JP3042299B2 - Puncture treatment tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a puncture treatment device which is inserted into a body cavity directly or through a guide means such as an ultrasonic diagnostic apparatus and used for supplying a medical solution or the like.

[0002]

2. Description of the Related Art For example, an ultrasonic endoscope is used to perform an examination or diagnosis by being inserted into a body or to perform an appropriate treatment based on the result of the examination or diagnosis. This ultrasonic endoscope has a configuration in which an ultrasonic observation unit and an endoscope observation unit are provided at a distal end of an insertion portion inserted into a body cavity. The state of the inner wall of the body cavity and the like can be inspected by the endoscope observation means, and the information on the tissue in the body can be acquired by the ultrasonic observation means. In these tests, when an affected part is found, a treatment tool is inserted and appropriate treatment is performed.
In order to enable the insertion of the treatment tool, the insertion section is provided with a treatment tool insertion passage. The treatment tool inserted into the treatment tool insertion passage may be, for example, a forceps, a high-frequency treatment tool, or the like, for collecting tissue cells on the inner wall of a body cavity, or for coagulation /
There are a puncture treatment device that performs hemostasis and a puncture treatment device that punctures the body through the inner wall of a body cavity and injects a drug solution or the like. Conventionally, a puncture treatment instrument including a guide member formed of a tube having an open end and a puncture member inserted into the guide member and provided with a puncture needle at the end is conventionally used. The puncture member is provided with a supply path for the chemical solution in the axial direction, and this supply path is open at the tip where the puncture needle is provided. The medicinal solution is injected toward the affected part or the like.

[0003]

By the way, when a medical solution or the like is injected into an affected part using a puncture treatment tool, if the puncturing direction is correctly directed to the affected part, the puncturing depth is adjusted. A medicinal solution or the like can be injected into the affected part, but if the piercing direction is shifted from the affected part, the medicinal solution does not reach the affected part. However, it is extremely difficult to accurately aim at the affected part of the puncture treatment tool, and if it is not possible to accurately aim, the puncture treatment instrument must be repeatedly pierced, and the damage to the body increases. . In addition, although the medical solution can be injected by changing the position in the puncturing depth direction of the puncture treatment tool, the medical solution cannot be applied in any direction other than the piercing direction. Therefore, there is no other way to inject a drug solution into a certain area, except to change the location of the puncture treatment tool and insert it many times.

[0004] As described above, in the conventional puncture treatment device, a chemical solution cannot be injected except in the puncturing depth direction. Since the operability of the operation is poor and the puncture must be repeatedly performed in some cases, there is a problem that damage to the body is widespread.

The present invention has been made in view of the above points, and an object of the present invention is to minimize the damage in the body and to accurately and widely cover a necessary site with a chemical solution. Etc. are to be easily injected.

[0006]

In order to achieve the above-mentioned object, the present invention provides a guide member comprising a tube having an open end and a body inserted through the guide member.
A first puncture member having a distal end serving as a puncture needle that can be pierced into a body wall, and an internal passage provided in the interior thereof, and an insertion passage opening as a lead-out opening in a side surface portion in the vicinity of the distal end; And a second puncturing member that is inserted into the insertion passage of the first puncturing member and protrudes from an outlet thereof at a predetermined angle with respect to the axis of the first puncturing member. It is a feature.

[0007]

The first puncture member and the first puncture member
And a second puncture member inserted through the puncture member
The puncturing member can be made to protrude from the side surface of the first puncturing member. When the second puncture member is made to protrude from the outlet provided on the side surface of the first puncture member in a state where the first puncture member is inserted to a predetermined depth position in the body, the length depends on the protruding length. The supply of a chemical solution or the like can be performed to the site. Further, when the first puncturing member is rotated by a predetermined angle around its axis in a state where the second puncturing member is pulled into the inside of the first puncturing member, the direction in which the second puncturing member protrudes is changed. be able to.

As described above, by changing the direction of the outlet of the first puncture member, even if the puncture direction of the first puncture member is shifted from the site for supplying the drug solution such as an affected part, etc. By rotating the first puncture member about the axis, the second puncture member may be protruded in a state where the outlet is directed toward the diseased part, and therefore, the sniper property to the diseased part and the like becomes extremely good. In addition, if the second puncture member is repeatedly made to protrude and retract while rotating about the axis of the first puncture member, the injection operation of a drug solution or the like into an arbitrary portion of a circular region having a predetermined radius can be performed. It can be carried out. In addition, if the operation performed in this manner is performed while changing the position of the first puncture member in the depth direction, a chemical solution or the like can be injected over a wider range.

