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1. WO2010004206 - DEVICE FOR INJECTING FLUID FOR MEDICAL USE

Publication Number WO/2010/004206
Publication Date 14.01.2010
International Application No. PCT/FR2009/051346
International Filing Date 07.07.2009
IPC
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
5
Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
178
Syringes
24
Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
5
Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
178
Syringes
31
Details
315
Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod; Appliances on the rod for facilitating dosing
A61M 5/24 (2006.01)
A61M 5/315 (2006.01)
CPC
A61M 2005/31516
A61M 5/2425
A61M 5/2466
Applicants
  • CAHEN, Jean-Paul [FR/FR]; FR
Inventors
  • CAHEN, Jean-Paul; FR
Agents
  • GASQUET, Denis; FR
Priority Data
080385607.07.2008FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) DEVICE FOR INJECTING FLUID FOR MEDICAL USE
(FR) DISPOSITIF D'INJECTION D'UN FLUIDE A USAGE MEDICAL
Abstract
(EN)
The invention relates to a device for injecting a fluid for medical use and is characterized in that the device consists of a base wherein a container (2) for receiving the injection fluid is provided, said container being formed by a bellows-shaped body (6) made of deformable material and including a top surface (4) comprising a tip (7) through which fluid passes, while the base (1) consists of a bottom wall, enabling the axially translatable piston rod to be guided, and a top wall, characterized in that: - the tip (7) is inserted into a suitable arrangement of the top wall of the base, - the top surface (4) and the bottom wall are conical in shape, while the chamber (6) of the container (2) consists of circular rings, and the piston has a shape complementing the shape of the cavity (8) of the bottom wall (5) such that, when the bellows is completely folded up into itself after injection, the chamber is totally empty, with no residual liquid.
(FR)
Dispositif d'injection d'un fluide à usage médical, caractérisé en ce qu'il est constitué d'un support dans lequel est installé un réservoir (2) destiné à recevoir le fluide à injecter, ledit réservoir étant formé d'un corps (6) réalisé en matériau déformable, ayant la forme d'un soufflet comprenant une face supérieure (4) comportant un embout (7) de passage du fluide, tandis que le support ( 1 ) est constitué par une paroi de fond permettant le guidage de la tige d'un piston mobile en translation axiale, et une paroi de sommet, caractérisé en ce que - l'embout (7) est engagé dans un aménagement approprié de la paroi de sommet du support, - La face supérieure (4) et la paroi de fond ont la forme d'un cône, tandis que l'enceinte (6) d u réservoir (2) est constitué d'anneaux circulaires et le piston est de forme complémentaire à la forme du logement (8) de la paroi de fond ( 5 ) de sorte de sorte q ue lorsque le soufflet est entièrement replié sur lui-même après injection, l'enceinte est totalement vide sans liquide résidue. (Figure 1)
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