JP3851849B2 - Tissue suture ligator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tissue suture ligator for suturing the cut surfaces when excising a tubular organ such as the large intestine and the small intestine.
[0002]
[Prior art]
A tissue suture ligator is known in which lesions such as the large intestine, small intestine, and duodenum are excised, and normal parts of each other are sutured into a tubular shape. The tissue suturing ligator facilitates the suturing of organs by using a plurality of staples and suturing rings, and greatly shortens the operation time.
[0003]
This tissue suture ligator has a structure in which staples and suture rings are attached to the distal end portion of an insertion portion made of a shaft that can be inserted into a tubular tissue such as the large intestine, and the insertion portion is rigid and linear or curved. It has a configuration.
[0004]
However, if the insertion portion is rigid, it is difficult to insert into a curved tubular tissue such as the large intestine and the small intestine, and even if it can be inserted, it cannot be inserted deep. Therefore, when a tubular organ such as the large intestine or the small intestine is sutured, a troublesome operation is required in which a hole is formed in the tubular organ in the vicinity of the sutured portion and the insertion portion is inserted through the hole.
[0005]
Therefore, for example, as shown in JP-A-63-30584, there is provided means for connecting the operation portion and the stitching portion with a flexible shaft portion and fixing the shaft portion to the operation portion in a curved state. A tissue suture ligator has been developed in which the suture and excision are performed with the fixing force of the shaft portion.
[0006]
Further, as shown in Japanese Patent Application Laid-Open No. 59-501777, the operation portion and the stitching portion are connected by a flexible shaft portion, and the force for deforming the stitching staple provided in the stitching portion is A tissue suture ligator has been developed that transmits a force for excising tissue from an operation unit by fluid pressure.
[0007]
[Problems to be solved by the invention]
By the way, when a portion close to the anus such as the rectum or the sigmoid colon is sutured, it is possible to insert a tissue suture ligator from the anus. However, it is difficult to insert this blindly to the suture site. In particular, it is impossible to perform a large intestine resection without laparotomy using a laparoscope.
[0008]
Further, in Japanese Patent Laid-Open No. 63-30584, when a suture part is inserted inside a cavity of an organ to be excised, the shaft part is bent due to the resistance of the inner wall of the organ. For this reason, even if it tries to pass the bending part of an organ, a shaft part does not bend according to the bending of an organ, and insertion is difficult.
[0009]
In Japanese Patent Laid-Open No. 59-501777, the shaft portion bends due to the resistance of the air supply inner wall until the stitched portion reaches the excision site. However, a certain degree of rigidity is required for the shaft portion in order to transmit the force for suturing to the suture portion and the force for excising the tissue, and due to this rigidity, it is difficult to form a shape that is familiar with the inner wall of the organ.
[0010]
Therefore, in order to insert the suture part into the inside of the organ, it is necessary to make an incision in the side wall of the organ near the suture site and to create an opening enough to receive the tissue suture ligator. This opening must be sewn after the treatment is completed, which is not preferable because it reduces the burden on the patient.
[0011]
Furthermore, as shown in FIG. 61, when an intestinal tract a such as the large intestine is sutured with staples b, it is difficult to confirm whether or not the stitched portion c is inside the intestinal tract a and is securely sutured only when viewed from the outside. There is a problem.
[0012]
  The present invention has been made paying attention to the above circumstances, and its purpose is, YoAn object of the present invention is to provide a tissue suture ligator that can be sutured more easily.
  Another object of the present invention is to provide a tissue suture ligator which can be sutured more easily and can be easily confirmed.
[0013]
[Means for Solving the Problems]
  According to the first aspect of the present invention, there is provided an annular staple holding means that is provided at a distal end portion of a long insertion portion that is inserted into a lumen, has a plurality of staples, and discharges the staples, and the staple holding means. A suction member provided on the inner side and having an annular suction groove formed on the outer peripheral surface thereof is provided so as to be movable toward and away from the staple holding means, and the staple is molded and fixed to the living tissue. An anvilThe suction member has an observation window and an illumination window on a surface facing and separated from the anvil, and the anvil has an opening in a portion on the axis of the observation window;The living body tissue is sucked into the suction groove of the suction member by opening the staple holding means and the anvil, and the staple is formed by closing the staple holding means and the anvil to form the staple. The tissue suture ligator is characterized by being fixed to a tissue.
[0014]
  The invention according to claim 2 is the tissue suturing ligator according to claim 1, wherein the suction member is provided so as to be able to advance and retreat in the axial direction of the insertion portion..
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, each structural example of this invention is demonstrated based on drawing. 1 to 4 show a first configuration example of a tissue suture ligator, and FIG. 2 shows an overall configuration of the tissue suture ligator. Reference numeral 1 denotes an operation unit, and the operation unit 1 is provided with a flexible tubular insertion unit 2. A suture member 4 is provided at the distal end portion of the insertion portion 2 via the bending portion 3. The suturing member 4 includes a staple discharge portion 5 as a discharge means and an anvil portion 6 as a forming means.
[0016]
The operation section 1 is provided with an opening / closing operation section 7 comprising a tightening adjustment ring for opening / closing the staple discharge section 5 and the anvil section 6 of the suturing member 4 and a suturing operation section 8 for operating the suturing member 4. Further, the operation unit 1 is provided with a bending operation lever 9 for performing a bending operation of the bending unit 3, an eyepiece unit 10, and an air / water supply button 11, and a universal cord 12 is connected to the universal cord 12. A connector 13 connected to a light source device (not shown) is provided.
[0017]
Next, the structure of the distal end portion of the insertion portion 2 will be described as shown in FIG. That is, a flexible anvil shaft tube 20 is inserted in the axial center portion of the insertion portion 2 so as to be rotatable and movable in the axial direction, and the base end portion is connected to the opening / closing operation portion 7. A plurality of bending pieces 21 constituting the bending portion 3 are rotatably connected to the distal end portion of the anvil shaft tube 20. The bending piece 21 is connected to the bending operation lever 9 through a bending operation wire 22.
[0018]
A rigid anvil shaft 23 is connected to the tip of the bending piece 21. The anvil shaft 23 passes through the staple discharge portion 5, and the anvil portion 6 is screwed and fixed to the distal end portion of the anvil shaft 23.
[0019]
The outer periphery of the anvil shaft tube 20 and the bending piece 21 is covered with a spiral tube 24, and the outer periphery of the spiral tube 24 is covered with an outer skin 25. Further, a plurality of hydraulic tubes 26 are arranged between the outer periphery of the anvil shaft tube 20 and the bending piece 21 and the inner periphery of the spiral tube 24, and the proximal end side of the hydraulic cylinder is operated by the suturing operation unit 8. (Not shown).
[0020]
The housing 30 of the staple discharge unit 5 is fixed to the distal end portion of the insertion unit 2 formed in this way. The housing 30 is a cylindrical body having a front end opening, and an insertion hole 31 through which the anvil shaft 23 is inserted in the axial direction is provided in the rear end closing portion.
[0021]
An annular cylinder 32 is provided inside the housing 30 so as to surround the anvil shaft 23. The cylinder 32 communicates with the hydraulic tube 26. Inside the cylinder 32, a staple pusher 33 having substantially the same shape as that of the housing 30 is housed so as to be movable forward and backward.
[0022]
An annular staple holder 34 is provided on the front end surface of the staple pusher 33. The staple holder 34 is provided with a plurality of staples 35 as tissue suture ligating members arranged in two rows in the radial direction. These staples 35 are formed by bending a thin wire rod into a U-shape or a U-shape, and both leg portions 35a project toward the front end side while supporting the head portion.
[0023]
A staple discharge member 36 that faces the staple holder 34 is provided on the inner periphery of the front end opening of the housing 30. The staple discharge member 36 is provided with a plurality of slits 37 for discharging the staple 35.
[0024]
A cutter 38 having a cylindrical shape and having a blade portion at the front end thereof is fixed inside the staple pusher 33 so that the staple pusher 33 moves forward and backward together.
[0025]
On the other hand, the anvil part 6 facing the staple releasing part 5 is formed with an arc convex surface at the front end so that it can be easily inserted into the organ of the anvil body 40. A through hole 41 penetrating in the front-rear direction is formed in the central portion of the anvil body 40, and an optical system holding cylinder 42 is screwed into the through hole 41, and the optical system holding cylinder 42 is attached to the anvil shaft 23. It is fixed.
[0026]
An observation window 44 having an objective lens 43 and an illumination window 46 having an illumination lens 45 are provided at the front end of the optical system holding cylinder 42. The objective lens 43 is optically connected to the image guide fiber 47, and the illumination lens 45 is optically connected to the light guide fiber 48 to constitute observation means.
