A catheter assembly may include a catheter adapter, which may include a proximal end, a distal end, and a lumen extending between the proximal end and the distal end. The distal end may include a catheter configured to be inserted into vasculature of a patient. The catheter assembly may also include a septum, which may be disposed within the lumen of the catheter adapter. The septum may be secured within the lumen in response to increased pressure by one or more of the following: one or more septum stoppers, a retention disc of a needle assembly, a U-shaped washer, and a conical washer.

Devices, systems and methods for controlling, regulating, altering, transforming or otherwise modulating the delivery of a substance to a delivery site. The devices, systems and methods optimize the delivery of the substance to an intended site, such as a vessel, vascular bed, organ and/or other corporeal structures, while reducing inadvertent introduction or reflux substance to other vessels, vascular beds, organs, and/or other structures, including systemic introduction.

A device can be coupled to a foley catheter inserted into the bladder of a patient, where the foley catheter includes a urine passage through which urine can be drained from the bladder. The device includes a pressure sensor that is connected to a urine outlet of the urine passage and configured to measure a pressure value of the urine being drained through the urine outlet, a processor connected to the pressure sensor and configured to determine whether the foley catheter can be removed by comparing the pressure value and a predetermined threshold value, and a display unit connected to the processor and displaying whether the foley catheter can be removed according to the control of the processor.

A method of transarterial embolization agent delivery at a low pressure is provided. The method comprises advancing a delivery device with an occlusion structure in a retracted non-occlusive configuration through a supply artery to a vascular position in the supply artery that is in the vicinity of a target anatomical structure, the target structure having terminal capillary beds, expanding the occlusion structure from the retracted non-occlusive configuration to an expanded occlusive configuration, lowering a mean arterial pressure in a vascular space distal to the expanded occlusion structure, redirecting fluid flow from the collateral vessels toward the lowered pressure vascular space and into the target anatomical structure, injecting an embolization agent through the delivery device and into the lowered pressure vascular space, and delivering the embolization agent from the lowered pressure vascular space into the target anatomical structure. Other catheter assemblies and methods of use are also disclosed.

The invention provides a catheter including: a first lumen adapted for draining a first fluid from a subject; a second lumen adapted for passing a second fluid through the second lumen; and a third lumen adapted for passing a third fluid through the third lumen such that the third fluid can exit the third lumen to bathe at least a part of an outside surface of the catheter. The invention further provides a kit and/or system including said catheter and method of use for said catheter.

The invention comprises an indwelling medical device which is capable of delivering a therapeutic agent evenly along the length of the indwelling portion, including the outer wall, of the device.

The present invention relates to a stopcock for use in intravenous catheter apparatus and infusions of intravenous fluid to a patient. An intravenous catheter apparatus (10) comprising: an integrated three-way stopcock assembly (12), and a catheter hub assembly (14) having a proximal end (30a) configured to be connected to a needle hub (28) having a needle (18), and having a distal end (32a) configured to be connected to a catheter tube (16), wherein a straight needle (18) is capable of passing through said proximal end (30a) and distal end (32a) of the catheter hub assembly (14), in a ready position of the intravenous catheter apparatus (10), said catheter hub assembly (14) includes: a wing housing (36) at the distal end (32a), a housing (38) at the proximal end (30a), and a body portion (40) in between housing said three-way stopcock assembly (12); wherein said body portion (40) comprises an entry port (44) in communication with said housing (38), an exit port (46) in communication with said wing housing (36), wherein the entry port (44) and the exit port (46) extend along a horizontal line in an axial direction (A), and an injection port (48), wherein all of these ports (44, 46, 48) are confluent at a central chamber (50) configured within the body portion (40); wherein said three-way stopcock assembly (12) has a top portion (52a) and an opposing bottom portion (54a), both along a vertical line perpendicular to the horizontal line, as well as a handle (56) configured in said top portion (52a), wherein the handle (56) has a first portion (58) parallel to the horizontal line and a second portion (60) parallel to the injection port (48), in the ready position, and wherein the three-way stopcock assembly (12) has rotation capabilities relative to the body portion (40) of the catheter hub assembly (14).

A valve connector for a tunable valve is disclosed, with tunable features to allow for optimization. The tunable valve can include slits, which may be preferentially placed, angled and sized to optimize the crack pressure, maintenance pressures, and clearance characteristics of the connector. The tunable valve may also include a recess in the area of an exemplary center slit, which may be sized further modify the characteristics of the connector valve. The valve may be preferentially curved along either a lateral axis or a transverse axis. The tunable valve may be a proximal valve that is capable of being secured between proximal housing and distal housing. The proximal housing opening may be preferentially shaped.

Devices, systems and methods for controlling, regulating, altering, transforming or otherwise modulating the delivery of a substance to a delivery site. The devices, systems and methods optimize the delivery of the substance to an intended site, such as a vessel, vascular bed, organ and/or other corporeal structures, while reducing inadvertent introduction or reflux substance to other vessels, vascular beds, organs, and/or other structures, including systemic introduction.

An apparatus for performing a medical procedure and, in particular, an aortic valvuloplasty, in a vessel for transmitting a flow of fluid. The apparatus comprises a shaft, an inflatable perfusion balloon supported by the shaft and including an internal passage for permitting the fluid flow in the vessel while the perfusion balloon is in an inflated condition, and a valve for controlling the fluid flow within the passage. The valve may be connected to the shaft, or may comprise an elongated tube partially connected to the balloon. The balloon may comprise a plurality of cells in a single cross-section, each cell including a neck, and the valve may be positioned in a space between the shaft and the necks for controlling the fluid flow within the passage. A connector may also be provided to control the position of the valve.