1320results about How to "Increase displacement" patented technology

A balloon for use in compressing cancellous bone and marrow (also known as medullary bone or trabecular bone). The balloon comprises an inflatable balloon body for insertion into said bone. The body has a shape and size to compress at least a portion of the cancellous bone to form a cavity in the cancellous bone and / or to restore the original position of the outer cortical bone, if fractured or collapsed. The balloon desirably incorporates restraints which inhibit the balloon from applying excessive pressure to various regions of the cortical bone. The wall or walls of the balloon are such that proper inflation of the balloon body is achieved to provide for optimum compression of the bone marrow. The balloon can be inserted quickly into a bone. The balloon can be made to have a suction catheter. The balloon can be used to form and / or enlarge a cavity or passage in a bone, especially in, but not limited to, vertebral bodies. Various additional embodiments facilitate directionally biasing the inflation of the balloon.

Several embodiments of medical ultrasound handpieces are described each including a medical ultrasound transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system includes a medical ultrasound handpiece having a medical ultrasound transducer assembly and includes an ultrasonically-vibratable medical-treatment instrument which is attachable to a distal end of the transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system has a handpiece including a medical ultrasound transducer assembly and including a housing or housing component surrounding the transducer assembly. A method for tuning a medical ultrasound handpiece includes machining at least a distal non-threaded portion of an instrument-attachment stud of the transducer assembly to match a measured fundamental frequency to a desired fundamental frequency to within a predetermined limit. A method for making a medical ultrasound transducer assembly determines acceptable gains for gain stages of the transducer assembly.

Several embodiments of medical ultrasound handpieces are described each including a medical ultrasound transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system includes a medical ultrasound handpiece having a medical ultrasound transducer assembly and includes an ultrasonically-vibratable medical-treatment instrument which is attachable to a distal end of the transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system has a handpiece including a medical ultrasound transducer assembly and including a housing or housing component surrounding the transducer assembly. A method for tuning a medical ultrasound handpiece includes machining at least a distal non-threaded portion of an instrument-attachment stud of the transducer assembly to match a measured fundamental frequency to a desired fundamental frequency to within a predetermined limit. A method for making a medical ultrasound transducer assembly determines acceptable gains for gain stages of the transducer assembly.

An apparatus and method for establishing closed dielectrophoretic potential cages and precise displacement thereof comprising a first array of selectively addressable electrodes, lying on a substantially planar substrate and facing toward a second array comprising one electrode. The arrays define the upper and lower bounds of a micro-chamber where particles are placed in liquid suspension. By applying in-phase and counter-phase periodic signals to electrodes, one or more independent potential cages are established which cause particles to be attracted to or repelled from cages according to signal frequency and the dielectric characteristics of the particles and suspending medium. By properly applying voltage signal patterns into arrays, cages may trap one or more particles, thus permitting them to levitate steadily and / or move. In the preferred embodiment, where one array is integrated on a semiconductor substrate, displacement of particles can be monitored by embedded sensors.

The present invention provides a method of laying and mechanically joining panels, especially floor panels. In a first step a first panel is already located in a first row. A second panel is positioned in a second row in a first position in relation to the first panel. A third panel is now brought into the second row and into the first position in relation to the first panel. In this position, there is a mutual distance between the adjacent edges of the second and third panel. In a second step the second and third panel are angled into the third mutual position in relation to the first panel. Thereby, the second and third panel each achieve the possibility of easy displacement in the third direction in relation to the first panel. In a third step one or both of the second and third panel are moved in relation to the first panel. By this displacement the second and third panel get in a second position in relation to each other. An additional intermediate step may be employed between the first and the second step. In this intermediate step the second and third panel are angled down into the second mutual position in relation to the first panel.

The present invention provides a method of laying and mechanically joining panels, especially floor panels. In a first step a first panel is already located in a first row. A second panel is positioned in a second row in a first position in relation to the first panel. A third panel is now brought into the second row and into the first position in relation to the first panel. In this position, there is a mutual distance between the adjacent edges of the second and third panel. In a second step the second and third panel are angled into the third mutual position in relation to the first panel. Thereby, the second and third panel each achieve the possibility of easy displacement in the third direction in relation to the first panel. In a third step one or both of the second and third panel are moved in relation to the first panel. By this displacement the second and third panel get in a second position in relation to each other. An additional intermediate step may be employed between the first and the second step. In this intermediate step the second and third panel are angled down into the second mutual position in relation to the first panel.