By providing a liquid passage opening at the tip of the second puncture member, a chemical solution can be injected from the second puncture member. Further, even when the second puncture member is solid, since the second puncture member is pierced into the body, it is possible to secure the flow path of the drug solution, and thus the second puncture member is formed on the first puncture member. Injection of the chemical solution can also be performed through the insertion passage toward the channel thus secured. Further, the second puncturing member having a liquid passage is used to secure two flow paths in the second puncturing member and between the second puncturing member and the first puncturing member. Then, one of the second puncturing member and the first puncturing member is connected to the suction device, and the other is connected to the chemical solution supply device so that both are operated. The body fluid and the drug solution can be replaced, for example, by injecting the drug solution through the other flow path while sucking the gas, thereby enabling efficient drug solution injection.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the puncture device is configured to be inserted into the body via an ultrasonic endoscope. However, the ultrasonic endoscope is used as a guide means for inserting the puncture device. However, the present invention is not limited to this.

FIG. 1 shows the overall configuration of an ultrasonic endoscope. In the drawing, reference numeral 1 denotes a main body operation section of the ultrasonic endoscope, and an insertion section 2 for insertion into a body cavity is connected to the main body operation section 1. Most of the insertion portion 2 is a flexible portion 2a from the side connected to the main body operation portion 1, and the flexible portion 2a
Is provided with an angle portion 2b, and the angle portion 2b is provided with a rigid distal end portion 2c sequentially.

FIGS. 2 and 3 show the structure of the distal end hard portion 2c. The distal end hard portion 2c is provided with an endoscope observation means and an ultrasonic observation means. The endoscope observation means includes an illumination window 3 and an observation window 4 provided on the distal end surface of the distal end hard portion 2c. As is well known, an illumination lens is mounted on the illumination window 3, and an exit end of the light guide faces the illumination window. An observation lens is attached to the observation window 4.
An incident end of a solid-state imaging device or an image guide is provided at an image forming position of the objective lens. Tip hard part 2c
In addition to the above, an air supply / water supply nozzle 5 for cleaning the observation window 4 is provided on the distal end surface of the device, and a treatment instrument insertion channel 6 for inserting a treatment instrument such as forceps is opened. I have.

[0013] As the ultrasonic observation means, the tip hard portion 2c
Having an ultrasonic transducer 7 provided on a side portion of
Circumferential grooves 8a, 8b are formed in front and rear portions of the ultrasonic transducer 7, and these grooves 8a, 8b are formed.
A balloon 9 is attached to a portion between the points b. And
A supply path 10 for supplying an ultrasonic transmission medium is opened at a position inside the groove 8 b in the mounting portion of the balloon 9. Further, a puncture treatment tool insertion passage 11 is provided at a position outside the groove 8b.
Is stabbed into the body through.

The operation of the treatment tool inserted into the treatment tool insertion channel 6 is performed while confirming it by the endoscope observation means. For this reason, the treatment tool insertion channel 6 is connected to the distal end hard portion 2c. Opened at the distal end surface, when the treatment tool is guided out of the body, it is within the visual field range of the endoscope observation means. On the other hand, the puncture treatment tool is pierced into the body, and the operation is performed with the ultrasonic observation means as a key. Therefore, the puncture treatment instrument insertion passage 11 through which the puncture treatment instrument is inserted extends from the base end side of the ultrasonic transducer 7 toward the observation visual field of the ultrasonic transducer 7 so as to enter the ultrasonic observation field of view of the ultrasonic transducer 7. It can be made to project toward. The treatment tool insertion channel 6 and the puncture treatment tool insertion passage 11 extend to the main body operation unit 1. It is connected.

