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Overmolded grasper jaw

ActiveUS7494501B2Facilitate closing the jaw spinesEnhanced advantageSurgical forcepsPlastic materialsMetallic materials
The invention is directed to a surgical instrument comprising an elongate tube extending along an axis including a camming rod and an actuation mechanism operably connected to the camming rod, the camming rod having a camming pin and a camming projection; a first jaw spine having a first cam slot, a first interior camming surface, and a first exterior camming surface; and a second jaw spine having a second cam slot, a second interior camming surface, and a second exterior camming surface, the second jaw spine pivotally connected to the first jaw spine at a common pivot pin operably connected to the elongate tube to open and close the jaw spines in response to movement of the actuation mechanism. The camming pin rides along the first and second interior camming surfaces and operates to close the jaw spines when the camming rod is moved proximally. When the camming rod moves distally, the camming projection rides on the first and second exterior camming surfaces formed on the proximal sides of the respective first and second jaw spines and operates to open the jaw spines. A feature of the invention is one camming surface on each jaw spine can facilitate closing the jaw spines while the other camming surface on each jaw spine can facilitate opening the jaw spines. These two camming surfaces on each jaw spine can be widely separated. The jaw spines can be formed of a metallic material and are overmolded with an atraumatic plastic material. By overmolding the plastic onto the metal spine, an atraumatic outer surface can be formed of the plastic material along with a high degree of detail.
Owner:APPL MEDICAL RESOURCES CORP

Electroactive polymer actuated medical devices

The present invention is directed to novel apparatus for use in medical procedures relating to tubular body fluid conduits. According to a first aspect of the invention, a filter apparatus is provided for delivery over a guidewire within a tubular body conduit, such as a blood vessel. The filter apparatus comprises: (a) a filter element transformable between a collapsed state and a deployed state, wherein the filter element is adapted to filter particulate matter from fluid within the tubular body conduit while in the deployed state; and (b) a locking member comprising one or more electroactive polymer actuators which switch the locking member between (i) a locking state wherein the locking member securely engages the guidewire and (ii) a release state wherein the locking member is movable along the length of the guidewire. According to a second aspect of the invention, a connector apparatus is provided for use in making an anastomotic connection between first and second tubular fluid conduits in a patient. The connector apparatus comprises: (a) a locking member, which further comprises one or more electroactive polymer actuators that switch the locking member between a locking state and a release state; and (b) a connector body that is configured to permit flow of bodily fluid between the first and second tubular fluid conduits. The connector body has a first portion configured for insertion into an axial end of the first tubular fluid conduit and a second portion configured for insertion through a sidewall of the second tubular fluid conduit. The second portion of the connector body is further configured to securely engage the locking member when the locking member is in the locking state.
Owner:BOSTON SCI SCIMED INC

Spoken language interface

A spoken language interface comprises an automatic speech recognition system and a text to speech system controlled by a voice controller. The ASR and TTS are connected to a telephony system which receives user speech via a communications link. A dialogue manager is connected to the voice controller and provides control of dialogue generated in response to user speech. The dialogue manager is connected to application managers each of which provide an interface to an application with which the user can converse. Dialogue and grammars are stored in a database as data and are retrieved under the control of the dialogue manager and a personalisation and adaptive learning module. A session and notification manager records session details and enables re-connection of a broken conversation at the point at which the conversation was broken.
Owner:VOX GENERATION LTD

System, method, and apparatus for determining and using the position of wireless devices or infrastructure for wireless network enhancements

A system and method for estimating the position of wireless devices within a wireless communication network combines measured RF channel characteristics for the wireless device with one or more predicted performance lookup tables, each of which correlates an RF channel characteristic to some higher order network performance metric and / or a position within an environmental model. Measured RF channel characteristics for wireless devices are compared against the performance lookup tables to determine the sent of lookup tables that most closely match the measured RF channel characteristics. The positions within the environmental model corresponding to the selected set of matching lookup tables are identified as possible locations for the wireless device. The performance lookup tables are uniquely constructed by site-specific location, technology, wireless standard, and equipment types, and / or the current operating state of the communications network.
Owner:EXTREME NETWORKS INC

