Clip device and protective cap, and methods of using the protective cap and clip device with an endoscope for grasping tissue endoscopically
First Claim
1. A clip device delivery apparatus for use with an introducer tube, comprising:
- a haemostatic clip device detachably operatively coupled to an elongate deployment device, the clip device comprising a plurality of arms movable between a radially expanded position and a closed position; and
a protective cap comprising a proximal tube mounting section and a distal section, the proximal tube mounting section comprising a lumen and the distal section comprising a clip arm receiving chamber that is configured to accommodate radial expansion of the clip arms, whereby the proximal tube mounting section lumen is configured to detachably receive a distal end portion of said introducer tube.
1 Assignment
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Accused Products
Abstract
A clip device delivery apparatus for hemostasis has an introducer tube, such as an endoscope or sheath having a distal end portion and working channel receiving an operating wire detachably securing a clip device comprising tissue engaging arms and a sliding ring for closing the arms. A protective cap having a tube mounting section and a distal section having a receiving chamber define a passageway therebetween, the mounting section being mounted to the introducer tube distal end portion and the distal section receiving tissue and clip arms to close about tissue. The operating wire and clip device are inserted within the working channel. Methods of grasping tissue are provided using the introducer tube introduced endoscopically into a patient, tissue suctioned and clip arms deployed into tissue receiving chamber, sliding ring moved distally to close the clip arms about the tissue, and the clip detached from the operating wire.
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Citations
28 Claims
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1. A clip device delivery apparatus for use with an introducer tube, comprising:
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a haemostatic clip device detachably operatively coupled to an elongate deployment device, the clip device comprising a plurality of arms movable between a radially expanded position and a closed position; and
a protective cap comprising a proximal tube mounting section and a distal section, the proximal tube mounting section comprising a lumen and the distal section comprising a clip arm receiving chamber that is configured to accommodate radial expansion of the clip arms, whereby the proximal tube mounting section lumen is configured to detachably receive a distal end portion of said introducer tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for delivering a clip device endoscopically, comprising
an endoscope having a flexible distal insertion section with a distal end portion comprising light source, and a viewing lens for visualizing an interior of an internal region of a body, and a working channel extending to a distal opening at or near the distal end portion and opening into an observation field and working space of the endoscope, and a suction port configured to provide suction for drawing target tissue toward the distal end portion of the distal insertion section; -
a haemostatic clip device detachably operatively coupled to an elongate deployment device, the clip device comprising a plurality of arms movable between a radially expanded position and a closed position; and
a protective cap having a proximal endoscope mounting section with a proximal opening and endoscope receiving lumen, an endoscope stop protruding inwardly toward the lumen and having a passageway allowing communication between the mounting section and a distal tissue receiving section having a tissue receiving chamber and a distal opening, the clip arm receiving chamber that is configured to accommodate radial expansion of the clip arms;
whereby the proximal endoscope mounting section lumen is configured to detachably receive the distal end portion of the endoscope distal insertion section. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method of grasping tissue endoscopically using an endoscope having a flexible distal insertion section with a distal end portion comprising light source, and a viewing lens for visualizing an interior of an internal region of a body, and a working channel extending to a distal opening at or near the distal end portion and opening into an observation field and working space of the endoscope, and a suction port configured to provide suction for drawing target tissue toward the distal end portion of the distal insertion section, the method comprising the steps of:
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providing a protective cap having a proximal endoscope mounting section with a proximal opening and endoscope receiving lumen, an endoscope stop protruding inwardly toward the lumen and having a passageway allowing communication between the mounting section and a distal tissue receiving section having a tissue receiving chamber and a distal opening;
detachably securing the protective cap mounting section to said endoscope distal insertion portion received within the protective cap endoscope receiving lumen in a substantially airtight engagement;
inserting an elongate operating wire into said endoscope working channel, the operating wire comprising a distal end detachably operatively coupled to a haemostatic clip device that has at least two arms configured to be movable between a radially expanded position and a closed position;
introducing the protective cap and endoscope flexible distal insertion portion assembly into a body for grasping said tissue;
disposing the clip arms within the protective cap tissue receiving chamber to allow the clip arms to expand to a tissue receiving expanded position; and
suctioning said tissue into the tissue receiving chamber between at least two of the clip arms. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification