US 12,491,028 B2
System and methods for suturing guidance
Dwight Meglan, Westwood, MA (US); Arvind K. Ramadorai, Lexington, MA (US); Meir Rosenberg, Newton, MA (US); Joshua R. Snow, Clinton, CT (US); and William J. Peine, Ashland, MA (US)
Assigned to Covidien LP, Mansfield, MA (US)
Appl. No. 17/790,964
Filed by Covidien LP, Mansfield, MA (US)
PCT Filed Jan. 8, 2021, PCT No. PCT/US2021/012578
§ 371(c)(1), (2) Date Jul. 6, 2022,
PCT Pub. No. WO2021/158328, PCT Pub. Date Aug. 12, 2021.
Claims priority of provisional application 62/970,808, filed on Feb. 6, 2020.
Prior Publication US 2023/0015516 A1, Jan. 19, 2023
Int. Cl. A61B 34/10 (2016.01); A61B 34/00 (2016.01); A61B 90/00 (2016.01)
CPC A61B 34/10 (2016.02) [A61B 34/25 (2016.02); A61B 2034/104 (2016.02); A61B 2034/105 (2016.02); A61B 2034/107 (2016.02); A61B 2034/108 (2016.02); A61B 2034/254 (2016.02); A61B 2090/365 (2016.02); A61B 2090/371 (2016.02)] 16 Claims
OG exemplary drawing
 
1. A tissue suturing guidance system, comprising:
an image capturing device configured to capture an image of a suture site, wherein the image capturing device comprises a stereoscopic camera that provides stereoscopic images of the suture site;
a display configured to display an image of the suture site; and
a processor in communication with the image capturing device and the display, the processor configured to:
determine, based on the stereoscopic images of the suture site, a geometric tissue representation of the suture site;
access measured properties of the suture site;
determine, based on the measured properties of the suture site, a biomechanical tissue representation of the suture site; and
generate, based on the geometric tissue representation and the biomechanical tissue representation of the suture site, a suturing configuration for the suture site, wherein in generating the suturing configuration, the processor is configured to:
simulate placements of sutures at target locations based on the geometric and biomechanical tissue representations of the suture site to generate the suturing configuration for the suture site; and
determine an effectiveness of the suturing configuration based on whether a simulation-derived pressure across a tissue-to-tissue interface of the suture site, as calculated by a biomechanically-based simulation of the suturing site, is within a predetermined range of pressures that promote tissue regrowth;
wherein the tissue-to-tissue interface corresponds to tissue faces of the suture site based on the geometric tissue representation of the suture site.