公开(公告)号：US20250082471A1

公开(公告)日：2025-03-13

申请号：US18953733

申请日：2024-11-20

Applicant: Medtronic CV Luxembourg S.a.r.l.

Inventor： Stephen MONTGOMERY ,  Maro SCIACCHITANO

IPC: A61F2/24 ,  A61B17/00 ,  A61M25/01

Abstract: A system including a self-expanding prosthesis configured to foreshorten during deployment thereof and a delivery device configured to percutaneously deliver the self-expanding prosthesis. The delivery device includes a handle having an actuator thereon, an outer sheath including a proximal end coupled to the handle and a pusher shaft slidingly disposed within the outer sheath. The pusher shaft has a proximal end coupled to the handle and a distal end configured to releasably couple to the self-expanding prosthesis such that the self-expanding prosthesis axially moves therewith. The inner shaft has a distal portion of the inner shaft that is configured to receive a self-expanding prosthesis thereon. The outer sheath and the pusher shaft are configured to simultaneously move in opposing axial directions via actuation of the actuator on the handle to compensate for the foreshortening of the self-expanding prosthesis during deployment.

公开(公告)号：US12178701B2

公开(公告)日：2024-12-31

申请号：US18181941

申请日：2023-03-10

Applicant: Medtronic CV Luxembourg S.a.r.l.

Inventor： Stephen Montgomery ,  Maro Sciacchitano

IPC: A61F2/24 ,  A61B17/00 ,  A61M25/01

Abstract: A system including a self-expanding prosthesis configured to foreshorten during deployment thereof and a delivery device configured to percutaneously deliver the self-expanding prosthesis. The delivery device includes a handle having an actuator thereon, an outer sheath including a proximal end coupled to the handle and a pusher shaft slidingly disposed within the outer sheath. The pusher shaft has a proximal end coupled to the handle and a distal end configured to releasably couple to the self-expanding prosthesis such that the self-expanding prosthesis axially moves therewith. The inner shaft has a distal portion of the inner shaft that is configured to receive a self-expanding prosthesis thereon. The outer sheath and the pusher shaft are configured to simultaneously move in opposing axial directions via actuation of the actuator on the handle to compensate for the foreshortening of the self-expanding prosthesis during deployment.

公开(公告)号：US11918466B2

公开(公告)日：2024-03-05

申请号：US17177984

申请日：2021-02-17

Applicant: Medtronic CV Luxembourg S.a.r.l.

Inventor： Niall Duffy ,  John Gallagher ,  Gerry McCaffrey ,  Noam Miller ,  Glenn Stante

IPC: A61F2/24 ,  A61F2/95 ,  A61M29/00

CPC classification number: A61F2/2436 ,  A61F2/9522 ,  A61M29/00

Abstract: A medical device delivery system can include a dilator including a tip having a taper in a distal direction, a coupler, and a flap that radially protrudes from the tip. The flap can be configured to bend against a body lumen to cover at least a portion of the delivery system when the dilator is tracked through the body lumen. A medical device delivery system can include a dilator including a tip having a lumen and a coupler having a lumen. The coupler can be configured to securely connect to the tip such that the lumen of the tip is aligned with the lumen of the coupler to allow a guide wire to pass therethrough. Methods for loading a medical device into a delivery catheter are also disclosed.

公开(公告)号：US11911269B2

公开(公告)日：2024-02-27

申请号：US17688147

申请日：2022-03-07

Applicant: Medtronic CV Luxembourg S.A.R.L.

Inventor： Padraig Savage ,  Joseph Callol ,  Alaena DeStefano ,  Joshua Dwork ,  Devin Gosal ,  Karan Punga ,  Finn Rinne ,  Billy Tam

IPC: A61F2/24 ,  A61F2/915

CPC classification number: A61F2/2418 ,  A61F2002/91558 ,  A61F2220/005 ,  A61F2230/005 ,  A61F2230/008 ,  A61F2230/0013 ,  A61F2230/0054 ,  A61F2230/0078 ,  A61F2250/0037

Abstract: A prosthesis can include a collapsible, reexpandable frame comprising first, second, and third sets of struts that define first and second rows of expandable cells. In some embodiments, the struts of the first, second, and third set of struts can be tapered. In some embodiments, the frame can include an intermediate section and an inflow section that is proximal to the intermediate section. The inflow section can include a concave saddle portion that is adjacent the intermediate section, and an outwardly flared portion.

公开(公告)号：US11819629B2

公开(公告)日：2023-11-21

申请号：US16705318

申请日：2019-12-06

Applicant: Medtronic CV Luxembourg S.a.r.l.

Inventor： Susheel Deshmukh

IPC: A61F2/95 ,  A61M25/00 ,  B29C48/09 ,  B29C48/00 ,  A61F2/24 ,  A61F2/966 ,  A61L29/04 ,  B29L31/00

CPC classification number: A61M25/0045 ,  A61F2/2436 ,  A61F2/966 ,  A61L29/049 ,  A61M25/0009 ,  B29C48/0021 ,  B29C48/09 ,  B29L2031/7542

Abstract: A catheter shaft includes an inner layer defining an innermost circumferential surface of the catheter shaft and defining a lumen of the catheter shaft, and an outer layer defining an outermost circumferential surface of the catheter shaft. The inner layer is formed by a first polymer having a first durometer and a first melting temperature. The outer layer is formed by alternating first and second segments of the first polymer and a second polymer, respectively, that alternate in a circumferential direction. The second polymer has a second durometer softer than the first durometer and a second melting temperature lower than the first melting temperature. Each segment of the alternating first and second segments extend in an axial direction for substantially an entire length of the catheter shaft. A method of forming the catheter shaft via extrusion is also disclosed.

