JPH114885A - Puncturing implement for excluding ascites, etc. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easy-to-use, sanitary puncturing implement for excluding ascites, etc. SOLUTION: This implement includes a hollow outer cylinder 1 having a tapered end and provided with a plurality of peripheral surface holes 10 in its peripheral surface near its end; a T-pipe 2 having a three-way active plug 6 mounted at the first end of the outer cylinder; a hollow inner needle being longer than the outer cylinder 1, having a pointed end that projects from an opening 11 at the end of the outer cylinder 1, and allowed to be freely drawn in and out via the T-pipe 2 as it makes intimate contact with the inside of the outer cylinder 1, with the end of a syringe capable of being inserted into an opening at the first end of the hollow inner needle; and a waste liquid pipe 5 having one end freely removably communicated and connected to the T-pipe 2, and formed to enable ascites to be discharged from the other end, with a locking fin 9 mounted on a portion of the pipe 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a puncture device for removing ascites and the like used for removing ascites and pleural effusion.

[0002]

2. Description of the Related Art Conventionally, there has been no dedicated tool for removing ascites, and the present applicant has devised a puncture tool for removing ascites disclosed in Japanese Utility Model Publication No. 1-111244.

[0003] This is a hollow outer cylinder which is formed in a long cylindrical shape having an outer shape of about 2 mm and has a tapered distal end and a plurality of peripheral holes formed in a peripheral surface near the distal end. A T-shaped tube having a distal end opening communicating with the proximal end of the outer cylinder, a proximal end opening and a side opening communicating with the distal end opening,
An inner needle which is longer than the outer cylinder and which has a sharpened distal end projecting from the distal end opening of the outer cylinder, and which is closely inserted into and removable from the outer cylinder; Attached to the end, with the inner needle inserted through the outer cylinder, detachable to the base end opening of the T-tube, and detachable to the handle fitted in close contact with the concave head of the handle And a plug that can be fitted in close contact with the base end opening of the T-tube instead of the same handle, and one end connected to the side opening of the T-tube. And a waste liquid pipe formed to discharge ascites from the end.

[0004]

However, the above-mentioned puncture device for removing ascites and the like (hereinafter referred to as a puncture device) still has the following problems.

[0005] That is, the puncture device can surely remove ascites or the like, but after removing the inner needle from the outer tube, the puncture device is inserted into the proximal end opening of the T-tube at the proximal end of the inner needle. There remains a problem in operability such that the attached plug must be fitted into the base opening of the T-tube.

Further, in order to prevent the waste liquid pipe from detaching from the abdominal wall or chest wall, the pipe has been fixed directly to the vicinity of the affected part with a long adhesive tape. If pasted, the pipe might be twisted, and lacked stable fixing properties.

Furthermore, when an anesthetic is applied to the puncture site before ascites is eliminated, an anesthetic injection must be separately applied, and the pain of puncturing the needle is doubled for the patient.

An object of the present invention is to provide a puncture device for eliminating ascites and the like which can solve the above-mentioned problems.

[0009]

Therefore, in order to solve the above-mentioned problems, in the present invention according to the first aspect, a long cylindrical shape having an outer diameter of about 1.4 mm and a tip portion are formed to have a tapered shape. A hollow outer cylinder having a plurality of peripheral holes formed in a peripheral surface near the distal end, a distal opening communicating with the base end of the outer cylinder, and a flow path through the distal opening and the three-way cock. A T-tube having a proximal opening and a side opening that are switchably connected,
A distal end portion that is longer than the outer cylinder and protrudes from a distal end opening of the outer cylinder is formed in a sharp shape, and is closely inserted into the outer cylinder so that it can be inserted and removed through the T-tube. A hollow inner needle formed so that the tip of the syringe can be inserted into the end opening,
A plug body detachably fitted to the proximal opening of the inner needle and the proximal opening of the T-tube, one end of which is detachably connected to the side opening of the T-tube, and And a waste liquid pipe to which a fixing fin is attached in the middle.

