271results about How to "Avoid Insufficient Sealing" patented technology

Patient interface components and / or associated head gear and adjustment systems improve sealing and / or patient comfort and / or ease of use. The interface comprising an inflating or ballooning seal. The headgear assembly can be connected to the interface with an elastic component and an inelastic component. The elastic component enabling a course fitting of the interface to the patient and the inelastic component enabling a final fitting of the interface to the patient.

An arrangement for producing a sample of body fluid from a wound opening created in a skin surface at a sampling site includes: a housing, the housing comprising a first opening; a skin interface member disposed in the first opening, the skin interface member comprising an inner member having a second opening, and an outer member at least partially surrounding the inner member and attached to the first opening; and at least one skin-penetration member configured and arranged to project within the second opening. Arrangements having alternatively constructed skin interface members are also described.

An emboli filtration apparatus is provided comprising a guide wire having a filter element captured thereon, so that the guide wire is free to rotate and translate while the filter element remains stationary. The apparatus allows for movement and rotation of the guide wire as devices are advanced over it to treat occlusive disease, substantially without dislodging the filter element. In a preferred embodiment, the guide wire comprises a proximal stop configured to reposition the filter element during a medical procedure without having to remove or insert additional interventional devices.

A closure valve used in a fluid dispensing assembly. The closure valve contains a housing, poppet, sleeve, and a biasing member. The closure valve provides simplified sealing structures for preventing product leakage and spill. The sealing structures being integrally molded sealing structures.

An insulated cooler with an integral padlock system comprises a hinged lid and a padlock receiving loop located on the lid. A second, corresponding receiving loop is disposed on the cooler. When closed, a user can apply a padlock to the first and second receiving loop simultaneously to lock the lid in a closed position to enable a user to leave the cooler unattended while full of food or beverages in a public location and prevent unauthorized persons and animals from getting into the cooler.

An improved process for permanently attaching an overlay to a wheel disc, wherein the overlay is aligned and spaced apart from the wheel disc. A mold is created by a combination of the overlay, wheel disc and localized nests that engage at predetermined times during foam filling to close the mold. The mold is adequately sealed so that there is no foam leakage as the foam expands to fill the mold and, therefore, no final trimming of excess foam is required. The improved process is capable of accommodating a wheel having turbine openings therein.

An airway device for insertion into the trachea or bronchi of a human or animal, comprising an elongate flexible tube (10) having a distal end, a proximal end and a lumen therethrough, the device further comprising a cuff (11) located at or near the distal end of the flexible tube, wherein the cuff comprises an inner inflatable region (12) and an outer soft barrier region (13) adapted to prevent the walls of the airway coming into direct contact with the inner inflatable region when the cuff is in position and inflated.

A defective display is obviated by preventing the intrusion of a foreign substance in a gap defined between a constitutional member, such as an upper frame, an intermediate frame, a backlight device or the like, and a display panel and by suppressing the application of a stress to the display panel. A shaped elastic member is interposed between a liquid crystal display panel and a mold of a backlight device. One longitudinal side surface of the shaped elastic member is fixedly mounted on the backlight device and the other longitudinal side surface of the shaped elastic member is non-fixedly mounted on the liquid crystal display panel, such that the other longitudinal side surface is always brought into contact with the liquid crystal display panel to prevent the generation of a gap therebetween.

A removable nose pad cushion adherable to a medical face mask and more particularly to a positive pressure ventilation mask approximately where the mask rests on the upper nose area of a wearer's face providing a cushioning seal between the mask and wearer's nose. The nose pad cushion can be impregnated with medication to be adsorbed by the skin of the patient. The surface of the nose pad cushion which contacts the skin of the user is soft and pliable and selected to removably adhere only to dry skin and is incapable of sticking to a moist wound bed or sores formed on the bridge of the nose. The area covered by the cushion primarily covers the upper nose area but could cover the entire interface between the mask and the face of a user. The cushion can be pre-shaped to be applied to the desired area of the mask. The adhesive which holds the cushion to the mask is of a type such that the cushion can be removed cleanly and replaced with another cushion periodically.

A closure for sealing the open end of a specimen collection container from the environment is provided. The closure includes a generally spherical-shaped ball having a passageway extending therethrough, with the ball including an axle permitting rotative movement of the ball thereabout between an open position and a closed position. The closure further includes a socket mounted on the open end of the collection container, with the socket including a ball receiving internal surface having an axle-support for receiving the axle of the ball for accommodating rotative movement of the ball therein. The passageway of the ball is aligned with the open end of said collection tube when the ball is in an open position and is out of alignment with the open end of the collection container when the ball is in a closed position. The socket includes a ball receiving portion and a resilient elastomeric seal for maintaining the ball within the ball receiving portion and for providing a liquid-tight seal between the ball and the open end of the collection container.