公开(公告)号：US20230301781A1

公开(公告)日：2023-09-28

申请号：US18319819

申请日：2023-05-18

Applicant: Medtronic CV Luxembourg S.A.R.L.

Inventor： Kshitija GARDE ,  Joel RACCHINI ,  Paul ROTHSTEIN ,  Jeffrey SANDSTROM

IPC: A61F2/24

CPC classification number: A61F2/2418 ,  A61F2/2409 ,  A61F2220/005 ,  A61F2220/0075 ,  A61F2230/0013 ,  A61F2230/0017 ,  A61F2230/0069 ,  A61F2230/0078 ,  A61F2230/008 ,  A61F2250/0069

Abstract: A transcatheter valve prosthesis includes an expandable tubular stent, a prosthetic valve within the stent, and an anti-paravalvular leakage component coupled to and encircling the tubular stent. The anti-paravalvular leakage component includes a radially-compressible annular scaffold, which is a sinusoidal patterned ring of self-expanding material, and an impermeable membrane extending over the annular scaffold. The anti-paravalvular leakage component has an expanded configuration in which at least segments of the annular scaffold curve radially away from the tubular stent. Alternatively, the anti-paravalvular leakage component includes a plurality of self-expanding segments and an annular sealing element coupled to inner surfaces of the segments. The anti-paravalvular leakage component has an expanded configuration in which the segments curve radially away from the tubular stent and the annular sealing element is positioned between an outer surface of the tubular stent and inner surfaces of the segments. The segments may be orthogonal or oblique to the outer surface of the tubular stent.

公开(公告)号：US20230210661A1

公开(公告)日：2023-07-06

申请号：US18181941

申请日：2023-03-10

Applicant: Medtronic CV Luxembourg S.a.r.l.

Inventor： Stephen MONTGOMERY ,  Maro SCIACCHITANO

IPC: A61F2/24

CPC classification number: A61F2/2436 ,  A61F2/2418

Abstract: A system including a self-expanding prosthesis configured to foreshorten during deployment thereof and a delivery device configured to percutaneously deliver the self-expanding prosthesis. The delivery device includes a handle having an actuator thereon, an outer sheath including a proximal end coupled to the handle and a pusher shaft slidingly disposed within the outer sheath. The pusher shaft has a proximal end coupled to the handle and a distal end configured to releasably couple to the self-expanding prosthesis such that the self-expanding prosthesis axially moves therewith. The inner shaft has a distal portion of the inner shaft that is configured to receive a self-expanding prosthesis thereon. The outer sheath and the pusher shaft are configured to simultaneously move in opposing axial directions via actuation of the actuator on the handle to compensate for the foreshortening of the self-expanding prosthesis during deployment.

公开(公告)号：US20220211480A1

公开(公告)日：2022-07-07

申请号：US17703752

申请日：2022-03-24

Applicant: Medtronic CV Luxembourg S.a.r.l.

Inventor： Paraic FRISBY ,  Niall DUFFY

IPC: A61F2/00 ,  A61F2/24

Abstract: A loading device includes a locking collar assembly including a proximal end, a distal end, and a loading channel formed between the proximal end and the distal end. The device also includes a loading funnel coupled to the distal end of the locking collar assembly at a proximal end of the loading funnel. The loading funnel is configured to store a collapsible medical device in a partially collapsed state within a tapered interior volume of the loading funnel. The tapered interior volume decreases in volume from a distal end of the loading funnel to the proximal end of the loading funnel.

公开(公告)号：US20220183833A1

公开(公告)日：2022-06-16

申请号：US17688147

申请日：2022-03-07

Applicant: Medtronic CV Luxembourg S.A.R.L.

Inventor： Padraig SAVAGE ,  Joseph CALLOL ,  Alaena DESTEFANO ,  Joshua DWORK ,  Devin GOSAL ,  Karan PUNGA ,  Finn RINNE ,  Billy TAM

IPC: A61F2/24

Abstract: A prosthesis can include a collapsible, reexpandable frame comprising first, second, and third sets of struts that define first and second rows of expandable cells. In some embodiments, the struts of the first, second, and third set of struts can be tapered. In some embodiments, the frame can include an intermediate section and an inflow section that is proximal to the intermediate section. The inflow section can include a concave saddle portion that is adjacent the intermediate section, and an outwardly flared portion.

公开(公告)号：US11284997B2

公开(公告)日：2022-03-29

申请号：US16600854

申请日：2019-10-14

Applicant: Medtronic CV Luxembourg S.A.R.L.

Inventor： Than Nguyen ,  Hung Nguyen ,  MyKim Nguyen ,  Stanley Komatsu ,  Robrecht Michiels

IPC: A61F2/24

Abstract: A heart valve prosthesis is provided having a self-expanding multi-level frame that supports a valve body comprising a skirt and plurality of coapting leaflets. The frame transitions between a contracted delivery configuration that enables percutaneous transluminal delivery, and an expanded deployed configuration having an asymmetric hourglass shape. The valve body skirt and leaflets are constructed so that the center of coaptation may be selected to reduce horizontal forces applied to the commissures of the valve, and to efficiently distribute and transmit forces along the leaflets and to the frame. Alternatively, the valve body may be used as a surgically implantable replacement valve prosthesis.