US 11,771,444 B2
Medical instrument having a balloon and an extraction member
Richard Crawford, Athenry (IE); Martin Lawrence Fawdry, Galway (IE); Louis McNern, Killybegs (IE); Aiden Flanagan, Kilcolgan (IE); Matthew Montague, Oranmore (IE); Geraldine Alice Toner, Lifford (IE); Enda Connaughton, Craughwell (IE); and Gary Gilmartin, Foxford (IE)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Apr. 6, 2021, as Appl. No. 17/223,805.
Claims priority of provisional application 63/006,793, filed on Apr. 8, 2020.
Prior Publication US 2021/0315595 A1, Oct. 14, 2021
Int. Cl. A61B 17/22 (2006.01)
CPC A61B 17/22 (2013.01) [A61B 2017/22038 (2013.01); A61B 2017/22051 (2013.01); A61B 2017/22084 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical instrument comprising:
a tube;
a sheath provided around the tube and coaxial with the tube;
an inflatable balloon provided at a distal end of the sheath, the balloon being configured to receive a fluid from a lumen of the sheath, and the balloon having:
a central opening along a longitudinal axis thereof, and into which the tube extends;
a proximal portion;
a middle portion adjacent to and distal of the proximal portion; and
a distal portion adjacent to and distal of the middle portion, the distal portion including a planar distal-facing surface and a distal neck distal of and perpendicular to the distal-facing surface,
wherein, in response to inflation, a maximum diameter of the middle portion is less than or equal to a maximum diameter of the proximal portion, and is less than a maximum diameter of the distal portion; and
an extraction member provided at a distal end of the tube, distal to the balloon, and movable axially relative to the balloon.