US 9,517,337 B2 · Intracardiac capsule implantable on a thin wall, including the septum wall

Abstract

An intracardiac capsule comprises a cylindrical body having an atraumatic rounded surface and a helical anchoring screw integral with the cylindrical body. The helical anchoring screw is able to penetrate tissue of a wall of the heart and is configured to provide temporary attachment, in rotation and in translation, of the capsule to an implantation site. The helical anchoring screw surrounds at least a portion of the length of the cylindrical body forming a contact region intended to come into contact with the wall of the cavity of the heart. Over the length of the contact region, the external diameter of the cylindrical body is less than the inner diameter of the helical anchoring screw, so as to leave a free gap there between. The helical anchoring screw is secured to the cylindrical body near the proximal end of the contact region, and extends freely to the opposite distal end.

Claims20

Dependent claims

An intracardiac capsule, comprising:

a cylindrical body comprising an atraumatic rounded surface;
and
a helical anchoring screw integral with the cylindrical body, able to penetrate tissue of a wall of a cavity of the heart and configured to provide temporary attachment, in rotation and in translation, of the capsule to an implantation site;
wherein the helical anchoring screw surrounds at least a portion of the length of the cylindrical body forming a contact region along a circumferential region of the cylindrical body intended to come into contact with the wall of the cavity of the heart;
wherein, over the length of the contact region, the external diameter of the cylindrical body is less than the inner diameter of the helical anchoring screw, so as to leave a free gap between the cylindrical body and the helical anchoring screw;
wherein rotation of the helical anchoring screw threads at least two screw turns into a length of tissue such that the two screw turns press the contact region along the circumferential region of the cylindrical body against an external portion of the tissue surface parallel to the tissue surface.

3 more elements

A method of implanting an intracardiac capsule, comprising:

positioning an intracardiac capsule having a helical anchoring screw against a tissue wall at an implantation site, such that an axis of the capsule forms an acute angle relative to the tissue wall;
and
imparting a rotational movement on the capsule to cause progression of the helical anchoring screw in the tissue wall;
wherein the helical anchoring screw progresses into an external portion of the tissue wall in rotation and in translation via threading of the tissue, causing a portion of the tissue wall to be received in a gap between the helical anchoring screw and a circumferential region of the cylindrical body, thereby securing a length of the circumferential region of the capsule to the external portion of the tissue wall.

1 more element

Dependencies are inferred from the claim text.

Intracardiac capsule implantable on a thin wall, including the septum wall

Life of this patent

Intracardiac capsule implantable on a thin wall, including the septum wall

Life of this patent

Abstract

Claims20