CPC A61B 17/22031 (2013.01) [A61B 17/221 (2013.01); A61B 17/320725 (2013.01); A61M 25/0074 (2013.01); A61M 25/0119 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/2215 (2013.01); A61B 2017/22034 (2013.01); A61B 2017/22038 (2013.01); A61B 2017/22079 (2013.01); A61B 2017/3435 (2013.01)] | 18 Claims |
1. An inverting tube apparatus,
comprising:
an inversion support catheter;
a puller at least partially disposed within a lumen of the inversion support catheter; and
a knitted flexible tube extending over a distal end of the inversion support catheter in a compressed state, the knitted flexible tube having a plurality of interlocking loops, a first end coupled to a distal end region of the puller, and a second end disposed on an outer surface of the inversion support catheter,
wherein the knitted flexible tube extends distally from the second end and over the outer surface of the inversion support catheter with the plurality of interlocking loops overlapping to form a knit overlap configured to hold the knitted flexible tube in the compressed state, and
wherein the knitted flexible tube is configured to be pulled proximally into the inversion support catheter by pulling the puller proximally so that the knitted flexible tube stretches from the compressed state, and rolls and inverts over a distal end of the inversion support catheter;
wherein the inversion support catheter comprises a plurality of slots or cut-out regions configured to enhance flexibility while maintaining column strength of the inversion support catheter such that the inversion support catheter is able to withstand at least about 500 g of compressive force without buckling.
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