Sensor Systems

• US 20190313977A1
• Filed: 06/21/2019
• Published: 10/17/2019
• Est. Priority Date: 03/11/2013
• Status: Active Application

• Current Assignee: University of Utah Research Foundation (State of Utah)
• Original Assignee: University of Utah Research Foundation (State of Utah)
• Inventors: Tathireddy, Prashant, Mastrangelo, Carlos, Solzbacher, Florian, Marrouche, Nassir, Magda, Jules
• Application Number:
  US16/449,169
• Publication Number:
  US 20190313977A1
• Time in Patent Office: Days
• CPC Class Codes: A61B 2562/0223 Magnetic field sensors
• CPC Class Codes: A61B 2562/0285 Nanoscale sensors
• CPC Class Codes: A61B 2562/063 in a linear array
• CPC Class Codes: A61B 2562/066 in a matrix array
• CPC Class Codes: A61B 5/05 Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves impedance plethysmography A61B5/0295; measuring movement of the entire body or parts thereof A61B5/11; detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof A61B5/24
• CPC Class Codes: A61B 5/14503 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14539 for measuring pH
• CPC Class Codes: A61B 5/14542 for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/4842 Monitoring progression or stage of a disease
• CPC Class Codes: A61B 5/4848 Monitoring or testing the effects of treatment, e.g. of medication
• CPC Class Codes: A61B 5/6852 Catheters
• CPC Class Codes: A61B 5/686 Permanently implanted devices, e.g. pacemakers, other stimulators, biochips A61B5/6861 takes precedence
• CPC Class Codes: G01N 33/54373 involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings
• CPC Class Codes: H01F 1/0045 Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use preparation of fullerenes in general C01B32/15

Abstract

A sensor sheath for a catheter. The sensor sheath includes a substrate having at least one sensor associated therewith and an electronics unit in communication with the at least one sensor, wherein the substrate is configured to attach to a catheter.

Claims

1. A sensor sheath for a catheter, comprising:

a substrate having at least one sensor associated therewith; and

an electronics unit in communication with the at least one sensor,

wherein the substrate is configured to attach to a catheter.

2. The sensor sheath of claim 1, wherein the at least one sensor comprises a hydrogel sensor.

3. The sensor sheath of claim 2, wherein the at least one sensor further comprises a plurality of magnetic particles associated with the hydrogel sensor.

4. The sensor sheath of claim 3, wherein the magnetic particles comprise magnetic nanoparticles.

5. The sensor sheath of claim 3, wherein each of the plurality of magnetic particles has a magnetic field, and wherein the magnetic fields of the plurality of magnetic particles are aligned in the same direction.

6. The sensor sheath of claim 3, wherein each of the plurality of magnetic particles has a magnetic field, and wherein the magnetic fields of the plurality of magnetic particles are aligned in a Halbach array.

7. The sensor sheath of claim 3, wherein the magnetic particles are embedded within the hydrogel sensor.

8. The sensor sheath of claim 3, wherein the hydrogel sensor is sensitive to an analyte.

9. The sensor sheath of claim 3, wherein the magnetic particles are in a layer on top of the hydrogel sensor.

10. The sensor sheath of claim 3, wherein the at least one sensor further comprises a magnetometer adjacent the hydrogel sensor.

11. The sensor sheath of claim 1, wherein the substrate comprises a flexible, biocompatible material, at least a portion of which is curved so as to wrap around a catheter.