Abstract: A stent delivery device is provided that includes an inner member defining a distal tip and a stent holding region, and an outer tubular member slidingly disposed over the inner member and configured to engage the distal tip. Seal members may be disposed on one or more of an outer surface of the inner member, the distal tip, and the outer tubular member. The seal members define a liquid-tight sealed chamber surrounding the stent holding region.

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to devices, systems and methods for air/water and flushing valves. For example, an endoscopic valve of the present disclosure may include a valve stem with contiguous first and second channels and with first and second ports formed within a sidewall of the valve stem. A series of seals may be disposed around an outer surface of the valve stem proximal and distal to the first and second ports. A gating member may be slidably disposed within the proximal channel and a valve insert may be disposed between the proximal and distal channels.

Abstract: A stent delivery device for deploying a low column strength stent may include an inner member having a distal region and a stent receiving area disposed therein. A low column strength stent convertible between a compressed configuration and an expanded configuration may be disposed on the stent receiving area. The stent receiving area may include a soft durometer polymer configured to permit the low column strength stent to sink into the soft durometer polymer when the low column strength stent is in the compressed configuration. An outer member may be moveable between an extended position in which the outer member extends over the stent and a retracted position in which the outer member is proximal of the stent.

Abstract: A medical valve may comprise a valve stem and an operation portion. The operation portion may include a stationary portion, a movable portion which is movable relative to the stationary portion and fixed relative to the valve stem, a seal disposed between the stationary portion and the movable portion, and a biasing member. Movement of the movable portion in a first direction may cause deformation of the biasing member, such that a restorative force of the biasing member urges movement of the movable portion in a second direction opposite the first direction. A frictional force between the seal and one of the stationary portion and the movable portion resists the movement of the movable portion in the second direction.

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: A valve for use in an endoscope may comprise a proximal valve stem member having a first lumen extending from a proximal opening at a proximalmost end of the proximal valve stem member to a distal opening at a distalmost end of the proximal valve stem member. A distal valve stem member may have a second lumen with a proximal opening at a proximalmost end of the distal valve stem member. The proximalmost end of distal valve stem member may be received within the distal opening of the first lumen. The distal valve stem may be movable relative to the proximal valve stem.

Abstract: A device for closing a tissue opening includes a body extending from a first end to a second end and a first anchoring element connected to the first end of the body and a second anchoring element connected to the second end of the body. At least one of the first anchoring element and the second anchoring element is movable between an insertion configuration, in which the at least one of the first and second anchoring elements is insertable through a target tissue such that the body extends across a tissue opening to be treated, and an anchoring configuration, in which the first and second anchoring elements engage target tissue on a first side and a second side, respectively, of the tissue opening.

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to modular assemblies, systems and methods for direct visualization and biopsy of peripheral pulmonary nodules. In one example, a modular assembly of the present disclosure may include a dual-lumen catheter attached to a distal end of a main body, a first lumen may extend through the main body, the first lumen contiguous with a first lumen of the dual-lumen catheter, a second lumen may extend through the main body, the second lumen contiguous with a second lumen of the dual-lumen catheter and an attachment member formed within the main body at a proximal end of the second lumen.

Abstract: A stent delivery device is provided that includes an inner member defining a distal tip and a stent holding region, and an outer tubular member slidingly disposed over the inner member and configured to engage the distal tip. Seal members may be disposed on one or more of an outer surface of the inner member, the distal tip, and the outer tubular member. The seal members define a liquid-tight sealed chamber surrounding the stent holding region.

Abstract: A medical cleaning valve (or cleaning valve) may be configured to provide cleaning functionality to air and water channels of an endoscope. One or more embodiments described herein may include cleaning valves with features and/or components that facilitate differentiating them from procedural valves. In some embodiments, valves may be made from a limited number of parts and materials, to limit their cost. For example, multiple seals may be formed as a single component, such as via overmolding. In another example, wiper seals may be used to accommodate greater manufacturing tolerances. In yet another example, the valve may have a single elastomeric component, or spring cap, which may combine the functionality of a number of components (e.g., a boot, spring, spring housing, and stem cap).

