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-0297235
(2014-06-05)
등록번호
US-9561318
(2017-02-07)
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 :
3인용 특허 :
87
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 method for delivering a target volume of fluid to a destination, the method comprising: using a user interface configured to allow user selection of a mode from a plurality of user selectable modes, one of the user selectable modes being a low volume delivery mode which limits the target volume
1. A method for delivering a target volume of fluid to a destination, the method comprising: using a user interface configured to allow user selection of a mode from a plurality of user selectable modes, one of the user selectable modes being a low volume delivery mode which limits the target volume to a predetermined range;selecting, using the user interface, one of the plurality of user selectable modes;acting pneumatically, with a flow control module to direct fluid flow through a delivery set, the delivery set having one or more pumping chambers and valve arrangements for controlling fluid communication throughout the delivery set;controlling with a controller how much of the fluid is delivered to the destination, controlling the valve arrangement, and controlling the fluid control module, the controller executing the selected mode of the plurality of user selectable modes; andwherein upon selection of the low volume delivery mode, controlling with the controller, the flow control module such that the flow control module delivers a first volume of the fluid to the destination and a second volume of the fluid to the destination, the sum of the first volume of the fluid and the second volume of the fluid approximately equal to the target volume, and controlling with the controller the flow control module, such that the flow control module delivers the first volume of the fluid in increments each having approximately a first incremental volume, and delivers the second volume of the fluid to the destination in increments each having approximately a second incremental volume, the second incremental volume being less than the first incremental volume. 2. The method of claim 1, wherein the predetermined range is chosen from values between 40 ml and 1200 ml. 3. The method of claim 1, wherein the predetermined range is between 60 ml and 1000 ml. 4. The method of claim 1, wherein the delivery set includes at least a first pumping chamber and a second pumping chamber, each of the first pumping chamber and the second pumping chamber including a flexible membrane. 5. The method of claim 1, wherein the method further comprises using a control pad of the user interface to navigate and select one of the plurality of user selectable modes. 6. The method of claim 5, wherein the control pad includes a key or a keypad. 7. The method of claim 1, wherein the user interface includes a display. 8. The method of claim 1, wherein delivering the target volume of the fluid to the destination comprises delivering the target volume to a mammalian subject. 9. The method of claim 1, wherein delivering the target volume of the fluid to the destination comprises delivering the target volume to a peritoneal cavity of a mammalian subject. 10. The method of claim 1, wherein delivering the target volume of the fluid to the destination comprises delivering the target volume to an anatomical cavity of a mammalian subject. 11. A method for delivering a target volume of fluid to a destination, said method comprising: acting upon a delivery set via a flow control module to deliver the fluid;selecting via an interface a desired delivery mode from a plurality of delivery modes, the plurality of delivery modes including a low volume delivery mode;controlling with a controller the flow control module such that the flow control module behaves as prescribed by the desired delivery mode of the plurality of delivery modes; andwherein upon selection of the low volume delivery mode, controlling with the controller the flow control module, such that the flow control module delivers a first volume of the fluid to the destination and a second volume of the fluid to the destination, the sum of the first volume of the fluid and the second volume of the fluid approximately equal to the target volume, and controlling with the controller the flow control module, such that the flow control module delivers the first volume of the fluid in increments each having approximately a first incremental volume, and delivers the second volume of the fluid to the destination in increments each having approximately a second incremental volume, the second incremental volume being less than the first incremental volume. 12. The method of claim 11, wherein the acting upon the delivery set via the flow control module comprises pneumatically acting upon the deliver set via the flow control module. 13. The method of claim 11, wherein the flow control module includes at least one pressure reservoir. 14. The method of claim 13, wherein the flow control module includes at least a positive pressure reservoir and a negative pressure reservoir. 15. The method of claim 11, wherein the delivery set includes a cassette. 16. The method of claim 11, wherein the delivery set includes a first pumping chamber and a second pumping chamber. 17. The method of claim 16, wherein the acting upon the delivery set via the flow control module comprises acting upon both of the first pumping chamber and the second pumping chamber. 18. The method of claim 11, wherein the delivery set includes a valve arrangement for controlling fluid communication throughout the delivery set. 19. The method of claim 18, wherein the method further comprises controlling with the controller the valve arrangement. 20. The method of claim 11, wherein the method further comprises controlling with the controller, the volume of the fluid delivered to the destination. 21. The method of claim 11, wherein the method further comprises limiting the target volume to a predetermined range upon selection of the low volume delivery mode. 22. The method of claim 21, wherein limiting the target volume to the predetermined range comprises limiting the target volume to a range chosen from values between 40 ml and 1200 ml. 23. The method of claim 21, wherein limiting the target volume to the predetermined range comprises limiting the target volume to the range of 60 ml-1000 ml. 24. The method of claim 11, wherein the interface includes a control pad, the control pad configured for use by a user to navigate and select one of the plurality of selectable modes. 25. The method of claim 24, wherein the control pad includes a key or keypad. 26. The method of claim 11, wherein the interface includes a display. 27. The method of claim 11, wherein the fluid is peritoneal dialysis fluid. 28. The method of claim 11, wherein the method further comprises measuring volume delivered with a volume measurement system. 29. The method of claim 28, wherein the measuring volume delivered comprises measuring volume delivered with a volume measurement system including a pressure transducer. 