JPS6171038A - Power source apparatus for cauterization probe - 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 [Technical Field of the Invention] The present invention relates to a power supply device for an ablation probe that is used endoscopically to cauterize a bleeding wound to stop bleeding.

[Technical background of the invention and its problems] In recent years, by inserting an elongated insertion section into a body cavity,
BACKGROUND OF THE INVENTION Endoscopes that can perform diagnostic or therapeutic procedures within body cavities without requiring incisions from the body surface are widely used. In addition to the observation means, this endoscope is generally equipped with a hollow channel through which various treatment instruments are inserted, and the operator visually observes the symptoms with the treatment instrument inserted through this channel. Various therapeutic procedures can be performed underneath.

By the way, there are laser treatment devices that irradiate laser beams to coagulate blood when a tumor or the like in a body cavity is removed or as a means to stop bleeding from wounds such as ulcers, but at present, only those skilled in laser beam irradiation, etc. There are problems in that it requires a lot of time and is expensive.

For this reason, a device has been proposed that uses an ablation probe that can be inserted through the channel of an endoscope and energizes a heating coil installed at the tip of the ablation probe to coagulate the bleeding area that is pressed against it. .

However, with this heating coil type device, the responsiveness of the rise in temperature when coagulating blood and the fall of temperature after hemostasis is low, so the time required for coagulation,
Alternatively, there is a problem that the surrounding tissues other than the target site (wound) may be necrotized due to heat conduction to the surrounding tissues during the time until the probe cools down after solidification.

Therefore, Japanese Patent Laid-Open No. 58-69556 discloses a heating and cooling response f! for an ablation probe that can be inserted through the channel of an endoscope. A high-speed heat-generating ablation probe using a good heat-generating element is disclosed. This prior art device has a nozzle in the probe that discharges a lavage fluid that is pumped through a catheter to cleanse blood from the wound and make it easier to see where the bleeding needs to be coagulated.

However, in the prior art, an electric system that supplies electricity to a heating element such as a diode installed in the ablation probe, and an electric system that supplies cleaning liquid to a nozzle formed in the ablation probe are provided.
However, a configuration for separating these on the power supply side is not disclosed. The electrical system and the water channel system must be designed so that even if cleaning fluid leaks during normal operation, the cleaning fluid will not be transmitted to the electrical system, thereby eliminating the risk of an increase in current, short circuit, etc.

[Objective of the Invention 1] The present invention has been made in view of these circumstances, and includes an electrical system that supplies electricity to a heating element installed in an ablation probe, and a cleaning liquid supplied to a nozzle formed in the ablation probe.
Separate the cleaning fluid from the filtration channel system to prevent the leaked fluid from entering the electrical system even if the cleaning fluid leaks in the event of an abnormality.
To ensure safety by eliminating the risk of current increase and short circuits,
Another object of the present invention is to provide a power supply device for an ablation probe that can prevent failure and damage to the device.

Another object of the present invention is to provide a power source for an ablation probe which is designed to improve the power supply for an ablation probe by separately assembling the electric system and the waterway system, and then assembling the two after assembly so as to cover each other. The purpose is to provide a device N.

[Summary of the Invention] In order to achieve the above objects, the present invention provides a power supply device for an ablation probe that connects an electric system that supplies electricity to a heating element of an ablation probe and a water channel system that supplies a cleaning liquid to a nozzle of the probe. It is separated and partitioned into a box using a chassis.

[Embodiments of the invention] Embodiments of the apparatus of the present invention will be described below with reference to the drawings.

Figures 1 to 5 relate to one embodiment of the device of the present invention, in which Figure 1 is a sectional view of the power supply device, Figure 2 is a perspective view showing the overall configuration of the ablation treatment device, and Figure 3 is the □ power supply. FIG. 4 is a partially cutaway rear view of the power supply device, and FIG. 5 is a partially cutaway front view showing the washing water tank.

As shown in FIG. 2, the ablation treatment device 1 includes a power supply device 3 with an operation panel 2 on the front, and is connected to the power supply device 3 through an electrical connector 4 and a water supply connector 5 through an attachment/detachment port. A cable 7 is connected to the ablation probe device 6 and the power supply device 3.
It consists of a foot switch 9 which is detachably attached to a connector 8 provided at the side of the power supply device 3, and a cleaning water tank 10 which is detachably attached to the side of the power supply device 3.

The ablation probe device 6 includes an elongated and flexible sheath 11, an ablation probe 12 connected to the tip of the sheath 11, and the electrical connector 4 and water supply connector provided on the base side of the sheath 11. Consisting of 5 parts, 1 sheath
1 and the ablation probe 12 at its tip can be inserted into a treatment instrument channel of an endoscope (not shown), and the ablation probe 12 is introduced into the body cavity through this channel.

The sheath 11 is inserted into the distal center □ to energize the heating element I installed inside the cautery probe 12 at the distal end, and the coaxial cable inside the sheath 1 in the axial direction is connected to the ablation probe 1.
2. A water supply channel is formed for pressure-feeding cleaning water to a plurality of nozzles formed on the outer periphery.

Then, the electrical connector 4 and the water supply connector 5 on the base side of the ablation probe device 60 are connected to the power supply @3, and the connector 8 of the cable 7 of the n-knot switch 9 is also connected to the power supply 3, and the power supply Turn on the main switch 3a of the device 3, and select and set the heating amount and wash water feed amount setting buttons 2a and 2b provided on the operation panel 2, and then turn the wash water feed side switches 9a of switches 1 to 9. When the pressure is applied, the water pump installed in the power supply device 3 is activated, and the cleaning water in the cleaning water tank 10 is passed through the water supply channel 16 in the sheath 11 to the outer periphery of the cautery probe 12 at the tip. Water is sent from the nozzle toward the affected area in the body cavity to wash away blood, etc. in the affected area, and the heating switch 9b of the foot switch 9
By pressing the side, electricity can be applied to the heating element in the ablation probe 12 at the tip via the coaxial cable in the sheath 11 to heat it to a predetermined temperature.

