Patent Number: 
Section: claims

1. A two-directional device to replace a handling glove from an inside to an outside of a glove box and from the outside to the inside under confinement, said device being designed to replace a used glove by a new glove comprising a cuff connected in a sealed manner to a shoulder port mounted in a sealed manner on a wall of a confinement containment and connected in a sealed manner to a cuff sleeve, and a glove made of a flexible material connected in a sealed manner to a glove sleeve, wherein an outside of the glove sleeve comprises a determined number of snap-fitting studs located on flexible sectors, and wherein the cuff sleeve has a cylindrical internal surface without any obstacles and comprises a number of axial ramps on the cylindrical internal surface, equal to the number of snap-fitting studs, and configured to guide the snap-fitting studs into anchor cavities thereby locking the glove sleeve in the cuff sleeve, said glove sleeve and said cuff sleeve forming a fully sealed assembly called a cuff port once assembled. 2. The glove replacement device according to claim 1, wherein a static and dynamic seal during the replacement is composed of at least one seal, either injected or embedded in a sealed manner in a groove of the glove sleeve provided on a glove sleeve body/to provide a permanent seal between the cuff sleeve and the glove sleeve. 3. The glove replacement device according to claim 2, wherein the seal is made of elastomer on which surface ionisation has been done to improve its slip properties, facilitating placement of a new ring and ejection of an old ring. 4. The glove replacement device according to claim 1, further comprising stud retraction pins, wherein the snap-fitting studs and the stud retraction pins are provided with visual marks that facilitate correct positional alignment of the glove. 5. The glove replacement device according to claim 1, wherein visual marks are used to facilitate positioning during interchangeability actions consisting of a simple translation, so that no special tools are necessary for the interchangeability manipulation made by the operator. 6. The glove replacement device according to claim 1, further comprising a locking system composed of the snap-fitting studs being insertable into appropriate anchor cavities, these snap-fitting studs being unclipped by retraction pins that enter housings of the flexible sectors to retract towards the inside of the glove sleeve, this action resulting in unclipping of these snap-fitting studs. 7. The glove replacement device according to claim 1, wherein the glove sleeve is composed of a glove sleeve body comprising devices for guidance and locking of this glove sleeve body in a cuff sleeve body and wherein it comprises a glove assembly ring of the glove in the glove sleeve body, retention being obtained by the glove assembly ring in the glove sleeve body. 8. The glove replacement device according to claim 1, wherein the cuff sleeve is composed of a cuff sleeve body and a cuff assembly ring that pushes the cuff into contact with a stop of the cuff sleeve body, thus providing a seal of the cuff sleeve, the complete assembly being retained by assembling the parts making them indissociable. 9. A method of replacing a used glove by a new glove using a device according to claim 5, including the following steps:the new glove sleeve is placed on the used glove sleeve in position in a cuff sleeve body taking care to align a mark of the new sleeve with a mark of the cuff sleeve body,the new glove sleeve is pushed onto the used glove sleeve, andthe new glove sleeve and the used glove sleeve are pushed in a single piece into the cuff sleeve body, to the end of locking located on the cuff sleeve body, signalled by a “click”. 10. The method according to claim 9, applied to a glove box in positive pressure, wherein it begins with the following two phases:the used glove is rolled up towards an outside of the cuff, andthe new glove fitted with its sleeve is placed inside the confinement containment. 11. The method according to claim 9, applied to a glove box in positive pressure, wherein at the end of the process, the used glove sleeve is pushed clear into the inside of the cuff. 12. The method according to claim 9, applied to a glove box in negative pressure, wherein it begins with the following three phases:the cuff is rolled up towards an outside of a cell, andthe new glove is rolled up towards an inside of its own sleeve,the new glove fitted with its glove sleeve is placed outside the confinement containment. 13. The method according to claim 9, applied to a glove box in negative pressure, wherein at the end of the process, the used glove sleeve is pushed clear into the inside of the glove box.