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.
Patent No.:
Date of Patent:
Aug. 11, 2026
Filed:
Jul. 14, 2021
Nxstage Medical, Inc., Lawrence, MA (US);
NxStage Medical, Inc., Lawrence, MA (US);
Abstract
A system and a method for reducing leakage current from a patient fluidly connected to a medical device by tubing filled with a conductive fluid, such as blood or dialysate, includes clamping a first current sensor onto the tubing, clamping a transducer that can induce a current in the tubing onto the tubing, and driving the transducer with an appropriate driving signal. The first current sensor detects the magnitude and phase of electrical current in the tubing, while the transducer is driven with a signal that induces an appropriate current in the tubing. The voltage in the tubing resulting from the induced current is at a level that causes the overall voltage drop from the patient to the medical device to be low enough that any leakage current due to this voltage drop is below an acceptable threshold for leakage current.