摘要:
Tubing made of two or more polymers circumferentially arranged around the perimeter of the tubing in a single layer may be useful as medical tubing. Specifically, such tubing may be useful in catheters, sheaths, sheath introducers, implant delivery systems, and other medical devices having elongated tubular components. Selection of the two or more polymers based on the durometer and melting temperature permits optimization of axial strength and flexibility for particular applications. Such tubing may be extruded as a single layer tubing or a multi-layer tubing where the additional layers may be single material layers or more multi-polymer layers.
摘要:
Systems and methods are provided for securely communicating a print job to a printer, the systems and methods pausing the print job in a print queue on a client computer, obtaining first authentication information regarding a user at the client computer, obtaining second authentication information regarding a user at a release station adjacent the printer, communicating the second authentication information from the release station to the client computer, and releasing the print job from the print queue if the second authentication information matches the first authentication information.
摘要:
An ablation device for creating a lesion within a body is provided. The ablation device includes a shaft having a proximal end and a distal end, wherein at least a portion of the shaft is bendable to form a desired configuration. A clamp assembly is secured to the distal end of the shaft. The clamp assembly has a first jaw and a second jaw, the second jaw moveable relative to the first jaw to open or close the clamp assembly. The ablation device also includes a first electrode secured to the first jaw of the clamp assembly, a second electrode secured to the second jaw of the clamp assembly, and a handle connected to the proximal end of the shaft.
摘要:
A medical probe for use with tissue includes an elongate member having a proximal end and a distal end, an operative element carried at the distal end of the elongate member, and a stabilizer configured for applying a vacuum force to secure the operative element relative to the tissue. A method of performing a medical procedure on a patient includes introducing a medical probe having an operative element within the patient, the operative element being adjacent a target tissue, applying a vacuum force between the medical probe and the target tissue to secure the operative element relative to the target tissue, and operating the operative element to perform the medical procedure on the target tissue while the operative element is secured relative to the target tissue.
摘要:
An ablation system includes an ablation source, an ablation probe having an ablation element coupled to a power terminal of the generator, and a ground probe coupled to a return terminal of the generator, the ground probe configured to be inserted within a body during use. One of the ablation probe and the ground probe is configured for being intravascularly introduced to an interior of an organ, and another of the ablation probe and the ground probe is configured for being extravascularly placed in contact with an exterior of the organ. A method of ablating tissue having a thickness includes placing one of an ablative element and a ground element in a first location adjacent the tissue, placing another of the ablative element and the ground element in a second location adjacent the tissue, and delivering ablation energy through the thickness of the tissue between the ablative and ground elements.
摘要:
Systems and methods for delivering energy to passageways in a patient, such as airways in the lung of a patient for treating asthma. One embodiment of a method for delivering energy to a passageway comprises positioning an access device in a lung airway of a patient and advancing an elongated body of a treatment device along the access device until an energy delivery unit at a distal portion of the elongated body projects from the access device. The method can further include expanding the energy delivery unit such that energy delivery elements contact a sidewall of the airway and activating an energy supply coupled to the treatment device such that energy is delivered to the sidewall of the airway. A single person physically operates both the access device and the treatment device while expanding the energy delivery unit and activating the energy supply.
摘要:
Devices, systems and methods for providing energy to treat large areas of tissue. Several embodiments of the devices control resistance or other parameters to provide substantially uniform current density along a length of tissue with reduced edge effects.
摘要:
Systems and methods for delivering energy to passageways in a patient, such as airways in the lung of a patient for treating asthma. One embodiment of a method for delivering energy to a passageway comprises positioning an access device in a lung airway of a patient and advancing an elongated body of a treatment device along the access device until an energy delivery unit at a distal portion of the elongated body projects from the access device. The method can further include expanding the energy delivery unit such that energy delivery elements contact a sidewall of the airway and activating an energy supply coupled to the treatment device such that energy is delivered to the sidewall of the airway. A single person physically operates both the access device and the treatment device while expanding the energy delivery unit and activating the energy supply.