Syringe-microinjection-type infusion device based on shape memory alloy driven and method thereof
A technology of micro-injection and memory alloy, applied in flow monitors, devices introduced into the body, etc., can solve problems such as high cost, complex system, and unstable system, and achieve energy saving, small size, and high energy conversion efficiency.
Inactive Publication Date: 2013-09-25
ZHEJIANG UNIV
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The invention discloses a syringe-microinjection-type infusion device based on shape memory alloy driven and a method thereof. A baffle, a first fixing plate and a second fixing plate are arranged on a base plate. Positioning holes are formed on a support plate and the baffle. Semi-cycle fixing grooves are formed on the first fixing plate and the second fixing plate. A stopping block is arranged in the middle of a push rod. Two sides of the stopping block are provided with a shape memory alloy spring and a reset spring. The end, with the reset spring mounted on, of the push rod penetrates the positioning hole on the baffle and contacts with a disposable syringe. The disposable syringe is placed in the semi-cycle fixing grooves of the first fixing plate and the second fixing plate, and is fixed on the first fixing plate and the second fixing plate through a first clamp and a second clamp. The end, with the shape memory alloy spring mounted on, of the push rod penetrates the positioning hole on the support plate which is fixed on the base plate through a bolt. The syringe-microinjection-type infusion device has the advantages that structure is simple, no noise is produced, size is small and the like, and is adaptable to micro-drug injection and the like.
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Property | Measurement | Unit |
Phase transition temperature | 55.0 ~ 90.0 | °C |
Outer diameter | 7.0 ~ 15.0 | mm |
Spring rate | 0.2 ~ 3.0 | N/mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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