Heart assist devices, systems and methods
First Claim
1. A heart assist device adapted for implantation into a patient, the device including:
- a) an aortic compression means adapted, when actuated, to compress an aorta of a patient;
b) a fluid reservoir; and
c) a pump means adapted to pump a fluid from the fluid reservoir to the aortic compression means so as to actuate the aortic compression means at least partly in counterpulsation with the patient'"'"'s heart, wherein the quid reservoir is adapted to be wholly positioned within the chest cavity of the patient.
3 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for use in assisting a human heart are disclosed. The apparatus comprises an aortic compression means which may be fully implanatable, a fluid reservoir and a pump means adapted to pump a fluid from the reservoir to the aortic compression means so as to actuate the aortic compression means at least partly in counterpulsation with the patient'"'"'s heart. In addition, the device is adapted to be wholly positioned within the right chest cavity of the patient. The aortic compression means of the device may be curved along its length so as to substantially replicate the curve of the ascending aorta.
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Citations
61 Claims
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1. A heart assist device adapted for implantation into a patient, the device including:
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a) an aortic compression means adapted, when actuated, to compress an aorta of a patient;
b) a fluid reservoir; and
c) a pump means adapted to pump a fluid from the fluid reservoir to the aortic compression means so as to actuate the aortic compression means at least partly in counterpulsation with the patient'"'"'s heart, wherein the quid reservoir is adapted to be wholly positioned within the chest cavity of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 61)
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21. A heart assist device adapted for implantation into a patient, the device including:
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a) an aortic compression means adapted, when actuated, to compress the ascending aorta of a patient;
b) a liquid reservoir;
c) a pump means adapted to pump a liquid from the liquid reservoir to the aortic compression means so as to actuate the compression means, wherein the liquid reservoir and the aortic compression means are adapted to be positioned in close juxtaposition with one another within the chest cavity of the patient. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. An aortic compression means for use in a heart assist device, the aortic compression means including:
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a) an elastic inflatable cuff adapted to be placed about the ascending aorta of a patient; and
b) a flexible, substantially inelastic, sheath adapted to extend around the cuff and at least assist in retaining it in position on the aorta. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A heart assist device including:
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a) an aortic compression means adapted to be placed around the ascending aorta of a patient; and
b) an actuation means to periodically actuate the aortic compression means in at least partial counterpulsation with the heart, wherein the aortic compression means, and the actuation means are placed wholly within the chest activity of the patient. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54)
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55. A heart assist device adapted for implantation wholly into a bodily cavity of a patient, the device including:
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c) an aortic compression means adapted, when actuated, to compress an aorta of a patient;
d) a housing with an exterior surface;
c) a fluid reservoir in the housing, the fluid reservoir having a flexible exterior surface forming part of the housing exterior surface; and
d) a pump means adapted to pump a fluid from the fluid reservoir to the aortic compression means so as to actuate the aortic compression means at least partly in counterpulsation with the patient'"'"'s heart, wherein the fluid reservoir flexible exterior surface is adapted to expand during aortic compression and constrict in the absence of aortic compression and is further adapted to be positioned substantially adjacent a flexible organ in the patient'"'"'s bodily cavity. - View Dependent Claims (56)
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57. A heart assist device adapted for implantation into a patient, the device including:
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a) an elastic inflatable cuff adapted, when inflated, to compress an aorta of a patient;
b) a fluid reservoir;
c) a means for pumping a fluid from the fluid reservoir to the cuff so as to inflate the aortic compression means at least partly in counterpulsation with the patient'"'"'s heart; and
d) a means for adjusting the volume of fluid in the cuff in the absence of aortic compression. - View Dependent Claims (58, 59, 60)
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Specification