Abstract: The cannula handle housing includes a recessed seat, wings extending outwardly from the recessed seat in the housing for engagement with a physician's hand and a stem which extends from said housing to hold a portion of a cannula The cannula has a distal sharpened end and a proximal end secured to a Luer lock. The stylet includes a longitudinal member having a sharp tip with the other end of the stylet formed with an anvil structure which is molded into a stylet cap. The stylet cap is a housing which includes a projection portion having a complimentary configuration to the recessed seat formed in said cannula housing for interlocking with the Luer lock of the cannula housing. The stylet inserts into the cannula and with a twist, locks about the Luer lock on the proximal end of the cannula.
June 18, 2002
Date of Patent:
July 25, 2006
Musculoskeletal Transplant Foundation
Barbara L. Merboth, Adam Stephens, Yukiko Naoi, Kazuna Tanaka, Jeffrey Kapec
Abstract: A double sterile container assembly for storing sterile allograft tissue implant forms constructed with an outer container defining an open faced cavity and a flange extending outward from the cavity and a stepped recess formed in the flange surrounding said cavity. An inner container sized to fit in the open faced cavity also defines an open faced cavity and a flange extending outward from the cavity with the inner container flange being of a dimension to fit into the stepped recess of the outer container. An insert retainer sized to fit into the inner container cavity defines a shaped structure therein to hold a tissue implant form. A permeable cover is sealed to the flange of the inner container covering the inner container cavity; and an outer cover is sealed to the flange of the outer container covering outer container cavity to form a double sterile implant container assembly.
Abstract: An apparatus assembly for forming a compound dessert in a predetermined dome shape including a first outer mold having a dome shaped bowl with a closed semi-spherical end and an open end, and a ring shaped support base secured to the closed end of bowl body. A cover including a second dome shaped bowl of a smaller diameter and a surrounding circular skirt is mounted to an extended portion of the outer mold with the second bowl extending to a chamber of the first outer mold.
Abstract: A sterile composite bone graft for use in implants comprising an I beam cortical bone load bearing member upon which is mounted a trapezoidal shaped cancellous member. The allograft cancellous bone member defines tapered side walls, a flat proximal end wall and a flat distal end wall and a channel into the body leading from the front wall to the end wall. The I beam cortical member has a front section with a flat rear surface. A rectangular support bar extends from the flat rear surface to the flat rear wall of the rear section forming a connecting bar which fits into the channel cut into the cancellous member body. The I beam cortical member support bar and the channel of the cancellous member mate together to hold both component members in stable relationship. Pins may be mounted in both members on opposite sides of the members interface.
Abstract: A wire storage rack comprising an adjustable plastic coated wire rack which can be mounted on any planar base. The wire rack has side posts provided with a threaded end and an upper offset end. A “U” shaped cross piece connects the side posts. The cross piece has transverse legs which are secured to a respective side post and extend outward therefrom with the portion of the leg adjacent to the “U” shaped portion forming a curved indentation which serves as a lid seat. The “U” shaped portion is curved backward toward the side posts past the lid seat to securely hold a lid placed therein in place.
Abstract: The invention is directed toward a cancellous bone block assembly with at least one tendon replacement member being extended between two shaped cancellous bone blocks. Each substantially cylindrically shaped cancellous bone block has a central through going bore, a flat exterior longitudinal surface and a channel longitudinally cut in the exterior of the bone block body opposite the flat longitudinal surface. The tendon replacement member is inserted through the central through going bore around the end of the block and looped back along the flat longitudinal side where it is tied to the back of the tendon loop. A channel cut in the exterior surface is adapted to receive an interference screw to keep the block anchored in a bone tunnel previously cut in the respective bone.
Abstract: The present invention is directed toward a grooved director with a built in balloon which is inflated by a pump to a predetermined pressure to expand the walls of a collapsed vertebra. The device is inserted into the body of the compressed vertebra and the grooved director is positioned and aimed in a direction under the compressed superior end plate of the vertebral body. The balloon inside of the grooved director is inflated and the force and direction of balloon inflation restores the height of the fractured vertebrae. The balloon is deflated and the grooved director is circumferentially rotated while intermittently inflating and deflating the balloon to creates a symmetrical space within the center of the vertebral body. The balloon is deflated and the grooved director device with balloon is removed leaving a rebuilt vertebra which may be filled with a biocompatible material.
Abstract: The present invention is directed toward a polyvinyl acetal sponge with a smooth outer low durometer silicone skin having less porosity then the foam center. The PVA sponge is washed free of formaldehyde, dried and hydrated and a thin coating of less than 1 mm low durometer silicone is applied to the surface of the sponge and heated at a low temperature ranging from 100° F. and 150° F. over 8 to 16 hours to cure the silicone skin bonding it to the sponge increasing the tear strength of the skin while preserving elasticity. The composite wound dressing allows moisture adsorption through the skin into the PVA sponge body but presents an outer surface precluding wound growth into the sponge material.
Abstract: A miniature articulated tip instrument for surgical and like uses, comprising: a thumb housing with an elongated fixed jaw assembly mounted thereto and extending therefrom. A movable jaw actuator member is slidably mounted in a groove formed in the said fixed jaw assembly, the proximal end of the actuator member being seated in a finger housing which is mounted to and spring biased from the thumb housing. A movable jaw defining at least one arcuate projection extending therefrom for pivotal engagement with the actuator member is additionally provided with a second arcuate projection and a concnetric cutout on its opposite side from the second arcuate projection to engage the fixed jaw member and provide a pivot point. The actuator member drives the movable jaw member in a pivoting motion within a throughgoing slot formed in the fixed jaw member within a range of movement with respect to the fixed jaw assembly between extended and retracted positions for effecting selective user controlled working movement.
Abstract: The invention is directed toward a malleable bone putty and a flowable gel composition for application to a bone defect site to promote new bone growth at the site which comprises a new bone growth inducing compound of demineralized lyophilized allograft bone powder. The bone powder has a particle size ranging from about 100 to about 850 microns and is mixed in a high molecular weight hydrogel carrier, the hydrogel component of the carrier ranging from about 0.3 to 3.0% of the composition and having a molecular weight of about at least 10,000 Daltons. The composition contains about 25% to about 40% bone powder and can be additionally provided with BMP's and a sodium phosphate buffer.