Device for finely dosed discharge of syringes

• US 20080255525A1
• Filed: 04/14/2008
• Published: 10/16/2008
• Est. Priority Date: 04/13/2007
• Status: Abandoned Application

• Current Assignee: Ahmmed Ziah Taufig
• Original Assignee: Ahmmed Ziah Taufig
• Inventors: Taufig, Ahmmed Ziah
• Application Number:
  US12/081,253
• Publication Number:
  US 20080255525A1
• Time in Patent Office: Days
• US Class Current: 604/207
• 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 2005/3139 Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
• CPC Class Codes: A61M 2005/3152 including gearings to multiply or attenuate the piston displacing force
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 5/31525 Dosing burettes, pipettes B01L3/02
• CPC Class Codes: A61M 5/31566 Means improving security or handling thereof
• CPC Class Codes: A61M 5/31575 using scaling up or down transmissions, e.g. gearbox
• CPC Class Codes: B01L 2200/143 Quality control, feedback systems
• CPC Class Codes: B01L 2300/025 Displaying results or values with integrated means
• CPC Class Codes: B01L 3/0217 of the plunger pump type medical syringes A61M
• 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

The device comprises a first holding device (10) which is attached to a syringe barrel (11) of a syringe, and a second holding device (25) which is attached to a plunger barrel (21) of the syringe. Both holding devices are linearly guided relative to each other. One of the holding devices carries a dial gage (31) comprising a rotary shaft (30). Said rotary shaft (30) is in engagement with a toothing (29) of the other holding device. An indicator (32) indicates, with a high resolution, the movement of the plunger rod relative to the syringe barrel such that a highly accurate fine dosing of a liquid discharged from the syringe can be realized.

Claims

1. A device for finely dosed manual discharge of syringes, comprising a syringe holder having a first holding device (10) for engaging a syringe barrel (11), and a second holding device (25) for engaging a plunger rod (21) of the syringe, said first and said second holding devices (10,25) being guided in a manner movable relative to each other, wherein at one of said two holding devices (10,25) a signal transmitter is fastened which shows and optically and/or acoustically indicates the position of said holding device relative to said other holding device.

2. The device according to claim 1, wherein the signal transmitter is fastened to the first holding device (10).

3. The device according to claim 1, wherein the signal transmitter is fastened to the second holding device (25).

4. The device according to claim 1, wherein the signal transmitter is a dial gage (31) comprising a rotary shaft (30) rolling off the other holding device.

5. The device according to claim 4, wherein that holding device, where the rotary shaft (30) rolls off, comprises a toothing (29) which meshes with a toothing of said rotary shaft (30).

6. The device according to claim 4, wherein the dial gage (31) comprises an indicator (32) rotating together with the rotary shaft (30).

7. The device according to claim 1, wherein the signal transmitter comprises a display.

8. The device according to claim 1, wherein at one of the holding devices a gearwheel (33) is supported which meshes with a toothing (35) of the other holding device.

9. The device according to claim 1, wherein the first holding device (10) comprises a finger plate (13) and the second holding device (25) comprises a thumb plate (28).