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377results about How to "Decreased blood flow" patented technology

Medical device suitable for use in treatment of a valve

InactiveUS20060178700A1Prevent leakageProfound clinical consequencesSuture equipmentsHeart valvesSeptal wallMedical device
A medical device (1210) comprises a generally cylindrical treatment element (1220) for location between a pair of valve leaflets (1212) situated between an atrium (1214) and a ventricle (1216) of a heart. The treatment element (1220) supports the valve leaflets (1212) at the region of co-aptation of the valve leaflets (1212) and occludes the valve opening to resist fluid flow in the retrograde direction through the valve opening. The device (1210) comprises a support (1222) to support the treatment element (1210) at the region of co-aptation of the valve leaflets (1212). The support has an anchor (1224) and a tether (1226), the tether (1226) being provided at the end of a guide wire (1228) which is initially utilised in the percutaneous insertion of the treatment element (1220). The anchor (1224) is secured, in use, to a septal wall (1230), while the guide wire (1228) exits the atrium (1214) through a vein adjacent a rear wall (1224) thereof. The treatment element (1220) includes a remotely actuatable clamp therein, in order to allow the treatment element (1220) to be secured to the guide wire (1228) or the tether (1226).
Owner:MEDNUA

Exclusion Device and System For Delivery

A medical flow restrictor that may be used to exclude a saccular aneurysm from the circulatory system. The device, a thin walled, foil-like shell, is compacted for delivery. The invention includes the device, electroforming fabrication methods, delivery assemblies, and methods of placing, and using, the device. A device with an aneurysm lobe and an artery lobe self-aligns its waist at the neck of an aneurysm as the device shell is pressure expanded. Negative pressure is used to collapse both the aneurysm lobe and the artery lobe, captivating the neck of the aneurysm and securing the device. The device works for aneurysms at bifurcations and aneurysms near side-branch arteries. The device, unlike endovascular coiling, excludes the weak neck of the aneurysm from circulation, while leaving the aneurysm relatively empty. Unlike stent-based exclusion, the device does not block perforator arteries. This exclusion device can also limit flow through body lumens or orifices.
Owner:ELECTROFORMED STENTS

Ablation in the Gastrointestinal Tract to Achieve Hemostasis and Eradicate Lesions With a Propensity for Bleeding

ActiveUS20090012513A1High failure rateReduced blood flowDilatorsSurgical instruments for heatingArteriovenous malformationGastric antral vascular ectasia
Devices and methods are provided for the ablation of regions of the digestive tract to achieve hemostasis and to eradicate chronically bleeding lesions as occur with gastric antral vascular ectasia (GAVE), portal hypertensive gastropathy (PHG), radiation proctopathy and colopathy, arteriovenous malformations, and angiodysplasia. Ablation is typically provided in a wide-field manner, and in conjunction with sufficient pressure to achieve coaptive coagulation. Ablation, as provided the invention, starts at the mucosa and penetrates deeper into the gastrointestinal wall in a controlled manner. Ablation control may be exerted by way of electrode design and size, energy density, power density, number of applications, pattern of applications, and pressure. Control may also be provided by a fractional ablation that ablates some tissue within a target region and leaves a portion substantially unaffected. Embodiments of the device include an ablational electrode array that spans 360 degrees and an array that spans an arc of less than 360 degrees.
Owner:TYCO HEALTHCARE GRP LP

Implantable system for monitoring the condition of the heart

Disclosed is a “tracker system” that includes implanted electrical leads which are part of an implanted cardiotracker plus external equipment that includes external alarm means and a physician's programmer. The tracker system is designed to monitor the degradation of a patient's cardiovascular condition from one or more causes. These causes include the rejection of a transplanted heart and / or the progression of a stenosis in a coronary artery. As one or more stenoses in a coronary artery become progressively more narrow thereby causing reduced blood flow to the heart muscle coronary circulation, the tracker system can alert the patient by either or both internal and / or external alarm means to take the appropriate medical action. The physician's programmer can be used to display histograms of key heart signal parameters that are indicative of the patient's cardiovascular condition.
Owner:ANGEL MEDICAL SYST

Method to control blood and filtrate flowing through an extracorporeal device

A method and apparatus are disclosed for controlling blood flow through an extracorporeal blood circuit having a controller comprising the steps of: withdrawing the blood from a withdrawl blood vessel in a patient into the extracorporeal circuit, treating the blood in the circuit and infusing the treated blood into the patient; detecting an occlusion which at least partially blocks the withdrawl or infusion of the blood; reducing the blood flow rate and the rate of filtration in response to the occlusion, and further prompting the patient to move his arm in an effort to alleviate the occlusion.
Owner:GAMBRO LUNDIA AB
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