Abstract: The present invention comprises a housing which includes a handle assembly attached thereto. The handle assembly has a first retracted position and a second extended position. The handle assembly includes a fluid container suspension mechanism thereon. Accordingly, when the handle assembly is in the second extended position, fluid containers may be suspended from the suspension mechanism on the handle assembly. The handle assembly may be retracted to the first position for storage or transport or for carrying the device via the handle assembly.

Abstract: The present invention relates to a coupler assembly for use in a posterior spinal system including components designed to be affixed to the spinal column of a person to correct various lateral and sagittal deformities. The spinal coupler assembly is adapted to be interconnected between two spaced rods. The couplers are used in conjunction with the spinal system which also includes a pair of smooth surfaced rods mounted in spaced relation to one another on the spinal column in conjunction with various fixation devices such as clamps with hook bodies, hooks, screws with hook bodies and the couplers. Each such fixation device utilizes locking sleeve assemblies at each connection point to secure the respective fixation device to the respective rod or rods. The coupler assemblies are provided to maintain the spacing of the rods. The method of performing surgery using the posterior spinal system is also disclosed.

Abstract: The present invention relates to a spinal hook body for use in a posterior spinal system including components designed to be affixed to the spinal column of a person to correct for various lateral and sagittal deformities. The hook body is adapted to interconnect a structure having a stud extending outwardly therefrom with an elongated rod. The hook body includes a recess with an opening at one side to receive the stud therein through the opening. The hook body further includes a bore in the body connected with the recess and adapted to receive the rod therethrough. A locking member is utilized for locking the hook body to the stud and rod. The spinal hook bodies are used in conjunction with the spinal system which also includes a pair of smooth surfaced rods mounted in spaced relation to one another on the spinal column in conjunction with various fixation devices such as clamps with the hook bodies, hooks, screws with the hook bodies and couplers.

Abstract: A patellar clamp and reamer for performing either a total surfacing procedure or insetting procedure for preparing the patellar surface for a prosthetic implant, including an adjustable stop connected to the clamp and engaging a collar on the reamer shaft to space the reamer blade a calibrated distance from the clamp's reference jaw. The stop is calibrated and includes indicia thereon in terms of the thickness of patellar bone to remain after resection.

Abstract: The present invention relates to a posterior spinal system including components designed to be affixed to the spinal column of a person to correct for various lateral and sagittal deformities. A pair of smooth surfaced rods are mounted in spaced relation to one another on the spinal column in conjunction with various fixation devices such as clamps with hook bodies, hooks, screws with hook bodies and couplers. Each such fixation device utilizes locking sleeve assemblies at each connection point to secure the respective fixation device to the respective rod or rods. The coupler assemblies are provided to maintain the spacing of the rods. The method of performing surgery using the posterior spinal system is also disclosed.

Abstract: The present invention relates to a method of performing surgery on a spinal column utilizing a posterior spinal system including components designed to be affixed to the spinal column of a person to correct for various lateral and sagittal deformities. The method includes the use of a pair of smooth surfaced rods mounted in spaced relation to one another on the spinal column in conjunction with various fixation devices such as clamps with hook bodies, hooks, screws with hook bodies and couplers. Each such fixation device utilizes locking sleeve assemblies at each connection point to secure the respective fixation device to the respective rod or rods. The coupler assemblies are provided to maintain the spacing of the rods.

Abstract: A separate protective liner for sterile medical device containers comprises a bottom, walls and a lid to encapsulate the medical device. The lid and walls cooperate to form an interference fit thereby maintaining the lid in a closed position without the need for any additional lid closure mechanism.

Abstract: A rasp tool including a handle member, a cutter member, and a releasable locking mechanism for selectively coupling the handle and cutter members. The locking mechanism includes a locking post on the cutter member and a corresponding post-receiving bore in the handle member. A spring-biased locking key is disposed within a guide bore that intersects the post-receiving bore such that the locking key extends partially into the post-receiving bore. As the locking post is axially introduced into the post-receiving bore, the locking post contacts the locking key and causes it to retract until the locking post is fully received within the bore, at which point the spring-biased locking key engages a transverse notch in the locking post, thereby preventing axial removal of the post from the bore. The locking key is disengaged from the locking post by a manually-actuable trigger coupled to the locking key.

Abstract: A prosthetic implant including a base portion and an additional portion which is to be securely attached to the base portion. The additional portion includes at least one post extending therefrom which is adapted to be readily received in a corresponding reverse tapered hole in the base portion. The post is adapted to be mechanically spread out to cause at least a portion of the post to become wider than the opening of the hole, thus resisting subsequent separation of the post from the hole. This secures the additional portion to the base portion of the implant. The post may be a stud-type extension integrally formed with or secured to the additional portion, or the post may be a separate member which is received in a post hole in the additional portion such that the post portion of the separate member extends from the additional portion. The post may be solid or may have a channel therethrough. The additional portion may include a substrate with a porous surface bonded or secured thereto.

