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CN-122003274-A - Medical device communication for controlling adjustment of control parameters by a medical device

CN122003274ACN 122003274 ACN122003274 ACN 122003274ACN-122003274-A

Abstract

A medical device system includes a first medical device having circuitry configured to perform a function in accordance with a control parameter and control circuitry configured to determine to adjust the control parameter. The first medical device includes a communication circuit configured to receive a communication signal from a second medical device of the medical device system. The control circuitry of the first medical device may inhibit adjustment of the control parameter or adjust the control parameter for performing a function in accordance with the adjusted control parameter based on the received communication signal.

Inventors

  • E.A. shilling
  • K. J. Katin
  • WILLIAMS ERIC R.
  • Y. Greenberg

Assignees

  • 美敦力公司

Dates

Publication Date
20260508
Application Date
20240923
Priority Date
20231013

Claims (15)

  1. 1. A medical device system comprising a first medical device, wherein the first medical device comprises: A first circuit configured to perform a first function according to at least a first control parameter, the first function performed by the first medical device of the medical device system independent of a second medical device of the medical device system; A first communication circuit configured to communicate with the second medical device, and The first control circuit is configured to control the first control circuit, the first control circuit is configured to: Determining to adjust the first control parameter; Receiving a communication signal from the second medical device via the first communication circuit, and Based on the received communication signals, one of the following is performed: a) Suppressing said adjustment of said first control parameter, or B) The first control parameter is adjusted for performing the first function according to the adjusted first control parameter.
  2. 2. The medical device system of claim 1, wherein the first control circuit is further configured to: Determining, based on the received communication signal, whether a medical device system conflict is expected to occur when the first medical device performs the first function according to the adjusted first control parameter, and Based on the received communication signal, the adjusting of the first control parameter or one of the adjusting of the first control parameter is performed by: a) Suppressing the adjustment of the first control parameter when the medical device system conflict is expected to occur based on the determination, or B) The first control parameter is adjusted when the medical device system conflict is not expected to occur based on the determination.
  3. 3. The medical device system of any one of claims 1-2, further comprising: the first communication circuit further configured to transmit a request signal in response to the first control circuit determining to adjust the first control parameter, and The second medical device, the second medical device comprising: a second circuit configured to perform a second function performed by the second medical device independent of the first medical device; a second communication circuit configured to receive the request signal and transmit the communication signal in response to the request signal, and A second control circuit is provided for controlling the first control circuit, the second control circuit is configured to: Determining if a medical device system conflict is expected to occur while the second medical device performs the second function when the first medical device performs the first function according to the adjusted first control parameter, and Transmitting the communication signal via the second communication circuit, the communication signal being transmitted as one of: An approval signal sent in response to determining that the medical device system conflict is not expected to occur when the second medical device performs the second function and the first medical device performs the first function according to the adjusted first control parameter, and A disapproval signal, the disapproval signal being sent in response to determining that the medical device system conflict is expected to occur when the second medical device performs the second function and the first medical device performs the first function according to the adjusted first control parameter.
  4. 4. The medical device system of any one of claims 1-3, wherein the first control circuit of the first medical device is further configured to: Receiving the communication signal via the first communication circuit, the communication signal being one of an approval signal or a disapproval signal, and Based on the received communication signals, one of the following is performed: a) Suppressing the adjustment of the first control parameter by one of delaying or canceling the adjustment of the first control parameter in response to the second communication signal being a disapproved signal, or B) When the second communication signal is an approval signal, the first control parameter is adjusted for performing the first function according to the adjusted first control parameter.
  5. 5. The medical device system of any one of claims 3-4, wherein: The second circuit is further configured to perform the second function by executing a test protocol; The second control circuit of the second medical device is further configured to: When the request signal is received, determining that the test protocol is being executed, and The method further includes transmitting the communication signal as the disapproved signal including a request to delay the adjustment of the first control parameter.
  6. 6. The medical device system of any one of claims 3-5, wherein the second control circuit of the second medical device does not modify the second function in response to receiving the request signal.
  7. 7. The medical device system of any one of claims 3-5, wherein in response to receiving the request signal, the second control circuit is further configured to: modifying the second function performed by the second circuit by adjusting or disabling one of the second functions in response to determining that the medical device system conflict is expected to occur, and The second communication signal is transmitted via the second communication circuit, the second communication signal being the approval signal.
  8. 8. The medical device system of claim 7, wherein: The first control circuit is further configured to: Adjusting at least the first control parameter to perform a temporary operation in response to receiving the approval signal sent by the second communication signal, and Transmitting a completion signal to the second medical device via the first communication circuit upon completion of the temporary operation, and The second control circuit is further configured to resume the second function that is adjusted or disabled in response to receiving the completion signal via the second communication circuit.
  9. 9. The medical device system of any one of claims 1-8, wherein the first control circuit of the first medical device is further configured to: Controlling the first circuit to execute a test algorithm, the test algorithm producing a result, and Determining to adjust the first control parameter based on the result of the test algorithm.
  10. 10. The medical device system of any one of claims 1-9, wherein the first control circuit of the first medical device is further configured to: performing a test requiring a temporary adjustment of the first control parameter, and The first control parameter is determined to be adjusted by determining that the test is to be performed.
  11. 11. The medical device system of claim 10, wherein the first control circuit is further configured to determine to perform the test in response to at least one of: Receiving a programming command from an external medical device; Determining that a planned time for executing the test algorithm is reached, or A trigger event is detected.
  12. 12. The medical device of any one of claims 10-11, wherein the first control circuit is further configured to: Determining, based on a result of the test, that at least one control parameter of a plurality of control parameters of the first medical device, including the first control parameter, is to be adjusted from a current value to a new value for controlling the first function, and The at least one control parameter is adjusted to the new value.
  13. 13. The medical device system of claim 12, wherein the first control circuit is further configured to: Transmitting a second request signal via the first communication circuit; Receiving a reply signal from the second medical device in response to the second request signal, and In response to the answer signal, the at least one control parameter is adjusted to the new value.
  14. 14. The medical device system of any one of claims 10-13, wherein the first control circuit is further configured to perform the test by performing at least one of: Pacing capture testing; Measuring atrioventricular conduction; Ventricular synchronous measurement; Signal morphology analysis or And (5) impedance measurement.
  15. 15. The medical device system of any one of claims 1-14, wherein the first control circuit is further configured to adjust the first control parameter by adjusting at least one of: the electric stimulation pulse amplitude; electrical stimulation pulse width; A cardiac pacing interval; Cardiac pacing mode, or And (5) electrode vector configuration.

