Implantable heart assist system and method of applying same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-001/10
A61M-001/12
출원번호
US-0078260
(2002-02-15)
발명자
/ 주소
Viole, Anthony
Sirimanne, Laksen
Bolling, Steven F.
O'Leary, Shawn
Pecor, Robert
Kelly, Ryan
Werner, Wolfgang
Beizai, Masoud
출원인 / 주소
Orqis Medical Corporation
대리인 / 주소
Knobbe, Martens, Olson & Bear LLP
인용정보
피인용 횟수 :
116인용 특허 :
95
초록▼
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system comprises a pump with inflow and out
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system comprises a pump with inflow and outflow conduits that are sized and configured to be implantable intravascularly through a non-primary vessel, whereby it may positioned where desired within the patient's vasculature. The system comprises a subcardiac pump that may be driven directly or electromagnetically from within or without the patient. The pump is configured to be operated continuously or in a pulsatile fashion, synchronous with the patient's heart, thereby potentially reducing the afterload of the heart. In another embodiment, the system is positioned extracorporeally, with the inflow conduit and outflow conduit applied percutaneously to a non-primary vessel for circulating blood to and from the non-primary vessel or between the non-primary vessel and another blood vessel within the patient's vasculature.
대표청구항▼
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system comprises a pump with inflow and out
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system comprises a pump with inflow and outflow conduits that are sized and configured to be implantable intravascularly through a non-primary vessel, whereby it may positioned where desired within the patient's vasculature. The system comprises a subcardiac pump that may be driven directly or electromagnetically from within or without the patient. The pump is configured to be operated continuously or in a pulsatile fashion, synchronous with the patient's heart, thereby potentially reducing the afterload of the heart. In another embodiment, the system is positioned extracorporeally, with the inflow conduit and outflow conduit applied percutaneously to a non-primary vessel for circulating blood to and from the non-primary vessel or between the non-primary vessel and another blood vessel within the patient's vasculature. said perforation teeth extend from said burst protection gap to the second end of said base. 5. A perforation blade according to claim 1, wherein said perforation teeth are uniformly spaced. 6. A perforation blade according to claim 1, wherein said perforation teeth have a uniform length. 7. A perforation blade according to claim 1, wherein said base defines a height greater than a length of said first perforation tooth. 8. A perforation blade according to claim 1, wherein said base is formed of spring steel. 9. In combination with a bag cutting device used for cutting a perforated tear line in a bag to form an easy-open corner portion, the corner portion being removable to define a pourer through which contents of the bag are dispensed, the bag having first and second walls with joined opposing side edges, opposing end edges, and a seal line proximate one of the end edges for sealing closed an end of the bag, the improvement comprising a perforation blade mounted within said bag cutting device, said perforation blade comprising: (a) a base formed to span the corner portion of the bag, said base having a first end adapted to extend to the end edge of the bag proximate the seal line, and a second end adapted to extend to one side edge of the bag; (b) a series of closely spaced perforation teeth formed with said base and adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag; (c) a starter tooth formed at the first end of said base, and adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line; and (d) a burst protection gap formed between said starter tooth and a first of said series of perforation teeth, said burst protection gap being at least 50 percent wider than the space formed between said first perforation tooth and a second, adjacent perforation tooth, whereby said burst protection gap is adapted for receiving the seal line of the bag to prevent severing the seal line when cutting the perforations. 10. A perforation blade used for cutting a perforated tear line in a bag to form an easy-open corner portion, the corner portion being removable to define a pourer through which contents of the bag are dispensed, the bag having first and second walls with joined opposing side edges, opposing end edges, and a seal line proximate one of the end edges for sealing closed an end of the bag, said perforation blade comprising: (a) a base formed to span the corner portion of the bag, said base having a first end adapted to extend to the end edge of the bag proximate the seal line, and a second end adapted to extend to one side edge of the bag; (b) a series of closely spaced perforation teeth formed with said base and adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag; (c) a starter tooth formed at the first end of said base, and adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line; and (d) a burst protection gap formed between said starter tooth and a first of said series of perforation teeth, said burst protection gap defining a depth at least 20 percent greater than a depth of the space between said first perforation tooth and a second, adjacent perforation tooth, whereby said burst protection gap is adapted for safely receiving the seal line of the bag to prevent severing the seal line when cutting the perforations. 