4813results about How to "Weaken energy" patented technology

A working end of a surgical instrument that carries first and second jaws for delivering energy to tissue. In a preferred embodiment, at least one jaw of the working end defines a tissue-engagement plane that contacts the targeted tissue. The cross-section of the engagement plane reveals that it defines (i) a first surface conductive portion or a variably resistive matrix of a temperature-sensitive resistive material or a pressure-sensitive resistive material, and (ii) a second surface portion coupled to a fixed resistive material that coupled in series or parallel to a voltage source together with the first portion. In use, the engagement plane will apply active Rf energy to ohmically heat the captured tissue until the point in time that a controller senses an electrical parameter of the tissue such as impedance. Thereafter, the controller switches energy delivery to the second surface portion that is resistively heated to thereby apply energy to tissue by conductive heat transfer.

A working end of a surgical instrument that carries first and second jaws for delivering energy to tissue. In a preferred embodiment, at least one jaw of the working end defines a tissue-engagement plane that contacts the targeted tissue. The cross-section of the engagement plane reveals that it defines a surface conductive portion that overlies a variably resistive matrix of a temperature-sensitive resistive material or a pressure-sensitive resistive material. An interior of the jaw carries a conductive material or electrode that is coupled to an Rf source and controller. In an exemplary embodiment, the variably resistive matrix can comprise a positive temperature coefficient (PTC) material, such as a ceramic, that is engineered to exhibit a dramatically increasing resistance (i.e., several orders of magnitude) above a specific temperature of the material. In use, the engagement plane will apply active Rf energy to captured tissue until the point in time that the variably resistive matrix is heated to its selected switching range. Thereafter, current flow from the conductive electrode through the engagement surface will be terminated due to the exponential increase in the resistance of variably resistive matrix to provide instant and automatic reduction of Rf energy application. Further, the variably resistive matrix can effectively function as a resistive electrode to thereafter conduct thermal energy to the engaged tissue volume. Thus, the jaw structure can automatically modulate the application of energy to tissue between active Rf heating and passive conductive heating of captured tissue to maintain a target temperature level.

An electrosurgical medical device and technique for creating thermal welds in engaged tissue that provides very high compressive forces. In one exemplary embodiment, at least one jaw of the instrument defines a tissue engagement plane carrying first and second surface portions that comprise (i) an electrically conductive material and (ii) a positive temperature coefficient (PTC) material having a selected increased resistance that differs at each selected increased temperature over a targeted treatment range. One type of PTC material is a doped ceramic that can be engineered to exhibit a selected positively sloped temperature-resistance curve over about 37° C. to 100° C. The 70° C. to 100° C. range can bracket a targeted “thermal treatment range” at which tissue welded can be accomplished. The engineered resistance of the PTC matrix at the upper end of the temperature range will terminate current flow through the matrix. In one mode of operation, the engagement plane cause ohmic heating within tissue from Rf energy delivery tissue PTC matrix is heated to exceed the treatment range. Thereafter, energy density in the engaged tissue will be modulated as the conductivity of the second portion hovers within the targeted treatment range to thereby provide optical tissue heating for purposes of tissue welding.

An electrosurgical medical device for creating thermal welds in engaged tissue that provides general grasping and dissecting functionality. In an exemplary embodiment, at least one jaw of the instrument defines a tissue engagement plane carrying electrosurgical energy delivery means. The jaw assembly, in one mode of operation, can be used for general grasping and dissecting purposes wherein the jaws close in a non-parallel manner so that the distalmost jaw tip only engage tissue with little movement of the actuator lever in the handle of the instrument. In another mode of operation, the jaw assembly closes close in a parallel manner under very high compression to enable tissue welding.

An electrosurgical working end for automatic modulation of active Rf density in a targeted tissue volume. The working end of the probe of the present invention defines a tissue-engagement surface of an elastomeric material with conductive elements that extend therethrough. In one embodiment, the expansion of the elastomeric material can de-couple the conductive elements from an interior electrode based temperature to modulate current flow. In another embodiment, the elastomeric material can couple and de-couple the conductive elements from an interior electrode based engagement pressure to modulate current flow.

Disclosed is a light-emitting element having high emission efficiency, capable of driving at low voltage, and showing a long lifetime. The light-emitting element contains a compound between a pair of electrodes, and the compound is configured to give a first peak of m/z around 202 and a second peak of m/z around 227 in a mass spectrum. The first and second peaks are product ions of the compound and possess compositions of C₁₆H₉ and C₁₇H₁₀N, respectively, which are derived from a dibenzo[f,h]quinoline unit.

A system uses an intelligent load controller for managing use of a consumable resource at an associated load. The controller has a resource measuring component for measuring the rate of use of the resource by the associated load, including measuring at least one of an instantaneous usage rate and a usage rate over an integration period and a load status component for receiving load status data for the associated load. The controller also has a communication component for receiving control messages from and sending load status messages to other associated controllers; a memory for storing a load control goal set; and a load control computer program responsive to the resource measuring component, the load status component, the control messages from other associated controllers and the load control goal set, to determine a load operating level for, and provide control commands to, the associated load.

