Pulse oximeter sensor
First Claim
1. In apparatus for sensing light absorption through transillumination of blood perfused flesh by a light source and reception of light by a light sensor;
- a wrap for securing said light source and sensor in optical contact with a patent comprising;
an outer, flexible layer of polymeric material; and
an innermost, body facing layer comprising a compliant sheet of metallized material which is capable of reflecting body heat and is highly opaque, and means for securing said sheet to the body of a patient.
5 Assignments
0 Petitions
Accused Products
Abstract
A pulse oximeter sensor is provided in which the wrap which encloses and secures the light source and detector to the body includes a sheet of metallized material. The metallized material reflects body heat back to the body and provides opacity to interfering ambient light. The wrap may be formed in a "T" shape, with the light sensor and detector aligned with the stem of the "T", or in a disposable elongated configuration with the light sensor and detector longitudinally aligned with the wrap. The wrap is secured during use through either adhesive means or by the use of hook and loop fabric patches.
314 Citations
19 Claims
-
1. In apparatus for sensing light absorption through transillumination of blood perfused flesh by a light source and reception of light by a light sensor;
- a wrap for securing said light source and sensor in optical contact with a patent comprising;
an outer, flexible layer of polymeric material; and
an innermost, body facing layer comprising a compliant sheet of metallized material which is capable of reflecting body heat and is highly opaque, and means for securing said sheet to the body of a patient. - View Dependent Claims (2, 3, 4, 5, 11)
- a wrap for securing said light source and sensor in optical contact with a patent comprising;
-
6. In apparatus for sensing light absorption through transillumination of blood perfused flesh by a light source and reception of light by a light sensor;
- a wrap for securing said light source and sensor in optical contact with a patient comprising;
a generally rectangular inner sheet of compliant material having an adhesive coated, body facing side, longitudinal edges extending along each side of said sheet in the longitudinal dimension, and a central region intermediate the longitudinal ends of said sheet which is intended to engage the tip of a finger; and
an outer sheet of metallized material,wherein, when said wrap engages a finger tip at said central region and said wrap is folded over opposing sides of said finger, the opposing, adhesive-coated longitudinal edges of said wrap may be sealed together. - View Dependent Claims (7, 8, 9, 10)
- a wrap for securing said light source and sensor in optical contact with a patient comprising;
-
12. In apparatus for sensing light absorption through transillumination of blood perfused flesh by a light source and reception of light from said source by a light sensor;
- a wrap of securing said light source and sensor in optical contact with a finger, comprising a generally T-shaped sheet of material, the stem of the "T" including means for affixing said light source and sensor to said wrap, and the top of the "T" including means, laterally disposed therein, for securing the top of the "T" in a folded condition around a finger, wherein electrical connections to said light source and light sensor extend in a direction generally parallel to the longitudinal axis of a finger when the wrap is secured to the finger.
- View Dependent Claims (13, 14, 15)
-
16. In apparatus for sensing light absorption through transillumination of blood perfused flesh by a light source and reception of light from said source by a light sensor, a wrap for securing said light source and sensor in optical contact with a finger comprising an elongated sheet of material having a longitudinal dimension and a lateral dimension across which said wrap is folded during use, the finger contacting surface of said sheet being coated with an adhesive;
- and means for protecting said adhesive from unintended adhesion prior to use;
said finger contacting surface including a longitudinal region for attaching said light source and sensor and their electrical connections in alignment with the longitudinal dimension of said sheet of material. - View Dependent Claims (17, 18, 19)
- and means for protecting said adhesive from unintended adhesion prior to use;
Specification