Modular stem extension

The modular stem component may include a shaft portion, a head, and a sleeve. The shaft portion is configured for receipt within the intramedullary canal of a bone and the head is configured to receive another component of a modular prosthetic system, such as a femoral neck, thereon. In one exemplary embodiment, the head extends radially around at least a portion of the stem and includes a rib defining a flange extending therefrom. The sleeve, which is formed as an independent part of the modular stem component and is made at least partially of a highly porous biomaterial, includes opposing ends and has a bore extending therethrough. The bore is configured to facilitate sliding receipt of the sleeve on the head.

METHODS FOR AUGMENTING FEMORAL COMPONENTS OF KNEE JOINT PROSTHESES

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur. 113-. (canceled)14. A femoral implant system implantable in a distal femur of a patient , the femoral implant system comprising: a stem component;', 'a lateral condyle including a proximal side;', 'a medial condyle including a proximal side;', 'a lateral inner rail that includes a proximal surface situated proximally of the proximal side of the lateral condyle; and', 'a medial inner rail that includes a proximal surface situated proximally of the proximal side of the medial condyle; and, 'a femoral component, comprising a proximal body portion through which the stem component can be received;', 'a lateral leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the lateral condyle when the femoral augment is connected to the femoral component;', 'a medial leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the medial condyle when the femoral augment is connected to the femoral component; and', 'a web portion,', 'wherein the lateral leg, the ...

Methods for augmenting a tibial component of a knee joint prosthesis

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot.

Methods and apparatuses for attaching tissue to orthopaedic implants

Methods and apparatuses for attaching tissue structures to orthopaedic implants. In one exemplary embodiment, the methods and apparatuses are used to attach soft tissue and/or bone to a proximal tibial implant. In another exemplary embodiment, the methods and apparatuses are used to attach soft tissue and/or bone to a proximal femoral implant.

CONSTRAINED PROSTHETIC KNEE WITH ROTATING BEARING

A constrained prosthetic knee having a modular hinge post and a rotating bearing. A cannulated hinge post is rotatably connected to the femoral component of the knee prosthesis so that a hinge post extension may be anteriorly positioned through the hinge post and into the tibial component of the knee prosthesis, after positioning of the femoral component in the femur and the tibial component in the tibia. The hinge post is preassembled to the femoral component so that such assembly is not required during the implantation procedure. A meniscal component forming the rotating bearing of the knee prosthesis is packaged together with the hinge post extension so that the appropriate hinge post extension is readily available. The meniscal component includes a mechanism for preventing lift off of the meniscal component from the tibial component, while allowing rotation of the meniscal component relative to the tibial component. 118-. (canceled)19. A prosthetic femoral component , comprising:a femoral component body;a hinge pin having a longitudinal hinge pin axis;a hinge post rotatably connected to said femoral component body which includes said hinge pin passing through a hinge pin aperture in said hinge post so that rotation of said hinge post relative to said femoral component body is defined about the longitudinal hinge pin axis, said hinge post including a cannula extending entirely through the hinge post along a longitudinal hinge post axis that is non-intersecting with and transverse to said longitudinal hinge pin axis; anda hinge post extension connected to the hinge post which includes the hinge post extension extending into said cannula.20. The prosthetic femoral component of claim 19 , wherein said hinge pin is fixed to said femoral component body.21. The prosthetic femoral component of claim 19 , wherein the hinge post extension is formed as a one-piece construction.22. The prosthetic femoral component of including cooperating locking tapers for locking the ...

Tibial augments for use with knee joint prostheses, method of implanting the tibial augment, and associated tools

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described.

FEMORAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESIS

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur. 113.-. (canceled)14. A femoral implant system implantable in a distal femur of a patient , the femoral implant system comprising:a femoral component that is implantable in the distal femur of the patient as part of a knee joint prosthesis, the femoral component comprising a stem component to facilitate securing the femoral component to the distal femur, a medial condyle, and a lateral condyle, the medial condyle and the lateral condyle each including a proximal side; and a proximal body portion through which the stem component can be received;', 'a lateral leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the lateral condyle when the femoral component and the femoral augment are implanted in the distal femur;', 'a medial leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the medial condyle when the femoral component and the femoral augment are implanted in the distal femur; and', 'a web portion,', 'wherein the lateral leg, the medial ...

TIBIAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESES, METHOD OF IMPLANTING THE TIBIAL AUGMENT, AND ASSOCIATED TOOLS

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described. 1. (canceled)2. A method for augmenting a tibial component of a knee joint prosthesis , comprising:implanting a tibial component of a knee joint prosthesis, a first shaped annular member, and a second shaped annular member in a proximal portion of a human tibia, wherein the tibial component, the first shaped annular member, and the second shaped annular member are left in the proximal portion of the human tibia with the first shaped annular member and the second shaped annular member connected to the tibial component for augmenting the tibial component in the proximal portion of the human tibia,wherein the tibial component comprises a tibial plate and a tibial stem component extending from said tibial plate,wherein the first shaped annular member and the second shaped annular member each have a height extending between a proximal end and a distal end of the respective shaped annular member, wherein the first shaped annular member and the second shaped annular member each include a tapered outer surface that tapers in a direction toward the distal end of the respective shaped annular member, ...

TIBIAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESES, METHOD OF IMPLANTING THE TIBIAL AUGMENT, AND ASSOCIATED TOOLS

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted to within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described. 1. (canceled)2. A tibial implant system , comprising:a tibial component of a knee joint prosthesis, the tibial component positionable in a proximal portion of a human tibia and comprising a tibial plate and a tibial stem component, the tibial stem component contacting the tibial plate and extending from the tibial plate to a distal-most end of the tibial stem component;a first shaped annular member constructed separately from the tibial plate and the tibial stem component, the first shaped annular member connected to the tibial stem component for augmenting the tibial component in the proximal portion of the human tibia; anda second shaped annular member constructed separately from the tibial plate and the tibial stem component, the second shaped annular member connected to the tibial stem component for augmenting the tibial component in the proximal portion of the human tibia;wherein the first shaped annular member and the second shaped annular member are of different sizes and each have a height extending between a proximal end and a distal end of the respective shaped annular member, ...

SYSTEM AND METHOD FOR IMPLEMENTING STANDARDIZED TESTS

A system for administering a test through an application is described. The system includes a non-transitory computer readable medium and a microprocessor. The microprocessor is configured to execute instructions stored on the non-transitory computer readable medium. The system further includes a first output device that is coupled to the microprocessor and configured to provide output information, and a first input device coupled to the microprocessor and configured to receive input information. The microprocessor is further configured to output a test list, access a selected test, output an instruction from the selected test, output a first prompt, receive a first response, determine a first response time, establish a first score, and create a dataset. 1. A system for administering a test through an application , comprising:a microprocessor, the microprocessor being configured to execute instructions stored on a non-transitory computer readable medium;a first output device coupled to the microprocessor and configured to provide output information; anda first input device coupled to the microprocessor and configured to receive input information; output a test list;', 'access a selected test;', 'output an instruction from the selected test;', 'output a first prompt;', 'receive a first response;', 'determine a first response time;', 'establish a first score; and', 'create a dataset., 'wherein the microprocessor is further configured to2. The system of claim 1 , wherein the microprocessor is further configured to output a test list to the first output device;receive input information from the first input device for accessing the selected test; andoutput the instruction to the first output device.3. The system of claim 1 , wherein the system further comprises:a second output device coupled to the microprocessor and configured to provide output information; anda second input device coupled to the microprocessor and configured to receive the input information; output a ...

FEMORAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESIS

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur. 113.-. (canceled)14. A method for augmenting a femoral component of a knee joint prosthesis , comprising:implanting a femoral component of a knee joint prosthesis and a femoral augment in a distal femur of a patient, wherein the femoral component and the femoral augment are left in the distal femur with the femoral augment connected to the femoral component for augmenting the femoral component in the distal femur,wherein the femoral component comprises a lateral condyle, a medial condyle, a lateral inner rail, and a medial inner rail, the lateral inner rail extending proximally of a proximal side of the lateral condyle, the medial inner rail extending proximally of a proximal side of the medial condyle,wherein the femoral augment includes a body portion and a pair of legs extending distally from the body portion, the body portion including a tapered outer lateral surface and a tapered outer medial surface that each are tapered inwardly in a distal-to-proximal direction, the pair of legs defining a medial-lateral recess therebetween in which ...

