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US 2023/0404609 A1Published application
Systems and Methods for Duodenal Mucosal Resection
OwnerVirender K. Sharmainventor
Life of this patent
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Abstract
Methods and systems are provided for an endoscopic tissue resection and or tissue removal device for use with an endoscope. The distal end of the endoscope includes the resection device with one or more elastic bands and shape memory material anchors associated with each band. Post-deployment of a band from the distal end of the endoscope, the associated shape memory material provides an anchor into the target mucosal tissue that the deployed band is positioned to constrict.
Claims22
A device for resecting a body tissue, comprising:
- a cap configured to attach to a distal end of an endoscope wherein the cap comprises a central lumen;
- a suction source configured to apply a negative pressure through the central lumen of the cap;
- and
- at least one resection component positioned around an outer surface of the cap, wherein the at least one resection component has an inner surface comprising at least one anchor, wherein the at least one resection component comprises a first material, the at least one anchor comprises a second material, and wherein the first material is different from the second material, wherein the at least one resection component is configured to change from a first configuration when positioned on the cap to a second configuration once deployed, wherein, in the second configuration, the at least one resection component is configured to encircle a portion of said body tissue with the at least one anchor contacting the tissue to secure the resection component to constrict the tissue and reduce blood flow to the tissue.
1 more element
A method for resecting a body tissue in a patient, comprising:
- providing a device configured to pass through an endoscope comprising:
- a cap positioned on the distal end of the device, wherein the cap comprises a central lumen;
- and
- at least one resection component positioned around an outer surface of the cap, wherein the at least one resection component has an inner surface comprising at least one anchor, wherein the at least one resection component is configured to change from a first configuration when positioned on the cap to a second configuration once deployed off the cap, wherein, in the second configuration, the at least one resection component is configured to encircle a portion of said body tissue, anchor into the tissue using the anchor, and to constrict the tissue and reduce blood flow to the tissue;
- inserting the device through the endoscope into the patient and advancing the device such that a distal end of the device is positioned in a gastrointestinal tract of the patient;
- activating a suction source to apply a negative pressure through the central lumen of the cap;
- drawing a portion of body tissue into the central lumen of the cap, wherein the portion includes at least 1 square centimeters of body tissue;
- deploying at least one resection component from the device around a base of the body tissue;
- removing the device from the patient;
- permitting the at least one resection component to remain around the body tissue and to cut off blood flow to the body tissue.
7 more elements
Dependencies are inferred from the claim text.