The method for adjusting the quantity of coffee comprises the steps of: dispensing a predetermined quantity of coffee powder into an infusion chamber (36); by means of an electric actuator (19), closing said infusion chamber compressing the coffee powder in the infusion chamber. The method also provides for detection of at least one parameter of the electric actuator during at least a part of the step to close the infusion chamber and compress the-coffee powder; and setting of the quantity of coffee powder dispensed in a subsequent dispensing cycle as a function of said parameter.

An apparatus for treating an exhaust gas stream and having removable module(s) is disclosed. The apparatus comprises a housing, providing fixed boundaries at least between an inlet and an outlet and at least two sections arranged within said housing, the housing defining an interior exhaust passage that extends sequentially through said sections, wherein one or more treatments are to be performed upon a gas flowing through said sections. At least one of said sections is removable from within the fixed boundaries of the housing in a direction essentially perpendicular to said flow direction. Further, there is provided first releasable clamping means securing a first end of said removable section to a first adjacent part both axially and radially and second releasable clamping means securing a second end of said removable section to a second adjacent part at least radially, wherein in a clamped position said second end is separated from said second adjacent part by a tolerance gap, and wherein said second releasable clamping means in the clamped position also provides a seal between said second end and said second adjacent part.

A dental filling material comprising a thermoplastic polymer. The thermoplastic polymer may be biodegradable. A bioactive substance may also be included in the filling material. The thermoplastic polymer acts as a matrix for the bioactive substance. The composition may include other polymeric resins, fillers, plasticizers and other additives typically used in dental materials. The filling material is used for the filing of root canals.

A plug retainer and receiving flange for a mud pump fluid module pipe comprising a plug retainer and a receiving flange. The threads of the plug retainer are configured into at least two segments that are axially disposed opposite each other upon the periphery of the plug retainer. Each segment of plug retainer threads has at least two columns of threads that are progressively stepped outward from said the periphery of said plug retainer. The receiving flange has at least two segments of flange threads axially disposed upon the periphery of the flange bore that are disposed opposite each other on the flange bore to form gaps between each of the thread segments, each segment of receiving flange threads has at least two columns of threads that are progressively stepped inward and are configured to correspond with the plug retainer thread segments. A means to rotate the plug retainer within the bore of the receiving flange is provided to engage the plug retainer threads with the receiving flange threads. The plug retainer threads and the receiving flange threads may be horizontally disposed and a lock plate may be provided to avoid inadvertent turning of the plug retainer in the receiving flange.

The present invention provides sintered polymeric materials and methods of making the same which are useful in a variety of applications. In one embodiment, the present invention provides a sintered polymeric material comprising at least one plastic and at least one elastomer.

A light-emitting device includes: a substrate; a plurality of light-emitting elements which is formed on the substrate and each of which has an anode partitioned by an insulating pixel partition wall, a cathode, and an organic light-emitting layer interposed therebetween and emits light by an electric field generated by the anode and the cathode; a first organic buffer layer that is formed by applying an organic compound and hardening the organic compound and covers a region larger than the region in which the plurality of light-emitting elements are formed; a second organic buffer layer that is that is formed by applying an organic compound and hardening the organic compound and is arranged above the substrate with the first organic buffer layer interposed therebetween so as to cover the plurality of light-emitting elements; and a gas barrier layer that is formed of an inorganic compound, covers a region larger than the region in which the first and second organic buffer layers are formed, and protects the plurality of light-emitting elements from air. In the light-emitting device, a region of the substrate overlapping the first organic buffer layer is not completely matched with a region of the substrate overlapping the second organic buffer layer.

A bi-metallic strip seal used to seal the gap between adjacent shroud segments in a gas turbine engine. The bi-metallic strip seal is formed from one or more layers of bi-metallic materials with different coefficients of thermal expansion. In a cold state the bi metallic strip seal will fit within the slot easily, while in the hot state the strip seal will expand to fit tightly within the slot and block leakage flow. The strip seal can be formed with the bi-metallic layers oriented similarly or oppositely in order to control the seal force and deflection properties. In one embodiment, the strip seal is formed from four bi-metallic layers in which the middle is bonded while the adjacent layers are free from shear.

Aneurysms are treated by filling at least one double-walled filling structure with a filling medium within the aneurysm, such as filling structures having a membrane that allows water molecules to permeate across the membrane in response to a water potential differential across the membrane. The transport of fluid across the membrane allows the bag to expand or shrink to accommodate changes in the size or shape of the aneurysm, thereby maintaining a seal between the filling structure against the vessel wall and maintaining apposition of the filling structure against the inside surface of the aneurysm. Transport of water molecules into or out of the filling structure is controlled by adjusting for the osmolarity of the filling fluid medium. The filling structures may be delivered over balloon deployment mechanisms in order to shape occlude the aneurysm and open a tubular lumen for flow of blood through the filling structure.

