JP7229737B2 - Stent insertion device for connecting human digestive organs - Google Patents

Description

TECHNICAL FIELD The present invention relates to a stent insertion device for connecting human digestive organs, and more particularly, when a portion of the bile duct adjacent to the duodenum develops a stenotic or obstructive lesion, an abscess caused by digestive enzymes or lesions in the liver and pancreas. The present invention relates to a stent insertion device for connecting the human digestive tract, which connects the stomach and the bile duct so that the gas moves to the stomach by osmotic pressure.

In general, when a narrowed or obstructed lesion occurs in a lumen of the human body, such as the esophagus, duodenum, biliary tract, urethra, or ureter, there is a problem that the intrinsic function of the lumen for moving body fluids deteriorates. Occurred.

For this reason, conventionally, a stent is inserted through an insertion device to the site of a stenosed or occluded lesion to expand the narrowed lumen.

In this regard, in Patent Document 1, a push rod is inserted from the rear into an external tube connected to a gripping body so as to protrude forward. Attaching a mounting tube whose rear end is inserted into the distal end of the external tube in a state in which the stent is inserted and mounted by reducing the volume, and pushing the mounting tube with the push rod from the rear end of the stent to the distal end To provide a device for inserting a stent for treatment of body constriction site, characterized in that it is constructed so as to be gradually expanded and restored to its original state.

However, at present, when a part of the bile duct adjacent to the duodenum develops a stricture or obstruction, gastrointestinal tracts are used to prevent an abscess from accumulating in the bile duct due to the digestive enzymes of the liver and pancreas or the lesion. The current situation calls for a stent insertion device that connects the bile ducts.

Korean Patent No. 10-0822045

Therefore, the present invention provides a gastrointestinal tract so that an abscess caused by digestive enzymes in the liver and pancreas or a lesion site moves to the stomach due to osmotic pressure when a lesion site that narrows or obstructs a part of the bile duct adjacent to the duodenum occurs. It is an object of the present invention to provide a stent insertion device for connecting a human digestive tract that connects bile ducts.

In order to achieve the above object, the present invention provides a first handle connected to one side of an external tube, a first internal passage communicating with the external tube formed in the first handle, and the external tube and the first handle. A second handle is connected to one side of an inner tube movably inserted into one inner passage, a second inner passage communicating with the inner tube is formed in the second handle, and a second inner passage is formed on the opposite side of the inner tube. A mounting space is formed between the external tube and a stent for connecting a human digestive organ in a crimped state, and a third insulating tube is provided on one side of the insulating tube movably inserted into the internal tube and the second internal passage. A handle is connected, and the third handle is formed with a third internal passage communicating with the insulating tube, and the opposite side of the insulating tube is exposed from the inner and outer tubes when the stomach and bile duct are perforated. A stent insertion device for connecting a human digestive organ is provided, characterized in that a needle knife is connected to the needle knife, and the needle knife is formed with a fourth internal passage communicating with the insulating tube.

Advantageous Effects of Invention The present invention has the effect of rapidly performing perforation of the stomach and bile ducts by the penetrating power of the needle knife and the high-frequency heat of the needle knife.

In addition, since a hole is formed in the stomach and bile duct by the penetrating force of the needle knife and the high-frequency heat of the needle knife, there is an effect that incision work for the stomach and bile duct is unnecessary.

In addition, since the guide wire prevents the bending of the inner and outer tubes and the insulation tube, straightness is improved, and the inner and outer tubes and the insulation tube can be rapidly moved back and forth depending on the treatment situation.

That is, the procedure for installing the stent for connecting the human digestive organ is quickly performed, thereby reducing the physical burden on the patient.

The present invention has the effect that the needle knife is inserted into the inner tube by backward movement of the third handle after the hole formation operation is completed in the stomach and bile duct.

In other words, it is effective in preventing the needle knife from unnecessarily piercing the bile duct or unnecessarily scorching the inner surface of the bile duct due to the high-frequency heat generated by the needle knife after completing the hole formation procedure in the stomach and bile duct.

1 is a front view of a stent insertion device for connecting a human digestive organ according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of FIG. 1; FIG. FIG. 2 is a view showing the state of use of the device for inserting a stent for connecting human digestive organs according to an embodiment of the present invention; FIG. 2 is a view showing the state of use of the device for inserting a stent for connecting human digestive organs according to an embodiment of the present invention; FIG. 2 is a view showing the state of use of the device for inserting a stent for connecting human digestive organs according to an embodiment of the present invention; FIG. 2 is a view showing the state of use of the device for inserting a stent for connecting human digestive organs according to an embodiment of the present invention; FIG. 2 is a view showing the state of use of the device for inserting a stent for connecting human digestive organs according to an embodiment of the present invention;

The embodiments of the present invention as described above will now be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 7, the stent insertion device 100 for connecting the human digestive organ according to the embodiment of the present invention can be used when a part of the bile duct 4 adjacent to the duodenum 3 is narrowed or obstructed. It is used when the stent 1 for connecting the human digestive organ is used to connect the stomach 5 with the stomach 4 .

