Method of forming barbs on a suture and apparatus for performing same
First Claim
Patent Images
1. 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.
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Accused Products
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.
230 Citations
52 Claims
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1. A method of cutting barbs on a suture having a longitudinal axis, said method comprising the steps of:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of cutting barbs on a suture having a longitudinal axis, said method comprising the steps of:
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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. - View Dependent Claims (22)
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23. A method of cutting barbs on a suture having a longitudinal axis, said method comprising the steps of:
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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.
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24. A method of cutting barbs on a suture having a longitudinal axis, said method comprising the steps of:
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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. - View Dependent Claims (25, 26)
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27. A method of cutting a barb on a suture, said method comprising the steps of:
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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. - View Dependent Claims (28)
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29. A method of cutting a barb on a suture, said method comprising the steps of:
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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.
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30. A method of cutting a barb on a suture, said method comprising the steps of:
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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. - View Dependent Claims (31, 32)
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33. A twist-cut spiral barbed suture made by a process comprising the steps of:
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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. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A twist-cut spiral barbed suture made by a process comprising the steps of:
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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. - View Dependent Claims (48, 49)
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50. A twist-cut spiral barbed suture having a longitudinal axis and made by a process comprising the steps of:
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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. - View Dependent Claims (51, 52)
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Specification