Patent classifications
A61M1/1698
Systems and methods for treating blood
According to some embodiments, a system may treat blood outside the body of a patient. The system may include one or more pumps configured to pump blood in a fluid flow path at a collective rate over 5 liters per minute. The system may include one or more heat exchangers operable to heat at least a portion of the blood to a temperature of at least 42 degrees Celsius and to allow the blood to cool one or more degrees following heating. The system may include one or more convection dialysis modules configured to perform convection dialysis on at least a portion of the blood at least after the one or more heat exchangers allow the blood to cool one or more degrees.
EXTRACORPOREAL CIRCULATION MANAGEMENT DEVICE, EXTRACORPOREAL CIRCULATION DEVICE, AND EXTRACORPOREAL CIRCULATION MANAGEMENT PROGRAM
An extracorporeal circulation management device 10 displays an expected flow rate of blood flowing inside a circulation circuit 1R and an actual flow rate on a display unit 16, together with a standard pressure calculated based on the expected flow rate by referring to standard information representing a relation between the blood flow rate and a pressure loss occurring in each of devices 2, 5, and 6 provided in the circulation circuit 1R and stored in a storage unit, and an actual pressure related to each of the devices 2, 5, and 6, which is calculated based on an actual pressure measured by each of pressure measurement units 21, 22, and 23 as an actually measured value of a pressure of the blood flowing inside the circulation circuit 1R and the actual flow rate.
OXYGENATOR
An oxygenator includes: a housing; a bubble-removing hollow fiber membrane layer removing a bubble; a gas-exchanging hollow fiber membrane layer exchanging a gas with blood; and a discharge port to discharge the bubble removed by the bubble-removing hollow fiber membrane layer to the outside of the housing. The oxygenator further includes a gas permeable portion that is arranged between the discharge port and an end portion of the bubble-removing hollow fiber membrane layer, is formed by a member having gas permeability, and allows passage of the bubble removed by the bubble-removing hollow fiber membrane layer without allowing passage of plasma leaking through the bubble-removing hollow fiber membrane layer. A plasma capture chamber that captures the plasma leaking through the bubble-removing hollow fiber membrane layer is formed between the end portion of the bubble-removing hollow fiber membrane layer and the gas permeable portion.
Distal Flow Arterial Cannula with Expandable Positioning Balloon
A cannula includes a tube having a proximal end, a distal end, and a tubular sidewall extending between the proximal end and the distal end. The cannula further includes an extendable member provided on a portion of the sidewall. The extendable member is configured to extend radially outward from the sidewall. The sidewall defines an aperture located between the proximal end and the distal end of the main tube.
Dual Lumen Cannula with Expandable Lumen
A dual lumen drainage cannula configured for use in a VA ECMO system includes a first drainage tube having a proximal end, a distal end, and at least one aperture in at least one wall of the first drainage tube proximate to the distal end of the first drainage tube, and a second drainage tube having a proximal end, a distal end, and at least one aperture in at least one wall of the second drainage tube proximate to the distal end of the second drainage tube. The first drainage tube passes through the second drainage tube. The dual lumen drainage cannula also includes a sleeve positioned adjacent to an interior wall of the second drainage tube. The sleeve is formed of a flexible material so as to be expandable and collapsible within the second drainage tube.
METHODS AND SYSTEMS FOR REDUCING ELECTROCARDIOGRAM ARTIFACTS
Methods and systems for reducing electrocardiogram artifacts. In some examples, a system for electrocardiogram monitoring of a patient includes an electrocardiogram receiver configured for receiving one or more signals from one or more electrodes placed on the patient. The system includes a filter configured for filtering the one or more signals to reduce electromagnetic interference produced by an electromechanical support device of the patient, resulting in a filtered signal. The system includes an electrocardiogram display configured for displaying the filtered signal.
AUTOMATED FLUID INFUSION CONTROL FOR CIRCULATORY SUPPORT AND ECMO SYSTEMS
The present disclosure provides systems for controlling infusion of one or more supplements into blood received from a patient. The systems may include at least one extracorporeal circulatory support system including a pump, fluid conduits, and at least one sensor configured to measure one or more parameters of the blood. The system also may include a fluid flow regulator coupled to the extracorporeal circulatory support system; and a processor, a memory, and associated circuitry communicatively coupled to the at least one sensor and the at least one fluid flow regulator. The system receives measurement signals corresponding to parameters of blood from the at least one sensor and determines one or more target values for the parameters of blood based on a patient profile and/or the measurements. The system may control the fluid flow regulator to cause an infusion of at least one supplemental fluid from a supplemental fluid source into the blood.
ADJUSTABLE CANNULATION ASSEMBLY AND METHODS THEREOF
A cannulation coupler has a primary branch comprising a retaining feature. The cannulation coupler also has a side inflow branch in communication with the primary branch. The cannulation coupler further has an outflow branch in communication with the primary branch and in communication with the side inflow branch. An adjustable cannulation assembly is also disclosed, having a cannulation coupler, an outer cannula, and an inner cannula. The cannulation coupler has 1) a primary branch comprising a retaining feature, 2) a side inflow branch in communication with the primary branch, and 3) an outflow branch in communication with the primary branch and in communication with the side inflow branch. The outer cannula is coupled to the primary branch. The inner cannula is coupled to the side inflow branch, wherein: 1) the inner cannula also passes through the primary branch; and 2) the inner cannula is coaxially slidable within the outer cannula.
DUAL LUMEN EXTRACORPOREAL MEMBRANE OXYGENATION CATHETER WITH SINGLE ENTRY PORT BYPASSING THE RIGHT HEART AND LUNGS
The invention pertains to a medical device: an ECMO (extracorporeal membrane oxygenation) catheter which can be used during right heart and lung failure. It pertains to a dual lumen catheter with a single port of entry which when in place bypasses the right heart and lungs while completing the veno-arterial circuit.
Apparatus and method for rapidly cooling or heating the body temperature of a patient
An extracorporeal blood cooling or heating circuit includes an intravenous catheter for withdrawing a patient's blood coupled to a combined pump/heat exchanger device. One or more sensors are provided upstream and/or downstream of the pump/heat exchanger device for measuring pressure, temperature, fluid flow, blood oxygenation, and other parameters. A controller is operatively coupled to the pump/heat exchanger device and the one or more sensors to control the speed of the pump inside the pump/heat exchanger device and regulate the blood temperature by controlling the operation of the heat exchanger. The combined pump/heat exchanger device includes a housing having at least one inlet and at least one outlet, a pump portion defining a blood circuit inside the housing, and a heat exchanger portion contained within the housing for selectively heating or cooling the blood.