A system and related method are provided for draining cerebrospinal fluid from a bodily cavity of a patient, such as a ventricle in the brain in one application. The system includes a reservoir which may be a collapsible container configured for fluidic connection to a shunt located in the bodily cavity. The collapsible container may be an elastically deformable bladder in one embodiment. A pump is fluidly connected to the collapsible container and draws cerebrospinal fluid therefrom. A programmable controller directs the pump to repeatedly activate and deactivate at a predetermined time interval. A plurality of sensors may be provided which are communicably coupled to the controller for monitoring pump motor current draw, tension in the resilient body of the container, pressure, and orientation of the patient. The controller is configurable to deactivate the pump when abnormal operating conditions are detected by the sensors.

A drug delivery device includes a blunt cannula and a reservoir. The blunt cannula has a cylindrical wall that defines an axial passage between a first end and a second end of the blunt cannula. The wall has at least a first tapered region at the first end to define an opening in fluid communication with the axial passage and adapted at the first end to resist interruption of fluid flow through the axial passage and out of the first end of the blunt cannula. The reservoir is connected to the second end of the blunt cannula.

A medical catheter assembly includes a catheter tip coupled to a distal end of an elongate catheter member and is symmetric about a plane defined by a septum of the elongate catheter member. The catheter tip defines first and second lumens, and the catheter tip defines first and second openings in the distal portion of the catheter tip. Each opening of the catheter tip is defined by a respective side surface of the catheter tip. Each opening is in fluid communication with a respective one of the first and second lumens of the catheter tip and with a respective one of a pair of lumens defined by the elongate catheter member. The distance between upper and lower surfaces of the catheter tip decreases from a distal end of the proximal portion toward a closed distal end of the catheter tip.

A cannula for the circulation of a fluid in an artery, includes a main lumen conveying a volume of fluid towards a first distal end; an accessory lumen including at least one inner portion arranged inside the main lumen, including: a proximal end situated downstream from the proximal end of the main lumen so as to capture a fraction of the flow of fluid entering the main lumen; a bent portion modifying the direction of flow of the fluid flow captured by the accessory lumen with respect to the direction of flow of the fluid emerging from the first end; a second distal end situated upstream from the first distal end of the main lumen, emerging on a side opening of the cannula so as to direct the captured fraction of liquid in the modified direction of flow.

Devices used to deliver a substance within a patient's body are disclosed. The devices may include a microcatheter configured to deliver the substance to a targeted site. The microcatheter may include an expandable member to temporarily restrict blood flow in a vessel, a flow restriction member to restrict flow of material out a distal end of the microcatheter, and a port disposed proximal of the expandable member.

A laser atherectomy device includes a light delivery catheter equipped with sensors for monitoring physical characteristics at a laser application site. An integrated control unit utilizing data from said sensors is provided to optimally adjust laser energy parameters and to provide for safe and efficacious ablation of the blood vessel occlusion.

The present disclosure discloses a nephrostomy tube and a nephrostomy tube with curved drainage. The nephrostomy tube with curved drainage includes a bending head, a balloon element, and an elongated main body integrally connected with each other, wherein the nephrostomy tube with curved drainage has an guiding channel adapted for a guiding member to penetrate through, wherein the bending head has a first inner channel and at least two drainage bending channels located on the outer side of the first inner channel, wherein the balloon element has an air chamber and a second inner channel, wherein the at least two drainage bending channels are communicated with the second inner channel, wherein the elongated main body has a third inner channel communicated with the second inner channel of the balloon element, wherein the first inner channel, the second inner channel and the third inner channel from the guiding channel.

A catheter devices/systems and methods therefrom are described herein for treating acute kidney injury, especially the contrast-induced acute kidney injury wherein the devices prevent the contrast dyes from entering into kidney and/or facilitate blood flow of kidney by said catheter system.

The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to devices and methods to convey fluid delivered from a delivery catheter. Exemplary catheters are disclosed which include fluid distribution devices for delivery of fluid and delivery of pass-through medical instruments, such as cryodecompression tubes, within body lumens.

Catheters are described that have improved flow characteristics that may be particularly helpful when delivering embolic agents within a blood vessel. One catheter includes a fluid flow modifier that is configured to create laminar fluid flow out of a distal end of the catheter to help reduce turbulence and achieve predictable fluid movement. Another catheter includes scavenging ports that are configured to suction in embolic agents that have refluxed proximally back from a distal end of the catheter.