[0027]
The image guide fiber 47 and the light guide fiber 48 are guided to the operation unit 1 through the anvil shaft 23, the bending piece 21, and the anvil shaft tube 20, the image guide fiber 47 is connected to the eyepiece unit 10, and the light guide fiber 48 is universal. Each is connected to a cord 12.
[0028]
An annular anvil member 49 is provided on the back surface of the anvil body 40, and a staple forming groove 50 facing the slit 37 of the staple discharge member 36 is provided on the anvil member 49.
[0029]
Further, an air / water supply nozzle 51 is provided at the front end of the anvil body 40, and this is connected to the air / water supply button 11 via an air / water supply tube (not shown) inserted in the insertion portion 2. .
[0030]
Next, the operation of the tissue suture ligator configured as described above will be described. Since the suture member 4 is provided at the distal end portion of the insertion portion 2 via the bending portion 3, by operating the bending operation lever 9, the bending operation wire 22 is pushed and pulled, and the bending portion 3 is bent. The suture member 4 can be oriented in any direction.
[0031]
Further, since the anvil portion 6 of the suture member 4 is provided with an observation window 44 and an illumination window 46, when inserted into an organ in a body cavity, the inside of the organ is inserted while observing with the eyepiece 10. In addition, since the air / water supply nozzle 51 is provided, the physiological saline can be supplied to the affected tissue or supplied as needed by operating the air / water supply button 11.
[0032]
Further, since the anvil portion 6 is supported by the anvil shaft 23 that is movable forward and backward in the axial direction with respect to the insertion portion 2, the anvil portion 6 is advanced and retracted by the opening / closing operation portion 7, thereby contacting the staple discharging portion 5. The distance can be adjusted according to the thickness of the tissue to be sutured.
[0033]
When the suturing operation unit 8 is operated, hydraulic pressure is applied to the cylinder 32 via the hydraulic tube 26, and the staple pusher 33 moves forward. Therefore, the leg portions 35a of the plurality of staples 35 supported by the staple holder 34 protrude from the slits 37 and are inserted into the tissue.
[0034]
When the leg portion 35a of the staple 35 penetrates the tissue, the leg portion 35a is bent inward by the staple forming groove 50 of the anvil portion 6 and the tissue is sewn in an annular shape. At the same time, since the cutter 38 advances together with the staple pusher 33, the inside of the stitched portion is cut into an annular shape.
[0035]
As described above, after the tissue is clamped by the staple discharging portion 5 and the anvil portion 6, the tissue can be sutured in an annular shape by operating the suturing operation portion 8, and can be cut into the annular shape at the same time. The opening edge of the disk-like opening is stitched by the staple 35.
[0036]
FIGS. 3A to 3F show a state where a lesioned part 53 generated in the large intestine 52 is excised.
[0037]
As shown in (a), the suture member 4 provided at the distal end portion of the insertion portion 2 of the tissue suture ligator is inserted from the oral cavity or anus, and the inside of the large intestine 52 is illuminated by illumination light from the illumination window 46, While observing the inside of the large intestine 52 with the eyepiece 10, the bending operation lever 9 is operated to bend the bending portion 3 and push it forward.
[0038]
As shown in (b), when the suture member 4 reaches the lesioned part 53 generated in the large intestine 52, a part of the large intestine 52 is exposed to the outside by laparoscopic or laparoscopic insertion through the abdominal wall and inserted into the body cavity. Withdrawn, the large intestine 52 around the lesioned part 53 is excised. Then, the resected end of the normal large intestine 52 is sutured with a suture 54.
[0039]
(C) After further pushing the suturing member 4, the opening / closing operation unit 7 is operated to advance the anvil shaft 23, and the anvil part 6 protrudes from the open front end 52a of the large intestine 52, and from the open rear end 52b of the large intestine. Insert further inside.
[0040]
(D) Pull the suture 54 to bind the opening front end 52 a and the opening rear end 52 b of the large intestine 52 to the anvil shaft 23.
[0041]
(E) Operating the opening / closing operation unit 11 to retract the anvil shaft 23, holding the opening front end 52 a and the opening rear end 52 b of the large intestine 52 between the staple discharging unit 5 and the anvil unit 6, and operating the suturing operation unit 8. Then, the staple 35 is discharged from the staple discharge portion 5, the leg portion 35 a of the staple 35 is bent by the staple forming groove 50 of the anvil portion 6, and the opening front end 52 a and the opening rear end 52 b of the large intestine 52 are sewn together, and the cutter 38. Thus, the inside of the stitching portion 55 is cut into an annular shape.
[0042]
(F) After completion of the suturing / cutting, the suturing member 4 is retracted, and the tissue suture ligator is removed from the large intestine 52 while observing the suturing / cutting state with the eyepiece 10, thereby causing a lesion in the large intestine 52. 53 excision operations are completed.
[0043]
By providing the observation means on the suturing member 4 in this way, it is easy to guide the suturing member 4 to the target site, and the suturing state and the cutting state can be observed and confirmed. Moreover, since the insertion part 2 has flexibility, even if it is bent organs, such as a large intestine, insertion is easy. Furthermore, since it can be inserted from the oral cavity or anus, there is no need to open an incision for inserting a tissue suture ligator in the organ, and there is an effect that the burden on the patient is small and the sutured state and the cut state can be observed and confirmed.
[0044]
The tissue suture ligator according to the present invention is not limited to the suture after resection of the large intestine 52, and as shown in FIGS. 4 (a) and 4 (b), the stomach wall 56 and the duodenum wall 57 are simultaneously sutured. The present invention can also be used for a surgery in which an opening 58 is provided on the inside and a surgery in which the duodenal wall 57 is sutured and at the same time an opening 58 is provided inside the suture.
[0045]
5 and 6 show a second configuration example of the tissue suture ligator, and the same components as those in the first configuration example are denoted by the same reference numerals, and the description thereof is omitted. In this configuration example, an optical system holding cylinder 60 is provided around the anvil shaft 23, and an observation optical system 61 and an illumination optical system 62 are provided on the optical system holding cylinder 60.
[0046]
According to this configuration example, the stitched portion and the excised portion of the tissue can be directly observed by the observation optical system 61, and there is an effect that the sutured and excised state can be confirmed easily and accurately.
[0047]
7 and 8 show a third configuration example, the same components as those in the first configuration example are denoted by the same reference numerals, and description thereof is omitted. In this configuration example, the staple holding member 63 is detachably provided at the distal end portion of the anvil shaft 23, and the anvil portion 6 that fits the anvil shaft 23 is provided at the distal end portion of the insertion portion 2.
[0048]
The staple holding member 63 has an arcuate convex front end so that it can be easily inserted into the organ. An annular staple holder 64 having elasticity such as rubber is provided on the back surface of the staple holding member 63, and a plurality of staples 35 are arranged in an annular shape in the staple holder 64. An anvil body 65 made of a cylindrical body having a front end opening is provided in the anvil portion 6 so as to be movable in the front-rear direction.
[0049]
Accordingly, the anvil body 65 and the cutter 38 are moved forward by the hydraulic pressure applied to the cylinder 32, and the anvil body 65 presses the staple holder 64 to compress the staple holder 64. When the staple holder 64 is compressed, the leg portion 35a of the staple 35 is inserted into the tissue, the leg portion 35a is formed by the staple forming groove 66 of the anvil body 65, and the inside of the suture portion of the tissue by the cutter 38. Is cut into an annular shape.
[0050]
With such a configuration, once the suturing is performed, the staple holding member 63 is detached from the anvil shaft 23, and an unused staple holding member 63 is attached to the anvil shaft 23 when another portion is sewn and cut. Reusable and economical.
[0051]
9 to 11 show a fourth configuration example, the same components as those in the first configuration example are denoted by the same reference numerals, and description thereof is omitted. This configuration example is an example in which an endoscope 67 with a forceps channel and a tissue suture ligator 68 are used in combination.
[0052]
A ring-shaped pusher ring 69 is provided behind the staple pusher 33, and a distal end portion of a pusher wire 71 inserted into the hydraulic tube 26 is connected to the pusher ring 69. The proximal end portion of the pusher wire 71 is connected to the suture lever 73 of the suture instrument operation portion 72.
[0053]
The anvil portion 6 constituting the stitching member 4 is provided on the anvil shaft 74, and this anvil shaft 74 is fixed to the tightening allowance adjusting ring 75 of the suturing portion operating portion 72. The anvil part 6 comes in contact with and separates from the staple discharge part 5.
[0054]
An insertion tube 76 having an outer diameter that can be inserted into the forceps channel 67a of the endoscope 67 is fixed to the housing 30 of the staple discharge unit 5, and an insertion portion 77 formed of the insertion tube 76 and members inside thereof is flexible. And is detachably connected to the suture instrument operation unit 72.
