Orthosoft ULC

A system for controlling a tourniquet pressure may have a processing unit and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit. The system may obtain ultrasound readings indicative of a blood flow in a limb having a tourniquet applying pressure on the limb; determine characteristic(s) of the blood flow from the ultrasound readings; and adjust a tourniquet pressure as a function of the at least one characteristic of the blood flow. An integrated robotic surgery system is also provided.

A system for tracking a surgical implant relative to a bone in computer-assisted surgery, may have a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining a virtual model of the surgical implant, the virtual model including at least one landmark of the surgical implant, the at least one landmark being configured to be inside the bone; tracking the surgical implant, via an optical non-radiographic tracking device, as the surgical implant is inserted into the bone; calculating a location of the at least one landmark relative to the bone using the virtual model of the surgical implant and tracking data from the tracking of the surgical implant; and outputting the location of the at least one landmark relative to the bone.

Various aspects of methods, systems, and use cases may be used to prevent dislocation of a joint replacement implant by limiting movement of the joint replacement implant to safe zones of movement. In some examples, the joint replacement implant includes a ball, an intermediate shell adapted to receive the ball and engage with a shell mobility structure protruding from the ball, and an outer shell adapted to receive the intermediate shell and provide fixation of the implant within a portion of a joint of a patient. For example, the interaction between the ball, the intermediate shell, and the outer shell prevent dislocation of the ball, and therefore dislocation of the joint replacement implant.

A system for controlling a tourniquet pressure may have a processing unit and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit. The system may obtain ultrasound readings indicative of a blood flow in a limb having a tourniquet applying pressure on the limb; determine characteristic(s) of the blood flow from the ultrasound readings; and adjust a tourniquet pressure as a function of the at least one characteristic of the blood flow. An integrated robotic surgery system is also provided.

There is described an ultrasound tracking system for tracking a position and orientation of an anatomical feature in computer-assisted surgery. The system generally has: an ultrasound imaging system having a phased-array ultrasound probe unit for emitting ultrasound signals successively towards different portions of said anatomical feature, measuring echo signals returning from said portions of said anatomical feature and generating respective imaged echo datasets; a coordinate tracking system tracking coordinates of said ultrasound phased array probe unit during said measuring, and generating corresponding coordinate datasets; and a controller being communicatively coupled to said ultrasound imaging system and said coordinate tracking system, said controller performing the steps of: registering said imaged echo datasets in a common coordinate system based on said coordinate datasets; and tracking said position and orientation of said anatomical feature based on said registering.