US 11,806,047 B2
Methods and apparatus for preventing vaginal lacerations during childbirth
Mark Juravic, Encinitas, CA (US); and Michael Stewart, San Jose, CA (US)
Assigned to MATERNA MEDICAL, INC
Filed by Materna Medical, Inc., Mountain View, CA (US)
Filed on Apr. 5, 2022, as Appl. No. 17/713,933.
Application 17/713,933 is a continuation of application No. 15/050,287, filed on Feb. 22, 2016, abandoned.
Application 15/050,287 is a continuation of application No. 13/876,920, abandoned, previously published as PCT/US2011/032324, filed on Apr. 13, 2011.
Application 13/876,920 is a continuation in part of application No. PCT/US2010/052528, filed on Oct. 13, 2010.
Prior Publication US 2022/0226021 A1, Jul. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/42 (2006.01); A61B 1/303 (2006.01); A61B 1/31 (2006.01); A61B 17/34 (2006.01); A61M 29/02 (2006.01); A61B 5/00 (2006.01); A61B 5/22 (2006.01); A61B 17/02 (2006.01); A61B 90/00 (2016.01); A61B 17/00 (2006.01)
CPC A61B 17/42 (2013.01) [A61B 1/303 (2013.01); A61B 1/31 (2013.01); A61B 5/22 (2013.01); A61B 5/227 (2013.01); A61B 5/435 (2013.01); A61B 5/4343 (2013.01); A61B 5/4836 (2013.01); A61B 17/0206 (2013.01); A61B 17/3423 (2013.01); A61B 90/03 (2016.02); A61B 90/06 (2016.02); A61M 29/02 (2013.01); A61B 17/02 (2013.01); A61B 17/3439 (2013.01); A61B 2017/00119 (2013.01); A61B 2017/00199 (2013.01); A61B 2017/345 (2013.01); A61B 2090/036 (2016.02); A61B 2090/065 (2016.02)] 14 Claims
OG exemplary drawing
 
1. A vaginal dilation device, comprising:
a handle disposed at a proximal portion of the device;
a plurality of arms coupled to the handle and extending distally from the handle;
an expansion mechanism coupled to the arms, located proximal to the handle, and configured to move the arms radially outwards at a controlled force; and
a release disposed distal to the plurality of arms and configured to be at a location for delivery into a vaginal canal of a patient and configured to quickly reduce an outer diameter of the vaginal dilation device.