11. A perforation blade according to claim 10, wherein said starter tooth is larger than said first perforation tooth. 12. A perforation blade according to claim 10, wherein said perforation teeth extend from said burst protection gap to the second end of said base. 13. A perforation blade according to claim 10, wherein said perforation teeth are uniformly spaced. 14. A perforation blade according to claim 10, wherein said perforation teeth ha ve a uniform length. 15. A perforation blade according to claim 10, wherein said base defines a height greater than a length of said first perforation tooth. 16. a perforation blade according to claim 10, wherein said base is formed of spring steel. 17. A perforation blade used for cutting a perforated tear line in a bag to form an easy-open corner portion, the corner portion being removable to define a pourer through which contents of the bag are dispensed, the bag having first and second walls with joined opposing side edges, opposing end edges, and a seal line proximate one of the end edges for sealing closed an end of the bag, said perforation blade comprising: (a) a base formed to span the corner portion of the bag, said base having a first end adapted to extend to the end edge of the bag proximate the seal line, and a second end adapted to extend to one side edge of the bag; (b) a series of closely spaced perforation teeth formed with said base and adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag; (c) a starter tooth formed at the first end of said base, and adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line; and (d) a burst protection gap formed between said starter tooth and a first of said series of perforation teeth, said starter tooth being larger than said first perforation tooth, and said burst protection gap adapted for safely receiving the seal line of the bag to prevent severing the seal line when cutting the perforations. 18. A perforation blade according to claim 17, wherein said perforation teeth extend from said burst protection gap to the second end of said base. 19. A perforation blade according to claim 17, wherein said perforation teeth are uniformly spaced. 20. A perforation blade according to claim 17, wherein said perforation teeth have a uniform length. 21. A perforation blade according to claim 17, wherein said base defines a height greater than a length of said first perforation tooth. 22. A perforation blade according to claim 17, wherein said base is formed of spring steel. 23. In combination with a bag cutting device used for cutting a perforated tear line in a bag to form an easy-open corner portion, the corner portion being removable to define a pourer through which contents of the bag are dispensed, the bag having first and second walls with joined opposing side edges, opposing end edges, and a seal line proximate one of the end edges for sealing closed an end of the bag, the improvement comprising a perforation blade mounted within said bag cutting device, said perforation blade comprising: (a) a base formed to span the corner portion of the bag, said base having a first end adapted to extend to the end edge of the bag proximate the seal line, and a second end adapted to extend to one side edge of the bag; (b) a series of closely spaced perforation teeth formed with said base and adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag; (c) a starter tooth formed at the first end of said base, and adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line; and (d) a burst protection gap formed between said starter tooth and a first of said series of perforation teeth, said burst protection gap defining a depth at least 20 percent greater than a depth of the space between said first perforation tooth and a second, adjacent perforation tooth, whereby said burst protection gap is adapted for receiving the seal line of the bag to prevent severing the seal line when cutting the perforations. 24. In combination with a bag cutting device used for cutting a perforated tear line in a bag to form an easy-open corner portion, the corner portion being removable to define a pourer through which contents of the bag are dispensed, the bag having first and second walls with joined opposing side edges, opposing end edges, and a seal line proximate one of the end edges for sealing closed an end of the bag, the improvement comprising a perforation blade mounted within said bag cutting device, said perforation blade comprising: (a) a base formed to span the corner portion of the bag, said base having a first end adapted to extend to the end edge of the bag proximate the seal line, and a second end adapted to extend to one side edge of the bag; (b) a series of closely spaced perforation teeth formed with said base and adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag; (c) a starter tooth formed at the first end of said base, and adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line; and (d) a burst protection gap formed between said starter tooth and a first of said series of perforation teeth, said starter tooth being larger than said first perforation tooth, and said burst protection gap adapted for receiving the seal line of the bag to prevent severing the seal line when cutting the perforations.
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이 특허에 인용된 특허 (95)
Whalen Robert L. (Cambridge MA), Apparatus and method of use for pulsatile blood flow.
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