686results about How to "Sufficient pressure" patented technology

Diagnostic and surgical procedures may be performed on a beating heart using an assembly which includes a port and a fluid transport device. The port has a housing for insertion through a wall of the heart chamber and may include one valve disposed in the housing and an inlet connected to the housing. Methods for repair and diagnosis of the heart are also described. A specific method for repairing a mitral valve uses staples which may be banded together with a strip of material.

Methods and apparatus are provided for treating congestive heart by actively or passively enhancing perfusion to the renal arteries. A first embodiment comprises a specially configured balloon catheter and extracorporeal pump, wherein the pump operates in a “once-through” fashion or alternating volume displacement mode. In another embodiment the catheter includes a pair of balloons to isolate a region of the aorta, and a third balloon that directs flow into the renal arteries. In still further embodiments, a stent or cuff having a constricted region is deployed in or around the aorta, respectively, to create a backpressure upstream of the stent or cuff. Methods of enhancing renal perfusion also are provided.

An anchor-insertion tool for securing an anchor having a suture extending therefrom to a structure within a patient's body is provided. The anchor-insertion tool comprises an elongate shaft having distal and proximal ends, an anchor-receiving tip at the distal end, at least one groove extending from the tip at least partially along the length of the shaft, and at least one depression extending about the circumference of the shaft and intersecting the groove. A loaded anchor-insertion tool is provided, along with a surgical method for employing the anchor-insertion tool. A surgical template and suture retriever are also provided.

Methods and apparatus are provided for treating congestive heart by actively or passively enhancing perfusion to the renal arteries. A first embodiment comprises a specially configured balloon catheter and extracorporeal pump, wherein the pump operates in a “once-through” fashion or alternating volume displacement mode. In another embodiment the catheter includes a pair of balloons to isolate a region of the aorta, and a third balloon that directs flow into the renal arteries. In still further embodiments, a stent or cuff having a constricted region is deployed in or around the aorta, respectively, to create a backpressure upstream of the stent or cuff. Methods of enhancing renal perfusion also are provided.

A method for reducing distal embolization during insertion of devices to treat plaque, thrombi and other intravascular occlusions. Using a guide catheter, a guidewire is delivered to a site proximal to the lesion. An aspiration catheter is then introduced over the guidewire, and the two are moved together in a distal to proximal direction across the occlusion. The aspiration catheter is then moved in a proximal to distal direction while continuously aspirating, which prevents embolization of any particles which may be created during the crossing of the guidewire.

The present invention relates to orthopedic implants made from a mesh material. The mesh material can be treated in order to promote bone growth, to provide antibiotics, or to provide other beneficial treatment. Specific applications for the implants include, for example, a prosthetic ligament, a tension band, an interbody device, or a fixation device that extends across one or more joints or fractures.

A method and device are presented for use in non-invasive optical measurements of at least one desired characteristic of patient's blood. A condition of artificial blood kinetics is created at a measurement location in a patient's blood perfused fleshy medium and maintained for a certain time period. This condition is altered over a predetermined time interval within said certain time period so as to modulate scattering properties of blood. Optical measurements are applied to the measurement location by illuminating it with incident light beams of at least two different wavelengths in a range where the scattering properties of blood are sensitive to light radiation, detecting light responses of the medium, and generating measured data indicative of time evolutions of the light responses of the medium for said at least two different wavelengths, respectively, over at least a part of said predetermined time interval.

Methods and apparatus are provided for treating congestive heart by actively or passively enhancing perfusion to the renal arteries. A first embodiment comprises a specially configured balloon catheter and extracorporeal pump, wherein the pump operates in a “once-through” fashion or alternating volume displacement mode. In another embodiment the catheter includes a pair of balloons to isolate a region of the aorta, and a third balloon that directs flow into the renal arteries. In still further embodiments, a stent or cuff having a constricted region is deployed in or around the aorta, respectively, to create a backpressure upstream of the stent or cuff. Methods of enhancing renal perfusion also are provided.

A method and apparatus for steering of a flexible needle into tissue using a steering robotic platform for manipulation of the needle shaft, and by use of a semi-active arm for locating and orienting of the steering robot on the patient's body. As opposed to other steering methods, the robot does not hold the base of the needle, which is its proximal region, but rather grips the shaft of the needle by means of a manipulatable needle gripping device, near its distal end. The needle gripper attached to the robotic platform may be equipped with a traction assembly to provide motion to the needle in its longitudinal direction, such that it co-ordinates the entry of the needle with the desired entry angle. The gripping of the needle at its distal end, close to its insertion point, provides the needle manipulator with a low profile, with concomitant advantages.

A surgical method for treating urinary incontinence by securing a suture within a patient's body, retrieving a portion of the suture into the patient's vagina, and supporting the patient's urethra using the suture. A surgical method for elevating a patient's urethra in order to treat urinary incontinence, a surgical method for securing an anchor in a patient, a helical anchor and an anchor-insertion tool are also provided.

