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US 6,723,101 B2Granted
Method of surgically cutting a bone using a surgical saw blade
AssigneeSynvasive Technology, Inc.
InventorsHenry Hasbrouck Fletcher, Michael Gerard Fisher
Life of this patent
Estimating the term…
Abstract
A cutting saw blade for use with an oscillatory power tool used in surgical bone cutting procedures including a blade having a distal end provided with teeth whose tips are located on a tangent line perpendicular to the long axis of the blade. The teeth are configured substantially as right triangles with their hypotenuses facing either towards the center of the blade or away from the center of the blade. A central tooth can be optionally provided.
Claims22
A method for the surgical cutting of bone, the steps including,
- contacting the bone with an oscillatory cutter having a blade with teeth such that, only initially, a multiplicity of different teeth contact the bone substantially simultaneously, thereby forming a somewhat linear kerf,
- thereafter, forming the kerf substantially V-shaped by having each tooth alternately and sequentially contacting the kerf.
A method for surgically cutting of bone comprising the steps of
- contacting the bone with a surgical saw blade having a proximal end configured to couple to a surgical bone saw, a distal end having a plurality of substantially identical teeth for cutting bone wherein each of the plurality of substantially identically shaped teeth are shaped substantially as right triangles including a hypotenuse and an angle opposite the hypotenuse, wherein each hypotenuse is oriented at least one of towards and away from the centrally positioned long axis and wherein each of the plurality of substantially identical teeth end in a tip distally and a centrally positioned long axis between the proximal end and the distal end and wherein the tips are arrayed on a line substantially perpendicular to the centrally positioned long axis;
- and
- cutting the bone with the plurality of substantially identical teeth to form a predetermined cut in the bone.
A method for surgically cutting of bone comprising the steps of
- contacting the bone with a surgical saw blade having a proximal end configured to couple to a surgical bone saw, a distal end having substantially identical teeth for cutting bone wherein each of the plurality of teeth end in a tip distally and a centrally positioned long axis between the proximal end and the cutting teeth ending in the distal tip are configured to be placed substantially on a tangent which is perpendicular to a radial line extending from the center line of the power tool cutting axis that bisects the arc of travel within which the blades travels such that said teeth contact the bone to be cut thereby to provide better tracking of said surgical saw blade when forming a kerf in the bone, whereupon said teeth cut both progressively and sequentially as the kerf begins to form to provide faster aggressive cutting and efficient chip removal;
- and
- cutting the bone with the plurality of teeth to form a predetermined cut in the bone.
A method for surgically cutting of bone comprising the steps of
- contacting the bone with an oscillatory or sagittal bone saw having a surgical saw blade operatively coupled thereto and the surgical saw blade has a proximal end configured to couple to a surgical bone saw and a distal end having an even number of substantially identically shaped teeth for cutting bone wherein each of the plurality of teeth ending in a tip distally and a centrally positioned long axis between the proximal end and the distal end and wherein each of the plurality of teeth are substantially identically shaped substantially as right triangles including a hypotenuse and an angle opposite the hypotenuse, wherein each hypotenuse is oriented at least one of towards and away from the centrally positioned long axis, and wherein the tips are arrayed substantially on a tangent perpendicular to the centrally positioned long axis;
- and
- cutting the bone with the plurality of teeth to form a predetermined cut in the bone.
A method of cutting bone comprising the steps of:
- providing a surgical saw blade having a proximal end configured to couple to a surgical bone saw and a distal end having an even number of substantially identically shaped teeth for cutting bone wherein each of the plurality of teeth ending in a tip distally and a centrally positioned long axis between the proximal end and the distal end and wherein each of the plurality of teeth are substantially identically shaped substantially as right triangles including a hypotenuse and an angle opposite the hypotenuse and wherein each hypotenuse is oriented at least one of toward and away from the centrally positioned long axis, and
- wherein the tips are arrayed substantially on a tangent perpendicular to the centrally positioned long axis;
- operatively coupling the surgical saw blade to a surgical saw;
- actuating the surgical saw with the operatively coupled surgical saw blade;
- and
- cutting the bone to form a predetermined cutting pattern therein.
3 more elements
A method of cutting bone comprising the steps of:
- providing a surgical saw blade having a proximal end configured to couple to a surgical bone saw and a distal end wherein said saw blade has a centrally positioned axis extending between the proximal end and distal end and wherein said distal end has a plurality of teeth for cutting bone wherein each of the plurality of teeth are substantially identical shaped substantially as right triangles including a hypotenuse and an angle opposite the hypotenuse and wherein at least one pair of said teeth are configured to be adjacent to each other and to have one of the pair of teeth with a hypotenuse which is oriented at least one of towards and away from the centrally positioned axis and the other of said pair of teeth wherein the hypotenuse is oriented in a direction opposite to said one of the pair of teeth and wherein the tips are arrayed substantially on a tangent perpendicular to the centrally positioned axis;
- operatively coupling the surgical saw blade to a surgical saw;
- actuating the surgical saw with the operatively coupled surgical saw blade;
- and
- cutting the bone to form a predetermined cutting pattern therein.
2 more elements
Dependencies are inferred from the claim text.