US 12,076,113 B1
Method of making a measurement probe
Jimmy Jian-min Mao, Fremont, CA (US); and Robert E. Lash, Redwood City, CA (US)
Assigned to ViOptix, Inc., Newark, CA (US)
Filed by ViOptix, Inc., Newark, CA (US)
Filed on Nov. 1, 2022, as Appl. No. 18/051,841.
Application 18/051,841 is a division of application No. 17/165,847, filed on Feb. 2, 2021, granted, now 11,484,209.
Application 17/165,847 is a division of application No. 15/813,074, filed on Nov. 14, 2017, granted, now 10,905,332, issued on Feb. 2, 2021.
Application 15/813,074 is a continuation of application No. 14/446,222, filed on Jul. 29, 2014, granted, now 9,814,393, issued on Nov. 14, 2017.
Application 14/446,222 is a continuation of application No. 12/711,010, filed on Feb. 23, 2010, granted, now 8,792,951, issued on Jul. 29, 2014.
Int. Cl. A61B 5/00 (2006.01); A61B 5/1455 (2006.01); A61B 5/1459 (2006.01)
CPC A61B 5/0084 (2013.01) [A61B 5/14552 (2013.01); A61B 5/1459 (2013.01); A61B 5/4504 (2013.01); A61B 5/6847 (2013.01); A61B 5/7221 (2013.01); A61B 5/725 (2013.01); A61B 2562/0238 (2013.01); Y10T 29/49002 (2015.01); Y10T 29/49169 (2015.01); Y10T 29/49171 (2015.01)] 30 Claims
OG exemplary drawing
 
1. A method comprising:
forming a probe of a medical device for making an oxygen saturation measurement for a bone, where the forming the probe comprises:
providing a rigid elongated member, wherein the rigid elongated member comprises a proximal end, a distal end opposite the proximal end, and a smooth outer surface therebetween;
coupling a sensor head to the distal end of the rigid elongated member, wherein the sensor head comprises:
first and second openings; and
first and second fiber optic cables, wherein the first fiber optic cable is coupled to the first opening, and the second fiber optic cable is coupled to the second opening, and
the sensor head is positioned so that light directed into the bone via the first fiber optic cable travels in a first direction from the proximal end towards the distal end and exits the first opening in the first direction, and light reflected from the bone enters the second opening in a second direction, and travels from the distal end towards the proximal end in the second direction and through the second fiber optic cable; and
providing a flexible tube, extending from the proximal end of the rigid elongated member,
wherein the sensor head comprises:
third and fourth openings; and
third and fourth fiber optic cables, wherein the third fiber optic cable is coupled to the third opening, and the fourth fiber optic cable is coupled to the fourth opening,
ends of the first and second fiber optic cables are exposed on a first surface of the sensor head, and an axis passing through the elongated member passes through the first surface, and
ends of the third and fourth fiber optic cables are exposed on a second surface of the sensor head, and an axis passing through the elongated member does not pass through the second surface.