JPS61141353A - Cauterization hemostatic apparatus - 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 [Industrial Application Field] The present invention relates to a cautery device which is used endoscopically to cauterize a bleeding wound to stop bleeding.

[Conventional technology]

In recent years, by inserting an elongated insertion section into the body cavity,
BACKGROUND OF THE INVENTION Internal surgery is widely used because it allows diagnosis or treatment within a body cavity without requiring an incision from the body surface. In addition to viewing means, this endoscope is generally equipped with a hollow channel through which various treatment instruments are inserted. Various therapeutic procedures can be performed under the visual observation of a person.

By the way, there is a laser treatment Kff in which a laser beam is irradiated to replace blood as a means to stop the bleeding of a wound such as an ulcer or the like after the removal of a tumor or the like in a body cavity.
At present, there are problems in that laser beam irradiation requires skill and cost is high.

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,
There is a problem in that during the time when the probe cools down after solidification, the surrounding tissue other than the target area (wound) is necrotized due to heat conduction to the surrounding tissue.

Therefore, Japanese Unexamined Patent Publication No. 58-69556 discloses a high-speed heat-generating ablation probe that can be inserted into the channel of an endoscope and uses a heat-generating element with good heating and cooling response. There is. This prior art device is
The probe is equipped with a nozzle and has the function of discharging a cleaning fluid that is pumped through the catheter to clean blood from the wound and make it easier to find bleeding sites that require coagulation.

Furthermore, Japanese Patent Application No. 192278/1978 relates to a power supply device for an ablation probe, including a water supply channel and a pump.

This invention is a water supply system consisting of a water tank and the like.

[Problem that the invention seeks to solve]

In the above-mentioned device, the water supply operation is performed by stepping on the foot switch, but at this time, the water supply channel between the water tank and the tank 1 is not filled with water, and the water supply channel from the water tank to the tank 10 is filled with water. It took a while for water to reach the tip. Therefore, there was a risk that hemostasis treatment in an emergency would be delayed.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a cautery and hemostasis device that can immediately supply water from the tip of a probe after water supply and sweeping.

[Means for solving problems]

The present invention, as shown in FIG.
A cleaning water tank 102 is connected to a water supply channel 101, and a connection detection means 103 is provided at the connection portion. The connection detection means 103 is connected to the 1□ control means 104, and the control means 104 is connected to the pump 105.

[For production]

When the connection detection device 103 detects that the cleaning water tank 102 is connected to the cautery hemostasis device 100, the connection detection device f
A signal from 103 is input to control means 104 . The control means 104 then drives the pump 105 and stops the pump 105 after a certain period of time has elapsed.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings. Figures 2 to 4 relate to the first embodiment of the present invention, and the second embodiment
The figure is a perspective view showing the overall configuration of the cautery hemostasis device, FIG. 3 is a sectional view taken along line AA of the power supply device, and FIG. 4 is a sectional view of the connection detection section.

As shown in FIG. 2, the cautery hemostasis device 1 includes a power supply device 3 provided with an operation panel 2 on the front, and a cautery probe device W detachably connected to the power supply device 3 through an electrical connector 4 and a water supply connector 5. , 6, a foot switch 9 that is detachably attached to the power supply device 3 with a connector 8 provided on the cable 7, and a cleaning water tank 11 that is detachably attached to the side of the power supply device 3 with a water supply connector 1o. It is configured.

The ablation probe device 6 includes an elongated and flexible sheath 12, an ablation probe 13 connected to the tip of the sheath 12, and the electrical connector 4 and water supply connector 5 provided on the base side of the sheath 12. The sheath 12 and the ablation probe 13 at its tip can be inserted into a treatment instrument channel of an endoscope (not shown), and the ablation probe 13 is introduced into the body cavity through this channel.

A coaxial cable is inserted into the sheath 12 at the center in the axial direction to energize a heating element installed inside the ablation probe 13 at the tip, and a coaxial cable is inserted into the sheath 12 in the axial direction around the outer circumference of the coaxial cable. A liquid passage is formed for pumping cleaning water to a plurality of nozzles formed on the outer periphery of the ablation probe 13.

Then, the electric connector 4 and water supply connector 5 on the base side of this ablation probe device 6 are connected to the power supply device 3, and the giant foot switch 9 is also connected to the power supply device 3 with the connector 8 of its cable 7, and the power supply device At the same time as turning on the main switch 3a of No. 3, and selecting and setting the heating amount and cleaning water supply amount setting buttons 2a and 2b provided on the operation panel 2, press the cleaning water supply side switch 9a of the foot switch 9. As a result, the water pump installed in the power supply device 3 is activated to send the cleaning water in the cleaning water tank 11 through the liquid passage in the sheath 12 from the nozzle on the outer periphery of the ablation probe 13 at the tip toward the affected area in the body cavity. By washing away blood, etc. from the nuclear affected area or by pressing the heating switch 9b side of the foot switch 9, electricity is applied to the heating element in the ablation probe 13 at the tip via the coaxial cable in the sheath 12, so that it can be heated to a predetermined temperature. It has become.

The power supply device 3 is constructed as shown in FIG.

That is, this power supply device 3 is provided with an electrical system consisting of various circuits for supplying electricity to the heating element disposed inside the ablation probe 13 in the upper part, and a cleaning nozzle formed in the ablation probe 13 in the lower part 14. A water supply channel 16 for pumping water is provided.

