Method of controlling an irrigation/aspiration system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-031/00
A61M-001/00
출원번호
US-0521583
(2006-09-14)
등록번호
US-8465467
(2013-06-18)
발명자
/ 주소
Gao, Shawn X.
출원인 / 주소
Novartis AG
인용정보
피인용 횟수 :
2인용 특허 :
149
초록
A dual pump aspiration system having both a vacuum level control loop and a flow rate control loop. The system can be operated either as a vacuum priority system or a flow rate priority system.
대표청구항▼
1. A method of controlling an irrigation/aspiration system, the system having an irrigation line, an irrigation flow sensor and a vacuum pump, the vacuum pump communicating with a surgical site through a collection chamber and an aspiration line, the method comprising: a) connecting the irrigation l
1. A method of controlling an irrigation/aspiration system, the system having an irrigation line, an irrigation flow sensor and a vacuum pump, the vacuum pump communicating with a surgical site through a collection chamber and an aspiration line, the method comprising: a) connecting the irrigation line to a source of irrigation fluid;b) operating the vacuum pump so as to introduce a vacuum into the collection chamber so as to draw an irrigation fluid from the source of irrigation fluid through the irrigation line, the surgical site and the aspiration line and into the collection chamber;c) adjusting a level of fluid in the collection chamber by using a flow pump and/or the vacuum pump;d) monitoring a flow of the irrigation fluid in the irrigation line with the flow sensor;e) monitoring the fluid level in the collection chamber using a fluid level sensor;f) monitoring the vacuum in the collection chamber from the vacuum pump; andg) varying the vacuum introduced into the chamber based on the monitored irrigation fluid flow and the monitored fluid level in the collection chamber so as to maintain fluid flow into the chamber through the aspiration line at a selected flow rate. 2. The method of claim 1, wherein maintaining the fluid flow at the selected flow rate is implemented for the system in a flow rate control mode and wherein the method further comprises implementing a vacuum control mode. 3. The method of claim 2, wherein implementing the vacuum control mode comprises varying the vacuum introduced into the collection chamber based on the monitored vacuum pressure and the monitored fluid level in the collection chamber so as to maintain a steady pressure level in the aspiration line. 4. The method of claim 1, further comprising calculating an aspiration fluid flow in the aspiration line. 5. The method of claim 4, wherein calculating the aspiration fluid flow comprises using the monitored irrigation fluid flow or pressure, the monitored vacuum pressure, and/or the monitored fluid level in the collection chamber. 6. The method of claim 4, further comprising comparing the calculated aspiration fluid flow and the monitored irrigation fluid flow to determine an amount of leakage of the irrigation fluid at the surgical site. 7. The method of claim 4, further comprising comparing the calculated aspiration fluid flow and the monitored irrigation fluid flow to determine when an obstruction has occurred in the irrigation line or the aspiration line. 8. The method of claim 4, further comprising controlling the flow of irrigation fluid at the surgical site without introducing pulsations to the surgical site through the aspiration line at least in part by comparing the calculated aspiration fluid flow and the monitored irrigation fluid flow. 9. The method of claim 2, further comprising: while in vacuum control mode, adjusting vacuum supplied by the vacuum pump and controlling the flow pump to evacuate fluid from the collection chamber when a level of fluid in the collection chamber reaches a pre-selected level. 10. The method of claim 1, wherein monitoring the flow of irrigation fluid comprises detecting a flow rate or pressure within the irrigation line using a sensor and sending the detected flow rate or pressure to control circuitry;wherein monitoring the fluid level in the collection chamber comprises detecting a fluid level in the collection chamber using a fluid level sensor and sending the detected fluid level to the control circuitry;wherein monitoring the vacuum in the collection chamber comprises detecting a vacuum level in the collection chamber using a pressure transducer and sending the detected vacuum level to the control circuitry;wherein varying vacuum introduced into the chamber comprises: the control circuitry using the received irrigation flow rate or pressure, fluid level, and vacuum