[0055]
Accordingly, the suture instrument operating portion 72 and the insertion portion 77 are removed, the insertion portion 77 is inserted from the forceps channel 67a at the distal end portion of the endoscope 67, and is led out from the channel base 67b. By connecting 72, the endoscope 67 and the suturing device 68 can be combined. Note that 61 is an observation optical system, and 62 is an illumination optical system.
[0056]
Then, the suturing device 68 is inserted into the organ together with the endoscope 67, and the pusher wire 69 is advanced by the pusher wire 71 by operating the suturing lever 73 while observing the inside of the organ with the endoscope 67, and the staple pusher 33 and The tissue can be sutured and excised by transmitting to the cutter 38.
[0057]
Therefore, the endoscope 67 can be inserted to a deep part in the body cavity, and it is easy to reach the target site, and secure suture is possible while observing the target site.
[0058]
FIGS. 12 to 14 show a fifth example of the structure and a straight suture tissue suture ligator. The first insertion portion 80 and the second insertion portion 81 having flexibility are provided, and a cartridge 83 is provided at the distal end portion of the first insertion portion 80 via a curved portion 80a. The part 81 is provided with an anvil 84 via a curved part 81a.
[0059]
The cartridge 83 and the anvil 84 constitute a suturing member 82. The cartridge 83 and the anvil 84 have substantially the same shape, and have flat surfaces 83a and 84a so that they are in surface contact with each other when they are overlapped.
[0060]
A plurality of slits 85 are arranged in a row along the longitudinal direction of the flat surface 83a of the cartridge 83, and staples 86 are slidably accommodated in these slits 85 and protruded by a staple pusher (not shown). It has come to be.
[0061]
A plurality of staple forming grooves 87 are arranged on the flat surface 84a of the anvil 84 so as to face the slits 85, and the leg portions of the staples 86 protruding from the slits 85 are bent inward.
[0062]
Further, an illumination window 88 and an observation window 89 are arranged side by side on the flat surfaces 83 a and 84 a located at the tip portions of the cartridge 83 and the anvil 84. The illumination window 88 and the observation window 89 are optically connected to a light guide fiber and an image guide fiber (both not shown), and are connected to an operation unit (not shown) via the first and second insertion portions 80 and 81. It is connected. Therefore, the suture member 82 has an observation function that allows the inside of the body cavity to be viewed from the side.
[0063]
Further, forceps channels 90 and 91 are provided inside the cartridge 83 and the anvil 84, respectively, and the forceps channels 90 and 91 communicate with the operation unit via the first and second insertion portions 80 and 81. . A distal forceps port 92 that communicates with the forceps channel 90 and opens to the flat surface 83a is provided on the front end side of the cartridge 83, and a rear forceps port that communicates with the forceps channel 91 and opens to the flat surface 83a on the rear end side. 93 is provided.
[0064]
Further, a distal forceps port 94 that communicates with the forceps channel 90 ′ and opens to the flat surface 84 a is provided on the distal end side of the anvil 84, and communicates with the forceps channel 91 ′ on the rear end side and opens to the flat surface 84 a. A rear end forceps port 95 is provided.
[0065]
Further, forceps raising bases 92a, 93a, 94a, and 95a are provided at the front forceps ports 92 and 94 and the rear forceps ports 93 and 95 of the cartridge 83 and the anvil 84, respectively.
[0066]
Next, the action of the straight suture tissue suture ligator constructed as described above will be described. FIG. 13 shows a state in which the cartridge 83 and the anvil 84 provided at the distal ends of the first and second insertion portions 80 and 81 are orally inserted into the body cavity and reach the lumen 96 such as the duodenum.
[0067]
After the cartridge 83 and the anvil 84 reach the target portion of the lumen 96, the operation portion is operated to bend the bending portions 80a and 81a so that the cartridge 83 and the anvil 84 are overlapped with the flat surfaces 83a and 84 facing each other. The tube wall 97 is clamped.
[0068]
In this state, the guide wires 98 and 99 are inserted into the forceps channels 90 and 91 of the cartridge 83 from the operation portion via the insertion portion 80, and the guide wires 98 and 99 are led out from the front forceps port 92 and the rear end forceps port 93. . Further, the guide wires 98 and 99 are introduced into the distal forceps port 94 and the rear forceps port 95 of the anvil 84 by the forceps raising bases 92a and 93a, and the distal ends of the guide wires 98 and 99 are inserted into the forceps channel 90 ′ of the anvil 84. The guide wires 98 and 99 are pulled out by gripping with gripping forceps (not shown) introduced into the first insertion portion 81, and are fixed to the operation portion provided at the proximal end portion of the second insertion portion 81. As a result, the cartridge 83 and the anvil 84 are pulled together.
[0069]
In this state, when the staple 86 of the cartridge 83 is protruded by the staple pusher, the leg portion of the staple 86 is inserted into the tube wall 97, penetrates the tube wall 97, and the leg portion of the staple 86 is folded by the staple forming groove 87. The tube wall 97 is bent and stitched by a plurality of staples 86.
[0070]
After the suturing is completed, the guide wires 98 and 99 are loosened, whereby the cartridge 83 and the anvil 84 are separated from each other. Therefore, the observation window 89 is separated from the tube wall 97, and the sutured state can be confirmed. In addition, the tube wall 97 between stitching | suture parts can be excised by providing an excision means in the cartridge 83 or the anvil 84. The guide wires 98 and 99 may be fixed by using a die that is pressed and fixed by silicon used when injecting a contrast medium into the drainage tube.
[0071]
FIG. 14 also shows a state where the cartridge 83 and the anvil 84 provided at the distal ends of the first and second insertion portions 80 and 81 are orally inserted into the body cavity and reach the lumen 96 such as the duodenum. After the cartridge 83 and the anvil 84 reach the target site in the lumen 96, the operation portion is operated to bend the curved portions 80a and 81a so that the cartridge 83 and the anvil 84 are staggered. The cartridge 83 is in a state in which the flat surface 83a, 84 is opposed to each other and the tube wall 97 is sandwiched between the cartridge 83 and the cartridge 83, and the rear end of the cartridge 83 is opposed to the tip of the anvil 84). The means for joining the anvil 84 and the means for suturing the tube wall 97 are as described above, and a description thereof will be omitted.
[0072]
By providing the observation means on the cartridge 83 and the anvil 84 in this way, there is an effect that the suture state can be observed and confirmed immediately after the suture. In addition, since the cartridge 83 and the anvil 84 are separate, the insertion and positioning to the target site can be easily performed, and the approach is easy. Furthermore, by inserting the cartridge 83 and the anvil 84 into the body cavity orally, there is no need to open a hole for inserting the suture device into the organ, and the burden on the patient can be reduced.
[0073]
15 to 17 show a direct-view suture endoscope according to a sixth configuration example. A housing 101 is provided at a distal end portion of the insertion portion 100 having flexibility via a curved portion 100a, and an observation window 102 and an illumination window 103 are provided on the distal end surface of the housing 101.
[0074]
An operation portion (not shown) is provided at the base end portion of the insertion portion 100, and the bending portion 100a can be bent by a bending operation lever (not shown). An arc-shaped staple holder 104 is provided on the front end surface of the housing 101 over about one third of the circumference, and a plurality of staples 105 are concentrically arranged in the staple holder 104. An arc-shaped cutter 106 is provided on the inside of the blade so as to protrude and retract.
[0075]
An anvil shaft 107 that protrudes forward and backward is provided at the center of the housing 101, and an arcuate anvil 108 that faces the staple holder 104 is provided at the tip. The anvil 108 is provided with a staple forming groove 109 facing the staple 105.
[0076]
The anvil shaft 107 can be advanced and retracted by a tightening adjustment ring 7 provided in the operation unit 1 as in the first configuration example, and the staple 105 is also operated by the suturing operation unit 8 provided in the operation unit 1. The anvil 108 and the anvil 108 hold the tissue, and the staple 105 is protruded to be sutured, and the cutter 106 can cut the inside of the sutured portion.
[0077]
Next, the operation of the direct-viewing suture endoscope configured as described above will be described. As shown in FIGS. 16 and 17, the duodenum 111 is sutured to the stomach 110 by laparoscopic or open surgery. Reference numeral 112 denotes a stitched portion. Next, an endoscope (not shown) is inserted orally, a treatment tool is inserted into a forceps channel provided in the endoscope, and incision holes 115 and 116 are opened in the stomach wall 113 and the duodenum wall 114, and the stomach is opened. 110 communicates with the duodenum 111.
[0078]
Next, the endoscope is removed, and instead, the insertion portion 100 of the suture endoscope is orally inserted, the anvil 108 is inserted into the duodenum 111 through the incision holes 115 and 116, and the anvil 108 is moved to the site to be sutured. Let The space between the anvil 108 and the staple holder 104 is narrowed by the interference adjusting ring 7, and the stomach wall 113 and the duodenum wall 114 are sandwiched between the anvil 108 and the staple holder 104.
