Abstract: In one aspect, an orthopaedic prosthetic component is provided. The prosthetic component comprises a base, a porous three-dimensional structure and at least one surface feature extending past a surface boundary of the porous three-dimensional structure to engage a patient's bone.

Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.

Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.

Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.

Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.

Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.

Abstract: In one aspect, an orthopaedic prosthetic component is provided. The prosthetic component comprises a base, a porous three-dimensional structure and at least one surface feature extending past a surface boundary of the porous three-dimensional structure to engage a patient's bone.

Abstract: An orthopaedic prosthetic component is provided. The orthopaedic prosthetic component comprises a porous three-dimensional structure shaped to be implanted in a patient's body. The porous three-dimensional structure comprises a plurality of unit cells. At least one unit cell comprises a first geometric structure having a first geometry and comprising a plurality of first struts, and a second geometric structure having a second geometry and comprising a plurality of second struts connected to a number of the plurality of first struts to form the second geometric structure.

Abstract: The invention provides a novel composite bone graft system utilizing a porous collagen scaffold having a matrix impregnated with calcium phosphate particles and more than one bioactive agent, one of which is conjugated to the matrix. The graft system exhibits increased mechanical strength and osteogenic properties by providing sites for tissue attachment and propagation. The bioactive agents are delivered to the scaffold via different mechanisms to enable sequential and sustained release of the bioactive agents over time.

Abstract: The invention provides a novel composite bone graft system utilizing a porous collagen scaffold having a matrix impregnated with calcium phosphate particles and more than one bioactive agent, one of which is conjugated to the matrix. The graft system exhibits increased mechanical strength and osteogenic properties by providing sites for tissue attachment and propagation. The bioactive agents are delivered to the scaffold via different mechanisms to enable sequential and sustained release of the bioactive agents over time.

Abstract: This invention relates to an improved process for manufacturing bleached thermomechanical aspen pulp having reduced yellow after treatment with aluminum based chemicals such as alum which are used in paper making processes. In this improved process the pulp is washed prior to, after or between the bleaching stages or a combination of the foregoing.

Abstract: This invention relates to an improved process for manufacturing bleached thermomechanical aspen pulp having reduced yellow after treatment with aluminum based chemicals such as alum which are used in paper making processes. In this improved process the pulp is washed prior to, after or between the bleaching stages or a combination of the foregoing.

Abstract: A can crusher comprising a vertical hopper to receive empty cans laid horizontally in a vertical stack one above the other, with the bottton can in the stack being positioned in end-to-end registration with a plunger head which reciprocates horizontally between a withdrawn position out of contact with the bottom can and an extended position to crush and compress the bottom can. When the plunger is withdrawn, the crushed can drops through a discharge opening just large enough for the compressed can to drop through but small enough to prevent an uncrushed can from falling through. The crushed can drops into a container placed below the discharge opening, and the next can in the vertical stack falls in place in registration with the plunger for crushing. The plunger head is moved between its withdrawn and extended positions by a drive rod pivotally connected to an intermediate portion of a lever which in turn is pivotally connected at one end to a pivot pin mounted in front of the vertical hopper.

Abstract: A cleaning device for swimming pools comprising a specially shaped propelling head attached at the end of a flexible hose supplied by water under pressure. Water ejected rearwardly through ports surrounding the attachment of the head to the hose drives the head forward. The whipping action of the hose encouraged by jets spaced along the length of the hose produces a random trajectory over the entire bottom of the pool so that effective agitation and cleaning is achieved over the total pool area.

Abstract: Portable pool models for demonstrative and sales purposes to show prospective pool buyers the appearance of a given pool configuration landscaped to simulate a full-size pool in a ground installation on their property as well as illustrating and demonstrating the construction and maintenance of the water content and plumbing and electrical assemblies of the pool installation.