Therapeutic Device Reduces Postoperative Oxygen Desaturations
|
By HospiMedica International staff writers Posted on 04 Dec 2019 |

Image: The Oxistimulator TENS device (Photo courtesy of MediPines)
Peripheral stimulation technology reduces postoperative hypoxemia (oxygen desaturation) in patients at-risk for obstructive sleep apnea (OSA).
The MediPines (Orange County, CA, USA) Oxistimulator is a novel peripheral transcutaneous electrical stimulus (TES) device placed on the wrist that is designed to continuously monitor patient oxygenation levels and to reduce desaturations automatically when deemed necessary. Whenever threshold oxygen saturation (SpO2) levels are lower than 93%, the Oxistimulator provides an immediate mild electrical stimulation, a therapeutic response that is just strong enough to reverse the deterioration, without harm or discomfort to the patient.
In a double-blind study conducted at the Mayo Clinic (Rochester, MN, USA), 106 post-operative patients undergoing elective surgery who were at medium to high risk for OSA were randomized to either active stimulus (53 patients) with the Oxistimulator, or to an inactive placebo device (53 patients) at the post-anesthesia care unit. The results showed that the Oxistimulator group experienced a shorter duration of SpO2 lower than 90% than the control group, with no adverse events reported. The study was published in the November 2019 issue of the Canadian Journal of Anesthesia.
“Oxistimulator represents a breakthrough in the way that it empowers clinicians to automate their clinical response; faster response means that patients spend less time in the hypoxemia danger zone,” said Steve Lee, CEO of MediPines. “This is a novel solution to a serious clinical problem, and we are fortunate to be partnering with outstanding clinical partners to prove the clinical safety and efficacy as we bring this technology to market.”
Current pre-operative screening practices have been shown to miss nearly 50% of patients with OSA, who are at-risk for serious postoperative desaturation events that can lead to complications prolonging patient hospitalization, and in some cases, even death. Currently, the burden of catching and reducing hypoxemia after surgery falls on the clinical staff, such as nurses, who manually intervene when they see a desaturation; however, this manual process has been demonstrated to be sub-optimal.
Related Links:
MediPines
Mayo Clinic
The MediPines (Orange County, CA, USA) Oxistimulator is a novel peripheral transcutaneous electrical stimulus (TES) device placed on the wrist that is designed to continuously monitor patient oxygenation levels and to reduce desaturations automatically when deemed necessary. Whenever threshold oxygen saturation (SpO2) levels are lower than 93%, the Oxistimulator provides an immediate mild electrical stimulation, a therapeutic response that is just strong enough to reverse the deterioration, without harm or discomfort to the patient.
In a double-blind study conducted at the Mayo Clinic (Rochester, MN, USA), 106 post-operative patients undergoing elective surgery who were at medium to high risk for OSA were randomized to either active stimulus (53 patients) with the Oxistimulator, or to an inactive placebo device (53 patients) at the post-anesthesia care unit. The results showed that the Oxistimulator group experienced a shorter duration of SpO2 lower than 90% than the control group, with no adverse events reported. The study was published in the November 2019 issue of the Canadian Journal of Anesthesia.
“Oxistimulator represents a breakthrough in the way that it empowers clinicians to automate their clinical response; faster response means that patients spend less time in the hypoxemia danger zone,” said Steve Lee, CEO of MediPines. “This is a novel solution to a serious clinical problem, and we are fortunate to be partnering with outstanding clinical partners to prove the clinical safety and efficacy as we bring this technology to market.”
Current pre-operative screening practices have been shown to miss nearly 50% of patients with OSA, who are at-risk for serious postoperative desaturation events that can lead to complications prolonging patient hospitalization, and in some cases, even death. Currently, the burden of catching and reducing hypoxemia after surgery falls on the clinical staff, such as nurses, who manually intervene when they see a desaturation; however, this manual process has been demonstrated to be sub-optimal.