[0079]
In this state, when the suturing operation portion 8 is operated to cause the staple 105 to protrude from the staple holder 104, the leg portion of the staple 105 is inserted into the stomach wall 113 and the duodenum wall 114, and the leg portion of the staple 105 becomes the staple forming groove 109. The stomach wall 113 and the duodenum wall 114 are sutured by a plurality of staples 105. At the same time as the suturing, the cutter 106 protrudes and the portions of the stomach wall 113 and the duodenum wall 114 projecting inward from the stitched portions are excised. By repeating this operation a plurality of times, the entire peripheries of the incision holes 115 and 116 can be stitched.
[0080]
FIG. 18 shows a modification of the seventh configuration example, in which a linear staple holder 117 in which staples 105 are linearly arranged on the front end surface of the housing 101 is provided, and an anvil 118 opposite to the staple holder 117 is also linearly formed. Since the operation is the same as described above, the description thereof is omitted.
[0081]
By configuring in this way, the anvils 108 and 118 are small in size, and can be used even with a small incision hole, and can be sutured and excised while observing even if the suture portion has a large diameter.
[0082]
19 to 21 show a seventh configuration example in which the suture endoscope and the anvil portion are configured separately. A housing 121 is provided at the distal end portion of the insertion portion 120 having flexibility via a bending portion 120a. Inside the housing 121, a guide portion 121a that can protrude and retract from the front end surface of the housing 121 is provided. An observation window 122 and an illumination window 123 are provided on the distal end surface of the guide portion 121. An annular staple holder 124 is provided on the outer peripheral edge of the front end surface of the housing 121. In the staple holder 124, a plurality of staples 125 are concentrically arranged in two rows.
[0083]
An operation portion (not shown) is provided at the proximal end portion of the insertion portion 120, the bending portion 120a can be bent by a bending operation lever (not shown), and the guide portion 121a is a tightening adjustment ring (not shown) provided in the operation portion. ).
[0084]
A ring-shaped protrusion 126 extending along the circumferential direction is provided on the outer peripheral surface of the guide part 121a, and a bar-shaped protrusion 127 extending along the axial direction of the guide part 121a is provided on a part of the ring-shaped protrusion 126.
[0085]
On the other hand, reference numeral 128 denotes an anvil forceps, and the anvil forceps 128 is formed by a semi-annular first anvil portion 128a and a semi-annular second anvil portion 128b, which can be freely opened and closed. Is provided. The proximal end portion of the insertion portion 129 is rotatably connected to an opening / closing operation handle 130 that opens and closes the first anvil portion 128a and the second anvil portion 128b. The opening / closing operation handle 130 is provided with a rotating ring 131, and the insertion portion 129 is rotated by rotating the rotating ring 131.
[0086]
Staple forming grooves 132 facing the staples 125 of the staple holder 124 are provided on the side surfaces of the first anvil part 128a and the second anvil part 12b. Further, the inner periphery of the first anvil part 128a and the second anvil part 128b is engaged with the ring-shaped protrusion 126 and the rod-shaped protrusion 127 of the guide part 121a when closed, and the staple 125 and the staple forming groove 132 are formed. Are provided with a ring-shaped groove 133 and a rod-shaped groove 134.
[0087]
Next, the use state of the suture endoscope and the anvil part will be described with reference to FIG. When part of the tube wall 135 such as the large intestine is excised and the ends 135a and 135b are sutured together, a suture endoscope is inserted into the large intestine from the anus, while the anvil forceps 128 is inserted into the abdominal cavity by laparoscopic or open surgery. Put in.
[0088]
When the guide part 121a is protruded after the housing of the suture endoscope is inserted to the suture part, the end part 135a of the tube wall 135 covers the front end side of the staple holder 124 and is fitted on the guide part 121a. When the guide part 121a is protruded, the other end part 135b is grasped with grasping forceps by laparoscopic or laparoscopic surgery and moved to the front part of the staple holder 124, so that the guide part 121a enters the end part 135b. At the same time, the end portion 135a can be easily inserted, and the end portions 135a and 135b of the other tube wall 135 overlap.
[0089]
Next, when the first anvil part 128a and the second anvil part 12b of the anvil forceps 128 are opened and the guide part 121a is gripped through the end parts 135a and 135b of the tube wall 135, the ring-shaped protrusion 126 of the guide part 121a. Then, the bar-shaped protrusion 127, the ring-shaped groove 133, and the bar-shaped groove 134 are engaged, and the staple 125 and the staple forming groove 132 are positioned. When the staple 125 is protruded from the staple holder 124 in this state, the leg portion of the staple 125 is obtained. Is inserted into the end portions 135a and 135b of the tube wall 135, and the leg portion of the staple 125 is bent by the staple forming groove 132 and stitched.
[0090]
Therefore, when the large intestine is partially excised and the ends are sutured together, the conventional purse string suture is not required, the anvil forceps 128 can be easily inserted into the body cavity, and the operation time can be shortened. Further, immediately after the suturing, the suturing state can be confirmed by the observation means.
[0091]
22 to 24 show the parent-child suture endoscope in the eighth configuration example. In the parent suture endoscope 136, a housing 138 is provided at a distal end portion of a flexible insertion portion 137 via a bending portion 137a. An observation window 122 and an illumination window 123 are provided on the distal end surface of the housing 138, and an anvil receiving hole 140 is provided in the treatment instrument channel 139 and the central portion.
[0092]
An annular staple holder 124 is provided on the outer peripheral edge of the front end surface of the housing 138. A plurality of staples 125 are concentrically arranged in two rows on the staple holder 124, and an annular cutter 137 a is provided inside the row of staples 125 so as to protrude and retract.
[0093]
Reference numeral 141 denotes a child suture endoscope having a flexible thin insertion portion 142 that is inserted into the treatment instrument channel 139 of the parent suture endoscope 136. A distal end configuration portion 143 is provided at the distal end portion of the insertion portion 142 via a bending portion 142 a, and an observation window 144 and an illumination window 145 are provided on the distal end surface of the distal end configuration portion 143.
[0094]
An anvil 146 is detachably provided on the outer periphery of the tip constituting portion 143. An anvil shaft 147 that can be inserted into the anvil receiving hole 140 of the parent suture endoscope 136 protrudes from the center of the anvil 146. The anvil 146 is provided with a staple forming groove 148 facing the staple 125.
[0095]
Next, the operation of the parent-child suture endoscope configured as described above will be described. As shown in FIGS. 23 and 24, the parent suture endoscope 136 is inserted into the stomach 110 orally. The child suture endoscope 141 led out from the treatment instrument channel 136 is inserted from the stomach 110 into the duodenum 111, and the anvil shaft 147 projecting from the distal end configuration portion 143 is inserted into the lesioned portion 149, and the distal end configuration portion 143 is inserted. The anvil 146 is separated from the anvil 146, and the anvil 146 is left as it is.
[0096]
The housing 138 of the parent suture endoscope 136 inserted to the inside of the stomach 110 is brought close to the anvil shaft 147 inserted into the lesioned portion 149, the grasping forceps 150 protrudes from the anvil receiving hole 137, and the anvil shaft 147 is grasped. Pull into the receiving hole 137.
[0097]
Then, the stomach wall 113 and the duodenum wall 114 are sandwiched between the housing 138 and the anvil 146, the staple 125 is protruded by the same means as described above, and the stomach wall 113 and the duodenum wall 114 are stitched by bending with the staple forming groove 148. At the same time, the inside of the stitched portion of the stomach wall 113 and the duodenum wall 114 is excised with the cutter 137a.
[0098]
Thus, by observing with the parent-child suture endoscope, there is an effect that the suture state can be observed and confirmed immediately after the suture. Moreover, by inserting into the body cavity orally, there is no need to open a hole for inserting the tissue suture ligator into the organ, and the burden on the patient can be reduced.
[0099]
25 to 27 show a ninth configuration example. This is basically the case where the organ is sutured and excised using the first and second suture endoscopes 151 and 152 having the same structure, and the first and second suture endoscopes 151 and 152 are the above-mentioned parents. Since it is the same as that of the suture endoscope 136, the same components are denoted by the same reference numerals, description thereof will be omitted, and different portions will be described.
[0100]
A staple forming groove 148 is provided at the outer peripheral edge of the distal end surface of the housing 138 of the first suture endoscope 151, and an anvil shaft 153 is provided at the center. The anvil shaft 153 has a quadrangular section and a quadrangular pyramid tip.
