Method of performing a treatment for gastroesophagheal reflux disease (GERD)
A method of performing a treatment for gastroesophagheal reflux disease (GERD) includes providing a distal end of a shaft of a medical instrument with a proximally facing end effector having a laterally offset clevis defining a shaft-clevis plane and opposing mutually rotatable jaws proximally directed and laterally displaced relative to a longitudinal axis of the shaft. The jaws hold parts of a two-part fastener, respectively, and are offset and separated from the shaft. Significantly, the jaws operate in a plane at an angle to the shaft-clevis plane. The shaft is inserted with the proximally facing end effector through the esophagus in a first direction. The shaft is retracted in a second direction substantially opposite the first. The end effector contacts a stomach wall at a location near the esophagus and the stomach wall is manipulated with the end effector.
1. A method of performing a treatment for gastroesophagheal reflux disease (GERD), comprising:
providing a distal end of a shaft of a medical instrument with a proximally facing end effector, the shaft having a shaft axis, the end effector having a clevis with a jaw portion offset from the shaft axis in an offset direction wherein a shaft-effector plane is formed between the offset portion and the axis of the shaft, the jaw portion directing two opposing jaws separate from the shaft in a proximal direction, each of the jaws directly connected to one part of a two-part fastener, the jaws operable to actuate in an actuation plane at a non-zero angle to the shaft-effector plane;
inserting the shaft with the proximally facing end effector and proximally facing jaws through the esophagus in a first direction;
retracting the shaft of the instrument in a second direction substantially opposite the first direction;
contacting the end effector against a stomach wall at a location substantially adjacent the esophagus; and
manipulating the stomach wall with the end effector.
2. A method according to claim 1 , wherein:
said first and second directions are substantially parallel to the esophagus.
3. A method according to claim 1 , wherein:
said manipulating includes plicating a portion of said stomach wall.
4. A method according to claim 3 , further comprising using a second instrument separate from the shaft in conjunction with the end effector to effect the plicating.
5. A method according to claim 3 , further comprising applying the two-part fastener about the plicated portion.
6. A method according to claim 3 , further comprising piercing the plicated portion.
7. A method according to claim 6 , wherein:
with respect to each jaw, one of the two jaws and a part of the two-part fastener includes tissue piercing means.
8. The method according to claim 1 , which further comprises carrying out the manipulating step by operating the jaws in the articulation plane at a non-zero angle to the shaft-effector plane.
9. A method of performing a treatment for gastroesophagheal reflux disease (GERD), comprising:
providing a distal end of a shaft of a medical instrument with a proximally facing end effector having:
a laterally offset portion, the laterally offset portion and an axis of the shaft connected by an imaginary shaft-effector plane; and
two proximally facing opposing jaws at the offset portion and separated from the shaft in an offset direction, the jaws operable to actuate in an actuation plane at a non-zero angle to the shaft-effector plane, each of the jaws being directly connected to one part of a two-part fastener;
inserting the shaft with the end effector through an esophagus in a first direction;
retracting the shaft of the instrument in a second direction substantially opposite the first direction;
contacting the end effector against a stomach wall at a location substantially adjacent the esophagus; and
manipulating the stomach wall with the end effector.
10. The method according to claim 9 , wherein the first and second directions are substantially parallel to a longitudinal extent of the esophagus.
11. The method according to claim 9 , which further comprises carrying out the manipulating step by plicating a portion of the stomach wall.
12. The method according to claim 11 , which further comprises effecting the plicating utilizing a second instrument separate from the shaft of the medical instrument in conjunction with the end effector.
13. The method according to claim 11 , which further comprises applying the two-part fastener about the plicated portion.
14. The method according to claim 11 , which further comprises piercing the plicated portion.
15. The method according to claim 14 , which further comprises providing means for piercing the plicated tissue on at least one of the two jaws.
16. The method according to claim 14 , which further comprises providing means for piercing the plicated tissue on at least one part of the two-part fastener.
17. The method according to claim 14 , which further comprises providing means for piercing the plicated tissue on at least one of:
at least one of the two jaws; and
at least one part of the two-part fastener.
18. The method according to claim 14 , which further comprises providing a tissue piercing device for piercing the plicated tissue on at least one of:
at least one of the two jaws; and
at least one part of the two-part fastener.
19. The method according to claim 9 , which further comprises carrying out the manipulating step by operating the jaws in a the articulation plane at a non-zero angle to the shaft-effector plane.