Abstract:
In accordance with one aspect, embolic particles are provided which comprise sub-particles that comprise a therapeutic agent of low solubility dispersed in a matrix that comprises a biodegradable polymer. Other aspects pertain to injectable compositions that comprise such particles and to methods of treatment that employ such injectable compositions. Still other aspects pertain to methods of making such particles.
Abstract:
A system and method for treating atherosclerotic plaque. The system includes a first catheter including an expandable balloon and a second catheter including a lumen in fluid communication with a distal hole. The method includes inserting the first catheter into a body lumen adjacent to a plaque formation, and deploying a balloon from the first catheter adjacent to the plaque formation. In addition, the method includes inserting the second catheter adjacent to the first catheter, and routing the distal end portion of second catheter along at least a portion of the deployed balloon of the first catheter. Further, the method includes routing at least a portion of the second catheter into a subintimal space adjacent to the atherosclerotic plaque. Furthermore, the method includes injecting a therapeutic agent into the subintimal space adjacent to the atherosclerotic plaque.
Abstract:
A catheter comprises a medical balloon having a drug coating. The drug coating comprises drug crystals on a surface of the balloon. The majority of the drug crystals on the surface of the balloon are oriented drug crystals which extend within 5° of a predetermined, non-zero common angle relative to the surface of the balloon from which the crystals extend.
Abstract:
A device for permanent placement across an atrial appendage ostium in a patient includes a support structure having a contracted delivery configuration and an expanded deployed configuration defining a radially enlarged portion to permanently engage an interior wall of the atrial appendage, a membrane attached to the support structure and configured to extend across the ostium of the atrial appendage when the support structure is in the expanded deployed configuration, and a polymer coating disposed on at least one of the support structure and the membrane, the polymer coating including a direct oral anticoagulant (DOAC) dispersed in a polymer.
Abstract:
In accordance with one aspect, embolic particles are provided which comprise sub-particles that comprise a therapeutic agent of low solubility dispersed in a matrix that comprises a biodegradable polymer. Other aspects pertain to injectable compositions that comprise such particles and to methods of treatment that employ such injectable compositions. Still other aspects pertain to methods of making such particles.
Abstract:
Medical devices and methods for forming the medical devices are disclosed in the present application. In one illustrative example an occlusion balloon comprises an outer balloon member, and an inner balloon member having an inner wall and an outer wall and extending through at least a portion of the outer balloon member. In at least some examples, when forces acting on the inner wall of the inner balloon member equal forces acting on the outer wall of the inner balloon member, the inner balloon member defines a lumen.
Abstract:
Polymer microspheres for embolizing blood vessels and optionally delivering therapeutic agents are provided. The microspheres include PLGA 50:50 and/or Ptx, and are generally formed by emulsion means.
Abstract:
A medical device may be coated with a therapeutic composition that includes a direct oral anticoagulant. An illustrative drug coating composition may comprise an excipient including polylactic acid (PLA), poly(lactic-co-glycolic acid) (PLGA), or poly(vinylidene fluoride)-co-hexafluoropropylene (PVDF-HFP) and a direct oral anticoagulant (DOAC). The illustrative drug coating may be applied to an outer surface of a medical device.
Abstract:
Aqueous liquid embolic compositions as well as method for making and using aqueous liquid embolic compositions are disclosed. An example aqueous liquid embolic composition may include a di-block or tri-block copolymer including a hydrophobic monomer block and a charged (polycationic or polyanionic) block. The charged (polycationic or polyanionic) block may include one or more anions. The aqueous liquid embolic composition may also include templating agent.
Abstract:
Aqueous liquid embolic compositions, for example formed from amino acids, as well as method for making and using aqueous liquid embolic compositions are disclosed. An example aqueous liquid embolic composition may include a di-block or tri-block copolymer including a charged block and a hydrophobic block. The aqueous liquid embolic composition may also include templating agent.