The present invention according to claim 2 is characterized in that the outer cylinder and the T-tube are made of synthetic resin.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A puncture device for removing ascites etc. (hereinafter referred to as a puncture device) according to the present invention is formed in a long cylindrical shape having an outer diameter of about 1.4 mm, and has a tapered tip portion. A hollow outer cylinder provided with a plurality of peripheral holes on the peripheral surface near the tip,
A T-shaped tube having a distal end opening communicating with the proximal end of the outer cylinder, a proximal end opening and a side opening communicating with the distal end opening via a three-way cock so as to be capable of switching a flow path; The distal end portion is longer than the cylinder and projects from the distal end opening of the outer cylinder to have a sharpened shape, and is tightly inserted into and detachable from the outer cylinder through the T-shaped tube. An inner needle formed so that the distal end of the syringe can be inserted into the inner end of the syringe, a plug body detachably fitted to a proximal opening of the inner needle and a proximal opening of the T-tube, and a side surface of the T-tube. One end is detachably connected to the opening, and the other end is provided with a waste liquid pipe formed so that ascites can be discharged from the other end, and a fixing fin is attached in the middle.

That is, in order to eliminate ascites using the puncture device, first, the inner needle is inserted closely into the outer cylinder through the T-shaped tube, and as if the inner needle and the outer cylinder were Immediately after piercing the abdominal wall in the state of a book needle until the plurality of peripheral holes drilled in the peripheral surface of the distal end of the outer cylinder reach the ascites reservoir in the abdominal cavity, the inner needle is connected to the outer cylinder and the T-tube. Completely, and the fixing fin provided on the waste liquid pipe is fixed to the vicinity of the affected part with adhesive tape or the like.

At this time, since the inner needle is also hollow,
Simultaneously with the puncture, the ascites waste liquid can be confirmed from one end of the inner needle, and it is possible to immediately confirm that the punctured portion is appropriate.

Next, the cock of the three-way cock provided on the T-tube is switched to close the base end opening of the T-tube, and the waste pipe is attached to the T-tube to open the side opening.
Ascites discharge channel is formed by T-shaped pipe → waste liquid pipe,
Ascites flows from the distal end opening and the peripheral hole of the hollow outer cylinder due to the abdominal pressure, and smoothly flows out of the abdominal cavity through the ascites discharge channel.

As described above, since the outer cylinder has an outer diameter of about 1.4 mm and has a tapered tip, the outer cylinder and the inner needle having a sharp tip are integrated. It is easy to pierce the abdominal wall. In addition, it is possible to easily perform the treatment of the puncture trace after removing the outer cylinder after completing the ascites removal.

Since the outer cylinder and the T-tube are made of a synthetic resin, the outer cylinder has flexibility, so that there is no risk of damaging the organs in the abdominal cavity.

After the inner and outer cylinders are pierced into the abdominal cavity, ascites can be easily removed by simply removing the inner needle and operating the cock of the three-way cock.

In addition, since a plurality of peripheral holes are formed near the distal end of the outer cylinder, even if a part of the peripheral hole or the opening of the distal end of the outer cylinder is blocked by some impurities in ascites, it does not hinder ascites removal. Never.

Further, for example, when a local anesthetic is used before the ascites is eliminated, when the inner needle and the outer cylinder are pierced into the skin, a plug is fitted to the base opening of the hollow inner needle. The tip of the syringe for anesthesia is fitted, and an anesthetic can be used directly through the inner needle of the puncture device.

After the ascites is removed, the inner needle may be withdrawn from the outer cylinder, the syringe may be fitted into the proximal opening of the T-tube, and the necessary drug solution may be injected through the outer cylinder. In this case, since a plurality of peripheral holes are formed in the vicinity of the distal end of the outer cylinder, it is possible to inject the chemical solution over a wide range.

Therefore, the patient only needs to feel the pain of piercing the needle only once when piercing the puncture device, so that the burden on the patient is reduced. Moreover, the operability is extremely good.

