Abstract: A medical device comprising a shaft, a handle housing a proximal end of the shaft, a first channel extending throughout a lumen of the shaft, wherein the first channel is rotatable about a longitudinal axis of the shaft, the channel including a proximal end and a distal end, and an actuator, wherein a distal end of the actuator is configured to engage and disengage with the proximal end of the first channel, such that in an engaged position the actuator and the first channel are rotatable.

Abstract: The present disclosure provides medical devices such as self-expanding stents or tissue lumen stents with an overlapping layer. The medical devices can have a coating or cover disposed over all or a portion of the medical device. The overlapping layer define a doubled back portion at an end of the medical device that includes an elongate section to provide dynamic movement of the end of the medical device relative to a central portion of the medical device.

Abstract: Systems for hydrogel hydrolysis as well as methods for hydrogel hydrolysis are disclosed. An example system may include a syringe barrel having a needle connector disposed thereon. A hydrogel hydrolysis material may be disposed in the syringe barrel. The hydrogel hydrolysis material may be configured to be injected into a hydrogel formed in the body of a patient in order to accelerate the hydrolysis of the hydrogel.

Abstract: Assistive medical accessories and methods for making and using assistive medical accessories are disclosed. An example assistive medical accessory may include a sterile drape configured for use with a medical device. The sterile drape may have a top surface. A visual indicator may be disposed along the top surface. The visual indicator may be configured to provide use information to a clinician using the medical device.

Abstract: A steerable catheter includes an outer sheath defining an outer sheath lumen extending from a proximal region to a distal region. A push ring is secured within the proximal region of the outer sheath lumen. A pull ring is secured within the distal region of the outer sheath lumen. An inner shaft member extends within the outer sheath lumen between the push ring and the pull ring. A pair of push members extend through the outer sheath lumen and secured to the push ring, each of the pair of push members defining a push member lumen extending therethrough. A pair of pull wires are secured to the pull ring, each of the pair of pull wires extending through one of the push member lumens.

Abstract: A clipping system includes an adapter mounted on an insertion device and a clip including first and second jaws connected via hinges so that the first and second jaws are movable between an insertion configuration and an initial deployed configuration. A deployment member is configured to move the clip distally over and off of the adapter so that, as the clip leaves the adapter, the clip moves from the insertion configuration to the initial deployed configuration. An extending member is releasably coupled to the clip and movably connected to the adapter, and is configured to permit the withdrawal of the adapter away from the clip while the extending member remains coupled to the clip to place the system in a review configuration. The extending member is operable to retract the clip over the adapter, freeing the clip from tissue on which it had been clipped.

Abstract: One described aspect is an optical fiber comprising: a fiber core that extends along a fiber axis, is configured to transmit a laser energy along the fiber axis, and terminates at a distal end; a first cladding that extends along the fiber axis, is adjacent to the fiber core, and terminates at a distal end; a coating that extends along the fiber axis and terminates at a distal end, wherein the coating is a gold coating; a second cladding that surrounds a portion of the gold coating along the fiber axis, and terminates at a distal end; an outer jacket that extends along the fiber axis and terminates at a distal end; and a fiber tip. Associated laser systems are also disclosed.

Abstract: A debris removal system includes an elongated shaft extending from a proximal end to a distal end and including a shaft lumen, the shaft being configured to be inserted through a bodily lumen to a target surgical site, a vibration motor coupled to the elongated shaft via a vibration collar, the vibration motor including a rotatable shaft and at least one weight coupled to the rotatable shaft, the weight being asymmetrically shaped about a central axis of the shaft such that rotation of the shaft creates vibrational energy along the length of the elongated shaft to dislodge debris within the target surgical site, and a vacuum pump connected to the elongated shaft and configured to vacuum dislodged debris from the target surgical site through the shaft lumen.

Abstract: A device includes a handle, a shaft and a steering mechanism. The handle includes a first actuator for an end effector. The shaft extends from the handle and sized and shaped to pass through a working channel of an endoscope. A distal end of the shaft includes the end effector. A pull wire extends from the handle to the end effector for actuating the end effector. The mechanism includes a second actuator for bending the distal end relative to a longitudinal axis of the shaft. The mechanism includes a first steering wheel having a first steering wire extending therefrom to the distal end of the shaft. Rotating the second actuator rotates the first steering wheel and tensions the first steering wire to bend the shaft, the pull wire for the end effector remaining actuatable when the distal end is bent.

Abstract: In some aspects, the present disclosure pertains to a polymer that comprises a plurality of polymer arms, wherein a first portion of the polymer arms comprise a reactive end group and wherein a second portion of the polymer arms comprise a branched end group that comprise a plurality of covalently attached diagnostic and/or therapeutic groups, which may be, for example, radiocontrast groups or radioactive groups. Other aspects pertain to a system that comprises (a) a first composition comprising such a polymer and (b) a second composition comprising a multifunctional compound that comprises reactive functional groups that are reactive with the reactive end group of the multi-arm polymer. Still other aspects pertain to a crosslinked reaction product of (a) such a polymer and (b) a multifunctional compound that comprises functional groups that are reactive with the reactive end group of the multi-arm polymer.

