Endoscopic surgical operation method
Endoscopic surgical operation method includes: a step of lifting a living tissue including an diseased tissue located distally relative to an operation channel of an endoscope inserted through a natural orifice; a step of suturing a proximal region and a distal region of the living tissue positioned basal relative to the diseased tissue lifted by a suturing means section projecting distally from the operation channel of the endoscope after the lifting; and a step of resecting the living tissue between the sutured regions and the diseased tissue endoscopically after suturing the proximal region and the distal region of the living tissue surrounding the diseased tissue.
1. An endoscopic surgical operation method comprising:
providing an endoscope, the endoscope having on its distal end a device, the device having a first body having a curved first surface and a second body having a second surface opposing the first surface, the first surface and the second surface defining a space therebetween for introduction of tissue, the space extending from a bottom of the device towards a top of the device;
providing a lift instrument;
advancing the lift instrument along the endoscope and the first surface to dispose the lift instrument to be opposed to a living tissue in the vicinity of a diseased tissue, wherein the first surface deflects the lift instrument towards the living tissue during the advancing;
grasping the living tissue using the lift instrument;
lifting the living tissue grasped by the lift instrument and drawing the living tissue and the diseased tissue into the space;
narrowing the space while the living tissue is in the space thereby causing contact between a proximal region and a distal region of the living tissue located in the space over an entirety of the living tissue within the space;
suturing the proximal region and the distal region of the living tissue positioned basal relative to the diseased tissue using a suturing means after the narrowing and the causing contact, thereby forming sutured regions that surround the diseased tissue; and
resecting the living tissue between the sutured regions and the diseased tissue endoscopically after the suturing so as to surround the diseased tissue with the resecting.
2. The endoscopic surgical operation method according to claim 1 , wherein the lifting and the suturing are repeated to obtain the sutured regions in plural points.
3. The endoscopic surgical operation method according to claim 1 , wherein the resecting includes resecting the living tissue in full thickness.
4. The endoscopic surgical operation method according to claim 1 , wherein during the lifting, predetermined sites of the living tissue are grasped and lifted upward, and after that, the sites while being grasped and lifted are drawn proximally in an axial direction of the endoscope.
5. The endoscopic surgical operation method according to claim 1 , wherein during the lifting the distal region of the living tissue lifted is lifted while being compressed with a compressing section.
6. The endoscopic surgical operation method according to claim 1 , wherein, during the lifting, the distal region is drawn proximally or the proximal region is compressed distally so that the distal region of the lifted living tissue makes close contact with the proximal region of the lifted living tissue and overlaps with the proximal region.
7. The endoscopic surgical operation method according to claim 1 , further comprising providing hemostasis to a bleeding region of the living tissue after the resecting.
8. The endoscopic surgical operation method according to claim 1 , further comprising collecting the living tissue including the diseased tissue resected in the resecting.
9. The endoscopic surgical operation method according to claim 1 , wherein, during the lifting, the living tissue is grasped at plural points, and the plural points are lifted simultaneously.
10. The endoscopic surgical operation method according to claim 1 , further comprising providing markings prior to the lifting for clarifying a scope of the diseased tissue.
11. The endoscopic surgical operation method according to claim 1 , further comprising providing markings, prior to the lifting, for clarifying points being subject to be grasped on the living tissue around the diseased tissue and thereafter using the markings to define an area of the living tissue which is grasped and lifted.
12. The endoscopic surgical operation method according to claim 1 , wherein, during the lifting, a mucosa of the living tissue being subject to be grasped is incised, and an exposed muscle coat is grasped.
13. The endoscopic surgical operation method according to claim 1 , wherein the space is formed distally relative to the endoscope.