Fluid component analysis systems and methods for glucose monitoring and control
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-005/168
출원번호
US-0174610
(2011-06-30)
등록번호
US-8449524
(2013-05-28)
발명자
/ 주소
Braig, James R.
Keenan, Richard
Rule, Peter
Rivas, Gil
Seetharaman, Mahesh
출원인 / 주소
Optiscan Biomedical Corporation
대리인 / 주소
Knobbe Martens Olson & Bear, LLP
인용정보
피인용 횟수 :
19인용 특허 :
165
초록▼
Disclosed are methods and apparatus for determining analyte concentration in a sample such as bodily fluid. Systems and methods disclosed herein can also include a treatment dosing system to infuse or inject a treatment drug (e.g., insulin or glucose) and provide glycemic control. The dose of the tr
Disclosed are methods and apparatus for determining analyte concentration in a sample such as bodily fluid. Systems and methods disclosed herein can also include a treatment dosing system to infuse or inject a treatment drug (e.g., insulin or glucose) and provide glycemic control. The dose of the treatment drug may be based on the concentration of the analyte or the average value for the concentration of the analyte and/or the rate of change of the value of the concentration of the analyte.
대표청구항▼
1. A method of analyzing an analyte in the body fluid of a patient, the method comprising: placing a body fluid analyzer in fluid communication with the body fluid in the patient;transporting a sample of the body fluid toward the body fluid analyzer through a tube;with the body fluid analyzer, measu
1. A method of analyzing an analyte in the body fluid of a patient, the method comprising: placing a body fluid analyzer in fluid communication with the body fluid in the patient;transporting a sample of the body fluid toward the body fluid analyzer through a tube;with the body fluid analyzer, measuring at least one characteristic of at least one analyte in the body fluid and determining the concentration of the at least one analyte in the body fluid from the at least one measured characteristic;with a treatment dosing system in communication with the body fluid analyzer, automatically determining a recommended dose for an infusion fluid based at least in part on one or more determinations by the body fluid analyzer of the concentration of the analyte and on a treatment dosing protocol stored in a computer memory;infusing a dose of the infusion fluid from an infusion source through the same tube toward the patient, wherein the dose of the infusion fluid is based at least in part on the recommended dose determined by the treatment dosing system; andwith the treatment dosing system, automatically stopping the flow of the infusion fluid to the patient if one or more of the following conditions are met: the concentration of the at least one analyte is below a threshold level; anda trend in the concentration of the at least one analyte indicates that the concentration will soon fall below the threshold level. 2. The method of claim 1, wherein the body fluid analyzer comprises a spectroscopic analyzer. 3. The method of claim 1, wherein the at least one analyte comprises glucose or dextrose and the infusion fluid comprises insulin. 4. The method of claim 3, wherein the treatment dosing system comprises a tight glycemic control protocol. 5. The method of claim 1, further comprising providing a user interface indicating information related to the recommended dose, an actual dose of the infusion fluid, or both. 6. The method of claim 5, further comprising adjusting the actual dose of the infusion fluid in response to user input received via the user interface. 7. The method of claim 1, wherein placing a body fluid analyzer in fluid communication with the body fluid in the patient further comprises: providing a fluid transport network including the tube having a patient end; andwith the fluid transport network, establishing fluid communication with the body fluid in the patient through the patient end, the body fluid analyzer accessible via the fluid transport network; andwherein transporting a sample of the body fluid toward the body fluid analyzer comprises drawing a sample of the body fluid from the patient end of the tube toward the body fluid analyzer. 8. The method of claim 1, further comprising varying a pump rate of at least one pump system to infuse the dose of infusion fluid toward the patient. 9. The method of claim 1, further comprising infusing a portion of the infusion fluid toward the patient via a basal delivery system at a basal rate, and infusing a portion of the infusion fluid toward the patient via a bolus injection system as a bolus injection. 10. The method of claim 9, wherein the basal delivery system and the bolus injection system both infuse the infusion fluid through the same intravenous access line. 11. The method of claim 9, wherein the basal delivery system and the bolus injection system both infuse the infusion fluid through a patient end, and wherein transporting a sample of the body fluid toward the body fluid analyzer comprises drawing a sample of the body fluid through the patient end. 12. The method of claim 9, wherein the basal delivery system and the bolus injection system are controlled by a single treatment pump having a variable pump rate. 13. The method of claim 1, wherein the body fluid analyzer comprise an electro-chemical analyzer. 14. The method of claim 1, further comprising: accessing a measurement database;calculating an average concentration of the at least one analyte based on one or more determinations made by the body fluid analyzer of the concentration of the at least one analyte; anddetermining the recommended dose for the infusion fluid based on the average concentration of the at least one analyte. 15. The method of claim 1, further comprising: accessing a measurement database;calculating a rate of change in the concentration of the at least one analyte based on one or more determinations made by the body fluid analyzer of the concentration of the at least one analyte; anddetermining the recommended dose for the infusion fluid based on the rate of change of the concentration of the at least one analyte. 16. The method of claim 1, further comprising providing at least one pump system having a sampling mode in which the at least one pump system is operable to transport the sample of the body fluid toward the body fluid analyzer and an infusion mode in which the at least one pump system is operable to infuse the infusion fluid toward the patient. 17. The method of claim 1, further comprising transporting a sample of the body fluid toward the body fluid analyzer at draw intervals of 30 minutes or less. 18. The method of claim 1, further comprising transporting a sample of the body fluid toward the body fluid analyzer at draw intervals of 15 minutes or less. 19. The method of claim 1, wherein the infusion source is located within a short distance of the patient to allow infusion of the dose of the infusion fluid before a next sample is drawn. 20. The method of claim 1, further comprising: with the body fluid analyzer, determining the concentration of the at least one analyte in a second sample of body fluid;calculating a rate of change of the concentration of the at least one analyte, andautomatically stopping the flow of the infusion fluid to the patient if the rate of change of the concentration of the analyte is below a certain prescribed value and the concentration of the at least one analyte in the first or second sample is close to the threshold level.
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