公开(公告)号：US20180147016A1

公开(公告)日：2018-05-31

申请号：US15881288

申请日：2018-01-26

Applicant: ORTHOSOFT INC.

Inventor： Myriam VALIN ,  Catherine PROULX ,  Louis-Philippe AMIOT ,  Bruno FALARDEAU ,  Julie DESLONGCHAMPS

IPC: A61B34/20

CPC classification number: A61B34/20 ,  A61B2034/2048

Abstract: A system for tracking a femoral frame of reference in computer-assisted surgery comprises a sensor unit. The sensor unit is adapted to be secured to the femur. The sensor unit comprises accelerometer and gyroscope sensors that produce orientation data. A processing unit receives gyroscope and accelerometer data. The processing unit comprises a gyroscope-data calculator to provide calculated acceleration data resulting from movements of the femur, an accelerometer-data calculator to calculate measured acceleration data resulting from movements of the femur, and an acceleration comparator to relate an orientation of the sensor unit to the femur to define a femoral frame of reference. The femoral frame of reference is defined from the comparison between the calculated and the measured acceleration data. A sensor orientation interface provides orientation data for the femur from a tracking of the femoral frame of reference. A method for tracking a femoral frame of reference is also provided.

公开(公告)号：US20160220385A1

公开(公告)日：2016-08-04

申请号：US15013402

申请日：2016-02-02

Applicant: ORTHOSOFT INC.

Inventor： Bruno FALARDEAU ,  Karine DUVAL ,  Laurence MOREAU-BELANGER ,  Francois PARADIS ,  Di LI ,  Myriam VALIN ,  Benoit PELLETIER

IPC: A61F2/46 ,  A61F2/34

CPC classification number: A61F2/4609 ,  A61B2034/2048 ,  A61F2002/4681 ,  A61F2002/4687

Abstract: An impactor for positioning and inserting an acetabular cup into an acetabulum of a pelvis during hip arthroplasty is described. The impactor includes a guide element mounted to an elongated body and including first and second openings aligned with each other to define an axial passage. The first and second openings and the axial passage receive a guide pin therethrough that is pinned in a fixed position to the pelvis. The guide element provides a mechanical orientation guide which restricts an angular orientation of the impactor relative to the guide pin when the guide pin is pinned in the fixed position relative to the pelvis and received through the first and second openings of the guide element. Centering the openings of the guide element relative to the guide pin in the fixed position accordingly achieves a desired orientation of the impactor within a predetermined angular tolerance.

Abstract translation: 描述了一种用于在髋关节置换术期间将髋臼杯定位和插入骨盆髋臼的冲击器。 冲击器包括安装到细长主体并包括彼此对准以限定轴向通道的第一和第二开口的引导元件。 第一和第二开口和轴向通道容纳穿过其中的引导销固定在骨盆的固定位置。 引导元件提供了一种机械定向引导件，当引导销相对于骨盆被固定在固定位置并且通过引导元件的第一和第二开口被接收时，限制冲击器相对于引导销的角度定向。 引导元件相对于引导销的开口定位在固定位置，从而在冲击器的预定角度公差内达到期望的取向。

公开(公告)号：US20180250144A1

公开(公告)日：2018-09-06

申请号：US15968868

申请日：2018-05-02

Applicant: ORTHOSOFT INC.

Inventor： Di LI ,  Louis-Philippe AMIOT ,  Herbert Andre JANSEN ,  Francois PARADIS ,  Isabelle ROBITAILLE ,  Bruno FALARDEAU ,  Karine DUVAL ,  Myriam VALIN ,  Yvan LEONE ,  Yonik BRETON ,  Benoit PELLETIER ,  Mathieu CHEVRIER ,  Jerome CASAUBON

IPC: A61F2/46 ,  A61B90/13 ,  A61B34/10 ,  A61B34/20

CPC classification number: A61F2/4609 ,  A61B90/13 ,  A61B2034/104 ,  A61B2034/2048 ,  A61F2002/4623 ,  A61F2002/4687

