Rapid venous infusion system

Claim 1

A system for venous infusion of a physiologic fluid, such as blood, into a patient at a flow rate of at least one liter per minute comprising in combination: a. a reservoir for the physiologic fluid having an input port for receiving the physiologic fluid and an outlet port for dispensing the physiologic fluid; b. a container containing physiologic fluid not obtained directly from the patient to be furnished to the reservoir; c. a rollerhead occlusive pump or a centrifugal pump for propelling the physiologic fluid through the system at a flow rate of at least about one liter per minute; d. a heat exchanger with an interrelated heating/cooling unit; e. a micropore filter having a pore size of 40 microns or less; f. a pressure sensor; g. an air bubble sensor with an associated cut-off mechanism; h. one or more intravenous cannula of a relatively large diameter; i. flexible conduit means connecting the container to the reservoir, the reservoir to the infusion pump, the infusion pump to the heat exchanger, the heat exchanger to the micropore filter, the micropore filter to the reservoir and the micropore filter to the air bubble sensor and associated cut-off mechanism, and terminating at the intravenous cannula; j. means in said system for sensing the temperature, flow rate and total volume of the physiologic fluid to be infused; and k. means in said system for controlling the temperature, flow rate, pressure and total volume of the physiologic fluid to be infused.

Claim 2

A system for venous infusion of a physiologic fluid, such as blood, into a patient at a flow rate of at least one liter per minute comprising in combination: a. a reservoir for the physiologic fluid having an input port for receiving the physiologic fluid and an outlet port for dispensing the physiologic fluid; b. a container containing physiologic fluid not obtained directly from the patient to be furnished to the reservoir; c. a rollerhead occlusive pump or a centrifugal pump for propelling the physiologic fluid through the system at a flow rate of at least about one liter per minute; d. a heat exchanger with an interrelated heating/cooling unit; e. a micropore filter having a pore size of 40 microns or less; f. a pressure sensor; g. an air bubble sensor with an associated cut-off mechanism; h. one or more intravenous cannula of a relatively large diameter; i. flexible conduit means connecting the container to the reservoir, the reservoir to the infusion pump, the infusion pump to the heat exchanger, the heat exchanger to the micropore filter, the micropore filter to the reservoir and the micropore filter to the air bubble sensor and associated cut-off mechanism, and terminating at the intravenous cannula; j. means in said system for sensing the temperature, flow rate and total volume of the physiologic fluid to be infused; and k. means in said system for controlling the temperature, flow rate, pressure and total volume of the physiologic fluid to be infused.

Claim 4

A method for rapid infusion of a physiologic fluid, such as blood, into the venous system of a patient, comprising the steps of: a. providing a reservoir of a physiologic fluid to be infused into a patient; b. propelling the physiologic fluid from the reservoir by an infusion pump through a plurality of intervening steps into the venous system of the patient at a flow rate of at least about one liter per minute; c. controlling the temperature of the physiologic fluid propelled by the infusion pump; d. filtering the physiologic fluid to remove materials which could prove to be occlusive in the cardiovascular system of the patient; e. detecting any air bubbles present in the physiologic fluid and interrupting the flow of the physiologic fluid being infused into the patient upon detection of any such air bubbles; and f. monitoring the fluid pressure of the physiologic fluid being infused into the patient to lessen the possibility of rupture in either the venous system of the patient or in the apparatus delivering the physiologic fluid to the patient.

Claim 5

A method for rapid infusion of a physiologic fluid, such as blood, into the venous system of a patient, comprising the steps of: a. providing a reservoir of a physiologic fluid to be infused into a patient; b. propelling the physiologic fluid from the reservoir by an infusion pump through a plurality of intervening steps into the venous system of the patient at a flow rate of at least about one liter per minute; c. controlling the temperature of the physiologic fluid propelled by the infusion pump; d. filtering the physiologic fluid to remove materials which could prove to be occlusive in the cardiovascular system of the patient; e. detecting any air bubbles present in the physiologic fluid and interrupting the flow of the physiologic fluid being infused into the patient upon detection of any such air bubbles; and f. monitoring the fluid pressure of the physiologic fluid being infused into the patient to lessen the possibility of rupture in either the venous system of the patient or in the apparatus delivering the physiologic fluid to the patient.

Claim 6

A system for rapid venous infusion of a physiologic fluid such as blood into a patient a flow rate of at least about one liter per minute, consisting essentially of: a. a reservoir for the physiologic fluid having an inlet port for receiving the physiologic fluid and an outlet port for dispensing the physiologic fluid; b. infusion pumping means for propelling the physiologic fluid through the system at a flow rate of at least one liter per minute; c. means for controlling the temperature of the physiologic fluid; d. means for filtering occlusive materials from the physiologic fluid; e. means for sensing the pressure of the physiologic fluid; f. means for infusing the physiologic fluid into the venous system of the patient; and g. connective means for conveying physiologic fluid from the reservoir to and from each of the other components of the system to the means for infusing the physiologic fluid into the venous system of the patient.

