) to the blood compartment of the dialyzer and back to the patient. (2) The conventional dialyzer allows a transfer of water and solutes between the blood and the dialysate through the semipermeable membrane. The semipermeable membrane of the conventional dialyzer has a sufficiently low permeability to water that an ultrafiltration controller is not required to prevent excessive loss of water from the patient's blood. This conventional dialyzer does not include hemodialyzers with the disposable inserts (Kiil type) (§ 876.5830) or dialyzers of high permeability (§ 876.5860). (3) The dialysate delivery system consists of mechanisms that monitor and control the temperature, conductivity, flow rate, and pressure of the dialysate and circulates dialysate through the dialysate compartment of the dialyzer. The dialysate delivery system includes the dialysate concentrate for hemodialysis (liquid or powder) and alarms to indicate abnormal dialysate conditions. This dialysate delivery system does not include the sorbent regenerated dialysate delivery system for hemodialysis (§ 876.5600), the dialysate delivery system of the peritoneal dialysis system and accessories (§ 876.5630), or the controlled dialysate delivery system of the high permeability hemodialysis system § 876.5860). (4) Remote accessories to the hemodialysis system include the unpowered dialysis chair without a scale, the powered dialysis chair without a scale, the dialyzer holder set, dialysis tie gun and ties, and hemodialysis start/stop tray.
Predicate Devices
- Serim™ Peroxide Reagent Strips