Medtronic, Inc.

Medtronic Ablation Frontiers LLC

Xiaonan Shen

Can Cinbis

Jonathan L Kuhn

Jonathan P Roberts

Kenneth C Gardeski

Nathan A Grenz

James D Reinke

John Louis Sommer

James Kevin Carney

David A Anderson

Paul R Solheim

Michael B Terry

Jon D Schell

Lonnie D Ronning

Michael R Leners

Michael Andrew Reinert

Robert D Musto

David L Palkert

Aspects of the present disclosure include a medical device system including an implantable medical device and an external device with three or more electrodes configured to contact a patient's skin. The external device either transmits or receives a test signal to or from the implantable medical device using a plurality of possible receive dipoles, where each possible receive dipole is formed by a pair of electrodes. A signal quality monitor, either at the implantable medical device or at the external device, measures a signal quality for the possible receive dipoles.

Determination of dipole for tissue conductance communication

A delivery tool of a system for deploying medical diagnostics and/or therapy includes a deployment member and a sheath. An elastic cantilever element secured to a tubular sidewall of the deployment member, in proximity to a distal opening of a lumen formed by the sidewall, is spring biased to extend outward from the sidewall. When the cantilever element is received within the sheath, a sheath sidewall pushes the cantilever element inward, against the spring bias thereof, and a radius of curvature of the cantilever element approximately conforms to that of an outer surface of the deployment member sidewall. A helical track for receiving passage of a medical device helix fixation element therein may extend around a perimeter of the deployment member lumen, wherein a distal terminal end of the track is located in close proximity to the distal opening and generally opposite a free end of the cantilever element.

Systems for deploying medical diagnostics and/or therapy and delivery tools thereof

A medical device and associated method determine a signal amplitude of a sensor signal produced by a MEMS sensor, compare the signal amplitude to a stiction detection condition, detect stiction of the MEMS sensor in response to the signal amplitude meeting the stiction detection condition, and automatically provide a corrective action in response to detecting the stiction.

Accelerometer integrity alert

A system and method for identifying the location of a medical device within a patient's body may be used to localize the fossa ovalis for trans-septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis.

System for identifying the location of a device within a patients body in order to locate the fossa ovalis for trans-septal procedures

A medical device and associated method convert an analog signal using an adaptable bit number. The medical device includes an analog-to-digital (A/D) converter for receiving an analog signal. The A/D converter has a full scale range and a total number of bits spanning the full scale range. The A/D converter converts the analog signal to a digital signal over conversion cycles using an adaptable bit number so that on at least a portion of the conversion cycles an adapted number of bits spanning a portion of the full scale range less than the total number of bits is used by the A/D converter to convert the analog signal.

Ultra low power interface using adaptive successive approximation register

A medical device and associated method convert an analog signal using an adaptable number of comparisons between the analog signal and a reference signal. The medical device includes an analog-to-digital (A/D) converter for receiving an analog signal. The A/D converter has a full scale range and a total number of bits spanning the full scale range. The A/D converter converts the analog signal to a digital signal over conversion cycles using an adaptable number of comparisons. For at least one of the conversion cycles, the adaptable number of comparisons is less than the total number of comparisons required to convert the analog signal over the full scale range of the A/D converter.

Ultra low power analog to digital interface using range adaptive techniques

System for identifying the location of a device within a patient's body in order to locate the fossa ovalis for trans-septal procedures

A system and method for identifying the location of a medical device within a patient's body may be used to locate or identify the fossa ovalis for trans-septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis.

Optical methods of identifying the location of a medical device within a patient's body in order to locate the fossa ovalis for trans-septal procedures

An implantable lead including a lead body including an outer surface, a proximal end, a distal end, and at least one electrode; an electrically insulating member that extends axially over a first portion of the outer surface of the lead body between the proximal end and distal end, the electrically insulating member defining at least one aperture that exposes a first portion of the at least one electrode when in a first position over the lead body; and a reinforcement member formed at least partially of a different material than the insulating member and coupled to the insulating member, the reinforcement member extending axially over the outer surface of the lead body between the insulating member and proximal end. The reinforcement member may be configured to transfer at least one of a radial or axial force from a proximal portion of the reinforcement member to the insulating member, wherein the at least one of radial or axial force transferred to the insulating member is sufficient to move the insulating member over the outer surface of the lead body. In some examples, the lead may further include a deployable lobe member configured to anchor the reinforcement member and insulating member adjacent a tissue site within a patient.

Implantable medical device lead with selectively exposed electrodes and reinforcement member

An implantable medical device system and associated method monitor changes in transimpedance in a body tissue due to changes in cardiac pulsatility. A first dipole is used to deliver a non-stimulating electrical current. The first dipole includes a first electrode and a second electrode adapted to be deployed along a first body location. A second dipole is used to measure a voltage resulting from the non-stimulating electrical current being conducted through a portion of a patient's body. The second dipole includes a third electrode and a fourth electrode different than the first electrode and the second electrode and adapted to be deployed along a second body location spaced apart from the first body location.

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Shoreview, MN, United States of America

Xiaonan Shen