公开(公告)号：US07826813B2

公开(公告)日：2010-11-02

申请号：US11951661

申请日：2007-12-06

Applicant: Jean-Louis Laroche

Inventor： Jean-Louis Laroche

IPC: H04B1/06

CPC classification number: H04B17/364

Abstract: There present description is directed to a method and a system for determining a time delay between a transmission and a reception of an RF signal in a noisy environment. The method comprises: transmitting the RF signal according to a transmit frequency pattern, the transmit frequency pattern comprising at least three pulses separated by a period of time, each one of the at least three pulses respectively being at each one of at least three different frequencies; receiving a received RF signal comprising the at least three pulses at the at least three different frequencies, each one of the at least three different frequencies associated to a receive phase change; comparing the receive phase change of one of the at least three different frequencies with the receive phase change of another one of the at least three different frequencies to obtain a dispersion phase difference; and calculating the time delay using the obtained dispersion phase difference.

Abstract translation: 现在描述涉及用于在嘈杂环境中确定RF信号的发送和接收之间的时间延迟的方法和系统。 该方法包括：根据发射频率模式发送RF信号，所述发射频率模式包括至少三个脉冲间隔一段时间，所述至少三个脉冲中的每一个分别处于至少三个不同频率中的每一个 ; 在所述至少三个不同频率处接收包括所述至少三个脉冲的接收RF信号，所述至少三个不同频率中的每一个与接收相位变化相关联; 将所述至少三个不同频率中的一个的接收相位变化与所述至少三个不同频率中的另一个频率的接收相位变化进行比较以获得色散相位差; 以及使用所获得的色散相位差计算所述时间延迟。

公开(公告)号：US07427272B2

公开(公告)日：2008-09-23

申请号：US10618846

申请日：2003-07-15

Applicant: Alain Richard ,  Herbert André Jansen ,  Eric Brosseau

Inventor： Alain Richard ,  Herbert André Jansen ,  Eric Brosseau

IPC: A61B5/103

CPC classification number: A61B5/103 ,  A61B5/1127 ,  A61B5/4504 ,  A61B17/154 ,  A61B34/20 ,  A61B34/25 ,  A61B90/36 ,  A61B2034/105 ,  A61B2034/2055 ,  A61B2034/2068 ,  A61B2034/2072 ,  A61F2/46 ,  A61F2/4657

Abstract: There is described a method for determining a mechanical axis of a femur using a computer aided surgery system having an output device for displaying said mechanical axis, the method comprising: providing a position sensing system having a tracking device capable of registering instantaneous position readings and attaching the tracking device to the femur; locating a center of a femoral head of the femur by moving a proximal end of the femur to a first static position, acquiring a fixed reading of the first static position, repeating the moving and the acquiring for a plurality of static positions; and locating the centre by determining a central point of a pattern formed by the plurality of static positions; digitizing an entrance point of the mechanical axis at a substantially central position of the proximal end of the femur; and joining a line between the entrance point and the center of rotation to form the mechanical axis.

Abstract translation: 描述了一种使用具有用于显示所述机械轴的输出装置的计算机辅助手术系统来确定股骨的机械轴的方法，所述方法包括：提供具有能够记录瞬时位置读数和附着的跟踪装置的位置感测系统 跟踪装置到股骨; 通过将股骨的近端移动到第一静态位置来定位股骨的股骨头的中心，获取第一静态位置的固定读数，重复多个静态位置的移动和获取; 以及通过确定由所述多个静态位置形成的图案的中心点来定位所述中心; 将机械轴的入口点在股骨近端的基本中心位置进行数字化; 并且在入口点和旋转中心之间连接线以形成机械轴。

公开(公告)号：US07412777B2

公开(公告)日：2008-08-19

申请号：US11434786

申请日：2006-05-17

Applicant: Benoit Pelletier ,  Sébastien Jutras ,  Bruno Falardeau ,  Mathieu Légaré

Inventor： Benoit Pelletier ,  Sébastien Jutras ,  Bruno Falardeau ,  Mathieu Légaré

IPC: G01B5/20

CPC classification number: G01B21/042 ,  A61B34/20 ,  A61B90/36 ,  A61B2017/00725 ,  A61B2034/2055 ,  A61B2034/2068 ,  A61B2090/061

Abstract: A method of determining a center of curvature of the spherical outer surface of an object using a computer system is provided. The method includes defining at least one contact region on the spherical outer surface in a plane substantially tangential to a circumference thereof and a first reference axis normal to said plane. Spatial coordinates of at least one of a first and a second geometric parameter are determined, the first geometric parameter including at least two points located on the spherical outer surface and the second geometric parameter including a second reference axis normal to the spherical outer surface. The center of curvature of the spherical outer surface is then calculated using the first reference axis and at least one of the first and second geometric parameters. An associated system and calibration device is also provided.

