A remotely controllable gastric banding device (10) for placement around the stomach of a patient for the treatment of obesity. The device (10) comprises a gastric band (10) having an inflatable chamber (16) for adjusting the inner circumference of the band (10), a pressurized reservoir (20) with a
A remotely controllable gastric banding device (10) for placement around the stomach of a patient for the treatment of obesity. The device (10) comprises a gastric band (10) having an inflatable chamber (16) for adjusting the inner circumference of the band (10), a pressurized reservoir (20) with a valve (31) for providing fluid to inflate the inflation chamber (16), a valve (32) for releasing fluid from the inflatable chamber (16), and a controller (41) for controlling the valves (31, 32). The controller (41) is remotely controllable from outside the patient.
대표청구항▼
1. A pressurized inflatable gastric banding system for placement around the stomach of a patient for treating obesity in the patient, comprising: a gastric band constructed to be placed around the stomach of the patient;an inflatable member positioned along an inner surface of the gastric band const
1. A pressurized inflatable gastric banding system for placement around the stomach of a patient for treating obesity in the patient, comprising: a gastric band constructed to be placed around the stomach of the patient;an inflatable member positioned along an inner surface of the gastric band constructed to adjust an inner circumference of the gastric band, the inflatable member having a pressure P2;a pressurized inlet reservoir selectively coupled to the inflatable member and constructed to contain a fluid, the inlet reservoir having a pressure P1 that remains greater than or equal to the pressure P2;an electrically powered inlet valve in fluid communication with the inlet reservoir and the inflatable member, the inlet valve being connected between the inlet reservoir and the inflatable member;an outlet reservoir selectively coupled to the inflatable member constructed to receive fluid from the inflatable member, the outlet reservoir having a pressure P3 that does not exceed the pressure P2; andan electrically powered outlet valve in fluid communication with the inflatable member and the outlet reservoir, the outlet valve connected between the inflatable member and the outlet reservoir; anda controller, coupled to the inlet valve and the outlet valve, constructed to actuate the inlet valve to release the fluid from the pressurized reservoir to control the flow of the fluid from the reservoir to the inflatable member and to actuate the outlet valve to release the fluid from the inflatable member to control the flow of the fluid from the inflatable member to the outlet reservoir, the controller constructed to be remotely controllable from outside of the patient, wherein the gastric band is constructed to form a smoothly surfaced circle around the stomach of the patient, and wherein the controller is constructed to actuate the inlet valve to fluidly couple only the inlet reservoir to the inflatable member and to actuate the outlet valve to fluidly couple only the outlet reservoir to the inflatable member. 2. The system of claim 1 wherein the inflatable member does not wrinkle or fold when adjusting the inner circumference of the gastric band. 3. The system of claim 2 wherein the gastric band is lockable in the smoothly surfaced circle. 4. The system according to claim 1, wherein the controller is constructed to transmit a control signal to the valves based on an externally transmitted signal. 5. The system according to claim 4, wherein the valves are constructed to receive the control signal. 6. The system according to claim 5, wherein the actuation of the valves is responsive to the received control signal. 7. The system according to claim 6, further including a receiver in communication with the controller, the receiver constructed to receive the externally transmitted signal. 8. An inflatable gastric banding apparatus for placement around the stomach of a patient for treating obesity in the patient, comprising: a gastric band constructed to be positioned around a stomach in a body of the patient, the gastric band having an inflatable chamber;a pressurized inlet fluid reservoir, selectively coupled to the inflatable chamber, constructed to passively provide a fluid to the inflatable chamber for inflating the inflatable chamber;an inlet valve coupled between the inflatable chamber and the inlet fluid reservoir;an outlet reservoir, selectively coupled to the inflatable chamber, constructed to passively receive fluid from the inflatable chamber for deflating the inflatable chamber; andan outlet valve coupled between the inflatable chamber and the outlet reservoir, the inflatable chamber constructed to passively provide the fluid to the outlet reservoir for deflating the inflatable chamber; anda controller constructed to actuate the inlet valve and the outlet valve, and wherein the controller is constructed to actuate the inlet valve to fluidly couple only the inlet reservoir to the inflatable chamber and to actuate the outlet valve to fluidly couple only the outlet reservoir to the inflatable chamber. 9. The apparatus of claim 8 wherein the fluid is a concentrated saline solution. 10. The apparatus of claim 8 wherein the controller is positioned external to the body of the patient. 11. The apparatus of claim 8 wherein the controller actuates the valve wirelessly. 12. The apparatus according to claim 8, wherein the controller is constructed to transmit a control signal to the valves based on an externally transmitted signal. 13. The apparatus according to claim 12, wherein the valves are constructed to receive the control signal. 14. The apparatus according to claim 13, wherein the actuation of the valves is responsive to the received control signal. 15. The apparatus according to claim 14, wherein the controller is communicatively coupled to a receiver, and is constructed to generate the control signal based on communication with the receiver. 16. The apparatus according to claim 8, wherein the inflatable chamber is constructed to receive body fluid from the body of the patient for further inflating the inflatable chamber, and wherein the gastric band is constructed to form a smoothly surfaced circle around the stomach of the patient. 17. The apparatus according to claim 8, wherein the inlet reservoir has a pressure P1 that remains greater than or equal to the pressure P2 and wherein the outlet reservoir has a pressure P3 that does not exceed the pressure P2. 18. A pressurized inflatable gastric banding system for placement around the stomach of a patient for treating obesity in the patient, comprising: a gastric band constructed to be positioned around a stomach in a body of the patient, the gastric band having an inflatable chamber;a pressurized inlet fluid reservoir, selectively coupled to the inflatable chamber, constructed to passively provide a pressurized fluid to the inflatable chamber for inflating the inflatable chamber;an inlet valve coupled between the inflatable chamber and the fluid reservoir;an outlet reservoir, selectively coupled to the inflatable chamber, constructed to passively receive fluid from the inflatable chamber for deflating the inflatable chamber; andan outlet valve coupled between the inflatable chamber and the outlet reservoir, the inflatable chamber constructed to passively provide the fluid to the outlet reservoir for deflating the inflatable chamber; anda controller, coupled to the inlet valve and the outlet valve, constructed to actuate the inlet valve to release the pressurized fluid from the pressurized reservoir to control the flow of the fluid from the reservoir to the inflatable member and to actuate the outlet valve to release the fluid from the inflatable member to control the flow of the fluid from the inflatable member to the outlet reservoir, the controller constructed to be remotely controllable from outside of the patient, and wherein the controller is constructed to actuate the inlet valve to fluidly couple only the inlet reservoir to the inflatable chamber and to actuate the outlet valve to fluidly couple only the outlet reservoir to the inflatable chamber.
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