Tissue Anchors with Hemostasis Features

A hemostatic tissue anchor (120, 320, 420, 520) deliverable within a catheter to a target site, the hemostatic tissue anchor (120, 320, 420, 520) configured to be anchored to a cardiac tissue wall at the target site, the hemostatic tissue anchor (120, 320, 420, 520) comprising:

• an anchor portion (130) supported by a generally elongate anchor shaft (132) releasably securable to the catheter, the anchor portion (130) positioned at a distal end of the generally elongate anchor shaft (132), the anchor portion (130) configured to expand from a first generally elongate configuration to a second expanded configuration such that the anchor portion (130) in the second expanded configuration can be drawn tightly against the cardiac tissue wall at the target site when a tensile force is applied to the anchor portion (130);
• and
• two or more discs (126, 326) coupled to the elongate anchor shaft (132), the two or more discs (126, 326) surrounding the elongate anchor shaft (132), the two or more discs (126, 326) being configured to be disposed entirely within the cardiac tissue wall at the target site,
• whereby, once the two or more discs (126, 326) are implanted entirely within the cardiac tissue wall at the target site, the two or more discs (126, 326) act as a hemostatic seal of an opening through the cardiac tissue wall, through which opening the elongate anchor shaft (132) is disposed,
• wherein the hemostatic tissue anchor (120, 320, 420, 520) further comprises a sleeve (124, 330) surrounding at least a portion of the elongate anchor shaft (132), and wherein the two or more discs (126, 326) are integral with the sleeve (124, 330) and coupled to the elongate anchor shaft (132) via the sleeve (124, 330).