Medical retrieval devices and related methods of use
AssigneeBoston Scientific Scimed, Inc.
InventorsAndrew J. Campbell, Mark Andrew Hera, Richard C. Tah, Steven E. Walak
Life of this patent
Estimating the term…
Abstract
A medical device may include an elongate member, and a plurality of grasping members extending from the elongate member. Each of the grasping members may include a proximal end, and a distal end. Each of the grasping members may include at least one first section formed of a first material and a second material, and a second section located at the distal end of the grasping member. The second section may be formed without the first material and being less stiff than the at least one first section.
Claims18
A medical device, comprising:
- a member;
- at least one actuation member;
- a plurality of grasping members extending from the member, each of the grasping members including:
- a proximal end;
- a distal end;
- at least one first section being formed of a first material and a second material;
- and
- a second section located at the distal end of the grasping member, the second section being formed without the first material and having a different stiffness than the at least one first section,
- wherein, in an expanded configuration, the second section further includes a bent portion that extends radially outward from a longitudinal axis of the medical device, and
- wherein the at least one actuation member is coupled to the second section of at least one grasping member and at least partially surrounds at least a portion of the bent portion.
A medical device, comprising:
- a member;
- a plurality of grasping members extending from the member, each of the grasping members including:
- a proximal end;
- a distal end disposed further away from a longitudinal axis of the medical device than the proximal end;
- at least one first section being formed of a first material having a first material property and a second material having a second material property;
- and
- a second section located at the distal end of the grasping member, the second section being formed without the first material and having a different stiffness than the at least one first section, wherein, in an expanded configuration, the second section further includes a bent portion that extends radially outward from a longitudinal axis of the medical device;
- and
- a plurality of actuation members directly coupled to the second section and at least partially surrounding at least a portion of the bent portion, wherein the plurality of actuation members are configured to expand and/or contract the grasping members.
A medical device, comprising:
- a basket or grasper having a plurality of arms movable between a retracted configuration and an expanded configuration, the basket or grasper being formed by a plurality of grasping members, each grasping member having:
- a proximal end;
- a distal end;
- a plurality of first sections being formed of an outer material and a core material;
- and
- a second section located at the distal end of the grasping member, the second section being formed with only the core material, and having a different stiffness than each of the plurality of first sections, wherein each of the plurality of arms are formed by joined first sections of adjacent grasping members, and wherein in the expanded configuration, the second section includes a bent portion that extends radially outward from a longitudinal axis of the medical device;
- and
- an actuation member coupled to the second section and at least partially surrounding at least a portion of the bent portion.
Dependencies are inferred from the claim text.