Pumps – Ambulant – body supported – or with carrying handle
Patent
1997-04-04
1998-07-21
Freay, Charles G.
Pumps
Ambulant, body supported, or with carrying handle
417313, F04B 5300, F04B 4308
Patent
active
057826110
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a portable pump assembly.
More precisely, the invention relates to a portable pump comprising a pump proper mounted in a box, and a plurality of accessories that can be fixed on said pump box.
In the medical and hospital fields, ever increasing use is being made of small-sized pumps, in particular of the peristaltic type, for delivering medical or physiological serums to patients. These pumps serve to displace various liquids within a flexible hose having one end connected via a cannula or a needle to the patient, with the rate at which liquid is injected being under very accurate control. Usually such pumps are in the form of a box containing both the mechanical portion of the pump and its electronic control circuits together with an electrical power supply. A keypad is provided on the front face of the pump for programming operation of the pump and also various indications.
The pump can be used in various situations. It may serve to dispense liquid to a patient confined to a hospital bed. Under such circumstances, it is desirable to be able to fix the pump on a bracket that may itself also support the flask of liquid that is to be dispensed. In other cases, the pump is worn continuously by the patient. In this situation, either the pump needs to be fixed to a belt worn by the patient for reasons of convenience, said belt itself carrying a pouch containing the liquid to be injected, or else in other circumstances the pouch is contained in a case that forms a kind of bag, and it is then desirable to be able to associate the pump with the bag containing the pouch of liquid.
OBJECT AND SUMMARY OF THE INVENTION
An object of the present invention is to provide a portable pump assembly in which the pump can be associated with various accessories enabling the pump to be fixed and/or the pump and the pouch containing the liquid for injection to be fixed. It is also desirable for the pump to be capable of being conveniently fixed to said various accessories without needing to modify the pump box and without having to use specific fixing means for each of the accessories used with the pump.
To achieve this object, according to the invention, the portable pump assembly which comprises a pump mounted in a box and a plurality of distinct accessories fixable on said pump box, is characterized: distinct from the control face, said fixing face including first mechanical fixing means and non-moving first locking means; second face, the first face being provided both with second mechanical fixing means, said first and second mechanical fixing means forming a rib-and-slideway system, and with moving second locking means such that when the first and second mechanical fixing means co-operate mutually, the first and second locking means also co-operate to secure said link member on said box, and the second face including a first fixing zone and a manual control element for unlocking the second locking means; at least a portion of said first fixing zone; and on at least a portion of said first fixing zone.
It will thus be understood that by means of the invention it is possible, by making use of the link member which is always of the same shape, to fix an accessory on the fixing face of the pump box. The fixing face of the pump includes special means for enabling the link member to be fixed and locked or unlocked, while the link member itself includes standard means for fixing to the accessory that is to be secured to the pump.
BRIEF DESCRIPTION OF THE DRAWINGS
Other characteristics and advantages of the present invention appear more clearly on reading the following description of various embodiments of the invention, given as non-limiting examples. The invention refers to the accompanying drawings, in which:
FIG. 1 is a view of the front face of the box for a pump;
FIG. 2 is a view of the fixing back face of the pump box;
FIG. 3 is a fragmentary section on line III--III of FIG. 2;
FIG. 4 is a fragmentary section view on line IV--IV of FIG. 2;
FIG. 5 is a view
REFERENCES:
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patent: 5236004 (1993-08-01), Sunderland et al.
patent: 5472317 (1995-12-01), Field et al.
patent: 5478211 (1995-12-01), Dominiak et al.
patent: 5482446 (1996-01-01), Williamson et al.
International Search Report for PCT/FR95/01304, filed Oct. 6, 1995.
Bouvier Bernard
Neftel Frederic
Freay Charles G.
Korytnyk Peter G.
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