Transport carriage for an external fixator

The transport carrier of this invention is configured for use with an external fixator having a hexagonal rod. The carrier includes a threaded sleeve which accommodates the hexagonal rod of the fixator. A compressible ball collet and retaining nut are carried by the sleeve and serve to lock the sleeve into position on the rod in a known manner. A clamp is carried by the sleeve and rotationally fixed relative to the rod by a key and key way, yet may shift along the sleeve. The clamp is configured to connect to one or more bone pins using a ball collet and retaining nut to fix the clamp to the pin. The bone pins connect to a bone fragment such that as the clamp shifts along the sleeve, the bone fragment is transported between two portions of a bone. An internally threaded sleeve is carried by the externally threaded sleeve and engages the clamp. Upon rotation of the internally threaded sleeve, the clamp and externally threaded sleeve move longitudinally along the sleeve.

Capacitive voltage multiplier

A voltage multiplier in which an n-phase circuit charges n-1 capacitors during the separate phases, then during the last or nth phase the capacitors are put in series to create n times the input voltage. MOS transistor devices are used to act as switches to charge a number of series connected capacitors. During a first phase of operation, the first in the series of capacitors is charged to a specific voltage to be multiplied by closing the MOS switches to place the voltage across the capacitor. During a next phase of operation, the first capacitor is disconnected by the switches and the next capacitor in series is charged to the input voltage. During successive phases of operation, successive capacitors are similarly charged. During the last phase of operation, the capacitors are connected in series with the voltage to be multiplied and are connected to an output capacitor. This places a total charge on the output capacitor which is equal to the sum of all the charges on the respective series connected capacitors plus the voltage to be multiplied. This results in an n+1 voltage multiplication wherein n is the number of series connected capacitors.

Sagittal approximator

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.

Orthopaedic apparatus for driving and/or removing a bone screw

The invention is directed to an orthopaedic apparatus 10 for at least one of removing and driving an elongated fixation member 12 having an enlarged head 22. The orthopaedic apparatus 10 includes a hollow, elongated body 14 having an open end 26 for receiving the enlarged head 22 therein. The body 14 further has a deflectable portion 28 at the open end. A shaft 16 is disposed within the body, and has a distal end 34 disposed substantially adjacent to the body open end. The distal end 34 has an exterior configuration which is adapted to mate with the enlarged head. The deflectable portion is configured to impart a radially inward force around the enlarged head and the shaft is configured to impart an axial compression force on the enlarged head, thereby locking the elongated fixation member relative to the orthopaedic apparatus.

SURGICAL SLIDING INSTRUMENT AND METHOD OF USE

L'instrument chirurgical sert à manoeuvrer un élément coulissant le long d'une tige allongée ou d'un autre élément support. Il comporte une extrémité distale 505 reliée à une poignée 520 et qui enjambe l'élément coulissant à l'aide de deux éléments de prolongement munis de creux 514, 515 chevauchant la tête allongée. L'instrument peut également être utilisé en chirurgie pour permettre l'introduction d'un élément coulissant dans une ouverture d'un élément à fixer en position.

Constrained prosthetic knee with rotating bearing

A constrained prosthetic knee having a modular hinge post and a rotating bearing. A cannulated hinge post is rotatably connected to the femoral component of the knee prosthesis so that a hinge post extension may be anteriorly positioned through the hinge post and into the tibial component of the knee prosthesis, after positioning of the femoral component in the femur and the tibial component in the tibia. The hinge post is preassembled to the femoral component so that such assembly is not required during the implantation procedure. A meniscal component forming the rotating bearing of the knee prosthesis is packaged together with the hinge post extension so that the appropriate hinge post extension is readily available.

Surgical slider instrument and method of using instrument

A surgical instrument to aid in maneuvering a slideable member along a rod or other base member. The instrument has a distal tip which straddles the slideable member to provide for longitudinal movement of the slideable member in either longitudinal direction. The instrument also allows downward force to be applied to the slideable member. The instrument also may be used to assist in introducing the slideable member into an opening of another device.

Constrained prosthetic knee with rotating bearing

A constrained prosthetic knee having a modular hinge post and a rotating bearing. A cannulated hinge post is rotatably connected to the femoral component of the knee prosthesis so that a hinge post extension may be anteriorly positioned through the hinge post and into the tibial component of the knee prosthesis, after positioning of the femoral component in the femur and the tibial component in the tibia. The hinge post is preassembled to the femoral component so that such assembly is not required during the implantation procedure. A meniscal component forming the rotating bearing of the knee prosthesis is packaged together with the hinge post extension so that the appropriate hinge post extension is readily available.