The invention relates to an apparatus (10) for purifying gas while bleeding a crank housing, said apparatus (10) comprising a housing (12) inside which a separator chamber (14) is provided, a rotor arrangement with a rotor shaft (32) that is rotatably mounted in the housing and a centrifugal rotor (39) located in the separator chamber (14), and a fluid driving device (64) for driving the rotor shaft (32) by means of a driving fluid, the driving device (64) being disposed in a driving chamber (60) that is separated from the separator chamber (14) by means of a housing partition (16), and the rotor shaft (32) extending through a breakthrough in the housing partition (16). In the case of this device, it is provided that a labyrinth-type seal (70) is provided in the zone of the breakthrough in order to seal the driving chamber (60) from the separator chamber (14).

Lens mold assembly including a first and a second mold cooperating with each other to define a mold cavity for molding an ophthalmic lens with the first and second molds being held in line contact with each other at a radial position, wherein at least one of the two molds consists of a central molding portion located radially inwardly of the radial position, and an outer rim portion located radially outwardly of the radial position, the central molding portion cooperating with the other mold to define the mold cavity, the above-indicated at least one mold having a mold surface which is opposed to a mold surface of the other mold when the two molds are assembled together, the mold surface of the at least one mold consisting of a central lens-forming region in the central molding portion, and an outer peripheral non lens-forming region in the outer rim portion, at least a part of the lens-forming region adjacent to the radial position providing a concave portion, while at least a part of the outer peripheral non lens-forming region adjacent to the radial position providing a convex portion.

An endodontic post comprises a combined endodontic post and tip of filling material such as thermoplastic material in a single unit. Obuturating systems are provided by an endodontic carrier and attached filling material. The post and obturator include a protrusion or depression on the tip section of the device for better attachment of the filling material to the device. Alternatively the post and obuturator are fabricated of a tube having a tunnel extending therethrough into which filling material is injected. The filling material extends out of the apical section of the post and obturator to form a filler cone.

An electrochemical cell constructed in accordance with the present invention includes a can for containing electrochemical materials including positive and negative electrodes and an electrolyte, the can having an open end and a closed end; a pressure relief mechanism formed in the closed end of the can for releasing internal pressure from within the can when the internal pressure becomes excessive; a first outer cover positioned on the closed end of the can to be in electrical contact therewith and to extend over the pressure relief mechanism; a second outer cover positioned across the open end of the can; and an insulator disposed between the can and the second outer cover for electrically insulating the can from the second outer cover. According to another embodiment, the second cover is dielectrically isolated from a current collector. The second cover is fastened to the can by the use of a double-seamed closure.

A piezoelectric pump having a first opening in a center portion of a pump body, and a second opening apart from the center. An outer peripheral portion of a metal diaphragm is fixed to the pump body, and a piezoelectric element having a size that covers the first opening and does not cover the second opening is bonded to a back center portion of the diaphragm. By applying a voltage near the resonance frequency to the piezoelectric element, a portion of the diaphragm opposing the first opening and a portion of the diaphragm opposing the second opening are bent in opposite directions so that fluid is drawn in from one of the first opening and the second opening and is discharged from the other opening. Such a piezoelectric pump can increase the discharging pressure, and can reliably discharge the fluid even under a condition where the pressure on the discharging side is high.

A gasket which is mounted onto a groove knurled on the seal surface of a cover member and is used for sealing between the cover member and a block member closely attached to the seal surface of the cover member, wherein the gasket has at least one satin finished surface portion on its side wall.

An endobronchial tube comprising at least two lumens of different lengths for selectively associating with a patient about at least two locations relative to the Tracheal Carina. said tube comprising: a first lumen having an open distal end that associates proximally to the Carina within the Trachea, with a first inflatable cuff; a second lumen having an open distal end that extends distally, past the Carina and associates within one of the Left Bronchial branch and Right Bronchial branch with a second inflatable cuff; a dedicated image sensor lumen spanning the length of said first lumen, the dedicated image sensor lumen comprising an image sensor and illumination source disposed adjacent to the distal end of said first lumen, and configured to provide an image of the Tracheal bifurcation of the Tracheal Carina, the openings of the Left Bronchial branch, and the opening Right Bronchial branch; and at least one dedicated cleaning lumen disposed parallel with said dedicated image sensor lumen along the length of said endobronchial tube and wherein said cleaning lumen is configured to forms a cleaning nozzle at the distal end, wherein said cleaning nozzle is directed toward said image sensor lumen at its distal end.