The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 21, 2024

Filed:

Oct. 01, 2021
Applicant:

Medtronic, Inc., Minneapolis, MN (US);

Inventors:

Vladimir P. Nikolski, Blaine, MN (US);

Linnea R. Lentz, Stacy, MN (US);

Amy E. Thompson-Nauman, Ham Lake, MN (US);

Teresa A Whitman, Dayton, MN (US);

Mark T. Marshall, Cape Coral, FL (US);

Assignee:

Medtronic, Inc, Minneapolis, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); A61B 17/00 (2006.01); A61B 17/34 (2006.01); A61M 25/00 (2006.01); A61N 1/05 (2006.01); A61B 17/32 (2006.01); A61M 25/01 (2006.01); A61N 1/39 (2006.01);
U.S. Cl.
CPC ...
A61B 17/3468 (2013.01); A61B 17/00234 (2013.01); A61B 17/3415 (2013.01); A61M 25/008 (2013.01); A61N 1/0504 (2013.01); A61B 2017/00331 (2013.01); A61B 2017/320056 (2013.01); A61B 17/3494 (2013.01); A61M 25/0194 (2013.01); A61N 1/3968 (2013.01);
Abstract

In some examples, a system includes a medical device comprising an elongate body configured to advance through layers of tissue of a patient, a lumen extending through the elongate body, a fluid line configured to supply fluid to the lumen, and a pressure sensor positioned within the lumen or the fluid line. The system may further include processing circuitry configured to receive, from the pressure sensor, a signal corresponding to the pressure of the fluid at each of a plurality of time points, determine, for each time point: a corresponding amplitude value of the signal, a difference between two amplitude values of the signal, an amplitude oscillation status of the signal, a position of the elongate body based on the difference and the amplitude oscillation status; and provide an indication of the position of the elongate body relative to the layers of tissue.


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