Pressure-propelled system for body lumen
First Claim
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1. Apparatus for use with a biologically-compatible-fluid pressure source, comprising:
- an elongate carrier, adapted to be inserted through a proximal opening of a colon of a GI tract;
an inflatable distal piston head coupled to a distal portion of the carrier and adapted to;
be in direct contact with a wall of the colon when the carrier is inserted into the colon, by being inflated, so as to attain and maintain the direct contact with the wall of the colon,be advanced distally through the colon in response to pressure from the fluid pressure source impinging on a proximal side of the piston head, while the piston is in the inflated state, andfacilitate passage of fluid out of the colon from a site within the colon distal to the piston head;
a pressure sensor, adapted to measure a first pressure associated with operation of the apparatus; and
a control unit, adapted to regulate a second pressure associated with operation of the apparatus responsive to the measurement of the pressure sensor.
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Abstract
Apparatus is provide for use with a fluid pressure source, including an elongate carrier, adapted to be inserted through a proximal opening of a body lumen, and a distal piston head coupled to a distal portion of the carrier. The piston head is adapted to be in direct contact with a wall of the lumen when the carrier is inserted into the lumen, and to be advanced distally through the body lumen in response to pressure from the fluid pressure source. Additionally, the piston head is typically adapted to facilitate passage of fluid out of the lumen from a site within the lumen distal to the piston head.
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Citations
36 Claims
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1. Apparatus for use with a biologically-compatible-fluid pressure source, comprising:
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an elongate carrier, adapted to be inserted through a proximal opening of a colon of a GI tract; an inflatable distal piston head coupled to a distal portion of the carrier and adapted to; be in direct contact with a wall of the colon when the carrier is inserted into the colon, by being inflated, so as to attain and maintain the direct contact with the wall of the colon, be advanced distally through the colon in response to pressure from the fluid pressure source impinging on a proximal side of the piston head, while the piston is in the inflated state, and facilitate passage of fluid out of the colon from a site within the colon distal to the piston head; a pressure sensor, adapted to measure a first pressure associated with operation of the apparatus; and a control unit, adapted to regulate a second pressure associated with operation of the apparatus responsive to the measurement of the pressure sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method, comprising:
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placing into a body lumen of a subject an inflatable distal piston head that is coupled to an elongate carrier; gutting the inflatable distal piston head in direct contact with a wall of the body lumen by inflating the piston head; advancing the piston head distally through the body lumen by conveying fluid pressure from a site outside of the subject to an external proximal surface of the distal piston head; and facilitating passage of fluid out of the lumen from a site within the lumen distal to the piston head. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification