| CPC A61N 1/37512 (2017.08) [A61N 1/362 (2013.01); A61N 1/37205 (2013.01); A61N 1/37518 (2017.08); A61N 1/3756 (2013.01)] | 20 Claims | 

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               1. A trailing component of a leadless pacemaker for use with a leading component of the leadless pacemaker, the trailing component comprising a first connecting member and a second connecting member, 
            wherein the first connecting member is configured to be detachably connected to the leading component and the second connecting member is configured to be non-detachably or detachably connected to the leading component, thereby achieving interlocking between the trailing component and the leading component, and wherein the first connecting member is non-biodegradable and the second connecting member is biodegradable, or the second connecting member is fitted and connectable to the leading component by an associated biodegradable connecting member. 
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