FIGS. 4 to 7 show a first embodiment of the puncture treatment device. 20 is a puncture treatment tool,
The puncture treatment tool 20 has a flexible guide tube 21 having both ends opened. A first puncture member 22 is inserted into the guide tube 21,
The second puncturing member 23 is inserted into the puncturing member 22 of the first embodiment. The first puncture member 22 has a sharp puncture needle portion 22b at the tip of a flexible tube portion 22a.
As is clear from FIG. 5, the insertion passage 24 of the second puncture member 23 is provided inside the tube portion 22a.
Are formed. This insertion passage 24 is a tube portion 22a.
Inside, it extends straight in the axial direction, but is bent at the site of the puncture needle portion 22b to form an outlet port 24a opened to the side surface thereof.

The second puncturing member 23 also includes the first puncturing member 2.
Similar to 2, a puncture needle 23b is connected to the distal end of a flexible tube portion 23a, and a liquid passage 25 penetrating in the axial direction is formed in the second puncture member 23. Have been. A connecting portion 23c is formed at the base end of the second puncturing member 23, and a drug solution supply device 26 formed of a syringe filled with a drug solution is detachably connected to the connecting portion 23c. Has become.

The first puncturing member 22 includes the guide tube 2
1, and the second puncturing member 22 is inserted into the insertion passage 24 of the first puncturing member 22 and protrudes from an outlet 24a opened to the side from the insertion passage 24. It can be made to be. The first puncture member 22 can slide in the guide tube 21 in the axial direction and can rotate around the axis. In the axial direction of the first puncture member 22, as shown by the imaginary line in FIG. 4, from the retracted position drawn into the guide tube 21, as shown by the solid line, the most protruding portion extends by a predetermined length. Sliding displacement is possible up to the protruding position. This first puncturing member 22
The sliding operation of the guide tube 21 can be operated by an operator or the like who operates the ultrasonic endoscope with his / her fingers. For this reason, the guide tube 21 and the proximal end of the first puncturing member 22 Are provided with flange portions 21a and 22c, respectively, and finger hanging rings 27 and 28 are connected to the flange portions 21a and 22a, respectively.

When the puncture device 20 is inserted from the puncture device introduction section 13 in the main body operation section of the ultrasonic endoscope,
The first puncturing member 22 is held at the retracted position.
A click mechanism is provided between and the first puncturing member 22. As shown in FIG. 6, the click mechanism includes a flange 2 at the base end of the guide tube 21.
1a is formed, and a concave groove 29 is formed on the inner surface of the flange portion 21a, and a ring-shaped spring piece 30 is mounted in the concave groove 29. The recesses 29 are provided with a plurality of click receiving portions 29a, 29a, and the spring pieces 30 are provided with engaging portions 30a, 30a which can come and go in the click receiving portions 29a, 29a. A circumferential click groove 31a is formed on the outer surface of the first puncturing member 22, and the engaging portions 30a, 30 are always provided.
a is urged in the direction of engaging with the click groove 31a. Here, the click groove 31a is used to hold the first puncture member 22 at the retracted position when the first puncture member 22 is at the retracted position, and also clicks to restrict the most protruding position of the second puncture member 23. A groove 31b is provided.

The second puncturing member 23 includes the first puncturing member 2.
The second puncturing member 23 is slidably mounted in the second insertion passage 24 so that when the second puncturing member 23 is pushed out, the second puncturing member 23 projects obliquely forward from an outlet 24 a provided on a side surface of the first puncturing member 22. Become. Here, the second puncturing member 23 is
Inside, the first puncturing member 22 is guided in the axial direction, but is bent at a predetermined angle when moving toward the outlet 24a. When it appears from the outlet 24a,
In order to prevent the tip of the puncture needle portion 22b of the second puncture member 22 from sticking into the inner wall of the insertion passage 24, the inclination angle θ ₁ of the bent wall 24b of the insertion passage 24 is set.
Is the inclination angle θ of the puncture needle portion 23b of the second puncture member 23.
_It is smaller than ₂ and both are arranged so that their inclination directions coincide with each other. Then, the second puncturing member 23
In order to prevent the .P. From rotating in the first puncturing member 22, a detent mechanism as shown in FIG. 7 is formed. That is, a portion on the base end side of the second puncturing member 23 is partially chamfered, and the flange portion 22c of the first puncturing member 22 is restricted to engage with the chamfered portion 32. Part 33 is formed and the second puncturing member 2
Even if a force in the rotation direction is applied to 3, the chamfered portion 32 comes into contact with the regulating portion 33. In addition, the chamfered portion 32 has a predetermined length in the axial direction, so that a step is formed in the second puncturing member 23,
When the second puncturing member 23 is slid and displaced, the step portion comes into contact with the regulating portion 33, whereby the stroke end of retraction and protrusion of the second puncturing member 23 is regulated. . In FIG. 5, reference numeral 34 is attached to the distal end portion of the guide tube 21 and is provided to surround and protect the puncture needle 22b of the first puncture member 22 when the puncture needle 22b is in the retracted position. It is a metal ring.

