摘要:
A branch vessel prosthesis for use with an aorta stent graft defining a lumen and having a fenestration aligned with a branch vessel, includes an expandable stent that has a tubular portion, a flareable portion, and at least one bending portion located between the tubular and the flareable portions. Upon deployment of the branch vessel prosthesis, the flareable portion is flared by bending of the bending portion.
摘要:
A self centering delivery catheter is provided for delivering a filter into a vessel in a centered manner which aids in the retrieval of the filter. The delivery catheter generally comprises an outer sheath and a cannula disposed inside the outer sheath and axially translatable relative thereto. A set of centering legs are attached to the cannula. The centering legs are operable between a first retracted position and a second extended position, the centering legs moving radially away from the cannula as the centering legs move from the retracted position to the extended position. The relative position of the outer sheath and cannula control the operation of the centering legs. A control wire is disposed inside the cannula and is axially translatable relative thereto. Axial translation of the control wire operates a release mechanism to disengage the filter for delivering the filter into the vessel.
摘要:
A branch vessel prosthesis is provided for use with an aorta stent graft defining a lumen and having a fenestration aligned with a branch vessel, including a generally helical coiled stent, preferably with a graft material affixed thereto to form a branch vessel lumen. At least one full turn at the proximal end of the helical coiled stent has a diameter larger than the diameter of the fenestration so as to retain the proximal end within the aorta stent. At least two full turns of the helical coil have a diameter smaller than the at least one full coil so as to pass through the fenestration upon deployment.
摘要:
A stent introducer is provided for introducing a stented catheter through a hemostatic valve. The stent introducer is inserted into the hemostatic valve to open the valve member and provide an open passageway for the stented catheter. The stent introducer is made from flexible plastic and has a slot that extends along the entire length of the stent introducer. Advantages of the stent introducer include ease of use and improved protection for the stented catheter during introduction.
摘要:
Medical devices are described and illustrated herein. In particular, steerable guide members and catheters useful in the identification and treatment of bodily passages are provided. Methods of identifying and treating bodily passages are also provided.
摘要:
Deflectable catheters, systems, and methods of using deflectable catheters are described herein. An embodiment of a deflectable catheter comprises an elongate member, a handle, and a wire member. The elongate member has a shaft and a flexible member. The shaft defines a first lumen and a second lumen and the flexible member defines a passageway. The flexible member is attached to the shaft such that the passageway defined by the flexible member is in communication with each of the first lumen and second lumen defined by the shaft.
摘要:
Delivery systems and methods of creating an accessory maxillary ostium and implanting a ventilation tube for purposes of ventilation, irrigation, infusion or procedural work are described. The delivery systems include an introducer and an associated ventilation tube. An irrigation and/or infusion catheter may be advanced through the ventilation tube in order to irrigate or express the contents of the sinus cavities. A secondary irrigation and/or infusion catheter or a balloon catheter may be advanced through an outer irrigation and/or infusion catheter, deeply into the sinus cavity, in order to irrigate or express the contents of the sinus cavities. Moreover, the balloon catheter may alternatively or additionally be employed to for dilation of the natural ostium. Still further, a device for delivering drugs, fluids or the like, may be coupled to the ventilation tube for delivery of same.
摘要:
Medical devices are described herein. More particularly, the disclosure relates to medical devices, systems, and methods for the visualization and treatment of bodily passages, such as an airway, sinus cavity, or sinus passages. An exemplary medical device comprises an elongate member, an actuator moveable between an actuator first position and an actuator second position, and a wire member. The elongate member has a first straight, or substantially straight configuration, when the actuator is in the actuator first position and a second curved configuration when the actuator is in the actuator second position.
摘要:
Medical devices, systems, methods, and kits for the medialization of a vocal cord are described. An embodiment of a medical device comprises a proximal portion, a distal portion, and an elongate body extending from the proximal portion to the distal portion. The elongate body defines a thread extending from the proximal portion and the distal portion.
摘要:
Methods of treatment are described. More particularly, methods of treating a tissue within a bodily passage, such as a sinus cavity, airway, or sinus passage with a catheter comprising an elongate tubular member and one or more balloons. The catheter can comprise a light source and/or camera to assist physicians is navigating the catheter to a point of treatment.