A61F2002/368

Hip or Shoulder Prosthesis and Placement Instruments

A hip/shoulder prosthesis includes: a head component; a metaphyseal component; a diaphyseal nail, and a locking device. The head component includes: a front face and rear face; with a bore, and first and second shaped recesses in the rear face. The metaphyseal component includes: a central transverse aperture at an angle to the metaphyseal component's axis; a first end configured for threaded engagement within the bore of the head component; and a longitudinal hole that begins at the second end, transects the transverse aperture and reaches the first end, to receive the locking device. The diaphyseal nail is inserted in the femoral or humeral canal, and includes: fastening apertures that receive corresponding screws for fastening the diaphyseal nail to the femur or humerus; a portion configured to be received within, and engage, the transverse aperture of the metaphyseal component, and a transverse hole configured to receive the locking device.

Modular Rotational Device For Torsionally Stabilizing An Endoprosthesis
20200297500 · 2020-09-24 ·

An improved modular rotational device includes a first and second threaded coupler for affixation along the stem of an endoprosthetic device, for example, a humeral prosthesis or a femoral prosthesis. The rotational device axis of rotation is coaxial with the stem, and its axis of rotation is located in close proximity to the intramedullary stem of the prosthesis or in close proximity to the distal articulation of the prosthesis. A housing has a proximal and distal end with an axial bore therethrough for receiving an elongated stem of the device. A lobe ring may be utilized to limit the axis of rotation of the device. Additional endoprosthetic devices may be attached to male or female threaded couplers, or to Morse tapers. A plurality of suture attachments facilitates attachment of soft tissue thereto.

Proximally fitting femoral component with adjunctive screw fixation
10758356 · 2020-09-01 ·

The proximally fitting femoral component with adjunctive fixation screws replaces a natural femoral head and proximal femur of a patient during a partial or total hip replacement. The femoral component includes an intramedullary stem having a proximal portion and a distal portion, a neck extending from the proximal portion, and a ball removably attached to a tip end of the neck, the ball forming a ball and socket joint with the acetabular cup of a hip prosthesis. Fixation screws may be installed in the proximal portion of the stem for added rotational and axial stability when necessary. An alignment device is removably attachable to the femoral component for aligning screw holes in cortical bone of the femur with holes or bores in the proximal portion of the stem. The fixation screws may extend in an anterior posterior or medial-lateral plane.

Antibiotic delivery system and method for treating an infected synovial joint during re-implantation of an orthopedic prosthesis

An antibiotic delivery system including an intramedullary stem that is adapted to be removably mounted into a medullary canal of a bone. The stem includes a body having an inlet adapted to be in fluid communication with a source of liquid-borne antibiotic and a plurality of outlets disposed along the stem. A channel extends between the inlet and the plurality of outlets for delivering a fluid-borne antibiotic from the inlet to the plurality of outlets so as to distribute the antibiotic along the medullary canal in a controlled fashion. A method of treating an infected joint during a two-stage re-implantation of an orthopedic implant is also disclosed.

FEMORAL HIP JOINT SPACER WITH IRRIGATION DEVICE
20200222196 · 2020-07-16 ·

A femoral hip joint spacer. The spacer has a prosthesis body with a ball head, a neck, a stem and an anchoring sleeve which encloses the stem on a proximal side of the stem with a circumferential fastening area, irrigation liquid inlet and outlet openings in the body surface, at least one irrigation liquid discharge opening on a distal side of the stem and at least one irrigation liquid intake opening on the ball head or on the neck. The discharge opening is connected in a liquid-permeable manner to the inlet opening but not to the outlet opening and the intake opening is connected inside the prothesis body in a liquid-permeable manner to the outlet opening but not to the inlet opening. A cavity open on two sides is formed inside the anchoring sleeve and connects a proximal side to a distal side of the sleeve in a liquid-permeable manner.

Periprosthetic shoulder fracture repair

A periprosthetic fracture repair solution that provides a variety of fracture fixation options should a fracture occur after total hip, knee, or especially a total shoulder arthroplasty, and provides associated methods and apparatus for application of provided fixation. The ability to pre-engineer fracture fixation contingent solutions into humeral components provides for a distinct clinical advantage in the planning and execution for periprosthetic fracture fixation. Said methods and apparatus include targeting devices which allow for intimate association of fixed angle locking screws in pre-drilled holes in an existing prosthetic or other components including additional fixation components. Such apparatus and methods further include the use of alignment devices and other components to allow for ease of repair of periprosthetic fractures utilizing the pre-engineered solutions. Such targeting devices are required in specific circumstances as the prosthetics may prevent x-ray imaging and consequently free hand alignment.

Prosthesis Surface Treatment For Soft Tissue Attachment Thereto
20200054457 · 2020-02-20 ·

The improved endoprosthetic device surface treatment encourages soft tissue attachment thereto. A porous mesh surface treatment creates on an outer surface of the endoprosthetic device a three-dimensional surface structure similar to cancellous bone. Suture attachment features are provided at various locations around the treated surface structure to initially affix a vascularized soft tissue to the treated surface. As the patient heals the soft tissue grows and infiltrates the porous mesh surface to achieve an attachment strength substantially equal to the surrounding tissue.

TOTAL JOINT REPLACEMENT INFECTION CONTROL DEVICES AND METHODS

An orthopedic system for delivery of a therapeutic agent to a bone includes an elongate stem adapted to be inserted into an intramedullary canal, an inlet configured to receive the therapeutic agent, and one or more outlets configured to deliver the therapeutic agent to the bone. The elongate stem may comprise one or more protrusions to engage the bone, and one or more channels extending longitudinally therein, fluidly coupled to the inlet. The therapeutic agent flows from the inlet through the one or more channels and exits into the intramedullary canal through the one or more outlets. The system may be configured to allow one or more dimensions of the system to be adjusted to accommodate the anatomy of a patient.

Prosthesis surface treatment and method for soft tissue attachment thereto
10485669 · 2019-11-26 ·

The improved endoprosthetic device surface treatment encourages soft tissue attachment thereto. A porous mesh surface treatment creates on an outer surface of the endoprosthetic device a three-dimensional surface structure similar to cancellous bone. Suture attachment features are provided at various locations around the treated surface structure to initially affix a vascularized soft tissue to the treated surface. As the patient heals the soft tissue grows and infiltrates the porous mesh surface to achieve an attachment strength substantially equal to the surrounding tissue.

SYSTEM FOR PERCUTANEOUSLY ADMINISTERING REDUCED PRESSURE TREATMENT USING BALLOON DISSECTION

A reduced pressure delivery system for applying reduced pressure tissue treatment to a tissue site is provided. The system includes a manifold delivery tube and a balloon having an inner space. The balloon is capable of assuming collapsed and expanded positions. The system further includes a manifold having a plurality of flow channels. The manifold is disposed within the inner space of the balloon. A sharp tip is configured to be delivered within the manifold delivery tube to puncture the balloon.