System and method for delivering a target volume of fluid
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-001/28
A61M-039/22
A61M-005/168
출원번호
US-0297183
(2014-06-05)
등록번호
US-9713667
(2017-07-25)
발명자
/ 주소
Distler, Carl R.
Distler, Gregory L.
Demers, Jason A.
Spencer, Geoffrey P.
Bryant, Jr., Robert J.
출원인 / 주소
DEKA Products Limited Partnership
대리인 / 주소
Wolf, Greenfield & Sacks, P.C.
인용정보
피인용 횟수 :
2인용 특허 :
85
초록▼
A method for delivering a target volume of fluid to a destination is provided. The method includes delivering a first volume of fluid to the destination in increments each having approximately a first incremental volume, the first volume of fluid being less than the target volume and delivering a se
A method for delivering a target volume of fluid to a destination is provided. The method includes delivering a first volume of fluid to the destination in increments each having approximately a first incremental volume, the first volume of fluid being less than the target volume and delivering a second volume of fluid to the destination in increments each having approximately a second incremental volume, the second incremental volume being less than the first incremental volume, such that the sum of the first volume and the second volume is approximately equal to the target volume.
대표청구항▼
1. A pumping system for delivering a target volume of medical fluid, the system comprising: a flow-control system unit;a cassette mounted in the flow-control system unit;the cassette having: a first pump chamber configured to pump the medical fluid; anda second pump chamber configured to pump the me
1. A pumping system for delivering a target volume of medical fluid, the system comprising: a flow-control system unit;a cassette mounted in the flow-control system unit;the cassette having: a first pump chamber configured to pump the medical fluid; anda second pump chamber configured to pump the medical fluid; anda controller in operative communication with the cassette to control the first and second pump chambers, wherein the controller is configured to: deliver one or more strokes of the first and second pump chambers, each stroke delivering a first incremental volume, until a first volume of the medical fluid is delivered, anddeliver, using one of the first or second pump chambers, a second volume of the medical fluid in increments each having a second incremental volume, wherein the second incremental volume is less than the first incremental volume. 2. The system according to claim 1, wherein the second incremental volume is ⅓ of a finish volume. 3. The system according to claim 1, wherein the first volume approximately equals the target volume minus a finish volume. 4. The system according to claim 3, wherein the second incremental volume is less than the finish volume. 5. The system according to claim 4, wherein the second incremental volume is ⅓ of the finish volume. 6. The system according to claim 1, further comprising a volume measurement system configured to measure the medical fluid discharged from the first and second pump chambers. 7. The system according to claim 1, further comprising a volume measurement system configured to monitor delivery of the first incremental volume and the second incremental volume. 8. The system according to claim 1, further comprising a volume measurement system configured to monitor each of the second incremental volumes after delivery of each of the second incremental volumes and communicate the delivered volumes to the controller, wherein the controller is configured to determine if another second incremental volume should be delivered. 9. The system according to claim 1, wherein when a cumulative volume of the medical fluid delivered is greater than a predetermined threshold, the controller uses one of the first and second pump chambers to deliver a plurality of sub-stroke volumes until the target volume is delivered. 10. The system according to claim 1, wherein the first and second pump chambers repeat coordinated pumping action until a remaining amount of the medical fluid to be delivered is less than a predetermined threshold and thereby the first volume of the medical fluid has been delivered. 11. The system according to claim 10, wherein once the first volume of the medical fluid is delivered, the controller enters into a targeting mode. 12. The system according to claim 1, wherein the first and second pump chambers are configured to deliver the medical fluid to a patient. 13. The system according to claim 1, wherein the first and second pump chambers are configured to deliver the medical fluid to a heater bag. 14. The system according to claim 1, wherein the first and second pump chambers are configured to deliver the medical fluid to a reservoir. 15. The system according to claim 1, wherein the first and second pump chambers are configured to deliver the medical fluid to a fluid container. 16. The system according to claim 1, wherein the controller carries out a process control and monitoring function for a fluid control module. 17. The system according to claim 1, wherein the controller enters into a low fill mode in response to a user selecting a low volume delivery mode on a user interface. 18. The system according to claim 1, wherein when a final first incremental volume is delivered, operation of the most recently used pump chamber of the first and second pump chambers halts and a volume measurement is performed. 19. The system according to claim 1, wherein the other one of the first and second pump chambers delivers the second volume of the medical fluid in the second volume increments. 20. The system according to claim 1, wherein a midpoint of a target volume tolerance range is reached during a last delivery of the second incremental volume. 21. The system according to claim 1, wherein the one of the first and second pump chambers that delivers less than the first incremental volume during the delivery of the first volume is acted on in a targeting mode by the controller. 22. The system according to claim 21, wherein the pump chamber acted on in the targeting mode delivers one or more of the second incremental volumes. 23. The system according to claim 22, wherein the second incremental volume is less than or equal to 3 milliliters of fluid.
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