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US 11,439,318 B2Granted
Active magnetic position sensor
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsGregory K. Olson, Troy T. Tegg, Andrew R. Oliverius, Zachary L. Helgeson
Life of this patent
Estimating the term…
Abstract
An medical device, comprising an elongate shaft extending along a shaft longitudinal axis and comprising a shaft proximal portion and a shaft distal portion that is sized and configured for insertion into a body. An active magnetic position sensor can be disposed within the shaft distal portion.
Claims16
A catheter tip assembly, comprising:
- a proximal stem that comprises a lumen;
- an electrode wall that comprises a center cavity, the electrode wall coupled to a distal end of the proximal stem, and wherein the electrode wall is configured to distribute energy to a tissue;
- an electrode cap coupled to a distal end of the electrode wall, the electrode cap defining an electrode pocket in a distal face of the electrode cap;
- and
- an elongate thermocouple extending through the lumen of the proximal stem and the center cavity and into the electrode pocket defined by the electrode cap, wherein:
- the elongate thermocouple is turned around a portion of a longitudinal axis defined by the catheter tip assembly,
- a distal end of the elongate thermocouple is disposed in the electrode pocket at a non-zero angle with respect to the longitudinal axis defined by the catheter tip assembly,
- the elongate thermocouple distributes a biasing force over the turned portion of the elongate thermocouple, and
- application of a force to the electrode cap causes the electrode wall and the elongate thermocouple to flex.
6 more elements
A catheter, comprising:
- an electrode wall that comprises a center cavity, wherein the electrode wall is configured to distribute energy to a tissue;
- an electrode cap coupled to a distal end of the electrode wall, the electrode cap defining an electrode pocket in a distal face of the electrode cap;
- an elongate thermocouple turned around a portion of a longitudinal axis defined by the catheter;
- and
- a fluid lumen manifold, wherein:
- the elongate thermocouple is turned around the fluid lumen manifold,
- the elongate thermocouple is disposed adjacent to the fluid lumen manifold in the center cavity,
- the elongate thermocouple is disposed in the electrode pocket at a non-zero angle with respect to the longitudinal axis defined by the catheter tip assembly,
- application of a force to the electrode cap causes the electrode wall and the elongate thermocouple disposed adjacent to the fluid lumen manifold to flex.
6 more elements
A catheter tip assembly comprising:
- an electrode wall that comprises a center cavity, wherein the electrode wall is configured to distribute energy to a tissue;
- an elongate thermocouple turned around a portion of a longitudinal axis defined by the catheter tip assembly;
- a fluid lumen manifold, wherein;
- the elongate thermocouple is turned around the fluid lumen manifold,
- a diameter at which the elongate thermocouple is turned around the fluid lumen manifold is between an outer diameter of the fluid lumen manifold and an inner diameter of the electrode wall, and
- application of a force to the electrode wall causes the electrode wall and the elongate thermocouple to flex;
- and
- an electrode cap, wherein the electrode cap comprises an electrode pocket formed in a distal face of the electrode cap, wherein a most distal end of the elongate thermocouple is disposed in the electrode pocket, at a non-zero angle with respect to the longitudinal axis of the catheter tip assembly.
5 more elements
Dependencies are inferred from the claim text.