摘要:
This system (20) comprises: - at least one vibrational sensor (21) which is operable to produce data each time an impact application device (10) applies an impact to the prosthetic component during assembly between the prosthetic component and with the support member, the produced data representing acoustic vibrations (\ /A ) generated in the air and/or material vibrations generated in the impact application device, - an analysis unit (22) which is configured both to calculate a frequency characterization of the vibrations for each impact applied by the impact application device to the prosthetic component, from the corresponding data produced by the at least one vibrational sensor, and to compare the frequency characterizations that are respectively calculated for successive impacts so as to provide at each of the successive impacts either a first indication when the assembly between the prosthetic component and the support member is not fully seated or a second indication when the assembly between the prosthetic component and the support member is fully seated, and - a user interface (23) which provides feedback based on the first and second indications.
摘要:
An orthopaedic element has an information storage portion. A transmitter portion and an internal power source portion may be associated with the body of the orthopaedic element. Information, such as data related to the orthopaedic element, patient or caregiver can be stored in the information storage portion. The transmitter portion is coupled to the information storage portion and the internal power source portion. The stored information is selectively transmitted to an external receiver and data interpretation device.
摘要:
A medical device for implantation in a hip joint of a patient, the medical device comprising a prosthetic caput femur (819) comprising: a spherical portion adapted to be received in an acetabulum or a prosthetic acetabulum (65) fixated to the pelvic bone (9) of the patient. The medical device further comprises a releasing member (820) adapted to restrain the spherical portion in the acetabulum or the prosthetic acetabulum. The releasing member is further adapted to release the spherical portion from the acetabulum or the prosthetic acetabulum, when a strain, exceeding a predetermined threshold, is exerted on the hip joint, thereby releasing the prosthetic caput femur from the acetabulum or prosthetic acetabulum.
摘要:
A surgical implant, which in use, provides a barrier between layers of tissue such that tissue on one side of the implant does not adhere to tissue on the other side, the implant being made of suitably anatomically shaped surgically acceptable sheet material.
摘要:
A hip joint prosthesis adapted to be implanted in a hip joint of a human patient. The hip joint prosthesis has a length axis extending in a proximal-distal direction when implanted. The hip joint prosthesis comprises a first proximal area and a second distal area, and wherein said first proximal area comprises a first metallic material having a first elasticity and wherein said second distal area comprises a second metallic material having a second elasticity. The first and second metallic materials are connected through net attractive forces, and the first and second metallic materials have different elasticity, such that the difference in elasticity affects the elasticity of the hip joint prosthesis along the length axis thereof.
摘要:
A surgical distraction device is provided for applying extending or tensioning force non-invasively to a patient's skeleton or to an implant which comprises anchoring means for attaching first and second components of the device to a bone or to adjoining bones, said components being connected by a linkage of an extendible length, a magnet connected to the linkage via a reduction gearbox and actuating means located externally of the patient for generating a moving or varying electromagnetic field, thereby causing the magnet to rotate and the linkage to be extended.
摘要:
Hip replacement prosthesis are provided, comprising a femoral stem, a femoral head coupled to the femoral stem, and an acetabular assembly coupled to the femoral head, and a plurality of sensors coupled to at least of the femoral stem, femoral head, and acetabular assembly.
摘要:
A lubrication device for lubricating a joint of a human or mammal patient, which is entirely implantable in a patient's body, comprises a reservoir for storing a lubricating fluid and a fluid connection for introducing the lubricating fluid into the joint when the device is implanted in the patient's body. Further, the fluid connection comprises a fluid connection device connecting the reservoir with the joint such that a lubricating fluid flow is established from the reservoir into the joint. The fluid connection comprises either an infusion needle adapted to be intermittently placed into the joint for injecting the lubricating fluid, or a tube adapted to be permanently placed into the joint for continuously injecting the lubricating fluid.