Further, the outer cylinder and the T-tube can be manufactured at a low cost by using synthetic resin, and the disposable puncture device is completely disposable, so that there is no risk of infection during the treatment.

As described above, the puncture device according to the present invention is easy to handle, and has the effect of smoothly removing ascites and the like without damaging the patient's body or abdominal cavity by such a simple operation. As well as eliminating ascites and pleural effusion, etc., it is easy to directly use anesthetics and inject necessary drug solutions, etc.
And it becomes a sanitary medical device.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings.

FIGS. 1 and 2 show a puncture device (hereinafter referred to as a puncture device) A for removing ascites and the like according to the present embodiment. FIG. 3 is a longitudinal sectional view of a puncture device main body A1, and FIG. FIG. 2 shows an enlarged perspective view of a tip portion of a main body A1.

The puncture device A is inserted through the hollow outer cylinder 1, the T-tube 2 communicatively connected to the base end of the outer cylinder 1, and the T-tube 2 so as to be in close contact with the outer cylinder 1. A puncture device comprising a hollow inner needle 3 which can be inserted and removed, and a plug 4 which can be removably fitted to a proximal opening 30 of the inner needle 3 and a proximal opening 21 of the T-tube 2. It comprises a main body A1 and a waste liquid pipe 5 having one end connected to a side opening 22 of the T-shaped tube 2 to form an ascites discharge passage R.

That is, as shown in FIGS. 1 to 4, the outer cylinder 1 is formed of a synthetic resin into a long cylindrical shape having an outer diameter of about 1.4 mm (about 18 gauge in the medical field).
The tip is formed in a tapered shape, and on the peripheral surface near the tip,
A plurality of peripheral holes 10, 10 are provided in a concentrated manner. 11 is the outer cylinder 1
Reference numeral 12 denotes a tapered surface of a tip portion formed in a tapered shape (FIGS. 3 and 4). Although the illustrated tapered surface 12 has a very thin tip, it does not necessarily have to be as thin as possible. It may be thick.

The T-tube 2 is also made of a synthetic resin, and has a tip opening 20 which is connected to the base end of the outer cylinder 1 and communicates therewith.
The front opening 20 has a base opening 21 and a side opening 22 which communicate with each other via a three-way cock 6 which will be described later. 60 is a cock of the stopcock 6.

The inner needle 3 includes a metal inner needle body 3a,
A handle portion 3b formed in communication with the inner needle main body 3a and forming the proximal end opening 30, and is longer than the outer cylinder 1;
A distal end portion 31 protruding from the distal end opening 11 of the outer cylinder 1 is formed in a sharp shape.

The inner diameters of the proximal opening 30 and the proximal opening 21 of the T-tube 2 are large enough to fit the distal end of the syringe 7 (see FIG. 7) used for, for example, hitting an anesthetic. I'm trying.

The plug 4 has a plug formed at its tip.
40 has the same outer diameter as the syringe 7, and the handle
The base opening 30 formed in 3b and the base opening 21 of the T-tube 2 can be detachably fitted.

The waste liquid pipe 5 forming the ascites discharge passage R is made of a flexible synthetic resin generally used in a drip set or the like. One end is connected to 22 so that ascites and the like can be discharged, and the waste liquid storage bag 8 is attached to the other end so that the discharged ascites and the like can be stored.

A fixing fin 9 is mounted in the middle of the waste liquid pipe 5 so that the waste pipe 5 can be fixed in a stable state without being twisted near the affected part by the fixing fin 9. In FIG. 1, reference numeral 51 denotes a discharge port for waste liquid for inspection provided in the middle of the waste liquid pipe 5, and 52 denotes a flow control valve (lead hood) similar to that provided in a general drip set or the like.

The three-way cock 6 is provided with a cock 60 connected to a valve body 61 having a T-shaped communication passage therein. As shown in FIGS. 5 (a) and 5 (b), Can be switched.

That is, in FIG. 5A, the distal opening 20 and the proximal opening 21 of the T-tube 2 communicate with each other to form a communication path, and the inner needle 3 can be inserted therethrough. (See FIG. 3).

