Intragastric implant devices
First Claim
1. A method for treating a patient having a metabolic related disorder, said method comprising:
- deploying an implant within a gastrointestinal tract of the patient so that a proximal end of an anchor of the implant is disposed within a stomach of the patient while a distal end of the anchor is disposed distal of a pyloric valve of the gastrointestinal tract, the anchor having a proximal atraumatic feature at the proximal end and a distal atraumatic feature at a distal end with an elongate element extending therebetween, wherein the distal atraumatic feature comprises a distal portion that engages against a mucosal surface of the duodenum and remains entirely distal of the pyloric valve so as to maintain the distal end within the duodenum distal of the pyloric valve when the implant is deployed;
supporting a sleeve of the implant with the anchor so that the sleeve extends along an intestine of the patient, and so that a flow including ingested matter enters a lumen of the sleeve from the stomach, the flow being in contact with a wall of the stomach;
inhibiting advancement of the anchor around a bend of the intestine near the stomach by engaging a proximal portion of the anchor against a surface area of a mucosa of the stomach, by engaging the distal portion of the distal feature of the anchor against a mucosal surface area of the duodenum, and by resisting bending of the elongate element between the proximal and distal ends; and
advancing the flow along the intestine within the lumen of the sleeve, the ingested matter comprising ingested nutrients and particles of food.
1 Assignment
0 Petitions
Accused Products
Abstract
An intragastric anchor implant device is provided with a substantially rigid member having proximal and distal ends and atraumatic tips or features disposed near the proximal and distal ends. The atraumatic features prevent damage to the tissues of the stomach and the gastrointestinal track and may help to anchor the device in the stomach, while the substantially rigid member resists bending so as to engage a tissue of the stomach or the gastrointestinal tract to prevent passage through the stomach. The anchor implant device is coupled with a therapeutic device, typically a sleeve, such as an intestinal bypass sleeve. Ideally, the device includes a sliding seal to direct a flow of food particles from the stomach through the sleeve, so as to be useful in treating a disorder, including obesity and diabetes. Methods of deploying the anchor implant devices are also disclosed.
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Citations
54 Claims
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1. A method for treating a patient having a metabolic related disorder, said method comprising:
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deploying an implant within a gastrointestinal tract of the patient so that a proximal end of an anchor of the implant is disposed within a stomach of the patient while a distal end of the anchor is disposed distal of a pyloric valve of the gastrointestinal tract, the anchor having a proximal atraumatic feature at the proximal end and a distal atraumatic feature at a distal end with an elongate element extending therebetween, wherein the distal atraumatic feature comprises a distal portion that engages against a mucosal surface of the duodenum and remains entirely distal of the pyloric valve so as to maintain the distal end within the duodenum distal of the pyloric valve when the implant is deployed; supporting a sleeve of the implant with the anchor so that the sleeve extends along an intestine of the patient, and so that a flow including ingested matter enters a lumen of the sleeve from the stomach, the flow being in contact with a wall of the stomach; inhibiting advancement of the anchor around a bend of the intestine near the stomach by engaging a proximal portion of the anchor against a surface area of a mucosa of the stomach, by engaging the distal portion of the distal feature of the anchor against a mucosal surface area of the duodenum, and by resisting bending of the elongate element between the proximal and distal ends; and advancing the flow along the intestine within the lumen of the sleeve, the ingested matter comprising ingested nutrients and particles of food. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An implant for treating a patient having a metabolic related disorder, said implant comprising:
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an anchor having an elongate element extending between a proximal end and a distal end, a proximal atraumatic feature disposed near the proximal end, and a distal atraumatic feature disposed near the distal end; the proximal atraumatic feature configured to inhibit tissue trauma when urged against a surface area along a mucosa of a stomach of the patient, the distal atraumatic feature configured to inhibit tissue trauma when urged against a surface of a duodenum of a gastrointestinal tract of the patient, wherein the distal atraumatic feature comprises a plurality of flexible struts arranged in a radial array and is adapted to engage a surrounding mucosal surface within the duodenum so as to maintain the distal end of the anchor entirely distal of the pyloric valve while the proximal end remains disposed within the stomach when the implant is deployed, and the elongate element being substantially rigid so as to resist bending between the proximal and distal ends and sufficiently long so that the anchor is configured to inhibit advancement of the anchor around a bend of the intestine near the stomach when under the anchoring loads; and an intestinal bypass sleeve having a lumen extending between a proximal opening and a distal opening, wherein the sleeve comprises a material substantially impenetrable to a flow including ingested matter when passed through the lumen, the flow of matter being in contact with a wall of the stomach, the proximal opening supported distally of the proximal end of the anchor and remaining distal of the proximal end of the anchor when deployed so that the flow flows from within the stomach into the lumen. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 52, 53, 54)
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50. An implant for treating a patient having a metabolic related disorder, said implant comprising:
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an anchor having an elongate element extending between a proximal end and a distal end, a proximal atraumatic feature disposed near the proximal end, and a distal atraumatic feature disposed near the distal end; the proximal atraumatic feature configured to inhibit tissue trauma when urged against a surface area along a mucosa of a stomach of the patient, the distal atraumatic feature configured to inhibit tissue trauma when urged against a mucosal surface of a duodenum of a gastrointestinal tract of the patient, and the elongate element being substantially rigid so as to resist bending between the proximal and distal ends and sufficiently long so that the anchor is configured to inhibit advancement of the anchor around a bend of the intestine near the stomach when under the anchoring loads, wherein the distal atraumatic feature comprises a plurality of flexible struts arranged in a radial array and is adapted to reside within the duodenum by engagement with the mucosal surface area of the duodenum so as to maintain the distal end of the anchor entirely distal of the pyloric valve while the proximal atraumatic feature remains disposed within the stomach when the implant is deployed; and a therapeutic device supported by the anchor within the gastrointestinal tract such that the therapeutic device resides in the gastrointestinal tract distal of the pyloric valve. - View Dependent Claims (51)
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Specification