JPS62127030A - Syringe for endoscope - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION 1. Field of Industrial Application] The present invention relates to an endoscopic syringe that is used by being introduced into a body cavity through an endoscope.

[Prior Art] For example, when injecting a medicinal solution directly into an affected area within a body cavity,
It is known to introduce a syringe into a body cavity using an endoscope channel. (Special application 1986-1421
No. 83). As shown in FIG.
An injection tube 32 is inserted into the injection tube 31 so as to be freely advanced and retracted, and a tip needle 33 is attached to the tip of the injection tube 32.
and a regulating member 34 attached to the distal end of the mantle tube 31 to regulate the protrusion of the distal needle 33.

When injecting a medicinal solution such as a hemostatic agent into a bleeding area using this syringe, first push the tip needle 33 into the part made small in diameter by the regulating member 34 and bring it into contact with the injection tube 32, and then insert the tip needle into the bleeding area. Inject a medicinal solution such as a hemostatic agent.

[Problems to be Solved by the Invention] When injecting a medicinal solution using a conventional syringe, it is often difficult to identify the source of bleeding due to the blood that bleeds out. Therefore, the bleeding area has been washed using the water supply capacity of the endoscope, but this method has the disadvantage that it is difficult to wash the bleeding area as desired.

SUMMARY OF THE INVENTION The present invention has been made in view of these problems, and it is an object of the present invention to provide an endoscopic syringe with which a desired bleeding area can be easily washed.

[Means for solving the problem] Is the present invention internal? ! Two liquid feeding caps are provided on the holder of the mirror syringe, one liquid feeding cap is connected to the proximal end of the injection tube,
The other liquid feeding mouthpiece is connected via a liquid feeding pipe to a spout opening that is opened separately from the tip opening of the mantle tube.

[Function] In the present invention, liquid is sent toward the bleeding area from the spout at the tip of the endoscopic syringe to wash it.

[Example] Hereinafter, a first example of the present invention will be described with reference to FIG. In the figure, 1 is a flexible injection tube made of polytetrafluoroethylene resin or the like.

A tubular tip needle 2 is fixedly attached to the tip of the injection tube 1. Then, the injection tube 1 and the tip needle 2 are advanced into the inside of a flexible mantle tube 3 made of synthetic resin.
The tip needle 2 protrudes from the tip opening 3a of the mantle tube 3. A regulating member 4 made of a metal pipe whose inner diameter is smaller than the outer diameter of the mantle tube 3 is fitted onto the outer peripheral surface of the distal end of the mantle tube 3 and fixed with adhesive. The portion of the mantle tube 3 where the regulating member 4 is provided is
The inner diameter is smaller than other parts.

Further, several liquid feeding nozzles 5 as spouting ports are provided on the rear side surface of the regulating member 4 provided at the tip of the mantle tube 3. The liquid feeding nozzle 5 is formed diagonally forward from the inside of the mantle tube 3 to the outside. Further, a notch 6 is provided on the outer periphery of the regulating member 4 in front of the liquid feeding nozzle 5 in the same axial direction as the liquid feeding nozzle 5 .

On the other hand, a cylindrical holder is fixedly attached to the proximal end of the mantle tube 3. A pipe 9 whose one end is connected to the proximal end of the injection tube 1 is inserted into a through hole 8 coaxially formed in the holder 7 . At the base end of this pipe 9 is a connection port 10 for connecting an injection device such as a syringe (not available orally).
A first liquid feeding cap 11 having a diameter is connected and fixed.

Further, a side hole 12 is provided on the side surface of the holder, and opens perpendicularly to the through hole 8. This side hole 12 has a second liquid feeding cap 14 having a connection port 13 for connecting an injection device. are integrally formed. This side hole 12 is connected to the through hole 8.
It communicates with a liquid feeding pipe line 15 inside the mantle tube 3 through the tube, and further communicates with a liquid feeding nozzle 5 at the tip.

A groove 16 is formed in the through hole 8 of the holder 7 rearward of the side hole 12, and an O-ring 17 that presses against the pipe 9 is attached to maintain watertightness. Further, a protrusion 18 is provided on the inner circumferential surface of the base end of the through hole 8 so as to protrude from the outer circumferential surface of the liquid feeding mouthpiece 11 to maintain the pressed state.

