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Subcutaneous implantable medical device and a method of processing signals of a subcutaneous implantable medical device

A medical device and implantable technology, applied in electrotherapy, subcutaneous electrodes, treatment, etc., can solve problems such as patient pain, inappropriate electric shock, and harm

Pending Publication Date: 2021-01-05
SORIN CRM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in implantable automatic defibrillators, erroneous interpretation of acquired signals can cause inappropriate shocks, which can be painful or even harmful to the patient

Method used

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  • Subcutaneous implantable medical device and a method of processing signals of a subcutaneous implantable medical device
  • Subcutaneous implantable medical device and a method of processing signals of a subcutaneous implantable medical device
  • Subcutaneous implantable medical device and a method of processing signals of a subcutaneous implantable medical device

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Embodiment Construction

[0052] The invention is described in more detail below by using advantageous embodiments and implementations as examples and with reference to the accompanying drawings. The described embodiments and implementations are only possible configurations, and it should be borne in mind that individual features as described above may be provided independently of each other or omitted entirely when implementing the invention.

[0053] figure 1 A subcutaneously implantable medical device 10 of the subcutaneous defibrillator type 10 is shown. figure 2 The subcutaneously implantable device 10 is shown in an implanted state.

[0054] The subcutaneous defibrillator 10 includes a housing 12 that generates pulses and to which a subcutaneously implantable pin 14 is connected.

[0055] The implantable pin 14 is at least partially flexible and has two ends 16 and 18 : a proximal end 16 connected to the housing 12 and a free distal end 18 .

[0056] exist figure 2 and 3 In the embodiment ...

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Abstract

The invention relates to a subcutaneous implantable active medical device, in particular a subcutaneous cardiac defibrillator. The subcutaneous implantable active medical device comprises a housing (12) and a subcutaneous implantable lead (14) connected to the housing (12). The subcutaneous implantable lead (14) comprises a plurality of sensing electrodes (20, 22, 24) forming at least two dipoles(D1, D2) from which at least two electrical signals are collected concurrently. The first dipole (D1) has a first length less than a second length of the second dipole (D2). The subcutaneous implantable active medical device (10) further comprises a controller (28) configured to determine whether or not tachyarrhythmia is present by determining a criterion of similarity based on the electrical signals collected concurrently via the first dipole (D1) and via the second dipole (D2) during a defined series of cardiac cycles that is such that detection of a depolarization peak, corresponding to detection of an R wave, is performed via the first dipole (D1).

Description

technical field [0001] The present invention relates to a method of processing signals of a subcutaneously implantable cardiac device, and to such a subcutaneously implantable cardiac device, in particular a subcutaneously implantable defibrillator. Background technique [0002] A conventional (i.e. intravenous) implantable automatic defibrillator (also known as an "implantable cardioverter defibrillator" or "ICD") consists of a defibrillation pulse generator and a microprocessor monitoring and control unit that Contained in a metal shell that is usually implanted in the breast pocket. The housing is connected to one or more pins that are inserted into the subclavian vein until they reach the heart. Inside the heart, the ends of the leads are attached to the inner walls of the heart chambers, where they record an electrogram (EGM) that reflects the electrophysiological function of the heart. On the basis of EGM, therapy in the form of defibrillation (defibrillation shock) ...

Claims

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Application Information

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IPC IPC(8): A61N1/39A61B5/283A61B5/29A61B5/318A61B5/352A61B5/366A61B5/363A61B5/353A61B5/355A61B5/349
CPCA61N1/3925A61N1/395A61N1/3968A61B5/7221A61B5/7282A61N1/3956A61N1/0504A61B5/30A61B5/283A61B5/363A61B5/352A61N1/3943
Inventor T·勒盖R·科德罗阿尔瓦雷斯D·福伊尔斯坦恩
Owner SORIN CRM
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