Surgical slider instrument and method of using instrument

ABSTRACT A surgical instrument to aid in maneuvering a slideable member along a rod or other base member. The instrument has a distal tip which straddles the slideable member to provide for longitudinal movement of the slideable member in either longitudinal direction. The instrument also allows downward force to be applied to the slideable member. The instrument also may be used to assist in introducing the slideable member into an opening of another device.

Orthopaedic bone plate

An orthopaedic bone plate is coupled to a bone having an enlarged head at one end thereof which is attached to a shaft. The bone plate includes an elongate portion, a flared portion and an intermediate portion. The elongate portion is attachable to the bone shaft using a plurality of bone screws. The elongate portion generally defines a longitudinal axis. The flared portion is attachable to the bone head using at least one bone screw. The intermediate portion interconnects the elongate portion and the flared portion. The intermediate portion is structured and arranged to allow the elongate portion and the flared portion to move relative to each other in a direction transverse to the longitudinal axis when the elongate portion and the flared portion are attached to the bone.

Constrained prosthetic knee with rotating bearing

A constrained prosthetic knee having a modular hinge post and a rotating bearing. A cannulated hinge post is rotatably connected to the femoral component of the knee prosthesis so that a hinge post extension may be anteriorly positioned through the hinge post and into the tibial component of the knee prosthesis, after positioning of the femoral component in the femur and the tibial component in the tibia. The hinge post is preassembled to the femoral component so that such assembly is not required during the implantation procedure. A meniscal component forming the rotating bearing of the knee prosthesis is packaged together with the hinge post extension so that the appropriate hinge post extension is readily available.

Roofing granule treatment by coating with a metallic algicide

Metal algicides, such as zinc and copper, are sprayed in the form of droplets of molten metal onto the surface of roofing granules or onto the surface of asphalt roofing compositions in which said granules are embedded. The metal algicides solidify and adhere on the surface of said granules or compositions as relatively fine, randomly distributed, irregular shaped metal globules. During periods of rain or dew upon atmospheric exposure of roofing compositions thus flame treated, or incorporating therein roofing granules so treated, the oxidized globules become ionized so that metallic algicidal ions are slowly released therefrom and leached over the roofing surface, thus retarding the biological growth of algae and/or fungi over extended periods of time. The invention permits an effective distribution of algicidal material over the surface treated, requires the use of advantageously low dosage levels of said metals for satisfactory, long-term algicidal action, and provides a high degree of compatibility with the requirements of conventional roofing granule and asphalt roofing composition production.

Modular plate and keel provisionals

A provisional prosthetic system and the surgical methods for utilizing the same. In one embodiment, the provisional prosthetic system includes a keel and a plate configured to be secured to the keel. The keel may further include a body and at least one fin extending outwardly therefrom. The fin functions to prevent rotation of the keel once it is implanted within a bone. In one embodiment, the plate includes a captured screw having a flanged head and external threads. The captured screw is retained by the plate and configured to secure the plate to the keel. In this embodiment, the captured screw extends through an aperture in the plate. Further, the captured screw may be retained by the plate due to the interaction of the flange head and external threads of the captured screw with the top and bottom surfaces of the plate, respectively.

Constrained prosthetic knee with rotating bearing

A constrained prosthetic knee having a modular hinge post and a rotating bearing. A cannulated hinge post is rotatably connected to the femoral component of the knee prosthesis so that a hinge post extension may be anteriorly positioned through the hinge post and into the tibial component of the knee prosthesis, after positioning of the femoral component in the femur and the tibial component in the tibia. The hinge post is preassembled to the femoral component so that such assembly is not required during the implantation procedure. A meniscal component forming the rotating bearing of the knee prosthesis is packaged together with the hinge post extension so that the appropriate hinge post extension is readily available.

Gate protective device for insulated gate field-effect transistors

Surgical slider instrument and method of using instrument

High strength paper, process of making the same and single - play paper sacks made therefrom

Tunnel

Method for augmenting femoral components of knee joint prosthesis

A femoral augment for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of fee femur.