Medical procedure via natural orifice and puncture device

Abstract

A medical procedure performed via a natural orifice comprises: inserting a puncture device from an abdominal wall side into the vicinity of a target site in a hollow organ, and protruding the distal end thereof inside the hollow organ; introducing an observation device into the hollow organ via a natural orifice of a living body, and setting a target site at the hollow organ by checking the puncture device as an indicator; and treating the target site confirmed by the observation device by using an treatment device inserted via a natural orifice.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a drawing showing a diathermy knife inserted into an endoscope used in the embodiment;

FIG. 1B is an enlarged view showing the distal end of the endoscope and the diathermy knife;

FIG. 2 is a drawing showing a puncture device and a sheath;

FIG. 3 is a cross-sectional view taken along line A-A in FIG. 2;

FIG. 4 is a drawing showing both two balloons inflated in the puncture device;

FIG. 5 is a drawing for illustrating procedures in which the endoscope is inserted into a stomach to effect puncture by using the puncture device;

FIG. 6 is a drawing showing a case where the puncture device is inserted from the abdominal region into the stomach and a process by which a fragile portion of a sheath is cut;

FIG. 7 is a drawing showing a case where the sheath is removed to retain only the puncture device;

FIG. 8 is a drawing showing a case where a target site on the stomach wall is approached by using as a guide an indicator on the inflated second balloon;

FIG. 9 is a drawing showing a case where an opening is formed on the stomach and a target site inside the abdominal cavity is approached by using as a guide an indicator on the inflated first balloon;

FIG. 10 is a drawing showing another aspect of an indicator on a holding portion; and

FIG. 11 is a drawing showing another aspect of the second balloon.

Claims

1. A medical procedure performed via a natural orifice comprising: inserting a puncture device from an abdominal wall side into the vicinity of a target site in a hollow organ, and protruding the distal end thereof inside the hollow organ;introducing an observation device into the hollow organ via a natural orifice of a living body, and setting a target site at the hollow organ by checking the puncture device as an indicator; andtreating the target site confirmed by the observation device by using an treatment device inserted via a natural orifice.

2. The medical procedure performed via a natural orifice as set forth in claim 1, wherein the inserting the puncture device comprises: placing a balloon provided on the puncture device between the abdominal wall and the hollow organ; andinflating the balloon after inserting the puncture device.

3. The medical procedure performed via a natural orifice as set forth in claim 1, wherein the inserting the puncture device comprises: placing a first balloon provided at the puncture device between the abdominal wall and the hollow organ; andplacing a second balloon inside the hollow organ, the second balloon being attached to a site closer to the distal end side of the puncture device than a site to which the first balloon is attached.

4. The medical procedure performed via a natural orifice as set forth in claim 3, wherein the confirming a target site comprises using an indicator provided to the second balloon in order to confirm the direction inside the hollow organ.

5. The medical procedure performed via a natural orifice as set forth in claim 3, wherein the confirming a target site comprises inserting the observation device, provided at the distal end of an insertion portion which is flexible and inserted via the natural orifice into the hollow organ, and the treatment inside the hollow organ comprises inserting the treatment device into the hollow organ via a duct provided to the insertion portion.

6. The medical procedure performed via a natural orifice as set forth in claim 1, comprising supplying air into the hollow organ for inflation prior to the protrusion of the distal end of the puncture device inside a hollow organ.

7. The medical procedure performed via a natural orifice as set forth in claim 6, wherein the treating the target site comprises forming an opening on the wall of the hollow organ.

8. The medical procedure performed via a natural orifice as set forth in claim 7, further comprising introducing a device which is introduced via the opening into the abdominal cavity to perform a second treatment inside the abdominal cavity.

9. A puncture device comprising: a needle configured to be inserted from an abdominal wall into a hollow organ;a first balloon attached to the needle and inflatable by supply of a fluid;a second balloon attached to a site closer to the distal end side of the needle than a site to which the first balloon is attached and inflatable by supply of the fluid; anda duct which supplies the fluid respectively to the first balloon and the second balloon.

10. The puncture device as set forth in claim 9, wherein the second balloon comprises an indicator configured to indicate the direction inside the hollow organ so as to be observable on inflation.

11. The puncture device as set forth in claim 9, comprising a first indicator provided to the second balloon and observable for the direction inside the hollow organ on inflation; anda second indicator provided at the proximal end of the needle which stays outside a living body and indicates a direction with respect to the direction indicated by the indicator of the second balloon.

12. The puncture device as set forth in claim 9, wherein the duct is capable of inflating independently the first balloon and the second balloon.

13. The puncture device as set forth in claim 9, comprising a sheath covering the respective outer peripheries of the first balloon and the second balloon when the first balloon and the second balloon are deflated.

14. The puncture device as set forth in claim 13, wherein the sheath comprises a fragile portion which makes the sheath removable by partially breaking the sheath after insertion into the living body.