Abstract: According to one aspect, a retrieval device may include a sheath having a distal end. The retrieval device may also include an end effector movable relative to the distal end of the sheath. The end effector may include first and second arms. The first arm may include a first opening at a distal portion of the first arm. The second arm may include a second opening at a distal portion of the second arm. The end effector may also include a third arm. The third arm may be slidably received in the first and second openings. A distal portion of the third arm may form at least part of a loop. The loop may extend through the first and second openings.

Abstract: An embolic coil delivery system includes a catheter and an embolic coil disposed within the catheter, the embolic coil including a coil wire and a fiber bundle. A method of producing an embolic coil delivery system includes: advancing a delivery sheath over a distal end of an embolic coil while applying tension to the embolic coil via a retaining device that is attached to the distal end of the embolic coil.

Abstract: In one example, a controller configured for use with a medical device, may include a body configured to removably couple to the medical device. The body may include a gear configured to mate with a first actuator of the medical device; and a second actuator, and the actuation of the second actuator may be configured to initiate movement of the gear and the first actuator.

Abstract: A valve may have a fluid inlet and a fluid outlet. The valve may include a valve stem having a lumen extending from a first opening at a proximal portion of the valve stem to a second opening at a distal end of the valve stem. A plurality of seals may be positioned relative to the valve stem. The valve stem and seals may be configured so that a fluid entering the inlet is prevented from flowing to the outlet in a first position of the valve stem and relative to the inlet and the outlet. The valve stem and the seals may be configured so that a fluid entering the inlet flows to the outlet in a second position of the valve stem relative to the inlet and the outlet, the second position being more distal than the first position relative to the inlet and the outlet.

Abstract: The present disclosure relates generally to the field of medical devices and medical device accessories. In particular, the present disclosure relates to a tool or accessory for cleaning a medical device. For example, the tool or accessory may clean a fluid delivery lumen of an endoscopic submucosal dissection (ESD) knife. The tool or accessory may include a housing with a first portion of an elongate member secured within a first portion of the housing and a second portion of the elongate member extending into a chamber of the housing.

Abstract: Devices and methods for assisting blood flow are provided. The device includes a housing with an inlet and an outlet, and a fluid barrier separating the housing into a first section containing the inlet and outlet, and a second section. The device also includes an impeller shaft coupled to an impeller and a first magnet in the first section of the housing, and a drive shaft coupled to a second magnet in the second section of the housing. The first and second magnets are arranged such that rotation of the drive shaft rotates the second magnet causing rotation of the first magnet, which drives the impeller.

Abstract: A spring element for a contact force sensing medical catheter. The spring element includes a first ring, a second ring spaced apart from the first ring, a plurality of struts connecting the first ring to the second ring, and a plurality of interlocking features. The second ring and the first ring are coaxially aligned with a longitudinal axis of the spring element. The plurality of struts is configured to permit elastic, relative axial and radial displacement between the first ring and the second ring. The plurality of interlocking features is configured to limit the relative axial and radial displacement between the first ring and the second ring.

Abstract: Aspects of the disclosure include systems and methods for planning and/or performing an ablation procedure. Volumetric image data including a needle, such as a physical ablation needle or a virtual needle, can be analyzed to segment the needle within the volume. A first cross-sectional, two-dimensional view of the volume showing a first plane in which an axis defined by the needle lies can be generated and displayed. The view can be manipulated to display a generated second cross-sectional, two-dimensional view of the volume showing a second plane through the volume in which the longitudinal axis defined by the virtual needle lies, wherein the second plane is different from the first plane. Additional segmented features such as lesions in the image data, treatment regions, isotherms, and the like can be included in views to be analyzed from a plurality of views that include the needle.

Abstract: The present disclosure provides devices and methods to identify locations of side branches in a series of intravascular images (e.g., a pre-treatment IVUS pullback, a post-treatment IVUS pullback, or the like) to assist with co-registering the IVUS images with an extravascular image (e.g., angiogram, or the like) or with another set of IVUS images. The present disclosure further provides devices and methods for training a machine learning (ML) model to infer side branch locations from IVUS images and an analytic algorithm for extracting frames from the IVUS images representing side branches.

Abstract: Systems and methods for processing electronic images from a medical device comprise receiving a first image frame and a second image frame from a medical device, and determining a region of interest by subtracting the first image frame from the second image frame, the region of interest corresponding to a visual obstruction in the first image frame and/or second image frame. Image processing may be applied to the first image frame and/or second image frame based on a comparison between a first area of the first image frame corresponding to the region of interest and a second area of the second image frame corresponding to the region of interest, and the first image frame and/or second image frame may be provided for display to a user.