A catheter includes a tubular body to be inserted into a living body. The tubular body has a lumen that is held in fluid communication with an injection port defined in a distal end of the tubular body and a suction port near a proximal end of the tubular body, and the suction port is closed when the injection port is open, and the injection port is closed when the suction port is open.

The present invention generally relates to a process suitable for extracorporeal lung support. The process comprises contacting blood with a dialysis liquid separated by a semipermeable membrane. Oxygen is introduced into blood and/or into the dialysis liquid prior to contacting blood and dialysis liquid being separated by the semipermeable membrane. The process is versatile and allows for blood oxygenation as well as removal of at least one undesired substance occurring in the blood, selected from carbon dioxide, bicarbonate and hydrogen cations, from blood. Thereby, the present invention takes advantage of the Haldane effect in the extracorporeal contacting step. The undesired substance can be efficiently transported across a semipermeable membrane to the dialysis liquid. In contrast to extracorporeal carbon dioxide removal methods of the prior art (ECCCbR), the present invention employs a versatile dialysis liquid that allows to adjust the pH and buffering capacity of the dialysis liquid, to add fluids to the dialysis liquid and/or to the blood and to remove substances from the blood in the extracorporeal circuit, depending on the conditions and needs. The present invention also provides regeneration and recycling of the dialysis liquid, and thus for its repeated use. The present invention is suitable for treating human or animal subjects suffering from lung failure or lung disorders.

Systems and methods for generating MRI images of the lungs and/or airways of a subject using a medical grade gas mixture comprises between about 20-79% inert perfluorinated gas and oxygen gas. The images are generated using acquired .sup.19F magnetic resonance image (MRI) signal data associated with the perfluorinated gas and oxygen mixture.

This invention relates to a process through which intravenous fluids, blood, or artificial blood containing high-levels of mechanically-injected dissolved oxygen can be used to maintain appropriate oxygen levels in the venous blood and thereby provide short-term oxygenation support for compromised or trauma patients. In one aspect, there is provided a system and process for oxygenating a biological fluid for use in a compromised or a trauma subject in need of oxygenation support to maintain appropriate oxygen levels in the subject, the process comprising: supplying oxygen gas from an oxygen source; and dissolving an amount of the supplied oxygen into a biological fluid to obtain an oxygen enriched biological fluid.

Embodiments of the invention provide apparatus, systems and method for introducing fluids into a body cavity for treatment. One embodiment provides an apparatus for treating a patient including an access device for insertion into the peritoneal cavity of the patient including an infusion member in a lumen of the access device. An oxygenated solution may be infused and removed into and out of the cavity via the infusion member.

Disclosed are an in-vitro cardiopulmonary combined perfusion system and perfusion method. The in-vitro cardiopulmonary combined perfusion system includes an organ cabin, a circulation cabin, a control cabin, a simple breathing cabin, a display and control panel, and a base. The organ cabin is connected with the circulation cabin, the control cabin and the simple breathing cabin. The control cabin is connected with the display and control panel. The organ cabin, the circulation cabin, the control cabin, the simple breathing cabin, and the display and control panel are mounted on the base.

Systems and methods for generating MRI images of the lungs and/or airways of a subject using a medical grade gas mixture comprises between about 20-79% inert perfluorinated gas and oxygen gas. The images are generated using acquired .sup.19F magnetic resonance image (MRI) signal data associated with the perfluorinated gas and oxygen mixture.

Methods, systems, and device for oxygenated ocular region treatment are provided. For example, a method of ocular region treatment is provided in accordance with various embodiments where an oxygenated material may be applied to an ocular region. The ocular region may include at least corneal tissue, limbal tissue, or ocular adnexal tissue. The oxygenated material may include at least an oxygenated emulsion, an oxygenated ointment, or an oxygenated liquid, which may be supersaturated in some cases. The oxygenated material may include perfluorocarbon, such as perfluorodecalin. The oxygenated material may include at least an antibiotic or an anesthetic in some cases. Some embodiments include an ocular region treatment system or device that may include an eye cup configured to surround an ocular region. A dispenser may be configured to couple with the eye cup and to dispense an oxygenated material to the ocular region may be provided.

Disclosed are an in-vitro cardiopulmonary combined perfusion system and perfusion method. The in-vitro cardiopulmonary combined perfusion system includes an organ cabin, a circulation cabin, a control cabin, a simple breathing cabin, a display and control panel, and a base. The organ cabin is connected with the circulation cabin, the control cabin and the simple breathing cabin. The control cabin is connected with the display and control panel. The organ cabin, the circulation cabin, the control cabin, the simple breathing cabin, and the display and control panel are mounted on the base.

Methods and systems for bidirectional priming of a blood circuit while a catheter is connected to the circuit that delivers gas-enriched blood to a patient. The system primes the circuit while the catheter is connected to the circuit by controlling a first flow control mechanism to close to prevent blood flow through the draw line to a catheter and causes a pump to circulate blood in a first direction through a mixing chamber and/or through a bubble trap that removes air bubbles from the circuit. The system controls a second flow control mechanism to close to prevent blood flow in a return line to the catheter while causing the first flow control mechanism to open after the second flow control mechanism is closed and while causing the pump to circulate the blood in a second, opposite direction through the mixing chamber that removes air bubbles from the circuit.