Claim 7

A system for rapid venous infusion of a physiologic fluid such as blood into a patient a flow rate of at least about one liter per minute, consisting essentially of: a. a reservoir for the physiologic fluid having an inlet port for receiving the physiologic fluid and an outlet port for dispensing the physiologic fluid; b. infusion pumping means for propelling the physiologic fluid through the system at a flow rate of at least one liter per minute; c. means for controlling the temperature of the physiologic fluid; d. means for filtering occlusive materials from the physiologic fluid; e. means for sensing the pressure of the physiologic fluid; f. means for infusing the physiologic fluid into the venous system of the patient; and g. connective means for conveying physiologic fluid from the reservoir to and from each of the other components of the system to the means for infusing the physiologic fluid into the venous system of the patient.

Claim 9

A system for rapid venous infusion of a physiologic fluid, such as blood, into a patient at flow rate of at least about one liter per minute, consisting essentially of: a. a reservoir for the physiologic fluid having a volume capacity of two to five liters and having an inlet port for receiving the physiologic fluid and an outlet port for dispensing the physiologic fluid; b. a roller head occlusive pump or centrifugal pump for propelling the physiologic fluid through the system at a flow rate of least about one liter per minute; c. a heat exchanger with an interrelated heating/cooling unit; d. a micropore filter having a pour size of 40 microns or less; e. a pressure sensor; f. an air bubble sensor with an associated cut-off mechanism; g. one or more intravenous cannula of a relatively large diameter; and h. flexible conduit means connecting the components in combination to convey the physiologic fluid from the reservoir to and from each of the other components of the system to the cannula.

Claim 10

A system for rapid venous infusion of a physiologic fluid, such as blood, into a patient at flow rate of at least about one liter per minute, consisting essentially of: a. a reservoir for the physiologic fluid having a volume capacity of two to five liters and having an inlet port for receiving the physiologic fluid and an outlet port for dispensing the physiologic fluid; b. a roller head occlusive pump or centrifugal pump for propelling the physiologic fluid through the system at a flow rate of least about one liter per minute; c. a heat exchanger with an interrelated heating/cooling unit; d. a micropore filter having a pour size of 40 microns or less; e. a pressure sensor; f. an air bubble sensor with an associated cut-off mechanism; g. one or more intravenous cannula of a relatively large diameter; and h. flexible conduit means connecting the components in combination to convey the physiologic fluid from the reservoir to and from each of the other components of the system to the cannula.

Claim 11

A system for venous infusion of a physiologic fluid, such as blood, into a patient at a flow rate of at least one liter per minute consisting essentially of: a. a reservoir for the physiologic fluid having an input port for receiving the physiologic fluid and an outlet port for dispensing the physiologic fluid; b. a rollerhead occlusive pump or a centrifugal pump for propelling the physiologic fluid through the system at a flow rate of at least about one liter per minute; c. a heat exchanger with an interrelated heating/cooling unit; d. a micropore filter having a pore size of 40 microns or less; e. a pressure sensor; f. an air bubble sensor with an associated cut-off mechanism; g. one or more intravenous cannula of a relatively large diameter; h. flexible conduit means connecting the reservoir to the infusion pump, the infusion pump to the heat exchanger, the heat exchanger to the micropore filter, the micropore filter to the reservoir and the micropore filter to the air bubble sensor and associated cut-off mechanism, and terminating at the intravenous cannula; i. means in said system for sensing the temperature, flow rate, and total volume of the physiologic fluid to be infused; and j. means in said system for controlling the temperature, flow rate, pressure, and total volume of the physiologic fluid to be infused.

Claim 12

A system for venous infusion of a physiologic fluid, such as blood, into a patient at a flow rate of at least one liter per minute consisting essentially of: a. a reservoir for the physiologic fluid having an input port for receiving the physiologic fluid and an outlet port for dispensing the physiologic fluid; b. a rollerhead occlusive pump or a centrifugal pump for propelling the physiologic fluid through the system at a flow rate of at least about one liter per minute; c. a heat exchanger with an interrelated heating/cooling unit; d. a micropore filter having a pore size of 40 microns or less; e. a pressure sensor; f. an air bubble sensor with an associated cut-off mechanism; g. one or more intravenous cannula of a relatively large diameter; h. flexible conduit means connecting the reservoir to the infusion pump, the infusion pump to the heat exchanger, the heat exchanger to the micropore filter, the micropore filter to the reservoir and the micropore filter to the air bubble sensor and associated cut-off mechanism, and terminating at the intravenous cannula; i. means in said system for sensing the temperature, flow rate, and total volume of the physiologic fluid to be infused; and j. means in said system for controlling the temperature, flow rate, pressure, and total volume of the physiologic fluid to be infused.