JPS62144651A - Drain apparatus 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 Field of Industrial Application 1 The present invention relates to an endoscope discharge device for discharging emasculated loose fabric pieces and the like by alternately performing liquid feeding and suction/draining.

[Prior Art] In recent years, endoscopes, which have an insertion section inserted into a body cavity and are capable of observing, diagnosing, and treating diseased areas, have become widely used.

This endoscope includes a resectoscope that is inserted into the bladder through the urethra and equipped with a resection loop electrode device that can conduct high-frequency current, and is configured to perform treatments such as prostate resection. This resectus is inserted into the bladder through the urethra and can resect the prostate by applying high-frequency current to a loop electrode protruding from the tip of the sheath. accumulates in the bladder.

Therefore, these sections, etc. should be expelled and the inside of the bladder should be washed.
There is an ll' output device.

As a conventional example of the above discharge device, U.S. Patent No. 389226
There is something disclosed in the issue.

In the conventional example, the perfusion fluid collected from the bladder is filtered through a large number of small-pore filters and reused, and a collection tank is provided at the bottom to store the discharged sections and the like.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional device, the filter that filters and covers the collected rinsing liquid is easily clogged, and it is necessary to smoothly and continuously discharge and cover the sections, etc. However, it is not possible to constantly supply and use fresh irrigation fluid, and therefore, in order to completely wash the inside of the bladder, it is necessary to attach and detach the resect sheath several times and replace the irrigation fluid.

In addition, since the above conventional example has a structure that circulates the perfusate, the perfusate becomes cloudy with blood from the resection, and by draining it during the resection, the perfusion fluid becomes cloudy during the resection. The blood that becomes difficult to observe cannot be effectively drained and removed. Further, since the discharge is performed manually, the efficiency of discharge is low, and the discharge speed etc. differs depending on the person performing the discharge, and there is a problem that skill is required to perform the desired discharge operation.

The present invention has been made in consideration of the above-mentioned points, and an object of the present invention is to provide an endoscope discharge device that can efficiently remove sections and the like.

[Means and Effects for Solving the Problems 1] The present invention provides a system in which a liquid feeding tube leading to a clear liquid and a liquid draining tube leading to a draining liquid tank are interposed with a pump in between, and this pump feeds the liquid. By alternately setting pressure and suction pressure, sections are efficiently discharged.

[Example] Hereinafter, the present invention will be explained in detail with reference to the drawings.

1 and 2 relate to a first embodiment of the present invention, FIG. 1 shows the first embodiment, and FIG. 2 shows 1f of the operating state of the pump.
Indicates power status.

As shown in FIG. 1, in the endoscope discharge device 1 of the first embodiment, a perfusion liquid tank 3 in which perfusion liquid 2 is stored is connected to a supply/discharge pump 5 via a liquid supply tube 4. It is connected to the liquid feeding cap 6. A drain tube 8 is connected to the drain mouthpiece 7 of the pump 5, and the other end of the tube 8 is connected to a drain tank 9.

In the liquid feeding mode, the feeding and draining pump 5 is connected to the connecting tube 1.
1 is connected to the common mouthpiece 12, the liquid feeding mouthpiece 6 side is set to a positive pressure state, and the irrigation fluid 2 is transferred to the connecting tube 11.
The liquid can be sent to the side.

In addition, in this pump 5, in the drain mode, the mouthpiece that communicates with the common mouthpiece 12 is on the liquid drainage mouthpiece 7 side, and the common mouthpiece 1
In contrast to 2, the drain cap 7 side is set to a negative pressure state,
The liquid on the connecting tube 11 side can be sucked and drained to the drain tank 9 side.

The connection tube 11 is connected to the connection member 12 at the other end of the connection tube 11 at a detachable portion 1 on the proximal side of the hollow sheath 13.
It is designed so that it can be detachably attached by fitting into the opening of No. 4, for example. The connecting member 12 is provided with a cap that passes through the connecting member 12, and the connecting tube 11 connected to the cap can communicate with the hollow passage of the sheath 13.

The sheath 13 constitutes, for example, a resectoscope, and the sheath 13 is inserted into the bladder 15 through the urethra, and a resect handle and a scope (optical viewing tube) (not shown) are inserted (inside the sheath 13). In this state, by operating the resect handle and protruding the tip of the ablation electrode, this electrode tip is used to ablate the prostate, and by this ablation procedure, the resected section 16.・・・
, 16 accumulates in the bladder 15. Also, bladder 15
Bleeding blood remains inside. These sections 16,
. . , 16, etc. are the feed/discharge pumps 5 forming the first embodiment.
By alternately setting the irrigating liquid to the liquid feeding mode and the liquid draining mode, the perfusion liquid 2 can be efficiently discharged to the liquid draining tank 9. 'For example, as shown in FIG. 2, the pump 5 is set alternately to a liquid feeding mode state where a positive pressure of an appropriate value is applied and a suction/draining mode state where an appropriate value of negative pressure is applied (not shown). (switched using a timer, etc.).

When the pump 5 enters the liquid feeding mode, the perfusion liquid 2 in the perfusion liquid tank 3 passes through the liquid feeding tube 4, through the hollow passage of the sheath 13, and is delivered from the open end of the sheath 13. Section 16 which was accumulated at the bottom of 15.・・・
, 16 are lifted up as shown by arrow A, and the lifted sections 16, . Thus, the aspirated section 16. ..., 16 is the fluid in the bladder and 11+ is discharged into the IJI fluid tank 9.

