Elongate medical device handle autolock
AssigneeSt. Jude Medical, Atrial Fibrillation Division, Inc.
InventorsStacie Marie Blaskowski, Steven Andreas Anderson
Life of this patent
Estimating the term…
Abstract
An embodiment of a handle assembly for an elongate medical device that may reduce the weight and/or expense of traditional handle may include an exterior adjusting knob extending along a longitudinal axis and configured to rotate about the axis, an insert, and a dowel pin. The insert may be configured to engage the adjusting knob and to rotate about the axis responsive to rotation of the adjusting knob. The insert may comprise an annular groove configured to engage a dowel pin, the annular groove comprising a sidewall comprising a chamfer. The dowel pin may be configured to engage the annular groove to resist rotation of the insert. In an embodiment, the insert may comprise plastic or polymer.
Claims19
A handle assembly for an elongate medical device, comprising:
- an exterior adjusting knob extending along a longitudinal axis and configured to rotate about said axis;
- an insert configured to engage said adjusting knob and to rotate about said axis responsive to rotation of said adjusting knob, said insert comprising an annular groove configured to engage a dowel pin, said annular groove comprising a sidewall comprising a chamfer;
- and
- a dowel pin configured to engage said annular groove to resist rotation of said insert;
- wherein said insert is configured to rotate about said axis to actuate one or more pull wires to deflect a shaft of the elongate medical device.
A handle assembly for an elongate medical device, comprising:
- an exterior adjusting knob extending along a longitudinal axis and configured to rotate about said axis;
- a polymer or plastic insert configured to engage said adjusting knob and to rotate about said axis responsive to rotation of said adjusting knob, said insert comprising an annular groove configured to engage a dowel pin;
- and
- a dowel pin configured to engage said annular groove to resist rotation of said insert when no external force is applied to said adjusting knob, wherein said insert is configured to rotate relative to said dowel pin when an external force is applied to said adjusting knob.
An elongate medical device comprising:
- a shaft comprising a distal end portion, a proximal end portion, a longitudinal axis extending through said distal and proximal end portions, and a pull wire coupled to said distal end portion configured to deflect said distal end portion;
- and
- a handle assembly coupled to said proximal end portion, said handle assembly comprising:
- an exterior adjusting knob extending along said axis and configured to rotate about said axis;
- an insert configured to engage said adjusting knob and to rotate about said axis responsive to rotation of said adjusting knob, said insert comprising an annular groove configured to engage a dowel pin, said annular groove comprising a beveled sidewall, wherein rotation of said insert applies a tensile force to said pull wire to deflect said shaft distal end portion;
- and
- a dowel pin configured to engage said annular groove to maintain the longitudinal position of said insert and to resist rotation of said insert;
- wherein said shaft and said handle assembly are configured to allow another medical device to be passed therethrough.
Dependencies are inferred from the claim text.