A covering state of a coating layer containing a silicone compound on an inner surface of hollow fiber membranes is evaluated by dissolving the silicone compound and a dyeing agent in an organic solvent and causing the coating solution to pass through the hollow fiber membranes. The covering state of the silicone compound or a crosslinked product is determined by observing a dyed state of a hollow fiber membrane end surface on a coating solution passing start side and a dyed state of a hollow fiber membrane end surface on a coating solution passing end side of the hollow fiber membrane on which the coating layer is formed.

A holder system capable of mounting at least one medical device component to a control console support includes a triplex holder arm configured to connect to and support at least one medical device component; a receiver or receiver arm assembly configured to connect to the triplex holder arm, wherein the receiver is attached to the control console support to mount the triplex holder arm and the at least one medical device component on the control console support; and a locking assembly configured to releasably connect the triplex holder arm to the receiver or receiver arm assembly.

Disclosed is a blood oxygenator. The blood oxygenator includes a blood inlet chamber, and a housing. A hollow cavity is arranged in the housing, and includes a heat exchange zone and a gas exchange zone. Multiple heat exchange filaments are arranged in the heat exchange zone. Multiple hollow fibrous membrane fibers are arranged in the gas exchange zone. The blood inlet chamber includes an inverted conical side wall and an end surface hermetically connected to an opening at one end of the inverted conical side wall, an opening at the other end of the inverted conical side wall is hermetically connected to one end of the housing, and the other end of the housing is hermetically connected with a cover body. The cover body is provided with a blood outlet, and the end surface is provided with a spiral liquid inlet pipe coaxial with the blood inlet chamber.

The present application provides a method and system for uninterrupted power supply switching for a pump driver. According to the electrical connection relationships among the devices in the system to which the method is applied, and the corresponding determination method of whether a control host switches normally, redundant power supply for the pump drive can be achieved. When one or more power supply devices supply power simultaneously, the types of all power supply devices can be fully identified, and during a power supply switching process, accurate determination and timely communication connection establishment with the pump drive can be achieved, avoiding abnormal alarms being triggered by the pump drive during or after the power supply switching process, thereby ensuring uninterrupted continuous operation of the pump drive.

An oxygenator system includes: a canister; a membrane in the canister to provide a gas transfer with blood; a blood inflow tube to deliver blood to the canister; and a blood outflow tube to deliver blood from the canister, wherein one or more of the blood inflow tube or the blood outflow tube includes a curved portion.

Certain embodiments of the invention are directed to methods of adjusting the concentration of one or more electrolytes in a patient's blood using a counter current electrolyte solution.

A method and system for performing transseptal extracorporeal membrane oxygenation is disclosed. The method may include puncturing a septum between the right atrium and the left atrium and advancing a catheter system through the puncture and into the aorta. A first portion of the catheter system can remove blood from the patient, in some examples near the inferior vena cava. A second portion can return oxygenated blood to the patient, through the transseptal puncture and into the aorta.

Aspects of the present disclosure generally relate to systems and methods for perfusion, and more specifically, for pulsatile blood perfusion based on a measured pressure waveform. One example method generally includes receiving, via a graphical user interface presented to a user, datapoints indicating a waveform; receiving one or more parameters associated with blood perfusion; generating an offset removed waveform based on the datapoints, the offset removed waveform having a physiological offset removed; converting the offset-removed waveform to a voltage waveform based on the one or more parameters; and operating, via the voltage waveform, a pump to provide blood in a perfusion system. The aspects described herein are applicable for any suitable perfusion environment, such as extracorporeal perfusion or isolated organ perfusion.

A system is described for the regional decoagulation of the blood in an extracorporeal circulation circuit comprising means for infusion of a solution of a citrate or citric acid on the main circuit, which are set upstream of the first filtration unit; means for infusion of a solution for electrolyte restoration on the main circuit, which are set downstream of the filtration unit and a secondary circuit for recirculation of the plasma water obtained by the filtration unit. The secondary circuit comprises: a first cartridge comprising an anion-exchange resin charged with chlorine ions; a second cartridge comprising a cation-exchange resin charged with sodium and potassium ions, which is set downstream of the first cartridge and means for removal of a first fraction of the plasma water obtained by the filtration unit.

Provided is an oxygenator capable of suppressing blood stagnation in the vicinity of a top portion of a housing. An oxygenator (1) includes a housing (10), a core (20), a hollow fiber membrane layer (30), a first blood chamber (40), a second blood chamber (50), a blood inflow port (21), and a blood outflow port (14), and in a side view, a straight line (L1) passing from a proximal end point (14P) of the blood outflow port through a center point (10P) of the housing intersects with a virtual center line (L2) of the housing.