REDSENSE
Device Facts
| Record ID | K071013 |
|---|---|
| Device Name | REDSENSE |
| Applicant | Redsense Medical AB |
| Product Code | ODX · Gastroenterology, Urology |
| Decision Date | Oct 18, 2007 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 876.5820 |
| Device Class | Class 2 |
| Attributes | Real-World Evidence |
Real-World Evidence
| Submission | Device | Sponsor | RWD Sources | RWE Use Summary | Key Tags |
|---|---|---|---|---|---|
| K071013 · Oct 18, 2007 | REDSENSE | Redsense Medical AB | Clinical hospital departments (Nephrology/Medicine) | Clinical testing was conducted in routine hospital settings to verify the device's ability to function successfully in the clinical environment during hemodialysis. | Clinical environment; Hemodialysis; Routine clinical practice |
Clinical Evidence
| Study Design | Population | Comparator | Key Endpoints |
|---|---|---|---|
| Clinical testing at Swedish hospitals; Clinical evaluation in a routine clinical setting | Hemodialysis patients; Number of Sites: 5 | Not applicable for this study | Successful device function in the clinical environment |
Indications for Use
The Redsense device is intended to monitor for potential blood loss from the hemodialysis access site in hemodialysis patients undergoing continuous hemodialysis treatment up to 5 hours in the clinical setting. The device includes a blood sensor incorporated into an adhesive sensor patch. The sensor monitors potential blood leakage from the venous needle puncture site via an infrared light and will alarm if blood leakage is detected via absorption onto the device's sensor patch.
Device Story
Redsense system monitors hemodialysis venous needle access sites for accidental dislodgement or leakage. System comprises alarm unit and infrared sensor integrated into adhesive patch. Sensor placed over needle puncture site; detects blood via IR light absorption if leakage occurs onto patch. Upon detection, device triggers alarm. Used in clinical settings during hemodialysis treatments up to 5 hours. Provides real-time monitoring to alert clinicians of blood loss; enables rapid intervention to prevent patient blood loss.
Clinical Evidence
Clinical testing conducted at multiple hospitals in Sweden (Eksjö, Halmstad, Hässleholm, Skövde, and Varberg). Study demonstrated the device functioned successfully in the clinical environment for its intended use.
Technological Characteristics
System includes fiber optical blood detector, adhesive, and absorbent pad. Sensing principle: infrared light absorption. Form factor: adhesive patch with 0.25 mm diameter sensor. Connectivity: standalone alarm unit. Single-use sensor patch.
Indications for Use
Indicated for hemodialysis patients undergoing continuous hemodialysis treatment (up to 5 hours) in clinical settings to monitor for potential blood loss from the venous needle puncture site.
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.