최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0345545 (2008-12-29) |
등록번호 | US8047811 (2011-10-17) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 18 인용 특허 : 552 |
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.
It is claimed: 1. A pumping system comprising:a chamber;a piston within the chamber;a shape memory element within the chamber that changes length when a current flows through the shape memory element,the shape memory element moving the piston between a first physical limit at a proximal end of the c
It is claimed: 1. A pumping system comprising:a chamber;a piston within the chamber;a shape memory element within the chamber that changes length when a current flows through the shape memory element,the shape memory element moving the piston between a first physical limit at a proximal end of the chamber and second physical limit at a distal end of the chamber, such that when the piston is at the first physical limit the chamber is filled with fluid and when the piston is at the second physical limit the chamber is discharged of fluid;a first switch at the first physical limit that indicates the piston is in contact with the first physical limit; anda processor programmed to measure a first time period, wherein the first time period is the time it takes for the piston to move between the proximal end and the distal end, to compare the first time period to a predetermined time period, and to determine that the pumping system is not primed when the first time period is below the predetermined time period by a threshold amount of time.
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