Orthosoft Ulc

Zimmer Gmbh

Orthosoft, Inc.

Emily Gogarty

Pierre Couture

Olivier Boisvert

Jean-Sebastien Merette

Di Li

Benoit Pelletier

Suntara Ly

Louis-Philippe Amiot

Brian M May

Alain Richard

Sebastien Parratte

Vincent Masse

Harlan Levine

Dugal James

Marc-Antoine Dufour

Adam H Sanford

Emmanuelle Bouvier

Benoît Pelletier

Jean-Sébastien Merette

Yann Facchinello

Vincent Pelletier

Frederique DesbiensBlais

Jess H Lonner

William Hartman

Sebastian Parrette

Frederique Desbiens Blais

A method of positioning posterior resection guides in a three-dimensional coordinate system using robotic arms to perform partial knee arthroplasties comprises connecting a first tracking device for a surgical tracking system of the robotic arm to a femur, connecting a second tracking device for the surgical tracking system of the robotic arm to a tibia, manually positioning the tibia relative to the femur to a desired orientation to perform a posterior resection, manually determining a position for the posterior resection guide to perform the posterior resection, digitizing a reference point for the posterior resection guide in the three-dimensional coordinate system for a location of a feature of the posterior resection guide, moving the posterior resection guide to the location in the three-dimensional coordinate system with the robotic arm, and resecting a posterior portion of a condyle of the femur using the posterior resection guide to guide a cutting instrument.

Devices and methods for posterior resection in robotically assisted partial knee arthroplasties

Systems and methods may be used to perform robot-aided surgery. A system may include a robotic controller to monitor a position and orientation of an end effector coupled to an end of a robotic arm. The robotic controller may apply a force to a bone using the end effector, such as via a soft tissue balancing component. The robotic controller may determine soft tissue balance using information from a tracking system, such as a position of a first tracker affixed to the bone. The soft tissue balance may be output, such as to a display device.

Soft tissue balancing in articular surgery

To address technical problems facing knee arthroplasty resection validation, the present subject matter provides a tracked knee arthroplasty instrument for objective measurement of resection depth. By performing a precise comparison between the location of the tracked knee arthroplasty instrument and a reference location, the knee arthroplasty instrument measures and validates each tibial and femoral resection. To address technical problems facing validation of joint laxity following knee arthroplasty, the tracked knee arthroplasty instrument is shaped to validate the flexion gap and extension gap. When the tracked knee arthroplasty instrument is inserted between the resected tibial plateau and femoral head, the instrument shape validates whether the desired flexion gap and extension gap have been achieved.

Knee arthroplasty validation and gap balancing instrumentation

Embodiments of a system and method for surgical tracking and control are generally described herein. A system may include a robotic arm configured to allow interactive movement and controlled autonomous movement of an end effector, a cut guide mounted to the end effector of the robotic arm, the cut guide configured to guide a surgical instrument within a plane, a tracking system to determine a position and an orientation of the cut guide, and a control system to permit or prevent interactive movement or autonomous movement of the end effector.

Robotic cutting workflow

Devices, systems and methods for controlling gap height for posterior resection in a partial knee arthroplasty can comprise A) use robotic surgery planning software to adjust an extension gap to suit a flexion gap to manually position a manual posterior cut guide; B) use a surgical navigation system to determine a femur rotation axis to properly manually position a manual posterior cut guide; C1) use shims to adjust the position of a manual posterior cut guide; C2) use a robotically-guided femur and tibia partial cut guide block to position a robot-configured posterior cut guide relative to the distal end of a femur; and D) use a robotically-guided femur and tibia partial cut guide block to guide pin holes for a robot-configured posterior cut guide relative to the distal end of a femur.

Systems and methods may be used to perform robot-aided surgery. A system may include a display device and a computing device including a memory device with instructions. The instructions can cause the system to access surgical data, calculate medial and lateral gap data, calculate a recommended component set, and generate a graphical user interface. Accessing surgical data can include accessing soft tissue data indicative of at least tension in soft tissues surrounding a surgical location. The graphical user interface can include an interactive trapezoidal graphic overlaid onto a graphical representation of a distal femur and a proximal tibia. The interactive trapezoidal graphic can include a graphical representation of a medial total gap, a lateral total gap, and a recommended spacer size. The interactive trapezoidal graphic can update in response to adjustments in implant parameters to assist in surgical planning.

Embodiments of a system and method for digitizing locations within a coordinate system are generally described herein. A device may include a sleeve including a sleeve tracking marker and a tracked probe portion including an array of tracking markers and a probe tip. Movement of the probe tip relative to the sleeve between at least a first position and a second position may be monitored by tracking the sleeve tracking marker relative to at least one tracking marker of the array of tracking markers.

Mechanical optical pointer

Growing community of inventors

Montreal, Canada

Emily Gogarty