42 results about "Perivascular Satellitosis" patented technology

Selective occlusion of a blood vessel is achieved by selectively damaging endothelial cells at a target location in the blood vessel, resulting in the formation of a fibrin clot proximate to the damaged endothelial cells. Additional fibrinogen can then be introduced into the blood vessel if occlusion is not achieved, as the fibrinogen is converted to fibrin by enzymes released by the exposed thrombogenic tissue and activated platelets. Endothelial cells are selectively damaged using thermal effects induced by ultrasound, by mechanical effects induced by ultrasound, or by mechanical effects produced by a tool introduced into the blood vessel (such as a catheter-based tool). A particularly preferred technique for selectively damaging endothelial cells involves introducing an ultrasound activatable agent into the blood vessel, and causing cavitation in that agent using pulses of high-intensity focused ultrasound having a duration insufficient to induce thermal damage in adjacent perivascular tissue.

Mesenchymal precursors cells have been isolated from perivascular niches from a range of tissues utilizing a perivascular marker. A new mesenchymal precursor cell phenotype is described characterized by the presence of the perivascular marker 3G5, and preferably also alpha smooth muscle actin together with early developmental markers such as STRO-1 and CD146 / MUC18. The perivascular mesenchymal precursor cell is shown to induce neovascularisation and improvement in cardiac function. Suitable administration of preparations of the mesenchymal precursor cells are useful for treatment of cardiovascular diseases, cerebrovascular diseases and peripheral vascular diseases.

Medical devices, and in particular implantable medical devices, may be coated to minimize or substantially eliminate a biological organism's reaction to the introduction of the medical device to the organism. The medical devices may be coated with any number of biocompatible materials. Therapeutic drugs, agents or compounds may be mixed with the biocompatible materials and affixed to at least a portion of the medical device. These therapeutic drugs, agents or compounds may also further reduce a biological organism's reaction to the introduction of the medical device to the organism. In addition, these therapeutic drugs, agents and / or compounds may be utilized to promote healing, including the formation of blood clots. Also, the devices may be modified to promote endothelialization. Various materials and coating methodologies may be utilized to maintain the drugs, agents or compounds on the medical device until delivered and positioned. In addition, the devices utilized to deliver the implantable medical devices may be modified to reduce the potential for damaging the implantable medical device during deployment. Medical devices include stents, grafts, anastomotic devices, perivascular wraps, sutures and staples. In addition, various polymer combinations may be utilized to control the elution rates of the therapeutic drugs, agents and / or compounds from the implantable medical devices.

Viable progenitor cells are extracted from frozen umbilical cord tissue. In embodiments, the umbilical cord tissue is a blood vessel bearing perivascular Wharton's jelly, and the extracted progenitor cells are HUCPVCs.

Methods for volumetric characterisation of perivascular adipose tissue use data collected by computed tomography (CT) scanning. The volumetric characterisation of perivascular adipose tissue allows the inflammatory status of underlying blood vessels to be established by CT scanning. This is of use in the diagnosis, prognosis and treatment of coronary and vascular disease.

A method including advancing a delivery device through a lumen of a blood vessel to a particular region in the blood vessel; and introducing a composition including a sustained-release carrier and an apolipoprotein A-I (apo A-I) synthetic mimetic peptide into a wall of the blood vessel at the particular region or a perivascular site, wherein the peptide has a property that renders the peptide effective in reverse cholesterol transport. A composition including an apolipoprotein A-I (apo A-I) synthetic peptide, or combination of an apo A-I synthetic mimetic peptide and an Acyl CoA cholesterol: acyltransferase (ACAT) inhibitor in a form suitable for delivery into a blood vessel, the peptide including an amino acid sequence in an order reverse to an order of various apo A-I mimetic peptides, or endogenous apo A-I analogs, or a chimera of helix 1 and helix 9 of endogenous apo A-I.

An intravascular catheter for sensing or measuring nerve activity around a blood vessel comprising a plurality of needles advanced through a supported guide tube (needle guiding element) that is broadened around a central axis with an open end to contact the body's The inner surface of the wall of the renal artery or other blood vessel, allowing the needle to be advanced through the vessel wall into the perivascular space. The system may also include a mechanism to limit and / or adjust the penetration depth of the needle. The catheter also includes structures that provide radial and lateral support to the guide tube so that the guide tube opens uniformly and maintains its position against the inner surface of the vessel wall as the sharpened needle is advanced to penetrate the vessel wall. The addition of an infusion lumen at the proximal end of the catheter and an opening in the needle increases the functionality of infusing ablative fluid into the perivascular space for integrated nerve routing and ablation capabilities.

Provided herein are compositions including oxotremorine (e.g., oxotremorine methiodide or Oxo-M) and 4-PPBP (e.g., 4-PPBP maleate). Also provided are methods of treating a connective tissue defect in a subject with oxotremorine and 4-PPBP. In addition, provided are scaffolds and methods of making same that include multiple fibers that include Oxo-M, 4-PPBP, and optionally icariin or kartogenin.