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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
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DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0345554 (2008-12-29) |
등록번호 | US7993109 (2011-07-27) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 1 인용 특허 : 525 |
A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes vario
A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.
The invention claimed is: 1. A method of dispensing liquid from a pump, comprising:drawing a first volume of the liquid into a pumping chamber by causing a shape memory material to contract and move a piston to a first position of a plurality of positions;expelling a second volume of the liquid from
The invention claimed is: 1. A method of dispensing liquid from a pump, comprising:drawing a first volume of the liquid into a pumping chamber by causing a shape memory material to contract and move a piston to a first position of a plurality of positions;expelling a second volume of the liquid from the pumping chamber by causing the shape memory material to relax and move the piston to a second position of the plurality of positions;monitoring each of the plurality of positions of the piston using an encoding grid disposed on the piston, wherein a first location on the encoding grid indicates the first position of the plurality of positions of the piston and wherein a second location on the encoding grid indicates the second position of the plurality positions of the piston; andmeasuring a first time period, wherein the first time period is the time it takes to draw the first volume of liquid into the pumping chamber;comparing the first time period to a predetermined time period; anddetermining that the pump is not primed when the first time period is below the predetermined time period by a threshold amount of time.
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