A balloon-type electrode catheter according to the present invention includes an outer tube, an energizing connector, a balloon including neck portions on both ends of an expansion portion, an inner tube, a distal end tip, strip electrodes formed on an outer surface of the balloon, a metal ring attached to the distal end side neck portion with a distal end portion of each of the strip electrodes secured to an outer circumferential surface of the metal ring, and a lead wire electrically connecting each of the strip electrodes and the energizing connector with a distal end of the lead wire fixed to an inner circumferential surface of the metal ring and with a proximal end of the lead wire fixed to the energizing connector.

A catheter for denervation includes a catheter body extending in one direction to have a proximal end and a distal end and having an inner space formed along the longitudinal direction thereof, a movable member provided at the distal end of the catheter body to be movable along the longitudinal direction of the catheter body, an operating member having a distal end connected to the movable member to move the movable member, a plurality of support members having one end connected to a terminal of the catheter body and the other end connected to the movable member, wherein when the movable member moves to decrease a distance between the terminal of the catheter body and the movable member, at least a partial portion of the plurality of support members is bent so that the bending portion moves away from the catheter body, a plurality of electrodes respectively provided at the bending portion of the plurality of support members to generate heat, and a lead wire respectively electrically connected to the plurality of electrodes to give a power supply path for the plurality of electrodes.

A catheter-mounted balloon includes an inflatable chamber defining a volume expandable from a deflated state to an inflated state, the inflatable chamber having a distal transition portion, a proximal transition portion, and a cylindrical body portion disposed between the distal transition portion and the proximal transition portion. The cylindrical body portion of the inflatable chamber includes a pleat zone having a pleat when the inflatable chamber is in the deflated state. The catheter-mounted balloon further includes an electrode disposed along a wall of the inflatable chamber. The pleat traverses the electrode such that is electrode is pleated as well.

A catheter includes an insertion tube, a flexible substrate and one or more electrical devices. The insertion tube is configured for insertion into a patient body. The flexible substrate is configured to wrap around a distal end of the insertion tube and includes electrical interconnections. The electrical devices are coupled to the flexible substrate and are connected to the electrical interconnections.

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.

A system for modulating bladder function is disclosed. A system for evaluating the electrophysiological function of a bladder is disclosed. Methods for performing a controlled surgical procedure on a bladder are disclosed. A system for performing controlled surgical procedures in a minimally invasive manner is disclosed. An implantable device for monitoring and/or performing a neuromodulation procedure on a bladder is disclosed.

Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a catheter shaft. An expandable member may be coupled to the catheter shaft. The expandable member may be capable of shifting between a folded configuration and an expanded configuration. A plurality of flexible elements may be attached to the expandable member, with a plurality of electrode assemblies disposed on the flexible elements. The flexible elements may have a grooved substrate.

Intrauterine devices and methods for facilitating deployment thereof using a bumper are disclosed. In one embodiment, an intrauterine device comprises a structure including a first central support member and a deployment mechanism coupled to the first central support member. The intrauterine device further comprises a bumper positioned at a distal end of a second central support member and at a more distal position relative to a distal end of the structure so as to prevent the distal end of the structure from contacting the fundus of the uterus of a patient during deployment of the deployment mechanism. In another embodiment, the intrauterine device comprises a bumper coupled to the deployment mechanism and configured to move from a more distal to a more proximal position relative to a distal end of the structure.

A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.

Provided is a flex-PCB catheter device that is configured to be inserted into a body lumen. The flex-PCB catheter comprises an elongate shaft, an expandable assembly, a flexible printed circuit board (flex-PCB) substrate, a plurality of electronic components and a plurality of communication paths. The elongate shaft comprises a proximal end and a distal end. The expandable assembly is configured to transition from a radially compact state to a radially expanded state. The plurality of electronic elements are coupled to the flex-PCB substrate and are configured to receive and/or transmit an electric signal. The plurality of communication paths are positioned on and/or within the flex-PCB substrate. The communication paths selectively couple the plurality of electronic elements to a plurality of electrical contacts configured to electrically connect to an electronic module configured to process the electrical signal. The flex-PCB substrate can have multiple layers, including one or more metallic layers. Acoustic matching elements and conductive traces can be includes in the flex-PCB substrate.