Compact apparatus and methods for non-invasively measuring hemodynamic parameters

摘要

Improved apparatus and methods for non-invasively assessing one or more hemodynamic parameters associated with the circulatory system of a living organism. In one aspect, the invention comprises spatially compact “bracelet” embodiment adapted to accurately place and maintain a sensor (e.g., tonometric pressure sensor) with respect to the anatomy of the subject, including an optional alignment apparatus which moveably captures the sensor to, inter alia, facilitate coupling thereof to an actuator used to position the sensor during measurements. The alignment apparatus also advantageously allows the sensor position to be maintained when the fixture is removed from the subject, such as during patient transport. A completely autonomous variant of the bracelet apparatus having internal power supply and wireless interfaces is also disclosed. Methods for positioning the alignment apparatus and sensor and providing treatment to the subject are also described.

主权项

1. Non-invasive hemodynamic monitoring apparatus comprising:
a bracelet-like structure configured to receive a patient's wrist said bracelet-like structure comprising:
a first portion configured to interface with an inner portion of said patient's wrist, said first portion comprising a first actuator assembly at least partially enclosed within a housing said first actuator assembly configured to couple to at least one sensor and position said at least one sensor according to at least one of a sagittal displacement and a lateral displacement;a second portion configured to interface with an exterior portion of said patient's wrist; anda third portion pivotally coupled to said first and second portions, said third portion further comprising a second actuator assembly configured to allow selective control of a motion of said first and second portions according to a static compression of said bracelet-like structure on said patient's wrist; and signal processing apparatus in communication with said at least one sensor, said signal processing apparatus configured to generate scaled hemodynamic signals based on data obtained from said patient via said at least one sensor.