Coating implements with material supply – Including tool with blade-like – pad-like – or apertured... – Apertured tool
Reexamination Certificate
2000-07-12
2001-10-09
Huson, Gregory L. (Department: 3751)
Coating implements with material supply
Including tool with blade-like, pad-like, or apertured...
Apertured tool
C401S261000, C401S196000, C222S541100
Reexamination Certificate
active
06299377
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This is the USC 35 USC 371 national stage of International application PCT/FR98/02321 filed Oct. 29, 1998, which designated the United States of America.
FIELD OF THE INVENTION
The present invention relates to an applicator for applying liquid to the skin, of the type including a hydrophilic pad for applying the liquid to the area to be treated and means for connecting the pad to a liquid storage cartridge, which connecting means are adapted for mounting the pad opposite the outlet through which the liquid flows out of the cartridge.
BACKGROUND OF THE INVENTION
It is standard practice to use a hydrophilic pad to apply a disinfectant liquid or a medication to a wound.
It is known in the art to store the hydrophilic pad and the liquid for impregnating the pad separately to prevent the hydrophilic pad drying out too quickly in is storage.
For example, document FR-A-2 732 585 describes packaging which has two initially separate compartments respectively containing a hydrophilic pad and a liquid active product. Before the pad is used, communication is established between the two compartments and the liquid active product therefore impregnates the pad.
In this type of packaging, all of the packaging must be sterile to conserve the active properties of the liquid contained in one of the compartments. Moreover, for packaging of this kind to be offered for sale, it is necessary to obtain certification which guarantees that the packaging is sterile and safe. Such certification must be obtained for each different type of packaging, which can vary in shape or volume in particular. Thus obtaining the certification is a costly and time-consuming operation which considerably increases the unit cost of the product.
Documents WO-91/12197, WO-94/13352, FR-A-1 415 759 and GB-A-2 020 174 and U.S. pat. No. 3,148,401 describe liquid applicators of the aforementioned type. However, in those applicators, the hydrophilic pad for applying the liquid is formed by a block of hydrophilic foam with a small surface area, making it difficult to apply the liquid over a large area.
SUMMARY OF THE INVENTION
The object of the invention is to propose a device for applying liquid to the skin which is adapted to receive a separately packaged liquid active product, requires no specific certification to be obtained for the applicator associated with the independently certificated container in which the liquid is stored, and enables convenient application of the liquid to a wound.
To this end, the invention provides an applicator for applying a liquid to the skin of the aforementioned type characterized in that the pad comprises a hydrophilic strip folded on itself and the connecting means include means for holding the outlet of the cartridge between the two folded edges of the strip.
In particular embodiments of the invention the applicator has one or more of the following features:
the connecting means include a collar adapted to be fixed to the neck of a cartridge;
the fixing collar includes two identical flanges fastened together and each delimiting a half-collar;
the two flanges are welded, riveted or crimped together or fixed together by at least one connecting lug in one piece with one flange and bent over the other flange;
the connecting means include means for spreading the edges of the hydrophilic strip in the area of connection to the cartridge;
each flange is extended on either side of the outlet of the cartridge by claws for retaining the ends of the hydrophilic strip;
the pad includes a flexible support to which a hydrophilic strip is fixed and the flexible support is attached to the connecting means;
the flexible support is in the general form of a hoop delimiting a housing to receive the outlet of the cartridge and possibly a stopper for closing off the latter;
the thickness of the flexible support decreases progressively from the connecting means to its end remote from the connecting means;
the connecting means allow relative movement between the applicator and the cartridge to enable a stopper blocking the outlet of the cartridge to be broken off;
it includes a member for perforating an end face of the cartridge which is adapted to be perforated;
the connecting means include a screwthread adapted to co-operate with a complementary screwthread on the cartridge to bring about said relative movement between the applicator and the cartridge;
said relative movement between the applicator and the cartridge is a rotational movement; and
the applicator is packaged in a protective sachet.
The invention also provides a therapeutic kit characterized in that it includes at least one hermetically sealed cartridge containing a sterile treatment liquid and at least one applicator as defined hereinabove adapted to be mounted on a cartridge which is initially separate from the applicator.
The invention further provides a therapeutic device characterized in that it includes an applicator as defined hereinabove and a hermetically sealed cartridge containing a sterile treatment liquid and on which said applicator is mounted.
REFERENCES:
patent: 1262473 (1918-04-01), Ensley
patent: 2299236 (1942-10-01), Hollenbeck et al.
patent: 2948008 (1960-08-01), Leeds et al.
patent: 2976560 (1961-03-01), Turner
patent: 3148401 (1964-09-01), Gilchrist et al.
patent: 4889441 (1989-12-01), Tice
patent: 5174756 (1992-12-01), Taylor
patent: 1415759 (1966-01-01), None
patent: 2020174A (1979-11-01), None
patent: WO 9112197 (1991-08-01), None
patent: WO 9113814 (1991-09-01), None
patent: WO 9413352 (1994-06-01), None
Emerit Michel Henri Jean
Paternotte Yanick André Jean
Aspir
Huson Gregory L.
Le Huyen
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