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).

The shaft-type instrument (1) has a shaft part (2), fixedly connected at one end to a shaft grip (3), and a sliding part (4). The sliding part (4) is displaceably mounted relative to the shaft part (2) and is, at one end, in operative connection with a pretensioned handgrip (5) such that by actuating the handgrip (5), the sliding part (4) is displaceable counter to the pretension. A respective lever arm (7, 7′) is articulated at two spaced apart shaft articulation points (6, 6′) on the shaft part (2) or shaft grip (3). The handgrip (5) has a coupling section (8) which connects the lever arms (7, 7′) and coupling joints (9, 9′) to one another such that same can pivot in the same direction. The coupling joints are spaced apart and a grip section (10) extends transverse to the coupling section (8) and to the shaft part (2).

The present disclosure generally relates to the field of medical devices for treatment and diagnosis of paranasal sinus conditions and methods of using same. There is disclosed a device having a hollow shaft configured to be inserted into a paranasal sinus through a natural opening thereof. The hollow shaft is shaped/configured to reach a treatment area within the paranasal sinus.

The present disclosure is a catheter assembly and related method that allows laceration of either a surgical valve or transcatheter valve leaflet to facilitate flow to the coronary arteries during valve in valve interventions.

A joint stabilization (reduction) system and associated methods and tools for placement of the system in an open or minimally invasive technique. The joint stabilization system includes a flexible prosthetic band for stabilizing the bones in proper position and a connector mechanism for joining the two ends of the prosthetic band around the bones. One end of the prosthetic band can be permanently attached to the connector.

A concentric tube steerable device includes a plurality of tubes having a nested, concentric configuration. The tubes include an outer tube and an inner tube that extends coaxially within the outer tube. The inner tube terminates at a tip, and a pose of the tip is effectuated through individual or collective rotation or translation of the tubes about a tube axis. The concentric tube steerable device includes an actuator for rotating at least one tube about a respective tube axis, and a translator for translating at least one tube along a respective tube axis. Each tube includes a precurved portion and a corresponding axis of precurvature. For at least one tube, a flexural rigidity of the tube along its axis of precurvature is less than a flexural rigidity of the tube along a second axis that is perpendicular to the axis of precurvature, thereby improving stability of the tube.

Embodiments of the present disclosure include a device for passing a guidewire around an anatomical structure within a body, comprising a catheter including an elongated tube having at least a first lumen and a second lumen, a guidewire configured to pass through the first lumen of the catheter, and a snare configured to pass through the second lumen of the catheter. A first exit of one of the first lumen and the second lumen may be positioned at or near a distal tip of the catheter, and a second exit of another of the first lumen and the second lumen may be positioned on a side of the catheter at a distance proximal to the distal tip of the catheter. A portion of the catheter distal to the second exit may be configured to bend around at least a portion of the anatomical structure of interest within the body.

A joint stabilization (reduction) system and associated methods and tools for placement of the system in an open or minimally invasive technique. The joint stabilization system includes a flexible prosthetic band for stabilizing the bones in proper position and a connector mechanism for joining the two ends of the prosthetic band around the bones. One end of the prosthetic band can be permanently attached to the connector.

Methods and systems for modulating intraosseous nerves (e.g., nerves within bone) are provided. For example, the methods and systems described herein may be used to modulate (e.g., denervate, ablate) basivertebral nerves within vertebrae. The modulation of the basivertebral nerves may facilitate treatment of chronic back pain. The modulation may be performed by a neuromodulation device (e.g., an energy delivery device).

An apparatus for determining alignment between a source device and a target device includes the source device, the target device, and a processing system. The source device includes a first spatially variant field generator for generating a first spatially variant electric field, and a second spatially variant field generator for generating a second spatially variant electric field. The second spatially variant electric field is angularly offset with respect to the first spatially variant electric field. The target device includes a sensor configured to detect a first signal from the first spatially variant electric field and a second signal from the second spatially variant electric field. The processing system is configured to determine alignment between the first source device and the target device based on the first and second signals from the first and second spatially variant electric fields by the target device.