Methods for providing sensor site rotation feedback and related infusion devices and systems
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-005/172
A61B-005/145
A61M-005/168
G06F-019/00
G16H-040/63
G16H-010/60
G16H-050/70
G16H-020/17
A61B-005/00
A61M-005/142
출원번호
US-0240720
(2016-08-18)
등록번호
US-10201657
(2019-02-12)
발명자
/ 주소
Parikh, Neha J.
Gottlieb, Rebecca K.
Grosman, Benyamin
Roy, Anirban
Wu, Di
출원인 / 주소
Medtronic MiniMed, Inc.
대리인 / 주소
Lorenz & Kopf, LLP
인용정보
피인용 횟수 :
0인용 특허 :
197
초록▼
Infusion systems, infusion devices, and related operating methods are provided. An exemplary method of operating an infusion device to deliver fluid to a body of a user involves identifying a current site location on the body of the user associated with a sensing arrangement providing sensed measure
Infusion systems, infusion devices, and related operating methods are provided. An exemplary method of operating an infusion device to deliver fluid to a body of a user involves identifying a current site location on the body of the user associated with a sensing arrangement providing sensed measurements of a physiological condition in the body of the user at the current site location, determining one or more performance metrics associated with the current site location corresponding to operation of the infusion device to deliver the fluid in response to the sensed measurements, and providing sensor site feedback in a manner that is influenced by the one or more performance metrics. In one or more embodiments, the sensor site feedback includes recommended sensor site locations for rotation or replacement of the sensing arrangement determined based on historical data associated with the user for different sensor site locations.
대표청구항▼
1. A method of operating an infusion device to deliver a fluid influencing a physiological condition to a body of a user, the method comprising: obtaining one or more reference measurements of the physiological condition in the body of the user;determining a lag associated with a sensing arrangement
1. A method of operating an infusion device to deliver a fluid influencing a physiological condition to a body of a user, the method comprising: obtaining one or more reference measurements of the physiological condition in the body of the user;determining a lag associated with a sensing arrangement providing sensed measurements of the physiological condition in the body of the user based on a relationship between the one or more reference measurements and one or more of the sensed measurements;identifying a current site location on the body of the user associated with the sensing arrangement from among a plurality of site locations based on the lag;determining one or more performance metrics associated with the current site location corresponding to operation of the infusion device to deliver the fluid in response to the sensed measurements; andproviding sensor site feedback in a manner that is influenced by the one or more performance metrics. 2. The method of claim 1, the current site location comprising one of the plurality of site locations, the method further comprising: maintaining an association between the lag and the one of the plurality of site locations; andthereafter: obtaining one or more subsequent reference measurements of the physiological condition in the body of the user;determining a second lag associated with a second sensing arrangement providing subsequent sensed measurements of the physiological condition in the body of the user based on a relationship between the one or more subsequent reference measurements and the subsequent sensed measurements; andidentifying a site location associated with the second sensing arrangement as the one of the plurality of site locations based on the second lag, the lag, and the association between the lag and the one of the plurality of site locations. 3. The method of claim 1, wherein determining the lag comprises: generating a plurality of time shifted representations of the one or more of the sensed measurements having different amounts of time shifting;determining a correlation metric for each of the plurality of time shifted representations based on the one or more reference measurements; andidentifying the lag as an amount of time shifting associated with a respective one of the plurality of time shifted representations having a highest value for the correlation metric. 4. The method of claim 1, further comprising autonomously operating the infusion device to regulate the physiological condition based on the sensed measurements and a target value for the physiological condition in the body of the user, wherein the one or more performance metrics are determined based on the sensed measurements during the autonomous operation. 5. The method of claim 1, wherein providing the sensor site feedback comprises generating a graphical representation of one or more recommended site locations different from the current site location. 6. The method of claim 5, further comprising determining the one or more recommended site locations based on historical data associated with each of a plurality of site locations. 