According to this first embodiment, after the section 16 is lifted up during liquid feeding to make it easy to suction and discharge, the mode is switched to the suction and discharge mode and suction 11 can be discharged, and after this one discharge, the section 16 is again conveyed. Set to oil mode and repeat the same operation.

” - By changing the pressure value of the delivery liquid, the suction pressure ratio of suction and discharge, and the cycle of these, the pressure value when efficient < 111 can be obtained. Find these cycles, etc., and set them to those values. From now on, can efficiently eject sections, etc. without requiring any skill.

FIG. 3 shows a second embodiment of the invention.

The ill device 21 of this second embodiment uses a connected perfusion type sheath 24 that includes a liquid feeding mouthpiece 22 and a liquid drainage mouthpiece 23 . This sheath 24 consists of an inner sheath 24a and an outer sheath 24b.

In this case, the pump 25 is configured so that the irrigating liquid 2 on the liquid feeding duplex 4 side connected to the liquid feeding outlet side cap 27 is connected to the liquid feeding outlet side cap 26.
A liquid feeding tube 28 connected to this mouthpiece 27
The liquid can be delivered through the hollow passage of the inner sheath 24a. In addition, this pump 25 is configured to drain liquid from a drain tube 32, one end of which is connected to a drain inlet mouthpiece 31, and a drain tube 8, the other end of which is connected to a drain tank (not shown), which is connected to +Jl liquid. It is possible to eject into the ejection side B metal nozzle.

The other end of the drain tube 32 is connected to the drain cap 23 of the outer sheath 24b, and the drain tube 32 communicates with the hollow passage of the outer sheath 24b.

The rest of the structure is the same as that of the first embodiment.

According to this second embodiment, by setting the pump 25 to the liquid feeding mode, the irrigation fluid 2 in the irrigation fluid tank 3 can be delivered from the open tip of the inner sheath 24a through the hollow passage of the inner sheath 24a. , the sections inside the bladder 15 can be made to fly up. Following this, the pump 25 is switched to drain mode and the lifted sections are sucked into the hollow channel of the outer sheath 24 and the drain tube 32. Pump 25. The liquid is discharged through the drain tube 8 to the drain tank side.

In addition, in the second embodiment, the pump 25, etc.
It is also possible to operate the pump for feeding the liquid and the pump for covering the IJI liquid in combination.

FIG. 4 shows the application of the second embodiment of the present invention during use with a resectoscope.

In this case, a liquid feeding tube 28 and a liquid draining tube 32 are connected to each cap of a sheath 42 which corresponds to the sheath 24 of the second embodiment and forms a resectoscope 41.

The resectoscope 41 includes a sheath 42, a resect handle 71I3 that can be detachably attached from the rear of the detachable part 712a of the sheath 42, and
3 and a scope 44 that can be detachably attached from the rear of the scope 3.

By moving the slider 45 back and forth, the resection handle 43 can move the resection electrode 46 whose rear end is attached to the slider 45 back and forth. By moving this slider 45 forward, the tip of the electrode 46 can be projected from the open tip of the sheath 42, and by turning on the energization switch of a high frequency power supply (not shown), the electrode 46 can be pressed against the electrode 46. Parts can be removed.

When this resection is performed, it is performed under observation using the scope 44, but if the bleeding obstructs the observation, the discharge device 21 of the second embodiment is activated to perfuse the perfusion fluid and remove the blood. can be discharged. Therefore, excision treatment can be performed under good observation. In addition, if there is a section that has been excised, it will be discharged along with blood. Therefore, it can be removed in a shorter time than when a new section is removed after the excision procedure, and the pain caused to the patient can be significantly reduced.

Further, according to the present invention, it can be used even when the hollow passage for liquid feeding and discharging of the sheath is common.

For example, the pump 5 shown in FIG. 1 that only performs suction may be used, and the liquid feeding pressure may be obtained at the height of the support base that supports the perfusion liquid tank 3.

[Effects of the Invention] As described above, according to the present invention, the operation of delivering perfusion fluid and the operation of suctioning and discharging tissue fragments, etc. in the body cavity into which the sheath has been inserted are performed alternately. Therefore, the discharging operation can be completed in a short time by lifting up the sections during the liquid feeding operation and suctioning and discharging the lifted sections.

In addition, it can be efficiently discharged without requiring any skill, and it can also be operated during an excision procedure.

[Brief explanation of drawings]

1 and 2 relate to the first embodiment of the present invention, FIG. 1 is a configuration diagram showing the configuration of the first embodiment, FIG. 2 is an explanatory diagram showing the operation mode of the pump, and FIG. FIG. 4 is a block diagram showing the second embodiment of the present invention, and FIG. 4 is a dimensional block diagram showing another example of the usage state of the second embodiment. 1... Discharge device 3... Perfusate tank 4...
・Liquid feeding tube 5...Pump 8...Drainage tube 9...Drainage tank 11...Connection tube 1
2... Connection member 13... Sheath 15...
Bladder 16... section

Claims (1)

[Claims] In an endoscope discharge device that discharges and removes resected tissue fragments, blood, etc. from a body cavity through a hollow sheath, it is connected through a tube that communicates with the hollow passage of the sheath, and in the pressure feeding mode, irrigation fluid is supplied to the tube side. It has a pump that can send the liquid at an appropriate pressure, and in the suction pressure mode, it can suck and discharge on the discharge side, and this pump is alternately switched between the pressure feeding mode and the suction pressure mode to draw the liquid into the body cavity into which the sheath has been inserted. A discharge device for an endoscope, characterized in that a means for discharging tissue pieces, etc. is formed.