JPS61141352A - 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 [Field of Industrial Application] The present invention relates to a cautery nu device that is used endoscopically to cauterize a bleeding wound to stop bleeding.

(Prior art) 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 tools are pushed through, and the operator can visually observe the treatment tools inserted through this channel according to the symptoms in the body cavity. 5 so that various therapeutic treatments can be performed under observation.

By the way, tumors in two body cavities were removed. Alternatively, there are laser treatment devices that irradiate laser beams to coagulate blood as a means to stop bleeding in wounds such as ulcers, but currently there are problems in that laser beam irradiation requires skill and is expensive.

For this reason, a device has been proposed that uses a cautery probe that can be inserted through the channel of an endoscope and energizes a heating coil installed in the chain at the distal end of the cautery probe, thereby coagulating the pressed bleeding area. .

However, with this heating coil type device.

Due to the low responsiveness of temperature rise when blood coagulates and temperature fall after hemostasis, neutralization 1 The target area (
The problem is that surrounding tissues other than the wound are elutriated.

Therefore, IW Publication No. 58-69556 describes an ablation probe that can be inserted into the channel of an endoscope.
A high-speed heat-generating cauterization pool using a heat-generating element with good heating and cooling responsiveness is disclosed. This prior art device has a nozzle in the probe that discharges a lavage fluid that is pumped through a catheter, which cleans the fluid from the wound and makes it easier to locate bleeding sites that require coagulation. .

[Problem that the invention seeks to solve]

However, in the prior art, blockage of the conduit in connection with the water delivery means for delivering water to the nozzle of the ablation probe. Even if a connection failure occurs in the water supply connector, the pump device continues to rotate. As a result, the internal pressure of the water pipes increased abnormally and the pump equipment was destroyed.

Accidents such as water pipes bursting and probe tips falling off occurred.
there was. This has resulted in a reduction in the withstand voltage of the cautery hemostasis device, an increase in leakage current, and other safety concerns.

The present invention is. This was developed to address these problems by detecting abnormalities in the rice pipeline.

The purpose is to provide safe cautery hemostasis.

[Means for solving problems]

In this cautery hemostasis device l, the cautery bulb p-z 6 is connected to the power supply device 3.
and a wash water tank 10 are connected, and a water supply means 16 is provided between these connections. Water supply hand R16hL'Cr14
77'! ! 18ha*j320hEEka 1 sensor 42. A pump drive control circuit 43 and a power source that supplies power to the control circuit 43 and the pump M (t18) are provided,
The pressure sensor 42 is arranged to detect the pressure of the water supply channel 20, and its output acts on a control circuit 43 to control the pump device 18.

[Effect]

The cleaning water in the cleaning water tank 10 is ejected from the tip nozzle of the cautery blue pro through the water supply channel 20 by driving the pump device 18 . At this time, the pressure inside the water supply channel 20 is detected by the pressure sensor 42, and when an abnormality occurs (the control circuit 4
3, the control circuit 43 operates the water supply means 16 so as to stop driving the pump device 18.

〔Example〕

Embodiments of the BA device of the present invention will be described below with reference to the drawings.

FIG. 2 is a perspective view showing the overall configuration of the ablation treatment device;
As shown in FIG. 2, the cautery hemostatic device l.

A power supply device 3 provided with an operation panel 2 on the front surface, and an ablation probe device [6] which is detachably connected to the power supply device 131c through an electrical connector 4 and a water supply connector 5.

Front power supply unit 3#'I: Connector 8 with cable 79
A 7-piece switch 9 is detachably attached to the fe.

The washing tank 10 is removably attached to the side surface of the power supply device 3.

The cautery pull device 6 includes an elongated and flexible sheath 11, a cautery pull 12 connected to the tip of the sheath 11, the electrical connector 4 and the water supply connector provided at the base 411#C of the sheath 11. The sheath 11 and the cauterizing probe 12 at its tip can be inserted into a treatment tool channel of an endoscope (not shown), and the cauterizing probe 12 is formed into a VC so that it can be introduced into the body cavity through this channel. There is.

A coaxial cable is inserted into the sheath 11 in the axial direction to energize nine heating elements disposed inside the cauterizing plug 12 at the tip.

A liquid passage is formed in the axial direction of the outer periphery of the coaxial couple within the sheath 11 to forcefully feed cleaning water to a plurality of nozzles formed on the outer periphery of the ablation probe 12 .

Then, the electric connector 4 and water supply connector 5 on the base side of this ablation probe device 16 are connected to the power supply device 3, and the connector 8 of the cable 7 of the 7-point switch 9 is also connected to the power supply device rjt31C, and the power supply device 3 is connected to the power supply device 3. Non-switch 3 at , to the source device 3, activate the water pump installed inside the cleaning water tank 10, and send the cleaning water in the cleaning water tank 10 through the liquid passage in the sheath 11 to the cautery tip at the tip]
2. Water is sent from the nozzle on the outer periphery toward the affected area in the body cavity to wash away blood, etc. in the affected area, or by pressing the heating switch 9b side of the 7-way switch 9, water is sent through the coaxial couple in the sheath 11 and into the ablation probe 12 at the tip. The heating element can be heated to a predetermined temperature by energizing it.

