Systems and methods for automatically determining patient swallow frequency

• US 10,143,404 B2
• Filed: 11/16/2011
• Issued: 12/04/2018
• Est. Priority Date: 11/17/2010
• Status: Active Grant

• Current Assignee: University of Florida Research Foundation, Incorporated (State University System of Florida)
• Original Assignee: University of Florida Research Foundation, Incorporated (State University System of Florida)
• Inventors: Crary, Michael Allen, Carnaby-Mann, Giselle D.
• Primary Examiner(s): CERIONI, DANIEL LEE
• Application Number:
  US13/817,206
• Publication Number:
  US 20130245499A1
• Time in Patent Office: 2,575 Days
• Field of Search: 600586, 600587, 600593
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/1107 Measuring contraction of parts of the body, e.g. organ, muscle apparatus for measuring work or force in general G01L
• CPC Class Codes: A61B 5/4205 Evaluating swallowing
• CPC Class Codes: A61B 7/00 Instruments for auscultation
• CPC Class Codes: A61B 7/04 Electric stethoscopes microphones, acoustic transducers therefor H04R
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

Patient swallow frequency is automatically determined by collecting patient data, analyzing the patient data to automatically identify swallow events, and automatically calculating the swallow frequency based upon the identified swallow events. In some cases, the patient data is collected by a patient interface that wirelessly transmits the data to a computing device for analysis.

Claims

1. A method for determining a frequency of spontaneous patient swallowing and diagnosing dysphagia in the patient, the method comprising:

continuously collecting spontaneous patient swallow data using a patient interface monitoring device positioned in contact with a neck of a patient, the patient interface monitoring device comprising an adhesive patch and a first sensor and a second sensor configured to collect spontaneous patient swallow data, wherein collecting spontaneous patient swallow data further comprises audio data and tissue acceleration data associated with the spontaneous patient swallowing;

transmitting the collected spontaneous patient swallow data to a computing device from the patient interface monitoring device;

analyzing the spontaneous patient swallow data with a data analyzer at a processor of the computing device to identify spontaneous patient swallow events;

counting a number of identified spontaneous swallow events over a predetermined time period;

determining the spontaneous patient swallow frequency on the computing device based upon the number of identified swallow events over the predetermined time period;

comparing, at the processor, the determined spontaneous patient swallow frequency to reference data, wherein the reference data comprises a plurality of model swallow data representative of a model swallow event based on patient parameters, the patient parameters including at least one of an age or a sex of the patient;

generating, at the processor, a patient diagnosis of dysphagia based upon the comparison of the determined spontaneous patient swallow frequency to the reference data; and

reporting results including the patient diagnosis of dysphagia, to a user of the computing device.

2. The method of claim 1, wherein the patient interface monitoring device adheres to the patient'"'"'s neck.

3. The method of claim 1, wherein transmitting the collected spontaneous patient swallow data comprises wirelessly transmitting the spontaneous patient swallow data from the patient interface to the computing device.

4. The method of claim 1, wherein reporting the results further comprises outputting the determined spontaneous patient swallow frequency.

5. The method of claim 1, wherein the sensor of the patient interface monitoring device comprises an accelerometer that is configured to sense accelerations associated with movement of patient tissue when the patient swallows spontaneously.

6. The method of claim 2, wherein the patient interface monitoring device comprises a thin flexible polymeric substrate with a circular outer periphery and electronic components positioned at a center of the patient interface, the thin flexible polymeric substrate comprises a layer of adhesive that enables the device to adhere to the patient'"'"'s neck, and the electronic components comprise a microprocessor configured to transmit the collected spontaneous patient swallow data to the computing device.

7. The method of claim 6, wherein the patient interface monitoring device is configured as a one-time-use patch that is applied to the patient'"'"'s skin.

8. The method of claim 5, wherein analyzing the spontaneous patient swallow data comprises:

comparing, at the data analyzer, a spontaneous patient swallow feature with one or more model swallow data representative of a model swallow event to determine a likelihood of the spontaneous patient swallow feature is a spontaneous patient swallow event, the model swallow data comprising at least one of acceleration data or pressure data; and

incrementing, at the data analyzer, the number of identified swallow events in response to determining that the likelihood exceeds a threshold.

9. The method of claim 1, further comprising:

comparing, using the computing device, the patient swallow frequency to reference data; and

,

outputting a result of comparing the spontaneous patient swallow frequency to the reference data, the result including the diagnosis.

10. The method of claim 1, further comprising attaching the patient interface monitoring device at a point over a lateral border of a trachea immediately inferior to a cricoid cartilage of the patient.