A sheath for producing a fully sealed access to the interior of a vessel of an animal or human body comprises a base sheath having a tubular body defining a pass-through channel. The base sheath is adapted to be inserted into the vessel through a vessel aperture. A wall of the tubular body of the base sheath has a through channel. This channel extends in the wall from the distal end towards the proximal end. The channel can be present separately from the pass-through channel of the base sheath or can form a sideways extension of the pass-through channel, at least at the distal end. Such through channel is adapted to conduct blood from the vessel to the proximal end of the sheath when the sheath has been inserted into a vessel.

A medical valve assembly includes a tube extending between a first and second tube end along an axis, and a plunger plate extends radially from the second tube end. A valve housing surrounds the tube and includes a radially inwardly extending flange. A compression member is biased against the plunger plate and compresses an elastomeric seal from a non-compressed condition to a compressed condition to establish a sealed condition of the medical valve assembly. An inner surface of the elastomeric seal in the non-compressed condition has a plurality of planar portions and a plurality of radiused portions, with adjacent planar portions interconnected with one of the radiused portions to improve a closure of the elastomeric seal during compression. The inner surface preferably includes three planar portions and three radiused portions to define a generally triangular-shaped inner surface as viewed in cross section in the non-compressed condition.

A urological device adapted for placement in a urethra of a user for treatment of incontinence includes a stem, an anchor portion connected to a distal end portion of the stem, a bladder retainer connected to a proximal end of the stem, and a urological valve connected to the proximal end of the stem. The urological valve includes a plurality of movable leaflets connected to and extending in a proximal direction way from the proximal end of the stem. The movable leaflets have an at-rest closed configuration adapted to prevent a flow of urine through the stem, and the movable leaflets are adapted to evert in a distal direction to provide the urological valve with an open configuration adapted to allow urine to flow through the stem.

Access assemblies includes an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, and a seal assembly disposed distal of the guard assembly. In embodiments, the seal assembly includes a plurality of seal segments in an overlapping configuration. Each seal segment of the plurality of seal segments includes a seal portion having a smooth surface and a ribbed surface. The ribbed surfaces include a plurality of ribs extending in a radial direction.

A delivery catheter including a valve body having a closeable valve opening for introducing a medical device in insertion direction into, in particular, a blood vessel, the valve opening, when a medical device is not introduced, tapering in the insertion direction, and a sealing section, which in a closed position at least in sections is subject to a pretension, directly adjoins the taper, so that the sealing section, when a medical device is introduced, is actuated from the closed position into an open position in such manner that the sealing section encloses the medical device in a substantially fluid-tight manner.

The disclosure is directed to a system for maintaining hemostasis during introducing or withdrawing an interventional device. The system includes a housing. The housing includes a first end, a second end and a side wall defining a housing chamber. The system also includes a first funnel-shaped member disposed at least partially within the housing chamber. The first funnel-shaped member includes an inner portion, a middle portion and an outer portion. The inner portion of the first funnel-shaped member includes an elastic orifice, which is aligned with the through channel of the housing. The first funnel-shaped member includes an open configuration and a closed configuration. When the first funnel-shaped member is in the closed configuration, the elastic orifice is substantially closed, and when the first funnel-shaped member is in the open configuration, an interventional device is introduced through the system and the elastic orifice is open.

An expandable introducer assembly includes a dilator subassembly extending from a proximal end to a distal end. The dilator subassembly includes a dilator having an insertion portion disposed adjacent the distal end, an expansion portion disposed adjacent the distal end, and a tapered transition portion disposed between the insertion and expansion portions. The dilator subassembly includes a distal sheath disposed in overlaying relationship with the insertion portion of the dilator. An introducer subassembly is disposed in coaxial relationship with the expansion portion of the dilator, and includes a valve disposed adjacent the proximal end and an introducer sheath extending from the valve in overlaying relationship with the expansion portion of the dilator. An expandable sheath subassembly is releasably interlocked with the dilator subassembly and includes an expandable sheath disposed in overlaying relationship with the tapered transition portion and in nested relationship between the insertion portion and the distal sheath.

Hemostasis valves and methods for making and using hemostasis valves are disclosed. An example hemostasis valve may include a main body having a distal end region and a proximal end region. A first seal member may be disposed within the proximal end region of the main body. A cartridge may be at least partially disposed within the proximal end region of the main body. The cartridge may include a second seal member. The cartridge may have one or more projections formed thereon. The proximal end region of the main body may have one or more recesses formed therein. The one or more recesses may be designed to engage the one or more projections. A plunger may be coupled to the proximal end region of the main body.

A medical valve has a housing with an inlet housing and an outlet housing. The interior of the inlet housing and/or the outlet housing has a contact surface. A resilient element sits within the housing and controls fluid flow through the inlet. The resilient element has a proximal portion with a normally closed aperture configured to open when actuated by a medical device. The resilient element also has a distal portion adjacent to the outlet, and a central portion between the proximal portion and the distal portion. The central portion has a wall that defines a fluid chamber in the open mode and in the closed mode. The wall has at least one projection extending radially outward. The projection maintains compressive contact with the contact surface of the housing and applies an inwardly compressive force on the resilient element, increasing the wall stiffness.

A sheath device for inserting a catheter into a patient's body is described. The device has a first sheath with a proximal end and a distal end. When the device is used as intended, the distal end of the first sheath is provided for arrangement in the patient's body and the proximal end of the first sheath is provided for arrangement outside the patient's body. The first sheath comprises a tubular section and a sheath housing, which is disposed at the proximal end of the section and has a receiving channel for a strand-shaped body. The device solves the problem of reliably fixing a second sheath or a catheter with respect to the first sheath by providing a clamping element on the receiving channel for fixing a strand-shaped body in the receiving channel by way of clamping.