Apparatus and method for detecting lung sounds using an implanted device
First Claim
Patent Images
1. A system, comprising:
- an implantable housing comprising;
a sensor adapted for ambulatory operation in a patient and adapted to be positioned adjacent to a pulmonary system of the patient, the sensor adapted to output signals indicative of lung sounds; and
an input/output interface;
filtering circuitry adapted to filter the sensor output signals by removing signal content unrelated to adventitious lung sounds;
detection circuitry adapted to receive filtered sensor output signals from the filtering circuitry, the detection circuitry further adapted to detect presence of adventitious lung sounds based on a comparison between the filtered sensor output signals and a criteria indicative of adventitious lung sounds;
a processor coupled to memory and adapted to record data associated with the adventitious lung sounds; and
an external system comprising an input/output interface and adapted to communicatively couple with the input/output interface of the implantable housing.
0 Assignments
0 Petitions
Accused Products
Abstract
Adventitious lung sounds indicative of lung congestion are detected using an implantable sensor. The sensor is adapted to be positioned adjacent to a pulmonary system and to output signals indicative of lung sounds in response to pulmonary system activity. A controller receives the signals and processes the signals to detect the presence of adventitious lung sounds. A respiratory cycle sensor operating in conjunction with the lung-sound sensor enables classification of an adventitious lung sound according to its time occurrence within the respiratory cycle. Posture sensing in conjunction with lung-sound sensing provides valuable additional information as to the severity of the lung congestion.
111 Citations
20 Claims
-
1. A system, comprising:
-
an implantable housing comprising; a sensor adapted for ambulatory operation in a patient and adapted to be positioned adjacent to a pulmonary system of the patient, the sensor adapted to output signals indicative of lung sounds; and an input/output interface; filtering circuitry adapted to filter the sensor output signals by removing signal content unrelated to adventitious lung sounds; detection circuitry adapted to receive filtered sensor output signals from the filtering circuitry, the detection circuitry further adapted to detect presence of adventitious lung sounds based on a comparison between the filtered sensor output signals and a criteria indicative of adventitious lung sounds; a processor coupled to memory and adapted to record data associated with the adventitious lung sounds; and an external system comprising an input/output interface and adapted to communicatively couple with the input/output interface of the implantable housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system, comprising:
-
an implantable housing comprising; a lung-sound sensor adapted for ambulatory operation in a patient and adapted to be positioned adjacent to a pulmonary system of the patient, the lung-sound sensor adapted to output signals indicative of lung sounds; and an input/output interface; a respiration sensor adapted to output signals indicative of a respiratory cycle of the patient'"'"'s pulmonary system; detection circuitry adapted to receive the output signals of the lung-sound sensor and the respiration sensor, respectively, the detection circuitry further adapted to monitor for adventitious lung sounds only during a predetermined portion of the respiratory cycle and to generate detection data in response to detecting adventitious lung sounds during the predetermined respiratory cycle portion; a processor coupled to memory and adapted to record the detection data; and an external system comprising an input/output interface and adapted to communicatively couple with the input/output interface of the implantable housing. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
-
Specification