Mark Grubb

Title: Mark Grubb: Innovator in Photoplethysmography

Introduction

Mark Grubb is a notable inventor based in Nottingham, GB. He has made significant contributions to the field of photoplethysmography, with a focus on developing devices that enhance the measurement of blood volume and composition.

Latest Patents

Mark Grubb holds 2 patents related to his innovative work. His latest patent describes a photoplethysmograph device that includes a light source for illuminating a target object. A modulator drives the light source, allowing the output intensity to vary based on a modulation signal at a modulation frequency. A detector receives light from the target object and generates an electrical output based on the intensity of the received light. A demodulator with a local oscillator processes the detector output, producing a demodulated output that is insensitive to any phase difference between the modulation signal and the oscillator. This output is indicative of blood volume as a function of time and/or blood composition. The device can operate in both transmission and reflectance modes, utilizing the green part of the optical spectrum and polarizing filters when in reflectance mode.

Career Highlights

Mark Grubb is affiliated with the University of Nottingham, where he continues to advance his research and development in photoplethysmography. His work has the potential to significantly impact medical diagnostics and monitoring.

Collaborations

Mark collaborates with esteemed colleagues such as John Andrew Crowe and Barrie Robert Hayes-Gill, contributing to a rich environment of innovation and research.

Conclusion

Mark Grubb's contributions to photoplethysmography exemplify the intersection of technology and healthcare. His innovative devices are paving the way for advancements in medical monitoring and diagnostics.