An elongate hand unit for deploying an elongate implant from the distal end of a delivery catheter, which catheter has a shaft between the distal end carrying the implant and a proximal end to which the hand unit may be coupled, the shaft comprising a push element to maintain the position of the implant during deployment and a pull element to be pulled proximally relative to the push element, by a release distance sufficient to deploy the implant: the hand unit having a distal end and a proximal end separated by a hand unit length, and comprising a pull component and a push component； the pull component having a pull grip, to be gripped and pulled proximally by the release distance, sliding on the push component, thereby to pull the pull element proximally, thereby to deploy the implant； the push component to be operatively connected to the push element of the catheter shaft and having at its proximal end a push surface to receive during deployment of the implant a force that pushes on the push element shaft to resist proximal movement of the implant during deployment, the push component providing a guide rail that defines a guide path for the pull grip, with a guide path length along which the pull grip can slide proximally, from a distal to a proximal end of the guide rail whereby the proximal movement of the pull grip along the guide path deploys the implant.La présente invention concerne une unité manuelle allongée pour déployer un implant allongé de l'extrémité distale d'un cathéter de délivrance, ledit cathéter ayant une tige entre l'extrémité distale portant l'implant et une extrémité proximale à laquelle l'unité manuelle peut être accouplée, la tige comprenant un élément de poussée pour maintenir la position de l'implant durant le déploiement et un élément de traction à tirer proximalement relativement à l'élément de poussée, sur une distance de libération suffisante pour déployer l'implant ； l'unité manuelle ayant une extrémité distale et une extrémité prox
