Abstract: Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device, a reference sensor device, and at least one orthopedic fixture. The surgical orientation device, reference sensor device, and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, or otherwise to assist in an orthopedic procedure(s).

Abstract: A cylinder stroke system with a laser proximity detector including a pressure containing tube. The pressure containing tube can include a first tube end and a second tube end. A cylinder rod can be movably disposed within the pressure containing tube. The system can also include a piston disposed on the cylinder rod first end; a first fluid port formed in the pressure containing tube; a second fluid disposed within the pressure containing tube; a blind end cap and mount; a laser secured to the pressure containing tube; at least one optic guide; a lens separating the at least one optic guide from the second fluid. The cylinder stroke system can also include a camera in communication with a main controller. The camera can receive the reflection from the piston and convert the reflection into a reflection signal.

Abstract: A tensioner assembly with a hydraulic fluid and gas is described herein. The tensioner assembly can accurately and reliably detect the position of a cylinder rod in each cylinder of the assembly by using a laser. The data obtained from the laser can be reliable and dependable regardless of any powders, oil, particulate, or scratched lenses of the camera.

Abstract: Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device, a reference sensor device, and at least one orthopedic fixture. The surgical orientation device, reference sensor device, and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, or otherwise to assist in an orthopedic procedure(s).

Abstract: A breast compression device suitable for compressing a breast for an x-ray guided biopsy, the device comprising: a) a base for contacting a portion of the surface of the breast; b) a flexible band, anchored to the base, adapted to be positioned on a side of the breast opposite the base, when the breast is inserted between the base and the band, which band is adapted to be wrapped at least part way around the breast; and c) a tensioning device, adapted to tension the flexible band around the inserted breast when the flexible band is anchored to the base, thereby compressing the breast between the flexible band and the base.

Abstract: A system for performing a breast biopsy. The system includes a breast compression device, an ultrasound imaging unit and a biopsy module capable directing a biopsy needle to a lesion in the breast, guided at least in part by ultrasound images. The system may optionally include a piece of furniture, such as table or a reclining chair.