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

That is, this power supply device 3 is divided into an upper chamber and a lower chamber 4 by having an intermediate chassis disposed in the planar direction of the lower part of the box 13, and a nozzle formed on the ablation probe 12 in the lower chamber 14 is supplied with cleaning water. Water supply means 16 for pumping water is provided. and. An assembly hole is formed in the intermediate pump, and a pump equipment [118] such as a water pump and a motor installed inside the housing is installed in this assembly hole. The water tube 19 that supplies washing water to the pop device j118 and the water pump device 18 pressurize and
There is a pressurized water tube 2o through which the flushing water is pumped.8
．． Both are connected to the lower chamber 14@ of the water pump equipment @18. A recess 21 is formed in the side surface of the box 13 on the lower chamber 14 side, and a connector 22 to which a water tube 19 is connected is attached to a wall plate 21m forming the recess 21. Further, a water shielding plate 23 having a U-shaped cross section is attached to the front side of the lower chamber 14, and this water shielding plate 23 protects the box 13.
A pressurized water tube outlet chamber 24 is formed which is separated from the upper chamber of the inner chamber, and the pressurized water tube 20 is led out from the lower chamber 14 into this outlet chamber 24 and connected to the tube 20 and the water supply plug 26 attached to the front panel 25 of the bottle. Tio.
1 On the other hand, the recessed part 2 of the box 13
A zuragut 27 is attached to the side surface having the zuragut 1, and the washing water tank 10 is hung on the zuragut 27 on one side.
8, and the washing water tank 10 is hung detachably. This cleaning water tank IO has an outlet port 29.
A cap is screwed onto the mouth portion 29 via a gasket. A water supply tube 30 is connected to this cap, and a plug 31 having a reverse valve is arranged at the tip of the water supply tube 30, so that the plug 31 can be connected to the connector 22 attached to the recess 211C. The check valve of the plug 31 is designed to prevent the cleaning water in the cleaning water tank 10 from flowing out when the plug 31 is removed from the connector 22.
CL, and when W: continues, the check valve is opened by a push member on the connector 22 side.

Water tube 19 pop device i! 18 and the pump device [18 and the pressurized water tube 20] are each provided with check valves 40 and 41 to eliminate loss during water supply.

Furthermore, the middle part 9 of the pressurized water tube 20 is equipped with a pressure sensor 4.
2 is provided, and when the internal pressure of the pressurized water tube 20 exceeds a certain pressure, an output signal is input to the pump device drive control circuit 43. Figure K4 is a diagram showing an example of the pressure sensor 42. A joint 50 having an insertion passage 51 is provided on the side surface of the pressurized water tube 2°. On this joint 50 is an O ring 5.
A mounting member 55, on which the diaphragm 53 is placed via the diaphragm 2 and has a 9 through hole 54, is fixed so as to sandwich the diaphragm 53. An actuation jid 56 is inserted into the through hole 54, and a 51C coil spring 57 is provided so as to fit into and come into contact with the actuation jid 56. An adjustment member 58 for adjusting the spring pressure of the coil spring 57 is attached to the mounting member 55. It is screwed on. Further, a cover body 59 is attached to the mounting member 55, and a disc spring 60 for pressing the actuating p-rad 56 toward the diaphragm 53 is provided inside the cover body 59. The operating prad 56 protrudes from the lid 59 and faces a switch 61 provided outside. In response to the internal pressure of the pressurized water tube 20, the actuating rod 56 moves upward via the diaphragm 53 to turn on the switch 56. At this time, if the inside of the tube 2o pulsates, the actuation iron 56 will cause chattering, so a single disc spring 6o is provided.

A coil spring 57 is provided which is adjusted by an adjustment member 58 in order to set a predetermined value.

The pump device Z movement control circuit 43 starts the pump device 18 when a water supply command is input from the 7-way switch 9 based on the water supply amount set by the setting button 2b provided on the operation panel 2.
Start driving. Washing water is sent through the pressurized water tube 20, and when the pressure inside the tube 20 increases, the pressure sensor 42 detects an abnormality in the pressure, and the switch 61 outputs a signal to the control circuit 43. The control circuit 43 stops driving the pump device 18 based on the signal from the pressure sensor 42. The control circuit 43 also outputs a signal to a warning device 44, such as a buzzer, provided on the front face of the power supply device 3 to drive it.

Note that the pressure sensor 42 is not limited to the above structure (it may also be a pressure sensing element using a semiconductor element).

The detection pressure setting can also be handled electrically.

[Effects of the Invention] According to the present invention, when the internal pressure of the water supply pipe exceeds a certain value and becomes abnormal, the water supply means is stopped due to the abnormality, so damage to each part of the device can be prevented and it is extremely safe.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a diagram explaining the present invention, Fig. 2 is a diagram showing the entire cautery and hemostatic device, and Fig. 3 is a diagram showing a part of the inside of the power supply device.
! 4 is a diagram showing an example of a pressure sensor. 1. Cautery hemostatic device, 3. Power supply device, 6. Cauterization probe, 10. Washing water tank, 16. Water supply means. 18-pump device, 20... water supply channel, 42--pressure sensor, 43... control circuit.

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 distal end surface of the probe is used 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. A cautery and hemostasis device comprising: a pressure sensor provided in the water supply channel, and the water supply means is stopped when there is an abnormality in the water supply channel. (2) A patent characterized in that the water supply means includes a water supply channel, a pump, and a pump drive control circuit, and the pump drive control circuit stops driving the pump in response to an abnormality detection signal from a pressure sensor. The cautery and hemostasis device according to claim 1.