Drug delivery device and a drug information detection device

• US 9,636,464 B1
• Filed: 08/01/2016
• Issued: 05/02/2017
• Est. Priority Date: 08/01/2016
• Status: Active Grant

• Current Assignee: Diabnext Limited
• Original Assignee: Innovative Precision Instruments Limited
• Inventors: Binier, Richard Jean Marie
• Primary Examiner(s): GILBERT, ANDREW M
• Application Number:
  US15/225,259
• Time in Patent Office: 274 Days
• CPC Class Codes: A61M 2005/2093 including concentration setting means
• CPC Class Codes: A61M 2005/2407 from the rear
• CPC Class Codes: A61M 2005/3125 specific display means, e.g. to indicate dose setting
• CPC Class Codes: A61M 2205/3584 using modem, internet or bluetooth
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/586 Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 5/20 Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically A61M5/142 , A61M5/46 take precedence; hypodermic projectiles F42B12/54
• CPC Class Codes: A61M 5/24 Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic ampoules or carpules A61J1/06
• CPC Class Codes: A61M 5/31551 including axial movement of dose setting member
• CPC Class Codes: A61M 5/31568 Means keeping track of the total dose administered, e.g. since the cartridge was inserted
• CPC Class Codes: A61M 5/3157 Means providing feedback signals when administration is completed A61M5/20 takes precedence
• CPC Class Codes: A61M 5/31573 Accuracy improving means
• CPC Class Codes: A61M 5/31586 performed by rotationally moving or pivoted actuator, e.g. an injection lever or handle
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/63 for local operation

Abstract

A drug delivery device which includes a first housing part, a second housing part, a button, a drug expelling mechanism, a graduated plate, a circuit board and a pressing rod. The button is connected to the first housing part. The drug expelling mechanism is disposed inside the second housing part, and includes a dose setting member which is rotatable and configured to set a drug dose to be expelled. The graduated plate is disposed inside the first housing part and connected to the button, and includes a first conductive element and a plurality of second conductive element disposed on a surface thereof. The plurality of second conductive elements are arranged in interval and the first conductive element is electrically connected to the plurality of second conductive elements. The circuit board is disposed inside the first housing part and connected to the dose setting member. The pressing rod is inserted through the graduated plate, and includes an end connected to the button and the other end movable on an axial direction to trigger the actuating switch.

Claims

1. A drug delivery device, comprising:

a first housing part;

a second housing part;

a button directly in contact with the first housing part;

a drug expelling mechanism disposed inside the second housing part, and

a dose setting member which is rotatable and configured to set a drug dose to be expelled;

a graduated plate disposed inside the first housing part, connected to the button, and comprising a first conductive element and a plurality of second conductive elements disposed on a surface thereof, wherein the plurality of second conductive elements are arranged in interval and the first conductive element is electrically connected to the plurality of second conductive elements;

a circuit board disposed inside the first housing part and connected to the dose setting member, and comprising;

a grounding element joined with the first conductive element;

a signal reading element rotatable along with rotation of the dose setting member, so as to contact one of the plurality of second conductive elements to read an electric signal;

a processing unit electrically connected to the grounding element and the signal reading element, and configured to determine a rotation amount of the dose setting member according to the electric signal, and

an actuating switch electrically connected to the processing unit and configured to drive the processing unit;

a pressing rod inserted through the graduated plate, and having an end directly in contact with the button and the other end directly in contact with the actuating switch and movable on an axial direction to trigger the actuating switch.

2. The drug delivery device according to claim 1, further comprising:

a base which is disposed inside the first housing part, wherein the base comprises;

a holding part, and

a hollow cylinder inserted through the holding part, wherein

the holding part is configured to hold the graduated plate.

3. The drug delivery device according to claim 2, further comprising a bearing which is mounted on an outer surface of the hollow cylinder.

4. The drug delivery device according to claim 1, further comprising a battery which is disposed inside the first housing part and electrically connected to an input terminal of the circuit board.

