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US 2003/0212401 A1Published application
Surgical cutter with modular blades
AssigneeSymmetry Medical, Inc.
InventorMark Nordman
Life of this patent
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AssigneeSymmetry Medical, Inc.
InventorMark Nordman
Estimating the term…
A surgical cutter for use as an orthopedic reamer includes a shaft, a head, a modular blade member and a threaded retainer member. The shaft has a shaft end and a shaft bore located in the shaft end, at least a portion of the shaft bore being threaded. The head is coupled with the shaft proximate the shaft end, the head being configured for retaining debris The modular blade member is mounted on the head, the modular blade having a primary blade surface and at least one blade tooth extending from the primary blade surface The primary blade surface is substantially planar, and the modular blade member further has a centrally located blade mounting hole therein. The threaded retainer member extends through the blade mounting hole and operatively mating with the shaft bore, and the threaded retainer member further includes a retainer edge at a distal end thereof. The retainer edge is biased against the primary blade surface proximate the blade mounting hole.
A surgical cutter for use as an orthopedic reamer, said surgical cutter comprising:
3 A surgical cutter for use as an orthopedic reamer, said surgical cutter comprising:
The surgical cutter of claim 3, wherein each said blade tooth has a maximum tooth height relative to said primary blade surface, said retainer edge extending above said primary blade surface a maximum distance of no more than approximately 0.03 inches in excess of said maximum tooth height.
The surgical cutter of claim 3, wherein said head includes a debris retaining wall member, said debris retaining wall member being a substantially cylindrical.
8 The surgical cutter of claim 3, wherein said primary blade surface has at least one blade hole therein, each said blade tooth having one said blade hole corresponding thereto.
The surgical cutter of claim 8, wherein each said blade hole and said blade tooth corresponding thereto together form a D-shape
10 The surgical cutter of claim 8, further comprising a plurality of said blade holes, said blade holes being distributed in a generally spiral pattern across said primary blade surface.
The surgical cutter of claim 3, wherein said retainer edge has an edge diameter, said blade mounting hole having a mounting, hole diameter, said edge diameter being greater than said mounting hole diameter.
The surgical cutter of claim 3, wherein said threaded retainer member has a central retainer bore therein, said retainer edge having a pair of diametrically opposed edge slots therein, said retainer bore and said pair of edge slots conjunctively configured for operatively receiving a driver tool therein, said driver tool being configured for releasably driving said threaded retainer member into said shaft bore
13 A method of assembling a surgical cutter, said method comprising the steps of:
The method of claim 13, wherein said threaded retainer member has a central retainer bore therein, said retainer edge having at least one edge slot therein, said method further including the step of providing a driver tool, said driver tool including a tool post, said tool post having at least one tool tab thereon, said tool post being configured for insertion into said retainer bore of said threaded retainer member, each said tool tab being configured for operatively engaging in a respective said edge slot of said retainer edge, said extending step and said engaging step combined including the substeps of:
Dependencies are inferred from the claim text.