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CGH and SUTD have developed a lightweight monitoring device for detecting real-time bleeding from wounds

Changi General Hospital (CGH) and Singapore University of Technology and Design (SUTD) have developed a blood warning technology with a continuous hemoglobin (BWATCH) sensor, a lightweight surveillance device placed over a patient’s bandage. Invasive medical procedure.

BWATCH was tested and validated in an observational clinical trial of 250 patients with CGH with or without a dialysis catheter. The device was firmly placed on the dressing for at least 6 hours. During the study, 36 bleeding episodes occurred and the sensor detected all instances of early bleeding. Blood loss detected in bleeding episodes was minimal and the bandages were only partially stained.

When the alarm was triggered, the nursing staff was warned of bleeding and took the necessary steps to prevent the spread of bleeding. The results of the clinical trials are published in Scientific Reports, a device for monitoring vascular access sites for bleeding: Results of clinical trials by Chionh, CY, Soh, DY, Tan, CH et al.

CGH and SUTD have patented BWATCH in Singapore and the United States (US) and plan to commercialize with suitable industry partners in the future. BWATCH is the first joint patent of CGH and SUTD under a partnership to develop innovative patient care solutions that address evolving healthcare challenges.

Improving patient safety with continuous real-time monitoring

In developed countries like Singapore, the incidence of acute dialysis is estimated to be 200-300 per million people each year. Patients on acute dialysis suffer from acute illness and can lead to sudden deterioration of kidney function, including the inability of the kidneys to sustain life. When this happens, the patient needs hemodialysis, a life-saving therapy to filter waste products from the blood.

BWATCH has been developed with hemodialysis patients in mind to meet clinical needs due to the risk of bleeding after inserting a catheter during a vascular access procedure. The wound area of ​​these patients is usually heavily bandaged and covered with a blanket when resting. To ensure that the patient is fully recovered, the care team will perform regular tests as many as four times an hour to check for possible bleeding.

BWATCH’s ability to detect bleeding early, designed to complement patient care and increase patient safety, reduces the risk of potential major bleeding. The device is also useful in caring for patients who are incapacitated and unable to seek help. Widespread use of this device gives you more trust, reducing the frequency of inspections and resource requirements without compromising safety.

“Massive bleeding after medical procedure is rare but can be life-threatening if it occurs. Short-term monitoring is very labor-intensive but necessary. However, despite close monitoring, these Bleeding can occur during the examination, allowing the care team to focus on other patient-centric tasks, “said Associate Professor Chionh Chang Yin, Chief and Senior Consultant of CGH’s Department of Renal Medicine. ..

Detect blood using light absorption properties

Unlike other blood detectors, BWATCH’s basic detection principle is based on the light absorption properties of hemoglobin. The innovation also includes a moisture sensor that does not require direct contact with the liquid. These two properties allow the device to distinguish blood from other types of fluids such as sweat and urine, accurately detect bleeding episodes and trigger alarms without direct contact with the patient or the patient’s fluids. I can do it. (See Appendix for more information.) “There are other commercial systems and products available for fluid detection, but they are due to changes in physical properties such as electrical resistance, capacitance, or opacity to light. Only the presence of fluid can be detected. Neither detection method was specific to blood, making BWATCH an accurate non-invasive sterilization monitoring device for early detection of bleeding, “SUTD Engineering said. Associate Professor Foong Shaohui of the Product Development Department said.

Potential future applications

In addition to hemodialysis patients, BWATCH can be applied to other patient types in the hospital. It can be used in other wound types or locations that are prone to external bleeding, for example in cardiac catheterization. Cardiac catheterization is a procedure used to diagnose and treat certain cardiovascular diseases. During the procedure, a catheter is inserted into an artery and passed through a blood vessel that connects to the heart. The wound area is the area where bleeding is possible. The device can also be tested in other clinical situations beyond hospital settings, such as on-site monitoring of traumatic wounds. The shape of the device should be adapted to different wound types.

In addition, it may be integrated into the hospital system, such as linking the device directly to the nurse’s calling system. “Introducing BWATCH to the market offers a lot of potential for early detection of bleeding,” said A / Prof Chionh.

CGH and SUTD have developed a lightweight monitoring device for detecting real-time bleeding from wounds

Source link CGH and SUTD have developed a lightweight monitoring device for detecting real-time bleeding from wounds

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