US 11,992,614 B2
Respiratory device
Lars Kühn, Grüsch (CH); Dominik Novotni, Chur (CH); and Thomas Laubscher, Rhäzüns (CH)
Assigned to HAMILTON MEDICAL AG, Bonaduz (CH)
Appl. No. 15/553,520
Filed by HAMILTON MEDICAL AG, Bonaduz (CH)
PCT Filed Feb. 15, 2016, PCT No. PCT/EP2016/053189
§ 371(c)(1), (2) Date Aug. 24, 2017,
PCT Pub. No. WO2016/134999, PCT Pub. Date Sep. 1, 2016.
Claims priority of application No. 10 2015 203 455.0 (DE), filed on Feb. 26, 2015.
Prior Publication US 2018/0221609 A1, Aug. 9, 2018
Int. Cl. A61M 16/00 (2006.01); G16H 40/63 (2018.01)
CPC A61M 16/026 (2017.08) [A61M 16/024 (2017.08); G16H 40/63 (2018.01); A61M 2016/0027 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/50 (2013.01); A61M 2230/46 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A respiratory device for the at least supportive-partial artificial respiration of patients, comprising:
a respiratory gas conduit assembly,
a pressure changing assembly for changing the pressure of respiratory gas in the respiratory gas conduit assembly during the respiratory operation of the respiratory device; and
a control device controlling the respiratory operation of the pressure changing assembly such that the patient is supplied with a predetermined respiratory gas volume per minute;
wherein the control device has a data input for transmitting operational and/or patient data to the control device;
wherein the control device is configured to determine a respiration tidal volume or a respiration frequency as a respiratory operating parameter for the operation of the pressure changing assembly selectively using a predetermined first data relationship or using a predetermined second data relationship that is different from the first data relationship;
wherein the control device is configured to select a data relationship from the predetermined first and the predetermined second data relationship depending on a resistance data value denoting a respiration resistance in connection with a patient to be ventilated, and thus to determine the respiratory operating parameter for the predetermined respiratory gas volume per minute according to the selected data relationship from the first data relationship and the second data relationship using at least one calculation step;
wherein the resistance data value takes into account at least one of (1) a flow resistance value of at least one of (a) the respiratory path of the patient to be ventilated and (b) the respiration gas conduit assembly, and (2) a flexibility value of at least one of (a) the respiration organs of the patient to be ventilated and (b) the respiration gas conduit assembly.