Next, the operation based on the above configuration will be explained.

The internal pAyt syringe constructed in this way has a tip needle 2.
With the forceps inserted into the mantle 3, the forceps are passed through a forceps insertion channel (not shown) of the endoscope to protrude into the body cavity, and the distal end is guided to the bleeding site on the inner wall of the body cavity. Then, a syringe filled with a medicinal solution such as a hemostatic agent is connected to the connection port 10 of the first liquid feeding cap 11, and the liquid feeding cap 11 is advanced to cause the tip needle 2 to protrude from the tip opening 3a of the mantle tube 3. let

Furthermore, in order to clarify the source of bleeding, the second liquid feeding mouthpiece 14 is
A syringe filled with a cleaning liquid such as physiological saline is connected to the connection port 13 of the syringe to supply the liquid. Then, the cleaning liquid flows through the side hole 12.
The liquid then passes through the liquid feeding pipe line 15 inside the mantle tube 3 and is ejected from the liquid feeding nozzle 5. At this time, since the liquid feeding nozzle 5 is formed diagonally forward and there is a notch 6 in the regulating member 4, the liquid is ejected to the bleeding area in the front.

In addition, even when the tip needle 2 is retracted into the mantle tube 3, the liquid is fed in the same way, but in this case, the liquid can be fed not only from the liquid feed nozzle 5 but also from the tip of the mantle tube 3. .

As mentioned above, in the first embodiment of the present invention, when carrying out the procedure using an endoscopic device, the bleeding area can be easily washed or removed. The source of bleeding can be identified, puncturing can be performed reliably in the area, and medical solutions such as hemostatic agents can be injected.

Next, FIG. 2 is a diagram showing a second embodiment of the present invention. Incidentally, the same parts as in the first embodiment are given the same reference numerals, and the details are omitted.

In this embodiment, an intermediate tube 20 is provided between the mantle tube 3 and the injection tube 1. A regulating member 4 is adhesively fixed to the distal end of this intermediate tube 20, and the proximal end is connected to a holder.

A liquid feeding nozzle 21, which is a spout, is formed between the distal end of the intermediate tube 20 and the distal opening of the mantle tube 3.

In addition, the proximal end of the mantle tube 3 is connected to the tip of the small Rudaa via a connecting vibe 22, and on the side of this connecting vibe 22,
A side hole 12 is provided.

This side hole 12 communicates with two liquid feeding nozzles 21 via a feeding line 15 between the mantle tube 3 and the intermediate tube 20.

For this reason, the cleaning liquid from the 7i pipe/J pipe connected to the second liquid feeding mouthpiece 14 passes through the feeding pipe passage 15 and reaches the liquid feeding nozzle 21.
The liquid can be sprayed further forward and delivered to the damaged area more accurately.

In addition to the cleaning liquid, a contrast medium may also be injected or used for drug dispersion.

[Effects of the Invention] As described above, the present invention allows the desired bleeding area to be easily washed and the source of bleeding to be identified by sending the washing liquid from the spout of the ε control device for an endoscope. This allows for reliable puncture.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention, FIG. 2 is a sectional view showing a second embodiment, and FIG. 3 is a partial sectional view showing a conventional example. 1: Injection tube, 2: Tip needle, 3: Mantle tube, 5.21
:Liquid feeding nozzle, 7: Holder, 1]゛First liquid feeding cap, 14: Second remittance cap, 15:
Liquid feed pipe y! Permission application

Claims (1)

[Claims] A flexible injection tube, a tip needle attached to the tip of the injection tube, a flexible mantle through which the injection tube is inserted so as to be freely advanced and retractable, and the tip needle protrudes from the tip opening, and the mantle. In an endoscopic syringe consisting of a holder attached to the base of a tube, the holder is provided with two liquid feeding caps, one of which is connected to the proximal end of the injection tube, and the other liquid feeding cap is connected to the proximal end of the injection tube. A syringe for an endoscope, characterized in that it is connected to a spout opening separately from a distal opening of a mantle tube via a liquid supply pipe.