The water supply channel 16 is supplied with cleaning water from the cleaning water tank 11 to a pump device 1 having a water pump, motor, etc. built into the housing.
8, and a pressurized water tube 20 through which wash water pressurized and pumped by the pump device 18 passes. A recess 2 is formed on the side surface of the lower part 14 of the power supply unit.
1 is formed, and a wall plate 21a forming the recess 21
A water supply connector 10 having a connection detection section 22 connected to the water tube 19 is attached to the water supply connector 10.The pressurized water tube 20 is connected from the pump device 18 to a water supply plug 26 attached to the front of the power supply device 3. On the other hand,
A bracket 2 is attached to the side surface of the power supply device 3 having the recess 21.
7 is attached to the bracket 27, and a hook 28 for the wash water tank 11 is hung on this bracket 27 so that the wash water tank 11 is detachably suspended.

A check valve 29 is attached to the pump device 18 side of the water tube 19 and the pressurized water tube 201, respectively, to prevent backflow to the wash water tank 11. or,
A pressure sensor 30 and a flow rate sensor 31 are provided on the water supply glove 26 side of the pressurized water tube 20, and a power supply device 3
It is electrically connected to a control circuit 32 provided therein that drives the pump device 18 for a certain period of time. Furthermore, this control circuit 32 connects the connection detection section 22. with a detection circuit 33 in between.
Alternatively, it is electrically connected to the pump device 18.

FIG. 4 shows the connection detection section 22, and the connection detection section 22 is located inside the power supply device 3 of the water supply connector 10 provided on the wall plate 21a. The structure of this connection detection section 22 is as follows.
Contacts 37a and 3 are connected with an insulating member 36 between them, facing the hole 35 into which the conductive plug 34 of the cleaning water tank 11 is inserted.
7b is provided. And contacts 37a, 37b
is electrically connected to the detection circuit 33.

Next, the effects of the above configuration will be described.

In order to perform treatment using the cautery hemostatic device 1, the plug 34 of the wash water tank 11 is inserted into the hole 35 of the water supply connector 10. Then, the contacts 37a and 37b facing the hole 35 are electrically connected by the conductive plug 34, and a signal is input to the detection circuit 33. Then, in response to the signal from the detection circuit 33, the control circuit 32 issues a signal to drive the pump device 18 for a certain period of time.

When the pump device 18 is activated and the wash water flows from the wash water tank 11 through the water supply channel 16 and reaches this side of the water supply plug 26, the pump device 18 is stopped. At this time, the fixed time is the time required for the cleaning water to reach from the water supply connector 10 to the front of the water supply plug 26, and may be set arbitrarily.

Then, by pressing the tip 9), water can be delivered from the nozzle of the ablation probe 13 to the affected area within the body cavity.

In addition, when the pressure in the water supply channel 16 exceeds a certain level, the pressure sensor 30 sends a signal to the control circuit 32, and the pump device 1
8 and sends a warning. Also,
The flow rate sensor 31 is provided on the water supply plug 26 side,
If the cleaning water reaches the flow rate sensor 31 before a certain period of time, the control circuit 32 stops the operation of the pump device 18.

As described above, the connection detection unit 22 is connected to the water supply connector 10.
is installed to detect that the plug 34 of the wash water tank 11 is inserted, and drive the pump device 18 for a certain period of time to fill the water supply plug 26 with clean water, and when the foot switch 9 is pressed, Water can be immediately delivered from the nozzle of the cautery probe 13 to the affected area within the body cavity. Furthermore, the operation of the pump device 18 can be checked in advance before performing the treatment.

Note that similar actions and effects can be obtained even if a photoreflector is used as the connection detection section to optically detect that the plug is inserted into the water supply connector.

Next, FIG. 5 is a sectional view showing the second embodiment.

Also, the same parts as in the first embodiment are given the same reference numerals,
Details are omitted. In the second embodiment, a piezoelectric rubber 39 is used as the connection detection section 38.

This piezoelectric comb 39 is provided at the bottom of the hole 35, and there are lead wires 40 connected to the detection circuit 33 from both sides thereof.

Then, when the plug 34 of the cleaning water tank 11 is inserted,
By compressing the piezoelectric rubber 39 and making it conductive, a signal can be sent from the detection circuit 33 to the control circuit 32. Further, the pressure rubber 39 also serves as a watertight seal.

Alternatively, the flow rate sensor 31 may detect that the water supply plug 26 is filled with cleaning water, and this may be displayed on the operation panel 2.

〔Effect of the invention〕

By providing a connection detection means for detecting connection of the wash water tank and a control means for driving the pump for a certain period of time using the output thereof, water can be supplied from the tip of the probe immediately after the water supply operation.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the present invention, FIG. 2 is a perspective view showing the overall configuration of the cautery hemostasis device, and FIG. 3 is a diagram showing the A-A of the power supply device.
FIG. 4 is a cross-sectional view of the connection detection section of the first embodiment, and FIG. 5 is a cross-sectional view of the connection detection section of the second embodiment.
TIE u T , F) 6.jl: Cautery hemostasis device, 3: Power supply device, 6: Cautery probe device, 10:
Water supply connector, 11: Washing water tank, 16; Water supply channel, 1
8: pump device, 22: connection detection section, 31: flow rate sensor, 32: control circuit, 38: connection detection section.

Claims (2)

[Claims] (1) An ablation probe with a nozzle formed at the tip of an elongated sheath that can be inserted into an endoscope treatment instrument channel, etc. is provided,
A heating element is disposed within the probe, and the tip surface of the probe serves as a heat transfer section, while a liquid passage is provided within the sheath from the base side to the nozzle, and a water supply means having a water supply channel communicating with the liquid passage. and a liquid supply section connected to the water supply means, a connection detection means for detecting a connection between the liquid supply section and the water supply channel, and a water supply means based on a signal from the connection detection means. A cautery hemostasis device characterized by comprising a control means for driving the device for a certain period of time. (2) The cautery and hemostasis device according to claim 1, characterized in that a flow rate detection means is provided in the water supply channel, and a control means is provided for stopping the driving of the water supply means in response to a signal from the flow rate detection means. .