US 12,390,590 B2
Integrated artificial pancreas with multiple infusion modes
Cuijun Yang, Shanghai (CN)
Assigned to MEDTRUM TECHNOLOGIES INC., Shanghai (CN)
Appl. No. 17/924,363
Filed by MEDTRUM TECHNOLOGIES INC., Shanghai (CN)
PCT Filed May 31, 2021, PCT No. PCT/CN2021/097160
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/228270, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. PCT/CN2020/093705 (WO), filed on Jun. 1, 2020; and application No. PCT/CN2020/097317 (WO), filed on Jun. 22, 2020.
Prior Publication US 2023/0320835 A1, Oct. 12, 2023
Int. Cl. A61M 5/172 (2006.01); A61B 5/00 (2006.01); A61B 5/145 (2006.01); A61B 5/1473 (2006.01); A61F 2/02 (2006.01); A61M 5/14 (2006.01); A61M 5/142 (2006.01); A61M 5/145 (2006.01); A61M 5/158 (2006.01); A61M 5/20 (2006.01); G16H 20/17 (2018.01); G16H 40/63 (2018.01)
CPC A61M 5/1723 (2013.01) [A61B 5/14532 (2013.01); A61B 5/1473 (2013.01); A61B 5/4839 (2013.01); A61F 2/022 (2013.01); A61M 5/14236 (2013.01); A61M 5/14244 (2013.01); A61M 5/14248 (2013.01); A61M 5/1452 (2013.01); A61M 5/1454 (2013.01); A61M 5/158 (2013.01); A61M 5/172 (2013.01); G16H 20/17 (2018.01); G16H 40/63 (2018.01); A61B 2560/0209 (2013.01); A61B 2562/043 (2013.01); A61M 5/1413 (2013.01); A61M 2005/14208 (2013.01); A61M 2005/14252 (2013.01); A61M 2005/14268 (2013.01); A61M 2005/14506 (2013.01); A61M 2005/1585 (2013.01); A61M 2005/1726 (2013.01); A61M 2005/2006 (2013.01); A61M 2205/0216 (2013.01); A61M 2205/0233 (2013.01); A61M 2205/0266 (2013.01); A61M 2205/33 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3327 (2013.01); A61M 2205/3553 (2013.01); A61M 2205/3576 (2013.01); A61M 2205/3592 (2013.01); A61M 2205/50 (2013.01); A61M 2205/502 (2013.01); A61M 2209/088 (2013.01); A61M 2230/005 (2013.01); A61M 2230/20 (2013.01); A61M 2230/201 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An integrated artificial pancreas with multiple infusion modes, comprising:
a drug infusion unit, including:
at least one drug storage unit;
a screw connected to a piston and a driving wheel provided with wheel teeth, respectively, the driving wheel drives the screw to move by rotation, pushing the piston, provided in the drug storage unit, forward;
a driving unit at least includes a first driving unit and a second driving unit that cooperate with each other, the second driving unit drives the screw forward, wherein the driving wheel is part of the second driving unit;
a power unit connected to the first driving unit, wherein the power unit comprises an advancing member and a reset member, wherein the advancing member is configured to apply a first force in a first direction to the first driving unit and wherein the reset member is configured to apply a second force in a second direction to the first driving unit, wherein the first force and the second force are in different directions, and the first force and the second force make the first driving unit have a variety of different operating modes, thereby making the infusion unit have various different infusion increments or infusion rates;
a program unit including input end and output end, and the input end comprises a plurality of electrically connective regions for receiving signals of analyte data in the body fluid, after the output end is electrically connected to the power unit, according to the received signals of analyte data in the body fluid, the program unit controls the pivot modes of the driving unit to implement whether the drug infusion unit delivers the drug; and
an infusion cannula provided with at least two electrodes, the infusion cannula is the drug infusion channel, the electrodes are disposed on the cannula wall, when the infusion cannula is installed to a working position, the infusion cannula is connected with the drug infusion unit, the drug can then be injected into the body through the infusion cannula, and the different electrodes are electrically connected to different electrically connective regions respectively, inputting signal of analyte data in the body fluid to the program unit.