Patent application number | Description | Published |
20100131002 | Stent with a net layer to embolize and aneurysm - This invention is a stent that is inserted into the parent vessel of an aneurysm in order to reduce blood flow to the aneurysm and promote embolization of the aneurysm. The stent wall includes an inner structure that can be expanded from a compressed state to a resilient expanded state and an outer flexible layer that covers all or part of the inner structure. Embolic members are placed and retained in the gap between the inner structure and the outer layer in the area of the aneurysm neck in order to reduce blood flow to the aneurysm. | 05-27-2010 |
20110046658 | ANEURYSM OCCLUSION DEVICE - A device to treat an aneurysm can include a plurality of soft and compressible fill members. A flow conduit can carry the fill members in a liquid flow. A flexible, expandable, and liquid-permeable net or mesh enclosure can be inserted into and to fit within the aneurysm. The net or mesh enclosure can receive and retain the plurality of fill members while openings in the net or mesh enclosure allow enough liquid flow through the net or mesh enclosure to transport the fill members into the net or mesh enclosure. A resulting accumulation of the plurality of fill members within the net or mesh enclosure causes the net or mesh enclosure to expand and to come into contact with and generally conform with an interior wall of the aneurysm. This can substantially occlude the aneurysm and retain the net or mesh enclosure within the aneurysm. | 02-24-2011 |
20110166588 | Aneurysm embolization by rotational accumulation of mass - This invention is a device for reducing blood flow into an aneurysm, especially a cerebral aneurysm, in order to promote therapeutic embolization of the aneurysm. The device comprises: at least one core member that is inserted into the aneurysm; and at least one longitudinal flexible member that is wound repeatedly around the core member within the aneurysm. The longitudinal flexible member is wound around the core member until the rotational accumulation of the flexible member reduces blood flow into the aneurysm and promotes therapeutic embolization of the aneurysm. | 07-07-2011 |
20110276071 | Vasospasm-reducing aneurysm clip - This invention is an implantable device that is attached to the exterior of an aneurysm, or to the exterior of some other portion of a blood vessel wall, wherein this device elutes, or otherwise emits, an emitted substance to prevent or treat vasospasm. This device may be embodied as a magnesium-eluting aneurysm clip. A magnesium-eluting aneurysm clip not only stops blood from escaping out of the aneurysm, but it also helps to prevent vasospasm from any blood that has already escaped. | 11-10-2011 |
20130123901 | Stent with in situ determination of wall areas with differences in porosity - This invention gives physicians in situ control to create differences in wall porosity between different areas of a stent wall. This enables a physician to customize the stent within a blood vessel to selectively block blood flow to an aneurysm with a low-porosity area of the stent wall, but allow blood flow to nearby branching vessels through one or more high-porosity areas of the stent wall. The method comprises inserting a stent into a blood vessel and, in situ, expanding the stent in a non-uniform manner, thereby causing one or more areas of the stent wall to have a lower post-expansion porosity than the rest of the stent wall. With this invention, physicians can selectively block blood flow into an aneurysm while maintaining blood flow into nearby branching vessels, even in tortuous and complex vessel configurations. | 05-16-2013 |
Patent application number | Description | Published |
20140359280 | CERTIFICATING AUTHORITY TRUST EVALUATION - In many information security scenarios, a certificate issued by a certificating authority may be presented to a client in order to assert a trust level of a certificated item, such as a message or a web page. However, due to a decentralized structure and incomplete coordination among certificating authorities, the presence and exploitation of security vulnerabilities to issue untrustworthy certificates may be difficult to determine, particularly for an individual client. Presented herein are techniques for providing a certificating authority trust service that collects and evaluates certificates submitted to clients by certificating authorities, and advises the clients of a certificating authority trust level for respective certificating authorities (e.g., determined as a consensus of the evaluated certificates issued by the certificating authority). The clients may use a certificating authority trust set distributed by the certificating authority trust service to determine whether to trust a certificate issued from a particular certificating authority. | 12-04-2014 |
20140359281 | CERTIFICATE EVALUATION FOR CERTIFICATE AUTHORITY REPUTATION ADVISING - In many information security scenarios, a certificate issued by a certificate authority on behalf of a domain is presented to a client in order to verify the identity of the domain. However, due to a decentralized structure and incomplete coordination among certificate authorities, the presence and exploitation of security vulnerabilities to issue untrustworthy certificates may be difficult for an individual client to determine. Presented herein are techniques for advising clients of the trustworthiness of respective certificate authorities by evaluating the certificates issued by such certificate authorities for suspicious indicators, such as hashcode collisions with other certificates and public key re-use. A trust level may be identified of respective certificate authorities according to the presence or absence of suspicious indicators in the certificates issued by the certificate authority, and a certificate authority trust set may be distributed to advise clients of the trustworthiness of certificates issued by the respective certificate authorities. | 12-04-2014 |
Patent application number | Description | Published |
20100163498 | Skim Tank Configurations And Methods - A skim tank includes a flow-control structure that forces a solid-depleted phase of a mixed-phase feed into a toroidal motion within the container to thereby provide an up-flow movement within the structure. Most preferably, at least a portion of the solid-depleted phase is recirculated to further increase up-flow movement within the structure. | 07-01-2010 |
20130075098 | METHODS FOR TREATMENT AND USE OF PRODUCED WATER - Produced water is treated by raising the pH to a level that significantly increases silica solubility and breaks emulsions. So treated water is then de-oiled, filtered, and subjected to ion exchange chromatography to reduce water hardness prior to feeding into a steam generator to form an intermediate quality steam. If desired, the intermediate quality steam is directly used in SAGD, or separated into a high quality steam and condensate, which is further treated to obtain additional water that can then be used in the steam generator. | 03-28-2013 |
20130334142 | OIL WATER SEPARATION AND SKIMMING DEVICE - Oil-containing water is separated in a separator in an automated/continuous operation using devices that is free of moving parts in the separation container. Operation is preferably entirely controlled via adjustment of various flow rates, typically using flow control valves and/or feed pumps in response to measurement of a guided wave radar device or other IDLT. | 12-19-2013 |
20150122481 | SYSTEMS AND METHODS FOR DE-OILING AND TOTAL ORGANIC CARBON REDUCTION IN PRODUCED WATER - Systems and methods for treatment of produced water form a steam assisted gravity drain operation are presented in which tight emulsions, total organic compounds, and solids are removed using a skim tanks that receives a multiphase mixture formed from a demulsifier and the produced water and that produces pre-treated water. The so formed pre-treated water is then subject to further total organic compounds reduction via combination with one or more oxidizing biocide to so form treated water that can be fed to a once through steam generator (OTSG) for re-injection into a formation. | 05-07-2015 |