Gastrointestinal tool over guiding element
First Claim
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1. A gastrointestinal apparatus comprising:
- a guiding element carrying an inflatable mechanical gastrointestinal device and a gastrointestinal tool adapted to be advanced along the guiding element, said guiding element configured to be introduced through a return into a colon of a patient;
a piston head coupled to the guiding element;
a pressure generating means for generating fluid pressure in the colon when said guiding element is introduced into the colon;
a vent tube shaped so as to define an opening distal to the piston head to facilitate passage of fluid out of the colon from a site distal to the piston head; and
a guide member for being at least partially insertable into a proximal opening of said colon, the guide member being formed with a passageway connectable to said pressure generating means and for conveying the fluid pressure into the colon for inflating the colon when the guide member is inserted into the colon, and applying the fluid pressure on an external surface of the piston head;
the gastrointestinal apparatus being configured to facilitate distal advancement of the piston head by facilitating passage of fluid out of the colon from a distal site within the colon distal to the piston head via the vent tube, andsaid piston head being configured to be inflated so as to form a pressure seal with a wall of the colon, and to be advanced distally due to the fluid pressure applied over an external surface of the piston head, whereby greater fluid pressure acts on a proximal side of the piston head than on a distal side of the piston head.
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Abstract
Gastrointestinal apparatus (10) is provided, including a guiding element (16) and an inflatable mechanical device (96), adapted to pull the guiding element (16) through a colon of a patient. A gastrointestinal tool (12) is shaped to define a bore (14) therethrough, and the guiding element (16) is adapted to pass through the bore (14). Other embodiments are also described.
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Citations
30 Claims
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1. A gastrointestinal apparatus comprising:
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a guiding element carrying an inflatable mechanical gastrointestinal device and a gastrointestinal tool adapted to be advanced along the guiding element, said guiding element configured to be introduced through a return into a colon of a patient; a piston head coupled to the guiding element; a pressure generating means for generating fluid pressure in the colon when said guiding element is introduced into the colon; a vent tube shaped so as to define an opening distal to the piston head to facilitate passage of fluid out of the colon from a site distal to the piston head; and a guide member for being at least partially insertable into a proximal opening of said colon, the guide member being formed with a passageway connectable to said pressure generating means and for conveying the fluid pressure into the colon for inflating the colon when the guide member is inserted into the colon, and applying the fluid pressure on an external surface of the piston head; the gastrointestinal apparatus being configured to facilitate distal advancement of the piston head by facilitating passage of fluid out of the colon from a distal site within the colon distal to the piston head via the vent tube, and said piston head being configured to be inflated so as to form a pressure seal with a wall of the colon, and to be advanced distally due to the fluid pressure applied over an external surface of the piston head, whereby greater fluid pressure acts on a proximal side of the piston head than on a distal side of the piston head. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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3. The gastrointestinal apparatus according;
- to claim, wherein the gastrointestinal tool is shaped to define a chamfer for facilitating passage through a lumen.
Specification
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Current AssigneeG.I. View Ltd.
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Original AssigneeG.I. View Ltd.
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InventorsGoldwasser, Benad, Cabiri, Oz, Gross, Yossi
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Primary Examiner(s)Stigell, Theodore
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Assistant Examiner(s)Price, Nathan R
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Application NumberUS11/813,457Publication NumberTime in Patent Office3,225 DaysField of Search604/41, 604/42, 604/95.01, 604/95.03, 604/96.01, 604/103.06, 604/103.07, 604/104, 60416408-16411, 604275-279, 604/514, 600/114, 600/115, 600433-435, 600/585, 606/192, 606/197US Class Current600/115CPC Class CodesA61B 1/00082 BalloonsA61B 1/0014 Fastening element for attac...A61B 1/00156 using self propulsionA61B 1/01 Guiding arrangements thereforeA61B 1/31 for the rectum, e.g. procto...
