Systems and methods for removing ingested material from a stomach
View Patent ↗When a patient is fitted with an external gastrostomy connection to the stomach, ingested food can be removed through the gastrostomy connection using a pump-based or siphon-based system to achieve weight loss. The process of removing ingested food can be improved by alternating the infusion of liquid into the stomach with the removal of material from the stomach. Optionally, stomach acid may be captured and returned to the stomach. Optionally, nutritional supplements or medicines may be added to the infused liquid. Optionally, a flush mount connectorized system with a built in valve may be used to simplify the interface with the gastrostomy hardware that remains installed in the patient. Optionally, the system may be configured to disable itself from further use after a triggering event (e.g., the passage of time or a predetermined number of uses) has occurred.
1. An apparatus for removing food from a patient's stomach via a gastrostomy tube that passes through the patient's abdominal wall into the patient's stomach, the apparatus comprising:
a connector configured to connect to a proximal end of the gastrostomy tube with a fluid tight connection;
a first fluid path provided between the connector and a drain port, configured to permit draining food from the patient's stomach out to the drain port;
a second fluid path provided between the connector and an input port, configured to permit infusion of fluid from the input port into the patient's stomach; and
a fluid circuit configured to alternately (a) open the first fluid path during a first interval of time to permit draining food out of the patient's stomach and (b) open the second fluid path during a second interval of time to permit infusion of the liquid through the input port and into the patient's stomach;
wherein the first fluid path and the second fluid path share a common portion that is located adjacent to the connector.
2. The apparatus of claim 1 , further comprising a pump coupled to the first fluid path for pumping content from the stomach through the first fluid path.
3. The apparatus of claim 1 , wherein the fluid circuit comprises an actuator and at least one valve.
4. The apparatus of claim 3 , wherein the actuator has a first position that causes the at least one valve to open the first fluid path and close the second fluid path, and wherein the actuator has a second position that causes the at least one valve to close the first fluid path and open the second fluid path.
5. The apparatus of claim 3 , wherein the at least one valve is a blade occluder.
6. The apparatus of claim 3 , wherein the at least one valve is a check valve.
7. The apparatus of claim 3 , wherein the actuator is configured to alternately (i) open the first fluid path and (ii) close the first fluid path.
8. The apparatus of claim 1 , further comprising a reservoir for holding liquid to be infused into the patient's stomach, wherein a fluid outlet of the reservoir is connected to the input port.
9. The apparatus of claim 8 , wherein the reservoir includes a pump for pumping fluid through the connector and into the stomach.