Methods and devices for trauma welding
First Claim
1. A tissue repair system comprising:
- a polymeric intramedullary rod having an inner core and an outer surface, wherein the outer surface of the intramedullary rod includes a bonding region free of through holes, wherein the inner core is fabricated from a first material and the outer surface is fabricated from a first portion of PEEK;
a fastener having a leading portion and a trailing end opposite the leading portion, the leading portion including a second portion of PEEK, wherein at least a portion of the second portion of PEEK at the leading portion is configured to be ultrasonically bonded to the first portion of PEEK on the bonding region on the outer surface of the intramedullary rod upon application of ultrasonic energy to the trailing end of the fastener; and
an end effector configured to apply the ultrasonic energy to the trailing end of the fastener.
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Abstract
The present invention provides a method for stabilizing a fractured bone. The method includes positioning an elongate rod in the medullary canal of the fractured bone and forming a passageway through the cortex of the bone. The passageway extends from the exterior surface of the bone to the medullary canal of the bone. The method also includes creating a bonding region on the elongate rod. The bonding region is generally aligned with the passageway of the cortex. Furthermore, the method includes positioning a fastener in the passageway of the cortex and on the bonding region of the elongate rod and thermally bonding the fastener to the bonding region of the elongate rod while the fastener is positioned in the passageway of the cortex.
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Citations
15 Claims
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1. A tissue repair system comprising:
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a polymeric intramedullary rod having an inner core and an outer surface, wherein the outer surface of the intramedullary rod includes a bonding region free of through holes, wherein the inner core is fabricated from a first material and the outer surface is fabricated from a first portion of PEEK; a fastener having a leading portion and a trailing end opposite the leading portion, the leading portion including a second portion of PEEK, wherein at least a portion of the second portion of PEEK at the leading portion is configured to be ultrasonically bonded to the first portion of PEEK on the bonding region on the outer surface of the intramedullary rod upon application of ultrasonic energy to the trailing end of the fastener; and an end effector configured to apply the ultrasonic energy to the trailing end of the fastener. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A tissue repair system comprising:
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a polymeric implant having an inner core and an outer surface, wherein the outer surface of the implant includes a bonding region including a first portion of PEEK; a fastener having a leading portion and a trailing end opposite the leading portion, the leading portion including a second portion of PEEK, wherein at least a portion of the second portion of PEEK at the leading portion is configured to radially expand and be ultrasonically bonded to the first portion of PEEK of the bonding region of the outer surface of the polymeric implant upon application of ultrasonic energy to the trailing end of the fastener without the fastener being positioned through the outer surface of the implant; and an end effector configured to apply the ultrasonic energy to the trailing end of the fastener. - View Dependent Claims (14, 15)
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Specification