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Assignees
Member
Hamilton Medical Inc.Hamilton Medical is focused on the development, manufacturing, and training for advanced respiratory support technologies. The company provides intelligent ventilation systems, high flow oxygen therapy, noninvasive ventilation, and educational platforms for healthcare professionals. Their offerings emphasize patient safety, data-driven decision making, and regulatory compliance across intensive care, transport, neonatal, and emergency settings.
Hamilton Medical is focused on the development, manufacturing, and training for advanced respiratory support technologies. The company provides intelligent ventilation systems, high flow oxygen therapy, noninvasive ventilation, and educational platforms for healthcare professionals. Their offerings emphasize patient safety, data-driven decision making, and regulatory compliance across intensive care, transport, neonatal, and emergency settings.
Publication Number
US-11992614-B2
Publication Date
2024-05-28
Expiration Date
Abstract
A control system of a respiratory device for the at least supportive-partial artificial respiration of patients, in particular human patients, comprising a respiratory gas conduit arrangement, a pressure changing arrangement for changing the pressure of respiratory gas in the respiratory gas conduit arrangement during the respiratory operation of the respiratory device, and the control system for controlling the respiratory operation of the respiratory device. The control system has a data input for transmitting operational or/and patient data to the control system. The control system is configured to determine a respiratory operating parameter for the operation of the respiratory device selectively by means of a predetermined first data relationship or by means of a predetermined second data relationship that is different from the first data relationship.
Core Innovation
A supportive-partial artificial respiration control system is provided with a pressure-changing respiratory gas conduit assembly and a controller having a data input. The controller receives operational data and/or patient data and selects between a first and a second predetermined data relationship. Based on the selected data relationship and a resistance data value, the controller determines a respiratory operating parameter for a predetermined respiratory gas volume per minute.
The resistance data value represents patient/respiratory-path resistance and, in certain explanations, may be derived from flow resistance and flexibility, where flexibility is treated as compliance. The document also describes use of a respiration time constant as a product of resistance and compliance. The controller updates the determined respiratory operating parameter repeatedly using sensor data associated with respiratory cycles.
In embodiments and examples, the first and second predetermined data relationships are exemplified by Otis and Mead relationships that yield different base operating parameters, such as respiration frequency for a given predetermined respiratory gas volume per minute. The document describes comparing corresponding base operating parameters and applying selection logic using a threshold, including an intersection point at which arithmetic averaging of frequencies is used instead of choosing one relationship. Figures illustrate the selection logic across different gas requirements (percent volume per minute).
Claims Coverage
Not explicitly described in patent.
Not explicitly described in patent.
Stated Advantages
Documented Applications
Supportive-partial artificial respiration control using a pressure-changing respiratory gas conduit and controller-based selection between predetermined data relationships (Otis and Mead) based on a resistance data value to determine tidal volume or respiration frequency for a predetermined respiratory gas volume per minute.
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