Substance monitoring and control in human or animal bodies
First Claim
1. A hybrid open and closed loop diabetes management apparatus comprising:
- a sensor providing measurements of glucose level in a human or animal when the apparatus is operating in a closed-loop mode for a predetermined time interval;
an insulin pump for delivering both of;
a preset dose of insulin to said human or animal when the apparatus is operating in an open-loop mode, wherein said open-loop mode is a default setting of said apparatus, anda calculated insulin dose to said human or animal when the apparatus is operating in said closed-loop mode for said predetermined time interval; and
a processor which is adapted to perform the following steps;
receive said measurements of glucose level from said sensor;
calculate said calculated insulin dose to be delivered by said insulin pump in said closed-loop mode based on said received measurement;
assess the validity of the status of the apparatus; and
send a command to said insulin pump to enter said closed-loop mode for said predetermined time interval and deliver said calculated insulin dose during said predetermined time interval, dependent on said assessing step confirming that the status is valid,wherein said apparatus is configured to operate in said default open-loop mode wherein said insulin pump is configured to deliver said preset dose of insulin unless said processor sends said command to said insulin pump so that said apparatus is configured to operate in said closed-loop mode, andwherein the command sent to said insulin pump is valid only for said predetermined time interval so that if no further commands are sent to said insulin pump during said predetermined time interval, said insulin pump reverts to said open-loop mode delivering said preset dose of insulin at the end of said predetermined time interval.
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Accused Products
Abstract
Diabetes management apparatus comprising a sensor providing measurements of glucose level in a human or animal; an insulin pump for delivering a dose of insulin to said human or animal; and a processor. The processor is adapted to perform the following steps: receive said measurements of glucose level from said sensor; calculate a insulin dose to be delivered by said insulin pump based on said received measurement; assess the validity of the status of the apparatus; and send a command to said insulin pump to deliver said calculated insulin dose, dependent on said assessing step confirming that the status is valid. The insulin pump is configured to deliver a preset dose of insulin unless said processor sends a command to said insulin pump and wherein a said command sent to said insulin pump is valid only for a predetermined time interval so that if no further commands are sent to said insulin pump during said predetermined time interval, said insulin pump reverts to delivering said preset dose of insulin at the end of said predetermined time interval.
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Citations
15 Claims
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1. A hybrid open and closed loop diabetes management apparatus comprising:
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a sensor providing measurements of glucose level in a human or animal when the apparatus is operating in a closed-loop mode for a predetermined time interval; an insulin pump for delivering both of; a preset dose of insulin to said human or animal when the apparatus is operating in an open-loop mode, wherein said open-loop mode is a default setting of said apparatus, and a calculated insulin dose to said human or animal when the apparatus is operating in said closed-loop mode for said predetermined time interval; and a processor which is adapted to perform the following steps; receive said measurements of glucose level from said sensor; calculate said calculated insulin dose to be delivered by said insulin pump in said closed-loop mode based on said received measurement; assess the validity of the status of the apparatus; and send a command to said insulin pump to enter said closed-loop mode for said predetermined time interval and deliver said calculated insulin dose during said predetermined time interval, dependent on said assessing step confirming that the status is valid, wherein said apparatus is configured to operate in said default open-loop mode wherein said insulin pump is configured to deliver said preset dose of insulin unless said processor sends said command to said insulin pump so that said apparatus is configured to operate in said closed-loop mode, and wherein the command sent to said insulin pump is valid only for said predetermined time interval so that if no further commands are sent to said insulin pump during said predetermined time interval, said insulin pump reverts to said open-loop mode delivering said preset dose of insulin at the end of said predetermined time interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A computer-implemented method of controlling a hybrid open and closed loop diabetes management apparatus, the method comprising the steps of:
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delivering both of; a pre-set dose of insulin to a human or animal when the apparatus is operating in an open-loop mode, wherein said open-loop mode is a default setting of said apparatus, and a calculated insulin dose to said human or animal when the apparatus is operating in a closed-loop mode for a predetermined time interval; controlling said delivery of insulin in said closed-loop mode by performing the following steps; calculating said calculated insulin dose to be delivered in said closed-loop mode based on measurements of glucose levels in said human or animal; performing a status integrity check; issuing a command to enter said closed-loop mode for said predetermined time interval and deliver said calculated insulin dose during said predetermined time interval, dependent on confirmation that said status integrity check is valid; wherein the issued command is valid only for said predetermined time interval so that if no further commands are issued during said predetermined time interval, said insulin delivery reverts to said open-loop mode delivering said preset dose of insulin at the end of said predetermined time interval. - View Dependent Claims (15)
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Specification