An osteotome blade that is optimized for cutting and removal of bone cement such as from an intramedullary canal during revision surgery. The blade may have a body and a tip, wherein the body cross-section and tip are trough-shaped and the tip has a swept-back configuration. Further away from the cutting region, the blade may have a transition region and a hub suitable to be grasped in a power tool. There may also be provided a scoring blade, and a method may comprise scoring grooves into bone cement using the scoring blade, followed by removal of bone cement using the cement removal blade.
Provided is an osteotome handpiece that may be driven by compressed gas. In an embodiment, a spherical piston may be movable inside a cylinder having a liner, which may be made of a low-friction material such as a fluoropolymer. The spherical piston may impact a blade holder that transmits force to a blade. A piston return spring may be provided, along with a piston washer to avoid any possible outward deformation of the spring. The blade holder may be retained by a split and threaded retaining collar. Single-stroke or multi-stroke operation may be chosen by the user. The device has long-operating low-maintenance advantages.
Provided is an osteotome handpiece that may be driven by compressed gas. In an embodiment, a spherical piston may be movable inside a cylinder having a liner, which may be made of a low-friction material such as a fluoropolymer. The spherical piston may impact a blade holder that transmits force to a blade. A piston return spring may be provided, along with a piston washer to avoid any possible outward deformation of the spring. The blade holder may be retained by a split and threaded retaining collar. Single-stroke or multi-stroke operation may be chosen by the user. The device has long-operating low-maintenance advantages.
An osteotome blade that is optimized for cutting and removal of bone cement such as from an intramedullary canal during revision surgery. The blade may have a body and a tip, wherein the body cross-section and tip are trough-shaped and the tip has a swept-back configuration. Further away from the cutting region, the blade may have a transition region and a hub suitable to be grasped in a power tool. There may also be provided a scoring blade, and a method may comprise scoring grooves into bone cement using the scoring blade, followed by removal of bone cement using the cement removal blade.
Embodiments of the invention comprise a blade that has a gripping portion, a transition portion and a distal portion that may have a cutting edge. The gripping portion may be V-shaped in cross-section, or, more generally, not lying in a single plane. Some embodiments are straight along a longitudinal direction. Embodiments may comprise a transition portion that is complex having sub-regions, or a distal portion having a cross-sectional shape that is curved or V-shaped, or a distal portion having a tip of a different material. Other embodiments have a shape that follows a longitudinal path that is curved either concavely or convexly or both. Distal tip design parameters for good cutting properties are discussed.
A61B 17/16 - Instruments pour réaliser une ostéoclasieForets ou ciseaux pour osTrépans
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A blade for use in an osteotome or other cutting device. The blade may have, in sequence, a cutting portion, a transition portion, and a gripping portion, with the transition portion being located between the cutting portion and the gripping portion. The cutting portion may be planar and have at least one cutting edge. The gripping portion may be non-planar. The transition portion may be smoothly contoured. The non-planar nature of the gripping portion may provide increased rigidity of the blade. All of the blade may have uniform thickness of material. Also provided may be a chuck for gripping the blade. The chuck may have an upper nest and a lower nest that in combination closely fit around the gripping portion. The chuck may have a movable pin that locks the gripping portion into the chuck. A portion of the chuck may be spring-loaded.
A container for a product uses a location circuit for determining the location of the container, a storage element for storing a container identification code, a plurality of data acquisition components for acquiring status of at least two characteristics of at least one of the container, the product and a user of the product, and a communication interface for generating and sending a communication signal including (a) the container identification code from the storage element, (b) the location of the container from the location circuit, and (c) the status of the at least two characteristics from the data acquisition components. The container may be an auto-injector for containing a medicament, or a case for containing an item such as an auto-injector. Generally, the location circuit uses the global positioning system (GPS). The data acquisition components are chosen from a camera, and at least one sensor for sensing at least one of a thermal image, vibration, temperature, humidity, a chemical and an audio signal. The characteristic may be use of the product, or lack of use of at least one of the container and the product.
A61B 1/00 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments
A61B 1/04 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments combinés avec des dispositifs photographiques ou de télévision
A61B 1/06 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments avec dispositifs d'éclairement
A61M 5/00 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras
A61M 5/24 - Seringues à ampoules, c.-à-d. seringues à aiguille utilisables avec des ampoules ou des cartouches échangeables, p. ex. automatiques
A61M 5/315 - PistonsTiges de pistonGuidage, blocage, ou limitation des mouvements de la tigeAccessoires disposés sur la tige pour faciliter le dosage
A61M 37/00 - Autres appareils pour introduire des agents dans le corpsPercutanisation, c.-à-d. introduction de médicaments dans le corps par diffusion à travers la peau
G02F 1/01 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
G06Q 50/00 - Technologies de l’information et de la communication [TIC] spécialement adaptées à la mise en œuvre des procédés d’affaires d’un secteur particulier d’activité économique, p. ex. aux services d’utilité publique ou au tourisme
G08B 23/00 - Alarmes réagissant à des conditions indésirables ou anormales, non spécifiées
G08C 19/04 - Systèmes de transmission de signaux électriques dans lesquels le signal transmis est l'amplitude d'un courant ou d'une tension utilisant une résistance variable
G08C 19/10 - Systèmes de transmission de signaux électriques dans lesquels le signal transmis est l'amplitude d'un courant ou d'une tension utilisant une capacité variable
H01L 25/00 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
H04N 5/91 - Traitement du signal de télévision pour l'enregistrement
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