US 12,426,867 B2
Systems and methods for organ retraction and space opening
Kwok Wai Samuel Au, Shatin (CN); Hoi Wut Yip, Shatin (CN); Tsz Yin Chung, Tseung Kwan O (CN); and Stuart Moran, Hong Kong (CN)
Assigned to The Chinese University of Hong Kong, Shatin (CN); and Microline Surgical, Inc., Beverly, MA (US)
Appl. No. 17/602,723
Filed by The Chinese University of Hong Kong, Shatin (CN); and Retraction Limited, Hong Kong (CN)
PCT Filed Apr. 10, 2020, PCT No. PCT/CN2020/084115
§ 371(c)(1), (2) Date Oct. 8, 2021,
PCT Pub. No. WO2020/207455, PCT Pub. Date Oct. 15, 2020.
Claims priority of provisional application 62/832,097, filed on Apr. 10, 2019.
Prior Publication US 2022/0167958 A1, Jun. 2, 2022
Int. Cl. A61B 17/02 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); A61B 34/00 (2016.01); A61B 34/30 (2016.01); A61B 34/32 (2016.01); A61B 90/00 (2016.01); A61B 18/12 (2006.01); A61B 34/20 (2016.01)
CPC A61B 17/0218 (2013.01) [A61B 34/32 (2016.02); A61B 34/71 (2016.02); A61B 34/76 (2016.02); A61B 2017/00022 (2013.01); A61B 2017/00867 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/126 (2013.01); A61B 2034/2061 (2016.02); A61B 2034/2065 (2016.02); A61B 2034/301 (2016.02); A61B 2034/306 (2016.02); A61B 2090/061 (2016.02); A61B 2090/065 (2016.02)] 19 Claims
OG exemplary drawing
 
1. A system for organ retraction comprising:
a surgical retraction device, comprising:
a first shaft comprising a distal end and a proximal end extending along a longitudinal axis;
a first pair of retractor struts extending from the distal end toward the proximal end, wherein the first pair of retractor struts are configured to be positionable between a collapsed configuration with the first pair of retractor struts substantially parallel to the longitudinal axis, and an expanded configuration with middle portions of the first pair of retractor struts bowed away from the longitudinal axis in opposite directions within a same plane, wherein in the expanded configuration the first pair of retractor struts are configured to retract an organ of a patient during a surgical procedure; and
a second shaft extending along the longitudinal axis,
wherein the second shaft is configured to translate relative to the first shaft along the longitudinal axis,
wherein the second shaft is positioned to translate within the first shaft,
wherein a distal portion of each of the first pair of retractor struts is affixed proximal to the distal end of the first shaft and a proximal portion of each of the first pair of retractor struts is affixed to the second shaft,
wherein translating the second shaft toward the distal end of the first shaft causes the first pair of retractor struts to transition between the collapsed configuration and the expanded configuration,
wherein a degree of bowing of the first pair of retractor struts is based on a relative position of the first shaft and the second shaft; and
a controller configured to actuate the first pair of retractor struts between the collapsed configuration and the expanded configuration, determine an amount of bowing of the first pair of retractor struts or an amount of organ retraction performed by the first pair of retractor struts, and based on the determined amount adjust bowing the first pair of retractor struts during the surgical procedure, wherein the controller is configured to translate the second shaft relative to the first shaft.