In FIG. 5B, the leading end opening 20 and the side opening 22 of the T-tube 2 communicate with each other to form a communication passage (FIG. 3).
At this time, ascites can be drained to the waste liquid pipe 5 side and eliminated.

Here, the case where the puncture device A according to the present embodiment is actually used will be described with reference to FIGS.

As shown in FIG. 1 and FIGS. 3 to 5A, the outer cylinder 1 and the inner needle 3 are pierced into the abdominal wall in a state of a double needle. At this time, if the waste liquid pipe 5 is removed, the puncture device A can be easily handled.

In puncturing, the tip of the inner needle 3 is sharp, the outer cylinder of the outer cylinder 1 is about 1.4 mm, and the tip is tapered with a tapered surface 12 formed. It is easy to penetrate the abdominal wall.

Then, the puncture is performed until the peripheral hole 10 of the outer cylinder 1 reaches the ascites reservoir in the abdominal cavity, the stopper 4 is removed, and the T-shaped tube 2 is removed.
The three-way cock 6 is communicated with the proximal opening 30 of the inner needle 3, and after confirming the ascites waste liquid from the proximal opening 30, the handle 3b is gripped, the inner needle 3 is pulled out, and the three-way cock 6 is further closed. Then, the waste liquid pipe 5 is communicated and connected, and then the three-way cock 6 is connected to the waste liquid pipe 5 side, that is, the tip opening 20 and the side opening 22 of the T-shaped tube 2 (see FIG. 5B).

At this time, since the peripheral holes 10 of the outer cylinder 1 are provided in a concentrated manner, there is no need to penetrate unnecessarily deeply. There is no risk of damage.

Then, as shown in FIG.
Adhesive tape 9 near the piercing point a in the abdomen
Fix at 90 mag.

In order to maintain hygiene in the communication passage of the T-tube 2, the plug 4 removed from the base opening 30 of the handle 3b of the inner needle 3 is removed from the base opening of the T-tube 2. The part 21 is fitted and closed (FIG. 6), and the ascites is eliminated while adjusting the flow rate of the ascites flowing out by the flow rate control valve 52 described above. As described above, if the present puncture device A is used, safe treatment can be performed without the abdominal pressure dropping sharply as compared with the conventional waste liquid injection or the like. In addition, the test ascites can be collected from the outlet 51 as needed.

When the waste liquid treatment is completed, the flow control valve 52 is closed and the outer cylinder 1 may be withdrawn from the abdominal cavity.

The puncture device A according to this embodiment can be used not only for removing ascites but also for removing pleural effusion, for example.

The puncture device A according to the present embodiment can use an anesthetic or inject other chemicals into the body before the ascites or pleural effusion is removed.

That is, for example, when injecting a drug solution, as shown in FIG. 7, the puncture device A is pierced into the abdomen, chest, etc. as described above, the inner needle 3 is pulled out, and the cock 60 of the three-way cock 6 is turned off. Operate to close the distal opening 20 of the T-tube 2, insert the distal end of the syringe 7 into the proximal opening 21 of the T-tube 2, operate the three-way cock 6 again to open the distal opening 20. Then, the desired drug solution is injected into the body B by the syringe 7. In this case, since the peripheral surface hole 10 is provided at the distal end portion of the outer cylinder 1, there is an advantage that the chemical solution is easily spread over a wide range.

The puncture portion is pierced in a state like a double needle of the outer cylinder 1 and the inner needle 3 and fitted into the base end opening 30 of the handle 3b of the inner needle 3 without removing the inner needle 3. The plug 4 that has been fitted is withdrawn, and the distal end of the syringe 7 is directly fitted into the proximal end opening 30 to be used as an anesthetic or the like.

As described above, in this embodiment,
It is extremely easy to use, has a simple structure, can be supplied at low cost, and is disposable.

[0050]

The present invention is embodied in the above-described embodiment, and has the following effects.