In a sternum closure device for fixing two sternum portions to be joined to each other, comprising a first plate-shaped contact element for placement against the inner surface of the sternum, a clamping element fixed on and protruding transversely from the first contact element, a second plate-shaped contact element for placement against the outer side of the sternum, the second contact element being clampable against the first contact element by means of the clamping element passing through the space between the sternum portions, and fixing projections on the first contact element pointing in the direction towards the second contact element, in order to facilitate placement of the sternum closure device, it is proposed that at least one fixing projection on the first contact element be provided with barb-shaped recesses.

Oil-based settable spotting fluid compositions and methods of using the compositions are provided. The oil-based settable spotting fluid compositions are basically comprised of oil, an emulsifying surfactant for emulsifying the oil with water whereby an oil-external emulsion is formed, a de-emulsifying surfactant which in time de-emulsifies said oil-external emulsion when the emulsion is contacted with external water, a hydraulic settable component selected from the group consisting of ASTM Class C or the equivalent fly ash and ASTM Class F or the equivalent fly ash together with a source of calcium and water selected from the group consisting of fresh water and salt water.

The present invention relates to a hearing aid system comprising a hearing implant and a method of powering a hearing implant, the system comprising an external ear canal module and an implant, wherein the signalling and / or powering of the ear implant is by way of a light signal being provided to the implant through the ear drum from, for example, the ear canal module.

A cannula insertion device includes a housing defining an opening for receiving therethrough a cannula and further defining a channel, and a cannula forming a lumen, the cannula adapted for sliding movement within the housing from a retracted position to an extended position. When the cannula is in the retracted position, the lumen is located remotely from the channel and the channel is in fluidic communication with the opening. When the cannula is in the extended position, the lumen is in fluidic communication with the channel.

A wound treatment device comprises a wound surface contacting plug (10) and a cover (24) for covering the wound surface (22) and the plug (10), wherein said plug (10) consists of a flat textile isolating material comprising at least one first surface layer (12), one second surface layer (14) and one intermediate space (18) arranged between said surface layers (12, 14). At least the first surface layer (12) is provided with a biocompatible surface and a structure which enables a liquid to pass and prevents a wound tissue from growing in said structure. The intermediate space (18) is provided with isolating threads (16) elastically holding the first surface layer (12) and the second surface layer at a certain distance from each other.

The invention discloses novel ultra-large-displacement ultrahigh-pressure well cementing equipment. The novel ultra-large-displacement ultrahigh-pressure well cementing equipment comprises a loading carrier. A hydraulic system, a power transmission system, a metering tank, an electrical system, an air path system, a control system, an operating platform, a plunger pump, a clean water manifold, a mud manifold, a high-pressure manifold, a mixing system and an ash feeding manifold are mounted on the loading carrier, wherein the plunger pump is a five-cylinder plunger pump. The five-cylinder plunger pump is adopted to increase the pressure and displacement of the well cementing equipment, and the requirements of high pressure and large displacement are met; slurry mixing is carried out by double mixing devices, the mixing efficiency is improved, the stability of the slurry mixing density is improved, and the requirement of long-time uninterrupted operation is guaranteed; a mixing system pipeline is optimized, multiple sets of mixing systems are integrated on one slurry mixing tank, and the stability of the equipment is improved; and the clean water manifold is optimized, so that watersupply requirements of the multiple mixing devices can also be met at the same time by using one injection pump, and the requirement of large displacement is met.

The invention provides a fracturing blender truck. The fracturing blender truck comprises a chassis and a sand blending device arranged above the chassis. The sand blending device comprises a sand blender provided with a fracturing sand inlet, a base fluid inlet and a fracturing fluid outlet, and a closed-type mixing pump serves as the sand blender. The fracturing blender truck further comprises an overturning support and a power system, wherein the overturning support arranged on the chassis is capable of achieving reciprocating rotation and used for bearing the sand blending device, and the power system arranged on the chassis is connected with the overturning support and drives the overturning support to rotate to enable a base of the closed-type mixing pump to be capable of contacting with the ground. The fracturing blender truck has the advantages that the closed-type mixing pump serves as the sand blender, and the rotatable overturning support is used for bearing the sand blending device to enable the base of the closed-type mixing pump to be capable of contacting with the ground, so that suction capacity of the closed-type mixing pump is improved, delivery capacity of the closed-type mixing pump is increased, delivery capacity of the fracturing blender truck is increased without changing the occupied area of the fracturing blender truck, and the requirements on large-scale fracturing operation can be met.