The present embodiment is configured as described above. In order to use the puncture treatment tool 20, first, the insertion section 2 of the ultrasonic endoscope is inserted into the body, and the distal end hard section is used. 2c
To the site to be examined / diagnosed. The puncture instrument treatment tool 20 is inserted into the puncture treatment instrument insertion passage 11 in advance or when the insertion section 2 is inserted to a predetermined position. here,
The first puncturing member 22 is at a retracted position drawn into the guide tube 21 and is held at that position by the click mechanism, so that the first puncturing member 22 protrudes from the guide tube 21 without permission and performs puncturing. There is no risk of damaging the inner surface of the treatment tool insertion passage 11.

By transmitting an ultrasonic pulse from the ultrasonic transducer 7 in the ultrasonic endoscope to the inside of the body and receiving the reflected echo, information on the body tissue can be obtained. Information is
The image is displayed on the monitor device as an ultrasonic image. And
In performing the ultrasonic observation, when a site such as an affected part where a medical solution needs to be supplied is found, the puncture device 20 is operated to inject the medical solution into the required site.

First, the entire puncture device 20 is made to protrude from the puncture device insertion passage 11 of the ultrasonic endoscope, and the guide tube 21 is brought into contact with the body wall. Thereafter, the finger hangers 27 and 28 are operated to slide and displace the first puncture member 22 in the direction in which the first puncture member 22 is pushed out of the guide tube 21. Thereby, the spring piece 30 provided on the guide tube 21 is provided.
Is elastically deformed, so that the engagement portion 30a becomes the click groove 31a.
The first puncturing member 22 projects from the distal end of the guide tube 21 in the axial direction, and the puncture needle portion 22b of the first puncturing member 22 is inserted into the body. The piercing operation of the puncture needle portion 22b into the body is performed under monitoring by the ultrasonic observation means, so that the puncture needle portion 22b can be safely and surely pierced into the site where the liquid medicine is to be injected.

When the first puncturing member 22 is pierced to a predetermined depth position in the body, the first puncturing member 2
Second puncturing member 23 inserted in the second insertion passage 24
Are displaced so as to push out. As a result, FIG.
As shown in FIG. 2, the second puncturing member 23 is provided with an outlet 24 provided on a side surface of the first puncturing member 22 near the puncture needle portion 22b.
a, the puncture needle 23b of the second puncture member 23 projects into the body in a predetermined angular direction with respect to the axis of the first puncture member 22. In this state,
When the chemical solution supply device 26 is operated to pump the chemical solution into the liquid passage 25 of the second puncture member 23, the medical solution is supplied into the body from the tip of the puncture needle 23b.

Therefore, when piercing the first puncturing member 22 into the body, the first puncturing member 22 does not necessarily have to be pierced directly toward the affected part, and the second puncturing member 23 must be protruded. When the second puncturing member 2 is
What is necessary is that the site where the medicinal solution is to be injected, such as the affected part, is located within the range where 3 reaches. Then, after piercing the first puncture member 22 into the body, the first puncture member 22 is rotated around an axis to thereby draw out the outlet 24.
If the second puncture member 23 is made to protrude with the “a” directed toward the affected part, it reaches the affected part reliably. As a result, an operation such as injection of a drug solution can be performed extremely easily, and a member corresponding to the first puncturing member 22 must be repeatedly inserted a plurality of times, compared with a conventional art in which an affected part cannot be accurately reached. Thus, damage to the patient can be minimized.

