6 results about "Hemodialysis access" patented technology

An elastic dialysis stent comprises a central restrictor segment located between two tapered segments. The tapered segments are tapered from a larger diameter suitable for joining to tubular graft segments or attaching the stent in a graft or fistula, to the narrower diameter of the elastic central restrictor segment which provides a stenosis. The central restrictor is made of an elastic material which enables the stent to be radially expanded by a balloon catheter to a larger diameter for passage of endovascular devices through the stent for repair of blockages on the venous side of the stent. When the balloon catheter is deflated and removed, the elastic properties of the stent cause it to retract to its original stenotic configuration.

The invention discloses a long-term hemodialysis access device integrated with a free floating venous catheter. The long-term hemodialysis access device comprises a dialyzer body, an arterial blood drawing mechanism, a venous blood injection mechanism, a form adjusting mechanism and a skin heating mechanism. The dialyzer main body is provided with a blood inlet, a substance exchange cavity and a blood outlet, and the blood inlet, the substance exchange cavity and the blood outlet are communicated in sequence; the arterial blood drawing mechanism is mounted at the blood inlet, and the output end of the arterial blood drawing mechanism is communicated with the blood inlet; the venous blood injection mechanism is mounted at the blood outlet; the input end of the venous blood injection mechanism is communicated with the blood outlet; the form adjusting mechanism is mounted on the dialyzer main body; the number of the form adjusting mechanisms is two. The skin heating mechanism is detachably mounted on the dialyzer main body; the skin heating mechanism is used for thermally radiating human skin; by integrating the form adjusting mechanism and the skin heating mechanism, it is guaranteed that blood can float freely, meanwhile, the injection environment of the human skin is improved, and hemodialysis is improved.

An elastic dialysis stent comprises a central restrictor segment located between two tapered segments. The tapered segments are tapered from a larger diameter suitable for joining to tubular graft segments or attaching the stent in a graft or fistula, to the narrower diameter of the elastic central restrictor segment which provides a stenosis. The central restrictor is made of an elastic material which enables the stent to be radially expanded by a balloon catheter to a larger diameter for passage of endovascular devices through the stent for repair of blockages on the venous side of the stent. When the balloon catheter is deflated and removed, the elastic properties of the stent cause it to retract to its original stenotic configuration.

A vascular access guidance platform provides enhanced visualization and accuracy for medical procedures through an integrated extended reality system. The platform comprises an extended reality visualization system configured to display three-dimensional holograms overlaid on patient anatomy, a registration and tracking system for spatial alignment between virtual and physical anatomy, multiple imaging sensors including infrared cameras and ultrasound devices, and a processing system with coordinate transformation algorithms. The system captures anatomical imaging data, generates augmented representations of vascular anatomy, and aligns these representations with physical patient anatomy using registration techniques including optical markers, spatial mapping, and bony landmark registration. The platform maintains real-time tracking capabilities throughout procedures, accommodating patient movement and practitioner repositioning. Applications include intravenous therapy, hemodialysis access, and blood sampling procedures.

An electromagnetic radiation (EMR) delivery system for delivering EMR at wavelengths, intensities, exposures, and durations to locations inside and / or outside a patient's body in, on, and surrounding a tubular structure such as a tube, catheter, and / or a catheter extension to prevent, reduce, and / or eliminate infectious agents in, on, or surrounding the tubular structure. A smart light engine box generates the therapeutic EMR, controls treatments, and monitors the health of the system. A fiber optic disposable, introduced and positioned by an introducer assembly, makes at-home use of the EMR delivery system possible. Specific embodiments of the EMR delivery system for use with peritoneal dialysis catheters, dialysis accesses, and hemodialysis accesses are also disclosed.

A vascular access guidance platform (100) provides enhanced visualization and accuracy for medical procedures through an integrated extended reality system. The platform (100) comprises an extended reality visualization system (102) configured to display three-dimensional holograms overlaid on patient anatomy, a registration and tracking system (104) for spatial alignment between virtual and physical anatomy, multiple imaging sensors (110) including infrared cameras and ultrasound devices, and a processing system (106) with coordinate transformation algorithms. The system captures anatomical imaging data, generates augmented representations of vascular anatomy, and aligns these representations with physical patient anatomy using registration techniques including optical markers, spatial mapping, and bony landmark registration. The registration and tracking system (104) utilizes registration sensors (112) and registration targets (114) positioned at predetermined anatomical locations. The platform (100) maintains real-time tracking capabilities throughout procedures, accommodating patient movement and practitioner repositioning. Applications include intravenous therapy, hemodialysis access, and blood sampling procedures.