level to determine aspiration fluid flow rate; andthe control circuitry sending a signal to the vacuum pump to increase or decrease the vacuum based on a comparison of the determined aspiration fluid flow rate and the selected flow rate. 11. A method of controlling an irrigation/aspiration system, the system having an irrigation line, an irrigation flow sensor and a vacuum pump, the vacuum pump communicating with a surgical site through a collection chamber and an aspiration line, the method comprising: a) connecting the irrigation line to a source of irrigation fluid;b) operating the vacuum pump so as to introduce a vacuum into the collection chamber so as to draw an irrigation fluid from the source of irrigation fluid through the irrigation line, the surgical site and the aspiration line and into the collection chamber;c) adjusting a level of fluid in the collection chamber by using a flow pump and/or the vacuum pump;d) monitoring a flow of the irrigation fluid in the irrigation line with the flow sensor;e) monitoring the fluid level in the collection chamber using a fluid level sensor;f) monitoring the vacuum in the collection chamber from the vacuum pump; andg) varying the vacuum introduced into the chamber based on the monitored irrigation fluid flow and the monitored fluid level in the collection chamber so as to maintain fluid flow into the chamber through the aspiration line at a selected flow rate;wherein maintaining the fluid flow at the selected flow rate is implemented for the system in a flow rate control mode and wherein the method further comprises implementing a vacuum control mode;wherein implementing the vacuum control mode comprises maintaining a pressure level in the aspiration line. 12. The method of claim 11, wherein implementing the vacuum control mode comprises varying the vacuum introduced into the collection chamber based on the monitored vacuum pressure and the monitored fluid level in the collection chamber so as to maintain a steady pressure level in the aspiration line. 13. The method of claim 11, wherein a flow controlled mode is maintained unless certain conditions are present in which case the vacuum controlled mode is implemented. 14. The method of claim 11, further comprising: while in vacuum control mode, adjusting vacuum supplied by the vacuum pump and controlling the flow pump to evacuate fluid from the collection chamber when a level of fluid in the collection chamber reaches a pre-selected level. 15. The method of claim 11, wherein monitoring the flow of irrigation fluid comprises detecting a flow rate or pressure within the irrigation line using a sensor and sending the detected flow rate or pressure to control circuitry;wherein monitoring the fluid level in the collection chamber comprises detecting a fluid level in the collection chamber using a fluid level sensor and sending the detected fluid level to the control circuitry;wherein monitoring the vacuum in the collection chamber comprises detecting a vacuum level in the collection chamber using a pressure transducer and sending the detected vacuum level to the control circuitry;wherein implementing the flow rate control mode to vary vacuum introduced into the chamber comprises: the control circuitry using the received irrigation flow rate or pressure, fluid level, and vacuum level to determine aspiration fluid flow rate; andthe control circuitry sending a signal to the vacuum pump to increase or decrease the vacuum based on a comparison of the determined aspiration fluid flow rate and the selected flow rate;wherein implementing the vacuum control mode to maintain a pressure level in the aspiration line comprises: the control circuitry using the received vacuum level to signal a vacuum pump to adjust a vacuum supplied to the chamber; andbased on the received fluid level, the control circuitry sending a signal to a flow pump to evacuate fluid from the chamber to maintain a steady pressure level in the aspiration line. 16. A method of controlling an irrigation/aspiration system, the system having an irrigation line, an irrigation flow sensor and a vacuum pump, the vacuum pump communicating with a surgical site through a collection chamber and an aspiration line, the method comprising: a) connecting the irrigation line to a source of irrigation fluid;b) operating the vacuum pump so as to introduce a vacuum into the collection chamber so as to draw an irrigation fluid from the source of irrigation fluid through the irrigation line, the surgical site and the aspiration line and into the collection chamber;c) adjusting a level of fluid in the collection