[0101]
A staple holder 124 is provided on the outer peripheral edge of the distal end surface of the housing 138 of the second suture endoscope 152, and a square anvil receiving hole 154 into which the anvil shaft 153 is inserted is provided in the center. A grasping forceps 150 is inserted into the anvil receiving hole 154.
[0102]
Therefore, when the anvil shaft 153 having a square cross section and a quadrangular pyramid tip is inserted into the square anvil receiving hole 154, the staple 125 and the staple forming groove 148 are positioned, and is similar to the above-described parent suture endoscope 131. Organs can be sutured and excised, and the same effect can be obtained.
[0103]
28 to 31 show a tenth configuration example. Since the suturing endoscope 155 is the same as the parent suturing endoscope 136 described above, the same components are denoted by the same reference numerals, description thereof will be omitted, and different portions will be described.
[0104]
A screw hole 157 communicating with the channel 156 is formed at the center of the housing 138. A screw portion 159 provided at the base end portion of the anvil shaft 158 is screwed into the screw hole 157, and the anvil shaft 158 is provided in the operation portion 161 via an anvil wire 160 inserted through the channel 156. The anvil rotation handle 162 is connected.
[0105]
A spiral anvil 163 is fixed to the tip of the anvil shaft 158 protruding forward from the housing 138, and a sharp tip 164 is provided at the spiral tip of the anvil 163. Further, a staple forming groove 148 facing the staple 125 is provided on the back surface of the anvil 164.
[0106]
Next, the operation of the suture endoscope configured as described above will be described. As shown in FIG. 31, after the duodenum 111 is sutured to the stomach 110 under a laparotomy or laparoscope, the suture endoscope 155 is inserted orally and the anvil 163 is pressed against the stomach wall 113.
[0107]
Then, by rotating the anvil rotation handle 162, the screw portion 159 of the anvil shaft 158 is screwed into the screw hole 157 to advance while rotating, the tip 164 is inserted into the stomach wall 113, and the duodenum wall 114 is further moved. It penetrates and protrudes into the duodenum 111.
[0108]
Next, by reversely rotating the anvil rotation handle 162, the screw portion 159 of the anvil shaft 158 is screwed into the screw hole 157 and retreats while rotating, so that the anvil 163 is pressed inside the duodenum wall 114, and the stomach wall 113 The duodenal wall 114 is sandwiched between the housing 138 and the anvil 163.
[0109]
In this state, when the suturing operation portion 8 is operated to cause the staple 125 to protrude, the leg portion of the staple 125 is inserted into the stomach wall 113 and the duodenum wall 114, and the leg portion of the staple 125 is bent by the staple forming groove 148. Then, the stomach wall 113 and the duodenum wall 114 are sutured by a plurality of staples 125.
[0110]
32 to 35 show a first embodiment of the present invention. Since the suture endoscope 165 has basically the same structure as the suture endoscope 155 described above, the same components are denoted by the same reference numerals, description thereof is omitted, and different portions will be described.
[0111]
A suction member 166 is provided at the central portion of the housing (stapler) 138 so as to be freely advanced and retracted by the interference adjusting ring 7. The suction member 166 is provided with an observation optical system (observation window) 167 and an illumination optical system (illumination window) 168. Furthermore, an annular suction groove 169 is provided on the outer peripheral surface at the tip of the suction member 166. The suction groove 169 communicates with a suction tube 171 inserted in the suction member 166 via a suction port 170.
[0112]
A guide pipe 172 is inserted through the axial center of the suction member 166. An anvil shaft 173 is inserted into the guide pipe 172 so as to freely advance and retract. An anvil 174 having an arc convex surface at the front end is fixed to the distal end portion of the anvil shaft 173, and an anvil adjustment ring 162 provided in the operation portion 161 is provided at the proximal end portion of the anvil shaft 173. Further, an opening window (opening) 176 facing the observation optical system 167 and the illumination optical system 168 is provided in a part of the anvil 174.
[0113]
Next, the operation of the suture endoscope configured as described above will be described with reference to FIG.
[0114]
As shown in (a), with the anvil shaft 173 retracted and the anvil 174 joined to the housing 138, the suture member 4 is inserted into the intestine 177 through the anus and guided to the resection range 177a.
[0115]
As shown in FIG. 6B, when the suture member 4 reaches the cutting range 177a, the anvil adjusting ring 162 is operated to project the anvil shaft 173, and the anvil 174 is projected forward from the housing 138 to thereby move the housing 138 and the anvil 174. The interval is adjusted to the ablation range 177a.
[0116]
As shown in (c), when suction is performed from the suction groove 169 via the suction tube 171, the intestinal tract 177 is sucked inward and a part of the intestinal tract 177 is adsorbed by the suction groove 169.
[0117]
(D) When the anvil shaft 173 is retracted and the anvil 174 is retracted into the housing 138, the excised range 177 a of the adsorbed intestinal canal 177 is retracted into the housing 138 and is sandwiched between the anvil 174.
[0118]
(E) When the staple 125 provided in the housing 138 is protruded, the staple 125 is inserted into the folded portion 177b of the intestinal canal 177, and the leg portion of the staple 125 is bent and stitched by the staple forming groove 148 of the anvil 174. At the same time, the inside of the stitched portion 177c is cut by the cutter 137a.
[0119]
36 and 37 show a second embodiment of the present invention. This is basically the same as that of the first embodiment (see FIGS. 32 to 35), and the outer peripheral surface of the distal end portion of the suction member 178 that is movable back and forth with respect to the housing 138 of the suture endoscope 165 has an annular first surface. One suction groove 179 and a second suction groove 180 are provided. First and second suction tubes 181 and 182 communicate with the first suction groove 179 and the second suction groove 180 independently.
[0120]
Next, the operation of the suture endoscope configured as described above will be described with reference to FIG.
[0121]
As shown in (a), the excision 177d of the intestine 177 is excised by laparotomy or laparoscope, while the anvil shaft 173 is retracted and the anvil 174 is joined to the housing 138, the suture member 4 is inserted into the intestine from the anus. It is inserted into 177 and guided to the front of the excision 177d.
[0122]
As shown in (b), the suture member 4 is protruded from the cut portion 177b, the anvil adjusting ring 175 is operated to protrude the anvil shaft 173, and the anvil 174 is protruded forward from the housing 138. Then, when suction is performed from the second suction groove 180 via the second suction tube 182, the excised end portion of the intestinal tract 177 is sucked inward and is attracted to the second suction groove 180.
[0123]
As shown in (c), when the suture member 4 is further advanced and sucked from the first suction groove 179 via the first suction tube 181, the other excised end of the intestinal canal 177 is sucked inward. It is attracted to the first suction groove 179.
[0124]
(D) When the anvil shaft 173 is retracted and the anvil 174 is retracted into the housing 138, the excised end portion of the adsorbed intestine 177 is held between the housing 138 and the anvil 174. When the staple 125 provided in the housing 138 is protruded, the staple 35 is inserted into the cut end portion of the intestinal tract 177, and the leg portion of the staple 35 is bent and stitched by the staple forming groove 148 of the anvil 174, and at the same time the cutter. The inside of the suture part 177c is excised by 137a.
[0125]
(E) The suturing member 4 is retracted from the suturing portion, the suturing portion is observed and confirmed by observation means, and is extracted from the anus.
[0126]
38 to 43 show an eleventh configuration example of the tissue suture ligator. An insertion portion 191 is connected to the operation portion 190, and a housing 192 is provided at the distal end portion of the insertion portion 191. A flexible tube 194 of an endoscope 193 is inserted into the operation unit 190 and the insertion unit 191, and an observation optical system 195, an illumination optical system 196, an air / water supply channel 197, and a suction tube 198 are inserted into the flexible tube 194. It is inserted.
[0127]
Suction holes 199 are formed at equal intervals in the circumferential direction on the outer peripheral surface of the distal end portion of the housing 192, and this is formed with a suction tube 198 inserted into the flexible tube 194 of the endoscope 193 via the suction path 200. Communicate.
[0128]
On the outer peripheral surface of the housing 192 located behind the suction hole 199, staple discharge holes 201 are formed in two rows in the front and rear at equal intervals in the circumferential direction. In these staple discharge holes 201, staples 202 are inserted in a releasable manner. A staple pusher 203 made of a leaf spring bent in a substantially L shape is provided inside the housing 192, and its base end is fixed inside the housing 192 and its tip is inserted into the staple discharge hole 201.
[0129]
An annular cylinder 204 is provided behind the staple pusher 203 inside the housing 192. A push ring 205 is housed in the annular cylinder 204 so as to freely protrude and retract. That is, when the push ring 205 protrudes due to the hydraulic pressure applied to the annular cylinder 204, the tip of the staple pusher 203 is protruded to discharge the staple 202 from the staple discharge hole 201.
