Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1997-09-29
1999-04-20
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604171, 206364, A61M 500
Patent
active
058953744
DESCRIPTION:
BRIEF SUMMARY
The invention relates to an applicator for use in non-contaminating application of a medical catheter for insertion into a body canal, in particular a urethra catheter, and of the kind provided with a friction-reducing surface coating.
French Utility Certificate No. 2 676 038 discloses a plastic foil packaging for use with acupuncture and injection needles, swab sticks and similar medical utensils, designed as an elongated sheath of two plastic foil blanks which along their side and end edges are joined in such a way that in upper and lower sections of the sheath, peeling zones are provided for relatively easy separation of the plastic foil blanks, whereas a strong adhesion between the two plastic foil blanks is provided in a central area.
When using this known packaging for an acupuncture or injection needle, the needle is Positioned in the packaging with an enlarged head portion in the upper section of the sheath and the pointed end in the lower section. By the operating manipulation, the operator grips the central part of the sheath where the two foils are fastened strongly to each other. By separation of the foil blanks in the upper section, access is thus provided to the head portion of the needle with a view to manipulating an acupuncture needle or to coupling an injection needle with a syringe. The application and the location of an acupuncture or injection needle at the acupuncture or injection area are effected by separation of the foil walls in the lower section without touching the part of the needle positioned in this section. It is an essential feature of this known packaging and application design that during insertion of the needle, the packaging stays connected to this.
On the basis of this known technique, it is the object of the invention to provide an applicator of the stated kind by which a medical catheter can be applied, ie. inserted into a body canal, with no risk of contamination and at the same time, the catheter is separated completely from the packaging.
Therefore, the applicator according to the invention is characterized in that it is designed as a packaging composed of two essentially rectangular edge-joined foil blanks forming the walls for a space in which the catheter may be positioned with its distal insertion end opposite a predetermined first zone of the edge joint, and that the edge joint extending along all side edges of these foil walls is composed of essentially linear peeling zones permitting complete separation of the two foil walls with a view to contamination-free application of the catheter through gradual, complete separation of the foil walls in said peeling zones in the direction away from said first zone by a pull essentially perpendicular to the longitudinal direction of the catheter and during simultaneous insertion of the catheter into said body canal without touching the catheter.
By this applicator there is achieved a safe application of the catheter both when the catheterization is effected by nursing staff or by the patient himself as the catheter can be controlled in a precise manner during the insertion merely by gripping the foil walls at the said first zone, and the insertion force is provided by the pull in the foil walls exerted during the gradual separation hereof in the direction away from the first zone. The insertion can thus be made in a simple way without touching the very catheter and without consequent contamination, whereby the infection risk is reduced.
In order to help the user to help himself as much as possible, the applicator can, when used in connection with catheters of the kind where the friction-reducing surface coating is activated by moistening with water immediately before the application, according to an advantageous further development of the invention, be provided with instructions for initial separation of local parts of the two walls merely at said first zone or a remote second zone of the edge joint in order to permit preparation of the catheter by introduction and removal of a moistening medium through the thus formed
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patent: 4230115 (1980-10-01), Walz, Jr. et al.
patent: 4906237 (1990-03-01), Johansson et al.
patent: 4925448 (1990-05-01), Bazaral
Coloplast A/S
Yasko John D.
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