Abstract: A kit (400) for use in performing joint arthroplasty is provided. The kit (400) includes a trial (12) and a reamer (2). The reamer (2) is for preparing a cavity (4) in the intramedullary canal (8) of a long bone (8) with the use of a driver (10) and to assist in performing a trial reduction. The reamer (2) includes a first portion (14) for placement at least partially in the cavity (4) of the long bone (8) and a second portion (16) operably connected to the first portion (14). The reamer (2) is removably connected to the driver (10) to rotate the reamer (2). The trial (12) is removably attachable to the reamer (2).

Abstract: A tamp assembly for use in configuring bone cavity filler material within a bone cavity, in preparation for receiving an implant, includes a distal tamp portion which has a substantially constant cross-section over at least part of its length. A proximal tamp portion has a through bore extending through it with a size which is such that the proximal tamp portion is a sliding fit over the distal tamp portion. The proximal tamp portion has an exterior tamping surface extending from the through bore which faces generally towards the distal tamp portion. The assembly includes a hammer for transmitting impact to the bone cavity filler material which is contacted by the tamping surface of the proximal tamp portion.

Abstract: A ball and socket joint prosthesis (10) for use in arthroplasty is provided. The prosthesis includes a body (32) for implantation at least partially within the medullary canal (24) of a long bone (12). The long bone defines trabeculae (60) in the proximal cancellous bone (22) and lamellae (71) in the cortical bone (65). The body includes a proximal portion (52) thereof and a distal portion (54). The proximal portion has a medial periphery (69) and includes surface features (64) on a substantial portion of its proximal portion. The surface features are positioned to optimally transfer load from the prosthesis to the long bone.

Abstract: A method for movably connecting two members. The method comprises the steps of molding a first member in a first mold portion and placing the first member within a second mold portion. The method also includes inserting molten material into the second mold portion to form a second member. The method further includes limiting contact between the first member and the material to prevent bonding between the first member and to permit relative motion between the members. The method also includes cooling the molten material into a solid form, whereby an assembly is formed from the first and the second member. The method further includes removing the members from the second mold assembly.

Abstract: A polymeric printing member for use in a printing machine is provided. The polymeric printing member includes a substrate and a coating applied to the substrate. The coating is applied to the substrate by rotating the substrate about its longitudinal axis and applying the coating from an applicator to the substrate in a spiral pattern in a controlled amount so that substantially all the coating that exits the applicator adheres to said substrate.

Abstract: A polymeric printing member for use in a printing machine is provided. The polymeric printing member-includes a substrate and a coating applied to the substrate. The coating is applied to the substrate by rotating the substrate about its longitudinal axis and applying the coating from an applicator to the substrate in a spiral pattern in a controlled amount so that substantially all the coating that exits the applicator adheres to said substrate.

Abstract: An apparatus for measuring triboelectric charge applied by a material to a flexible member is provided. The apparatus includes a frame and a drum. The drum is used for mounting the member to an external periphery thereof. The drum is rotatably mounted to the frame. The apparatus also includes a mechanism including a motor for rotating the drum, the mechanism operably associated with the drum. The apparatus also includes a support for supporting the material in intimate contact with the flexible member. The material and the member form a triboelectric charge on the external surface of the member. The material includes a material portion thereof in intimate contact with the member at a first member position on an external periphery of the member. The apparatus also includes a charge measuring device operably associated with the drum for measuring an electrical field emanating from the member.

Abstract: A centralizer (1) is provided with a hollow body (2) and a plurality of equally spaced arms (4). The arms (4) extend in the form of cup handles from the hollow body (2). Each arm (4) has a variable cross-section along its length with the cross-section becoming increasingly ovoid towards one end of the arm (4).

Abstract: A medical implant of ultrahigh molecular weight polyethylene having an improved balance of wear properties and oxidation resistance is prepared by irradiating a preform of ultrahigh molecular weight polyethylene, annealing the irradiated preform in the absence of oxygen to a temperature at or above the onset of melting temperature, and forming an implant from the stabilized cross-linked polymer. Implants prepared according to the process of the present invention have comparable oxidation resistance and superior wear performance compared to unirradiated ultrahigh molecular weight polyethylene.

