[특허]Multi-valve catheter for improved reliability

Multi-valve catheter for improved reliability 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-005/00
출원번호	US-0702032 (1991-05-17)
발명자 / 주소	Moorehead H. Robert (Salt Lake City UT)
출원인 / 주소	C.R. Bard, Inc. (Murrah Hill NJ 02)
인용정보	피인용 횟수 : 91 인용 특허 : 0

초록 ▼

A novel apparatus for a catheter for use in aspirating and/or infusing fluids into a patient. The catheter, having a proximal end and a distal end, comprises a plurality of valves in the walls of the catheter comprised of relatively soft material while maintaining a predetermined degree of structural integrity at the catheter tip. The plurality of valves are radially distributed in offset relation around the distal end of the catheter such that no two valves lie in any one radial plane. Similarly, the plurality of valves are longitudinally separated or offset in their placement at relatively short, but differentiated, distances from the distal end of the catheter such that no two valves lie in any one axial plane. The radial and longitudinal separation of the valves helps avoid structrual weakness in the catheter, particularly at the distal end of the catheter. The catheter may be a single-lumen catheter, or a multi-lumen catheter. The plurality of valves are comprised of a primary valve constructed to be preferably operable during infusion and/or aspiration, and at least one secondary valve which operates as a surrogate should the primary valve become partially or totally occluded. The catheter enables repeated infusion and/or aspiration over a period of time. The present invention also includes methods for using and manufacturing the catheter by following certain steps.

대표청구항 ▼

A catheter for use in aspirating or infusing fluids to a patient, the catheter comprising: a cannula having an outer-wall made of a biocompatible material, the cannula having a distal end and a proximal end and at least one internal lumen for transmitting liquids, the at least one internal lumen providing for two-way fluid flow between the proximal end and the distal end of the cannula such that the fluid flow is initiated by the application of a pressure differential to the fluid; means for selectively communicating between the at least one lumen of the cannula and the exterior of the cannula, said means for selectively communicating comprising a plurality of valves, the plurality of valves being comprised of a primary valve and a secondary valve, the primary valve being constructed to operate at a lower threshold pressure differential than the secondary valve so as to be preferably operable relative to the secondary valve during aspiration or infusion, the secondary valve acting as a surrogate to the primary valve should the primary valve fail to operate.

이 특허를 인용한 특허 (91)

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Parker, Fred T., Introducer sheath.
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Boatman, Scott E.; Burton, David G.; Hoffa, Michael C.; Osborne, Thomas A.; Drewes, Jr., David A.; Lessard, David R.; Hupcey, Maggie A. Z., Medical device including unitary, continuous portion of varying durometer.
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Davey Christopher T. ; McCarthy Matthew N., Medical fluid infusion and aspiration.
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Davey Christopher T. ; McCarthy Matthew N., Medical fluid infusion and aspiration.
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Davey, Christopher T.; McCarthy, Matthew N., Medical fluid infusion and aspiration.
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Kuhn, Thomas, Method for electromagnetic guidance of feeding and suctioning tube assembly.
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Ishida, Masahiro, Method involving use of an assembled indwelling assembly.
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Ishida, Masahiro, Method involving use of an assembled indwelling assembly.
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Ishida, Masahiro, Method of indwelling a needle assembly.
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Miller, Stephen C., Method to secure an elastic component in a valve.
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Casey, II, Thomas V., Multi-slit high flow valve.
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Luther Ronald B., Percutaneous port catheter assembly and method of use.
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Miller, Stephen C, Power injection valve.
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Blanchard, Daniel B.; Powers, Kelly B.; Barron, William R., Pressure activated proximal valves.
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Blanchard, Daniel B.; Powers, Kelly B.; Barron, William R., Pressure activated proximal valves.
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Weaver, Karla; DiCarlo, Paul, Pressure activated safety valve with high flow slit.
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Quigley, Karla Weaver; DiCarlo, Paul; Wolfson, Mark, Pressure activated safety valve with improved flow characteristics and durability.
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Lareau, Raymond; Girard, Mark; Bell, Benjamin, Pressure activated valve for high flow rate and pressure venous access applications.
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Lareau, Raymond; Girard, Mark; Bell, Benjamin, Pressure activated valve for high flow rate and pressure venous access applications.
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Weaver, Karla; DiCarlo, Paul D, Pressure activated valve with high flow slit.
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Weaver, Karla; DiCarlo, Paul D., Pressure activated valve with high flow slit.
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Dikeman, W. Cary; Solomon, Thomas J.; Spiker, Kerry L., Pressure actuated flow control valve.
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Dikeman, W. Cary; Solomon, Thomas J.; Spiker, Kerry L., Pressure actuated flow control valve.
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Shmulewitz, Ascher; Bley, Robert S.; Wilcox, Robert L., Pressure-controlled continuous coronary sinus occlusion device and methods of use.
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Morris,Mary M.; Laske,Timothy G.; Heruth,Kenneth T.; Ujhelyi,Michael R.; Casas Bejar,Jesus W., Slit valve catheters.
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Greenawalt, Keith E., Soft tissue prosthesis for repairing a defect of an abdominal wall or a pelvic cavity wall.
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Weaver, Karla; DiCarlo, Paul, Stacked membrane for pressure actuated valve.
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Feld, Tanhum; Konstantino, Eitan, Stent with self-deployable portion.
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Feld, Tanhum; Konstantino, Eitan, Stent with self-deployable portion having wings of different lengths.
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Solar, Ronald J.; Lieber, Glen, System and methods for selective thermal treatment.
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Solar, Ronald J.; Lieber, Glen, Systems and methods for selective thermal treatment.
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Kunz, Lawrence L.; Anderson, Peter G., Therapeutic inhibitor of vascular smooth muscle cells.
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Shaughnessy, Michael C.; Platt, David K.; Purnell, Shawn G.; Nassif, George A.; Smith, Andrew M. L., Tubing assembly and signal generator placement control device and method for use with catheter guidance systems.
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Shaughnessy, Michael C.; Platt, David K.; Purnell, Shawn G.; Nassif, George A.; Smith, Andrew M. L., Tubing assembly and signal generator placement control device and method for use with catheter guidance systems.
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Shaughnessy, Michael C.; Platt, David K.; Purnell, Shawn G.; Nassif, George A.; Smith, Andrew M. L., Tubing assembly and signal generator placement control device and method for use with catheter guidance systems.
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Onuma, Tadatsugu; Makino, Masanori; Sonoyama, Emiyo, Valved catheter.
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Leeflang, Stephen A.; Eversull, Christian S., Valves and hubs for tubular devices and methods for making and using them.
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Leeflang, Stephen A.; Eversull, Christian S., Valves and hubs for tubular devices and methods for making and using them.
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Leeflang, Stephen A.; Eversull, Christian S., Valves and hubs for tubular medical devices and methods for making and using them.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Multi-valve catheter for improved reliability 원문보기

초록 ▼

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연합인증

Multi-valve catheter for improved reliability 원문보기

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대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (91)

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