The invention relates to a method for filling an inflatable catheter balloon of a device for transanally introducing an infusion into the rectum or colon of a patient by means of a filling device, wherein a fill volume or a filling pressure prevailing in the catheter balloon is increased in two or more steps until there occurs a gradual, user-controllable, pneumatically initiated expansion of portions of the bowel wall, thus triggering a coordinated defecation reflex, wherein the timing and intensity of the triggering stimulus can be determined to the greatest possible extent by the user.

A fluid pressure gun device for a balloon catheter includes a tubular cavity, a fluid tube, a pressure monitoring device, a plunger, a screw structure, a cover and a detent structure, wherein inside the body of the cavity forms a chamber. The plunger is disposed in the chamber, and the inside of the casing forms a chamber. The screwing structure includes two screwing blocks, and each screwing block is oppositely arranged in the chamber according to the plunger as the center. Each of the screw blocks is screwed with the plunger, and a plurality of springs respectively lean against the screw block and the cover. The detent structure is used to depart the screw blocks from the plunger. The plunger is supported by each screw block at least on two opposite sides, and making it a highly reliable combination of the plunger and each screw block.

A system to be used inside a dialysis unit for dilating obstructed blood vessel, comprises a catheter, a device, a remote-control box, supportive components and connection cables. A catheter comprises an elongated portion, a proximal end and a distal end, extended longitudinally. A distal end of a catheter has a convectively heating tip with a heat generating element and an inflatable balloon. A device has a radiofrequency current generator to supply and control a heating process of a heat generating element of a catheter tip. A remote-control box comprises a valve assembly, a heat activation switch and a balloon inflation switch to facilitate a treatment process.

A method includes, in a processor, receiving signals from (i) a first position sensor disposed on a shaft of a catheter, and (ii) a second position sensor disposed on a distal end of a sheath of the catheter. Based on the signals received from the first position sensor and the second position sensor, an event is detected in which an expandable distal-end assembly of the catheter is being withdrawn into the sheath while still at least partially expanded. A responsive action is initiated in response to detecting the event.

Methods for performing endovascular procedures are described herein. The methods may comprise advancing an expandable member of a blood flow control device to a target location in a blood vessel of a patient, and rotating a circular gear positioned at least partially within a housing of a controller via the controller communicably coupled to the blood flow control device. Rotating the circular gear may translate a linear gear of a syringe pump fluidly coupled to the expandable member thereby adjusting a volume of the expandable member. Various blood flow control devices, control systems, and fluid delivery systems are also described herein. The fluid delivery systems may include a pump configured for manual or automated delivery of fluids, or configured to switch between automated and manual modes of delivery. The pump may be a syringe pump that utilizes a rack and pinion system, a motor, and a sensor to track the position and/or movement of a component of the syringe pump during fluid transfer. Alternatively, the pump may be a pressure differential pump that includes a flow restrictor and a pressure sensor that controls delivery of fluid from a fluid reservoir. Systems and methods including the syringe and pressure differential pumps are also described.

An example connector for a balloon catheter assembly according to an example of the present disclosure includes, among other possible things, an inlet branch, a first outlet branch in fluid communication with the inlet branch and configured to be connected to a first balloon, a second outlet branch in fluid communication with the inlet branch and configured to be connected to a second balloon, and a valve integrated the first outlet branch. The valve has a first position and a second position. The valve is configured to limit fluid flow through the valve when in the first position. Another example connector for a balloon catheter assembly and a method of inflating a balloon catheter assembly are also disclosed.

An apparatus (10) includes an endovascular device (12) connected to a configured-to-be-powered syringe assembly (30). That configured-to-be-powered syringe assembly includes a reusable drive unit (36) and a disposable syringe unit (34).

Some systems and methods for operating a vessel occlusion catheter may include a control and inflation device to control the filling of the balloon in such a manner that the vessel wall will not be overstressed while the safe occlusion of the blood vessel is achieved.

A method includes, in a processor, receiving signals from (i) a first position sensor disposed on a shaft of a catheter, and (ii) a second position sensor disposed on a distal end of a sheath of the catheter. Based on the signals received from the first position sensor and the second position sensor, an event is detected in which an expandable distal-end assembly of the catheter is being withdrawn into the sheath while still at least partially expanded. A responsive action is initiated in response to detecting the event.

The invention relates to devices (1) for draining or closing a natural or artificial bladder outlet by means of a balloon body (3) made of preferably micro-scale thin-walled Polyurethane, which has a vesical anchor, is transurethrally sealing and is extended into the urethra or through the urethra. According to the invention, the balloon body is seated on a shaft body (2) supporting the balloon, and the filling of the balloon body is preferably done with air.