Internet navigation using soft hyperlinks

A system for internet navigation using soft hyperlinks is disclosed, in connection with an illustrative information retrieval system with which it may be used. The navigation tool provides freedom to move through a collection of electronic documents independent of any hyperlink which has been inserted within an HTML page. A user can click on any term in a document page, not only those that are hyperlinked. For example, when a user clicks on an initial word within the document, the disclosed system employs a search engine in the background to retrieve a list of related terms. In an illustrative embodiment, a compass-like display appears with pointers indicating the first four terms returned by the search engine. These returned terms have the highest degree of correlation with the initial search term in a lexical knowledge base that the search engine constructs automatically. The disclosed system allows the user to move from the current document to one of a number of document lists which cover different associations between the initial word clicked on by the user and other terms extracted from within the retrieved list of related terms. The disclosed system may further allow the user to move to a document that is considered most related to the initial word clicked on by the user, or to a list of documents that are relevant to a phrase or paragraph selection indicated by the user within the current page.
Owner:FIVER LLC

Membrane pump with stretchable pump membrane

The invention relates to membrane pumps for delivering liquids. More specifically, a pump is provided having a pump housing with a pump cavity formed between first and second wall portions thereof, and an pump membrane pump membrane having first and second membrane surfaces arranged within the pump cavity, whereby a pump chamber is provided between the first wall portion and the first membrane surface, and an actuation chamber is provided between the second wall and the second membrane surface. Inlet means comprising an inlet valve in fluid communication with the pump chamber, and outlet means comprising an outlet valve in fluid communication with the pump chamber are provided. The pump membrane has a maximum volume position, and a drained volume position in which the first membrane surface in a stretched state abuts the first wall. To drive the membrane, actuating means for periodically shifting the pump membrane between the maximum volume position and the drained volume position is provided, thereby, in a situation of use, providing a flow of fluid.
Owner:NOVO NORDISK AS

Hand activated ultrasonic instrument

InactiveUS20050033337A1Promote convenientPromote efficient useUltrasound therapySurgical instrument detailsSurgical ClampsBiological activation
An ultrasonic surgical clamp coagulator apparatus is configured to effect cutting, coagulation, and clamping of tissue by cooperation of a clamping mechanism of the apparatus with an associated ultrasonic end-effector. The handle of the apparatus is configured to permit hand activation for cutting, coagulation, and clamping of tissue during surgical procedures. In order to promote convenient and efficient use of the apparatus, the fingertip controls are provided directly into the disposal shears handle in a position that allows surgeons to activate the device without repositioning their hand. The two buttons provide independent control of the two power levels available from the generator, matching the two foot pedal configuration of the prior art.
Owner:CILAG GMBH INT +1

Method of forming carbon polymer film using plasma CVD

A method of forming a hydrocarbon-containing polymer film on a semiconductor substrate by a capacitively-coupled plasma CVD apparatus. The method includes the steps of: vaporizing a hydrocarbon-containing liquid monomer (CαHβXγ, wherein α and β are natural numbers of 5 or more; γ is an integer including zero; X is O, N or F) having a boiling point of about 20° C. to about 350° C. which is not substituted by a vinyl group or an acetylene group; introducing the vaporized gas and CO2 gas or H2 gas into a CVD reaction chamber inside which a substrate is placed; and forming a hydrocarbon-containing polymer film on the substrate by plasma polymerization of the gas, thereby reducing extinction coefficient (k) at 193 nm and increasing mechanical hardness.
Owner:ASM JAPAN +1

Medical apparatus system having optical fiber load sensing capability

Apparatus is provided for diagnosing or treating an organ or vessel, wherein a device having at least two optical fiber sensors disposed in a distal extremity thereof is coupled to processing logic programmed to compute a multi-dimensional force vector responsive to detected changes in the optical characteristics of the optical fiber sensors arising from deflection of the distal extremity resulting from contact with the tissue of the wall of the organ or vessel. The force vector may be used to facilitate manipulation of the catheter either directly or automatically using a robotic system.
Owner:ST JUDE MEDICAL INT HLDG SARL

