Patient controlled atrial shock therapy
First Claim
1. A patient controllable atrial shock therapy system, comprising:
- an implantable atrial shock therapy device including;
an atrial arrhythmia detector for detecting an atrial arrhythmia event episode and for providing an atrial arrhythmia event status;
an atrial cardioverter for providing atrial shock therapy;
patient activation request detection means for detecting a patient activation request originating from external to the implantable device, wherein the patient activation request detection means includes a reed switch responsive to a magnetic field to operate the reed switch to provide the patient activation request;
message generator means for generating a message indicating the atrial arrhythmia event status responsive to the detection of the patient activation request; and
shock therapy control means for requesting and withholding the providing of atrial shock therapy in response to a duration of the detected patient activation request, wherein the shock therapy control means requests shock therapy in response to operation of the reed switch by the magnetic field for greater than a selected duration and withholds shock therapy in response to operation of the reed switch by the magnetic field for less than the selected duration.
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Accused Products
Abstract
An implanted cardiac device detects an atrial arrhythmia and provides periodically updated atrial arrhythmia status as long as the arrhythmia is ongoing. A patient may request an indication of ongoing atrial arrhythmia status from external to the patient using a patient activator. The patient activator may include a magnet for closing a reed switch in the implanted device to provide the request or may provide the request over a telemetry link to the implanted device. The implanted device may provide the requested atrial arrhythmia status and other information in the form of an audible tone produced by the implanted device or as a message telemetered from the implanted device to the patient activator. The patient activator may include a tone detector and display for providing a visual indication of the atrial arrhythmia status indication. The magnet activator may also be employed to request or withhold atrial shock therapy.
24 Citations
31 Claims
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1. A patient controllable atrial shock therapy system, comprising:
an implantable atrial shock therapy device including; an atrial arrhythmia detector for detecting an atrial arrhythmia event episode and for providing an atrial arrhythmia event status; an atrial cardioverter for providing atrial shock therapy; patient activation request detection means for detecting a patient activation request originating from external to the implantable device, wherein the patient activation request detection means includes a reed switch responsive to a magnetic field to operate the reed switch to provide the patient activation request; message generator means for generating a message indicating the atrial arrhythmia event status responsive to the detection of the patient activation request; and shock therapy control means for requesting and withholding the providing of atrial shock therapy in response to a duration of the detected patient activation request, wherein the shock therapy control means requests shock therapy in response to operation of the reed switch by the magnetic field for greater than a selected duration and withholds shock therapy in response to operation of the reed switch by the magnetic field for less than the selected duration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A patient controllable atrial shock therapy system, comprising:
an implantable atrial shock therapy device including; an atrial arrhythmia detector for detecting an atrial arrhythmia event episode and for providing an atrial arrhythmia event status; an atrial cardioverter for providing atrial shock therapy; patient activation request detection means for detecting a patient activation request originating from external to the implantable device; message generator means for generating an audible tone indicating the arrhythmia event status responsive to the detection of the patient activation request; and shock therapy control means for requesting and withholding the providing of atrial shock therapy in response to a duration of the detected patient activation request. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A patient controllable atrial shock therapy system, comprising:
an implantable atrial shock therapy device including; an atrial arrhythmia detector for detecting an atrial arrhythmia event episode and for providing an atrial arrhythmia event status; an atrial cardioverter for providing atrial shock therapy; patient activation request detection means for detecting a patient activation request originating from external to the implantable device, wherein the patient activation request detection means includes a reed switch responsive to a magnetic field to operate the reed switch to provide the patient activation request; message generator means for generating a message indicating the atrial arrhythmia event status responsive to the detection of the patient activation request, wherein the message generator means includes means for generating an audible tone indicating the arrhythmia event status; and shock therapy control means for requesting and withholding the providing of atrial shock therapy in response to a duration of the detected patient activation request, wherein the shock therapy control means requests and withholds shock therapy in response to a duration of operation of the reed switch by the magnetic field; and
a hand-held activator including;a magnet for generating the magnetic field to operate the reed switch when the activator is positioned near the implantable device; tone detector means for receiving the audible tone indicating the arrhythmia event status and converting the audible tone indicating the arrhythmia event status into an electrical signal indicating the arrhythmia event status; and display means responsive to the electrical signal indicating the arrhythmia event status for displaying on the activator a visual indication of the arrhythmia event status. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
Specification