LENGTH-REDUCING SYRINGE DRIVING DEVICE

• US 20170049968A1
• Filed: 04/28/2015
• Published: 02/23/2017
• Est. Priority Date: 04/29/2014
• Status: Abandoned Application

• Current Assignee: Kyu Dong Choi
• Original Assignee: Kyu Dong Choi
• Inventors: CHOI, Kyu Dong
• Application Number:
  US15/307,495
• Publication Number:
  US 20170049968A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61M 2005/31518 designed to reduce the overall size of an injection device, e.g. using flexible or pivotally connected chain-like rod members
• CPC Class Codes: A61M 5/14 Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
• 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 5/31 Details
• CPC Class Codes: A61M 5/315 Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence
• CPC Class Codes: A61M 5/31515 Connection of piston with piston rod

Abstract

Disclosed herein is a length-reducing syringe driving device, the length-reducing syringe driving device wherein a drive for syringe device is installed at a syringe device (10), and pushes and drives a piston (12) equipped at an injection cartridge (11) which has a discharging outlet (13) at one dead end thereof.

The length-reducing syringe driving device (100) comprises: a rotation driving part (110) installed at one or more places at an outer sidewall surface at the other dead end of the injection cartridge (11); and a one-way bending member (120) provided to be contacted to the piston (12) at one dead end thereof, configured to be bended exclusively to one direction, and having a sidewall surface of a bending direction driven by the rotation driving part (110) and pushing the piston (12).

In the present invention, main elements of the invention are disposed at an outer sidewall surface of an injection cartridge and the entire length (L) of a driving device is remarkably reduced when having the same stroke. Therefore, it is to provide a syringe device which is convenient to be carried and to make syringe devices having many different embodiments possible.

Claims

1. A length-reducing syringe driving device,

wherein a syringe driving device is installed at a syringe device (10), and pushes and drives a piston (12) equipped at an injection cartridge (11) having a discharging outlet (13) at one dead end thereof, comprising:

a rotation driving part (110) installed at one or more places at an outer sidewall surface at the other dead end of the injection cartridge (11); and

a one-way bending member (120) provided to be contacted to the piston (12) at one dead end thereof, configured to be bended exclusively to one direction, and having a sidewall surface of a bending direction thereof driven by the rotation driving part (110) and pushing the piston (12)

2. The length-reducing syringe driving device of claim 1, further comprising:

a separation preventing member (140) provided at an outer sidewall surface of the one-way bending member (120) which is contacted to the rotation driving part (110) and preventing the separation of the one-way bending member (120),

wherein the one-way bending member (120) has a configuration in which a sidewall of the bending direction ‘

a’

thereof is contacted to an inner sidewall surface (11a).

3. The length-reducing syringe driving device of claim 2,

wherein the one-way bending member (120) is configured in a way that bending links (121) are connected each other.

4. The length-reducing syringe driving device of claim 3,

wherein the bending links (121) comprises:

a protruding connecting link (122) wherein a first connecting shaft (123) is provided at one side thereof;

a second connecting shaft (124) provided at the other side thereof and connected with the first connecting shaft (123) of the bending links (121);

a driving protrusion (125) provided at a bending direction ‘

a’

; and

a bending preventing protrusion (126) provided at a non-bending direction ‘

b’ and

forming protrusions (127, 127′

) respectively at the one side and the other side direction,

wherein the rotation driving part (110) further comprises a drive gear (111) which is coupled and driven by a driving protrusion (125)

5. The length-reducing syringe driving device of claim 4, further comprising a piston pressing member (130) which is connected at one dead end of the one-way bending member (110).