Resettable display of a device for metered administration of a fluid drug

• US 6,364,860 B1
• Filed: 06/05/1998
• Issued: 04/02/2002
• Est. Priority Date: 06/05/1997
• Status: Expired due to Fees

• Current Assignee: TecPharma Licensing AG (Ypsomed Holding AG)
• Original Assignee: Disetronic Licensing Ag (Roche Holding AG)
• Inventors: Steck, Jürg, Gurtner, Thomas
• Primary Examiner(s): Sykes, Angela D.
• Assistant Examiner(s): Bianco, Patricia
• Application Number:
  US09/092,529
• Time in Patent Office: 1,397 Days
• Field of Search: 614/246, 614/32, 614/68, 614/71, 614/207, 614/208, 614/211, 222/43, 222/46, 222/336, 222/309, 604/186-88, 604/209, 604/210, 604/214, 604/232, 604/246
• US Class Current: 604/246
• 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 2005/3152 including gearings to multiply or attenuate the piston displacing force
• 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 5/31525 Dosing burettes, pipettes B01L3/02
• CPC Class Codes: A61M 5/31553 without axial movement of dose setting member
• CPC Class Codes: A61M 5/31563 interacting with a displaceable stop member
• CPC Class Codes: A61M 5/3158 performed by axially moving actuator operated by user, e.g. an injection button

Abstract

A resettable display of a device for metered administration of a fluid drug, comprising a housing, a fluid container containing the fluid and provided in or on said housing, an actuating device shiftably mounted by a length in or on said housing, which, upon actuation, shifts a piston in the fluid container in order to displace from the fluid container a fluid dose adjusted by the actuating device, a display provided in or on said housing displaying a measure for the adjusted fluid dose, and a resetting means shifted with the actuating device and thus resetting the display. The display comprises a minimum of one counter ring rotated from a zero position when adjusting the fluid dose by means of the actuating device in relation to the housing. The resetting means mechanically transfers the shift movement of the actuating device into a reverse rotary movement of the counter ring towards its zero position (FIG. 1).

Claims

1. A resettable display of a device for metered administration of a fluid, comprising:

a) a housing,

b) a fluid container provided in or on the housing and containing the fluid, the fluid container having a piston,

c) an actuating device shiftably mounted by a length in or on said housing, wherein upon actuation the actuating device shifts the piston in the fluid container in order to displace from the fluid container a fluid dose adjusted by means of the actuating device,

d) a display provided in or on said housing displaying a measure for the adjusted fluid dose, and

e) a resetting means shifted with the actuating device and thus resetting the display, in which the resetting means includes a guide track and in which the display comprises a first counter ring rotated when adjusting the fluid dose by means of the actuating device in relation to the housing from a zero position, said counter ring carrying a projection for engaging said guide track, whereby

said resetting means mechanically transfers a longitudinal movement of the actuating device into a reverse rotary movement of the first counter ring towards its zero position.

2. A resettable display according to claim 1, in which the guide track runs around a central longitudinal line of the first counter ring.

3. A resettable display according to claim 1, in which the engaging projection is formed by a radial internal projection from an internal circumferential surface of the first counter ring.

4. A resettable display according to claim 1, in which the first counter ring is driven by adjusting the fluid dose to be administered in an identical manner to a mileage counter, in which a rotary movement of a metering and actuating push-button of the actuating device is transferred to a shaft rotatably supported in or on the housing and the rotary movement of the shaft is transferred to the first counter ring via a toothed gear non-rotatably mounted on the shaft.

5. A resettable display according to claim 4, in which the shaft is arranged parallel to the rotary axis of the metering and actuating push-button of the actuating device.

6. A resettable display of a device for metered administration of a fluid, comprising:

a) a housing,

b) a fluid container provided in or on the housing and containing the fluid, the fluid container having a piston,

c) an actuating device shiftably mounted by a length in or on said housing, wherein upon actuation the actuating device shifts the piston in the fluid container in order to displace from the fluid container a fluid dose adjusted by means of the actuating device,

d) a display provided in or on said housing displaying a measure for the adjusted fluid dose, and

e) a resetting means shifted with the actuating device and thus resetting the display, in which the resetting means includes a guide track and in which the display comprises a first counter ring rotated when adjusting the fluid dose by means of the actuating device in relation to the housing from a zero position, said counter ring carrying a projection for engaging said guide track, whereby said resetting means mechanically transfers a longitudinal movement of the actuating device into a reverse rotary movement of the first counter ring towards its zero position, wherein the resetting means contains a front track end and a track base, and wherein the guide track extends in two directions from the front track end towards the track base and the engaging means is guided in the direction toward the track base when shifting the resetting means.

7. A resettable display according to claim 6, in which the guide track extending from the front track end terminates in a longitudinal groove at the track base.

8. A resettable display according to claim 6, in which the front track end is offset from a diagonally opposite central position in relation to the track base.

