Apparatus and system for implanting an autonomous intracardiac capsule
First Claim
1. A system comprising a capsule and an implantation accessory, comprising:
- an autonomous capsule having a cylindrical body and at least one coupling finger secured to the cylindrical body and extending radially outward therefrom;
the cylindrical body having an outside diameter and at one end a projecting helical anchoring screw axially extending from the cylindrical body, to penetrate tissue of the wall of a cavity of the heart, the anchoring screw having a plurality of coils having a helix direction;
an implantation accessory having a proximal end and a distal end and a disconnectable means for supporting and guiding said capsule to an implantation site, and for rotational driving of the capsule to allow simultaneous driving and anchoring of the anchoring screw in the wall of the heart cavity, wherein;
said disconnectable means further comprises a lead body having a sheath of deformable material and a distal end, and a helical guide having a plurality of coils on said distal end, wherein;
the helical guide extends axially from the lead body and is secured to it in rotation and in translation;
the helical guide has an inner diameter homologous to the outside diameter of the cylindrical body of the capsule so as to house the capsule inside with the at least one coupling finger protruding between the coils of helical guide; and
the helical coils have a helix direction that is opposite to that of the anchoring screw.
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Accused Products
Abstract
A system of an autonomous intracardiac capsule and its implantation accessory. The autonomous capsule (10) includes a tubular body (12) with an anchoring screw (14) for penetrating the wall of a cavity of the heart, and at least one coupling finger (20, 22) radially projecting outwards. The implantation accessory (26) includes a lead body (28) with a sheath (30, 32) of deformable material supporting on the distal side a helical guide (36, 52), for guiding and driving by rotation the capsule. This helical guide is integral with the lead body, and its inner diameter is homologous to the outer diameter of the cylindrical body of the capsule so the latter can be housed it in, the coupling fingers protruding between the coils of the guide. The helix direction of the helical guide (36) is opposite to that of the anchoring screw (14). The helical guide is resiliently compressible in axial direction, and its helix pitch (38) is increased in the free distal end portion (40).
172 Citations
13 Claims
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1. A system comprising a capsule and an implantation accessory, comprising:
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an autonomous capsule having a cylindrical body and at least one coupling finger secured to the cylindrical body and extending radially outward therefrom;
the cylindrical body having an outside diameter and at one end a projecting helical anchoring screw axially extending from the cylindrical body, to penetrate tissue of the wall of a cavity of the heart, the anchoring screw having a plurality of coils having a helix direction;an implantation accessory having a proximal end and a distal end and a disconnectable means for supporting and guiding said capsule to an implantation site, and for rotational driving of the capsule to allow simultaneous driving and anchoring of the anchoring screw in the wall of the heart cavity, wherein; said disconnectable means further comprises a lead body having a sheath of deformable material and a distal end, and a helical guide having a plurality of coils on said distal end, wherein; the helical guide extends axially from the lead body and is secured to it in rotation and in translation; the helical guide has an inner diameter homologous to the outside diameter of the cylindrical body of the capsule so as to house the capsule inside with the at least one coupling finger protruding between the coils of helical guide; and the helical coils have a helix direction that is opposite to that of the anchoring screw. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification