Systems and methods for the retrieval gallbladder implants

An implant retrieval system for retrieving a previously deployed implant in a patient's body lumen, comprising:

• an outer catheter with a lumen disposed therethrough along a central axis of the outer catheter and configured with a diameter smaller than a diameter of the deployed implant;
• and,
• a capture device, with a lumen disposed therethrough, configured with a smaller diameter than the outer catheter and configured to slide within the lumen of the outer catheter and including at least one capturing arm, outwardly and automatically expandable from the central axis and configured with an unexpanded diameter smaller than the diameter of the outer catheter, located at a distal end of the capture device,
• wherein the at least one capturing arm engages the previously deployed implant for withdrawing the implant into the outer catheter, while the diameter of the outer catheter, which is smaller than the deployed implant, causes the implant to collapse while being withdrawn by the capture device into the outer catheter.