In the case where the affected area covers a wide area, after the medicinal solution is once injected, the second puncturing member 23 is moved to the first puncturing member 23.
And the first puncturing member 22 is rotated by a predetermined angle around the axis with respect to the guide tube 21, and in this state, the second puncturing member 23 is again pulled out of the outlet port 24a.
By injecting the liquid medicine while projecting the liquid from the liquid and sequentially repeating this operation, the liquid medicine can be supplied radially around the first puncturing member 22 as shown by the phantom line in FIG. Further, if the same operation is performed while changing the position of the first puncture member 22 in the depth direction, it becomes possible to supply the chemical solution over a wider range.

FIGS. 9 and 10 show a second embodiment of the present invention. The puncture device 40 includes a guide tube 41 having a puncture needle portion 42b at the distal end of a tube portion 42a. The first puncturing member 42 provided is slidably inserted, and the second puncturing member 43 is inserted into the first puncturing member 42.
There is no particular difference from the above-described first embodiment in that an insertion passage 44 through which the puncture needle is inserted is provided, and this insertion passage 44 is open to the side surface near the puncture needle part 42a.

The second puncturing member 43 has no liquid passage therein and is solid. Therefore, the second puncturing member 43 is configured such that a puncturing needle portion 43b is provided at the tip of the flexible shaft portion 43a. Also, the first
The puncture member 42 has a tube portion 42 a and a puncture needle portion 4.
2b is formed by a different member, and both are screw-connected. Further, a metal ring 45 is inserted into the inner surface of the distal end portion of the guide tube 41, and the first puncture member 4
When the second puncture member 2 is in the retracted position, the puncture needle portion 42b of the first puncture member 42 is surrounded. The tube portion 42a of the first puncture member 42 has a larger diameter than the puncture needle portion 42b, and when the first puncture needle member 42 is projected from the guide tube 41, the tip of the tube portion 42a is connected to the metal ring 45. At this position, the amount of projection of the first puncturing member 42 is regulated.

The supply of the chemical in this embodiment is performed not through the inside of the second puncturing member 42 but through the space between the first puncturing member 42 and the second puncturing member 43. For this purpose, a connecting portion 46 is provided at the base end of the first puncturing member 42, and a chemical solution supply device 47 is detachably attached to the connecting portion 46. Therefore, with the first puncturing member 42 inserted into the body, the second puncturing member 43 is further inserted into the body obliquely with respect to the axis of the first puncturing member 42. A flow path for supplying a chemical is formed, and the chemical is injected along the flow path. Along with this, the chemical solution supply device 47
Is supplied into the insertion passage 44 of the first puncture member 42 from the inlet, the chemical solution is sent toward the flow path in the body secured by the second puncture member 43 protruding from the outlet 44a of the insertion passage 44. It is.

In order to inject this chemical solution more smoothly and efficiently, as shown in FIG. 11, the surface of the second puncturing member 43 has at least a length protruding from its outlet 44a. , The liquid supply groove 48 in the axial direction
Is provided. Thereby, the flow path of the chemical solution can be more reliably formed. Moreover, since the portion where the liquid supply groove 48 is formed has improved bending strength,
Puncture into the body can be performed more smoothly. If the supplied chemical is high in viscosity, the second puncturing member 43
By making the surface of the tip portion rough, the second puncturing member 43 can be pierced into the body in a state where a large amount of the drug solution is attached to the surface, and the attached drug solution can be supplied into the body. .

FIG. 12 shows a third embodiment of the present invention. In this embodiment, the puncture device 50 includes a guide tube 51, a first puncture member 52, and a second puncture member 52. Regarding the point constituted by the puncturing member 53,
This is the same as the second embodiment. The first puncturing member 52 has the same structure as the first puncturing member 42 in the second embodiment. That is, the first puncture member 52 is provided such that the puncture needle portion 52b is integrally connected to the distal end of the tube portion 52a, or formed as a separate member and connected. An insertion passage 54 is provided in the tube portion 52a, and the insertion passage 54 is provided on a side surface near the puncture needle portion 52b.
The tube portion 52a
Is provided in the vicinity of the base end. On the other hand, the second puncturing member 53 is the second puncturing member 23 shown in the first embodiment.
The same configuration as described above is used. That is, a puncture needle portion 53b is provided at the tip of a tube portion 53a having a liquid passage 56 formed therein, and the second puncture member 53 is inserted into the insertion passage 54 of the first puncture member 52. It can be inserted and protruded from the outlet 54a. Then, the tube portion 53 of the second puncturing member 53
A connecting portion 57 is provided at the base end of “a”.

