Incisionless gastric bypass method and devices
AssigneeMichael Gagner
InventorsMichel Gagner, David J. Blaeser, Todd A. Krinke, Philip J. Haarstad
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Abstract
A system and method for endoscopically forming an anastomosis between two naturally adjacent points in the digestive tract. The system and method utilizes elongate magnetic devices that, when connected across a tissue boundary, necrose tissue until an anastomosis forms and the devices are passed naturally. Despite the elongate shape of the devices, the resulting anastomosis is substantially round. As such, round anastomoses can be formed having increased diameters merely by increasing the lengths of the devices, obviating the need for wider endoscopes.
Claims21
A method of forming a round anastomosis between two points in a digestive tract of a patient, the method comprising the steps of:
- navigating a first endoscope to a first point in the digestive tract and navigating a second endoscope to a second point in the digestive tract, each of the first and second endoscopes carrying an elongated magnetic implant having a distal end with a first polarity and a proximal end with a second polarity and an elongated flat contact surface, each of the elongated magnetic implants having a length/width ratio of between about 4:1 and about 15:1;
- positioning the elongated magnetic implants such that the distal and proximal ends of the elongated magnetic implant of the first endoscope are attracted to the proximal and distal ends of the elongated magnetic implant of the second endoscope, such that the elongated flat contact surface face each other and tissue is compressed between the elongated flat contact surface of the elongated magnetic implants;
- and
- releasing the elongated magnetic implants.
A method for forming a round anastomosis between two adjacent vessel walls of a digestive tract, the method comprising:
- releasably engaging a first elongated magnetic implant with a distal end of a first delivery catheter insertable in a working channel of a first endoscope;
- and
- releasably engaging a second elongated magnetic implant with a distal end of a second delivery catheter insertable in a working channel of a second endoscope;
- each of the first and second elongated magnetic implants comprising:
- a magnet having two opposed ends;
- and
- a housing configured to receive the magnet therein, the housing comprising:
- an elongated flat contact surface;
- and
- a connecting member connectable to a corresponding connector extending from a lumen of a corresponding delivery catheter to be releasably engageable with the connector;
- magnetically coupling the first and second elongated magnetic implants to each other through the two adjacent vessel walls of the digestive tract to compress a portion of the two adjacent vessel walls between the elongated flat contact surface of each housing, each elongated magnetic implant having a width defined between two opposed sides thereof and a length defined between two opposed ends thereof, wherein the length and the width provide a length/width ratio of between about 4:1 and about 15:1.
A method for forming a round anastomosis between two adjacent vessel walls of a digestive tract, the method comprising:
- releasably engaging a first elongated magnetic implant and a second elongated magnetic implant with respective endoscopes;
- and
- magnetically coupling a respective flat contact surface of the first elongated magnetic implant and the second elongated magnetic implant to each other through the two adjacent vessel walls of the digestive tract to compress a portion of the two adjacent vessel walls therebetween;
- each elongated magnetic implant having a width defined between two opposed sides thereof and a length defined between two opposed ends thereof, wherein the length and the width provide a length/width ratio of between about 4:1 and about 15:1.
A method for delivering a first elongated magnetic implant into a first vessel of a digestive tract and a second elongated magnetic implant into a second vessel of the digestive tract, each of the first and second elongated magnetic implant comprising an elongated flat contact surface, the method comprising the steps of:
- releasably engaging the first elongated magnetic implant and the second elongated magnetic implant with a distal end of a respective one of a first delivery catheter and second delivery catheter,
- loading each of the delivery catheters into a working channel of a respective one of a first delivery endoscope and a second delivery endoscope;
- and
- positioning each of the first and second magnetic implant longitudinally along the longitudinal axis of the respective one of the first and second endoscopes;
- each elongated magnetic implant having a width defined between two opposed sides thereof and a length defined between two opposed ends thereof, wherein the length and the width provide a length/width ratio of between about 4:1 and about 15:1.
Dependencies are inferred from the claim text.