Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Corporeal artificial heart – heart assist – control... – Including electrical power generating means
Patent
1999-03-24
2000-09-26
Snow, Bruce
Prosthesis (i.e., artificial body members), parts thereof, or ai
Corporeal artificial heart, heart assist , control...
Including electrical power generating means
623 313, 600 17, A61M 110
Patent
active
061237264
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Technical Field
The present invention relates to medical equipment for use in a human body, and more particularly, to a portable drive system for an artificial heart, and to a portable drive system for an artificial heart that has high safety, high reliability, and reduced size and weight, and is easy to use, thereby expanding the range of life.
2. Background Art
Since a conventional drive system for an artificial heart is large and difficult to move, the life of a patient using the artificial heart has been limited to the inside of a hospital. While attempts have recently been made to reduce the size of an artificial-heart drive system, a system to be used in life outside a hospital is not yet in actual use in terms of size and safety.
An artificial-heart drive system is large, and therefore, the life of the patient is limited to the inside of the hospital. In terms of improved quality of life for the patient and medical rehabilitation, it is preferable that the life of the patient be not limited and that the patient can live a life at home. For that purpose, it is necessary to reduce the size of attendant fixtures of the artificial heart, to improve reliability, and to establish safeguards.
Accordingly, the present invention has been made in view of such circumstances, and has as an object the provision of a drive system for an artificial heart that does not limit the life of a patient having an implanted artificial heart with much regard for high safety.
DISCLOSURE OF INVENTION
A portable drive system for an artificial heart according to the present invention includes a blood pump 1 to be implanted in a body, a system drive section 45 for controlling the blood pump 1 from outside the body, and a connecting section 70 for connecting the blood pump 1 or purge solution circulating means and the system drive section 45. The connecting section 70 penetrates through the epidermis F of a patient.
The system drive a purge solution circulator 20 or a purge solution circulating means for supplying by circulating solution (hereinafter referred to as purge solution) to a contact surface of a blood seal 18 located inside the blood pump 1 in order to maintain the shaft sealing of a rotation shaft 13 in the blood pump 1 with respect to blood, a pump controller 30 pump control means for electrically controlling the drive of the blood pump 1 via. a motor cable 71, a display 40 or display means for displaying operation states of the aforementioned means and data thereon, a communication interface 50 or communication means for exchanging information with the outside, a power supply 33 or power supply means for supplying electric power to the aforementioned means, a controller 100 or control means for controlling the aforesaid means, and a transport section 60 for bearing the system drive section 45 portably.
The blood seal 18 includes a contact seal, such as a mechanical seal and an oil seal.
The connecting section 70 includes purge tubes 24 and 25 for connecting the blood pump 1 and the purge solution circulator 20 and causing the purge solution to circulate between the purge solution circulator 20 and the contact surface of the blood seal 18, and the motor cable 71 for supplying electric power to the blood pump 1, a connecting terminal 80 for connecting internally embedded parts and externally exposed parts of the purge tubes 24 and 25 and the motor cable 71, a skin button section 90 for causing parts of the purge tubes 24 and 25 and the motor cable 71, which penetrate through the epidermis F, to firmly adhere to the epidermis F, a valve mechanism 75 for blocking the flow of the purge solution, and a protective tube 72 for covering the externally exposed parts of the purge tubes 24 and 25 and the motor cable 71.
The system drive section 45 has a plurality of pump controller 30 and a plurality of power supply 33, and at least one pair of the pump controller 30 and the power supply means 33 are located inside or near the connecting terminal 80.
The system drive section 45 further has a m
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Higuchi Koji
Kaneko Keiichi
Mori Toshio
Yamazaki Kenji
Seiko Epson Corporation
Snow Bruce
Sun Medical Technology Research Corporation
Watson Mark P.
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