| 摘要 |
Embodiments of the disclosure may include a method for providing access within a patient that may include inserting a medical device through an opening of the patient. The medical device may include an overtube having a lumen and a slot and an elongate member disposed within the lumen of the overtube, wherein the elongate member may include an expandable member configured to expand and collapse. The method may further include positioning the medical device proximate a site in the patient, positioning the overtube relative to the elongate member such that a portion of the expandable member faces the slot, and the slot faces the site, and expanding the portion of the expandable member out of the slot and toward the site. |