A device for promoting hemostasis in a blood vessel puncture is employed with an introducer that accesses the puncture through an incision. The introducer has an open distal end positionable at the puncture, an external portion with an open proximal end, and an axial channel therebetween. The device includes a hollow catheter, dimensioned to pass through the introducer channel, having a distal end to which is attached an expansible compression element, which may be an inflatable balloon, a collapsible prong assembly, or a resilient foam pad. The compression element is collapsed when the distal end of the catheter is enclosed within the introducer. When the catheter and the introducer are located at the desired distance from the puncture, the introducer is displaced axially relative to the catheter to expose the compression element to the subcutaneous tissue, whereupon the compression element is expanded.

A beverage forming apparatus includes a storage tank, and a centrifugal pump having an inlet connected to the storage tank by a supply conduit. The centrifugal pump may include a priming vent located below a full level of the storage tank and permit air to vent as liquid primes the pump. A metering tank may have an inlet connected to the centrifugal pump by a pump conduit, and an outlet connected to a brew chamber that forms a beverage using liquid received from the metering tank. In one embodiment, a flow control valve, such as a check valve, may be provided in the pump conduit to allow flow from the pump to the metering tank, but resist flow in reverse. In another embodiment, a vent valve in the pump conduit may be arranged to vent at least a portion of the pump conduit, e.g., to ambient air pressure.

An apparatus and method delivers an expandable body member into a uterine cavity of a uterus through a cervical opening and deploys the expandable body member in the uterine cavity. The expandable body member in a compressed state is inserted into the uterine cavity. A fluid is provided to the uterine cavity at a pressure sufficient to inflate the uterine cavity. The expandable body member expands from the compressed state to the expanded state. After expansion of the expandable body member and inflation of the uterine cavity, the fluid pressure is relieved thereby collapsing the uterine cavity about the expandable body member in the expanded state such that an endometrial layer of the uterus and a surface of the expandable body member substantially contact each other in a facially opposing relationship maximizing contact therebetween. The apparatus which performs the method includes an elongated tubular member having the expandable body member connected to a distal portion of the elongated tubular member and a fluid-providing device connected to a proximal portion of the elongated tubular member.

The invention features a method of determining whether one or more members of an analyte family are present in a sample. The method makes use of a test zone binder, e.g., a receptor that can bind one or a plurality of analytes within an analyte family, the analytes family defined by similar structural binding sites. Members of an analyte family can have different detection level requirements and, therefore, additional analyte binders can be employed to adjust test sensitivity for a subset of the analytes in the analyte family individually, so that each analyte can be detected only if it is present in the sample above a predetermined threshold.

Methods and apparatus for non-invasively assessing physiological hard of soft tissue of human and other species are described. In a preferred embodiment, tissue is vibrationally stimulated in vivo through a frequency spectrum. The tissue reacts against the stimulus and the reaction is preferably measured and recorded. Based on analytical algorithms or comparisons with previously taken measurements, changes within the tissue can be detected and used for diagnostic purposes. Further embodiments describe the usage of the device and methods for in vivo intra-operative and post-operative implant evaluations and as a therapeutic tool.

The present invention relates to viscosified treatment fluids comprising gelling agents that comprise scleroglucan or diutan, and their use in industrial and oil field operations. In certain embodiments, the present invention provides methods of treating a portion of a subterranean formation with a viscosified treatment comprising a gelling agent that comprises scleroglucan or diutan. Methods of fracturing, gravel packing, and producing hydrocarbons also are provided. Viscosified treatment fluid compositions and methods of making such exemplary compositions are provided as well.

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.

The invention provides devices that can be used to deliver a therapeutic agent to a treatment site within the vessel of a patient at increased pressure, while limiting the contact with and pressure placed on the vessel walls. Devices according to the invention include an expandable structure arranged around and on a tube having a lumen. The expandable structure may include a sealing ring that makes contact with the interior surface of a vessel to prevent or decrease fluid flow during delivery of a therapeutic agent. This allows delivery of a therapeutic agent with decreased risk of injury to the treatment site. The invention also provides for large lumen diameters, preventing shearing stress on therapeutic agents such as cell slurries.

Methods and apparatus for delivering precise amounts of fluid under pressure into cardiac tissue for the purpose of facilitating ablation of the tissue along a desired lesion line. One method injects fluid under pressure through a discharge orifice in a needle-less injection device. The injected fluid can be a cytotoxic fluid and / or a highly conductive fluid injected in conjunction with radio frequency ablation to create an ablative virtual electrode. The injected fluid can provide deeper and narrower conduction paths and resulting lesions. Radio frequency ablation can be performed at the same time as the fluid injection, using the injection device as an electrode, or subsequent to the fluid injection, using a separate device. In some methods, the injected fluid is a protective fluid, injected to protect tissue adjacent to the desired lesion line. Fluid delivery can be endocardial, epicardial, and epicardial on a beating heart. The present methods find one use in performing maze procedures to treat atrial fibrillation.