Description

Medical device communication for controlling adjustment of control parameters by a medical device The present application claims the benefit of U.S. provisional patent application serial No. 63/590,356 filed on 10/13 of 2023, the entire contents of which are incorporated herein by reference. Technical Field The present disclosure relates generally to medical devices, systems, and methods for performing inter-device communication to control automatic adjustment of medical device control parameter values. Background Various medical devices for delivering therapy and/or monitoring physiological conditions of a patient have been used clinically or proposed for clinical use in patients. Examples include Implantable Medical Devices (IMDs) that deliver therapy to and/or monitor conditions associated with the heart, muscle, nerve, brain, stomach, or other tissue. Some treatments include delivering electrical stimulation to such tissue. Some IMDs may employ electrodes to deliver therapeutic electrical signals to such organs or tissues, use the electrodes to sense physiological electrical signals inherent in the patient (which may be propagated from such organs or tissues), and/or use other sensors to sense physiological signals of the patient. For example, when ventricular tachyarrhythmia (e.g., tachycardia or fibrillation) is detected, an Implantable Cardioverter Defibrillator (ICD) may be used to deliver a high energy cardioversion or defibrillation (CV/DF) shock to the patient's heart. ICDs may detect tachyarrhythmia based on analysis of cardiac Electrograms (EGMs) or Electrocardiographs (ECGs) sensed via electrodes, and may deliver anti-tachyarrhythmia shocks, e.g., defibrillation shocks and/or cardioversion shocks, via the electrodes. As another example, an ICD or implantable cardiac pacemaker may provide cardiac pacing therapy to the heart when the heart's natural pacemaker and/or conduction system fails to provide synchronized atrial and ventricular contractions at a frequency and interval sufficient to maintain healthy patient function. ICDs and cardiac pacemakers may also provide overdrive cardiac pacing, known as anti-tachycardia pacing (ATP), to suppress or convert detected tachyarrhythmias in an effort to avoid cardioversion/defibrillation shocks. In some cases, two or more medical devices may be implanted in and/or worn by a single patient. Each of the two or more medical devices may be individually operable to perform a monitoring function and/or deliver therapy to a patient. Disclosure of Invention The technology of the present disclosure generally relates to techniques performed by a medical device system for automatically adjusting control parameters of a medical device such that conflicts between two medical device members of the medical device system operating within or on a patient are avoided. The first medical device of the medical device system may be configured to automatically adjust one or more control parameters for controlling a function performed by the first medical device. The first medical device may determine that control parameters used by circuitry of the first medical device to perform the function need to be adjusted. The first medical device may send a request signal to a second medical device of the medical device system prior to adjusting the control parameter. The second medical device may send a reply signal to the first medical device. In some examples, the second medical device may determine whether the control parameter adjustment is expected to cause a medical device system conflict between a function performed by the first medical device and a second function performed by the second medical device. The reply signal sent by the second medical device may be generated based on whether a medical device system collision is expected to occur. In various examples, the first medical device may adjust the control parameter, delay adjustment of the control parameter, or cancel adjustment of the control parameter based on the reply signal received from the second medical device. In one example, the present disclosure provides a medical device system including a first medical device having circuitry configured to perform a function performed by the first medical device of the medical device system independent of a second medical device of the medical device system according to at least one control parameter. The first medical device includes communication circuitry configured to communicate with the second medical device and control circuitry configured to determine to adjust the control parameter. The control circuit may be further configured to receive a communication signal from the second medical device via the communication circuit. The control circuit may be further configured to perform one of a) suppressing adjustment of the control parameter, b) adjusting the control parameter for performing a function in accordance with the adjusted control parameter, based on the receive