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US 7,837,687 B2Granted
Surgical assembly for tissue removal
AssigneeSurgitech, LLC
InventorRichard J. Harp
Life of this patent
Estimating the term…
Abstract
A reciprocating surgical file system for precisely removing bone and/or other tissue is described. The system allows a user to maneuver the system and navigate into hard-to-access sites under a direct vision mechanism. A transmission mechanism converts rotary motion from a motor into reciprocating motion and provides it to the surgical file for precision removal of bone or other tissue. A pulsatile pump mechanism is operatively coupled with the transmission mechanism and provides irrigating fluid to the surgical site.
Claims19
A surgical instrument comprising:
- a distal body configured to attach to a handle assembly, the handle assembly communicating a non-reciprocating rotary input to the distal body when the distal body is attached thereto;
- a transmission that converts the non-reciprocating rotary motion to linear reciprocating motion;
- a blade coupled to said distal body, said blade connected to said transmission so that the linear reciprocating motion is communicated to the blade so that the blade slidably moves in a reciprocating linear manner by the rotary motion emanating from said handle assembly;
- the blade being elongate and having a generally straight proximal portion, a flexible medial portion, and a distal portion configured to remove bone from a mammal through the linear reciprocating motion;
- and
- a generally rigid blade guide adjacent the blade and coupled to the distal body, the blade guide having a bent portion in which the blade guide is curved;
- wherein the blade engages the blade guide so that the medial portion of the blade bends to generally conform to the curve of the blade guide bent portion.
4 more elements
A surgical instrument comprising:
- a distal body configured to attach to a handle assembly;
- a blade coupled to said distal body, said blade configured to be slidably moved in a reciprocating linear manner, and further configured to remove bone from a mammal;
- a transmission interposed between the handle assembly and the blade, the transmission converting a rotary motion emanating from said handle assembly to a linear reciprocating motion, the blade connected to the transmission so as to slidably move in a reciprocating linear manner by the rotary motion emanating from the handle assembly;
- wherein the transmission is a toroidal drive system comprising a cam that has a curvilinear body;
- and
- wherein the curvilinear body has a shape that comprises two partially superimposed toruses.
3 more elements
Dependencies are inferred from the claim text.