5. The drug delivery device according to claim 2, wherein the button comprises:

a hollow shaft configured to receive the pressing rod therein,

an outer surface of the hollow shaft configured to connect with an inner surface of the hollow cylinder, and

the pressing rod configured to be inserted through the hollow cylinder.

6. The drug delivery device according to claim 2, wherein the graduated plate has a hole which is in communication with the hollow cylinder;

the first conductive element is disposed around the hole, and

the plurality of the second conductive elements are arranged around the hole.

7. The drug delivery device according to claim 1, wherein the grounding element comprises a ring-shaped part and a plurality of pins connected to the ring-shaped part;

the ring-shaped part is joined with the first conductive element; and

the plurality of pins are disposed on the circuit board and electrically connected to the processing unit.

8. The drug delivery device according to claim 1, wherein the dose setting member comprises a dose sleeve and a dose knob which is fixed at an end of the dose sleeve.

9. The drug delivery device according to claim 8, further comprising:

a connection member configured to connect the dose setting member and the first housing part, wherein the connection member comprises;

a base part fixed with the first housing part;

a link rod inserted through the dose knob, and having an end connected to the base part and the other end plugged with a shaft of the dose sleeve, and

a plurality of hooks configured to join with the outer surface of the dose knob.

10. The drug delivery device according to claim 1, wherein the processing unit determines the drug dose to be expelled according to the rotation amount of the dose setting member and generates injection dose information.

11. The drug delivery device according to claim 10, wherein the circuit board comprises a wireless transmission unit configured to transmit the injection dose information to an external electronic device.

12. The drug delivery device according to claim 1, further comprising:

a light emitting diode configured to remain constant and blink.

13. A drug delivery detection device, comprising:

a first housing part;

a button directly in contact with the first housing part;

a graduated plate disposed inside the first housing part and connected to the button, and comprising a first conductive element and a plurality of second conductive elements disposed on a surface thereof, wherein the plurality of second conductive elements are arranged in interval and the first conductive element is electrically connected to the plurality of second conductive elements;

a circuit board disposed inside the first housing part, and comprising;

a grounding element joined with the first conductive element;

a signal reading element rotatable along with rotation of a dose setting member, so as to contact one of the plurality of second conductive elements to read an electric signal;

a processing unit electrically connected to the grounding element and the signal reading element, and configured to determine a rotation amount according to the electric signal, and

an actuating switch electrically connected to the processing unit and configured to drive the processing unit;

a pressing rod inserted through the graduated plate, and having an end directly in contact with the button and the other end directly in contact with the actuating switch and movable on an axial direction to trigger the actuating switch.

14. The drug delivery detection device according to claim 13, further comprising:

a base which is disposed inside the first housing part, wherein the base comprises;

a holding part and a hollow cylinder inserted through the holding part, wherein

the holding part is configured to hold the graduated plate.

15. The drug delivery detection device according to claim 14, further comprising a bearing which is mounted on an outer surface of the hollow cylinder.

16. The drug delivery detection device according to claim 13, further comprising a battery which is disposed inside the first housing part and electrically connected to an input terminal of the circuit board.

17. The drug delivery detection device according to claim 14, wherein the button comprises:

a hollow shaft configured to receive the pressing rod therein,

an outer surface of the hollow shaft configured to connect with an inner surface of the hollow cylinder, and

the pressing rod configured to be inserted through the hollow cylinder.

18. The drug delivery detection device according to claim 14, wherein the graduated plate has a hole which is in communication with the hollow cylinder;

the first conductive element is disposed around the hole, and

the plurality of the second conductive elements are arranged around the hole.

19. The drug delivery detection device according to claim 13, wherein the grounding element comprises a ring-shaped part and a plurality of pins connected to the ring-shaped part;

the ring-shaped part is joined with the first conductive element, and

the plurality of pins are disposed on the circuit board and electrically connected to the processing unit.

20. The drug delivery detection device according to claim 13, wherein the circuit board comprises a wireless transmission unit configured to transmit injection dose information to an external electronic device.

21. The drug delivery detection device according to claim 13, further comprising:

a light emitting diode configured to remain constant and blink.