Single sided transoral endoscopic gastroesophageal flap valve restoration device
A transoral gastroesophageal flap valve restoration device includes a single hinge coupling an arm to a body between which stomach tissue is folded to form a restored gastroesophageal flap valve. The device includes a drive mechanism that imparts reciprocal movement to the arm relative to the body. The drive mechanism includes a pulley of sufficient diameter to provide a mechanical advantage in imparting reciprocating movement of the arm relative to the body.
1 . A transoral gastroesophageal flap valve restoration device comprising:
a body;
an arm extending from the body;
a single hinge coupling the arm to the body; and
a drive mechanism that imparts reciprocating movement to the arm relative to the body.
2 . The device of claim 1 wherein the drive mechanism includes a pulley coupled to the arm and a drive cable at least partially wrapped about the pulley.
3 . The device of claim 2 wherein the body has a longitudinal dimension, wherein the pulley has a center axis substantially transverse to the longitudinal dimension, and wherein the drive cable includes a pair of control extensions that extend from the pulley along the longitudinal dimension.
4 . The device of claim 2 wherein the arm is releasably coupled to the pulley.
5 . The device of claim 2 wherein the pulley has a diameter greater than about seven millimeters.
6 . The device of claim 5 wherein the pulley has a diameter of about ten millimeters.
7 . The device of claim 1 wherein the body has a passageway for receiving an endoscope.
8 . The device of claim 7 wherein the device has a maximum transverse perimeter of less than about 6.28 centimeters.
9 . The device of claim 7 wherein the passageway has a diameter of about eleven millimeters.
10 . The device of claim 9 wherein the device has a maximum transverse perimeter of less than about 6.28 centimeters.
11 . The device of claim 1 wherein the body has a longitudinal dimension and wherein the hinge has a pivot axis substantially transverse to the longitudinal dimension.
12 . A transoral gastroesophageal flap valve restoration device comprising:
a body having a longitudinal dimension;
an arm pivotably mounted to and extending from a single side of the body and arranged for reciprocating movement within a plane extending along the longitudinal dimension; and
a drive mechanism that imparts the reciprocating movement to the arm.
13 . The device of claim 12 wherein the drive mechanism includes a pulley coupled to the arm and a drive cable at least partially wrapped about the pulley.
14 . The device of claim 13 wherein the pulley has a center axis substantially transverse to the longitudinal dimension, and wherein the drive cable includes a pair of control extensions that extend from the pulley along the longitudinal dimension.
15 . The device of claim 13 wherein the arm is releasably coupled to the pulley.
16 . The device of claim 13 wherein the pulley has a diameter greater than about seven millimeters.
17 . The device of claim 16 wherein the pulley has a diameter of about ten millimeters.
18 . The device of claim 12 wherein the body has a passageway for receiving an endoscope.
19 . The device of claim 18 wherein the device has a maximum transverse perimeter of less than about 6.28 centimeters.
20 . The device of claim 18 wherein the passageway has a diameter of about eleven millimeters.
21 . The device of claim 20 wherein the device has a maximum transverse perimeter of less than about 6.28 centimeters.
22 . The device of claim 18 wherein the drive mechanism includes a pulley coupled to the arm and a drive cable at least partially wrapped about the pulley.
23 . The device of claim 22 wherein the pulley has a center axis substantially transverse to the longitudinal dimension.
24 . The device of claim 23 wherein the pulley has a diameter greater than about seven millimeters.
25 . The device of claim 24 wherein the pulley has a diameter of about ten millimeters.