Sensing force during partial and total knee replacement surgery

Details Sensing force during partial and total knee replacement surgery Sensing force during partial and total knee replacement surgery

A - Human Necessities

61

B

A61B 5/103 (2006.01) A61F 2/30 (2006.01) A61F 2/38 (2006.01)

Patent

CA 2734293

Systems, devices, and methods are provided for measuring forces in the space of a knee during surgery. Such forces can be caused by tension in the ligaments of the knee. A femoral member is engaged with a distal femur. While the knee is flexed, partially extended, or fully extended, a force sensor and a gauge shim can be placed in the gap between the femoral member and the tibial plateau to measure the forces therebetween. The force sensor provides an accurate and quantifiable measurement of force, making knee replacement surgery and ligament tension balancing more accurate, standardized and repeatable. The force sensor comprises an elongate housing which comprises a thin force sensing distal portion and a proximal handle portion.

L'invention concerne des systèmes, des dispositifs et des procédés pour mesurer des forces dans l'espace d'un genou pendant lintervention. De telles forces peuvent être provoquées par une tension dans les ligaments du genou. Un élément fémoral est mis en prise avec un fémur distal. Tandis que le genou est fléchi, partiellement étendu ou complètement étendu, un capteur de force et une cale de jauge peuvent être placés dans l'espace situé entre l'élément fémoral et le plateau tibial, pour mesurer les forces entre ceux-ci. Le capteur de force fournit une mesure de force précise et quantifiable, rendant ainsi lintervention chirurgicale de remplacement du genou et l'équilibrage de tension ligamentaire plus précis, standardisés et reproductibles. Le capteur de force comporte un boîtier allongé qui comporte une mince partie distale de détection de force et une partie de poignée proximale.

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