US 12,279,853 B1
Photoplethysmography sensors and processes
Brennan Torstrick, Atlanta, GA (US); and Mohsen Safaei Mohammadabadi, Smyrna, GA (US)
Assigned to Huxley Medical, Inc., Atlanta, GA (US)
Filed by Huxley Medical, Inc., Atlanta, GA (US)
Filed on Aug. 24, 2022, as Appl. No. 17/821,990.
Claims priority of provisional application 63/236,511, filed on Aug. 24, 2021.
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/1455 (2006.01); A61B 5/00 (2006.01); A61B 5/024 (2006.01); A61B 5/282 (2021.01)
CPC A61B 5/02416 (2013.01) [A61B 5/282 (2021.01); A61B 5/6833 (2013.01); A61B 2562/164 (2013.01); A61B 2562/166 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A patch comprising:
a silicone-based adhesive layer defining a silicone-based adhesive layer opening and comprising a first side and a second side;
an acrylic-based adhesive layer connected to the first side of the silicone-based adhesive layer, wherein the acrylic-based adhesive layer is exposed on the second side of the silicone-based adhesive layer through the silicone-based adhesive layer opening;
a rigid support structure comprising a bottom surface area defining a rigid support structure opening for a photoplethysmography (PPG) sensor; and
the PPG sensor extending through the rigid support structure opening, the silicone-based adhesive layer opening, and an acrylic-based adhesive layer opening, thereby configured for directly contacting skin of a patient, wherein the PPG sensor comprises:
a first side and a second side, the second side of the PPG sensor configured for directly contacting the patient's skin; and
a spacer operatively connected to the first side of the PPG sensor, wherein the patch is configured to be attached to the patient's skin, such that when the patch is attached to the patient's skin:
the silicone-based adhesive layer is configured to attach to a first portion of the patient's skin; and
the acrylic-based adhesive layer is configured to attach to a second portion of the patient's skin, the second portion of the patient's skin corresponding to at least a portion of the bottom surface area of the rigid support structure extending through the silicone-based adhesive layer opening.