Non-circular resection device and endoscope
First Claim
1. An operative head of a device for endolumenally treating a full-thickness portion of a wall of an organ, comprising:
- a housing having an endoscope channel extending therethrough for slidably receiving an endoscope therein, cross-sectional shape of the endoscope channel being substantially elliptical, the housing including a stapling mechanism having a plurality of staple firing chambers disposed around a portion of a periphery of the housing; and
an anvil member longitudinally moveable relative to the stapling mechanism between a tissue receiving position and a tissue stapling position, the anvil member being further moveable relative to the housing between a staple forming configuration in which staple forming grooves thereof are aligned with corresponding ones of the staple firing chambers and a high visibility configuration providing a field of vision of an endoscope received in the endoscope channel greater than that provided when the anvil member is in the staple forming configuration, wherein the staple forming grooves are disposed along a substantially elliptical path.
2 Assignments
0 Petitions
Accused Products
Abstract
A proximal housing for a full-thickness resection device (FTRD) is provided with a plurality of chambers through which fasteners are introduced into a portion of tissue to be resected. The proximal housing has a noncircular cut-out opposite the plurality of chambers to receive a noncircular endoscope. The proximal housing also is provided with a resection cavity into which the tissue to be resected is to be received. In addition, shaft openings are provided through which mounting shafts may be inserted. A noncircular endoscope is also disclosed for insertion into the cut-out whereby the endoscope has passages to house the functions of remote viewing, illumination, insufflation and irrigation.
1435 Citations
20 Claims
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1. An operative head of a device for endolumenally treating a full-thickness portion of a wall of an organ, comprising:
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a housing having an endoscope channel extending therethrough for slidably receiving an endoscope therein, cross-sectional shape of the endoscope channel being substantially elliptical, the housing including a stapling mechanism having a plurality of staple firing chambers disposed around a portion of a periphery of the housing; and an anvil member longitudinally moveable relative to the stapling mechanism between a tissue receiving position and a tissue stapling position, the anvil member being further moveable relative to the housing between a staple forming configuration in which staple forming grooves thereof are aligned with corresponding ones of the staple firing chambers and a high visibility configuration providing a field of vision of an endoscope received in the endoscope channel greater than that provided when the anvil member is in the staple forming configuration, wherein the staple forming grooves are disposed along a substantially elliptical path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for treating a full-thickness portion of a wall of a hollow organ, comprising:
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inserting a housing of a resection device into a hollow organ via a naturally occurring body orifice to a location proximate to a target portion of tissue to be resected, the housing including a substantially elliptical endoscope channel, a tissue cutting mechanism, a stapling mechanism having a plurality of staple firing chambers disposed in a substantially elliptical configuration around a portion of a periphery of the housing and an anvil longitudinally moveable relative to the stapling mechanism between tissue receiving and tissue stapling positions; advancing a substantially non-circular endoscope into the endoscope channel; moving the stapling mechanism to the tissue receiving position; drawing the target portion of tissue between the anvil and the stapling mechanism; moving the anvil to the stapling position; firing a plurality of staples from the staple firing chambers through the target portion of the tissue against the anvil; and actuating a knife to cut the target portion tissue from the stapled tissue. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A system for endolumenally treating a full-thickness portion of an organ, comprising:
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a non-circular endoscope; and a housing slidably receiving the endoscope within a substantially elliptical endoscope channel, the housing including a stapling mechanism having a plurality of staple firing chambers disposed around a portion of a periphery of the housing along a substantially elliptical path and an anvil longitudinally moveable relative to the stapling mechanism between a tissue receiving position and a tissue stapling position. - View Dependent Claims (18, 19, 20)
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Specification