A medical guidewire assembly is movable through an exit portal of a guidewire introducer. The guidewire introducer and the medical guidewire assembly are each insertable, at least in part, into a patient. The medical guidewire assembly is configured to reduce, at least in part, the hoop stress surrounding a puncture hole extending through the tissue of the patient. This is done in response to movement, at least in part, of the medical guidewire assembly relative to the puncture hole (after the puncture hole has been initially formed).

Methods and devices for treating nasal airways are provided. Such devices and methods may improve airflow through an internal and/or external nasal valve, and comprise the use of mechanical re-shaping, energy application and other treatments to modify the shape, structure, and/or air flow characteristics of an internal nasal valve, an external nasal valve or other nasal airways.

A device for applying radiofrequency energy for sphincter treatment comprising a flexible outer tube, an expandable basket having a plurality of arms movable from a collapsed position to an expanded position, and a plurality of electrodes movable with respect to the arms from a retracted position to an extended position. An advancer is slidably disposed within the outer tube to move the plurality of electrodes to the extended position. An actuator moves the advancer from a first position to a second position to advance the plurality of electrodes. An aspiration tube extends within the outer tube. An assembly includes an aspiration disabler having a first position to enable aspiration from a distal portion of the aspiration tube to a proximal portion and a second position to disable aspiration.

Described here are devices, systems, and methods for forming a fistula between two blood vessels. Generally, the systems may comprise a first catheter and a second catheter, which may comprise one or more fistula-forming elements. The first and second catheters may comprise one or more magnetic elements, which may be used to assist in bringing the first and catheters in closer proximity to facilitate fistula formation. In some variations, the magnetic elements may have magnetization patterns such that the flux generated by the magnetic elements is locally concentrated. In some instances, the system may comprise a magnetic control device, which may comprise a magnet, and may be used to increase or create an attractive force between the first and second catheters.

Presented herein are methods, systems, devices, and computer-readable media for image management in image-guided medical procedures. Some embodiments herein allow a physician to use multiple instruments for a surgery and simultaneously provide image-guidance data for those instruments. Various embodiments disclosed herein provide information to physicians about procedures they are performing, the devices (such as ablation needles, ultrasound transducers or probes, scalpels, cauterizers, etc.) they are using during the procedure, the relative emplacements or poses of these devices, prediction information for those devices, and other information. Some embodiments provide useful information about 3D data sets and allow the operator to control the presentation of regions of interest. Additionally, some embodiments provide for quick calibration of surgical instruments or attachments for surgical instruments.

The present application disclosed a combined hysteroscope instrument operation propeller, which includes a propelling body that can be attached to the hysteroscope body, the instrument can smoothly pass through the blind areas such as the vagina and cervical canal along the hysteroscope body that has already entered with the help of the sheath on the propelling body, and can be operated continuously and flexibly after being sent into the uterus. The present application is beneficial for doctors to quickly, accurately and non-invasively send the treatment instrument into the uterus, which not only reduces the treatment cost, but also achieves a good treatment effect.

Apparatuses and methods are disclosed for the perforation of a communication between the aorta and left atrium. The method includes introducing the apparatus, positioning the apparatus at a location along the aorta, and energizing the apparatus to create a perforation. For example, one method may include: introducing a flexible wire into the left atrium, advancing a dilator along the flexible wire to position the flexible wire adjacent a selected location along the aorta and energizing the flexible wire to create a perforation from the left atrium into the aorta.

A cosmetic method for treating a skin of a person is presented, the method comprises inserting one or more needles to one or more depths into the skin of the person such that at least a tip of at least one needle of the one or more needles is deployed within a muscle layer of the person's skin; applying a negative DC voltage to the one or more needles, while a skin of the person is in contact with a positive electrode to form one or more closed circuits of DC current through the person's body; and providing the DC current for a pre-selected amount of time to damage and/or ablate muscles and/or muscle nerve cells in the muscle layer; thereby providing a skin treatment comprising reducing and/or smoothing wrinkles from the person's skin.

The electrosurgical instrument comprises a basic body configured as a hose or as a hollow rod on which an end piece is configured or into which an end piece is inserted. The end piece comprises a passage channel that comprises a narrowed section at its distal end. The electrode is held in a holder that comprises an extension surrounding the electrode. The extension is configured to extend through the narrowed section of passage channel up to the end surface such that it outcrops at the mouth opening of the narrowed section when the electrode is in the extended position. At this section of extension located at the mouth opening the electrode is connected with the extension.