30. A method for delivering a target volume of fluid to a destination, the method comprising: acting pneumatically upon a delivery set via a flow control module to direct fluid flow through the delivery set, the delivery set having at least a first pumping chamber having a first chamber volume, a second pumping chamber having a second chamber volume, and valve arrangement for controlling fluid communication throughout the delivery set;controlling with a controller how much of the fluid is delivered to the destination, the valve arrangement, the flow control module, the controller configured to operate in:a first mode commanding the flow control module to conduct a number of pumping strokes to pump the fluid from the first or the second pumping chamber, each pumping stroke delivering approximately the respective volume of the first pumping chamber or the second pumping chamber; anda targeting mode, the targeting mode commanding the flow control module to perform one or more targeting strokes, each targeting stroke delivering a predetermined portion of the respective volume of the first pumping chamber or the second pumping chamber;wherein the predetermined portion delivered by each targeting stroke is less than the volume of the first pumping chamber or the second pumping chamber delivered with a pumping stroke. 31. The method of claim 30, wherein the method further comprises measuring volume delivered from the first pumping chamber and the second pumping chamber with a volume measurement system. 32. The method of claim 31, wherein measuring volume delivered from the first pumping chamber and the second pumping chamber comprises measuring volume delivered from the first pumping chamber and the second pumping chamber with the volume measurement system including a pressure transducer. 33. The method of claim 30, wherein the flow control module includes one or more pressure reservoir. 34. The method of claim 33, wherein the flow control module includes at least a positive pressure reservoir and a negative pressure reservoir. 35. The method of claim 30, wherein the destination is a mammalian subject or fluid containing bag. 36. The method of claim 35, wherein the destination is an anatomical cavity of the mammalian subject. 37. The method of claim 36, wherein the anatomical cavity is the peritoneal cavity. 38. The method of claim 30, wherein the method further comprises controlling the flow control module to perform the number of pumping strokes such that each of the first pumping chamber and the second pumping chamber fill and deliver in sync when the controller is operating in the first mode. 39. The method of claim 30, wherein the method further comprises monitoring with the controller a cumulative delivery volume and switching from the first mode to the targeting mode upon determination that the cumulative volume exhibits a predetermined characteristic. 40. The method of claim 39, wherein the method further comprises separately measuring volume pumped through each of the first pumping chamber and the second pumping chamber. 41. The method of claim 40, wherein the method further comprises, beginning to perform targeting strokes, with the flow control module, on whichever of the first or the second pumping chamber has delivered the least amount of the fluid upon the determination that the cumulative volume exhibits the predetermined characteristic. 42. The method of claim 39, wherein the predetermined characteristic of the cumulative volume is a characteristic in which the cumulative volume is within a predetermined range of the target volume. 43. The method of claim 30, wherein the first pumping chamber and the second pumping chamber each comprise a flexible membrane. 44. The method of claim 30, wherein the delivering the target volume comprises delivering the target volume using a peritoneal dialysis system. 45. The method of claim 30, wherein the method further comprises measuring volume delivered from the first pumping chamber and the second pumping chamber with a volume measuring system using a pressure transducer. 46. A method for delivering a target volume of fluid to a destination, the method comprising: acting on a delivery set via a flow control module to deliver the fluid;controlling with a controller the fluid control module, the controller configured to operate in:a first mode commanding the flow control module to conduct a number of pumping strokes to pump the fluid from a first pumping chamber or a second pumping chamber of the delivery set, each pumping chamber having a respective volume, each pumping stroke delivering approximately the respective volume of the first pumping chamber or the second pumping chamber, monitoring a cumulative delivery volume, and switching to a targeting mode upon determination that the cumulative volume exhibits a predetermined characteristic; anda targeting mode commanding the flow control module to perform one or more targeting strokes until the target volume has been approximately delivered when the controller is operating in the targeting mode, each targeting stroke delivering a predetermined portion of the respective volume of the first pumping chamber or the second pumping chamber, the predetermined portion delivered by each targeting stroke being less than the volume delivered with a pumping stroke. 47. The method of claim 46, wherein performing the one or more targeting stroke comprises performing the one or more targeting strokes on one of the first pumping chamber and the second pumping chamber. 48. The method of claim 47, wherein the one pumping chamber is the first pumping chamber if it has delivered less of the fluid than the second pumping chamber, or is the second pumping chamber if it has delivered less of the fluid than the first pumping chamber. 49. The method of claim 46, wherein the predetermined characteristic of the cumulative volume is a characteristic in which the cumulative volume is within a predetermined range of the target volume. 50. The method of claim 46, wherein the cumulative volume delivered by the one or more targeting strokes is less than the cumulative volume delivered by the number of pumping strokes. 51. The method of claim 46, wherein acting upon the delivery set via the flow control module to deliver the fluid comprises pneumatically acting upon the delivery set. 52. The method of claim 46, wherein the flow control module includes a pressure reservoir. 53. The method of claim 52, wherein the method further comprises controlling with the controller a valve arrangement. 54. The method of claim 46, wherein the flow control module includes a positive pressure reservoir and a negative pressure reservoir. 55. The method of claim 46, wherein the method further comprises measuring volume delivered from the first pumping chamber and the second pumping chamber via a volume measurement system. 56. The method of claim 55, wherein the volume measurement system comprises measuring volume delivered from the first pumping chamber and second pumping chamber using one or more pressure transducers. 57. The method of claim 46, wherein the method further comprises conducting the number of pumping strokes such that each of the first pumping chamber and the second pumping chamber fill and deliver in sync when the controller is in the first mode. 58. The method of claim 46, wherein the delivery set includes a valve arrangement for controlling fluid communication throughout the delivery set. 59. The method of claim 46, wherein the method further comprises controlling with the controller how much of the fluid is delivered to the destination.
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