Abstract: A handle assembly (1) has a handle body (4), an arm (8) and a trigger mechanism (6). The handle body (4) has a recess (18) for receiving an instrument to be held by the handle assembly (1). The arm (8) pivots in relation to the handle body (4) and the trigger mechanism (6) holds the arm (8) in two positions relative to the handle body (4). A third position enables the arm (8) to be detached from the handle body (4). In the first position, the arm (8) is locked adjacent the handle body (4) such that a projection (30) from the arm (8) engages the recess (18) in which a neck of an instrument being held can be inserted.

Abstract: A fastener for securing a first component to a second component in a device is disclosed. The fastener includes an elongated body and a head. The elongated body has a portion thereof having a cross section perpendicular to a longitudinal axis of the body. The portion of the body has an arcuate connecting surface on an external periphery thereof. The body cooperates with the first component to permit the portion of the body to freely pass through a first component opening in the first component. The body cooperates with the second component to permit the portion of the body to freely pass through a second component opening in the second component when the body is oriented in a first position with respect to the second component opening. The body cooperates with the second component to permit the arcuate connecting surface to engage with the second component when the body is oriented in a second position with respect to the second component opening. The head is attached to one end of the elongated body.

Abstract: A charging roller for use in a machine in which an electrical bias is applied to a surface of a member is provided. The charging roller includes a shaft, a foam material surrounding at least a portion of the shaft, and a thermoplastic material. The thermoplastic material surrounds at least a portion of the foam material. The foam material is adapted to provide for greater compliance to prevent vibration of the roller against the surface.

Abstract: A filter in a printing machine traps contaminants from a stream of air passing therethrough. The filter includes a support member defining an aperture therethrough for the passage of the stream of air. The support member has a cross section in a plane perpendicular to the flow of the stream of air. The cross section has an oblong shape and includes a longitudinal axis and a transverse axis. The filter further includes an air permeable member supported by the support member. The air permeable member defines a opening therein for receiving the stream of air. The filter further includes a reinforcement connected to the air permeable member. The reinforcement extends along the air permeable member in the direction of the stream of air. The reinforcement is positioned with respect to the support member so as to shape the air permeable member so that the opening may be sufficiently large to efficiently receive the stream of air.

Abstract: A bushing mountable in a housing for supporting a rotating member and for providing a bias force to the rotating member in a first direction is disclosed. The bushing includes a body defining an aperture therein and a mounting member for mounting the bushing to the housing. The bushing also includes a biasing member operably associated with said body and said mounting member. At least two of said biasing member, said mounting member and said body are integral with each other.

Abstract: A die for the preparation of a toner resin in an extruder having a housing defining a housing aperture therein and a conveyor for conveying the resin through the housing aperture to form a stream of resin is provided. The die includes a member connected to a first end of the housing. The member defines an opening therethrough. The cross sectional area of the opening is progressively reduced in the direction of the stream of resin for at least a substantial portion of the opening.

Abstract: A charging apparatus for applying a uniform electrostatic charge to a charge retentive surface is provided. The charging apparatus is operably electrically connectable to a power supply for supplying an electrical bias to the charging apparatus. The apparatus includes a housing and an electrode mounted to the housing and positioned adjacent the surface in a non-contact relationship therewith. The apparatus also includes a shield connected to the housing and at least partially surrounding the electrode. The apparatus also includes an electrical connector, electrically connected to the shield and electrically connectable to the power supply for providing an electrical bias to the shield. The electrical connector extends from the shield and is integral therewith.

Abstract: A cover for protecting from undesired exposure a photoconductive member assembled to the housing of a printing cartridge for use in a printing machine is provided. The housing includes an aperture periphery defining an aperture therein for communication of illumination from an illumination source with the photoconductive member. The cover includes a first portion positionable adjacent the housing, a second portion operably associated with the first portion and at least partially extendible between the illumination source and the photoconductive member for protecting a substantial portion of the photoconductive member from exposure, a third portion operably associated with the second portion, the third portion removably securable to the housing, and a fourth portion operably associated with the third portion. The fourth portion is utilized for removal of the cover. As the third portion is pulled from the housing the third portion is directed along a path spaced from the photoconductive member.

Abstract: A container for storing a supply of particles for use in a developer unit of an electrophotographic printing machine is provided. The container is fittable to an adapter having an adaptor feature therewith. The adaptor is associated with the developer unit. The container includes a body defining a chamber for storing particles therein. The body defines an aperture in the periphery of the body. The container also includes a cover for use in covering the aperture and a securing feature. The securing feature is associated with the cover. The securing feature cooperates with the adapter feature on the adapter to radially secure the cover with respect to the adaptor.