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US 10,869,683 B2Granted
Systems and methods for submucosal tissue separation
AssigneeBoston Scientific Scimed, Inc.
InventorsShawn Ryan, Samuel Raybin, Matthew B. Hollyer
Life of this patent
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Abstract
The present disclosure relates to the field of medical devices generally and specifically, to endoscopic systems and methods for resection of malignant and pre-malignant lesions within the gastrointestinal (GI) tract. In particular, the present disclosure relates to systems and methods for delivering injectable compositions between tissue layers (e.g., between the muscularis and submucosa layers) to elevate and stabilize the lesion for fast and efficient resection.
Claims20
A system, comprising:
- a delivery device comprising a proximal portion, distal portion, a lumen extending therebetween;
- a first injectable composition disposed within the distal portion of the delivery device;
- and
- a second injectable composition disposed within the proximal portion of the delivery device;
- wherein the delivery device is configured to (a) extend through a working channel of an endoscope that comprises a proximal end, a distal end and said working channel such that a distal end of the delivery device extends into tissue beyond the distal end of the endoscope and such that the distal end of the delivery device is positioned between adjacent first and second tissue layers and (b) inject the first and second injectable compositions between the first and second layers;
- and
- wherein a viscosity of the first injectable composition is less than a viscosity of the second injectable composition;
- wherein the first and second injectable compositions are separated by a barrier member;
- and
- wherein the barrier member is formed from a destructible membrane configured to rupture after the first injectable composition has been discharged from the distal portion of the delivery device.
7 more elements
A system, comprising:
- a delivery device comprising a proximal portion, distal portion, a lumen extending therebetween;
- a first injectable composition disposed within the distal portion of the delivery device;
- a second injectable composition disposed within the proximal portion of the delivery device;
- and
- an endoscope comprising a proximal end, a distal end and a working channel;
- wherein the delivery device is configured to extend through the working channel of the endoscope and to inject the first and second injectable compositions into tissue beyond the distal end of the endoscope;
- and
- wherein a viscosity of the first injectable composition is less than a viscosity of the second injectable composition;
- wherein the first and second injectable compositions are separated by a barrier member;
- and
- wherein the barrier member is formed from a destructible membrane configured to rupture after the first injectable composition has been discharged from the distal portion of the delivery device.
8 more elements
Dependencies are inferred from the claim text.