Abstract: A method for assisting in positioning the acetabular cup comprises orienting a cup positioning instrument with a cup thereon in an initial reference orientation relative to an acetabulum of a pelvis with the cup forming a joint with the acetabulum, the cup positioning instrument comprising an inertial sensor unit with pre-planned orientation data for a desired cup orientation based on at least one landmark of the pelvis, The cup positioning instrument is rotated to a desired abduction angle as guided by an interface of the cup positioning instrument, based on movements relative to at least one landmark. The cup positioning instrument is rotated to a desired anteversion angle as guided by the interface of the cup positioning instrument, based on movements relative to the at least one landmark. Upon reaching the desired cup orientation as indicated by the interface, the cup is impacted into the acetabulum.

公开(公告)号：US20180085171A1

公开(公告)日：2018-03-29

申请号：US15720531

申请日：2017-09-29

Applicant: ORTHOSOFT, INC.

Inventor： Bruno FALARDEAU ,  Catherine PROULX ,  Herbert Andre JANSEN ,  Benoit PELLETIER ,  Jonathan Tardif

IPC: A61B34/10 ,  A61B34/00

CPC classification number: A61B34/10 ,  A61B34/20 ,  A61B34/25 ,  A61B34/70 ,  A61B2034/2048 ,  A61B2034/2055 ,  A61B2090/061 ,  A61B2090/3983 ,  A61B2090/3991

Abstract: A computer-assisted surgery system for obtaining a distance between at least two fixed points relative to a bone comprises a first accelerometer unit located at a first fixed location on the bone, and producing first acceleration data during a movement of the bone. A second accelerometer unit is located at a second fixed location on the bone, and simultaneously producing second acceleration data during the movement. A gyroscope unit is fixed to the bone and simultaneously producing angular rates of change of said movement. A processor unit obtains the acceleration data and the angular rates of change for calculating the distance between the first fixed position and the second fixed position on the bone using a distance value of a distance vector between the accelerometer units. An interface outputs the distance between the first fixed position and the second fixed position relative to the bone. A method for calculating a distance between at least two points on a bone is provided.

公开(公告)号：US20170112508A1

公开(公告)日：2017-04-27

申请号：US15345776

申请日：2016-11-08

Applicant: ORTHOSOFT INC.

Inventor： Francois PARADIS ,  Louis-Philippe AMIOT ,  Bruno FALARDEAU ,  Herbert Andre JANSEN

IPC: A61B17/17 ,  A61B34/20 ,  A61B34/10 ,  A61B6/00 ,  A61B90/00

CPC classification number: A61B17/175 ,  A61B6/505 ,  A61B17/15 ,  A61B34/10 ,  A61B34/20 ,  A61B90/36 ,  A61B2034/102 ,  A61B2034/105 ,  A61B2034/108 ,  A61B2034/2068 ,  A61B2034/252 ,  A61F2/32 ,  A61F2/34 ,  A61F2/3603 ,  A61F2/4607 ,  A61F2/4609 ,  A61F2002/4632

Abstract: A hip resurfacing CAS system for guiding an operator in altering a femoral head in computer-assisted surgery for subsequent implanting of a femoral head implant, comprises a trackable reference on the femur. A registration tool is trackable. A bone-altering tool is associated with a resurfacing of the femoral head. A tracking apparatus tracks the tools. A resurfacing processing unit is connected to the tracking apparatus so as to receive tracking data for the tools. The resurfacing processing unit has a position/orientation calculator to calculate from the tracking data a position and orientation of the trackable reference to track the femoral frame of reference, and of the registration tool and the bone-altering tool. A model generator receives position and orientation data of the registration tool to produce a model of the femoral head and neck with respect to the femoral frame of reference. A resurfacing evaluator determines an evaluated bone resurfacing alteration as a function of a position and/or orientation of the bone-altering tool with respect to the bone model of the femoral head and neck, and a tool geometry model, at least prior to resurfacing being performed.