US4080958A — Apparatus for aiding and improving the blood flow…

Claim 1

Independent Claim 185 words

Apparatus for providing a pulsatile flow of blood to a patient or an organ comprising: a. an avalvular elongated rigid housing having openings at both ends; b. an avalvular double open-ended elongated collapsible essentially impermeable thin-walled balloon-like member disposed within said housing, the diameter of said balloon increasing inwardly from the open ends, the ends of said balloon-like member sealed to the opened ends of said housing; c. a port opening into said housing at a point other than at its opened ends; d. control means communicating with said port to deliver and remove a control medium to and from said housing to alternately collapse and cause said thin-walled balloon-like member to inflate in dependence on patient's or organ's physiologic needs; and e. pump means coupled to receive blood from a patient at its input to provide a substantially steady flow of blood at its output; and f. avalvular means coupling the output of said pump to one end of said avalvular elongated rigid housing, the output of said pulsatile means thereby being adapted to terminate in a cannula to supply blood to a patient.

Claim 2

Dependent Claim 185 words

Apparatus for providing a pulsatile flow of blood to a patient or an organ comprising: a. an avalvular elongated rigid housing having openings at both ends; b. an avalvular double open-ended elongated collapsible essentially impermeable thin-walled balloon-like member disposed within said housing, the diameter of said balloon increasing inwardly from the open ends, the ends of said balloon-like member sealed to the opened ends of said housing; c. a port opening into said housing at a point other than at its opened ends; d. control means communicating with said port to deliver and remove a control medium to and from said housing to alternately collapse and cause said thin-walled balloon-like member to inflate in dependence on patient's or organ's physiologic needs; and e. pump means coupled to receive blood from a patient at its input to provide a substantially steady flow of blood at its output; and f. avalvular means coupling the output of said pump to one end of said avalvular elongated rigid housing, the output of said pulsatile means thereby being adapted to terminate in a cannula to supply blood to a patient.

Claim 3

Dependent Claim 68 words

Apparatus according to claim 1 wherein said port comprises a single port and wherein said control means are adapted to deliver a control medium alternately under a pressure and a vacuum to cause said balloon-like member to collapse and eject blood when the control medium enters said housing and to expand and fill with blood when the control medium is drawn out of said housing under a vacuum.

Claim 4

Dependent Claim 12 words

The apparatus of claim 2 wherein said control medium is a gas.

Claim 5

Dependent Claim 12 words

The apparatus of claim 1 wherein said control medium is a gas.

Claim 6

Dependent Claim 235 words

Heart-lung apparatus for providing a pulsatile flow of oxygenated blood to a patient or an organ comprising: a. pump means to provide at its output a substantiatilly steady flow of oxygenated blood; b. avalvular pulsatile means comprising: 1. an avalvular elongated rigid housing having openings at both ends; 2. an avalvular double open-ended elongated collapsible essentially impermeable thin-walled balloon-like member disposed within said housing, the diameter of said balloon increasing inwardly from the open ends, the ends of said balloon-like member sealed to the opened ends of said housing; 3. a port opening into said housing at a point other than at its opened ends; 4. control means communicating with said port to deliver and remove a control medium to and from said housing to alternately collapse and cause said thin-walled balloon-liked member to inflate in dependence on the patient's or organ's physiologic needs; and c. avalvular means connecting said pump means and said pulsatile means; d. avalvular conduit means coupled to the output of said pulsatile means for delivery of said control pulsatile flow to the patient; e. means for conducting said blood from the patient; f. means having an input coupled to said conducting means for oxygenating the blood removed from the patient and providing oxygenated blood at its output; and g. means coupled to the output of said oxygenating means for conducting said oxygenated blood to the input of said pump means.