[0130]
The annular cylinder 204 is guided to the operation unit 190 via a hydraulic tube 206 inserted in the insertion unit 191, and communicates with a hydraulic cylinder 207 provided inside the operation unit 190. The hydraulic cylinder 207 is filled with oil, and a pressure ring 208 is inserted so as to be able to advance and retract.
[0131]
An engagement groove 210 is formed by two flanges 209 at the base end of the pressure ring 208. The engagement groove 210 is engaged with a suturing operation handle 211 rotatably provided outside the operation unit 190. The pressurizing ring 208 is advanced by rotating the suturing operation handle 211, and the push ring 205 is operated by the hydraulic pressure of the hydraulic cylinder 207.
[0132]
On the other hand, the anvil forceps 212 fitted to the housing 192 is configured as shown in FIG. That is, the anvil forceps 212 is formed by a semi-annular first anvil part 212 a and a semi-annular second anvil part 212 b that can be opened and closed, and these are provided at the distal end of the insertion part 213. The proximal end portion of the insertion portion 213 is rotatably connected to an opening / closing operation handle 214 that opens and closes the first anvil portion 212a and the second anvil portion 212b. The opening / closing operation handle 214 is provided with a rotation ring 215, and the insertion portion 213 is rotated by rotating the rotation ring 215.
[0133]
A staple forming groove 216 facing the staple 202 of the staple discharge hole 201 is provided on the inner peripheral surfaces of the first anvil portion 212a and the second anvil portion 212b.
[0134]
Next, the operation of the suture endoscope configured as described above will be described with reference to FIG.
[0135]
As shown in (a), the excision part 177b of the intestine 177 is excised by laparotomy or laparoscope, while the housing 192 of the suture endoscope is inserted into the intestine 177 from the anus and guided to the front of the excision part 177d.
[0136]
As shown in (b), when suctioned from a suction hole 199 provided on the outer peripheral surface of the housing 192, the excised end portion of the intestinal canal 177 is adsorbed on the outer peripheral surface of the housing 192. In this state, the housing 192 is advanced and fitted inside the other excision end of the intestine 177. In this state, the first anvil portion 212a and the second anvil portion 212b of the anvil tube 212 are fitted to the overlapping portion of the cut end portion of the intestinal canal 177 so that the staple 202 and the staple forming groove 216 coincide with each other, and the opening / closing operation is performed. By operating the handle 214, the staple 202 is discharged from the staple discharge hole 201, and the overlapped portion of the cut end portion of the intestinal tract 177 is stitched.
[0137]
FIG. 44 shows a twelfth configuration example. An anvil 219 is provided in the middle of the insertion portion 218 of the suture endoscope 217 of this configuration example, and a staple forming groove 220 is provided on the outer peripheral surface. On the other hand, the cartridge 221 fitted to the anvil 219 is divided into a plurality of parts in the circumferential direction, and a staple discharge mechanism 223 for discharging the staples 222 is provided on the inner peripheral surface of these cartridges 221.
[0138]
Therefore, the intestinal tract can be sutured by the staple 222 by inserting the suture endoscope 217 into the intestinal tract, fitting the cartridge 221 from the outside of the intestinal tract toward the anvil 219 at the suture site, and operating the staple release mechanism 223.
[0139]
FIG. 45 shows a thirteenth configuration example, in which the electronic radial ultrasonic probe 224 for Doppler is provided on the outer peripheral surface of the housing 30 of the suture member 4 in the tissue suture ligator shown in the first configuration example. . Therefore, after the tissue is sandwiched between the housing 30 and the anvil 6, scanning is performed by the electronic radial ultrasonic probe 224, and it is confirmed that there is no blood vessel around the suture site, and then the suture can be performed.
[0140]
FIG. 46 shows a fourteenth configuration example. In the tissue suture ligator shown in the fifth configuration example, electronic linear ultrasonic probes 225a and 225b for Doppler are provided on the side portion and the distal end portion of the anvil 84. is there. The surfaces of the electronic linear ultrasonic probes 225a and 225b are attached at an angle to the anvil surface 226, and the electronic linear ultrasonic probe 225b on the tip side is low on the hand side, and the electronic linear ultrasonic probe on the side portion is low. The type ultrasonic probe 225a is lowered on the cutter receiver 227 side.
[0141]
The electronic linear ultrasonic probes 225a and 225b can check the presence or absence of blood by image processing via an observation device (not shown), and sutures when the blood flow level is higher than a preset level. A safety mechanism is provided to prevent this.
[0142]
Therefore, when the tissue to be sutured is sandwiched between the anvil 84 and the cartridge 83 and the blood vessel is sandwiched, the safety mechanism is activated and the suture is not performed, and when the blood vessel is not sandwiched, the suture is performed. As a result, a constant blood flow level can be set without depending on the experience of the operator.
[0143]
47 to 49 show a fifteenth configuration example, in which a Doppler transducer 229 is provided at the distal end portion of the insertion portion 228 of the tissue suture ligator. The insertion portion 228 is provided with a pair of jaws 230 so that the hemostatic clip 231 or the staple can be plastically deformed and placed with a blood vessel or the like interposed therebetween.
[0144]
At this time, it can be confirmed by the transducer 229 that the jaw 230 and the hemostatic clip 231 are within the range of the ultrasonic probe. FIG. 50 shows an arrangement example of the transducer 229 with respect to the insertion unit 228, in which 229a is a transmission side and 229b is a reception side. A balloon may be provided at the distal end of the insertion portion 228 so that water can be injected into the balloon.
[0145]
In the tissue suture ligator, when bleeding is large and blood is not found, blood is collected, the tip of the insertion portion 228 is immersed in the blood, and the jaw 230 and the hemostatic clip 231 are moved to the bleeding site by ultrasonic operation. The bleeding site can be clipped by the hemostatic clip 231 to stop the bleeding. When there is little blood, water may be poured into the balloon and the same operation may be performed via the balloon.
[0146]
51 to 53 show a sixteenth configuration example. A guide wire insertion lumen 233 is provided in the insertion portion 232 of the tissue suture ligator, and the guide wire 234 is inserted into the guide wire insertion lumen 233 from an operation portion (not shown) of the tissue suture ligator so as to freely advance and retract. .
[0147]
On the other hand, a guide wire fixing part 236 protrudes from the anvil 235, and the guide wire 234 is detachably connected to the guide wire fixing part 236.
[0148]
For example, when the small intestine 238 is sutured and communicated with the stomach 237 by using this tissue suture ligator, the anvil 235 is inserted from the cut end of the small intestine 238 by laparoscopic or surgical operation, and the purse string suture is performed by the suture thread 239. Then, the incision hole 241 is opened in the stomach wall 240.
[0149]
On the other hand, the endoscope 242 is orally inserted into the stomach 237, the guide wire 234 is led out, and the distal end portion of the endoscope 242 projects from the incision hole 241 to the outside of the stomach 237 and is connected to the guide wire fixing portion 236.
[0150]
Next, after the endoscope 242 is removed, the insertion portion 232 of the tissue suture ligator is inserted into the stomach 237 using the guide wire 234 as a guide, and the guide wire 234 is pulled toward the proximal side of the tissue suture ligator, thereby inserting the insertion portion. Suture can be performed by sandwiching the cut ends of the stomach wall 240 and the small intestine 238 between the 232 and the anvil 235.
[0151]
54 to 56 show a seventeenth configuration example. The tissue suturing ligator 251 is provided with a grasping portion 252 on the proximal side and an insertion portion 253 connected to the grasping portion 252. A jaw 254 is disposed at the distal end of the insertion portion 253.
[0152]
As shown in FIG. 55, the jaw 254 is provided with a cartridge 255 having a plurality of staples and an anvil 256. In this case, the anvil 256 is supported so as to be openable and closable with respect to the cartridge 255.
[0153]
Further, as shown in FIG. 56, an observation optical system 257 is disposed at the center of the anvil 256, and illumination optical systems 258 and 259 are disposed on both sides of the observation optical system 257, respectively. Here, the observation optical system 257 is provided with an objective lens 260 and a light guide 261 such as an optical fiber.
[0154]
In addition, a knife 262 projects from the cartridge 255 on the side where the anvil 256 is joined. In this case, a knife groove 263 is formed at a position corresponding to the knife 262 on the side of the anvil 256 where the cartridge 255 is joined.
[0155]
Further, the grip 252 is provided with an opening / closing operation part 264 for opening / closing the anvil 256 with respect to the cartridge 255, and a suturing operation part 265 for operating a suturing operation with the jaw 254, and one end of the universal cord 266 is It is connected. The other end of the universal cord 266 is connected to the light source device 267 and the camera control unit 268 via connectors. A monitor 269 is connected to the camera control unit 268.
