| 摘要 |
The present invention is an attachment or locking apparatus (7) which can effectively secure an implant (3) such as a stent or stent graft to a vessel or hollow organ wall, and which allows minimally-invasive techniques, such as laparoscopy to be used to attach the implant (3). The locking element (7) is inserted through an anatomic vessel or hollow organ wall, and the implant (3) from outside of the vessel or hollow organ. The locking element (7) preferably is composed of a thin retaining element (9), and a clamping element (8) joined flexibly at one end of the retaining element (9). A fixing element (12) is secured in position on the retaining element (9) to secure or attach the implant (3) in place. A positioning device (17), including a thin cannula (17) with an attached locking element (7), may be inserted into the patient's body, such that the cannula (17) penetrates both the vascular or hollow organ wall, and the implant (3) deployed within the vascular wall. The clamping element (8), held within the cannula (17), is then ejected into the vessel or hollow organ. The locking element (7) is pulled tight, and pressure-distribution, and/or pressure elements (13, 14) are then slid down the locking element (7) toward the vessel wall or hollow organ. A fixing element (12) is then slid against the pressure-distribution, and/or pressure elements (13, 14) that is secured into place. The free end of the locking element (7) may then be cut off near the fixing element (12).
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