Medtronic, Inc.

Microsoft Technology Licensing, LLC

Alan Shi

Bernard Q Li

Darren A Janzig

Richard T Stone

Steven T Deininger

Dale F Seeley

Scott R Stanslaski

Srivatsan Parthasarathy

Margaret Bush

Daniel D Sorensen

Thomas M Hillebrand

Peng Cong

Jadin C Jackson

Erik J Peterson

Seth M Humphrys

Eric Joseph Winner

Xingfu Chen

Nicholas D Stepka

Wen Tan

Daniel S Sorensen

Biddappa Nanaiah Berera

Rajeet Nair

Rakesh Malhotra

Darren C Janzig

Michael Michael

A method of forming a medical device contact element includes annealing an elongated rod of Ti-15Mo alloy material to form an annealed rod having a Young's Modulus of less than 13.5 Mpsi and an elastic range or strain of at least 0.7%. Then forming a contact ring element from the annealed rod and assembling the contact ring element into a medical device. Contact rings and lead receptacles including the same are also described.

Titanium alloy contact ring element having low modulus and large elastic elongation

In some examples, the disclosure relates to a medical device such as an implantable medical lead. The medical lead may include: a lead body including an electrically conductive lead wire; an electrical contact on a proximal portion of the lead body, the electrical contact including a contact substrate; and an electrode on a distal portion of the lead body, the electrode including an electrode substrate, wherein the electrode substrate is electrically coupled to the contact substrate via the electrically conductive lead wire, wherein the lead wire is formed of a composition comprising titanium or titanium alloys, wherein the electrode substrate is formed of a first beta-titanium alloy, and wherein the contact substrate is formed of a second beta-titanium alloy.

Medical leads and techniques for manufacturing the same

A leadless neurostimulation device including a header unit having at least one primary electrode having a contact surface that defines an external surface on a side of the device, an outer housing that forms a side of the header unit opposite of the contact surface of the primary electrode, and a dielectric mount that receives at least a portion of the primary electrode and at least partially surrounds the primary electrode, the dielectric mount being configured to electrically insulate the primary electrode from the outer housing, the dielectric mount being received and fixed within a recessed portion of the outer housing, and a housing having a secondary electrode positioned on the same side of the leadless neurostimulation device as the primary electrode, the primary electrode and the secondary electrode being configured to transmit an electrical stimulation signal therebetween to provide electrical stimulation therapy to a tibial nerve of a patient.

Minimally invasive leadless neurostimulation device

A stimulation therapy system dynamically modifies therapy intensity based on measured neurotransmitter levels. In some examples, the system delivers, via an electrode implanted in a brain of a patient and stimulation circuitry, an electrical stimulus; monitors an electrical current generated by the stimulation circuitry to deliver the electrical stimulus; determines, based on the electrical current, a value representative of a concentration of dopamine in the brain of the patient; determines, based on the value representative of the concentration of dopamine, a value for one or more stimulation parameters that at least partially define electrical stimulation therapy; and delivers, via the electrode, the electrical stimulation therapy.

Brain stimulation therapy

A system provides a burr hole cap assembly configured to secure a position of a lead implanted through a burr hole in a cranium of a patient. One or more electrodes are coupled to one or more components of the burr hole cap assembly. The one or more electrode is disposed within the burr hole cap assembly for sensing signals within a brain of the patient or stimulating a portion of the brain of the patient.

Burr cap-mounted electrodes

In some examples, the disclosure relates to a medical device comprising a lead including an electrically conductive lead wire; and an electrode electrically coupled to the lead wire, the electrode including a first portion and a second portion, wherein the first portion defines an exposed outer surface of the electrode and is electrically coupled to the second portion along a first interface, wherein the second portion is electrically coupled to the lead wire along a second interface different from the first interface via welding to couple the lead wire to the electrode, wherein an electrical signal may be transferred between the lead wire and exposed outer surface of the first portion via the second portion, and wherein the first portion is formed from a first material having a first composition, and the second portion is formed from a second material having a second composition different from the first composition.

In some examples, the disclosure relates to a medical device comprising a lead including an electrically conductive lead wire; and an electrode electrically coupled to the lead wire, the electrode including a substrate and a coating on an outer surface of the substrate, wherein the lead wire is formed of a composition comprising titanium or titanium alloys, wherein the substrate is formed of a composition comprising one or more of titanium, tantalum, niobium, and alloys thereof, wherein the coating comprises at least one of Pt, TiN, IrOx, and poly(dioctyl-bithiophene) (PDOT). In some examples, the lead wire may be coupled to the lead wire via a weld, such as, e.g., a laser weld.

The invention describes a method and compositions where the presence of cobalt and or nickel have been depleted from the surface layer(s) of a cobalt, chromium, nickel containing alloy.

Process and material solution to reduce metal ion release for implantable medical device application

The invention describes a process to remove a recast layer and/or burrs from machining processes to provide a surface of a titanium medical device without dissipation of copper or zinc from the surface of the medical device.

Growing community of inventors

Plymouth, MN, United States of America

Alan Shi