Abstract: The present invention relates to a mid-line clamp assembly for use in a posterior spinal system including components designed to be affixed to the spinal column of a person to correct for various lateral and sagittal deformities. The clamp assembly includes inferior and superior clamp halves slidably interconnected with one another. Each clamp half has a body portion and a shoe connected to the body portion. Each clamp half has a stud connected to the body portion. The studs are connectable to other members incorporated in this spinal system for fixing the position of the clamp halves with respect to each other. The clamps are used in conjunction with the spinal system which also includes a pair of smooth surfaced rods mounted in spaced relation to one another on the spinal column in conjunction with various fixation devices such as the clamps with hook bodies, hooks, screws with hook bodies and couplers.

Abstract: The present invention relates to a prosthetic interpositional device/coupler designed to be interposed between the neck and head of a femoral prosthesis. One example of a contemplated environment of use of the inventive interpositional device/coupler is in the situation where the prosthesis has a neck of one material and a head of another material. The inventive interpositional device/coupler may be made with an outer wall having a taper designed to match the taper of the head and with an inner wall having a taper designed to match the taper of the neck. These tapers may differ. Additionally, the inner and outer surfaces may have different surface textures from one another so as to make the respective walls compatible with the surface texture of the material of which the adjacent structure, head or neck, is made. Three embodiments of the inventive interpositional device/coupler are disclosed.

Abstract: A sagittal approximator for clamping engagement with an open back hook for urging a spinal rod into seating engagement with said hook. The sagittal approximator includes an integral fixed handle and jaw. A shiftable handle is pivotally connected to the fixed handle. A shiftable jaw is pivotally connected to the fixed handle adjacent the fixed jaw. The pivotal handle and jaw are pivotally interconnected such that as the pivotal handle is shifted, the pivotal jaw shifts accordingly. The fixed handle includes a threaded channel and longitudinal guide rib. A spinal rod engagement head is slidably carried by the fixed handle and jaw and includes a spinal rod seat which with contact with the spinal rod produces a balanced seating load on the rod. A threaded pusher rod is carried by the channel which when rotated longitudinally shifts the head relative to the fixed handle.

Abstract: A method of constructing a prosthetic implant including a porous pad separate from the stem of the implant and in which the pad is wrapped around the stem for attachment thereto. The pad is first precontoured into a preliminary shape and is then wrapped about the stem in a second and final shape corresponding to the shape of the stem portion about which it is wrapped and subsequently secured.

Abstract: 36 The present invention relates to a prosthetic interpositional device/coupler designed to be interposed between the neck and head of a femoral prosthesis. One example of a contemplated environment of use of the inventive interpositional device/coupler is in the situation where the prosthesis has a neck of one material and a head of another material. The inventive interpositional device/coupler may be made with an outer wall having a taper designed to match the taper of the head and with an inner wall having a taper designed to match the taper of the neck. These tapers may differ. Additionally, the inner and outer surfaces may have different surface textures from one another so as to make the respective walls compatible with the surface texture of the material of which the adjacent structure, head or neck, is made. Three embodiments of the inventive interpositional device/coupler are disclosed.

Abstract: A prosthetic implant including a porous pad separate from the stem of the implant and in which the pad is adapted to be wrapped around the stem for attachment thereto. The pad is first precontoured into a preliminary shape and is then wrapped about the stem in a second and final shape corresponding to the shape of the stem portion about which it is wrapped and subsequently secured.

Abstract: An implant is disclosed which includes an elongated portion constructed in such a manner that the modulus of elasticity varies from one end to another. A plurality of discs alternating between solid discs and mesh discs are stacked with the relationship between the composite thickness of mesh regions as compared to the thickness of solid regions determining the modulus of elasticity at any region thereof. The invention is applicable to all different types of prosthetic implants.

Abstract: This invention comprises a prosthetic implant having a metal base with a layer of metallic wire screen bonded to the upper surface of the base, and further having a polyethylene portion molded about the upper surface of the base. The polyethylene portion penetrates the porous openings in the screen to enhance the securement of the polyethylene portion to the base. The screen is fully encapsulated between the metal base and the polyethylene portion. The base further includes a plurality of notches spaced around the peripheral edge. The screen layer overhangs over at least a portion of the notches. In addition, the lower surface of the base includes a porous metallic layer providing an exposed porous surface. The construction of the screen layer on the upper surface of the base is different from the construction of the porous layer on the lower surface.

Abstract: A prosthetic implant which includes a top surface and an undersurface oppositely located therefrom. The undersurface includes a raised peripheral rim, a plurality of raised islands, and at least one raised rail all arranged in a pattern to create a textured undersurface. The raised portions are undercut. The arrangement of the raised portions is designed so that the bone cement which is used to secure the implant to the bone cell interlock securely to the undersurface to resist potential subsequent loosening of the implant.

Abstract: A set of surgical products which includes an attachment mechanism for modular surgical products. The set includes a plurality of first components and a plurality of second components. One of the first components and one of the second components are to be selected for engagement with each other. The components each include an indexing means including a key on the first components and a corresponding slot on the second components for mating with the key. The orientations of the keys and slots vary, so that only first components having a key orientation that is similar to and aligns with the slot orientation of a second component will properly mate together and so that first components will not properly align and mate with second components having slot orientations that are different from the respective key orientation.