The invention provides a fracturing blender truck. The fracturing blender truck comprises a chassis, a sand blending device, a four-connecting-rod mechanism and a power system. The sand blending device is arranged above the chassis and provided with a sand blender, and a closed-type mixing pump serves as the sand blender. The four-connecting-rod mechanism is capable of driving the sand blending device to move to enable a base of the closed-type mixing pump to contact with the ground, a first connecting rod and a third connecting rod of the four-connecting-rod mechanism are arranged on the chassis rotatably, and the sand blending device is arranged on a second connecting rod of the four-connecting-rod mechanism. The power system arranged on the chassis is connected with the first connecting rod and drives the four-connecting-rod mechanism to rotate to enable the closed-type mixing pump to contact with the ground. The fracturing blender truck has the advantages that the closed-type mixing pump serves as the sand blender, and the second connecting rod of the four-connecting-rod mechanism is used for bearing the sand blending device to enable the base of the closed-type mixing pump to be capable of contacting with the ground, so that the height of the closed-type mixing pump is decreased, suction capacity of the closed-type mixing pump is improved, a great quantity of fracturing fluid can be guided out, delivery capacity of the fracturing blender truck is increased, and the requirements on large-scale fracturing operation can be met.

The invention relates to a fracturing transmission and high-pressure discharging system. The fracturing transmission and high-pressure discharging system comprises a chassis and is characterized in that a high-power engine, a transfer case, a plurality of variable displacement plunger pumps and a double-acting fracturing pump are arranged on the chassis, the output end of the high-power engine is connected with the input end of the transfer case, the output end of the transfer case comprises a plurality of power take-off ports, and each power take-off port is connected with one variable displacement plunger pump; the variable displacement plunger pumps drive the double-acting fracturing pump through a hydraulic system. The fracturing transmission and high-pressure discharging system further comprises a system radiator and a heat dissipation plunger pump used for driving the system radiator, and the heat dissipation plunger pump is connected with one power take-off port of the transfer case. The power take-off ports of the transfer case and the variable displacement plunger pumps are arranged annularly. The fracturing transmission and high-pressure discharging system has the advantages that hydraulic driving replaces mechanical transmission, and working vibration is reduced; the layout space of a whole vehicle is saved, and meanwhile, operating efficiency and the stability of the whole vehicle are improved.

Formed compositions for application to a bone surface of a human or animal subject, comprising: a bone material; and a carrier comprising denatured demineralized bone, where the composition is formed into a shape suitable for administration to the bone. Methods are provided for making formed compositions for application to a bone surface of a human or animal subject comprise mixing a demineralized bone and water; heating the mixture to form a carrier; mixing the carrier with bone to form a moldable composition; and molding the moldable composition to produce a formed composition. Several apparatuses are provided in which to hydrate the formed bone composition. Methods of hydrating a formed bone composition are also provided.

Building panels, such as floorboards, provided with a mechanical locking system. The mechanical locking system includes a displacement groove at a first edge of a first floorboard and a tongue groove at a second edge of a second floorboard A tongue is arranged in the displacement groove and is configured to cooperate, in a second position, with the tongue groove for vertical locking of the first and the second edge. The tongue includes, in a first position, an inner element and an outer element. The inner element is removable along the displacement groove, and is configured to cooperate with the outer element to obtain a displacement of the outer element towards the tongue groove and thereby obtain the second position. Said inner element and said outer element vertically overlap each other.

A cutting tool for creating resected surfaces of bone during arthroplasty procedures has a single offset handle arm that presents a narrower effective width than a width of the cutting profile of the cutting tool along a longitudinal axis of the cutting profile. Preferably, the single offset handle arm creates a cutting tool with a generally L-shaped outline simultaneously accounting for soft tissue / incision geometry and bony geometry to accommodate both in facilitating ease of use and minimal displacement of soft tissue during cutting. The cutting tool can be snaked into position through an incision approximately the size of the width of the handle arm, instead of requiring an incision that is essentially the width of the cutting path of the cutting tool. In alternate embodiments, the cutting tool is a milling tool, a wireplasty cutting tool, a band saw or reciprocating cutting tool.

A piezoelectric micro-blower includes an inner case to which a peripheral portion of a vibrating plate including a piezoelectric element is fixed such that a blower chamber is defined between the inner case and the vibrating plate and an outer case arranged to cover an outer periphery of the inner case with a gap therebetween. The inner case is elastically retained in the outer case by a plurality of connecting portions. A first opening is provided in a top plate portion of the inner case that faces a central portion of the vibrating plate, and a second opening is provided in a top plate portion of the outer case that faces the first opening. A central space is provided between the top plate portions, and fluid introduced from the outside is guided to the central space through the gap between the inner and outer cases. The vibrating plate is driven in a bending mode so that air is sucked into the central space and is discharged through the second opening. The connecting portions prevent leakage of vibration of the vibrating plate from the inner case to the outer case, thereby reducing energy loss.

