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US 10,864,010 B2Granted
Surgical handpiece and latching hub system
AssigneeSmith & Nephew, Inc.
InventorCemal Shener-Irmakoglu
Life of this patent
Estimating the term…
Abstract
Example embodiments include a drive unit and a hub and cutting implement that may be coupled to the hub by use of a latch between the hub and the drive unit. The latch may be configured to couple with the drive unit at locations on the perimeter of the drive unit. Some embodiments of the invention also include one or both of resection controls and fluid management systems.
Claims17
A system comprising:
- a drive unit comprising:
- a longitudinal axis;
- a perimeter about a cross-section of the drive unit transverse to the longitudinal axis, the perimeter at a distal end of the drive unit;
- an annular groove disposed proximally of the perimeter on an outside surface of the drive unit;
- an opening at the distal end of the drive unit, the opening defines an internal volume with an inside surface;
- and
- two or more slots extending along the longitudinal axis and radially through the drive unit to the internal volume and open on the distal end of the drive unit;
- a cutting implement comprising:
- a hub telescoped within the internal volume, an outside surface of the hub abuts the inside surface of the opening;
- one or more protrusions extending radially outward from the hub, at least one of the one or more protrusions telescoped with one of the two or more slots of the drive unit;
- a latch disposed on the outside surface of the hub, the latch comprising an engaging member releasably coupled to the annular groove;
- an outer tube coupled to the hub;
- and
- a cutter near a distal tip of the outer tube.
11 more elements
A cutting implement for use with a drive unit, the cutting implement comprising:
- a hub that defines an outside surface;
- an outer tube rigidly coupled to the hub, the outer tube defines a longitudinal axis;
- an inner tube telescoped with the outer tube along the longitudinal axis;
- a first protrusion that extends radially outward from the hub;
- a latch disposed on the outside surface of the hub, the latch comprising:
- an engaging member on an inside surface of the latch,
- a chamfered edge on a proximal end of the latch, the chamfered edge in operational relationship to the engaging member, and
- the chamfered edge and engaging member configured such that when the hub is moved proximally along the longitudinal axis, the latch is forced into a position where the engaging member couples to an annular groove of the drive unit;
- and
- a cutter defined at a distal end of the outer tube and inner tube.
7 more elements
A method comprising:
- rotationally aligning a cutting implement such that one or more protrusions extending radially outward from a hub of the cutting implement align with at least one of two or more respective notches defined in a distal end of a drive unit, the two or more respective notches extending along a longitudinal axis of the drive unit and radially through the drive unit;
- and then
- telescoping the hub of the cutting implement into an opening at the distal end of the drive unit;
- and simultaneously
- telescoping the one or more protrusions into the at least one of the one of two or more respective notches;
- latching the cutting implement to an annular groove defined on an outside surface of the distal end of the drive unit, the latching by a latch disposed on an outside surface of the hub;
- and
- resecting tissue with the cutting implement and the drive unit.
5 more elements
Dependencies are inferred from the claim text.