OPTICAL-BASED PHYSIOLOGICAL SENSOR ASSEMBLY WITH DISPOSABLE BARRIER LAYER

• US 20100222654A1
• Filed: 02/16/2010
• Published: 09/02/2010
• Est. Priority Date: 03/02/2009
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Anderson, Arik, Widman, Ronald A., GONOPOLSKIY, OLEG
• Granted Patent: US 8,452,358 B2
• Time in Patent Office: Days
• US Class Current: 600/310
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/6833 Adhesive patches

Abstract

A physiological sensor assembly includes a physiological sensor having at least one light source and at least one optical receiver. A substantially transparent barrier layer is disposed between the physiological sensor and the patient'"'"'s skin such that the barrier layer is removably adhered to the physiological sensor and removably adhered to the patient'"'"'s skin.

Claims

1. A physiological sensor assembly, comprising:

a physiological sensor having at least one light source and at least one optical receiver; and

a substantially transparent to near infrared light barrier layer having a first surface and an opposing second surface, said first surface configured to be removably adhered to a patient'"'"'s skin and said second surface configured to be removably adhered to the sensor.

2. The physiological sensor assembly of claim 1, wherein said adhesion to said skin is configured to be stronger than said adhesion to said sensor.

3. The physiological sensor assembly of claim 1, wherein said adhesion to said sensor is configured to be stronger than said adhesion to said skin.

4. The physiological sensor assembly of claim 1, wherein said barrier is non-occlusive.

5. The physiological sensor assembly of claim 3, wherein a surface area of said barrier layer is larger than a surface area of said sensor.

6. The physiological sensor assembly of claim 1, wherein said barrier has a refractive index between approximately 1.0 and approximately 1.5.

7. The physiological sensor assembly of claim 1, wherein said barrier has a thickness of approximately 2 millimeters or less.

8. The physiological sensor assembly of claim 1, wherein said barrier is sterilizable or supplied sterile to isolate a non-sterile sensor from the patient'"'"'s skin.

10. The physiological sensing system of claim 8, wherein said film has a thickness of about 2 mm or less.

11. The physiological sensing system of claim 8, wherein said film has a refractive index between approximately 1.0 and approximately 1.5.

12. The physiological sensing system of claim 8, wherein said film is more strongly affixed to said patient'"'"'s skin than to the physiological sensor.

13. The physiological sensing system of claim 8, wherein said film is more strongly affixed to said physiological sensor than to said patient'"'"'s skin.

14. The physiological sensor assembly of claim 8, wherein said barrier is sterilizable to isolate a non-sterile sensor from the patient'"'"'s skin.

15. The physiological sensor assembly of claim 8, wherein said barrier is supplied sterile to isolate a non-sterile sensor from the patient'"'"'s skin.

9. A physiological sensing system, comprising:

a physiological sensor having at least one near-infra red light source and at least one optical receiver;

a controller/display unit in signal communication with said physiological sensor; and

a substantially transparent, non-occlusive film that is removably affixed to said physiological sensor and removably affixed to a patient'"'"'s skin.