According to an embodiment, a lacing system for opening and closing an article includes a tensioning device having a first mode of operation and a second mode of operation, a first tension member that is coupled with the tensioning device and tensionable thereby, and a second tension member that is coupled with the tensioning device and tensionable thereby. The tensioning device is configured to: effect tensioning of the first tension member to close and tighten the article upon operation of the tensioning device in the first mode of operation and effect tensioning of the second tension member to loosen and open the article upon operation of the tensioning device in the second mode of operation.

Building panels, such as floorboards, provided with a mechanical locking system. The mechanical locking system includes a displacement groove at a first edge of a first floorboard and a tongue groove at a second edge of a second floorboard A tongue is arranged in the displacement groove and is configured to cooperate, in a second position, with the tongue groove for vertical locking of the first and the second edge. The tongue includes, in a first position, an inner element and an outer element. The inner element is removable along the displacement groove, and is configured to cooperate with the outer element to obtain a displacement of the outer element towards the tongue groove and thereby obtain the second position. Said inner element and said outer element vertically overlap each other.

Several embodiments of medical ultrasound handpieces are described each including a medical ultrasound transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system includes a medical ultrasound handpiece having a medical ultrasound transducer assembly and includes an ultrasonically-vibratable medical-treatment instrument which is attachable to a distal end of the transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system has a handpiece including a medical ultrasound transducer assembly and including a housing or housing component surrounding the transducer assembly. A method for tuning a medical ultrasound handpiece includes machining at least a distal non-threaded portion of an instrument-attachment stud of the transducer assembly to match a measured fundamental frequency to a desired fundamental frequency to within a predetermined limit. A method for making a medical ultrasound transducer assembly determines acceptable gains for gain stages of the transducer assembly.

Several embodiments of medical ultrasound handpieces are described each including a medical ultrasound transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system includes a medical ultrasound handpiece having a medical ultrasound transducer assembly and includes an ultrasonically-vibratable medical-treatment instrument which is attachable to a distal end of the transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system has a handpiece including a medical ultrasound transducer assembly and including a housing or housing component surrounding the transducer assembly. A method for tuning a medical ultrasound handpiece includes machining at least a distal non-threaded portion of an instrument-attachment stud of the transducer assembly to match a measured fundamental frequency to a desired fundamental frequency to within a predetermined limit. A method for making a medical ultrasound transducer assembly determines acceptable gains for gain stages of the transducer assembly.

A wound treatment device comprises a wound surface contacting plug and a cover for covering the wound surface and the plug, wherein said plug consists of a flat textile isolating material comprising at least one first surface layer, one second surface layer and one intermediate space arranged between said surface layers. At least the first surface layer is provided with a biocompatible surface and a structure which enables a liquid to pass and prevents a wound tissue from growing in said structure. The intermediate space is provided with isolating threads elastically holding the first surface layer and the second surface layer at a certain distance from each other.

An elongated medical clip applying device having a handle grip assembly on a proximal end thereof and an elongated channel with a pair of squeezable jaws on a distal end thereof. A push rod arrangement is included having a distal end and a proximal end. The push rod arrangement is utilized for advancing a plurality of clips in a sequential manner between the jaws. The push rod includes a multiplier extender arrangement to increase the distance of travel of the distal end of the push rod arrangement a multiple of the distance of travel of the proximal or input end of the push rod arrangement.

Recovery of viscous hydrocarbon from subterranean formations is assisted by using a plurality of novel U-tube type wells, each with dual wellheads, a moveable wellbore packer, a lateral section with a concentric communication zone and with sequential injection production perforations in which heat is injected into the proximal perforations and hot oil and produced fluids are produced from the distal perforations, the whole process being controlled by modulating the production flow where the wellbore fluids are controlled to act as a hydraulic seal to limit bypass of injected fluids. The injection-production displacement process moves axially along the wellbore in a sequential manner as hydrocarbon volumes are depleted by injected fluid displacement of oil and oil and water production.

A catalyst system and a process for the bulk addition polymerization or of polycyclic olefins, such as norbornene, methylnorbornene, ethylnorbornene, butylnorbornene or hexylnorbornene, 1,2,3,4,4a,5,8,8a-octahydro-1,4:5,8-dimethanonapthalene, 5,5'-(1,2-ethanediyl)bisbicyclo[2.2.1]hept-2-ene, and 1,4,4a,4b,5,8,8a,8b-octahydro-1,4:5,8-dimethanobiphenylene are disclosed. The catalyst includes an organonickel or organopalladium transition metal procatalyst and an activator compound. Polymerization can be carried out in a reaction injection molding process to yield thermoplastic and thermoset molded polymeric articles possessing high glass transition temperatures.