Non-invasive measurement of fluid pressure in an adjustable gastric band
AssigneeEthicon Endo-Surgery, Inc.
InventorsWilliam Hassler, Russell Holscher, Lauren Perry
Life of this patent
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Abstract
A food intake restriction device for forming a restriction in a patient's gastro-intestinal tract and non-invasively communicating pressure data regarding the restriction to an external monitor. The device includes a food intake restriction device implanted substantially about a patient's gastro-intestinal tract to form a restricted opening in the tract. A port is connected to the restriction device. The port contains a working fluid for affecting the size of the restricted opening. A pressure sensing system communicates with the working fluid to measure the pressure of the working fluid. A transmitter communicates the measured fluid pressure to the external monitor.
Claims25
A method for non-invasively recording fluid pressure data for an implanted food intake restriction device, said method comprising the steps of:
- implanting a food intake restriction device in the gastro-intestinal tract of a patient;
- using a working fluid in the restriction device to form a restricted opening in the gastro-intestinal tract;
- determining the pressure in the restricted opening by measuring the pressure of the working fluid using a pressure sensor in communication with the working fluid;
- placing an external monitor adjacent the pressure sensor;
- and
- transmitting the measured pressure data from the pressure sensor to the external monitor.
A food intake restriction system for forming a restriction in a patient's gastro-intestinal tract and non-invasively communicating pressure data regarding the restriction to an external monitor, the system comprising:
- a food intake restriction device implanted to form a restriction in a patient's gastro-intestinal tract;
- an implanted port connected to the restriction device, the port containing a working fluid for affecting the size of the restriction in the gastro-intestinal tract;
- and
- a pressure sensing system in communication with the working fluid for measuring the pressure of the working fluid and transmitting pressure measurement data to the external monitor.
An implanted bariatric treatment device for forming a food intake restriction in a patient's gastro-intestinal tract and communicating the pressure of the restriction to an external monitor, the device comprising:
- a restriction member implanted in contact with the patient's stomach, the restriction member having a variable fluid volume for creating a food intake restriction in the stomach;
- a control operatively connected to the restriction member for varying the volume of the restriction member;
- and
- a pressure sensing system for measuring fluid pressure within the restriction member and non-invasively communicating the measured pressure to the external monitor, the measured pressure being proportional to the degree of restriction formed in the stomach.
Dependencies are inferred from the claim text.