Injection device comprising a pen

• US 6,482,185 B1
• Filed: 03/17/2000
• Issued: 11/19/2002
• Est. Priority Date: 03/17/1999
• Status: Expired due to Term

• Current Assignee: B Braun Melsungen AG (B. Braun Holding GmbH & Co. KG)
• Original Assignee: B Braun Melsungen AG (B. Braun Holding GmbH & Co. KG)
• Inventors: Hartmann, Michael
• Primary Examiner(s): Michalsky, Gerald A.
• Application Number:
  US09/528,443
• Time in Patent Office: 977 Days
• Field of Search: 604/189, 604/207, 604/208, 604/211
• US Class Current: 604/189
• CPC Class Codes: A61M 2005/3125 specific display means, e.g. to indicate dose setting
• CPC Class Codes: A61M 2005/3126 Specific display means related to dosing
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• 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 5/31525 Dosing burettes, pipettes B01L3/02
• CPC Class Codes: A61M 5/31546 Electrically operated dose setting, e.g. input via touch screen or plus/minus buttons
• CPC Class Codes: A61M 5/31553 without axial movement of dose setting member
• CPC Class Codes: G01F 11/027 of the syringe type
• CPC Class Codes: G01F 11/029 provided with electric controlling means G01F11/022 and G01F11/024 take precedence

Abstract

An injection device comprises a pen (10) with a syringe (13) to be emptied. The dose expelled from the syringe is set by means of a dose setting device (17). For people with an impaired vision, the setting of the dose is rather difficult. Therefore, an external display apparatus (30) is provided that may be set to the pen (10). Via contacts (21) and counter contacts (34), information about the dose is transmitted to the display apparatus (30) and shown on a large display (32).

Claims

1. An injection device comprising in combination a pen (10, 10a, 10b, 10c) having a pin-shaped housing (11) accommodating a syringe (13) and an external display apparatus (30, 30a, 30b, 30c);

means (17, 50) for setting a predetermined volume of liquid which is to be expelled from said syringe (13) by a single injection dose, means (21, 34;

43, 44) responsive to said setting means (17, 50) for transmitting the set single injection predetermined volume dose from one of the pen (10, 10b and 10c) and the external display apparatus (30, 30a, 30b, 30c) to the respective external display apparatus (30, 30a, 30b, 30c) and the pen (10, 10b and 10c), and said external display apparatus (30, 30a, 30b, 30c) including means (32) for displaying the set single injection predetermined volume dose as a larger readily read display (32).

2. The injection device as defined in claim 1 including means (35) for measuring blood sugar, and said setting means (50) is responsive to said blood sugar measuring means (35).

3. The injection device as defined in claim 1 including means (35) for measuring blood sugar, said setting means (50) is responsive to said blood sugar measuring means (35), and said transmitting means (50) transmits the single injection predetermined volume dose from said external display apparatus (30, 30a, 30b, 30c) to said pen (10, 10b, 10c).

4. The injection device as defined in claim 1 wherein said setting means (50) is defined by mechanical force transmitting elements (51, 52) of the respective external display apparatus (30c) and the pen (10c).

5. The injection device as defined in claim 1 wherein said setting means (50) comprises mechanical force transmitting elements (51, 52) of the respective external display apparatus (30c) and the pen (10c), and means (53) driving the mechanical force transmitting element (51) of said external display apparatus (30c).

6. The injection device as defined in claim 1 wherein said setting means (50) is defined at least in part (51) by said external display apparatus (30c).

7. The injection device as defined in claim 1 wherein said external display apparatus (30c) includes means (60) for calculating the single injection predetermined volume dose from a measured blood sugar rate.

8. The injection device as defined in claim 1 wherein said external display apparatus (30c) includes means (60) for calculating the single injection predetermined volume dose from a measured blood sugar rate, and said transmitting means (50) transmits the single injection predetermined volume dose on the basis of said calculating means (60).

9. The injection device as defined in claim 1 wherein the pen (10, 10a, 10b, 10c) lacks a power source and is supplied power from a power source (65) of said external display apparatus (30, 30a, 30b, 30c).

10. The injection device as defined in claim 1 wherein the external display apparatus (30, 30a, 30b, 30c) lacks a power source and is supplied power from a power source (70) of said pen.

11. The injection device as defined in claim 1 wherein said external display apparatus (30c) includes means (36) for providing an acoustic indication of the single injection predetermined volume dose.

12. The injection device as defined in claim 1 wherein said external display apparatus (30, 30a, 30b, 30c) includes means (90) for identifying a specific pen, a specific patient and a specific dose.

13. The injection device as defined in claim 1 wherein said external display apparatus (30, 30a, 30b, 30c) includes means (95) for connecting thereto an external computer (C) for data transfer.