The present invention is a film deposition apparatus configured to deposit a film on a substrate that has been loaded into a vacuum container via a transfer opening and placed on a table in the vacuum container, by supplying a process gas to the substrate from a process-gas supply part opposed to the table under a vacuum atmosphere, while heating a table surface of the table, the film deposition apparatus comprising: an elevating mechanism configured to vertically move the table between a process position at which the substrate is subjected to a film deposition process, and a transfer position at which the substrate is transferred to and from an external transfer mechanism that has entered from the transfer opening; a surrounding part configured to surround the table with a gap therebetween, when the table is located at the process position, so that the surrounding part and the table divide an inside of the vacuum container into an upper space, which is located above the table, and a lower space, which is located below the table; a vacuum exhaust conduit in communication with the upper space, through which a process atmosphere in the upper space is discharged to create a vacuum in the upper space; a heating unit configured to heat a gas contact region ranging from the upper space to the vacuum exhaust conduit, to a temperature higher than a temperature allowing adhesion of reactant; and a heat insulation part disposed between the heating unit and a lower part of the vacuum container surrounding the lower space.

An apparatus and method are provided for power management in a computer operating system. The method includes providing a plurality of policies which are eligible to be selected for a component, automatically selecting one of the eligible policies to manage the component, and activating the selected policy to manage the component while the system is running without rebooting the system.

The invention is an audio-video communication and answering system, where system's properties make it particularly suitable as a Digital Video Messaging System for, amongst other things, answering the door. The elements of the system are a DVMS outside module that is a wireless pocket PC with a proximity sensing, a video camera, a microphone, a speaker, a digital transmitter, a digital receiver, and a keypad; a computerized controller that is a personal computer with components for plaving and recording video and audio media; a DVMS inside module having a screen, a microphone, a speaker, a digital transmitter, a digital receiver, and a keypad; a wireless mode; and a DVMS database application with a graphic user interface. The computerized controller is in communication with a public switching telephone network enabling communication with remote peripheral devices, such as a cell phone, PDA, or computer. The system is based on the Microsoft Windows® Mobile 802.11b to coordinate communication between elements. The database application coordinates responses to prompts and events. The proximity sensor activates the system when the sensor detects the visitor's presence. This then starts a series of prompts and interaction prescribed by the application. The system includes an electrically actuated lock that can be actuated through a code entry or remotely. The system enables a visitor to communicate with an occupant either offsite or onsite, where the visitor never knows the occupant's location, unless the occupant discloses his location.

The present invention provides an exfoliated graphite-based hybrid material composition for use as an electrode, particularly as an anode of a lithium ion battery. The composition comprises: (a) micron- or nanometer-scaled particles or coating which are capable of absorbing and desorbing alkali or alkaline metal ions (particularly, lithium ions); and (b) exfoliated graphite flakes that are substantially interconnected to form a porous, conductive graphite network comprising pores, wherein at least one of the particles or coating resides in a pore of the network or attached to a flake of the network and the exfoliated graphite amount is in the range of 5% to 90% by weight and the amount of particles or coating is in the range of 95% to 10% by weight. Also provided is a lithium secondary battery comprising such a negative electrode (anode). The battery exhibits an exceptional specific capacity, excellent reversible capacity, and long cycle life.

A microwave ablation system is disclosed. The system includes a microwave antenna assembly that includes an identification device configured to store an optimal frequency of the microwave antenna assembly. The system also includes a generator configured to couple to the microwave antenna assembly and to output microwave energy at an operational frequency. The generator is further configured to read the optimal frequency from the identification device and to configure the operational frequency to substantially match the optimal frequency.

A method of generating energy in a power plant (30) having a gas turbine (29), includes a first step a gas containing air (1) is compressed in a first compressor (2) of the gas turbine (29), a second step the compressed gas (3, 3a, 3b; 5; 7a, 7b) is fed to a combustion process with the addition of fuel (8) in a combustor (23), a third step the hot flue gas (9) from the combustor (23) is expanded in an expander or a turbine (10), driving a generator (18), of the gas turbine (29) while performing work, and a fourth step a partial flow of the expanded flue gas (11) is recirculated to the inlet of the first compressor (2) and admixed with the gas containing air (1). Carbon dioxide (CO₂) is separated from the compressed gas (3, 3a, 3b; 5; 7a, 7b) in a CO₂ separator (6) before the third step. In such a method, the overall size and energy costs are reduced by virtue of the fact that, to permit increased CO₂ concentrations in the CO₂ separator (6), not more than about 70% of the carbon dioxide contained in the compressed gas (3, 3a, 3b; 5, 5a, 5b; 7a, 7b) is removed from the compressed gas (3, 3a, 3b; 5, 5a, 5b; 7a, 7b).

Plasma damage in ultra low k dielectric materials during formation of a dual damascene metal interconnect structure is reduced by providing a protective spacer on sidewalls of a line trench. A densified trench bottom region may be additionally formed directly beneath an exposed horizontal surface of the line trench. The protective spacer and/or the densified trench bottom region protects an ultra low k intermetal dielectric layer from plasma damage during a plasma strip process that is used to remove a disposable via fill plug employed in the dual damascene metal interconnect structure.

A helmet system that enables a user of the helmet system to customize the helmet system according to personal taste, a task at hand, responsibilities within a tactical group (e.g., communications, command, etc.), and/or according to other parameters. The customization of the helmet system may include a customization of electronics modules carried on the helmet system that optionally provide communications, environment detection, health or biometrics monitoring, power, information transmission/reception, information processing, and/or other functionalities. The customization of the helmet system may include a customization of structural components that enable the user to balance the structural protection provided to the user against other considerations. The other considerations may include, for example, weight, form factor, comfort, and/or other considerations.

A memory element comprising a volume of phase change memory material; and first and second contact for supplying an electrical signal to the memory material, wherein the first contact comprises a conductive sidewall spacer. Alternately, the first contact may comprise a contact layer having an edge adjacent to the memory material.