1048 results about "Flow diverter" patented technology

The disclosure is directed to an implantable device for sensing CSF flow through an implantable ventricular shunt. The sensing device is implanted with the CSF shunt, and includes a flow sensor to sense flow rate or shunt blockage. The sensing device is either placed within or adjacent to the fluid path through the shunt. The sensing device transmits the sensed flow rate to an external monitoring device by wireless telemetry. The sensing device may be integrally formed as part of the shunt, or clamped onto a portion of the shunt, in which case the sensing device may be resusable. An external monitor receives the transmitted flow signal and presents information based on the flow signal. The sensing device may be inductively powered or include its own power supply.

The present disclosure relates to improved capabilities for stabilizing and regulating atrial pressure with a shunt in the atrial septum or a stent in the coronary sinus. The disclosure also includes sensing, monitoring, drug therapy and control capabilities to provide improved treatment of patients with heart disease and other cardiac related conditions.

Devices and methods for treating heart disease by normalizing elevated blood pressure in the left and right atria of a heart of a mammal are disclosed. Devices may include an adjustable hydraulic diameter shunt portion which can be manually adjusted in vivo. Methods are provided for adjusting the flow rate of the devices in vivo.

A refillable atomizing assembly with a liquid reservoir for an electronic cigarette. The assembly includes a housing and a mouthpiece that is removably engaged to the housing. A liquid reservoir is disposed within the housing, and separated from the aerosol outlet by an outlet chamber. The liquid reservoir is refillable by removing the mouthpiece and dispensing the liquid into the outlet chamber. An atomizing chamber is adjacent to the reservoir and opposite of the outlet chamber. An aerosol conduit connects the atomizing chamber to the outlet chamber. An isolation member is disposed within the outlet chamber. A liquid passage through the isolation member allows the liquid placed into the outlet chamber to flow into the reservoir. A shield portion of the isolation member is located about the aerosol conduit to prevent liquid from entering. An aerosol vent through the shield portion enables the flow of the aerosol therethrough.

Intravascular devices are delivered to the aorta percutaneously via the femoral artery. The devices are anchored within the vasculature in the region of the renal artery ostia. These embodiments function to increase the flow of blood from the aorta to the renal arteries, thus delivering a higher relative percentage of the blood flowing through the aorta to the kidneys. The elevation in blood low to the kidneys improves the natural removal of excess fluids from the body. In one embodiment, the device is a diverter element positionable upstream of the renal artery ostia. In another embodiment, the device is a flow restrictor positionable downstream of the ostia to cause an elevation is pressure upstream of the ostia.

An implantable catheter or shunt for draining fluid from a body cavity. The catheter or shunt body has a wall structure that carries one or more therapeutic agents in a manner enabling release of the therapeutic agent from the wall structure in situ after surgical implantation of the catheter or shunt body. The therapeutic agent can be gradually released over time to prevent infection, inhibit tissue ingrowths, and/or provide some other desired medicinal purpose. As an example, the therapeutic agent can be rapamycin or an mTOR inhibitor. According to some contemplated embodiments of the present invention, the therapeutic agent carried by the catheter/shunt is rechargeable or refillable in situ so that the therapeutic agent can be gradually released from the catheter/shunt over the expected useful life of the catheter/shunt.

Methods and devices are adapted for implanting into the eye. An incision is formed in the cornea of the eye and a shunt is inserted through the incision into the anterior chamber of the eye. The shunt includes a fluid passageway. The shunt is passed along a pathway from the anterior chamber through the scleral spur of the eye into the suprachoroidal space and positioned in a first position such that a first portion of the fluid passageway communicates with the anterior chamber and a second portion of the fluid passageway communicates with the suprachoroidal space to provide a fluid passageway between the suprachoroidal space and the anterior chamber.

A method of treating glaucoma in an eye utilizing an implanted shunt having an elastomeric plate and a non-valved elastomeric drainage tube. The plate is positioned over a sclera of the eye with an outflow end of the elastomeric drainage tube open to an outer surface of the plate. An inflow end of the drainage tube tunnels through the sclera and cornea to the anterior chamber of the eye. The drainage tube collapses upon initial insertion within an incision in the selera and cornea, or at a kink on the outside of the incision, but has sufficient resiliency to restore its patency over time. The effect is a flow restrictor that regulates outflow from the eye until a scar tissue bleb forms around the plate of the slunt. The plate desirably has a peripheral ridge and a large number of fenestrations, and a longer suturing tab extending from one side of the plate to enhance visibility and accessibility when suturing the shunt to the selera.

