Device handle for a medical device
AssigneeTerumo Kabushiki Kaisha
InventorTaiga Nakano
Life of this patent
Estimating the term…
Abstract
A medical device is disclosed for cutting substances inside a body lumen, the medical device including a rotatable tubular drive shaft; an expandable cutting member arranged on distal side of the drive shaft; an axial moving shaft connected to a distal end of the drive shaft with the cutting member, the axial moving shaft configured to expand and contract the cutting member by axially moving of the axial moving shaft; a handle configured to retract the drive shaft and the axial moving shaft; and an operating member disposed on a different axis with respect to an axis of the axial moving shaft.
Claims20
A medical device for cutting substances inside a body lumen, the medical device comprising:
- a rotatable tubular drive shaft having a wire inserted therethrough, the wire extending in a first direction;
- a cutting member arranged on a distal side of the drive shaft;
- a handle connected to a proximal portion of the rotatable tubular drive shaft;
- and
- a fixation unit attached to the handle, the fixation unit having a plurality of ridges that fix the wire, each of the plurality of ridges has a width parallel to the first direction and a length in a second direction perpendicular to the first direction when each of the plurality of ridges is positioned closest to the wire, and wherein each of the plurality of ridges of the fixation unit is separated and discontinuous from each other.
A medical device for cutting substances inside a body lumen, the medical device comprising:
- a rotatable tubular drive shaft having a wire inserted therethrough, the wire extending in a first direction;
- a cutting member arranged on a distal side of the drive shaft;
- a handle connected to a proximal portion of the rotatable tubular drive shaft;
- a fixation unit attached to the handle, the fixation unit having a plurality of ridges that fix the wire;
- an axial moving shaft connected to a distal end of the drive shaft with the cutting member, the axial moving shaft configured to expand and contract the cutting member by axially moving of the axial moving shaft;
- an operating member disposed on a different axis with respect to an axis of the axial moving shaft;
- wherein the operating member includes a locking member, the locking member comprising a locking ring and a locking base;
- and
- wherein the locking base has a plurality of holes or concavities configured to receive a movable pin on the locking ring, and the locking ring includes the movable pin configured to fit within a rotatable dial and has a generally round inner diameter and an oval outer diameter, such that an outer portion opposite a locking bearing on the locking ring extends beyond an outer diameter of the rotatable dial.
A medical device for cutting substances inside a body lumen, the medical device comprising:
- a rotatable tubular drive shaft having a wire inserted therethrough, the wire extending in a first direction;
- a cutting member arranged on a distal side of the drive shaft;
- a handle connected to a proximal portion of the rotatable tubular drive shaft;
- and
- a fixation unit attached to the handle, the fixation unit having a plurality of ridges that fix the wire, wherein the fixation unit is configured to fix the wire between a contact pad and a base member, the fixation unit having a rotatable handle with a generally round lower portion and generally rectangular handle, the generally round portion including the plurality of ridges, the plurality of ridges configured to contact the pad and presses downward to fix the wire between a lower surface of the pad and an upper surface of the base member.
Dependencies are inferred from the claim text.