Abstract translation: 提供了一种使用计算机系统确定物体的球形外表面的曲率中心的方法。 该方法包括在基本上与其圆周相切的平面中的球面外表面上限定至少一个接触区域和垂直于所述平面的第一参考轴。 确定第一和第二几何参数中的至少一个的空间坐标，所述第一几何参数包括位于所述球形外表面上的至少两个点，所述第二几何参数包括垂直于所述球形外表面的第二参考轴。 然后使用第一参考轴和第一和第二几何参数中的至少一个来计算球形外表面的曲率中心。 还提供了相关联的系统和校准装置。

公开(公告)号：US20040068179A1

公开(公告)日：2004-04-08

申请号：US10263772

申请日：2002-10-04

Applicant: ORTHOSOFT INC.

Inventor： Sebastien Jutras ,  Herbert Jansen ,  Louis-Philippe Amiot

IPC: A61B005/05

CPC classification number: A61B90/36 ,  A61B34/20 ,  A61B90/10 ,  A61B2017/00473 ,  A61B2034/105 ,  A61B2034/2055 ,  A61B2034/2065 ,  A61B2034/2068 ,  A61B2034/256 ,  A61B2090/062 ,  A61B2090/3983

Abstract: A registration pointer for registering points of surfaces of bodily elements in computer-assisted surgery, comprising a handle for being manipulated by a pointer operator. A stem is connected to the handle and has a first and a second tip configurations each having a respective use relating to a registration of points on specified bodily elements. A detectable device is secured to the stem, and is adapted to be tracked in space for position and orientation by a sensing apparatus. A position of the tip configurations with respect to the detectable device is determinable such that a position of the tip configurations is calculable as a function of the position and orientation of the detectable device. The tip configurations are chosen to register points on given bodily elements as a function of the respective use, by recording a position of points of contact between the tip configurations and the given bodily element.

Abstract translation: 一种用于在计算机辅助手术中记录身体元件的表面点的注册指针，包括由指针操作器操纵的手柄。 杆连接到手柄并且具有第一和第二尖端配置，每个顶端配置具有与指定的身体元件上的点的对准相关的使用。 可检测装置被固定到杆上，并且适于在空间中跟踪通过感测装置的位置和取向。 相对于可检测装置的尖端构造的位置是可确定的，使得尖端构造的位置可以作为可检测装置的位置和取向的函数计算。 通过记录尖端构造与给定身体元件之间的接触点的位置，选择尖端配置作为相应使用的函数来记录给定身体元件上的点。

公开(公告)号：US20040019263A1

公开(公告)日：2004-01-29

申请号：US10202609

申请日：2002-07-25

Applicant: ORTHOsoft INC.

Inventor： Sebastien Jutras ,  Dominic Picard ,  Pierre Couture ,  Francois Poulin ,  Louis-Philippe Amiot ,  James Anglehart

IPC: A61B005/05

CPC classification number: A61B34/20 ,  A61B17/1757 ,  A61B90/39 ,  A61B2034/105 ,  A61B2034/2055 ,  A61B2090/3983

Abstract: A surgical device adapted for use with an image guided surgical system to facilitate monitoring inter-dependently mobile bone elements. A rigidly connected multiple-point anchor assembly is releasably engageable to at least two inter-dependently mobile bone elements and immobilizes the bone elements such that no relative movement therebetween is possible, and a complex rigid body comprising the immobilized bone elements and the multiple-point anchor assembly is formed. A trackable member is fastened to the multiple-point anchor assembly and comprises a detectable element adapted to be located and tracked in three dimensional space by the image guided surgical system, thereby defining position and movement of the complex rigid body.

Abstract translation: 适于与图像引导的手术系统一起使用以便于监测相互依赖的移动骨骼元件的外科装置。 刚性连接的多点锚固组件可释放地接合到至少两个相互依赖的可移动骨元件并固定骨元件，使得它们之间不存在相对移动，并且包括固定的骨元件和多点 锚固组件形成。 可跟踪构件被紧固到多点锚固组件并且包括适于通过图像引导的手术系统在三维空间中定位和跟踪的可检测元件，从而限定复合刚体的位置和运动。

公开(公告)号：US11090170B2

公开(公告)日：2021-08-17

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

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：US10881470B2

公开(公告)日：2021-01-05

申请号：US15013507

申请日：2016-02-02

Applicant: ORTHOSOFT INC.

