US 12,256,932 B2
Magnetic anastomosis devices with varying magnetic force at a distance
Robert F. Beisel, Robesonia, PA (US); Marvin Ryou, Melrose, MA (US); and Christopher Thompson, Needham, MA (US)
Assigned to G.I. Windows, Inc., Westwood, MA (US)
Filed by G.I. Windows, Inc., Westwood, MA (US)
Filed on Nov. 9, 2020, as Appl. No. 17/092,883.
Application 17/092,883 is a continuation of application No. 15/991,242, filed on May 29, 2018, granted, now 10,874,397.
Application 15/991,242 is a continuation of application No. 15/068,441, filed on Mar. 11, 2016, granted, now 10,517,600, issued on Dec. 31, 2019.
Claims priority of provisional application 62/132,075, filed on Mar. 12, 2015.
Prior Publication US 2021/0161532 A1, Jun. 3, 2021
Int. Cl. A61B 17/11 (2006.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01)
CPC A61B 17/1114 (2013.01) [A61B 2017/00876 (2013.01); A61B 2017/1117 (2013.01); A61B 2017/1139 (2013.01); A61B 17/12163 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An anastomosis system comprising:
a plurality of sets of matched magnetic compression anastomosis devices having different magnetic polar arrangements in which different sets of matched magnetic compression anastomosis devices provide different relative attractive forces over a distance when the matched devices are brought together for anastomosis such that interaction between anastomosis devices can be tuned for a given anastomosis procedure by selecting an initial set of matched devices from the anastomosis system based on an attractive force requirement for the given anastomosis procedure determined after the given anastomosis procedure has started with one or more sets of stronger-attracting matched devices available as backup if difficulties joining tissues are encountered during the procedure, wherein the plurality of sets of matched magnetic compression anastomosis devices comprises at least:
matched devices having the magnets arranged with identical out-of-plane magnetic pole orientations;
matched devices having the magnets arranged with alternating out-of-plane magnetic pole orientations;
matched devices having the magnets arranged with alternating pairs of out-of-plane magnetic pole orientations; and
matched devices having the magnets arranged with alternating quadruplets of out-of-plane magnetic pole orientations.