Bilateral-driven medical device with infusion and detection integrated

Patent metadata

Field	Value
Publication number	US-12496396-B2
Application number	US-202017620078-A
Country	US
Kind code	B2
Filing date	Jun 1, 2020
Priority date	Jul 19, 2019
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

The invention discloses a bilateral-driven medical device with infusion and detection integrated, comprising: drug infusion unit; program unit comprising 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, the program unit controls whether the drug infusion unit delivers drugs; and an infusion cannula provided with at least two detecting electrodes, the infusion cannula is the drug infusion channel, the electrodes are disposed on the cannulawall. It takes only one insertion to perform both analyte detection and drug infusion.

First claim

The invention claimed is:

1 . A bilateral-driven medical device with infusion and detection integrated, 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 at least one drug storage unit, forward;

a driving unit cooperating with the driving wheel, the driving unit includes at least two driving portions, the driving unit pivots, around a pivot shaft, in different multiple pivot modes, thus driving the at least two driving portions, in different directions, to push the wheel teeth to rotate the driving wheel; a power unit connected to the driving unit, the power unit outputs two forces in different directions on the driving unit, making the driving unit have the multiple pivot modes; a program unit comprising an input end and an output end, and the input end comprises a plurality of electrically connective regions for receiving signals of an analyte data in a body fluid, after the output end is electrically connected to the power unit, according to received signals of the 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 a drug; and an infusion cannula provided with at least two electrodes, the infusion cannula is a drug infusion channel, the at least two electrodes are disposed on a cannula wall, when the infusion cannula is installed to a working position, the infusion cannula is connected with the drug infusion unit, the drug is then capable of being injected into a body through the infusion cannula, and the at least two electrodes are electrically connected to the plurality of electrically connective regions respectively, inputting the signals of the analyte data in the body fluid to the program unit, wherein the infusion cannula includes an inner layer cannula and at least one outer layer cannula, and the at least one outer layer cannula is disposed outside the inner layer cannula, and the inner layer cannula is used for drug infusion, wherein at least one of the at least two electrodes is provided between an outer wall of the inner layer cannula and an outermost one of the at least one outer layer cannula, wherein when the infusion cannula is installed to the working position, an electrode among the at least one of the at least two electrodes located on an outer surface of the cannula wall of the inner layer cannula is covered in part by the at least one outer layer cannula and exposed in part in a subcutaneous tissue fluid, wherein the different multiple pivot modes of the driving unit each includes different multiple pivot amplitudes and different multiple pivot rates, wherein the driving wheel includes at least two sub-wheels, the pivot shaft is disposed between the at least two sub-wheels, the at least two driving portions are respectively provided on each side of the driving unit, and each sub-wheel is cooperated with each driving portion, wherein the at least two driving portions on one side of the driving unit are disposed up and down or left and right, when the driving unit pushes the wheel teeth to rotate the driving wheel, the at least two driving portions on each side of the driving unit respectively push different teeth on the wheel teeth.

2 . The bilateral-driven medical device with infusion and detection integrated of claim 1 , wherein:
the at least two electrodes are located on the outer surface of the cannula wall, and when the infusion cannula is installed to the working position, the at least two electrodes are directly electrically connected to the plurality of electrically connective regions, respectively.

3 . The bilateral-driven medical device with infusion and detection integrated of claim 2 , wherein:
the at least two electrodes are located on a subcutaneous part of the outer surface of the cannula wall, and the outer surface of the cannula wall is further provided with electrode leads electrically connected to the at least two electrodes, and when the infusion cannula is installed to the working position, the electrode leads are electrically connected to the plurality of electrically connective regions, respectively.

4 . The bilateral-driven medical device with infusion and detection integrated of claim 1 , wherein:
the electrode among the at least one of the at least two electrodes located on the outer surface of the cannula wall of the inner layer cannula is covered in part by the at least one outer layer cannula and configured to be exposed in part in the subcutaneous tissue fluid, and a material of the at least one outer layer cannula walls is a permeable membrane or a semi-permeable membrane.

5 . The bilateral-driven medical device with infusion and detection integrated of claim 1 , wherein:
the at least two electrodes include a working electrode and an auxiliary electrode, and the number of the working electrode and the auxiliary electrode is one or more, respectively.

6 . The bilateral-driven medical device with infusion and detection integrated of claim 5 , wherein:
the auxiliary electrode is a counter electrode, or the auxiliary electrode includes the counter electrode and a reference electrode.

7 . The bilateral-driven medical device with infusion and detection integrated of claim 6 , wherein:
the at least two or more electrodes form one or more electrode combination, each electrode combination comprising the working electrode and the auxiliary electrode, the program unit choosing the one or more electrode combination to detect the analyte data in the body fluid.

8 . The bilateral-driven medical device with infusion and detection integrated of claim 1 , wherein:
the input end is an elastic member, and the elastic member comprises one of or a combination of a conductive strip, an oriented conductive silica gel, a conductive ring and a conductive ball.

9 . The bilateral-driven medical device with infusion and detection integrated of claim 1 , wherein:
the drug infusion unit includes a plurality of infusion subunits, the program unit has a plurality of output ends, the plurality of infusion subunits being electrically connected to the plurality of output ends, respectively, and the program unit controlling whether each infusion subunit delivers the drug.

10 . The bilateral-driven medical device with infusion and detection integrated of claim 1 , wherein:
the bilateral-driven medical device with infusion and detection integrated is composed of a plurality of parts, the drug infusion unit and the program unit are arranged in different parts, and the different parts are connected by waterproof plugs.

Assignees

• Medtrum Tech Inc

Inventors

• Yang Cuijun

Classifications

• A61M5/172

  electrical or electronic {(A61M5/16804, A61M5/16831 take precedence)} · CPC title

• A61F2/022

  Artificial gland structures using bioreactors (hemodialysis A61M1/16; hemofiltration A61M1/34; other extracorporeal blood treatment A61M1/36) · CPC title

• A61M2205/502

  User interfaces, e.g. screens or keyboards · CPC title

• G16H20/17

  delivered via infusion or injection · CPC title

• A61M5/1454

  spring-actuated, e.g. by a clockwork · CPC title