The power supply equipment 3 is constructed as shown in FIGS. 1, 3, and 4. That is, this power supply device 3 is connected to the box 1
3. An intermediate chassis 1/I is disposed in the plane direction of the lower part of the interior, and is divided into an upper chamber 13a and a lower chamber 13b. An electrical system 15 consisting of a circuit is provided, and a water channel system 16 for pumping cleaning water to the nozzle formed in the ablation probe 12 is provided in the lower chamber 13b.

A board 17.1-lance etc. is assembled to the intermediate chassis 14, and various circuits are arranged and configured on this board 17a. Further, a navy blue hole 18a is formed in the intermediate chassis 14, and this silk fl'? L 18
A pump device 18, which has a water pump, a motor, etc. built into the housing, is installed in the water pipe system 1G.
A water pipe cove 19 supplies wash water from the wash water tank 10 to the pump equipment 18, and the water pump equipment 18 pressurizes and
There is a water cove 20 through which the flushing water is pumped, both of which are connected to the F chamber 13b side of the water pump equipment 1B.

Four parts 21 are formed on the side surface of the box 13 on the lower chamber 131) side, and a wall plate 21E) forming the recess 21
The neck 22 connected the water cove 19 to the
(J is shown. In addition, a water shielding plate 23 with an opening-shaped cross section is installed on the front side of the intermediate shelf V-shield 1/1, and this water shielding plate 23 Upper chamber i3a in box 13
forming a pressurized water outlet chamber 24 separated from the
In this derivation chamber 24, silica water is added from the upper chamber 13t).
Derive 0 and attach the bucove 20 to the bottom front plate 25 (
=J [J is connected to the water supply plug 26.

On the other hand, a bracket 1-27 is attached to the side of the box 13 to the right of the concave portion 21. The tank 10 is detachably suspended.The wash water tank 10 has two outlet ports, and a kill knob 31 is screwed into the two outlet ports via a gasket 30. A water supply tube 32 is connected to the cap 31, and a gasket 33.
Check ball 34. A plug 37 having a check valve 3G made of a coil spring 35 is disposed, and the plug 37
is connected to a connector 22 attached to the recess 21. In addition, the check valve 36 of the plug 37
This prevents the cleaning water in the cleaning water tank 10 from flowing out when the plug 37 is removed from the connector 22, and when connected, the check valve 36 is circuited by the pushing member on the connector 22 side. There is. Further, an air vent 38 is provided in the cap 31.

The electrical system 15 is assembled on the intermediate chassis 14, and the connector 22 of the waterway system 16 is connected to the water supply plug 26.
are each attached to the side of the box 13, and the n water pipes 7
-B19 and Canada! ``The water pump equipment 18 to which the water filter 20 is connected is connected to the silk ft 711 of the intermediate site 1/I.
8a, pipe the water pipe 19 and pressurized water pipe 2o into the lower room 131 and place people in front of it.
1] Nkta 22. Connect to the water supply plug 26 and remove the cover 39 that closes off the water supply plug 26.
It will be done.

In this configuration, the electrical system 15 and the water channel system 16 are separated, so even if cleaning water leaks in an abnormality, this leaked water will not enter the electrical system, and the current will be reduced. increase, show 1 ~ etc. can be prevented from NZ, and it is safe and only one device N
It is possible to prevent the destruction or malfunction of the In addition, the electrical system and waterway system can be separated separately.
Assemble the illumination in two directions. Furthermore, the strength of the box can be increased due to the intermediate chassis design.

In addition, in the above embodiment, the electrical system and the waterway system are arranged in the box #1, and the electrical system and the waterway system are arranged in the box on the right side. The arrangement is as good as A1.

−10= [Effects of the Invention] As explained above, according to the present invention, the electric system supplies electricity to the heating element installed in the ablation probe, and the water channel system supplies cleaning liquid to the nozzle formed in the ablation probe. Even if the cleaning liquid leaks in the event of an abnormality, the leaked liquid will not enter the electrical system, and there will be no risk of current increase or short circuits, making it safe and preventing equipment failure or damage. It has the effect of preventing

[Brief explanation of drawings]

Figures 1 to 5 relate to an embodiment of the device of the present invention, in which Figure 1 is a sectional view of the power supply device, Figure 2 is a perspective view showing the overall configuration of the ablation treatment device, and Figure 3 is the power supply device. FIG. 4 is a partially cutaway rear view of the power supply device, and FIG. 5 is a partially cutaway front view showing a washing water tank. 3... Power supply device 6... Cauterization probe device 1
0...Washing water tank 13...Box 14...
Intermediate chassis 15... Electrical system 16... Waterway system
18... Pump equipment procedure correction j
Shi (voluntary) 1. Indication of thing 1'1 1974
I Revised Application No. 192278 @ 2, Title of the Invention: Power supply device for cauterization 3
111 Min. 5, Correction Order Day Il (
Spontaneous) 6.? +1 positive vs. Z! Details of the invention<'Explanation 7,
Contents of the amendment As shown in the attached document, 1. In the first line of page 7 of the statement, "16 waterways" will be amended to read "1 waterway." 10-

Claims (1)

[Claims] An electrical system that supplies electricity to a heating element installed in the ablation probe at the tip of the elongated sheath and a water channel system that supplies cleaning liquid to the nozzle formed in the ablation probe are separated and partitioned using an intermediate chassis and placed in a box. A power supply device for an ablation probe characterized by a storage arrangement.