We introduce a novel platform for medical device training: hybrid physical-virtual simulators of medical devices, combining touchscreen-enabled virtual emulations of real devices with sensorized physical peripherals to enable tactile, hands-on interaction between the trainee, simulated device and standardized patients or mannequins. The system enables objective measurement and recording of trainee performance, including interactions with both the virtual device elements and the physical components, and can include metrics and feedback not available in the real device. The system also includes an integrated wireless signaling device for use with standardized patients.
View Article and Find Full Text PDFAugmented reality offers the potential to radically extend and enhance the capabilities of physical medical simulators such as full-body mannequin trainers. We have developed a system that transforms the surface of a mannequin simulator into both a display screen and an input device. The BodyWindows system enables a user to open, size, and reposition multiple viewports onto the simulator body.
View Article and Find Full Text PDFWe have enhanced a common medical device, the chest tube drainage container, with electronic sensing of fluid volume, automated detection of critical alarm conditions and the ability to automatically send alert text messages to a nurse's cell phone. The PleurAlert system provides a simple touch-screen interface and can graphically display chest tube output over time. Our design augments a device whose basic function dates back 50 years by adding technology to automate and optimize a monitoring process that can be time consuming and inconvenient for nurses.
View Article and Find Full Text PDFWe are developing a simulator of peripheral nerve block utilizing a mixed-reality approach: the combination of a physical model, an MRI-derived virtual model, mechatronics and spatial tracking. Our design uses tangible (physical) interfaces to simulate surface anatomy, haptic feedback during needle insertion, mechatronic display of muscle twitch corresponding to the specific nerve stimulated, and visual and haptic feedback for the injection syringe. The twitch response is calculated incorporating the sensed output of a real neurostimulator.
View Article and Find Full Text PDFWe have developed a prototype of a real-time, interactive projective overlay (IPO) system that creates augmented reality display of a medical procedure directly on the surface of a full-body mannequin human simulator. These images approximate the appearance of both anatomic structures and instrument activity occurring within the body. The key innovation of the current work is sensing the position and motion of an actual device (such as an endotracheal tube) inserted into the mannequin and using the sensed position to control projected video images portraying the internal appearance of the same devices and relevant anatomic structures.
View Article and Find Full Text PDFBackground: Brainstem glioma carries the worst prognosis of all malignancies of the brain. Most patients with brainstem glioma fail standard radiation therapy and chemotherapy and do not survive longer than 2 years. Treatment is even more challenging when an inoperable tumor is of high-grade pathology (HBSG).
View Article and Find Full Text PDFPrimitive neuroectodermal tumors (PNETs) are usually successfully treated with craniospinal radiation and chemotherapy; however, difficulties with standard treatment can be encountered in very young children, in adult patients at high risk of complication from standard treatment, and in patients with recurrent tumors. Thirteen children, either with recurrent disease or high risk, were treated in phase II studies with antineoplastons (ANP). The median age of patients was 5 years, 7 months (range, 1-11).
View Article and Find Full Text PDFObjective: To evaluate the response rates, survival and toxicity of treatment with antineoplaston A10 and AS2-1 (ANP) in the first 12 children enrolled in our studies diagnosed with incurable recurrent and progressive multicentric glioma.
Patients And Methods: The patients' median age was 9 years. Six patients were diagnosed with pilocytic astrocytoma, four with low-grade astrocytoma and one with astrocytoma grade 2.
Objective: A phase II study of antineoplaston A10 and AS2-1 was conducted to evaluate the antineoplastic activity in patients with recurrent diffuse intrinsic brain stem glioma.
Patients And Methods: This report describes the results of treatment of the first 12 patients admitted to the study. Patients received escalating doses of antineoplaston A10 and AS2-1 by intravenous bolus injections.