CN-116209386-B - Vibration suppressing apparatus

Abstract

A system and method for reducing vibrations perceived by a person due to a prosthetic heart valve includes a vest wearable about a torso of the person, a plurality of sensors mounted to the vest, a plurality of vibration-generating actuators mounted to the vest, and a controller. The plurality of sensors detects vibrations generated by the prosthetic heart valve within the human body. The controller is operable to receive signals from the plurality of sensors representative of the detected vibrations and is operable to generate anti-vibration signals that substantially attenuate the detected vibrations. A first sensor of the plurality of sensors is positioned proximate to a first vibration generating actuator of the plurality of vibration generating actuators to form a sensor/actuator set. In the sensor/actuator group, the vibration-resistant signal generated by the controller for the first vibration-generating actuator corresponds to the vibration detected by the first sensor.

Inventors

• Abraham A. Dohajil
• Abraham Alexander Dohajil
• Daniel P. Douglas Hagill
• Michael Krasco

Assignees

• 凯奈提卡股份有限公司

Dates

Publication Date

20260505

Application Date

20210922

Priority Date

20200928

Claims (13)

1. 1. A system for reducing human perceived vibrations due to a prosthetic heart valve, the system comprising: a vest, the vest being wearable around a torso of the person; A plurality of sensors mounted to the vest, wherein the plurality of sensors detect vibrations generated by the prosthetic heart valve; A plurality of vibration generating actuators mounted to the vest, and A controller operable to receive signals of the detected vibrations from the plurality of sensors, and wherein the controller is operable to generate anti-vibration signals that reduce the detected vibrations; wherein a first sensor of the plurality of sensors is positioned proximate to a first vibration generating actuator of the plurality of vibration generating actuators to form a sensor/actuator set; Wherein in the sensor/actuator group, the anti-vibration signal generated by the controller for the first vibration generating actuator corresponds to the vibration detected by the first sensor, and Wherein the controller has an algorithm that predicts future vibrations from the prosthetic heart valve in response to detected vibrations from the plurality of sensors, and wherein the controller generates the anti-vibration signal for the plurality of vibration generating actuators based on the predictions.
2. 2. The system of claim 1, wherein: The plurality of sensors continuously detecting the vibrations, and The controller monitors and adaptively adjusts the algorithm based on the vibrations detected by the plurality of sensors.
3. 3. The system of claim 1, wherein: The algorithm includes parameters initially set according to a calibration phase, and The parameter comprises a measurement of heart rate, blood pressure or patient body structure.
4. 4. The system of claim 3, wherein the patient body structure comprises fat percentage, bone structure, and bone density.
5. 5. The system of claim 3, wherein the plurality of sensors are mounted in a position on the dorsal heart based on the measurements from the calibration phase.
6. 6. The system of claim 1, further comprising a user interface device in communication with the controller.
7. 7. The system of claim 1, wherein the plurality of sensors comprises an accelerometer or a microphone.
8. 8. The system of claim 1, wherein the plurality of vibration generating actuators comprises haptic actuators.
9. 9. The system of claim 1, wherein the plurality of vibration generating actuators comprises speakers in a feed-forward topology.
10. 10. The system of claim 1, wherein the plurality of sensors includes an acoustic sensor and a tactile vibration sensor.
11. 11. The system of claim 1, wherein the plurality of sensors and the plurality of vibration generating actuators are releasably mounted to the vest such that positions of the plurality of sensors and the plurality of vibration generating actuators can be adjusted.
12. 12. The system of claim 1, wherein the plurality of sensors comprises feed-forward microphones.
13. 13. The system of claim 1, wherein the plurality of vibration generating actuators comprises non-haptic actuators.

Description

Vibration suppressing apparatus RELATED APPLICATIONS The present application claims priority from U.S. provisional application No. 63/084,559, filed on 9/28 of 2020 and entitled "Vibration Suppression Apparatus," which is hereby incorporated by reference in its entirety. Background Artificial internal devices within and/or around the heart, such as prosthetic heart valves, produce vibrations that propagate through the internal bone structures, tissues, etc. of the body. Valve flutter (opening and closing) transmits vibrations through the body and as these vibration waves propagate, they are felt by the patient. The amplitude of these vibrations may be large enough that many patients suffer from sleep deprivation and other conditions due to these vibrations. Under different body postures, the vibration can be uncomfortable, making the patient unable to fall asleep at night. Studies of the impact of heart valve vibrations on the quality of life (QOL) of patients have shown that heart valve recipients may experience severe sleep disorders, which in turn may lead to further health problems such as chronic stress. Some solutions to these sleep problems aim at improving the design of mechanical heart valves. Other solutions involve therapies for patients, including pharmaceutical interventions (such as administration of sedatives), or non-pharmaceutical interventions (such as cognitive behavioral therapies and wearing noise reduction earplugs). However, the impact of mechanical heart vibrations on the quality of life of patients remains a significant continuing problem. Disclosure of Invention In an embodiment, a system for reducing vibrations perceived by a person due to a prosthetic heart valve includes a vest wearable about a torso of the person, a plurality of sensors mounted to the vest, a plurality of vibration-generating actuators mounted to the vest, and a controller. A plurality of sensors detect vibrations generated by the prosthetic heart valve in the human body. The controller is operable to receive signals from the plurality of sensors representative of the detected vibrations and is operable to generate anti-vibration signals that reduce the detected vibrations. A first sensor of the plurality of sensors is positioned proximate to a first vibration generating actuator of the plurality of vibration generating actuators to form a sensor/actuator set. In the sensor/actuator group, the anti-vibration signal generated by the controller for the first vibration generating actuator corresponds to the vibration detected by the first sensor. In embodiments, one device for reducing vibration perceived by a person due to a prosthetic heart valve is a vest that can be worn around the torso of a person. A plurality of sensors are mounted to the vest, wherein the plurality of sensors detect vibrations generated by the prosthetic heart valve within the human body. A plurality of vibration generating actuators are mounted to the vest. A first sensor of the plurality of sensors is positioned proximate to a first vibration generating actuator of the plurality of vibration generating actuators to form a sensor/actuator set. In some embodiments, a method for reducing vibration perceived by a person due to a prosthetic heart valve involves providing a setup vest that can be worn around the torso of a person. The setup vest has a first plurality of sensors and a first plurality of vibration-generating actuators repositionable on the setup vest. A calibration session is conducted to customize placement of the first plurality of sensors and the first plurality of vibration generating actuators on the set-up back. Providing a vest to the person, the vest having a second plurality of sensors and a second plurality of vibration-generating actuators mounted to the vest in accordance with placement from a calibration session. At least one sensor of the second plurality of sensors is positioned proximate to at least one vibration generating actuator of the second plurality of vibration generating actuators to form a sensor/actuator set. Drawings Fig. 1 is an example of a phonocardiogram as known in the art. Fig. 2 is a cross-sectional schematic side view of a human chest having a vibration suppression device according to some embodiments. Fig. 3A illustrates an isometric view of a vibration suppression device according to some embodiments. Fig. 3B illustrates an isometric view of another vibration suppression device according to some embodiments. Fig. 4A is an illustration of a vibration suppression device according to some embodiments. Fig. 4B is an illustration of a setup vest according to some embodiments. Fig. 5 is a schematic diagram of a vibration suppression system on a human body according to some embodiments. Fig. 6 is a block diagram of electronic components of a vibration suppression system according to some embodiments. Fig. 7 illustrates a vibration canceling waveform according to some embodiments. Fig. 8 is a block