Method of forming barbs on a suture and apparatus for performing same
AssigneeQuill Medical, Inc.
InventorsPerry A. Genova, Robert C. Williams, III, Warren Jewett, Matthew A. Megaro
Life of this patent
Estimating the term…
Abstract
A method of making a barbed suture by varying the blade geometry and/or the movement of the blade when cutting a suture is disclosed. The method can also be accomplished with a cutting device to create a plurality of barbs on the exterior of surgical suture. The barbs produced using the method with the cutting device can be the same or random configurations.
Claims52
A method of cutting barbs on a suture having a longitudinal axis, said method comprising the steps of:
- providing a suture having a lateral x-axis, a forward y-axis, and a downward z-axis;
- providing a cutting blade;
- creating a barb on said suture by the motion of the blade which takes into account a cutting action by the blade on the suture in three dimensions along the x-y-z axes of the suture caused by blade geometry in conjunction with blade motion, with the blade having motion at least along the x-axis;
- and
- providing a means for moving the blade to cause said cutting action to create the barb;
- wherein the blade motion and blade geometry each cause the cutting in at least one of the x-, y-, and z-axes.
A method of cutting barbs on a suture having a longitudinal axis, said method comprising the steps of:
- providing a suture having a lateral x-axis, a forward y-axis, and a downward z-axis;
- providing a cutting blade, wherein said cutting blade is selected from the group consisting of an articulating blade, a reciprocating blade, a rotating blade, and a hollow ground blade;
- twisting said suture along the y-axis prior to cutting;
- creating a barb on said suture by the motion of the blade which takes into account a cutting action by the blade on the suture in three dimensions along the x-y-z axes of the suture caused by blade geometry in conjunction with blade motion;
- and
- providing a means for moving the blade to cause said cutting action to create the barb.
A method of cutting barbs on a suture having a longitudinal axis, said method comprising the steps of:
- providing a suture having a lateral x-axis, a forward y-axis, and a downward z-axis;
- providing a cutting blade;
- twisting said suture along the y-axis prior to cutting;
- providing a cutting template for directing the motion of the blade;
- creating a barb on said suture by the motion of the blade which takes into account a cutting action by the blade on the suture in three dimensions along the x-y-z axes of the suture caused by blade geometry in conjunction with blade motion;
- and
- providing a means for moving the blade to cause said cutting action to create the barb.
A method of cutting barbs on a suture having a longitudinal axis, said method comprising the steps of:
- providing a suture having a lateral x-axis, a forward y-axis, and a downward z-axis;
- providing a cutting blade;
- twisting said suture along the y-axis prior to cutting;
- creating a barb on said suture by the motion of the blade which takes into account a cutting action by the blade on the suture in three dimensions along the x-y-z axes of the suture caused by blade geometry in conjunction with blade motion;
- and
- providing a solenoid operatively connected to the blade for moving the blade to cause said cutting action to create the barb.
A method of cutting a barb on a suture, said method comprising the steps of:
- providing a suture having a longitudinal axis;
- twisting said suture along its longitudinal axis;
- providing a cutting blade, wherein said cutting blade is selected from the group consisting of an articulating blade, a reciprocating blade, a rotating blade, and a hollow ground blade;
- and
- cutting a barb with said blade on said suture when in its twisted state.
A method of cutting a barb on a suture, said method comprising the steps of:
- providing a suture having a longitudinal axis;
- twisting said suture along its longitudinal axis;
- providing a cutting blade;
- providing a cutting template for directing the motion of the blade;
- and
- cutting a barb with said blade on said suture when in its twisted state.
A method of cutting a barb on a suture, said method comprising the steps of:
- providing a suture having a longitudinal axis;
- twisting said suture along its longitudinal axis;
- providing a cutting blade;
- providing a solenoid operatively connected to the blade for moving the blade;
- and
- cutting a barb with said blade on said suture when in its twisted state.
A twist-cut spiral barbed suture made by a process comprising the steps of:
- providing a suture having x-y-z axes;
- providing a cutting blade;
- twisting said suture along the y-axis prior to cutting;
- creating a barb on said suture by the motion of the blade which takes into account a cutting action by the blade on the suture in three dimensions along the x-y-z axes of the suture caused by blade geometry in conjunction with blade motion;
- and
- providing a means for moving the blade to cause said cutting action to create the barb.
A twist-cut spiral barbed suture made by a process comprising the steps of:
- providing a suture having a longitudinal axis;
- twisting said suture along its longitudinal axis;
- and
- cutting a barb on said suture when in its twisted state.
A twist-cut spiral barbed suture having a longitudinal axis and made by a process comprising the steps of:
- providing a suture:
- providing a cutting blade;
- twisting said suture along its longitudinal axis prior to cutting;
- creating a barb on said suture by the motion of the blade which takes into account a cutting action by the blade on the suture in three dimensions along x-y-z axes of the suture;
- and
- providing a means for moving the blade to cause said cutting action to create the barb,
- wherein the motion of the blade causes cutting along the x-y-z axes.
Dependencies are inferred from the claim text.