A medical device that delivers therapeutic agent to the tissue within the bodily passageway while simultaneously permitting flow of bodily fluids past the location of treatment. The medical device includes an inflatable balloon and optionally one or more balloon wall openings that are configured to allow fluid in the interior of the inflatable balloon to flow through the inflatable balloon when the inflatable balloon is pressurized by the fluid in the interior of the inflatable balloon. During the inflation of the inflatable balloon at the treatment site, the flow of blood through the blood vessel is maintained across the treatment site by use of one or more bypass passageways in the medical device.

Balloon catheter devoid of guidewire or guidewire lumen and having a proximal shaft with only a single continuous lumen. A coil assembly is mounted at its proximal end to the distal end of the proximal shaft defining an interface therebetween. Disposed about a distal section of the proximal shaft and a proximal section of the coil assembly is a sleeve. A balloon, having a vent hole, forms a proximal leg seal about an outer surface of a distal end of the sleeve and an opposite distal leg seal. The sleeve covers the interface and extends axially in a distal direction terminating underneath the proximal leg seal of the balloon. A distal section of the coil assembly at least partially coincides with the distal leg seal of the balloon. A wire member secured at a plurality of connection points along the coil assembly extends axially within the balloon.

In intervertebral operative spinal procedures, using separate or pre-attached spreader blocks to control the directional growth of a distracting balloon.

Methods, devices, systems of resuscitating a patient including accessing an arterial vessel positioning a catheter into the arterial vessel advancing the catheter through the arterial vessel to position it below a vessel supplying blood to a heart and a brain expanding an expandable portion of the catheter to prevent blood from flowing past the expanded portion and infusing a substance retrograde into the artery within the arterial section between the heart and the expanded portion of the catheter.

A double-balloon catheter device for gastrointestinal anastomosis. The double-balloon catheter device for gastrointestinal anastomosis includes a liquid injection assembly, a double-balloon assembly, and a supporting device (15) connecting the liquid injection assembly and the double-balloon assembly. The liquid injection assembly includes a first balloon liquid injection connection port (2), a guide wire connection port (3), and a second balloon liquid injection connection port (4). The double-balloon assembly includes a double-balloon catheter device (5), and includes a first balloon (6) and a second balloon (7) that can expand-and that are respectively disposed on the two ends of the double-balloon catheter device (5). The double-balloon catheter device (5) is provided with a first balloon liquid injection channel (51), a guide wire channel (52), and a second balloon liquid injection channel (53).

Methods, devices, systems of resuscitating a patient including accessing an arterial vessel positioning a catheter into the arterial vessel advancing the catheter through the arterial vessel to position it below a vessel supplying blood to a heart and a brain expanding an expandable portion of the catheter to prevent blood from flowing past the expanded portion and infusing a substance retrograde into the artery within the arterial section between the bean and the expanded portion of the catheter.

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.

In some examples, a catheter includes an elongated member including at least one balloon connected to the elongated member, the at least one balloon being configured to inflate to an expanded state. In the expanded state, the at least one balloon forms at least a portion of a cavity with a wall of a vessel of the patient. The catheter including at least one electrode carried by the elongated member and having at least one surface exposed to the cavity formed by the at least one balloon. The electrode is configured to connect to an energy source that is configured to deliver, via the electrode, an electrical signal to a fluid contained in the cavity and in contact with the electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.

Embodiments can provide an expandable nasogastric intubation assembly, comprising a tube subassembly and an expander subassembly, comprising an inflatable balloon comprising a proximal expander component section and a distal expander component section wherein the proximal expander component section is located between the proximal end of the intubation assembly and the distal expander component section; wherein the distal expander component section is located between the distal end of the intubation assembly and the proximal expander component section; wherein the inflatable balloon is coupled to the tube subassembly, the proximal expander component section is configured to be inflated from an injection of fluid into at least one first opening located in the second passageway, and the distal expander component section is configured to be inflated by the injection of fluid into at least one second opening located in the second passageway.

An airway catheter (AEC) includes a catheter lube having proximal and distal tube end faces in fluid communication with a tube lumen. The distal lube end face and a portion of the tube wall collectively form a distal tube end region. A plurality of side holes extend laterally through the tube wall. An inflatable cuff is secured to the outer tube wall surface with an inner cuff volume in fluid communication with the tube lumen via the side holes. A resistor plug has proximal and distal plug end faces in fluid communication with a plug lumen and is defined laterally by a plug wall. The resistor plug is maintained within at least a portion of the tube lumen in the distal tube end region with an outer plug wall surface being at least partially in compressive contact with the inner tube wall surface.