Methods and apparatus for delivering precise amounts of fluid under pressure into cardiac tissue for the purpose of facilitating ablation of the tissue along a desired lesion line. One method injects fluid under pressure through a discharge orifice in a needle-less injection device. The injected fluid can be a cytotoxic fluid and / or a highly conductive fluid injected in conjunction with radio frequency ablation to create an ablative virtual electrode. The injected fluid can provide deeper and narrower conduction paths and resulting lesions. Radio frequency ablation can be performed at the same time as the fluid injection, using the injection device as an electrode, or subsequent to the fluid injection, using a separate device. In some methods, the injected fluid is a protective fluid, injected to protect tissue adjacent to the desired lesion line. Fluid delivery can be endocardial, epicardial, and epicardial on a beating heart. The present methods find one use in performing maze procedures to treat atrial fibrillation.

A single lean NOx trap (8) has an inlet manifold (10) with baffles (18–20) to divide the inlet manifold into three flow paths (11–13). Each flow path has a thermal reformer (24–26; CPO, (POX, or ATR) with an electric heater provided electric power by related lines (29–31). Fuel from a source (50) is controlled (45–46) to apply pulses of fuel through nozzles (40–42) into each corresponding path (11–13) in turn. A plurality of diesel particulate filters (14) are disposed in the flow paths (11–13) upstream of the lean NOx trap (8). A diesel oxidation catalyst (53) is disposed downstream of the lean NOx trap.

The present invention pertains to an ink supply tank for an inkjet print head that can be installed in fixed fashion in an inkjet printer, having an ink reservoir that can be connected to an ink supply line leading to an inkjet print head, and having an ink delivery device that has actuating elements accessible from the outside, which can be brought into active engagement with corresponding, motor-powered drive elements of the inkjet printer, in which the ink delivery device feeds ink into the ink supply line at overpressure upon actuation of the actuating elements. In order to reduce the manufacturing effort and ensure a high level of functional reliability with an ink supply tank of such a type, the invention suggests that the ink delivery device have a pressure-generating device that acts on the ink reservoir and is coupled with the actuating elements, and that provides the ink reservoir with overpressure when the actuating elements are driven.

Methods of fabricating a device having laterally patterned first and second sub-devices, such as subpixels of an OLED, are provided. Exemplary methods may include depositing via organic vapor jet printing (OVJP) a first organic layer of the first sub-device and a first organic layer of the second sub-device. The first organic layer of the first sub-device and the first organic layer of the second sub-device are both the same type of layer, but have different thicknesses. The type of layer is selected from an ETL, an HTL, an HIL, a spacer and a capping layer.

A method for irrigation of a wound, said method comprising a reservoir housing containing a wound irrigation solution and a discharge means attachable thereto, said discharge means having at least one port therethrough wherein said port, or ports forms a nozzle for directing a pressurized dispersed stream of said solution.

An ejector device for ejecting droplets of fluid onto a surface includes an ejector mechanism attached to a fluid reservoir through a fluid loading plate that is configured to pierce the reservoir and channel the fluid to a rear surface of the ejector mechanism by capillary action. The ejector mechanism may have a centro-symmetric configuration with a lead free piezo actuator and may be covered by an auto-closing cover.

A method of extracting taxane products from biomass, which involves feeding the biomass into an pressurized liquid extraction unit and contacting the biomass with a halogenated C1 to C2 alkane solvent at a temperature of 100° C. or less and at sufficient pressure to keep the solvent in liquid form, to extract a stream of taxanes and solvent. The stream of taxanes and solvent are then cooled arid the solvent is stripped from the taxanes. The taxanes are finally passed through either a normal phase liquid chromatograph or a reverse phase liquid chromatograph.

A writing or drawing tip device for attachment to a touch screen stylus or handle has a rigid body of conductive material with a forward end mandrel having a rounded or elliptical tip, at least one layer of compressible material extending over the tip to produce a deformable rounded tip, and a retaining device which secures the compressible layer to the body at a location to the rear of the rounded tip. The deformable tip is applied to a touch screen to develop a contact patch between the compressible material layer and screen sufficient to trigger an input on the screen, with the amount of force applied to the tip determining the size of the contact patch.

Charging a secondary battery (39) provided within wireless headphones (15) is carried out in a reliable manner by a charger (16) when the wireless headphones (15) are not in use. An engaged section (30) and electrodes (31) are provided at the bottom portion of a case (20) of the headphones (15). An engaging section (37) constituted by a pawl and a contact member (38) is provided on a receptacle surface (36) of a supporting plate (35) on the side of the battery charger (16). In the event that the headphones (15) are then mounted on the battery charger (16) so that the engaged section (30) is engaged by the engaging section (37) on the side of the battery charger (16), the electrodes (31) of the headphones (15) are press-attached against the contact members (38) on the side of the battery charger (16) as a result of the leverage principle.

A developing device includes a toner container with a toner outlet which is formed as an opening permitting toner drop due to gravity from the toner container into a developing chamber when the opening is faced downward due to rotation of the toner container. The toner container is provided with an inner peripheral portion that is that is adjoining to the edge of the opening and protrudes toward a center line of container rotation and is on the downstream side of the opening in the direction of rotation of the toner container.