chamber by using a flow pump and/or the vacuum pump;d) monitoring a flow of the irrigation fluid in the irrigation line with the flow sensor;e) monitoring the fluid level in the collection chamber using a fluid level sensor;f) monitoring the vacuum in the collection chamber from the vacuum pump; andg) varying the vacuum introduced into the chamber based on the monitored irrigation fluid flow and the monitored fluid level in the collection chamber so as to maintain fluid flow into the chamber through the aspiration line at a selected flow rate;wherein maintaining the fluid flow at the selected flow rate is implemented for the system in a flow rate control mode and wherein the method further comprises implementing a vacuum control mode;wherein a flow controlled mode is maintained unless certain conditions are present in which case the vacuum controlled mode is implemented. 17. The method of claim 16, wherein implementing the vacuum control mode comprises varying the vacuum introduced into the collection chamber based on the monitored vacuum pressure and the monitored fluid level in the collection chamber so as to maintain a steady pressure level in the aspiration line. 18. The method of claim 16, further comprising: while in vacuum control mode, adjusting vacuum supplied by the vacuum pump and controlling the flow pump to evacuate fluid from the collection chamber when a level of fluid in the collection chamber reaches a pre-selected level. 19. The method of claim 16, wherein monitoring the flow of irrigation fluid comprises detecting a flow rate or pressure within the irrigation line using a sensor and sending the detected flow rate or pressure to control circuitry;wherein monitoring the fluid level in the collection chamber comprises detecting a fluid level in the collection chamber using a fluid level sensor and sending the detected fluid level to the control circuitry;wherein monitoring the vacuum in the collection chamber comprises detecting a vacuum level in the collection chamber using a pressure transducer and sending the detected vacuum level to the control circuitry;wherein implementing the flow rate control mode to vary vacuum introduced into the chamber comprises: the control circuitry using the received irrigation flow rate or pressure, fluid level, and vacuum level to determine aspiration fluid flow rate; andthe control circuitry sending a signal to the vacuum pump to increase or decrease the vacuum based on a comparison of the determined aspiration fluid flow rate and the selected flow rate;wherein implementing the vacuum control mode to maintain a pressure level in the aspiration line comprises: the control circuitry using the received vacuum level to signal a vacuum pump to adjust a vacuum supplied to the chamber; andbased on the received fluid level, the control circuitry sending a signal to a flow pump to evacuate fluid from the chamber to maintain a steady pressure level in the aspiration line.
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Gijselhart Paulus H. P. M. (Best NLX) van der Wouden Adriaan (Zundert NLX), Apparatus for controlling the flow of an infusion fluid in an infusion system.
Schechter Alan M. (Long Beach CA) Mark Joseph L. (Indianapolis IN) Stave Frederick R. (St. Joseph MI), Apparatus for minimally invasive tissue removal.
Steppe Dennis L. (Tustin CA) Hood Larry L. (Laguna Hills CA) Boggs Gary D. (Santa Ana CA), Cassette for surgical irrigation and aspiration and sterile package therefor.
Mathies Burkhard (Givrins CHX) Misse Didier (Grand-Saconnex CHX) Guignard Claude (St. Genis-Pouilly CHX) Pidoux Paul (Bassins CHX), Circulating a liquid through a joint.
Murry Edward J. (Palos Park IL) Brumbach Joseph F. (Niles IL), Device and method for applying precise irrigation, aspiration, medication, ultrasonic power and dwell time to biotissue.
Storz Karl (Auf dem Schildrain 39 78532 Tuttlingen DEX) Novak Pavel (Stettemerstr ; 117 CH-8207 Schaffhausen CHX), Device for irrigation of body cavities.
Hossain K. Mosaddeq (Hillsborough NJ) Paganelli Jude V. (New Britain PA) Fischer Bernd R. (E. Norristown PA) Bross Robert M. (Ivyland PA) Cook Kenneth P. (Blue Bell PA), Disposable vacuum/peristaltic pump cassette system.
Hossain K. Mosaddeq (Hillsborough NJ) Paganelli Jude V. (New Britain PA) Fischer Bernd R. (E. Norristown PA) DeMeo Deborah A. (Tustin CA) Bross Robert M. (Ivyland PA) Cook Kenneth P. (Blue Bell PA), Disposable vacuum/peristaltic pump cassette system.
Ezell Larry O. (Clinton MS) Schmid John (Jackson MS) Tovey Peter (Jackson MS), Failsafe electrohydraulic control system for variable displacement pump.
