Myocardial infarction patch for minimally invasive implant
AssigneePacesetter, Inc.
InventorsWenbo Hou, Sheldon Williams
Life of this patent
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Abstract
A fixation section and a rim form a myocardial patch for implant in the pericardial space. The fixation section is adapted to promote fibrosis to secure the patch in place. The rim is secured to and surrounds at least a portion of the fixation section and has a lumen. The patch is adapted to transition between a collapsed state and an expanded state. A stylet is passed through the lumen to force the patch into a collapsed state and is removed when the patch is positioned to allow the patch to expand and engage the epicardial surface.
Claims19
A method of implanting a myocardial patch on an epicardial surface of a patient, the patch having a fixation structure at least partially surrounded by a rim defining a lumen along the length of the rim, said method comprising:
- positioning the distal end of a lumen structure in the pericardial space;
- inserting a stylet into and along the length of the rim lumen of the patch, wherein the application of force by the stylet along the length of the rim lumen causes the patch to at least partially collapse;
- pushing the patch through the lumen structure and into the pericardial space;
- and
- removing the stylet from along the length of the rim lumen, wherein the absence of the application of force by the stylet along the length of the rim lumen allows the patch to assume its expanded state.
A myocardial patch system comprising:
- a stylet;
- a myocardial patch including a fixation section adapted to promote fibrosis and a rim structure secured to and surrounding at least a portion of the fixation section and having a lumen there through extending along the length of the rim and configured to receive the stylet, wherein the patch is adapted to assume a collapsed state due to the application of force by the stylet when the stylet extends along the length of the rim lumen and to assume an expanded state due to the absence of the application of force by the stylet when the stylet does not extend along the length of the rim lumen;
- and
- an elongated body having a lumen there through and adapted for connection and disconnection from the rim structure, such that the rim lumen and the body lumen are in communication with each other when connected.
Dependencies are inferred from the claim text.