摘要:
The stent for angioplasty has a body in the form of a generally tubular casing capable of being dilated in use from a radially-contracted position to a radially-expanded position. The body includes a support structure made from a first material capable of withstanding this dilation without losing its structural integrity. A structure made from a second material which has been rendered radioactive following the exposure of the stent itself to a neutron flux is associated with at least a portion of the carrying structure.
摘要:
A stent has surface sculpturing, preferably on its outer surface only, having, for example, microspheres, having the function of increasing the actual geometric surface area of the stent, of creating undercuts and roughness to encourage the application of coatings of active or activatable agents, as well as of improving the attachment of the stent to the blood vessel wall.
摘要:
A stent has surface sculpturing, preferably on its outer surface only, having, for example, microspheres, having the function of increasing the actual geometric surface area of the stent, of creating undercuts and roughness to encourage the application of coatings of active or activatable agents, as well as of improving the attachment of the stent to the blood vessel wall.
摘要:
A stent has surface sculpturing, preferably on its outer surface only, having, for example, microspheres, having the function of increasing the actual geometric surface area of the stent, of creating undercuts and roughness to encourage the application of coatings of active or activatable agents, as well as of improving the attachment of the stent to the blood vessel wall.
摘要:
A stent structure includes a stent and one or more fibers disposed on the stent, the fiber adapted to provide a therapeutic agent. Nuclei containing therapeutic agents that impede restenosis may be included within the fiber or within separate particles that are contained within hollow core fibers. The fibers and the particles may be bioerodible. A permeable, biocompatible sheath may be interposed between the stent and the fiber. A kit including a stent, a fiber, and a delivery catheter is also described.
摘要:
A method of treating a biological tissue for biological prostheses includes steps of fixation of the biological tissue via a fixing solution including glutaraldehyde and detoxification of the fixed biological tissue via treatment with a detoxifying solution. The detoxification step includes one or both of eliminating phospholipids via treatment with an elimination solution and a treatment with a detoxifying solution. The elimination solution includes 1,2-octanediol and ethanol. The detoxifying solution includes taurine or homocysteic acid.
摘要:
A system for implanting a heart valve prosthesis in a patient's heart includes a balloon expandable, tissue, stented heart valve and a transfemoral valve delivery device for delivering the stented heart valve to a target site in the patient's heart. The delivery device includes an inflation balloon module for expanding the stented heart valve prosthesis, markers on to assist in location of the delivery device at an appropriate location; and a streamlined cap.
摘要:
Method of assembling a motor vehicle headlight whereby the open end of a rear parabola reflector on the said headlight is fitted round with a flange having a front annular groove designed to receive a rear edge on the front glass, the position of which in relation to the optical axis on the said reflector is adjusted, prior to bonding by pouring adhesive material into the said groove, by means of a number of supporting pins mounted axially through the said flange.
摘要:
A device for implanting an expandable heart valve prosthesis at a valve annulus in a patient's heart includes an implantation device configured to extend from a first opening in the patient's body, through the patient's aorta, through a valve annulus, through an opening in a ventricle, and to exit through the patient's thoracic region. The device further includes a port having a hemostasis valve for providing access through the patient's thoracic region and into the ventricle and at least two interchangeable modules configured for delivery using the implantation device.
摘要:
A system for implanting a heart valve prosthesis in a patient's heart includes a balloon expandable, tissue, stented heart valve, and an apical valve delivery device for delivering the stented heart valve to a target site in the patient's heart. The delivery device includes an inflation balloon module for expanding the stented heart valve prosthesis, markers on the delivery device to assist in location of the delivery device at an appropriate location, and a streamlined cap.