[0156]
Then, illumination light is supplied from the light source device 267 to the illumination optical systems 258 and 259, and an image sent from the observation optical system 257 is converted into an image signal of an electrical signal by the camera control unit 268, and based on this image signal An image sent from the observation optical system 257 is projected on the screen of the monitor 269.
[0157]
Next, the operation of the above configuration will be described. First, the insertion portion 253 of the tissue suture ligator 251 is inserted into the body cavity via the trocar 269. Next, the observation optical system 257 built in the anvil 256 is used to bring the jaw 254 closer to the suture target tissue while observing the suture target tissue. In this state, the anvil 256 is opened / closed by the opening / closing operation unit 264 to sandwich the tissue between the anvil 256 and the cartridge 255.
[0158]
When the anvil 256 moves to a position where the anvil 256 is closed with respect to the cartridge 255 and grips the tissue, when the handle of the suturing operation portion 265 is gripped, a plurality of staples in the cartridge 255 are driven out against the tissue and the tissue is sutured. Is done.
[0159]
In addition, after the tissue to be sutured is sutured, it is confirmed that the staple driven into the tissue is correctly stapled through the observation optical system 257 while the anvil 256 is moved to the opening position. release.
[0160]
In view of the above, since the observation optical system 257 is provided at the tip of the jaw 254 in the above configuration, it is easy to approach a suture target site that is likely to become a blind spot under an endoscope, and the operability is improved. be able to.
[0161]
Further, since the tip of the jaw 254 is not hooked on the tissue, the suture target site is accurately placed between the jaws 254. Further, after the tissue is sutured, it can be confirmed whether or not each staple is stapled with respect to the tissue.
[0162]
The observation optical system 257 described in this configuration example uses an optical system using a glass fiber, but an imaging element such as a CCD may be used instead. Further, a hole in which the observation optical system 257 is incorporated may be provided as a channel, and a fiberscope, an ultrasonic probe, or the like may be inserted into the channel.
[0163]
FIG. 57 shows an eighteenth configuration example. This is because a bending portion 271 that can be bent and deformed is provided on the distal end side of the insertion portion 253 of the seventeenth configuration example, and this bending portion 271 is remotely controlled by a bending operation lever (not shown) provided on the grip portion 252 on the hand side. In this configuration, the jaws 254 are changed to four directions, for example, up, down, left, and right by bending.
[0164]
Here, the bending portion 271 has a plurality of four-way bending pieces 272 that can be bent in, for example, four directions, which are arranged in parallel along the axial direction in the distal end portion of the insertion portion 253, and the bending pieces 272 are bent in the vertical direction. A pair of up and down bending operation wires 273 and 273 to be operated and a pair of left and right bending operation wires 274 and 274 for bending the four-direction bending piece 272 in the left and right directions are provided.
[0165]
Therefore, in the case of the above configuration, when the tissue to be sutured is inserted into the jaw 254, the bending portion 271 is bent vertically and horizontally by a bending operation lever (not shown) provided on the grip portion 252 on the proximal side. The jaw 254 can be more easily approached to the suture target site, and the site to be sutured can be sandwiched between the jaws 254 with high accuracy.
[0166]
Furthermore, since the direction of the jaw 254 can be changed to, for example, four directions (up, down, left and right) while observing with the observation optical system 257, the tissue to be sutured can be observed from various angles, and the affected part can be diagnosed efficiently. be able to.
[0167]
58A to 58C show a nineteenth configuration example. This is provided with a clip device 281 for ligating a blood vessel or the like. As shown in FIG. 58A, the clip device 281 is provided with a gripping portion 282 on the hand side and an insertion portion 283 connected to the gripping portion 282.
[0168]
The grip portion 282 on the hand side is provided with a bending operation lever 284 and a handle 285. A bending portion 286 that can be operated by a bending operation lever 284 is provided on the distal end side of the insertion portion 283. Further, a jaw 288 for holding the clip therebetween and closing the clip is disposed at the front end portion 287 on the front side of the curved portion 286, and an observation means 289 is provided in the vicinity of the jaw 288. Is provided.
[0169]
As shown in FIG. 58B, the observation means 289 is provided with an observation optical system 290 at the center and illumination optical systems 291 and 291 on both sides of the observation optical system 290, respectively. Here, as shown in FIG. 58C, the observation optical system 290 is provided with an objective lens 292 and a light guide 293 such as an optical fiber.
[0170]
Further, as shown in FIG. 58 (C), a plurality of clips 294 are accommodated in the distal end portion 287, and a clip feeding device 295 for feeding the clips 294 in the distal end portion 287 one by one is disposed. Yes.
[0171]
The hand grip 282 is connected to a light source device 267 and a camera control unit 268 via a universal cord 296, respectively. A monitor 269 is connected to the camera control unit 268.
[0172]
Then, illumination light is supplied from the light source device 267 to the illumination optical systems 291 and 291 and an image sent from the observation optical system 290 is converted into an image signal of an electrical signal by the camera control unit 268, and based on this image signal An image sent from the observation optical system 290 is projected on the screen of the monitor 269.
[0173]
Therefore, in the above configuration, the observation means 289 performs an operation of positioning the ligation target part between the jaws 288 while observing the part ligation target and the image 288 ′ of the jaw 288 through the monitor 269. By closing the jaw 288, the clip 294 is deformed and the ligation target portion is ligated. Therefore, since the distal end side of the jaw 288 can be directly seen by the observation means 289, the jaw 288 can be brought close to the ligation target portion without hiding the visual field of the observation means 289 by the insertion portion 283.
[0174]
Further, the observation means 289 of the distal end portion 287 can quickly know the abnormality of the ligated portion such as the displacement of the clip 294 and bleeding. As a modification of this configuration example, a solid-state imaging device, a laser Doppler device, an ultrasonic probe, or the like may be used for the observation unit 289.
[0175]
59A to 59C and FIG. 60 show a twentieth configuration example. This is a suturing device 301 for suturing a tissue incision by closing a substantially V-shaped metal staple. As shown in FIG. 59A, the suturing device 301 is provided with a grip portion 302 on the hand side and an insertion portion 303 connected to the grip portion 302.
[0176]
The grip portion 302 on the hand side is provided with a bending operation lever 304 and a handle 305. A bending portion 306 that can be operated by a bending operation lever 304 is provided on the distal end side of the insertion portion 303.
[0177]
As shown in FIG. 59B, an anvil 308 is fixed to the tip of tip portion 307 on the front side of this curved portion 306. Further, inside the distal end portion 307, as shown in FIG. 59 (C), a forming blade 316 for forming the staple 315 in cooperation with the anvil 308 is slidably provided. A staple storage unit 314 is provided on the upper side, and a plurality of staples 315 are stored in the staple storage unit 314. In this case, the staple storage unit 314 is provided with a biasing unit that biases the staple 315 so as to press the staple 315 toward the front end side.
[0178]
An observation means 309 is disposed in the vicinity of the anvil 308 at the distal end portion 307. The observation means 309 is provided with an observation optical system 310 and an illumination optical system 311 disposed around the observation optical system 310. Here, the observation optical system 290 is provided with an objective lens 310 and a light guide 313 such as an optical fiber.
[0179]
Next, the operation of the above configuration will be described. First, while observing the tissue incision through the monitor 269 by the observation means 309, the distal end portion 307 of the insertion portion 303 is approached, and the target site is sutured.
[0180]
During this stitching operation, the anvil 308 and the forming blade 316 cooperate to form the staple 315, and the forming operation of the staple 315 shown in FIGS. 60 (A) to (D) is performed.
[0181]
That is, as shown in FIG. 60 (A), the staple 315 fed from the staple storage portion 314 to the tip of the forming blade 316 reaches a position where it abuts on the anvil 308 as shown in FIG. 60 (B). Pushed forward. At this time, the image 308 ′ of the anvil 308 and the image 315 ′ of the staple 315 are displayed on the screen of the monitor 269.
[0182]
Here, after the staple 315 is brought into contact with the anvil 308, the forming blade 316 is slid toward the incision 319a side of the tissue to be sutured 319 as it is. Therefore, as shown in FIG. 60C, the staple 315 is strongly pressed against the anvil 308 and starts to deform, and the tips of both ends of the staple 315 are pierced into the tissue 319 at the suture target site on both sides of the incision 319a. Entered.
[0183]
Finally, the staple 315 is transformed into a completely closed state as shown in FIG. 60D, and the forming operation of the staple 315 is completed. At this time, the incision wall surfaces 319a on both sides of the incision 319a in the tissue 319 at the suture target site are joined by the staple 315, and the incision 319a of the suture target tissue 319 is sutured. Reference numeral 37 denotes a discharge spring for the staple 315.
