Integrated blood handling system having active gas removal system and methods of use
First Claim
Patent Images
1. Apparatus for oxygenating and pumping blood comprising:
- a venous line;
an arterial line;
a gas removal system coupled to the venous line, the gas removal system comprising a housing having a gas collection plenum and a gas removal port and a filter element disposed within the housing;
a blood oxygenation element having a blood outlet coupled to the arterial line;
a pump coupled in fluid communication with the blood oxygenation element, the pump coupled directly to the gas removal system to induce a negative pressure in the gas removal system and the venous line;
a sensor disposed on the gas collection plenum to monitor a level of gas or blood in the gas collection plenum;
a suction line coupled to the gas removal port;
a valve operatively associated with the suction line;
a microprocessor-based controller coupled to the sensor to continuously monitor the level of gas or blood in the gas collection plenum, the controller programmed to selectively actuate the valve to remove gas accumulated in the gas collection plenum; and
a control panel coupled to the controller, the control panel configured to accept input commands that control operation of the gas removal system.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods for pumping and oxygenating blood are provided that include a gas removal system. An integrated blood processing unit is provided in which a gas removal/blood filter, pump and blood oxygenation element are mounted within a common housing. The gas removal system includes a sensor mounted on the housing to sense the presence of gas, and a valve is operably coupled to the sensor to evacuate gas from the system when the sensor detects an accumulation of gas.
115 Citations
21 Claims
-
1. Apparatus for oxygenating and pumping blood comprising:
-
a venous line;
an arterial line;
a gas removal system coupled to the venous line, the gas removal system comprising a housing having a gas collection plenum and a gas removal port and a filter element disposed within the housing;
a blood oxygenation element having a blood outlet coupled to the arterial line;
a pump coupled in fluid communication with the blood oxygenation element, the pump coupled directly to the gas removal system to induce a negative pressure in the gas removal system and the venous line;
a sensor disposed on the gas collection plenum to monitor a level of gas or blood in the gas collection plenum;
a suction line coupled to the gas removal port;
a valve operatively associated with the suction line;
a microprocessor-based controller coupled to the sensor to continuously monitor the level of gas or blood in the gas collection plenum, the controller programmed to selectively actuate the valve to remove gas accumulated in the gas collection plenum; and
a control panel coupled to the controller, the control panel configured to accept input commands that control operation of the gas removal system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. Apparatus for oxygenating and pumping blood comprising:
-
a venous line;
an arterial line; and
a blood circuit coupled between the venous line and the arterial line, the blood circuit comprising a gas removal system, a pump and an oxygenator coupled together in a fixed, predetermined arrangement, wherein the pump is coupled in fluid communication between the oxygenator and the gas removal system to induce a negative pressure in the gas removal system and the venous line; and
wherein the gas removal system is coupled to the venous line and comprises;
a housing having a gas collection plenum and a gas removal port, a sensor disposed on the housing to monitor a level of gas or blood in the gas collection plenum;
a suction line coupled to the gas removal port;
a valve operatively associated with the suction line;
a microprocessor-based controller coupled to the sensor to continuously monitor the level of gas or blood in the gas collection plenum, the controller programmed to selectively actuate the valve to remove gas accumulated in the gas collection plenum; and
a control panel coupled to the controller, the control panel configured to accept input commands that control operation of the gas removal system. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification