摘要:
The invention provides a medical device delivery system comprising an offset coupling region interposed between an elongated hypotube guide member or catheter and a support segment. The medical device to be delivered is disposed about the support segment and contained and/or constrained within a containment element. The medical device may be released from the containment element by moving an actuation element from a first position to a second position. The offset coupling region allows the actuation element to exit a lumen within the guide member and to engage the containment element in the first position while traveling along a line generally coaxial with the lumen of the guide member.
摘要:
A device can easily and releasably secure a medical wire such as a guidewire or a filter wire. In some instances, such a device can include a wire holding device that may be considered to be disposable. A wire holding device may include a base fixture, a clamp fixture, holding apparatus to hold the clamp fixture to the base fixture, releasing apparatus to release the clamp fixture from the base fixture, and selecting apparatus to select between the holding apparatus and the releasing apparatus.
摘要:
Methods for determining the size, pathology, and volume of embolic debris captured in an embolic protection filtering device. The methods may include providing an embolic protection filtering device and scanning the filtering device with a computed tomography scanner. The methods may also include analyzing digital images produced during the scanning step.
摘要:
Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.
摘要:
Devices constrain a distal portion or region of a wire, such as a guidewire or a filterwire, from movement at or near a proximal portion or region of the wire. A magnetic field may be used to constrain a wire passing through a hub. A clamping apparatus may include first and second clamps that, when used in combination, restrain wire movement while advancing an exchange device. A guide catheter may include an anchor movable between an open configuration and a closed configuration.
摘要:
Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.
摘要:
The invention provides a filter device associated with a guide wire, a device for deploying the filter from a containment element associated with the filter, and a method of deploying the filter from the containment element.
摘要:
This invention provides a filter device attached to a guidewire, tube, or catheter and a device for deploying the filter. The deployment device employs heating to activate a shape memory material moving a free end of a latch with respect to the guide wire, tube, or catheter thereby releasing the filter from a containment element. The actuation mechanism of the deployment device is well suited to the deployment of certain filter elements as well as other medical devices.
摘要:
Methods for determining the size, pathology, and volume of embolic debris captured in an embolic protection filtering device. The methods may include providing an embolic protection filtering device and scanning the filtering device with a computed tomography scanner. The methods may also include analyzing digital images produced during the scanning step.