As described above, the connecting portions 55 and 57 are provided on both the first puncturing member 52 and the second puncturing member 53, so that one connecting portion, for example, the connection of the first puncturing member 52 is connected. A drug solution supply device 58 is connected to the portion 55, and a suction device 59 for sucking a body fluid can be connected to the other connection portion, that is, the connection portion 57 side of the second puncture member 53. In this state, the first puncturing member 52 is inserted into the body, and the second puncturing member 53 is further projected from the outlet 54a on the side surface of the first puncturing member 52, so that the first puncturing member 52 The medical fluid is supplied into the insertion passage 54 of the puncture member 52 and, at the same time, is sucked from the liquid passage 56 of the second puncture member 53 by the suction device 59, thereby replacing the body fluid with the medical fluid. An efficient supply of a chemical solution can be performed.

[0032]

As described above, according to the present invention, the first puncture member guided by the guide member and stabbed into the body is provided with the second puncture member through the outlet opening at the side surface near the distal end thereof. Injection of chemicals, etc., with the piercing member protruded, minimizes damage in the body, and easily injects chemicals, etc. precisely into required areas over a wide range. It has effects such as being able to do so.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an ultrasonic endoscope to which a puncture treatment tool of the present invention is attached.

FIG. 2 is an external view showing a distal end surface of a distal end hard portion of the ultrasonic endoscope.

FIG. 3 is a side view of a distal end hard portion of the ultrasonic endoscope.

FIG. 4 is an overall configuration diagram of a puncture treatment tool according to the first embodiment of the present invention.

5 is an enlarged sectional view of a distal end portion of the puncture treatment device of FIG.

FIG. 6 is a configuration explanatory view of a click mechanism provided between a guide tube and a first puncture member.

FIG. 7 is an explanatory diagram of a configuration of a rotation preventing mechanism of the second puncturing member in the first puncturing member.

FIG. 8 is an operation explanatory view of the puncture treatment tool.

FIG. 9 is an overall configuration diagram of a puncture treatment tool showing a second embodiment of the present invention.

FIG. 10 is a cross-sectional view of the distal end portion of the puncture treatment device of FIG.

FIG. 11 is an external view of a distal end portion of a second puncturing member.

FIG. 12 is an overall configuration diagram of a puncture treatment tool showing a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body operation part 2 Insertion part 2c Hard tip part 11 Puncturing tool insertion passage 20, 40, 50 Puncture treatment tool 21, 41, 51 Guide tube 22, 42, 52 First puncturing member 22a, 42a, 52a Tube part 22b, 42b, 52b Puncture needle part 23, 43, 53 Second puncture member 23a, 53a Tube part 23b, 43b, 53b Puncture needle part 23d, 46, 55, 57 Connection part 24, 44, 54 Insertion passage 24a, 44a, 54a Outlet port 25, 56 Liquid passage 26, 47, 58 Chemical liquid supply device 43a Flexible shaft portion 59 Suction device

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61M 5/32 A61B 17/34 A61M 31/00

Claims (6)

(57) [Claims] 1. A guide member formed of a tube having an open end, a puncture needle inserted into the body through the guide member, the end of which can be pierced into a body wall, and a passage in an axial direction therein. In the vicinity of the distal end, a first puncturing member having an insertion passage opening as an outlet on the side surface portion thereof, and is inserted into the insertion passage of the first puncturing member,
A puncturing treatment tool comprising: a second puncturing member that projects from the outlet port at a predetermined angle with respect to the axis of the first puncturing member. 2. The puncture treatment device according to claim 1, wherein the guide member and the first and second puncture members are formed of flexible members. 3. The puncture treatment device according to claim 1, wherein the second puncture member is a solid member. 4. The puncture treatment device according to claim 1, wherein the second puncture member has a structure in which a liquid passage opening at a tip end portion is formed. 5. The puncture treatment device according to claim 4, wherein the second puncture member is provided with a connection portion to which a chemical solution supply device or a suction device can be connected in a liquid passage thereof. 6. The device according to claim 1, wherein a connecting portion to which a chemical solution supply device or a suction device can be connected is provided at a base end portion of the first puncturing member. The puncture treatment tool according to any one of the above.