摘要:
There are shown and described embodiments of a closure device for closing holes tissue, for example in the right atrial appendage. The closure device in particular embodiments includes first and second mesh closure members and a tether or stem connecting them. Embodiments of a delivery device for the closure device are also described.
摘要:
A delivery apparatus for introducing an intravascular filter into a body vessel of a patient includes a sheath defining a lumen, an intravascular filter positioned in the lumen, an ultrasound transducer positioned to the application side of the intravascular filter, a guide wire cannula and a tip located at an application side end of the delivery apparatus.
摘要:
Described are methods and systems and system components useful for percutaneously delivering or retrieving vascular implant devices, such as filters, utilizing intravenous ultrasound (IVUS) imaging alone or in combination with external (e.g. transabdominal) ultrasound or other imaging technology. Implants deliverable by such systems, such as vena cava or other vascular filters, can have two or more echogenic markers spaced at such a distance that they are separately discernible by IVUS and/or external ultrasound imaging.
摘要:
Among other things, there are disclosed embodiments of a valve implant that in particular examples are implantable within a blood vessel, which include a first set of elongate members, a second set of elongate members, and a hood affixed to the first set of elongate members. The first set of elongate members is resiliently deformable, and their distal ends are flared radially outward. The distal ends of the second set of elongate members are distal to the ends of the first set of elongate members. The hood is affixed to the first set of elongate members, and seals against the interior wall of the blood vessel in an expanded configuration. When blood flows from the proximal to the distal side of the valve implant, it presses on the hood, compressing the first set of elongate members, breaking the seal.
摘要:
A retrieval apparatus for removing an intravascular filter from a body vessel of a patient includes an outer sheath defining an outer lumen, an inner sheath defining an inner lumen wherein the inner sheath is positioned within the outer lumen, a retrieval member positioned in the inner lumen, an ultrasound transducer positioned on the application side of the retrieval member, a guide wire cannula extending between the outer sheath and the inner sheath, the guide wire cannula including an application side end, and a dilator located at an application side end of the retrieval apparatus, said dilator being coupled to said ultrasound transducer and receiving the application side end of said guide wire cannula.
摘要:
Attachable implements, systems, and methods for identifying the migration of a medical device extending through a percutaneous insertion site of a patient's skin are disclosed. In one embodiment, an attachable implement for identifying migration comprises a attachable implement body having a coupling surface and a skin contacting surface, the coupling surface arranged to couple to a surface of the medical device, and the skin contacting surface arranged to contact the skin of the patient; wherein the attachable implement body is arranged to be side mountable on the medical device and wherein the attachable implement is configured to move from a first position adjacent to the patient's skin to a second position remote from the patient's skin. Systems, methods, and other embodiments are disclosed.
摘要:
Described are methods, cell growth substrates, and devices that are useful in preparing cell-containing graft materials for administration to patients. Tubular passages can be defined in cell growth substrates to promote distribution of cells into the substrates. Also described are methods and devices for preparing cell-seeded graft compositions, methods and devices for preconditioning cell growth substrates prior to application of cells, and cell seeded grafts having novel substrates, and uses thereof.
摘要:
There are shown and described embodiments of a closure device for closing holes tissue, for example in the right atrial appendage. The closure device in particular embodiments includes first and second mesh closure members and a tether or stem connecting them. Embodiments of a delivery device for the closure device are also described.