Surgical stapling instruments including a cartridge having multiple staple sizes

A surgical stapling apparatus includes a staple cartridge and an anvil member. The staple cartridge includes a plurality of surgical fasteners disposed in rows of retention slots. The staple cartridge may have an annular or linear configuration of retention slots. The tissue contacting surface of the staple cartridge may be tapered or stepped. The anvil member has a tissue contacting surface that includes a number of pockets arranged for substantially aligning with the retention slots. In addition, the tissue contacting surface of the anvil member may complement the tissue contacting surface of the staple cartridge.
Owner:TYCO HEALTHCARE GRP LP

Systems and methods for stabilization of bone structures

A dynamic bone stabilization system is provided. The system may be placed through small incisions and tubes. The system provides systems and methods of treating the spine, which eliminate pain and enable spinal motion, which effectively mimics that of a normally functioning spine. Methods are also provided for stabilizing the spine and for implanting the subject systems.
Owner:EXACTECH INC

Text-to-speech method and system, computer program product therefor

A text-to-speech system adapted to operate on text in a first language including sections in a second language, includes a grapheme / phoneme transcriptor for converting the sections in the second language into phonemes of the second language; a mapping module configured for mapping at least part of the phonemes of the second language onto sets of phonemes of the first language; and a speech-synthesis module adapted to be fed with a resulting stream of phonemes including the sets of phonemes of the first language resulting from mapping and the stream of phonemes of the first language representative of the text, and to generate a speech signal from the resulting stream of phonemes.
Owner:CERENCE OPERATING CO

Laminated ultrasonic end effector

A laminated ultrasonic waveguide and a method of fabrication thereof including stamping at least two pieces of sheet stock to form stamped parts of the laminated ultrasonic waveguide. The stamped parts are then laminated together to form a laminated ultrasonic waveguide for transferring ultrasonic acoustic energy along a longitudinal axis of the laminated ultrasonic waveguide. The laminated ultrasonic waveguide may be part of an ultrasonic surgical instrument having an active tip end-effector, which is placed in contact with tissue of a patient to couple ultrasonic energy transferred along the laminated ultrasonic waveguide to the tissue. The stamped pieces of sheet stock can also be stamped to form one or more channels extending along the length of the laminated ultrasonic waveguide. The laminated ultrasonic waveguide can also define a connector at a proximal end thereof to transfer ultrasonic energy into the laminated ultrasonic waveguide. In different embodiments, the laminated ultrasonic waveguide comprises first and second (and third or more) stamped pieces of sheet stock that are laminated together.
Owner:ETHICON ENDO SURGERY INC

Everted filter device

Everting filter devices and methods for using the devices, including using the devices as intra-vascular filters to filter thrombus, emboli, and plaque fragments from blood vessels. The filter devices include a filter body nominally tubular in shape and having a large proximal opening. The filter body can extend from a proximal first end region distally over the non-everted exterior surface of the filter, further extending distally to a distal-most region, then converging inwardly and extending proximally toward the filter second end region, forming a distal everted cavity. The degree of eversion of the filter can be controlled by varying the distance between the filter first end region near the proximal opening and the closed second end region. Bringing the filter first and second end regions closer together can bring filter material previously on the non-everted filter exterior to occupy the distal-most region. The everting process can also bring filter material previously in the distal-most position further into the distal everted cavity. The filter devices can be used to remove filtrate from body vessels, with the filtrate eventually occluding the distal-most region. The filter can then be further everted, bringing fresh, unoccluded filter material into place to provide additional filter capacity. Some everting filters have the capability of switching between occluding and filtering modes of operation, thereby allowing a treating physician to postpone the decision to use filtering or occluding devices until well after insertion of the device into the patient's body.
Owner:TYCO HEALTHCARE GRP LP
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