Leadless pacemaker and tail end component and head end component thereof

Abstract

A leadless pacemaker () and trailing () and leading () components thereof are disclosed. The trailing component () includes a first connecting member () and a second connecting member (), and the leading component () includes a third connecting member () and a fourth connecting member (). The first connecting member () is configured to be detachably connected to the third connecting member () and the second connecting member () is configured to be detachably or non-detachably connected to the fourth connecting member (), thereby achieving interlocking between the trailing component () and the leading component (). Additionally, both the first connecting member () and the third connecting member () are non-biodegradable. At least one of the second connecting member () and the fourth connecting member () is biodegradable, or the second connecting member () is fitted and connected to the fourth connecting member () by an associated biodegradable connecting member. Thus, before the connecting member is degraded, it can be ensured that the trailing component () and the leading component () are firmly connected together by the four connecting members, facilitating overall retrieval or adjustment of the pacemaker (). Moreover, after the connecting member is degraded, the trailing component () can be easily retrieved.