摘要:
A positioning anchor is provided for a stent-graft for implantation to treat a damaged body lumen. The positioning anchor is generally tubular surrounding a primary fluid conduit. Arms extend laterally from the generally tubular structure of the anchor surrounding lateral fluid conduits. The form of these arms is preferably custom configured to match a particular patient's luminal geometry. The anchor thus fits within the luminal geometry to remain in a desired fixed position for implantation of the anchor and any stent-graft coupled to the anchor. The anchor is most preferably formed with two walls having a void therebetween which can be filled with fixation media to further secure the anchor at the desired implantation site. A lumen shaper balloon and delivery catheter are also disclosed for proper delivery, expansion and inflation of the positioning anchor and stent-graft elements according to this invention.
摘要:
The present invention relates to devices and methods of operating the devices that contribute to curbing appetite and/or reducing food intake. In some embodiments, the methods and devices of the present invention include as intestinal/duodenal insert comprising an elongated member with at least one flow reduction element that can cause the stimulation of one or more biological signals of satiety. Some embodiments of the inserted device are anchored at the duodenal site by an anchoring member residing in the stomach, other embodiments of the device are stabilized at a targeted site by appropriate dimensions of length as well as one or more angled portions of the device that correspond to angled portions of the targeted site in the dodenum. Embodiments of the device exert effects by virtue of physical presence, as well as by more active forms of intervention, including release of bioactive materials and electrical stimulation of neurons.
摘要:
A bone block for insertion into a patient's intervertebral space. A method for inserting a bone block into a patient's intervertebral space, comprising: supporting the bone block in an inserter; advancing the inserter into the intervertebral space; rotating the inserter, thereby separating adjacent vertebrae; separating the bone block and the inserter with a push rod; and removing the inserter from the intervertebral space.
摘要:
The invention relates to devices that are stabilized at an intraluminal residence site in the gastrointestinal tract by their conformation, including dimensions of length and curvature. The device as a whole corresponds to the conformation of the residence site; more particularly, the curved or angled portions correspond to the curved or angled portions of the residence site and do not conform to an immediately proximal or distal site. In some embodiments, the conformationally stabilized device may effect a change in the residence site shape that contributes to stability of the device. Some embodiments are directed toward curbing appetite and/or reducing food intake, other embodiments may be directed toward other therapeutic ends. Some embodiments of the device are designed to reside wholly in the duodenum; others reside principally within the duodenum but extend proximally into the gastric antrum, while other embodiments are designed to reside elsewhere within the gastrointestinal tract.
摘要:
A bone block for insertion into a patient's intervertebral space. A method for inserting a bone block into a patient's intervertebral space, comprising: supporting the bone block in an inserter; advancing the inserter into the intervertebral space; rotating the inserter, thereby separating adjacent vertebrae; separating the bone block and the inserter with a push rod; and removing the inserter from the intervertebral space.
摘要:
A spinal surgery system having a base, a cross member suspended from the base, and a pair of cannula guides suspended from the cross member, wherein the cannula guides are adapted to hold cannulae received therein such that the canulae remain co-planar with one another as the cannula guides are moved to various positions in the patient's intervertebral plane. By first suspending a pair of radiopaque markers in the cannual guides, and then viewing the image of the radiopaque markers, the cannulae guides can be aligned so that when the radiopaque markers have been removed and replaced with cannulae, the cannulae can be positioned along various paths which are disposed in the patient's intervertebral plane such that surgical tools can be advanced in preferred paths toward the patient's intervertebral space.
摘要:
The invention relates to devices that are stabilized at an intraluminal residence site in the gastrointestinal tract by their conformation, including dimensions of length and curvature. The device as a whole corresponds to the conformation of the residence site; more particularly, the curved or angled portions correspond to the curved or angled portions of the residence site and do not conform to an immediately proximal or distal site. In some embodiments, the conformationally stabilized device may effect a change in the residence site shape that contributes to stability of the device. Some embodiments are directed toward curbing appetite and/or reducing food intake, other embodiments may be directed toward other therapeutic ends. Some embodiments of the device are designed to reside wholly in the duodenum; others reside principally within the duodenum but extend proximally into the gastric antrum, while other embodiments are designed to reside elsewhere within the gastrointestinal tract.
摘要:
Devices are described that are adapted and configured for use within the duodenum of a mammal. One aspect of the device includes a spine having a proximal end and a distal end; an atraumatic feature positioned on at least one of the proximal end and the distal end of the spine; and a flow reduction element positioned along the spine and having a variable porosity along its length. In another aspect, there is a flow reduction device adapted and configured for use within the duodenum of a mammal having a spine having a length, a proximal end and a distal end; a first atraumatic feature positioned adjacent to the spine proximal end; a second atraumatic feature positioned adjacent to the spine distal end wherein the length of the spine is selected so that when the first atraumatic feature is in the stomach the second atraumatic feature is in the fourth portion of the duodenum; and a flow reduction element having a proximal end, a distal end, an interior portion, an exterior portion and a variable porosity between the proximal end and the distal end. Additionally or alternatively, some or all of the components of the device may be formed from or coated with a lipid-philic material. There is also provided a method for adjusting the passage of ingesta through the duodenum of a mammal. The method includes placing the distal end of a flow reduction device in the duodenum of a mammal; placing the proximal end of the flow reduction device in a stomach of the mammal; expanding within the duodenum of the mammal a variable porosity flow reduction element supported by the flow reduction device; and directing at least a portion of the flow of ingesta through the duodenum through the proximal end of the variable porosity flow reduction element and into an interior portion of the variable porosity flow reduction element.
摘要:
A method for inserting a bone block into a patient's intervertebral space, comprising: supporting the bone block in an inserter; advancing the inserter into the intervertebral space; rotating the inserter, thereby separating adjacent vertebrae; separating the bone block and the inserter with a push rod; and removing the inserter from the intervertebral space.
摘要:
A method of positioning a cannula along a path in a patient's intervertebral plane, comprising: suspending a cross member across a patient, the cross member having two cannula guides attached thereto, the cannula guides each being adjustably movable both along the length of the cross member and around a central longitudinally extending axis of the cross member; suspending radiopaque markers from the cannula guides; aligning the radiopoaque markers with the intervertebral plane as viewed in a radio-image, thereby aligning the cannula guides with the intervertebral plane; and advancing a cannula through the cannula guide.