US 2003/0191529 A1Published application

Orthotopic total artificial heart

AssigneeNone recorded

InventorJuan M. Giambruno

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Abstract

An orthotopic total artificial heart for replacing the human heart comprising a new design of two assembled blood chambers with an original layout between themselves and between their inlet and outlet ports. Such design enables a significantly better space utilization inside the anterior mediastinum than the prior art; realizing the required anatomical fit.

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Claims17

Dependent claims

1) An artificial heart comprising:

one right blood chamber, said right blood chamber having an elongated shape essentially directed up and back, said right blood chamber having one right inlet port for blood to enter, said right inlet port having means for attachment to the right atrium,
one posterior outlet port for blood to exit said right blood chamber, said posterior outlet port being located above and behind the right inlet port, said posterior outlet port having means for attachment to the main pulmonary artery, said posterior outlet port either including or being adjacent to the valve for the main pulmonary artery,
one left blood chamber, said left blood chamber having an elongated shape essentially directed up and to the right, said left blood chamber having one left inlet port for blood to enter, said left inlet port having means for attachment to the left atrium,
one anterior outlet port for blood to exit said left blood chamber, said anterior outlet port being located above and to the right of the left inlet port, approximately at the same height as and in front of said posterior outlet port, said anterior outlet port having means for attachment to the aorta artery, said anterior outlet port either including or being adjacent to the valve for the aorta artery,
the spatial arrangement between said blood chambers being such that, when they are simultaneously fully expanded, a part of the right blood chamber, which projects onto the anterior thoracic wall coincides with the projection onto said anterior thoracic wall of a corresponding part of the left blood chamber, is posterior to said corresponding part of the left blood chamber.

2 more elements

Dependencies are inferred from the claim text.

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Abstract

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Drawings

Claims17

Dependent claims

1) An artificial heart comprising:

one right blood chamber, said right blood chamber having an elongated shape essentially directed up and back, said right blood chamber having one right inlet port for blood to enter, said right inlet port having means for attachment to the right atrium,
one posterior outlet port for blood to exit said right blood chamber, said posterior outlet port being located above and behind the right inlet port, said posterior outlet port having means for attachment to the main pulmonary artery, said posterior outlet port either including or being adjacent to the valve for the main pulmonary artery,
one left blood chamber, said left blood chamber having an elongated shape essentially directed up and to the right, said left blood chamber having one left inlet port for blood to enter, said left inlet port having means for attachment to the left atrium,
one anterior outlet port for blood to exit said left blood chamber, said anterior outlet port being located above and to the right of the left inlet port, approximately at the same height as and in front of said posterior outlet port, said anterior outlet port having means for attachment to the aorta artery, said anterior outlet port either including or being adjacent to the valve for the aorta artery,
the spatial arrangement between said blood chambers being such that, when they are simultaneously fully expanded, a part of the right blood chamber, which projects onto the anterior thoracic wall coincides with the projection onto said anterior thoracic wall of a corresponding part of the left blood chamber, is posterior to said corresponding part of the left blood chamber.

2 more elements

Dependencies are inferred from the claim text.

Description6,755 words

Summary2,516 words

#This invention pertains to medical prostheses, and in particular, to an artificial heart. In particular, it is conceived to satisfy the current need for creating a new and original design to achieve a Total Artificial Heart in order to replace a native sick heart in its terminal stage or as a bridge to cardiac transplantation or to be used after a heart transplantation failure.

#At present, when there is a patient with a serious heart disease, which for different reasons is nonreversible, cardiac transplantation is considered as the solution, provided that the patient gets a donor. However, in the United States, for example, there are about 60,000 patients per year under this situation and only about 6% to 10% get a transplantation due to the current difficulties to find an adequate heart donor.

#A Total Artificial Heart (TAH) is recognized as a progress in case of such an extreme situation of a cardiac failure. The present generation of this kind of devices includes the use of different models. In addition, there are partial circulatory assistance devices in use, generally called Left Ventricular Assistance Systems (LVAS).

Brief description of the drawings24 figures

#The accompanying drawings, which are incorporated in, and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

#FIG. 1 Schematic representation of the systemic-pulmonary circulatory system of a human being.

#FIG. 2 General schematic representation of the preferred embodiment of the electro-hydraulic variant of the instant invention.

Detailed description3,592 words

#This invention is herein described in detail, as a non-limiting model and as the preferred way to develop it at present. It is also illustrated in the pictures attached hereto.

#At present, the specific and preferred way to build the Orthotopic Total Artificial Heart, according to this invention, is the one illustrated as a model in the pictures attached hereto. Notwithstanding, the present invention may be subject to different shape and size modifications and the present specifications are not intended to limit the invention to the particular shapes and/or sizes herein described. On the contrary, the intention is to cover all modifications and alternative executions that are within the spirit and the purpose of the invention in accordance with the claims attached hereto.

#Moreover, as there shall be several modifications and changes that shall be analyzed by the technicians in this field, we do not wish to limit the invention to the exact construction or operation described herein. Therefore, any and all equivalent modifications shall be considered as included within the scope of the instant invention.

Abstract

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Claims17

Abstract

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Drawings

Claims17

Description6,755 words

Drawings

Classification4 codes

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Description6,755 words