7. The method of claim 6, further comprising determining the one or more recommended site locations based on site recommendation criteria associated with the user. 8. The method of claim 1, further comprising: determining a calibration factor associated with the sensed measurements based on the one or more reference measurements in a manner that is influenced by the lag; andautonomously operating the infusion device to regulate the physiological condition based on the sensed measurements, the calibration factor, and a target value for the physiological condition in the body of the user. 9. The method of claim 1, further comprising: adjusting one or more control parameters in a manner that is influenced by the lag; andautonomously operating the infusion device to regulate the physiological condition based on the sensed measurements, the one or more control parameters, and a target value for the physiological condition in the body of the user. 10. The method of claim 1, further comprising: receiving, by a server coupled to a network, the sensed measurements from one of the sensing arrangement and the infusion device via the network; anddetermining, by the server, one or more recommended site locations based on historical data associated with the user stored in a database, wherein: identifying the current site location comprises the server identifying the current site location based on the sensed measurements and the historical data associated with the user stored in the database; andproviding the sensor site feedback comprises the server generating, on a client device coupled to the server via the network, a graphical indication of the one or more recommended site locations in response to the one or more performance metrics failing to satisfy a threshold. 11. The method of claim 1, further comprising receiving, by a server coupled to a network, the sensed measurements from one of the sensing arrangement and the infusion device via the network, wherein: identifying the current site location comprises the server identifying the current site location based on the sensed measurements and historical data associated with the user stored in a database; andproviding the sensor site feedback comprises the server generating, on a client device coupled to the server via the network, a graphical representation of the one or more performance metrics associated with the current site location. 12. A computer-readable medium having computer-executable instructions stored thereon that, when executed by a processing system of an electronic device, cause the processing system to perform the method of claim 1. 13. An infusion system comprising: a sensing arrangement to obtain sensed measurement values for a physiological condition from a body of a user;an infusion device including: an actuation arrangement operable to deliver fluid influencing the physiological condition to the body of the user;a user interface; anda control system coupled to the actuation arrangement and the sensing arrangement to: autonomously operate the actuation arrangement to deliver the fluid based on the sensed measurement values;obtain one or more reference measurements of the physiological condition in the body of the user;determine a lag associated with the sensing arrangement based on a relationship between the one or more reference measurements and one or more of the sensed measurement values;identify a current site location on the body of the user associated with the sensing arrangement from among a plurality of site locations based on the lag;determine one or more performance metrics associated with the current site location based on the sensed measurement values; andprovide sensor site feedback via the user interface in a manner that is influenced by the one or more performance metrics. 14. The infusion system of claim 13, wherein the control system updates a calibration factor associated with the sensed measurement values in a manner that is influenced by the lag. 15. The infusion system of claim 13, wherein the sensor site feedback comprises generating a graphical representation of one or more recommended site locations different from the current site location. 16. A system comprising: a sensing arrangement to obtain sensed measurement values for a physiological condition from a body of a user;an infusion device communicatively coupled to the sensing arrangement and including an actuation arrangement operable to deliver fluid influencing the physiological condition to the body of the user in response to the sensed measurement values;a database to maintain historical data associated with the user; anda server coupled to the database and a network to: obtain one or more reference measurements of the physiological condition in the body of the user;determine a lag associated with the sensing arrangement based on a relationship between the one or more reference measurements and one or more of the sensed measurement values:identify a current site location on the body of the user associated with the sensing arrangement from among a plurality of site locations based on the lag and one or more of the sensed measurement values and the historical data;determine one or more performance metrics associated with the current site location based on the sensed measurement values associated with autonomous operation of the infusion device to deliver the fluid; andprovide site rotation feedback in a manner that is influenced by the one or more performance metrics and the historical data. 17. The system of claim 16, wherein the site rotation feedback comprises a graphical representation of one or more recommended site locations different from the current site location presented on a client device coupled to the server via the network in response to the one or more performance metrics failing to satisfy a threshold, wherein the server determines the one or more recommended site locations based on the historical data. 18. The system of claim 16, the historical data including sensor lags associated with respective ones of a plurality of site locations, wherein the server obtains one or more reference measurements of the physiological condition in the body of the user, determines a current lag associated with the sensing arrangement based on a relationship between the one or more reference measurements and the one or more of the sensed measurement values, and identifies the current site location as one of the plurality of site locations based on a relationship between the current lag and the sensor lags.
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