Methods and apparatus are provided for reducing surge pressure while running casing into a wellbore. The apparatus includes a running string for running casing having a diverter tool therein. The diverter tool has one or more bypass ports between its upper and lower end which are normally closed. In operation, the diverter tool is automatically cycled between the open and closed positions of the bypass ports during a casing running operation. A pressure event inside the diverter tool deactivates the cyclic opening and closing function of the bypass port.

Glaucoma can be treated by implanting an intraocular shunt into the eye. Such procedures can employ various deployment devices, shunts, and implantation techniques.

A method and apparatus for treating a patient's health condition by diverting pancreatic exocrine secretions include a flow diverter of material compatible with chronic residence within a small intestine of the patient. The flow diverter has a cover end and a discharge end. The flow diverter is sized to be placed within the small intestine with the discharge end placed distally from said cover end and with said flow diverter further sized so permit passage of chyme through the small intestine and past the flow diverter. The cover end is sized to cover a discharge papilla of the pancreatic duct. The diverter is adapted to divert at least a portion of pancreatic exocrine secretion from the papilla to the distal discharge end.

The invention relates to a sealing device for repair of cardiac and vascular defects or tissue opening such as a patent foramen ovale (PFO) or shunt in the heart, the vascular system, etc. and particularly provides an occluder device and trans-catheter occluder delivery system. The sealing device would have improved conformity to heart anatomy and be easily deployed, repositioned, and retrieved at the opening site.

A disposable cassette for detecting nucleic acids or performing other assays. The cassette can be inserted into a base station during use. The cassette has numerous features to ensure correct operation of the device under gravity, such as vent pockets for enabling the flow of sample fluid from one chamber to the next when the vent pocket is unsealed. The vent pockets have protrusions to help prevent accidental resealing. The cassette also can have a gasket to ensure free air movement between open vent pockets. A flexible circuit with patterned metallic electrical components disposed on a heat stable material can be in direct contact with fluid in the chambers and has resistive heating elements aligned with the vent pockets and the chambers. The detection chamber, which houses a lateral flow detection strip can have a space below the strip that has sufficient capacity to accommodate an entire volume of the sample fluid entering the detection chamber at a height that enables the fluid to flow up the detection strip by capillary action without flooding or otherwise bypassing regions of the detection strip. The space can also contain detection particles. Recesses in in the cassette channels or chambers can have structures such as ridges or grooves to direct fluid flow to enhance rehydration of lyophilized reagents disposed in the recess. Flow diverters in the chambers can reduce the flow velocity of the sample fluid and increase the effective fluid flow path length, enabling more accurate control of fluid flow in the cassette.

Devices and methods for treating heart disease by normalizing elevated blood pressure in the left and right atria of a heart of a mammal are disclosed. Devices may include an adjustable hydraulic diameter shunt portion which can be manually adjusted in vivo. Methods are provided for adjusting the flow rate of the devices in vivo.

An arteriovenous shunt assembly including a shunt and a pull wire operated flow control mechanism. The shunt has a tubular body that defines a fluid passageway between a first end and a second end thereof The pull wire mechanism includes a portion disposed around the tubular shunt in at least one loop. The at least one loop may be selectively tightened or loosened remotely from the shunt to regulate the rate of blood flow through the tubular shunt.

A surgical technique wherein an indwelling shunt is placed in the eye of a patient having glaucoma. The shunt diverts aqueous humor from a deep scleral lake or directly from the anterior chamber to the suprachoroidal space from which it is removed by blood flowing in the choroidal and uveal tissues. This decreases the intra-ocular pressure. The indwelling shunt maintains the area of exposure of aqueous humor with the uvea by physically preventing scarring of the surrounding tissues. The method utilizes the 25 mm Hg driving force of the protein colloidal osmotic pressure of the blood to maximize the flow.