Claim 7

Dependent Claim 235 words

Heart-lung apparatus for providing a pulsatile flow of oxygenated blood to a patient or an organ comprising: a. pump means to provide at its output a substantiatilly steady flow of oxygenated blood; b. avalvular pulsatile means comprising: 1. an avalvular elongated rigid housing having openings at both ends; 2. an avalvular double open-ended elongated collapsible essentially impermeable thin-walled balloon-like member disposed within said housing, the diameter of said balloon increasing inwardly from the open ends, the ends of said balloon-like member sealed to the opened ends of said housing; 3. a port opening into said housing at a point other than at its opened ends; 4. control means communicating with said port to deliver and remove a control medium to and from said housing to alternately collapse and cause said thin-walled balloon-liked member to inflate in dependence on the patient's or organ's physiologic needs; and c. avalvular means connecting said pump means and said pulsatile means; d. avalvular conduit means coupled to the output of said pulsatile means for delivery of said control pulsatile flow to the patient; e. means for conducting said blood from the patient; f. means having an input coupled to said conducting means for oxygenating the blood removed from the patient and providing oxygenated blood at its output; and g. means coupled to the output of said oxygenating means for conducting said oxygenated blood to the input of said pump means.

Claim 8

Dependent Claim 79 words

The apparatus of claim 5 wherein said avalvular connecting means comprise a first tubular member coupled to the end of said balloon-like member at the open end of said housing proximate to said pump means and wherein said conduit means comprise a second tubular member force fitted over the end of said balloon-like member on the open end of said housing distal from said pump means, said second tubular member terminating in a cannula for insertion into the patient.

Claim 9

Dependent Claim 66 words

Apparatus according to claim 5 wherein said port comprises a single port and wherein said control means are adapted to deliver medium alternately under a pressure and a vacuum to cause said balloon-like member to collapse and eject blood when the control medium enters said housing and to expand and fill with blood when the control medium is drawn out of said housing under a vacuum.

Claim 10

Dependent Claim 12 words

The apparatus of claim 7 wherein said control medium is a gas.

Claim 11

Dependent Claim 160 words

Apparatus for providing a pulsatile flow of blood to a patient or an organ comprising: a. an avalvular elongated rigid housing having openings at both ends; b. an avalvular double open-ended elongated collapsible essentially impermeable thin-walled balloon-like member disposed within said housing, the diameter of said balloon increasing inwardly from the open ends, the ends of said balloon-like member sealed to the opened ends of said housings; c. a port opening into said housing at a point other than at its opened ends; d. control means communicating with said port to deliver and remove a control medium to and from said housing to alternately collapse and cause said thin-walled balloon-like member to inflate in dependence on the patient's or organ's physiologic needs; and e. a first tubular member coupled to one end of said balloon-like member at one open end of said housing and terminating in a cannula to be inserted into the blood circulatory system of the patient's body.

Claim 12

Dependent Claim 160 words

Apparatus for providing a pulsatile flow of blood to a patient or an organ comprising: a. an avalvular elongated rigid housing having openings at both ends; b. an avalvular double open-ended elongated collapsible essentially impermeable thin-walled balloon-like member disposed within said housing, the diameter of said balloon increasing inwardly from the open ends, the ends of said balloon-like member sealed to the opened ends of said housings; c. a port opening into said housing at a point other than at its opened ends; d. control means communicating with said port to deliver and remove a control medium to and from said housing to alternately collapse and cause said thin-walled balloon-like member to inflate in dependence on the patient's or organ's physiologic needs; and e. a first tubular member coupled to one end of said balloon-like member at one open end of said housing and terminating in a cannula to be inserted into the blood circulatory system of the patient's body.

Claim 13

Dependent Claim 46 words

Apparatus according to claim 9 wherein said first cannula comprises an arterial cannula and further including a second tubular member coupled to the other end of said balloon-like member at the other end of said housing adapted to be coupled to receive a supply of blood.

Claim 14

Dependent Claim 60 words

The apparatus of claim 9 wherein said first cannula is an arterial cannula and further including a second tubular member coupled to the other end of said balloon-like member at the other open end of said housing and means for sealing on the end of said second tubular member to prevent any flow of blood through said second tubular member.

