形状記憶ポリマ容器閉塞デバイス

Japanese Patent JP7318081

B2

A system comprising an outer conduit (318) having proximal and distal ends; a shape memory polymer (SMP) foam (303) having proximal and distal ends and that is configured to transition from a SMP foam secondary shape to a SMP foam primary shape when the SMP foam is heated above its transition temperature; a metal backbone including: (a)(i) a first portion (310) that extends from the SMP foam proximal end to the SMP foam distal end and which is generally covered by the SMP foam, and (a)(ii) a second portion (311) that extends distally from the SMP foam distal end and which is not covered by the SMP foam; wherein: (b)(i) the SMP foam and the metal backbone are both included within the outer conduit; (b)(ii) the metal backbone second portion is configured to transition from a metal backbone second portion secondary shape to a metal backbone second portion primary shape; (b)(iii) the metal backbone second portion is in the metal backbone second portion secondary shape and is located between the SMP foam distal end and the distal end of the outer conduit; (b)(iv) the metal backbone second portion includes an outer metal portion, including a channel, and an inner metal portion included within the channel; (b)(v) the metal backbone second portion primary shape has a circular base between the SMP foam and a distal tip of the metal backbone; and (b)(vi) at least a portion of the SMP foam is slidingly coupled to the metal backbone.

Maitland, Duncan Jay.
Lanzmann, Todd El.
Rodriguez, Jennifer N.
Boyle, Anthony Jay.
Groczski, Alan See.
Wierzwicki, Mark A.

JP2022133111A

July 31, 2023

August 24, 2022

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THE TEXAS A&M UNIVERSITY SYSTEM

A61B17/12

JP2008521492A

US20030236533
US20130253086
US20130253634

Tadashige Ito
Tadahiko Ito
Shinsuke Ohnuki

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