Abstract:
PROBLEM TO BE SOLVED: To create a device to be implanted in a human or animal patient, the device being an implant or endoprosthesis and comprising at least two parts to be assembled in situ.SOLUTION: An implant or endoprosthesis suitable to be implanted in human or animal tissue comprises two (or more than two) parts to be joined in situ. Each one of the parts comprises a joining location, the two joining locations facing each other when the device parts are positioned for being joined together, wherein one of the joining locations comprises a material which is liquefiable by mechanical vibration and the other one of the joining locations comprises a material which is not liquefiable by mechanical vibration and a structure (e.g., undercut cavities or protrusions) suitable for forming a positive fit connection with the liquefiable material.
Abstract:
PROBLEM TO BE SOLVED: To create a device to be implanted in a human or animal patient while the device is an implant or endoprosthesis having at least two parts to be assembled in situ.SOLUTION: An implant or endoprosthesis suitable to be implanted in human or animal tissue comprises two (or more than two) parts to be joined in situ. Each one of the parts comprises a joining location, the two joining locations facing each other when the device parts are positioned for being joined together, wherein one of the joining locations comprises a material which is liquefiable by mechanical vibration and the other one of the joining locations comprises a material which is not liquefiable by mechanical vibration and a structure (e.g. undercut cavities or protrusions) suitable for forming a positive fit connection.
Abstract:
PROBLEM TO BE SOLVED: To provide a joining element fastened to an opening of an object with the aid of mechanical vibration.SOLUTION: A periphery face of a wall fastening part 3.2 that is positioned between a proximal end 1 and a distal end 2 includes: two or more dents 4.1; and an energy centralization element 4.2 projecting in a radial direction and being between these dents 4.1, includes a tubular part that extends from the wall fastening 3.2 to a distal position between the proximal end 1 and the distal end 2, and includes a thermoplastic material in a periphery face having at least the energy centralization element 4.2 and an edge.
Abstract:
PROBLEM TO BE SOLVED: To create a device to be implanted in a human or animal patient, the device being an implant or endoprosthesis and comprising at least two parts to be assembled in situ.SOLUTION: An implant or endoprosthesis suitable to be implanted in human or animal tissue comprises two (or more than two) parts to be joined in situ. Each one of the parts comprises a joining location, the two joining locations facing each other when the device parts are positioned for being joined together, wherein one of the joining locations comprises a material which is liquefiable by mechanical vibration and the other one of the joining locations comprises a material which is not liquefiable by mechanical vibration and a structure (e.g., undercut cavities or protrusions) suitable for forming a positive fit connection with the liquefiable material.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for anchoring a joining element in an object, and the joining element to be used in the method.SOLUTION: The joining element includes a sealing portion 3.1 and a wall anchoring portion 3.2. The sealing portion 3.1 is substantially cylindrical and has a smooth circumferential surface. The wall anchoring portion 3.2 has a circumferential surface which includes the thermoplastic material and energy directors. A cross section of the sealing portion 3.1 envelops the cross section of the wall anchoring portion and is arranged adjoining to the wall anchoring portion on its proximal side. The joining element is anchored in an opening 5 provided in the object 10, a cross section of the opening corresponds to the cross section of the sealing portion 3.1 of the joining element such that the sealing portion can be forced into a mouth 5.1 of the opening 5 resulting in press fit. For anchoring the joining element in the opening 5, mechanical vibrations e.g. ultrasonic vibrations are coupled into the joining element and the joining element is forced into the opening 5 until at least a distal part of the sealing portion 3.1 is positioned within the opening.