Tc1 LLC

Covidien LP

Ian Coll McEachern

Robert B Stoddard

Carine Hoarau

Martin A Leugers

John Freddy Hansen

Eric T Lee

John Nguyen

Serge Dubeau

William V Hodges

Michael J Brown

Alex R Brown

Jeffrey R Lind

Joanna M Ignacio

Chalan Koneru

John Curtis Layton

Nicole L Parks

Leif A Erickson

Blood pump devices having improved rotary seals for sealing a bearing assembly supporting a rotor provided herein. Such rotary seals are particularly suited for use in blood pump devices that include rotors having cantilevered supported through a sealed mechanical bearing disposed outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The rotary seal can include a first and second face seal that are preloaded with a deflectable compliance member incorporated into the pump housing or a pair of magnets. Such rotary seals can instead or further utilize tight fitment between components or a bio-absorbable fill material to seal an interface between the rotor shaft and pump housing to seal the bearing assembly from fluid flowing through the pump.

Rotary seal for cantilevered rotor pump and methods for axial flow blood pumping

A surgical instrument includes a switch base, a power bus coupled to the switch base, an electrical lead coupled to the power bus, an actuator operatively engaged with the power bus, an actuator operatively engaged with the power bus, a membrane, and a housing. The switch base has top, bottom, and side surfaces. The membrane is disposed over the top surface of the switch base and over the power bus to seal the top surface of the switch base. The housing defines proximal and distal ends and a switch base cavity between the proximal and distal ends. The housing includes bulkheads that form a plurality of fluid impermeable seals that are disposed adjacent one of the proximal and distal ends. The fluid impermeable seals are configured to deter fluid from penetrating a proximal portion of the switch base cavity within which the electrical lead is coupled to the power bus.

Ingress protection for electrosurgical pencil switch

Methods and apparatus for wireless power transfer and communications are provided. In one embodiment, a wireless power transfer system comprises a transmit resonator configured to transmit wireless power, a receive resonator configured to receive the transmitted wireless power from the transmit resonator, a medical device configured to receive power from the receive resonator, a controller configured to change an operating parameter of the medical device resulting in a change to a sonic signature of the medical device, and a listening device configured to determine an intended communication from the implanted medical device or the implanted receive resonator based on the change to the sonic signature coming from the implanted medical device.

Resonant power transfer systems with communications

Disclosed are systems for wireless energy transfer including transcutaneous energy transfer. Embodiments are disclosed for user interface (UI) hubs to connect multiple batteries and to output system information to a patient. Embodiments are further disclosed for garments and devices to be worn by a patient requiring treatment. The garments are configured for a desired placement of a transmitter coil relative to a body of the patient and for facilitating patient comfort and quality of life. Methods for manufacturing and using the devices and the systems are also disclosed.

Wireless energy transfer system and wearables

A method of assembling a surgical instrument includes coupling a power bus to a switch base that has a top, a bottom, and side surfaces; adhering a membrane to the top surface of the switch base over the power bus to form a switch base assembly; positioning the switch base assembly within a first portion of a switch base cavity defined by a lower housing portion; and joining the lower housing portion with an upper housing portion. The upper housing portion defines a second portion of the switch base cavity. Joining the lower housing portion with the upper housing portion disposes the switch base within the first portion of the switch base cavity and prevents fluid from penetrating a proximal portion of the switch base cavity within which an electrical lead is coupled to the power bus.

Growing community of inventors

Sacramento, CA, United States of America

Ian Coll McEachern