公开(公告)号：US20230405279A1

公开(公告)日：2023-12-21

申请号：US18239696

申请日：2023-08-29

Applicant: EDWARDS LIFESCIENCES CORPORATION

Inventor： Bingquan Su ,  Nima V. Nia ,  Douglas Thomas Dominick ,  Sakyasingh Tripathy ,  Hengchu Cao ,  Rene Santana

IPC: A61M25/04

CPC classification number: A61M25/04 ,  A61M2210/125

Abstract: A system for delivering a guidewire through a heart valve comprises a delivery catheter configured to pass through a blood flow pathway of a heart, an inner catheter having an inner lumen, a guidewire configured to pass through the inner lumen of the inner catheter, and a positioning device crimped onto an outer surface of the inner catheter. wherein. The delivery catheter is configured to receive the inner catheter, guidewire, and positioning device and is configured to prevent expansion of the positioning device. The positioning device is configured to expand upon removal from the delivery catheter.

公开(公告)号：US20220008233A1

公开(公告)日：2022-01-13

申请号：US17485239

申请日：2021-09-24

Applicant: Edwards Lifesciences Corporation

Inventor： Nima V. Nia ,  Hengchu Cao ,  Sakyasingh Tripathy ,  Douglas Thomas Dominick ,  Bingquan Su ,  Behnood Miri ,  Zahra Moyedi

IPC: A61F2/93 ,  A61F2/90 ,  A61F2/915

Abstract: Described herein are artificial valves that have a frame and leaflets that grow or expand with a patient. Upon placing the valve inside the patient, the valve expands as the annulus of the patient expands. The frame of the valve is configured to expand which in turn causes the leaflets to expand (e.g., to grow). The valve includes a thin undulating wire embedded inside the leaflets. As the annulus of the patient grows, the frame expands, and as the frame expands, the leaflets grow. The growth or expansion of the leaflets is configured so that the valve continues to operate properly (e.g., the leaflets continue to coapt) with expansion of the annulus. The change in size of the valve can be configured to accommodate changes in size of the annulus from an infant or child to an adult.

公开(公告)号：US20240041483A1

公开(公告)日：2024-02-08

申请号：US18367021

申请日：2023-09-12

Applicant: EDWARDS LIFESCIENCES CORPORATION

Inventor： Sakyasingh Tripathy ,  Hengchu Cao ,  Nima V. Nia ,  Douglas Thomas Dominick ,  Bingquan Su ,  Amanda Tjipta Sugijoto

IPC: A61B17/22 ,  A61B17/00

CPC classification number: A61B17/22031 ,  A61B17/00234 ,  A61B17/22 ,  A61B2017/00349 ,  A61B2017/22098 ,  A61B2017/308

Abstract: A method and device for advancing a guidewire past a calcified leaflet of a heart valve are described. A dual guidewire device includes a primary guidewire, a secondary guidewire, and a sheath. The primary guidewire is configured to advance past a heart valve while the secondary guidewire is configured to pull open the calcified leaflet of the heart valve while the primary guidewire advances past the heart valve. The catheter can contain both the primary guidewire and the secondary guidewire.

公开(公告)号：US20220241072A1

公开(公告)日：2022-08-04

申请号：US17723266

申请日：2022-04-18

Applicant: Edwards Lifesciences Corporation

Inventor： Bingquan Su ,  Nima V. Nia ,  Amanda Tjipta Sugijoto ,  Hengchu Cao ,  Sakyasingh Tripathy ,  Douglas Thomas Dominick

IPC: A61F2/24 ,  A61B17/04

Abstract: A method comprises anchoring a first suture to a first papillary muscle, anchoring the first suture to a ventricle wall, and cinching the first suture to cause the first papillary muscle to move closer to the ventricle wall.

公开(公告)号：US20210378817A1

公开(公告)日：2021-12-09

申请号：US17410732

申请日：2021-08-24

Applicant: Edwards Lifesciences Corporation

Inventor： Nima V. Nia ,  Hengchu Cao ,  Sakyasingh Tripathy ,  Douglas Thomas Dominick ,  Bingquan Su

IPC: A61F2/24

Abstract: A double heart valve anchoring system can include a first anchor having at least a portion configured to be secured within a first trans-septal opening in an interventricular septum, a tricuspid valve device coupled to the first anchor, and a mitral valve device coupled to the first anchor.

公开(公告)号：US20210310840A1

公开(公告)日：2021-10-07

申请号：US17352240

申请日：2021-06-18

Applicant: Edwards Lifesciences Corporation

Inventor： Cole Emerson Feagler ,  Sakyasingh Tripathy ,  Brian Ray Hipszer ,  Feras Al Hatib ,  Hengchu Cao

IPC: G01F1/688 ,  G01F1/684

Abstract: Described herein are thermal mass flow sensors that combine calorimetric and anemometric (e.g., hot-wire) elements to provide a hybrid approach to determining flow rate of a liquid. The flow probes or flow sensors are configured to use a heater to apply heat to a thermally-conducting material in contact with the flowing liquid, to measure a temperature of the thermally-conducting material upstream of the heater and downstream or at the heater, to adjust power to the heater to achieve a targeted temperature difference, and to determine a flow rate based at least in part on the power supplied to the heater and the measured temperatures. This approach provides flow rate due at least in part to the fluid cooling the thermally-conductive material proportionate to flow rate with non-linear effects. This hybrid approach can provide accurate readings of flow rates of liquids delivered through an IV line to a patient.