[0184]
Accordingly, in the above configuration, the observation means 309 is disposed in the vicinity of the anvil 308 at the distal end portion 307, and this observation means 309 passes the monitor 269 to the area to be sutured and the image 308 ′ and staples of the anvil 308. Since the incision portion 319a of the tissue 319 to be sutured can be sutured while directly observing the image 315 ′ of 315, the field of the observation means 309 is not hidden by the insertion portion 303, and the staple 315 is hidden. Can be accurately approached to both side positions of the incision 319a of the tissue 319 to be sutured.
[0185]
In addition, abnormalities such as the staple 315 not being fixed to the tissue accurately or bleeding can be known quickly, so that the incision portion 309a of the suture target tissue 309 can be efficiently sutured. Also in this case, a solid-state imaging device, a laser Doppler device, an ultrasonic probe, or the like may be used for the observation unit 289.
[0186]
Next, other characteristic technical matters of the present application are appended as follows.
Record
(Additional Item 1) A tissue suture ligator comprising a radial-type Doppler ultrasonic probe provided at a staple releasing portion of a circular stapler.
[0187]
(Additional Item 2) A tissue suture ligator characterized in that linear Doppler ultrasonic probes are provided on the side and tip of the staple line of the linear cutter.
[0188]
(Additional Item 3) A tissue suturing ligator characterized in that a Doppler ultrasonic probe is provided at the tip of the clip device.
[0189]
(Additional Item 4) A jaw is disposed at the distal end portion of the insertion portion connected to the grip portion on the proximal side, and a stapler having a plurality of staples on the jaw and an anvil for forming the staple and fixing it to the tissue are opened and closed. As well as possible support,
Arranging observation means at the tip of the anvil,
A tissue suture ligator is provided, further comprising a linear cutter for excising the tissue sutured between the joint surfaces of the stapler and the anvil.
[0190]
(Additional Item 5) The tissue suture ligator according to Additional Item 4, wherein the attachment portion of the observation means is formed by a channel, and a fiberscope or an ultrasonic probe can be inserted into the channel. .
[0191]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a tissue suture ligator that can be sutured more easily and can be easily confirmed.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of a suture member of a tissue suture ligator showing a first configuration example of a tissue suture ligator.
FIG. 2 is an overall perspective view of the tissue suture ligator of the same configuration example.
FIG. 3 is an operation explanatory diagram of the same configuration example.
FIG. 4 is a diagram illustrating the operation of the same configuration example.
FIG. 5 is a perspective view of a suture member showing a second configuration example of a tissue suture ligator.
FIG. 6 is a longitudinal side view of the suture member of the same configuration example.
FIG. 7 is a perspective view of a suture member showing a third configuration example of a tissue suture ligator.
FIG. 8 is a longitudinal side view of a suture member of the same configuration example.
FIG. 9 is an overall perspective view of a tissue suture ligator showing a fourth configuration example of the tissue suture ligator.
FIG. 10 is a longitudinal side view of the suture member of the same configuration example.
FIG. 11 is a perspective view of a suturing member having the same configuration example.
FIG. 12 is a perspective view of a suture member showing a fifth configuration example of the tissue suture ligator.
FIG. 13 is a diagram illustrating the operation of the same configuration example.
FIG. 14 is a diagram illustrating the operation of the same configuration example.
FIG. 15 is a perspective view of a suture member showing a sixth structural example of a tissue suture ligator.
FIG. 16 is a diagram illustrating the operation of the same configuration example.
FIG. 17 is a diagram illustrating the operation of the same configuration example.
FIG. 18 is a perspective view showing a modification of the sixth structural example of the tissue suture ligator.
FIG. 19 is a perspective view of a distal end portion of a suture member showing a seventh configuration example of the tissue suture ligator.
FIG. 20 is a perspective view of an anvil forceps having the same configuration example.
FIG. 21 is an operation explanatory diagram of the same configuration example.
FIG. 22 is a perspective view of a suture member showing an eighth configuration example of a tissue suture ligator.
FIG. 23 is a diagram illustrating the operation of the same configuration example.
FIG. 24 is a diagram illustrating the operation of the same configuration example.
FIG. 25 is a perspective view of a suture member showing a ninth configuration example of a tissue suture ligator.
FIG. 26 is a diagram illustrating the operation of the same configuration example.
FIG. 27 is a diagram illustrating the operation of the same configuration example.
FIG. 28 is a perspective view of a suture member showing a tenth configuration example of a tissue suture ligator.
29 is a cross-sectional view taken along the line aa in FIG. 28. FIG.
FIG. 30 is a diagram illustrating the operation of the same configuration example.
FIG. 31 is a diagram illustrating the operation of the same configuration example.
FIG. 32 is a perspective view of the entire tissue suture ligator showing the first embodiment of the present invention.
FIG. 33 is a perspective view of the suturing member of the embodiment.
FIG. 34 is a longitudinal side view of the suturing member of the embodiment.
FIG. 35 is an explanatory diagram of the operation of the embodiment.
FIG. 36 is a longitudinal side view of a suturing member showing a second embodiment of the present invention.
FIG. 37 is an operation explanatory diagram of the embodiment.
FIG. 38 is a perspective view of a tissue suture ligator showing an eleventh configuration example of the tissue suture ligator.
FIG. 39 is a longitudinal side view of the suturing member of the same configuration example.
FIG. 40 is a side view in which a part of the housing of the same configuration example is cut away.
FIG. 41 is a side view in which a part of the operation unit of the same configuration example is cut away.
FIG. 42 is a perspective view of the anvil forceps of the same configuration example.
FIG. 43 is an operation explanatory diagram of the same configuration example.
44 is a perspective view of a tissue suture ligator showing a twelfth configuration example of the tissue suture ligator. FIG.
FIG. 45 is a side view of a suture member showing a thirteenth configuration example of a tissue suture ligator.
FIG. 46 is a plan view of an anvil of a suture member showing a fourteenth configuration example of a tissue suture ligator.
FIG. 47 is a side view in which a distal end portion of a tissue suturing ligator showing a fifteenth configuration example of the tissue suturing ligator is partially cut out.
FIG. 48 is a plan view of the distal end portion of the tissue suture ligator of the same configuration example.
49 is a front view of the insertion portion of the tissue suture ligator of the same configuration example. FIG.
FIG. 50 is a front view of the insertion portion of the tissue suture ligator showing a modification of the fifteenth configuration example of the tissue suture ligator.
FIG. 51 is an explanatory diagram of a use state of the tissue suture ligator showing the sixteenth configuration example of the tissue suture ligator.
FIG. 52 is an explanatory diagram of a usage state of the same configuration example.
FIG. 53 is a state diagram of the stomach and small intestine sutured according to the same configuration example.
FIG. 54 is a schematic configuration diagram of a tissue suture ligator showing a seventeenth configuration example of the tissue suture ligator.
FIG. 55 is a side view in which the distal end portion of the tissue suture ligator of the same configuration example is partially cut away.
56 is a front view seen from the direction of arrow A in FIG. 56. FIG.
FIG. 57 is a schematic configuration diagram of a tissue suture ligator showing an eighteenth configuration example of the tissue suture ligator.
58 shows a nineteenth configuration example of a tissue suture ligator, in which (A) is a schematic configuration diagram of a clip device, (B) is a perspective view of a distal end portion of the clip device, and (C) is a longitudinal sectional view thereof. Figure.
FIGS. 59A and 59B show a twentieth configuration example of a tissue suturing ligator, FIG. 59A is a schematic configuration diagram of a tissue suturing device, FIG. 59B is a perspective view of a distal end portion of the tissue suturing device, and FIG. FIG.
60 is an explanatory diagram of a usage state of the same configuration example. FIG.
FIG. 61 is a perspective view showing a cut-away part of the intestinal tract in a sutured state.
[Explanation of symbols]
125 staples
138 Housing (stapler)
166 Suction member
167 Observation optical system (observation window)
168 Illumination optical system (illumination window)
169 Suction groove
174 Anvil
176 Open window (opening)

Claims (2)

An annular staple holding means provided at the distal end of a long insertion portion to be inserted into the lumen, having a plurality of staples, and discharging the staples;
A suction member provided inside the staple holding means and having an annular suction groove formed on the outer peripheral surface;
An anvil which is provided so as to be movable in a direction of coming into contact with and separating from the staple holding means, and which forms the staple and fixes it to a living tissue;
Comprising
The suction member has an observation window and an illumination window on a surface facing and separated from the anvil;
The anvil has an opening in a portion on the axis of the observation window;
The living body tissue is sucked into the suction groove of the suction member by opening the staple holding means and the anvil, and the staple is formed by closing the staple holding means and the anvil to form the staple. A tissue suture ligator characterized by being fixed to a tissue.   The tissue suture ligator according to claim 1, wherein the suction member is provided so as to be able to advance and retract in the axial direction of the insertion portion.

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