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Dodge Larry H. (River Falls WI) Christmann H. Aaron (Afton MN) Dunberger Ulf B. (Portsmouth NH) Egan Thomas D. (Marblehead MA) Watts James R. (Woodbury MN), Irrigation system with tubing cassette.
Schechter Alan M. (Long Beach CA) Stave Frederick R. (St. Joseph MI) Mark Joseph L. (Indianapolis IN), Method and apparatus for minimally invasive tissue removal.
Lemaire Ivan (St Didier au Mont d\Or FRX) Gonon Bertrand (Lyon FRX), Method and device for controlled irrigation and suctioning of a liquid clarificant during endoscopic surgery.
Wuchinich David G. (New York NY) Krawitt Donald R. (Rhinebeck NY) Brendolan Robert (Mamaroneck NY) Katz Louis (Flushing NY), Method for removing cellular material with endoscopic ultrasonic aspirator.
Beuchat Charles E. (Irvine CA) Etherington Roger (Newport Beach CA) Walbrink Harold J. (Laguna Niguel CA) Berkman John W. (Grants Pass OR), Microsurgical cassette.
Beuchat Charles E. (Irvine CA) Etherington Roger (Newport Beach CA) Walbrink Harold J. (Laguna Niguel CA) Berkman John W. (Grants Pass OR), Microsurgical cassette.
Walbrink Harold J. (Laguna Niguel CA) Etherington Roger F. (Newport Beach CA) Beuchat Charles E. (Irvine CA) Burgess Vincent J. (Hermosa Beach CA) Richards Kent D. (Lake Forest CA), Minimally invasive irrigator/aspirator surgical probe and method of using same.
Garrett Scott T. (Highland Park IL) Jess Thurman S. (Mundelein IL) Knigge Vincent L. (Mundelein IL) Kulle Lee K. (Mundelein IL) Rudzena William L. (McHenry IL) Zissimopoulos Nick (Schaumburg IL), Noncritically aligned valving devices for flow rate-limiting cassettes used in intravenous solution administering equipm.
Armeniades C. D. (2127 Addison Rd. Houston TX 77030) Moorhead Louise C. (3803 University Blvd. Houston TX 77005), Ophthalmic instrument for measuring intraocular fluid pressure.
Appelbaum Peter Francis ; Bisch Michael Evremonde ; Cochran Bruce Robert ; Eberhardt Christopher Michael ; Knight Jeffery Alan ; Painter John A. ; Ritter John Alan, Ophthalmic microsurgical system employing surgical module employing flash EEPROM and reprogrammable modules.
Giesler Richard C. ; Miles Myra P. ; Lovelace Susan L. ; Patno Timothy J. ; West Richard L., Peristaltic pump tube holder with pump tube shield and cover.
Barwick ; Jr. Billie J. (85 Hull St. Beverly MA 01915) Little James H. (6601 S. Country Club Dr. Oklahoma City OK 73159), Phacoemulsification method and apparatus.
Barwick ; Jr. Billie John (85 Hull St. Beverly MA 01915) Little James H. (6601 S. Country Club Dr. Oklahoma City OK 73159), Phacoemulsification system having ultrasonic power controlled by aspiration vacuum sensor.
Perkins James T. (St. Charles MO) Appelbaum Peter F. (St. Louis MO) Painter John A. (St. Charles MO), Pneumatic controls for ophthalmic surgical system.
Hammer Michael Ron,AUX ; Park Christopher John,AUX ; Allen Brian Lawrence,AUX ; Turney Thomas Robert,AUX, Pressing plate for linearized pulses from a peristaltic pump.
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Weinberger Joseph (Brunswick NJ) Bricault Gary S. (Rochester NY) Gruber David (Rochester NY) Rakover Eleonora (Rochester NY), Sequencing means for photocopying processes.
Yamazaki, Kiyoyasu; Kitahara, Toshimasa; Masuzawa, Suminori; Funahashi, Masataka, Vacuum generator with flow switching means for varying suction capacity through a plurality of nozzles.
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