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| Method for the percutaneous suturing of a vascular puncture site |
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| Method and apparatus for implanting a graft in a vessel of a patient |
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Portable drive system for artificial heart
| Details |
Inventors: Mori, Toshio; Yamazaki, Kenji; Higuchi, Koji; Kaneko, Keiichi;
Assignee: Seiko Epson Corporation (Tokyo, JP); Sun Medical Technology Research Corporation (Suwa, JP)
Primary Examiner: Snow; Bruce
Assistant Examiner:
Attorney, Agent or Firm: Watson; Mark P.
A portable drive system for an artificial heart can be provided that includes a blood pump 1 having a blood seal for sealing a rotation shaft 13, a system drive section 45 including a purge solution circulator 20 for supplying by circulating purge solution to the blood seal 18, a pump controller 30 for driving the blood pump 1, a power supply means 33 for supplying electric power thereto, a display 40 for displaying operating states thereof, a communication interface 50 for transmitting information to the outside, and a controller means 100 for controlling these components, a portable transport section 60 for bearing the system drive section 45, and a connecting section 70 for connecting the blood pump 1 and the system drive section 45. The portable artificial-heart drive system has high safety and high reliability, is small-sized, lightweight and easy to use, and can expand the range of life. |
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DETAILED DESCRIPTION What is claimed is: 1.
A portable artificial-heart drive system, comprising: a blood pump to cause blood to flow, said blood pump comprising: a motor portion having a drive shaft to drive an artificial heart of a patient, a bearing, a rotation shaft extending from said motor portion and supported by said bearing, a pump vane driven via said rotation shaft, a blood seal for preventing a blood ingredient from entering said bearing, and a casing connected to said motor portion and covering said pump vane; a system drive section comprising: a purge solution circulator to supply purge fluid solution by circulating to a contact portion of said blood seal to maintain shaft sealing of said rotation shaft with respect to blood of the patient, a motor cable, a pump controller to electrically control said motor portion in said blood pump via said motor cable, a power supply to supply electric power to said pump controller and said purge solution circulator, a display to display operating states of at least one of said pump controller, said power supply and said purge solution circulator and data thereon, a communication interface to exchange information with an external device, and a controller to control said display, said communication interface, said pump controller, said power supply and said purge solution circulator; a movable transport section accommodating said system drive section; and a connection unit comprising: a connecting section to connect said blood pump and said system drive section, and a skin button section to secure said connecting section on the epidermis of the patient.
2.
A portable artificial-heart; drive system according to claim 1, wherein said blood seal comprises one of a mechanical seal and an oil seal.
3.
A portable artificial-heart drive system according to claim 1, wherein each of said purge solution circulator, pump controller, display, controller and communication interface has a respective priority, wherein said power supply supplies electric power only to at least one of said purge solution circulator, pump controller, display, controller and communication interface if the respective priority is high and if a quantity of electric power remaining in said power supply falls below a specified value
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Heart Surgery 
