| Patent application number | Description | Published |
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| 20100157247 | OPHTHALMIC ILLUMINATION FILTER SELECTION MECHANISM - An ophthalmic illumination filter selection mechanism for use with an ophthalmic illumination system. Three filters are mounted in holders on a first shaft and rotatable into an optical light path determined by the ophthalmic illumination system. Each of three cams mounted on a second shaft is configured to move a holder on the first shaft to position the corresponding filter in the optical light path in a predefined sequence relative to the other filters as the second shaft is rotated in a forward direction. Each cam has a backlash that allows the second shaft to be rotated in a reverse direction for a predetermined radial distance to allow a last remaining filter to be removed from the optical light path. Each cam has a cam profile that ensures one filter remains in the optical light path until the next filter is driven into the optical light path when the second shaft is rotated in the forward direction. This mechanism occupies less space than conventional filter selection mechanisms. | 06-24-2010 |
| 20110060319 | ILLUMINATION DEVICE AND METHOD OF USE FOR OPHTHALMIC SURGERY - An illumination device for use in an ophthalmic surgical apparatus, the illumination device including a fiber optic having a proximal end and a connector coupled to the fiber optic. The connector includes one or more of (1) a datum surface disposed a predetermined distance from the proximal end to position the proximal end at a predetermined location within the surgical apparatus, (2) a shutter actuation surface configured and arranged to open a shutter in the surgical apparatus when the connector is being connected to the surgical apparatus, and (3) a visual indicator position to provides a visual indication that the connector is fully inserted into the surgical apparatus. The illumination device may be in a combination with an ophthalmic surgical apparatus. | 03-10-2011 |
| 20110201893 | EXPANDABLE THORACIC ACCESS PORT - A surgical access assembly includes a body having first and second side panels opposing one another and first and second end panels interconnecting the side panels. The first and second end panels are moveable between a folded position and an expanded position to correspondingly move the first and second side panels with respect to one another between an approximated position and a spaced apart position. In the spaced apart position, the first and second side panels are flexed outwardly and apart from one another to define a passageway therebetween. A flexible membrane is coupled to the first and second side panels and extends proximally therefrom. | 08-18-2011 |
| 20110201896 | EXPANDABLE SURGICAL ACCESS PORT - A surgical access assembly is disclosed that is configured and dimensioned for positioning within an opening in tissue providing access to and internal body cavity to facilitate the passage of a surgical instrument into an internal work site. The surgical access assembly includes first and second arms and third and fourth arms. The first and second arms and the third and fourth arms are configured and dimensioned for relative movement such that the surgical access assembly is reconfigurable between a first configuration, wherein a first transverse dimension is defined, and a second configuration wherein a second transverse dimension is defined. The first transverse dimension is smaller than the second transverse dimension. | 08-18-2011 |
| 20120083795 | SPECIMEN RETRIEVAL DEVICE - A specimen retrieval device is provided. The specimen retrieval device includes an applicator. A specimen retrieval bag is operably disposed within the applicator and deployable therefrom. The specimen retrieval bag includes a conduit configured to evacuate air from the specimen retrieval bag. | 04-05-2012 |
| 20120083796 | SPECIMEN RETRIEVAL APPARATUS - A specimen retrieval apparatus includes a housing having an elongated tubular member extending distally therefrom. The elongated tubular member defines a longitudinal axis. An end effector assembly is coupled to a distal end of the elongated tubular member. The end effector assembly is configured to retain a specimen retrieval bag thereon. An articulation mechanism is operatively coupled to the elongated tubular member and the end effector assembly. The articulation mechanism is configured for selectively articulating the end effector assembly with respect to the longitudinal axis of the elongated tubular member. | 04-05-2012 |
| 20120083797 | SURGICAL RETRIEVAL APPARATUS - A surgical retrieval apparatus includes a housing having an elongated sleeve extending therefrom that, together, cooperate to define a lumen extending therethrough. A shaft having an end effector assembly disposed at a distal end thereof is selectively translatable between a first position, wherein the end effector assembly is disposed within the sleeve, and a second position, wherein the end effector assembly extends distally from the sleeve. A specimen retrieval bag is releasably coupled to the end effector assembly and is deployable to an extended position upon movement of the end effector assembly from the first to the second position. | 04-05-2012 |
| Patent application number | Description | Published |
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| 20080232274 | DISTRIBUTED SYNCHRONOUS BATCH RECONFIGURATION OF A NETWORK - A novel alternative concept for handling dynamic provisioning changes and ongoing network reconfiguration and incremental reoptimization in general. A prime motivation is concern about the dependency of existing concepts for dynamic provisioning on the real-time coherence of databases of network state at diverse geographic locations. Not only is the continual updating of such global state everywhere in the network an intensive real-time load, but inevitable incoherencies pose hazards in network operation. The alternative proposal is a framework that makes use precise time synchronization and the computational power of network nodes to solve identical local instances of incremental reoptimization problems in situ. The new scheme removes the database coherency hazard, reduces signaling volumes, and increases resource efficiencies in service provisioning. It also provides a framework in general for continually ongoing incremental or (if desired) total reoptimization of network configuration. The proposal also points directions towards some new research questions such as implementation of optimization models for identical solution on disparate platforms and definition of a variety of incremental batch reoptimization problems. It is thought that this may be one of the first practical application concepts for transport network management that would involve on-line embedded use of operations research methods in communication networks. | 09-25-2008 |
| 20090161536 | SELF-FAULT ISOLATION IN TRANSPARENT p-CYCLE NETWORKS - Span protection has advantages in speed, locality of action and simplicity but requires that the failed span be located in real time. Recent work proposed rapid fault-localization via monitoring cycles (m-cycles). Span-protecting structures (such as p-cycles) operate and are designed separately from the monitoring cycles in this architecture. We have invented a means of designing survivable networks wherein a span protecting p-cycle network inherently includes the properties of a set of fault localizing m-cycles at zero or minimal additional network design cost. Results show that this can be achieved with the same localization effectiveness as separately designed m-cycle solutions, at little or no extra cost. | 06-25-2009 |
| 20120114282 | WHOLE FIBER SWITCHED P-CYCLES - A communication network in which p-cycles are used to rapidly, simply and efficiently provide for the direct replacement of failed fiber sections with whole replacement fibers. As long as the loss budgets are adequate, entire DWDM wavebands can be restored with no switching or manipulation of individual lightpaths. Following a substitution transient, the DWDM layer would never know the break happened. In environments where fiber switching devices are low cost, and ducts are full of dark fiber, this could provide a very low cost alternative to protect an entire DWDM transport layer (or working capacity envelope) against the single largest cause of outage. | 05-10-2012 |