Claim 15

Dependent Claim 169 words

Pulsating aterio-venous fistula apparatus comprising: a. an avalvular elongated rigid housing having openings at both ends; b. an avalvular double open-ended elongated collapsible essentially impermable thin-walled balloon-like member disposed within said housing, the diameter of said balloon increasing inwardly from the open ends, the ends of said balloon-like member sealed to the opened ends of said housing; c. an avalvular first tubular member coupled to one end of said balloon-like member at one open end of said housing and terminating in an arterial cannula; d. an avalvular second tubular member coupled to the other end of said balloon-like member at the other open end of said housing and terminating in a venous cannula; e. a port opening into said housing at a point other than at its open ends; and f. control means communicating with said port to deliver and remove a control medium to and from said housing to alternately collapse and cause said thin-walled balloon-like member to inflate in dependence on the patient's or organ's physiologic needs.

Claim 16

Dependent Claim 169 words

Pulsating aterio-venous fistula apparatus comprising: a. an avalvular elongated rigid housing having openings at both ends; b. an avalvular double open-ended elongated collapsible essentially impermable thin-walled balloon-like member disposed within said housing, the diameter of said balloon increasing inwardly from the open ends, the ends of said balloon-like member sealed to the opened ends of said housing; c. an avalvular first tubular member coupled to one end of said balloon-like member at one open end of said housing and terminating in an arterial cannula; d. an avalvular second tubular member coupled to the other end of said balloon-like member at the other open end of said housing and terminating in a venous cannula; e. a port opening into said housing at a point other than at its open ends; and f. control means communicating with said port to deliver and remove a control medium to and from said housing to alternately collapse and cause said thin-walled balloon-like member to inflate in dependence on the patient's or organ's physiologic needs.

Claim 17

Dependent Claim 152 words

Apparatus for providing a pulsatile flow of blood to the coronary arteries of the heart comprising: a. pump means, having an input adapted to be coupled to receive blood from a patient, to provide, at at least two outputs, a substantially steady flow of blood; b. at least first and second avalvular pulsatile means having their inputs respectively coupled to said at least two pump outputs to convert said steady flow to pulsatile flow at their outputs without causing additional trauma to the blood, said outputs adapted to to be connected to the coronary arteries of the heart; c. control means to deliver a control medium to each of said pulsatile means in order to control the nature of said pulsatile flow; and d. valve means connected to said control means and to each of said pulsatile means to direct the flow of said control medium to each of said pulsatile means.

Claim 18

Dependent Claim 152 words

Apparatus for providing a pulsatile flow of blood to the coronary arteries of the heart comprising: a. pump means, having an input adapted to be coupled to receive blood from a patient, to provide, at at least two outputs, a substantially steady flow of blood; b. at least first and second avalvular pulsatile means having their inputs respectively coupled to said at least two pump outputs to convert said steady flow to pulsatile flow at their outputs without causing additional trauma to the blood, said outputs adapted to to be connected to the coronary arteries of the heart; c. control means to deliver a control medium to each of said pulsatile means in order to control the nature of said pulsatile flow; and d. valve means connected to said control means and to each of said pulsatile means to direct the flow of said control medium to each of said pulsatile means.

Claim 19

Dependent Claim 85 words

The apparatus of claim 13 wherein each of said pulsatile means comprises: a. an avalvular elongated rigid housing having openings at both ends; b. an avalvular double open-ended elongated collapsible balloon-like member disposed within said housing, the ends of said balloon-like member being everted over the open ends of said housing; and c. a port communicating with said valve means and opening into said housing at a point other than at its open ends to permit the control medium to enter and leave said housing.

Claim 20

Dependent Claim 65 words

The apparatus of claim 14 wherein said control medium is a gas and wherein said valve means directs said gas to either, both or neither of said pulsatile means in order to cause either, both or neither of said balloon members to collapse and eject blood when the gas enters said housings or to expand and fill with blood when the gas leaves said housings.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1981-03-27	1981-09-26	1982-03-28	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1985-03-27	1985-09-26	1986-03-28	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1989-03-27	1989-09-26	1990-03-28	$7700.00	Window Closed / Lapsed

Apparatus for aiding and improving the blood flow in patients

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