Minneapolis, MN, United States
Minneapolis, MN, United States

Medtronic plc has its principal offices in Ireland, its operational headquarters in suburban Minneapolis, Minnesota and is the world's third largest medical device company. In 2015, at the time of its relocation, Medtronic had the largest market capitalization of any company in Ireland: its market cap was about $100 billion while the market cap for CRH, Ireland’s largest indigenous business, was $18.4 billion.Medtronic operates in more than 160 countries. The company employs 85,000 people, including 5,800 scientists and engineers, pursuing research and innovation that has led to more than 28,000 patents. Wikipedia.


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Patent
Medtronic Inc. | Date: 2017-03-08

1. A stent comprising a cobalt-based alloy is disclosed. The cobalt-based alloy is free of nickel (Ni), and comprises 10-35 weight % metal member selected from the group consisting of platinum (Pt), gold (Au), iridium (Ir), osmium (Os), rhenium (Re), tungsten (W), palladium (Pd), tantalum (Ta), and combinations thereof; 16-21 weight % chromium (Cr); 0-12 weight % molybdenum (Mo); 0-3 weight % iron (Fe); and balance cobalt (Co). A stent comprising a molybdenum free cobalt-based alloy is also disclosed, comprising 10-35 weight % metal member selected from the group consisting of platinum (Pt), gold (Au), iridium (Ir), osmium (Os), rhenium (Re), tungsten (W), palladium (Pd), tantalum (Ta), and combinations thereof; 20-24 weight % chromium (Cr); 0-12 weight % nickel (Ni); 0-3 weight % iron (Fe); and balance cobalt (Co).


Methods and apparatus are disclosed for filling a therapeutic substance or drug within a hollow wire that forms a stent. The stent is placed within a chamber housing a fluid drug formulation. During filling, the chamber is maintained at or near the vapor-liquid equilibrium of the solvent of the fluid drug formulation. To fill the stent, a portion of the stent is placed into contact with the fluid drug formulation until a lumenal space defined by the hollow wire is filled with the fluid drug formulation via capillary action. After filling is complete, the stent is retracted such that the stent is no longer in contact with the fluid drug formulation. The solvent vapor pressure within the chamber is reduced to evaporate a solvent of the fluid drug formulation. A wicking means may control transfer of the fluid drug formulation into the stent.


Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is mounted with one end coupled to the distal end of the shaft while the other end of the sensor is not coupled to the catheter so that a portion of the sensor is spaced apart from the distal end of the shaft.


A delivery system for a stent-graft is disclosed having a tip capture device and a tip release handle mechanism configured to actuate the tip capture device. The tip release handle mechanism includes a rotatable grip component and a tip release actuation component. The grip component may be rotatable in a first direction to transition a proximal stent of the stent-graft from the delivery state to a partially deployed state and rotatable in an opposite, second direction to transition the proximal stent from the partially deployed state to a fully deployed state. The grip component is operably coupled to the tip release actuation component. The delivery system further includes a shaft component operably coupled to the tip release actuation component and the tip capture device.


Patent
Medtronic Inc. | Date: 2017-06-07

A venous valve prosthesis includes a frame and a prosthetic valve coupled to the frame. With the venous valve prosthesis implanted in a vein, the prosthetic valve includes a closed configuration wherein an outer surface of the prosthetic valve is in contact with a wall of the vein around a circumference of the prosthetic valve to prevent blood from flowing past the prosthetic valve between the wall of the vein and the outer surface of the prosthetic valve. The prosthetic valve is configured to move to an open configuration such that at least a portion of an outer wall of the prosthetic valve partially collapses away from the wall of the vein in response to antegrade blood flow through the vein to enable blood flow between the outer surface of the prosthetic valve and the wall of the vein.


Patent
Medtronic Inc. | Date: 2017-06-14

A prosthetic valve including a wire frame having a generally tubular body portion, an interior area, a longitudinal axis, a first end comprising a plurality of crowns, and a second end comprising a greater number of crowns than the first end. The wire frame includes a plurality of adjacent rows of modified diamond-shaped structures extending between the first and second ends. The prosthetic valve further includes a valve structure that includes a plurality of leaflets and that is attached within the interior area of the wire frame.


Patent
Medtronic Inc. | Date: 2017-03-01

A paravalvular leak resistant prosthetic heart valve system (20) including a stent frame (22), a valve structure (24) and a sealing mechanism (30). The stent frame has a surface. The valve structure is associated with the stent frame. The sealing mechanism at least partially extends over the surface of the stent frame. The sealing mechanism includes at least one semi-permeable membrane and an osmotic gradient driving material.


Patent
Medtronic Inc. | Date: 2017-03-01

A delivery system (100) for delivering a prosthesis includes a sheath (106), a slide shaft (128) having a threaded outer surface (130), and a handle (110). The handle includes an internal spring assembly (116) for selectively engaging and disengaging the handle with the threaded outer surface of the slide shaft. The internal spring assembly includes at least one spring arm (120), a head (122) coupled to the spring arm and having a circumferentially rounded threaded inner surface (124), and a ring (118) slidably disposed over the spring arm. When the ring is in a first longitudinal position, the threaded inner surface of the head is spaced apart from the threaded outer surface of the slide shaft. When the ring is in a second longitudinal position, the threaded inner surface of the head is threadedly engaged with the threaded outer surface of the slide shaft. The handle may include a resilient cover (1312) to provide the internal spring assembly with a biased or nominal operational position.


Patent
Medtronic Inc. | Date: 2017-03-01

A bioerodible stent includes an inner member of a first biocompatible metal, an intermediate member of a second biocompatible metal, and an outer member of a third biocompatible metal. The first biocompatible metal, second biocompatible metal, and third biocompatible member are selected such that galvanic corrosion occurs between the members. A biodegradable polymer coating may surround the members.


Patent
Medtronic Inc. | Date: 2016-04-13

A heart valve (10) that can be expanded following its implantation in a patient, such as to accommodate the growth of a patient and the corresponding growth of the area where the valve is implanted, and to minimize paravalvular leakage. In one aspect, the invention may maximize the orifice size of the surgical valve. The invention includes expandable implantable conduits (14) and expandable bioprosthetic stented valves. In one aspect of the invention, the valve may be adapted to accommodate growth of a patient to address limitation on bioprosthetic valve lifespans.

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