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.

Embodiments of the invention provide a hollow cable for conveying radiofrequency and/or microwave frequency energy to an electrosurgical instrument that can fit within, e.g. slide relative to, the hollow cable. The hollow cable provides a bipolar electrical connection to the electrosurgical instrument that is maintained when the electrosurgical instrument is rotated relative to the hollow cable. The cable may comprise a hollow coaxial transmission line having a rotatable component mounted at its distal end. The rotatable component comprises a longitudinal passageway continuous with the hollow coaxial transmission line. The rotatable component is rotatable relative to the transmission line and comprises a first and second conductive portions that are respectively electrically connected to first and second terminals on the coaxial transmission line and which are configured to maintain an electrical connection with their respective terminal when rotated relative to the coaxial transmission line.

In one embodiment, a medical system includes a catheter configured to be inserted into a body part of a living subject, and including a deflectable element having a distal end, an expandable distal end assembly disposed at the distal end of the deflectable element, and comprising a plurality of electrodes, a distal portion, and a proximal portion, and configured to expand from a collapsed form to an expanded deployed form, and a stretchable irrigation tube disposed between the distal portion and the proximal portion, and comprising a plurality of irrigation holes, and configured to stretch longitudinally when the distal end assembly is collapsed from the expanded deployed form to the collapsed form.

The disclosure includes a vein ablation system, comprising a catheter having an elongated body. In some embodiments, the vein ablation system comprises an ablation device at a distal portion of the elongated body. According to some embodiments, the vein ablation system comprises a control device at a proximal portion of the elongated body. The control device may comprise an input mechanism configured to simultaneously control at least two of a longitudinal translation of the ablation device through a target vessel, a rotation of the ablation device about a central longitudinal axis, and an infusion of a chemical agent into the target vessel.

A non-invasive and permeable RF diagnosis and treatment equipment and its catheter are provided. The catheter which comprises a tube body, a RF electrode array and a flexible protecting net has a retractable cavity, and the RF electrode array is attached to an outer surface of the retractable cavity; the flexible protecting net surrounding outside of the RF electrode array has a connector connected with the tube body and multiple holes. The retractable cavity has a smaller volume contraction state and a larger volume expansion state. Using the catheter, when inserting or pulling out the catheter, the RF electrode array will not contact the inner wall of the organ, but the flexible protecting net contacts the inner wall of the organ. In this way, the scratch of the inner wall of the organ caused by the RF electrode array can be minimized or even avoided through the flexible protecting net.

A medical device includes a shaft including a central lumen configured to direct a flow of fluid through the shaft, and an electrode positioned at a distal portion of the shaft. The electrode includes an electrode lumen in fluid communication with the central lumen, and the electrode lumen is configured to receive the flow of fluid from the central lumen. The electrode also includes one or more channels angled relative to the electrode lumen, and the one or more channels are in fluid communication with the electrode lumen to receive the flow of fluid from the electrode lumen. The one or more channels are configured to divert the flow of fluid from the electrode lumen toward one or more outlets laterally offset from the electrode lumen.

The present invention relates to a medical device for generating a plasma-activated liquid, a system for generating plasma-activated liquids comprising said device, and a method for generating a plasma-activated liquid. It also relates to a method for prophylaxis and treatment of postoperative adhesions.

Medical apparatus includes an insertion tube configured for insertion into a body cavity of a patient and an expandable assembly connected distally to the insertion tube and comprising electrodes, which are configured to apply electrical energy to tissue within the body cavity. A flexible porous sheath is fitted over the expandable assembly and configured to contact the tissue within the body cavity so that the electrical energy is applied from the electrodes through the sheath to the tissue.

A medical device includes a shaft including a central lumen configured to direct a flow of fluid through the shaft, and an electrode positioned at a distal portion of the shaft. The electrode includes an electrode lumen in fluid communication with the central lumen, and the electrode lumen is configured to receive the flow of fluid from the central lumen. The electrode also includes one or more channels angled relative to the electrode lumen, and the one or more channels are in fluid communication with the electrode lumen to receive the flow of fluid from the electrode lumen. The one or more channels are configured to divert the flow of fluid from the electrode lumen toward one or more outlets laterally offset from the electrode lumen.

Ablation systems and methods of the present disclosure include a catheter including one or more image sensors. The one or more image sensors can facilitate, for example, positioning an ablation electrode at a treatment site of an anatomic structure and, additionally or alternatively, can facilitate controlling delivery of therapeutic energy to a treatment site of an anatomic structure.