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US 8,992,406 B2Granted
Anatomic fit of a percutaneous VAD for right heart support
AssigneeABIOMED, Inc.
InventorScott C. Corbett
Life of this patent
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Abstract
An apparatus is disclosed including: a cannula having a shape closely matched to the anatomy of the right ventricle of the human heart, where the cannula has an outflow port configured to be located proximal the pulmonary artery and an inflow port located proximal the inferior vena cava. In some embodiments, the cannula is a close fit to the anatomy of at least 90%, 95%, or more of the population.
Claims19
A ventricular assist device comprising:
- a flexible cannula configured for catheter based percutaneous delivery, the cannula composed of a material featuring shape memory configured to provide the cannula with a shape closely matched to the anatomy of the right ventricle of the human heart,
- wherein the cannula comprises:
- a primary section corresponding to the path from the diaphragm fibrous ring in the inferior vena cava (IVC) to the IVC to right atrium (RA) transition (IVC-RA);
- a secondary section corresponding to the path from the IVC-RA to the tricuspid (TV);
- a tertiary section corresponding to the path from the TV to the pulmonic valve (PV);
- and
- a quaternary section corresponding to the path between the PV and the left branch of the pulmonary artery (PA),
- wherein the cannula has an outflow port configured to be located proximal the PA, the outflow port positioned in the quaternary section, and an inflow port configured to reside in the IVC, the inflow port positioned in the primary section and configured to be located beyond the diaphragm fibrous ring of the IVC
- a pump enclosed within the cannula;
- and
- an extension extending from the quaternary section.
8 more elements
A method comprising:
- receiving medical image data corresponding the anatomy of the right ventricle of each of a plurality of human subjects;
- processing the medical image data to determine landmark information indicative of the position of a plurality of anatomical landmarks, the landmarks including the inferior vena cava (IVC), right atrium (RA), tricuspid (TV), pulmonic valve (PV) and pulmonary artery (PA);
- generating information indicative of a position of the IVC, RA, TV, PV and PA;
- and
- generating a cannula design based on the landmark information,
- wherein the cannula design includes:
- a primary section corresponding to the path from the diaphragm fibrous ring in the IVC to the IVC to RA transition (IVC-RA),
- a secondary section corresponding to the path from the IVC-RA to the TV,
- a tertiary section corresponding to the path from the TV to the PV, and
- a quaternary section corresponding to the path between the PV and the left branch of the PA,
- wherein the primary section of the cannula extends to the inflow port and the inflow port is configured to be located beyond the diaphragm fibrous ring of the IVC,
- wherein the cannula has an outflow port configured to be located proximal the PA,
- wherein the outflow port is positioned in the quaternary section and an inflow port is located proximal the IVC,
- wherein the cannula includes a pump enclosed within the cannula, and
- wherein the cannula includes an extension extending from the quaternary section
- fabricating a flexible cannula configured for percutaneous delivery from a material featuring shape memory such that the shape memory material is configured to provide the cannula with a shape based on the cannula design.
13 more elements
Dependencies are inferred from the claim text.