Fluid occlusion detection apparatus and method

• US 10,226,573 B2
• Filed: 07/28/2014
• Issued: 03/12/2019
• Est. Priority Date: 07/30/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Baek, In-geol, Kim, Young-hyun, Kwak, Jae-kyung, Lee, Sang-hun
• Primary Examiner(s): Price, Nathan R
• Assistant Examiner(s): Ulsh, Dung T
• Application Number:
  US14/908,685
• Publication Number:
  US 20160184517A1
• Time in Patent Office: 1,688 Days
• CPC Class Codes: A61M 2005/16863 Occlusion detection
• CPC Class Codes: A61M 2005/16868 Downstream occlusion sensors
• CPC Class Codes: A61M 2205/0294 Piezoelectric materials
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/3317 Electromagnetic, inductive or dielectric measuring means
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/16854 by monitoring line pressure
• CPC Class Codes: A61M 5/16859 Evaluation of pressure response, e.g. to an applied pulse

Abstract

A fluid occlusion detection apparatus is disclosed. The fluid occlusion detection apparatus includes: a structure disposed on a fluid delivery device and that is deformed according to pressure; and a change detection sensor in a surrounding region of the structure, wherein the fluid delivery device includes a fluid reservoir container and/or a fluid delivery passageway for connecting a human body and the fluid reservoir container, and the change detection sensor detects a change in a value related to the change detection sensor due to deformation of a shape of the structure according to an increase in pressure inside the fluid delivery device by fluid occlusion inside the fluid delivery device.

Claims

1. A fluid occlusion detection apparatus comprising:

a structure disposed on a fluid delivery device and that is deformed according to pressure; and

a change detection sensor on a surrounding region of the structure, wherein;

the fluid delivery device comprises a fluid reservoir container and/or a fluid delivery passageway for connecting a human body and the fluid reservoir container,

the change detection sensor is configured to detect a change in a value related to the change detection sensor due to deformation of a shape of the structure according to an increase in pressure inside the fluid delivery device by fluid occlusion inside the fluid delivery device, and

the change detection sensor comprises a conductor in the surrounding region of the structure, and is configured to detect a change in a current when the conductor is deformed and open-circuited by a physical force generated by deformation of the shape of the structure due to an increase in the pressure inside the fluid delivery device by fluid occlusion inside the fluid delivery device.

2. The fluid occlusion detection apparatus of claim 1, wherein the structure is disposed on the fluid reservoir container and/or the fluid delivery passageway for connecting the human body and the fluid reservoir container.

3. The fluid occlusion detection apparatus of claim 1, wherein the structure is at least one selected from the group consisting of a membrane, a tube, a piston, and a bellows.

4. The fluid occlusion detection apparatus of claim 1, wherein the conductor is formed on a carbon bar and/or a ceramic bar and has conductivity.

5. A fluid occlusion detection method comprising:

measuring a parameter value related to a change detection sensor provided to a surrounding region of a fluid delivery device;

extracting a change in the measured parameter value based on deformation in a shape of a structure disposed on the fluid delivery device; and

detecting fluid occlusion inside the fluid delivery device based on the extracted change in the measured parameter value, wherein;

the fluid delivery device comprises a fluid reservoir container and/or a fluid delivery passageway for connecting a human body and the fluid reservoir container,

a shape of the structure is deformed due to an increase in pressure inside the fluid delivery device by the fluid occlusion inside the fluid delivery device, and

the parameter value related to the change detection sensor includes current of a conductor provided to the change detection sensor, and a change in the current of the conductor is extracted when the conductor disposed in a surrounding region of the structure is deformed and open-circuited by a physical force generated by the shape deformation of the structure disposed on the fluid delivery device.

6. The fluid occlusion detection method of claim 5, wherein the structure is at least one selected from the group consisting of a membrane, a tube, a piston, and a bellows.

7. The fluid occlusion detection method of claim 5, wherein the parameter value related to the change detection sensor provided to the surrounding region of the fluid delivery device is measured only when fluid flows inside the fluid delivery device.