Endoscopic multifunctional accessory channel device
A multifunctional accessory channel device is disclosed. The device comprises a tube, a proximal adapter for attachment of the tube to a control section of an endoscope, and a distal adapter for attachment of the tube at or near a distal tip of an endoscope. The tube has a slit that is reversibly locally openable along the length and the depth of the slit by translation of a portion of an accessory through and along the slit but is otherwise fully closed. The tube has a distal end shaped as a notch. The device allows for removal of large specimens from the body of a patient by use of an endoscope without need for removing the endoscope from its position within the body. The device also serves as a secondary channel, allowing for use of other endoscopic instruments or for accessory suction.
1. A multifunctional accessory channel device comprising a tube, a proximal adapter for attachment of the tube to a control section of an endoscope, and a distal adapter for attachment of the tube at or near a distal tip of an endoscope, wherein:
the tube comprises a tube body, a proximal end, a proximal opening, a distal end, and a distal opening;
the tube defines a channel internal to the tube extending from the proximal opening to the distal opening;
the tube has an outer surface and an inner surface;
the tube has a slit that extends continuously along the tube from a proximal portion of the tube to a distal portion of the tube and continuously through the tube from the outer surface of the tube to the inner surface of the tube;
the distal portion of the tube to which the slit extends is a portion of the tube adjacent to the distal end of the tube;
the slit has a proximal end and a distal end;
the slit has a length that is the distance from the proximal end of the slit to the distal end of the slit;
the slit has a depth that is the distance from the outer surface of the tube to the inner surface of the tube;
the slit is reversibly locally openable along the length and the depth of the slit by translation of a portion of an accessory through and along the slit but is otherwise fully closed;
the proximal opening of the tube is located at the proximal end of the tube;
the distal end of the tube is shaped as a notch that has opposing notch sides that extend distally from the distal end of the slit along the distal end of the tube, diverge distally, and form the distal opening of the tube;
the proximal adapter comprises a proximal adapter body, a first component to attach the tube to the proximal adapter body at or near the proximal end of the tube, and a second component to attach the proximal adapter body to a control section of an endoscope;
the distal adapter for attachment of the tube at or near a distal tip of an endoscope comprises a first surface for attachment of the tube to the distal adapter at or near the distal end of the tube, a second surface for attachment of the distal adapter to the endoscope at or near the distal tip of the endoscope, and a distal adapter body therebetween; and
the tube is attached to the first surface of the distal adapter at or near the distal end of the tube.
2. The multifunctional accessory channel device according to claim 1 , wherein the proximal portion of the tube from which the slit extends comprises the proximal end of the tube.
3. The multifunctional accessory channel device according to claim 1 , wherein the proximal portion of the tube from which the slit extends comprises a portion of the tube adjacent the proximal end of the tube.
4. The multifunctional accessory channel device according to claim 1 ,
wherein the tube has an internal diameter of 2.0 to 4.5 mm.
5. The multifunctional accessory channel device according to claim 1 , wherein the tube has an external diameter of 3.0 to 5.5 mm.
6. The multifunctional accessory channel device according to claim 1 , wherein the tube has a wall thickness of 1.0 to 0.70 mm.
7. The multifunctional accessory channel device according to claim 1 , wherein the tube has a length of 90 cm to 200 cm.
8. The multifunctional accessory channel device according to claim 1 , further comprising one or more of a fitting, a plug, a cap, or a connector, the fitting, the plug, the cap, or the connector being attached to the tube at the proximal end of the tube.
9. The multifunctional accessory channel device according to claim 1 , wherein the notch is V-shaped or U-shaped.
10. The multifunctional accessory channel device according to claim 1 , wherein the notch is beveled or curved.
11. The multifunctional accessory channel device according to claim 1 , wherein the first component to attach the tube to the proximal adapter includes a slot, groove, or other depression into which the tube fits and to which the tube can be secured.
12. The multifunctional accessory channel device according to claim 1 , wherein the second component to attach the proximal adapter to a control section of an endoscope comprises strap, band, or other fastener that is attached to the proximal adapter and that can be wrapped around a portion of the control section of an endoscope.