Method and device for full thickness resectioning of an organ
First Claim
1. A full-thickness resection system for removing a full-thickness portion of a body organ using a flexible endoscope, the system comprising:
- a stapling mechanism which, in an operative position is located within a body of a patient, wherein the endoscope is slidably received through at least a portion of the stapling mechanism, the stapling mechanism comprising;
an anvil;
a stapling head rotatably coupled to the anvil so that the anvil and the stapling head may rotate with respect to one another between a tissue receiving position and a stapling position, wherein a gap formed between the stapling head and the anvil is larger in the tissue receiving position than it is in the stapling position;
a position adjusting mechanism for rotating at least one of the anvil and the stapling head relative to the other of the anvil and the stapling head between the tissue receiving and stapling positions;
a staple firing mechanism for sequentially firing, when the stapling head and the anvil are in the stapling position, staples received in the stapling head from the stapling head across the gap against the anvil and through any tissue received in the gap, anda knife for cutting a portion of tissue received within the gap;
a blade shield attached to said anvil or said stapling head and adapted to define a blade gap through which said blade travels, said blade gap having a width corresponding to a width of said knife, said blade shield disposed to resist movement of a portion of the tissue encountered by said knife, anda control unit which, when the stapling head is in the operative position, remains outside the body, the control unit being coupled to the stapling mechanism for controlling operation of the position adjusting mechanism and the staple firing mechanism.
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Accused Products
Abstract
A full-thickness resection system comprises a flexible endoscope and a stapling mechanism, wherein the endoscope is slidably received through at least a portion of the stapling mechanism. The stapling mechanism comprises an anvil and a stapling head mounted to the anvil so that the anvil and the stapling head are moveable with respect to one another between a tissue receiving position and a stapling position and wherein a gap formed between the stapling head and the anvil is larger in the tissue receiving position than it is in the stapling position. A position adjusting mechanism is provided for moving the anvil and the stapling head between the tissue receiving and stapling positions and a staple firing mechanism sequentially fires a plurality of staples from the stapling head across the gap against the anvil and through any tissue received in the gap and a knife cuts a portion of tissue received within the gap. A control unit which remains outside the body is coupled to the stapling mechanism for controlling operation of the position adjusting mechanism and the staple firing mechanism.
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Citations
18 Claims
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1. A full-thickness resection system for removing a full-thickness portion of a body organ using a flexible endoscope, the system comprising:
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a stapling mechanism which, in an operative position is located within a body of a patient, wherein the endoscope is slidably received through at least a portion of the stapling mechanism, the stapling mechanism comprising; an anvil; a stapling head rotatably coupled to the anvil so that the anvil and the stapling head may rotate with respect to one another between a tissue receiving position and a stapling position, wherein a gap formed between the stapling head and the anvil is larger in the tissue receiving position than it is in the stapling position; a position adjusting mechanism for rotating at least one of the anvil and the stapling head relative to the other of the anvil and the stapling head between the tissue receiving and stapling positions; a staple firing mechanism for sequentially firing, when the stapling head and the anvil are in the stapling position, staples received in the stapling head from the stapling head across the gap against the anvil and through any tissue received in the gap, and a knife for cutting a portion of tissue received within the gap; a blade shield attached to said anvil or said stapling head and adapted to define a blade gap through which said blade travels, said blade gap having a width corresponding to a width of said knife, said blade shield disposed to resist movement of a portion of the tissue encountered by said knife, and a control unit which, when the stapling head is in the operative position, remains outside the body, the control unit being coupled to the stapling mechanism for controlling operation of the position adjusting mechanism and the staple firing mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of performing a full-thickness resection of tissue within a substantially tubular body organ comprising the steps of:
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inserting a stapling mechanism slidably coupled to an endoscope into a tubular body organ via a body orifice, wherein the stapling mechanism includes a stapling head and an anvil rotatably coupled to one another for rotation between a stapling position and a tissue receiving position, wherein a gap formed between the stapling head and the anvil is smaller in the stapling position than in the tissue receiving position; rotating the stapling mechanism into the tissue receiving position, drawing a section of wall tissue of the body organ to be resectioned into the gap; rotating the stapling mechanism into the stapling position; firing a plurality of staples through the tissue received in the gap; after the staples have been fired cutting away from the wall of the body organ a portion of the section of wall tissue to be resectioned; and resisting movement of all wall tissue extending inwardly from said plurality of staples during said cutting step, whereby said portion of said wall tissue is completely severed. - View Dependent Claims (15, 16, 17, 18)
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Specification