Roger Joseph Hajjar

Title: Innovations of Roger Joseph Hajjar

Introduction

Roger Joseph Hajjar is a notable inventor based in Tenafly, NJ (US). He holds a total of seven patents, showcasing his significant contributions to the field of medical technology. His work primarily focuses on advancements in cardiac care and therapeutic devices.

Latest Patents

One of Hajjar's latest patents is the "Thermistor imbedded therapeutic catheter." This innovative system and method allow for the determination of native cardiac output while maintaining the operation of an intracardiac blood pump. The system involves measuring the current drawn by the pump motor, blood pressure within the ascending aorta, and changes in blood temperature using a thermodilution technique. The intracardiac blood pump is equipped with sensors to monitor motor current and blood pressure, along with a thermistor to assess temperature changes after a precise fluid bolus is introduced into the vasculature. A processor then calculates pump flow output and total cardiac output, which informs clinical decisions regarding therapeutic care.

Another significant patent is related to "Systems and methods for left ventricular unloading in biologic therapy or vectored gene therapy." This method utilizes mechanical circulatory support in conjunction with biologic therapy, such as a gene therapy vector. The process involves occluding a blood vessel, followed by the injection of a gene therapy vector distal to the occlusion site, while the mechanical circulatory support system provides necessary circulatory assistance to the patient.

Career Highlights

Hajjar has worked with prestigious institutions, including the Icahn School of Medicine at Mount Sinai and Abiomed, Inc. His experience in these organizations has contributed to his expertise in developing innovative medical devices and therapies.

Collaborations

Throughout his career, Hajjar has collaborated with notable professionals, including Jerald Wayne Curran and Kiyotake Ishikawa. These collaborations have further enhanced his research and development efforts in the medical field.

Conclusion

Roger Joseph Hajjar's contributions to medical technology, particularly in cardiac care, are significant. His innovative patents and collaborations reflect his dedication to improving therapeutic methods and patient outcomes. His work continues to influence advancements in the medical industry.