Abstract:
Multi-mode torque drivers employing anti-backdrive units for managing pedicle screw attachments with vertebrae, and related systems and methods are disclosed. A spinal column includes vertebrae in an articulating structure protecting a spinal cord. Medical intervention may involve limiting the relative motion between vertebrae by fusing vertebrae together with mechanical assemblies, including pedicle screws attached to the vertebrae. A torque driver may be used to form the pedicle screw attachments with vertebrae. By including an anti-backdrive unit and a motor assembly enclosed within a handle body as part of a multi-mode torque driver, the user may apply sequential combinations of manual and motorized torques to the screws with high levels of tactile feedback as desired. In this manner, pedicle screw attachments may be efficiently achieved with fewer injuries to the patient and surgeon while minimizing screw attachment failures.
Abstract:
Die Erfindung betrifft ein Chirurgisches Instrument (300), insbesondere endoskopisches Instrument, mit einem Schaft (302) zur Einführung in eine Körperöffnung eines Patienten, der einen distalen und einen proximalen Abschnitt (304, 306) aufweist, wobei am distalen Abschnitt (304) eine Eingriffseinheit (308) angeordnet ist. Erfindungsgemäß weist der Schaft (302) eine Maßverkörperung (316) auf, die mittels einer Sensoreinrichtung zum Bestimmen einer Eindringtiefe und/oder Drehposition des Instruments abtastbar ist. Ferner betrifft die Erfindung einen Manipulator, einen Haltearm, ein System sowie ein Verfahren.
Abstract:
Disclosed is an external fixation system. The external fixation system can comprise a ring frame, a strut, and a pivot housing connecting the strut to the ring frame. The pivot housing can comprise a first compression member, a second compression member, and a post assembly. The first compression member can be attached to the ring frame. The second compression member can be spaced from the first compression member and attached to the first compression member. The post assembly can be connected to the strut via an attachment post protruding from a spherical component and passing through the first compression member. The spherical component can be compressed between the first compression member and the second compression member to retain the post assembly in a fixed position.
Abstract:
Das Schaftinstrument (1) weist ein Schaftstück (2), das an einem Ende fest mit einem Schaftgriff (3) verbunden ist, und ein Gleitstück (4) auf. Das Gleitstück (4) ist relativ zum Schaftstück (2) in dessen Längsrichtung verschiebbar gelagert und steht an einem Ende derart mit einem unter Vorspannung stehenden Handgriff (5) in Wirkverbindung, dass durch Betätigen des Handgriffs (5) das Gleitstück (4) gegen die Vorspannung verschiebbar ist. An wenigstens zwei voneinander beabstandeten Schaftgelenken (6, 6')am Schaftstück (2) oder am Schaftgriff (3) ist jeweils ein Hebelarm (7, 7') angelenkt. Ferner weist der Handgriff (5) einen Koppelabschnitt (8) auf, welcher die wenigstens zwei Hebelarme (7, 7') an voneinander beabstandeten Koppelgelenken (9,9') gleisinnigschwenkbar miteinander verbindet sowie einen Griffabschnitt (10),welcher sich quer zum Koppelabschnitt (8) und zum Schaftstück (2) erstreckt.
Abstract:
Devices and methods for applying energy to tissue are provided. In one exemplary embodiment, a surgical device includes a monopolar end effector, a cannulated, insulated outer sheath, a translating nozzle coupled to the proximal end of the sheath, and a handle portion coupled to a proximal end of the end effector. Various translating means, such as switches, thumbwheels, rings, and buttons, are associated with the handle portion, and are effective to advance the outer sheath to cover a distal end of the end effector and retract the outer sheath to expose the distal end of the end effector. The translating means are configured in a manner that allows a user to operate the translating means without having to adjust a location of the user's hand on the device. A variety of translating means are provided for, as are methods for cutting, coagulating, irrigating, and suctioning tissue.
Abstract:
Cet instrument (1) comprend une pièce de positionnement (2) permettant de positionner l'instrument (1) vis-à-vis de la tête (101) de l'humérus, et un bloc (3) de guidage de broches à os (51), reliés l'un à l'autre de manière pivotante;la pièce de positionnement (2) inclut une branche courbe (4) s'étendant sur un arc; le bloc de guidage (3) comprend un moyen (7) de liaison pivotante permettant l'assemblage de cette pièce de positionnement (2) et de ce bloc, et comprend deux conduits (16) de guidage de broches, aptes à recevoir des broches à os (51)de façon ajustée. Selon l'invention, -l'arc selon lequel s'étend ladite branche courbe (4) est un arc de cercle de l'ordre de 180°, et cette branche courbe (4) présente une première extrémité formant un ergot de positionnement (5) qui fait saillie radialement en direction de l'autre extrémité de cette branche courbe, et une deuxième extrémité formant un moyen(6)de liaison pivotante audit bloc (3), ce moyen de liaison(6) s'étendant radialement par rapport à la branche courbe (4), de telle sorte que le pivotement qu'il permet se fasse selon un axe de pivotement confondu avec l'axe diamétral de la branche courbe (4), c'est-à-dire l'axe allant d'une extrémité de cette branche à l'autre; -le moyen de liaison pivotante (7) que comprend le bloc de guidage (3) est un moyen de liaison complémentaire de celui de la pièce de positionnement (2), et lesdits conduits (16) de guidage de broches sont parallèles audit axe de pivotement.
Abstract:
A medical device may include a stabilizer (62) configured to be coupled to a port (52) of an insertion device (20). The medical device may further include a shaft (64) configured for telescopic translation within the stabilizer (62) and a grip (66) coupled to the shaft (64). Further, the medical device may include an actuator (68) coupled to the grip (66). The actuator (68) may be axially moveable relative to the grip (66) so as to selectively actuate a distal assembly of the medical device.
Abstract:
L'invention concerne un manche de préhension (1 ) comprenant : - un corps principal (3), - un orifice de réception (4) ménagé au sein du corps principal (3) pour recevoir un embout de travail (2) amovible à coulissement, - un levier de blocage (14) monté à rotation sur le corps principal (3) entre : o une orientation de blocage dans laquelle ii bloque le coulissement de l'embout de travail (2), o une orientation de libération dans laquelle il autorise le coulissement de l'embout de travail (2), - un pivot élastique (15, 16) conçu pour ramener de lui-même le levier de blocage (14) en orientation de blocage, le manche de préhension (1) étant caractérisé en ce que le corps principal (3), le levier de blocage (14) et le pivot élastique (15, 16) viennent de matière les uns avec les autres. Instrumentation chirurgicale.
Abstract:
Bipolar electrosurgical devices may include a handle assembly configured to control movement of components of the electrosurgical device to perform an electrosurgical procedure and a power cord assembly configured to electrically connect the bipolar electrosurgical device with a power source. For bipolar sphincterotomes, an active portion of the handle assembly may include a first active member that contacts and slides across a second active member as the gripping portion moves about a handle stem component of the handle assembly. The power cord assembly may include a pair of return contacts that are shorted together when connected with the handle assembly, which in turn may deactivate an alarm output by the power source.
Abstract:
Bipolar electrosurgical devices may include a handle assembly configured to control movement of components of the electrosurgical device to perform an electrosurgical procedure and a power cord assembly configured to electrically connect the bipolar electrosurgical device with a power source. For bipolar sphincterotomes, an active portion of the handle assembly may include a first active member that contacts and slides across a second active member as the gripping portion moves about a handle stem component of the handle assembly. The power cord assembly may include a pair of return contacts that are shorted together when connected with the handle assembly, which in turn may deactivate an alarm output by the power source.