Abstract: A medical cleaning valve (or cleaning valve) may be configured to provide cleaning functionality to fluid (e.g., air and water) channels of an endoscope. Many embodiments described herein may include a cleaning valve (or valve) that is appropriate for single-use and therefore may be disposable. Accordingly, the valve may be made from a limited number of parts and materials, e.g., to limit its cost and/or manufacturing complexity. For example, multiple seals may be integrally formed with a valve stem. In another example, the valve may have an interface member, which may combine and simplify the functionality of a number of components, such as by connecting the valve stem to a valve well, sealing an opening to a lumen in the valve stem, and/or biasing the valve stem into a position relative to the valve well.

Abstract: Stent delivery systems and methods for making and using stent delivery systems are disclosed. An example stent delivery system may include an inner shaft. A deployment sheath may be disposed about the inner shaft. A stent may be disposed between the inner shaft and the deployment sheath. A stent reconstraining member may be secured to an inner surface of the deployment sheath and releasably secured to the stent.

Abstract: Stent delivery systems and methods for making and using stent delivery systems are disclosed. An example stent delivery system may include an inner shaft. A deployment sheath may be disposed about the inner shaft. A stent may be disposed between the inner shaft and the deployment sheath. A stent reconstraining member may be secured to an inner surface of the deployment sheath and releasably secured to the stent.

Abstract: A medical device may comprise a handle portion; an insertion portion having a proximal end portion at the handle portion, wherein the insertion portion includes a lumen therein and a distal end having a distal opening in communication with the lumen; and a member disposed within the lumen, the member having a distal end portion with an imaging device. The member may be configured to transition between a first configuration and a second configuration. In the first configuration, the imaging device may face distally, and, in the second configuration, the imaging device may face proximally. Extending the distal end portion of the member distally past the distal opening may cause the member to transition from the first configuration to the second configuration.

Abstract: A method of loading an expandable stent into a delivery device may include positioning a middle portion of the expandable stent in a collapsing fixture including a passage extending therethrough, radially compressing the middle portion of the expandable stent in the passage before any other portion of the expandable stent while a first end of the expandable stent is disposed outside of the passage, moving the collapsing fixture relative to the expandable stent, radially compressing the expandable stent from the middle portion toward the first end of the expandable stent, and inserting the first end of the expandable stent followed by the middle portion of the expandable stent into a distal end of an elongate outer sheath of the delivery device.

Abstract: Medical devices, assemblies and methods for guarding sharp tips of medical needles are disclosed herein. Some embodiments include an expandable device configured to be at least partially disposed within the needle lumen. The device may include an expandable distal portion that is designed to shift between a first configuration in which the expandable distal portion has an outer diameter that is the same as or less than the inner diameter of the needle lumen and a second configuration in which the expandable distal portion has an outer diameter that is greater than the inner diameter of the needle lumen. An elongated inner member may be used to shift the expandable distal portion from the first configuration to the second configuration.

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to medical systems and methods configured to shield the sharpened distal end of needles, such as exchangeable biopsy needles. The biopsy needles may be used for tissue biopsy and sampling under radial ultrasound guidance.

Abstract: A biopsy needle system includes a needle extending from a tissue piercing distal end to a proximal end. The needle defines a lumen extending from the distal end at least a portion of a length thereof and houses a target tissue. The system also includes an elongated member defining a channel therethrough open at a proximal end. The channel is sized and shaped to permit passage of the needle therethrough. Further, the system includes an end cap coupled to the distal end of the elongate member. The end cap includes a hole extending through a lateral wall thereof. The hole is sized and shaped to permit passage of the needle therethrough. The end cap further includes a ramp extending from the channel to the hole to guide the needle through the hole. The ramp is angled with respect to a longitudinal axis of the elongated member.

Abstract: The present disclosure is directed to a delivery catheter with a mechanism of discharging an adhesive during and/or immediately prior to deployment of the medical device by the delivery catheter.

Abstract: A tubular prosthesis that includes a scaffolding formed by at least one scaffolding filament; a cover; and at least one controlled ingrowth feature constructed and arranged to abut an inner surface of a lumen wall when the prosthesis is implanted in the body lumen. The controlled ingrowth feature may extend inwards or outwards from the prosthesis outer surface. The controlled ingrowth feature may be formed by a scaffolding filament; by a separate filament; by the cover; and combinations thereof.