US 11,986,210 B2
Medical elongated body and medical instrument set
Kenta Suzuki, Fujinomiya (JP); Kota Hamuro, Fujinomiya (JP); and Takito Inukai, Fujinomiya (JP)
Assigned to TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed by TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jun. 14, 2021, as Appl. No. 17/346,542.
Application 17/346,542 is a continuation of application No. 16/583,411, filed on Sep. 26, 2019, granted, now 11,134,982.
Application 16/583,411 is a continuation of application No. PCT/JP2018/012430, filed on Mar. 27, 2018.
Claims priority of application No. 2017-071981 (JP), filed on Mar. 31, 2017.
Prior Publication US 2021/0298786 A1, Sep. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/34 (2006.01); A61B 17/00 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61B 17/3423 (2013.01) [A61B 2017/00292 (2013.01); A61B 2017/00778 (2013.01); A61B 2017/3425 (2013.01); A61M 25/0068 (2013.01); A61M 25/0108 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A medical elongated body comprising:
a shaft portion made of a linear body comprising a proximal portion;
a distal member disposed in a distal side of the shaft portion and having a distal end opening portion and a proximal end opening portion, the distal member including a lumen extending from the distal end opening portion to the proximal end opening portion, the distal member having a first region having an inner layer and an outer layer which are made of a resin material, and a second region having the inner layer, the outer layer, and a tubular member made of a metallic material and disposed between the inner layer and the outer layer in the second region, the tubular member forming the second region being integrally formed with the shaft portion, the proximal end opening portion being disposed at a proximal end of the lumen, the proximal end opening portion having an inclined region inclined toward the shaft portion, the inclined region comprising a proximally-decreasing dimension;
a reinforcement layer containing a metallic material arranged between the inner layer and the outer layer of the first region to the inner layer and the outer layer of the second region of the distal member, the reinforcement layer being disposed inside of the tubular member in the second region; and
wherein an outer diameter of the first region is smaller than an outer diameter of the second region.