Inventor： Bruno Falardeau ,  Karine Duval ,  Yvan Leone ,  Francois Paradis ,  Di Li ,  Myriam Valin ,  Benoit Pelletier ,  Laurence Moreau-Belanger

IPC: A61B34/30 ,  A61B34/10 ,  A61B34/00 ,  A61B34/20 ,  A61B17/16

Abstract: A computer-assisted surgery (CAS) system comprises a cup implanting device including a shaft having a tooling end and a handle end with a handle for being manipulated, the shaft having a longitudinal axis, the tooling end adapted to support a cup for being received in an acetabulum of a patient, and a rotation indicator having a visual guide representative of a device plane, wherein the device plane is in a known position and orientation relative to a center of the cup on the tooling end. A CAS processing unit includes at least one inertial sensor unit connected to the cup implanting device, the inertial sensor unit outputting three-axes readings and having a virtual preset orientation related to a reference axis of a pelvis of the patient, the virtual preset orientation being based on pre-operative imaging specific to the pelvis of the patient, the reference axis of the pelvis passing through a center of rotation of said acetabulum of the pelvis and through a reference landmark of the pelvis, wherein an instant three-axis orientation of the longitudinal axis of the cup implanting device is trigonometrically known relatively to the reference axis when the cup is in the acetabulum of the patient and the device plane passes through the reference landmark via the visual guide, the instant three-axis orientation used for calibrating the inertial sensor unit on the cup implanting device relative to the pelvis.

公开(公告)号：US09918658B2

公开(公告)日：2018-03-20

申请号：US15412739

申请日：2017-01-23

Applicant: ZIMMER, INC.

Inventor： Jeffrey A. McCaulley ,  Louis-Philippe Amiot

IPC: A61B5/06

CPC classification number: A61B5/06 ,  A61B5/1114 ,  A61B5/6878 ,  A61B6/032 ,  A61B6/505 ,  A61B17/15 ,  A61B34/20 ,  A61B2034/102 ,  A61B2034/105 ,  A61B2034/108 ,  A61B2034/2048 ,  A61B2505/05 ,  G06F19/00 ,  G16H50/50

Abstract: An assembly of a patient specific instrument and tracking system comprises a patient specific instrument having a body with a patient specific contact surface negatively shaped relative to a corresponding surface of a bone for complementary contact therewith. An inertial sensor unit with a preset orientation is connected to the body in a planned connection configuration, such that a geometrical relation between the contact surface and the inertial sensor unit is known. A tracking system has a tracking processor connected to the inertial sensor unit, a user interface, and bone orientation data related to the patient specific contact surface, the tracking processor producing orientation tracking data for the bone using the geometrical relation and the bone orientation data when the preset orientation of the inertial sensor unit is initialized, to output the orientation tracking data on the user interface.

公开(公告)号：US09901405B2

公开(公告)日：2018-02-27

申请号：US12843375

申请日：2010-07-26

Applicant: Myriam Valin ,  Catherine Proulx ,  Louis-Philippe Amiot ,  Bruno Falardeau ,  Julie Deslongchamps

Inventor： Myriam Valin ,  Catherine Proulx ,  Louis-Philippe Amiot ,  Bruno Falardeau ,  Julie Deslongchamps

IPC: A61B5/103 ,  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：US09839533B2

公开(公告)日：2017-12-12

申请号：US15400426

申请日：2017-01-06

Applicant: ORTHOSOFT INC.

Inventor： Trong Tin Nguyen ,  Pierre Couture

IPC: A61F2/46 ,  A61B5/107 ,  A61F2/38 ,  A61B5/00 ,  A61B34/10 ,  A61B90/00 ,  A61B34/20

CPC classification number: A61F2/4657 ,  A61B5/1071 ,  A61B5/1079 ,  A61B5/4528 ,  A61B5/4585 ,  A61B5/4851 ,  A61B5/6878 ,  A61B17/1764 ,  A61B34/10 ,  A61B90/06 ,  A61B90/37 ,  A61B2034/2048 ,  A61B2034/2068 ,  A61B2090/067 ,  A61B2090/373 ,  A61B2562/0219 ,  A61B2562/028 ,  A61F2/38 ,  A61F2/4684 ,  A61F2002/4668

Abstract: The disclosed device for verifying a hip-knee-ankle angle includes a mounting base having a planar abutting surface adapted for direct abutting against a resected surface on a distal femur, and a first inertial sensor in communication with a computer assisted surgery (CAS) system to determine an orientation of the mounting base and to digitize a mechanical axis of the femur. A visual alignment guide element is pivotably mounted to the mounting base such that the angular position of the visual alignment guide element is adjustable so as to be visually aligned with a mechanical axis of a tibia. A difference between orientations of the mounting base and the visual alignment guide is calculated by the computer assisted surgery system to determine the hip-knee-ankle angle.