9. A resettable display of a device for metered administration of a fluid, comprising:

a) a housing,

b) a fluid container provided in or on the housing and containing the fluid, the fluid container having a piston,

c) an actuating device shiftably mounted by a length in or on said housing, wherein upon actuation the actuating device shifts the piston in the fluid container in order to displace from the fluid container a fluid dose adjusted by means of the actuating device,

d) a display provided in or on said housing displaying a measure for the adjusted fluid dose, and

e) a resetting means shifted with the actuating device and thus resetting the display, in which the resetting means includes a guide track and in which the display comprises a first counter ring rotated when adjusting the fluid dose by means of the actuating device in relation to the housing from a zero position, said counter ring carrying a projection for engaging said guide track, whereby said resetting means mechanically transfers a longitudinal movement of the actuating device into a reverse rotary movement of the first counter ring towards its zero position, in which the resetting means contains a sleeve face and is sleeve-shaped and the guide track is formed on the sleeve face of the resetting means.

10. A resettable display of a device for metered administration of a fluid, comprising:

a) a housing,

b) a fluid container provided in or on the housing and containing the fluid, the fluid container having a piston,

c) an actuating device shiftably mounted by a length in or on said housing, wherein upon actuation the actuating device shifts the piston in the fluid container in order to displace from the fluid container a fluid dose adjusted by means of the actuating device,

d) a display provided in or on said housing displaying a measure for the adjusted fluid dose, and

e) a resetting means shifted with the actuating device and thus resetting the display, in which the resetting means includes a guide track and in which the display comprises a first counter ring rotated when adjusting the fluid dose by means of the actuating device in relation to the housing from a zero position, said counter ring carrying a projection for engaging said guide track, whereby said resetting means mechanically transfers a longitudinal movement of the actuating device into a reverse rotary movement of the first counter ring towards its zero position, in which a second counter ring is arranged flush with the first counter ring, and wherein the first counter ring displays basic dose units and the second counter ring displays the number of revolutions of the first counter ring.

11. A resettable display of a device for metered administration of a fluid, comprising:

a) a housing,

b) a fluid container provided in or on the housing and containing the fluid, the fluid container having a piston,

c) an actuating device shiftably mounted by a length in or on said housing, wherein upon actuation the actuating device shifts the piston in the fluid container in order to displace from the fluid container a fluid dose adjusted by means of the actuating device,

d) a display provided in or on said housing displaying a measure for the adjusted fluid dose, and

e) a resetting means shifted with the actuating device and thus resetting the display, in which the resetting means includes a guide track and in which the display comprises a first counter ring rotated when adjusting the fluid dose by means of the actuating device in relation to the housing from a zero position, said counter ring carrying a projection for engaging said guide track, whereby said resetting means mechanically transfers a longitudinal movement of the actuating device into a reverse rotary movement of the first counter ring towards its zero position, in which the first counter ring is driven by adjusting the fluid dose to be administered in an identical manner to a mileage counter, in which a rotary movement of a metering and actuating push-button of the actuating device is transferred to a shaft rotatably supported in or on the housing and the rotary movement of the shaft is transferred to the first counter ring via a toothed gear non-rotatably mounted on the shaft, and in which a second toothed gear is rotatably supported by the shaft, the second toothed gear being in constant engagement with a toothed ring formed on a second counter ring and in turn being driven by a partial toothed ring of the first counter ring when the first counter ring completes a full rotation and that the angular area spanned by the partial toothed ring corresponds to the angular area of a scale division of the second counter ring.

12. A device for metered administration of a fluid, comprising:

a) a housing;

b) an actuating device movably coupled to the housing, wherein the actuating device rotates for selecting a dose of the fluid and longitudinally shifts for administering the selected dose;

c) a display associated with the housing for displaying the selected dose, the display having at least one counter ring rotated from a zero position when selecting the fluid dose, said counter ring carrying a projection; and

d) a resetting sleeve movably attached within the housing and carrying a guide track for receiving the projection, wherein during administration of the dose, the interaction of the projection and the guide track of the resetting sleeve transfers the longitudinal movement of the actuating device into rotary movement of the at least one counter ring to reset the at least one counter ring to the zero position.

13. The device of claim 12, wherein the actuating device comprises a metering and actuating push-button having a head section and a first sleeve, a drive sleeve non-rotatably connected to the first sleeve, and an actuating rod movably mounted within the drive sleeve.

14. The device of claim 12, wherein the resetting sleeve contains a tip at a front end and a groove at a back end, and wherein the guide track extends in two directions from the tip to the groove and the at least one projection is guided along the guide track toward the groove when the actuating rod is longitudinally shifted.

15. The device of claim 12, wherein the at least one projection is formed by a radial internal projection from an internal circumferential surface of the counter ring.

16. The device of claim 12, wherein the counter ring comprises a first counter ring and a second counter ring arranged flush with the first counter ring, and wherein the first counter ring displays basic dose units and the second counter ring displays the number of revolutions of the first counter ring.

17. A device for metered administration of a fluid comprising:

a) a housing;

b) an actuator movably coupled to the housing, wherein a longitudinal movement of the actuator causes a fluid dose to be administered;

c) a display associated with the housing, wherein rotation of the actuator causes the display to display the fluid dose to be administered said display comprising a counter ring carrying a projection; and

d) a resetting sleeve operably coupled to the actuating device, said resetting sleeve carrying a guide track for receiving the projection, wherein, upon administering the fluid dose, the interaction of the projection and the guide track of the resetting sleeve automatically resets the display.