That is, the device 100 for inserting a stent for connecting the human digestive organ performs surgery with the stent 1 for connecting the human digestive organ so that an abscess caused by digestive enzymes in the liver 6 and the pancreas 7 or a lesion site moves to the stomach 5 due to osmotic pressure. used when

The stent insertion device 100 for connecting human digestive organs includes an external tube 10 and a first handle 11 connected to one side of the external tube 10 .

Here, the first handle 11 is formed with a first internal passage 11 a communicating with the external tube 10 .

The stent insertion device 100 for connecting the human digestive organ includes an outer tube 10, an inner tube 20 movably inserted into the first inner passage 11a, and a second handle 21 connected to one side of the inner tube 20. including.

Here, the second handle 21 is formed with a second internal passage 21a communicating with the internal tube 20, and the stent 1 for connecting human digestive organs is crimped between the internal tube 20 and the external tube 10 on the opposite side of the internal tube 20. A mounting space 20a is formed for mounting in a state.

The stent insertion device 100 for connecting human digestive organs includes an insulating tube 30 movably inserted into the inner tube 20 and the second internal passage 21a, and a third handle 31 connected to one side of the insulating tube 30. including.

Here, the third handle 31 is formed with a third inner passage 31a communicating with the insulating tube 30, and the opposite side of the insulating tube 30 is formed inside and outside when performing a perforation operation on the stomach 5 and the bile duct 4. A needle knife 32 exposed from the tubes 10, 20 is connected.

Further, the needle knife 32 is formed with a fourth internal passage 32a communicating with the insulating tube 30, and the third internal passage 31a, the insulating tube 30, and the electric current of the high frequency generator 2 inserted into the fourth internal passage 32a. Line 2a is connected.

The stent insertion device 100 for connecting human digestive organs includes a guide wire 40 movably inserted into the third internal passage 31a, the insulating tube 30, and the fourth internal passage 32a.

The stent 1 for connecting the human digestive organ is provided with expanded tubular portions 1a on both sides and is coated with a medical film having affinity with the human body.

The operation and effect of the stent insertion device 100 for connecting the digestive organs of the human body according to the embodiment of the present invention constructed as described above will be described as follows.

As shown in FIGS. 1 to 7, if a portion of the bile duct 4 adjacent to the duodenum 3 is narrowed or obstructed by a lesion, the surface of the human body is partially incised, and the incised portion passes through the body. The endoscope and the outer tube 10 are pushed into the interior of the.

Here, the needle knife 32 is not exposed from the inner and outer tubes 10 and 20, and the guide wire 40 is inserted into the third internal passage 31a, the insulating tube 30, and the fourth internal passage 32a. The stent 1 for connecting human digestive organs is mounted in a mounting space 20a formed between the outer tubes 10 and 20 in a crimped state.

After confirming the position of the stomach 5 to be treated with the endoscope, the external tube 10 is positioned at the position of the stomach 5 to be treated.

After that, the third handle 31 is advanced to expose the needle knife 32 from the inner and outer tubes 10 and 20, and then the high frequency generator 2 is operated to supply current to the needle knife 32 through the electric wire 2a. do.

Then, the needle knife 32 generates high-frequency heat.

Thereafter, the first, second and third handles 11, 21, 31 and the guide wire 40 are advanced together from the stomach 5 to the bile duct 4 so that the needle knife 32 forms a hole in the stomach 5 and the bile duct 4. pass through.

Here, the stomach 5 and the bile duct 4 are charred by the high-frequency heat generated by the needle knife 32, and the hole is formed by the penetrating force of the needle knife 32. FIG.

In addition, when the needle knife 32 is used to perform puncture surgery on the stomach 5 and the bile duct 4, the guide wire 40 supports the inner and outer tubes 10 and 20 and the insulating tube 30, so that the inner and outer tubes 10 and 20 are insulated from the advancing inner and outer tubes 10 and 20. The bending phenomenon does not occur in the tube 30. - 特許庁

After the hole formation operation is completed in the stomach 5 and the bile duct 4, the third handle 31 is moved backward to insert the needle knife 32 located inside the bile duct 4 into the internal tube 20, and the high-frequency generator 2 is operated. interrupt the operation of

Here, the third handle 31 moves backward along the guide wire 40 inserted into the third internal passage 31a, and the insulating tube 30 also moves backward along the inserted guide wire 40. As shown in FIG.

After that, by moving the first handle 11 backward, the external tube 10 is moved backward until the stent 1 for connecting the human digestive organ, which is crimped in the mounting space 20a of the internal tube 20, expands to its original state.