Related Links:
MediPines
Mayo Clinic
Latest Surgical Techniques News
- FDA Approves First Sirolimus Drug-Eluting Balloon for Coronary In-Stent Restenosis
- Light-Activated Nanoparticles May Offer New Approach to Retinal Prostheses
- Handheld Infrared Imaging Device Supports Tumor Margin Assessment During Surgery
- Needle-Free Intrauterine Anesthesia Technique Reduces Pain During IUD Insertion
- Robotic Platform Advances Fetoscopic Treatment of Twin-to-Twin Transfusion Syndrome
- Patient-Specific AI Tool Aligns X-Rays With 3D Scans For Surgical Navigation
- FDA Clears Integrated Platform for Real-Time Cardiac Imaging and Catheter Guidance
- Hydrogel Dermal Supports Healing of Complex Wounds After Cancer Surgery
- New Microcatheter Enhances Lesion Crossing in Complex Coronary Interventions
- Integrated PET/MRI and EEG Improves Presurgical Lesion Localization in Pediatric Focal Epilepsy
- Integrated Perioperative Care Model Improves Recovery in Older Surgical Patients
- New Transvaginal Transducer Improves Imaging for Gynecology and Early Obstetrics
- FDA Approves Abbott Dual-Energy Catheter for Complex AFib Cases
- Mobile 3-in-1 Imaging System Advances Intraoperative Navigation
- First Thyroid Cancer-Specific Anxiety Scale Supports Patient-Centered Care
- Tissue-Mimicking Scaffold Could Improve Rotator Cuff Repair
Channels
Artificial Intelligence
view channelAI Improves Non-Contrast CT Interpretation for Time-Sensitive Stroke Assessment
Acute ischemic stroke occurs when a blood vessel in the brain becomes blocked, requiring rapid diagnosis to enable timely reperfusion therapy. Emergency departments often use computed tomography angiography... Read more
AI-Powered ECG Model Gains FDA Authorization for Emergency Cardiac Assessment
Powerful Medical’s PMcardio Queen of Hearts (ACS AI ECG Model) has received U.S. Food and Drug Administration (FDA) De Novo authorization, announced on September 15, 2026. The model is designed to identify... Read moreCritical Care
view channel
Noninvasive Imaging Approach Aims to Detect Basal Cell Carcinoma Before It Becomes Visible
Basal cell carcinoma is the most common form of skin cancer and can damage nearby structures such as the nose or eyes when it develops on the face. Diagnosis typically depends on visible skin changes,... Read more
New Sensor Could Bring Contactless Vital Sign Monitoring to Hospital Bedsides
Continuous, non-contact vital sign monitoring could improve patient comfort and reduce infection risk by eliminating electrodes and cables that complicate nursing care and hygiene. However, camera-based... Read morePatient Care
view channel
EHR Model Flags High-Risk Periods in Patients with Metastatic Breast Cancer
Determining when patients with metastatic breast cancer are nearing the end of life remains difficult, often leading to intensive interventions with limited benefit. Prognostic uncertainty can delay goals-of-care... Read more
Virtual Reality Helps Claustrophobic Patients Complete Cardiac PET/CT Scans
Anxiety and claustrophobia—intense fear of confined spaces—often prevent patients from completing cardiac positron emission tomography/computed tomography (PET/CT). Aborted scans delay diagnosis, consume... Read moreMedical Imaging
view channel
AI Tool Integrates MRI and Ultrasound to Detect Endometriosis
Endometriosis is a chronic condition in which tissue similar to the uterine lining grows outside the uterus, causing pain, heavy bleeding, and infertility. Diagnosis often depends on surgical visualization,... Read more
New MRI Index Reveals How Brain Blood Flow Supports Cellular Energy Needs
The human brain has minimal energy reserves and relies on tightly regulated blood flow to meet its high metabolic demands. However, clinicians have lacked noninvasive tools to assess how cortical perfusion... Read moreHealth IT
view channel
New Tablet Platform Extends Stroke Neurorehabilitation Beyond the Clinic
Continuity and intensity of neurorehabilitation after stroke are critical for functional recovery, but access to ongoing therapy at home often remains limited. Hospitals and outpatient programs therefore... Read more
Smartphone App Improves Blood Pressure Control in Hypertension
Hypertension, or high blood pressure, is a major modifiable driver of cardiovascular, renal, and cerebrovascular morbidity. Despite effective therapies, many adults fail to achieve control, leading to... Read morePoint of Care
view channel
Continuous Glucose Monitoring Identifies Cardiometabolic Risk in Adults Without Diabetes
Dysglycemia—abnormal blood glucose regulation—can fluctuate throughout the day and often escape conventional screening. Clinicians typically rely on fasting plasma glucose and hemoglobin A1c, which offer... Read more
Microneedle Patch Enables At-Home Monitoring of Acute Kidney Injury
Kidney disease is often silent in its early stages, making timely detection difficult outside clinical settings. Early biomarkers such as neutrophil gelatinase–associated lipocalin can require blood draws... Read moreBusiness
view channel
Medtronic Receives FDA Clearance for Vessel-Sealing Instrument for Robotic Surgery
As robotic-assisted surgery expands across U.S. hospitals, teams increasingly seek energy instruments with the familiarity and performance of tools used in open and laparoscopic procedures.... Read more
Robotic Single-Port System Gains CE Mark for Transvaginal Gynecologic Procedures
Intuitive (Sunnyvale, CA, USA) announced that it has received CE mark approval for use of the da Vinci SP Single Port surgical system in transvaginal gynecologic procedures, marking the first such indication... Read more







