A flush device including: a first housing provided with a first flow path; a second housing provided with a second flow path, the second housing being coupled to the first housing; a flow control device including a protrusion and a through hole connecting the first flow path to the second flow path in fluid communication; and an elastic member provided around the base of the flow control device to seal off a space between the first and the second flow paths. The elastic member is deformed to further connect the first and second flow paths in fluid communication. The first housing has an inner periphery provided with fitting receiving portions each being fitted to each of the fitting projections of the protrusion. According to this structure, the flush device can discharge a chemical liquid at a flow rate close to a defined amount.

A connection system for components through which a fluid is passed comprises an actuator and a main housing. The actuator has a cylindrical portion with an outer face. A handgrip is arranged at a first end of the cylindrical portion. In the region of a second end the cylindrical portion has a cavity, which is open towards the second end, and in the region of the second end there are arranged at least two gate-like passage openings for fluid connection. The main housing has a main body and at least two fluid passages arranged laterally on the main body. The main body has a cavity with an open first end, a base in the region of a closed second end, and at least two laterally arranged openings. A substantially cylindrical protrusion is arranged on the base of the main body and a peripheral shaping is arranged in the region of the second end of the actuator, which shaping at least partially surrounds the protrusion and thus forms a counter bearing for the second end of the actuator.

A system for controlled delivery of a medical fluid may include an elastomeric pump, a valve member fluidly coupled to the elastomeric pump at one side and a catheter at an opposite side for delivering the medical fluid to a patient, and tubing fluidly coupling the elastomeric pump and the valve member. The elastomeric pump may include an elastomeric membrane and a shell surrounding the elastomeric membrane. The pressure of the medical fluid may be greater than a pressure of the vein to keep the vein open. The valve member may be movable between an initial closed position, a fully open position where the medical fluid is delivered to the vein of the patient at a predetermined fluid flow rate, and at least one intermediate open flow position where the medical fluid is delivered to the vein of the patient at a flow rate below the predetermined fluid flow rate.

A number of variations may include a sterile kit that may include a tray constructed and arranged to hold the necessary items to access an Ommaya reservoir and the tray may define a plurality of other resources or indentations constructed and arranged to seat, hold, or house additional components of the sterile kit. The sterile kit may additionally include a paper towel, a fenestrated drape, a plurality of sponge applicators, at least one pouch of povidone-iodine, at least one retractable winged butterfly needle, at least one luer lock syringe, a 3-way stopcock, a plurality of collection vials with tops which may be screwed on to prevent the contents thereof from leaking or escaping, sterile pads, bandages including adhesive bandages, and other components.

Intravascular delivery system is designed for a safe and efficient access to secondary and tertiary vascular structures, such as the branches of the coronary sinus, to enhance the delivery and deployment of various catheters, such as, for example, pacemaker electrical leads. The over-the-wire system features a straight, or alternatively shaped, micro-catheter distal tip of an inner catheter that seamlessly cooperates with a peel-away reinforced outer catheter. The inner catheter and the peel-away reinforced outer catheter are advanced in their engaged mode of operation towards (or beyond) the target site. Subsequently, the inner and outer catheters are disengaged, and the inner catheter is removed from the outer catheter. A pacemaker lead may be advanced over the wire inside the outer catheter to the target site for deployment. Subsequently, the outer catheter is easily split and may be rapidly removed from the blood vessel.

A guiding sheath has a braided layer for improved deflection characteristics and ring electrodes for electrical sensing, mapping and visualization, wherein lead wires for the ring electrodes are passed through lumened tubing position under the braided layer in a proximal portion of the guiding sheath shaft and above the braided layer in a distal portion of the guiding sheath shaft. Moreover, the hemostatic valve includes an improved friction ring with air vents to reduce the risk of air being introduced into the valve.

In general, medical sheath systems that include a curved support sheath are described. In one embodiment, the support sheath includes a curved tube includes a distal portion fixed in an orientation perpendicular to the proximal end during advancement of an interventional tool through the support sheath.

A medical elongated body that is capable of improving convenience during use by a surgeon, and capable of preventing peeling, from a catheter main body, of a drug portion (a hydrophilic coating) containing metal ions and a drug when disposed on a wound site of a patient. An introducer sheath includes a tubular sheath configured to be percutaneously inserted into a blood vessel, and a hub connected to a proximal portion of the tubular sheath, in which the tubular sheath includes a first region and a second region located on a proximal side relative to the first region, the first region has a first hydrophilic coating having lubricity, the second region includes a groove portion extending from a distal side of the tubular sheath toward a proximal side of the tubular sheath, the groove portion having a second hydrophilic coating containing at least one of metal ions and a drug.

A surgical access port or trocar is provided. The trocar has a trocar seal housing and a trocar cannula with an optical obturator insertable through the trocar seal housing and the trocar cannula. The trocar is configured to access a body cavity, to maintain positive pressure and to prevent loss of surgical insufflation gas used in laparoscopic procedures. The trocar seal housing can be releasably attached to the trocar cannula. The trocar seal housing may also have a shield and/or alignment channel that provide protection or assist in operation of instrument and zero seals housed in the trocar seal housing.

a dilatable balloon catheter, comprising: a guide wire inserted and disposed in the inside of the catheter, an operation portion is fixedly connected to one end of the catheter, a balloon is disposed at the outer side of the catheter remote from the operation portion, the lumen of the catheter and the inner cavity of the balloon are connected by a communication structure provided on the catheter, the guide wire includes a first guide wire and a second guide wire which are separated from each other, the rear end of the first guide wire is connected to insertion-extraction structure in the rear end of the operation portion, the second guide wire is fixed to the inside of the catheter by a fixing process. The guide wire of the dilatable balloon catheter and the liquid injection lumen can share the same lumen, greatly reducing the diameter of the catheter in the present invention, so that the dilatable balloon catheter can be inserted into a narrow duct or lumen that needs to be expanded in human body through an device channel of an endoscope, and realize visualization operation.