Here, the first handle 11 moves backward along the inner tube 20 inserted into the first internal passage 11a, and the outer tube 10 moves backward along the inserted inner tube 20 as well.

Then, the stent 1 for connecting the human digestive organs is inserted into the hole formed in the stomach 5 and the bile duct 4, and the expanded tube portion 1a of the stent 1 for connecting the human digestive organ is placed around the hole.

That is, the stomach 5 and the bile duct 4 are connected by the stent 1 for connecting human digestive organs.

After that, by moving the first, second and third handles 11, 21 and 31 backward, the inner and outer tubes 10 and 20, the insulating tube 30 and the needle knife 32 are moved backward so as to escape from the human body.

Here, since the guide wire 40 inserted into the third inner passage 31a, the insulating tube 30 and the fourth inner passage 32a supports the inner and outer tubes 10, 20 and the insulating tube 30, the inner and outer tubes 10 move backward. 20 and the insulating tube 30 are not bent.

Then, the guide wire 40 is moved backward so as to come out of the human body, thereby completing the procedure for installing the stent 1 for connecting the human digestive organ.

Then, the digestive enzymes of the liver 6 and the pancreas 7 do not accumulate in the site of the constriction or obstruction occurring in a part of the bile duct 4 adjacent to the duodenum 3, and are transferred from the bile duct 4 to the stent 1 for connecting human digestive organs by osmotic pressure. It will move to the stomach 5 along.

That is, the digestion of food and drink, which has been performed in the duodenum 3, is performed in the stomach 5 by the digestive enzymes of the liver 6 and pancreas 7 described above.

In addition, since the abscess generated by the lesion also moves to the stomach 5 due to the osmotic pressure, the abscess does not accumulate in the narrowed or obstructed lesion formed in a part of the bile duct 4 adjacent to the duodenum 3 .

On the other hand, the stent inserting device 100 for connecting the human digestive organ can be used to insert a needle through an electric wire 2a when high-frequency heat is not required when perforation is performed on the stomach 5 and bile duct 4, that is, when the procedure is performed non-electrically. The RF generator 2 is deactivated so that the knife 32 is not supplied with current.

That is, the treatment is performed only by the penetrating force of the needle knife 32 without the high-frequency heat.

Although the present invention has been illustrated and described above based on specific preferred embodiments, the present invention is not limited to the above-described embodiments, and can be applied within the technical field to which the present invention belongs without departing from the spirit of the present invention. Various changes and modifications will be possible for those of ordinary skill in the art.

REFERENCE SIGNS LIST 10 outer tube 11 first handle 11a first internal passage 20 inner tube 20a mounting space 21 second handle 21a second internal passage 30 insulating tube 31 third handle 31a third internal passage 32 needle knife 32a fourth internal passage 40 guide wire 100 Stent insertion device for connecting human digestive organs

Claims (1)

A first handle (11) is connected to the rear side of the external tube (10), and a first internal passage (11a) communicating with the external tube is formed in the first handle. The outer shape is larger than the outer shape of the external tube (10), and the first handle (11) has a portion inclined toward a connection portion with the external tube (10),
A second handle (21) is connected to the rear side of the inner tube (20) movably inserted into the outer tube and the first inner passage, and the second handle (21) is connected to the second inner tube communicating with the inner tube. A passageway (21a) is formed, and a mounting space is formed between the inner tube and the outer tube so that a stent for connecting human digestive organs is mounted in a crimped state. , the outer shape of the inner tube (20) is larger than that of the inner tube (20), the second handle (21) has a portion inclined toward the connection portion with the inner tube (20), and the second handle (21) is , located behind the first handle (11),
A third handle (31) is connected to the rear side of the insulating tube (30) movably inserted into the inner tube and the second inner passage, and the third handle (31) is provided with a third inner part communicating with the insulating tube. A passage (31a) is formed, the external shape of the third handle (31) is larger than the external shape of the insulating tube (30), and the third handle (31) is a connecting portion with the insulating tube (30). having a portion sloping toward
A needle knife (32) exposed from the inner and outer tubes is connected to the front side of the insulating tube for performing hole formation in the stomach and bile duct,
A fourth internal passage (32a) communicating with the insulating tube is formed in the needle knife,
The insulating tube is inserted into the fourth internal passage and is a tube for insulating the electric wire (2a) connecting the needle knife (32) and the high frequency generator (2),
a guide wire (40) movably inserted into the third internal passageway, the insulating tube and the fourth internal passageway;
the needle knife (32) is inserted into the inner tube (20) by backward movement of the third handle (31) after completing the hole formation operation in the stomach and bile duct ;
the internal space (21a) of the second handle (21) has an inclined space into which the inclined portion of the third handle (31) is inserted;
A device for inserting a stent for connecting human digestive organs, wherein the third handle (31) is inserted from the rear side of the inner space (21a) of the second handle (21).

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