According to the first aspect of the present invention, the outer diameter is 1.4 mm.
A hollow outer cylinder having a long cylindrical shape with a tapered distal end and a plurality of peripheral holes formed in the peripheral surface near the distal end, and a communication connection with the base end of the outer cylinder A T-shaped pipe having a base opening and a side opening that communicate with each other in a manner that allows the flow path to be switched through the front opening and the three-way cock.
The distal end, which is longer than the outer cylinder and protrudes from the distal end opening of the outer cylinder, is formed in a sharp shape, and is tightly inserted into and detachable from the outer cylinder through the T-tube. A hollow inner needle formed so that the distal end of the syringe can be inserted into the end opening, a stopper body detachably fitted to the proximal opening of the inner needle and the proximal opening of the T-tube, One end is detachably connected to the side opening of the T-shaped pipe, and the other end is formed so that ascites can be drained from the other end. Ascites removal can be easily performed only by a simple operation of operating the cock of the stopcock.

Also, for example, when it is necessary to use an anesthetic or the like before the ascites is eliminated, there is no need to separately inject.
Using the puncture device, the distal end of the syringe is fitted to the proximal opening of the inner needle when the inner and outer cylinders are inserted, and to the proximal opening of the T-tube when the inner needle is removed from the outer cylinder. Then, the drug solution can be injected into the body as needed.

According to the present invention described in claims 2 and 3,
By making the outer cylinder and the T-shaped tube made of synthetic resin, in addition to the above effects, the weight can be reduced,
It can be manufactured at low cost, can be supplied as a disposable puncture device, and is hygienic.

As described above, the puncture device for removing ascites and the like according to the present invention can smoothly remove ascites and the like by a simple operation without damaging organs and the like in the abdominal cavity of the patient. Since it is possible to easily use an anesthetic or inject a drug solution as well as to remove ascites or the like by using it, it can be advantageously used as a unique tool for eliminating ascites or the like.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating an overall configuration of a puncture device according to the present embodiment.

FIG. 2 is an exploded explanatory view of the puncture device.

FIG. 3 is a cross-sectional view of the puncture device main body.

FIG. 4 is an enlarged perspective view of a distal end portion of the puncture device main body.

FIG. 5 is an explanatory view showing a communication path switching state by a three-way cock.

FIG. 6 is an explanatory diagram showing a use state of the puncture device.

FIG. 7 is an explanatory diagram showing an example of a use state of the puncture device.

[Explanation of symbols]

 A puncture device for removing ascites etc. A1 puncture device body 1 outer cylinder 2 T-tube 3 inner needle 4 stopper 5 waste liquid pipe 6 three-way cock 7 syringe 9 fin body for fixing 10 peripheral hole 11 tip opening 20 tip opening 21 base end Opening 22 Side opening 30 Base opening

Claims (2)

[Claims] 1. A hollow outer tube having a long cylindrical shape with an outer diameter of about 1.4 mm, a tip portion formed into a tapered shape, and a plurality of peripheral surface holes (10) provided in a peripheral surface near the tip portion. A pipe (1), a tip opening (20) that is in communication with the base end of the outer cylinder (1), and a flow-switchable communication through the tip opening (20) and the three-way cock (6). A T-shaped tube (2) having a base end opening (21) and a side opening (22); a tip opening (11) of the outer cylinder (1) longer than the outer cylinder (1) and
The distal end projecting from the outer tube (1) is formed in a sharpened shape, and can be inserted and removed through the T-tube (2) in close contact with the outer cylinder (1). 7) into the hollow inner needle (3) formed so that the distal end thereof can be inserted, and the proximal opening (30) of the inner needle (3) and the proximal opening (20) of the T-tube (2). A plug (4) which can be detachably fitted, and one end is detachably connected to the side opening (22) of the T-tube (2), and the ascites can be discharged from the other end. Waste pipe (5) with fixing fins (9) attached halfway
And a puncture device for removing ascites or the like. 2. The puncture device according to claim 1, wherein said outer tube (1) and said T-tube (2) are made of synthetic resin.