| 摘要 |
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. |
