JPH031971B2 - - Google Patents

Description

Detailed Description of the Invention: a Technical Field The present invention relates to a medical laser scalpel device that enables coagulation and incision of diseased tissue by bringing the tip of a rod member that irradiates power laser light into contact with the diseased tissue. In particular, when bleeding occurs in the affected tissue, the bleeding is removed by spraying air, and the spraying of distilled water, etc. is used to prevent burning material from adhering to the tip of the rod member. Regarding the air supply and water supply switching mechanism.

b. Prior art and its problems By optically connecting the tip of a laser fiber and a transparent rod member and bringing the tip of the rod member into contact with the affected tissue, incision of the affected tissue;
Surgical therapy that involves coagulation has already been put into practical use.

In this therapy, laser irradiation is performed by bringing the rod member into direct contact with the affected tissue, so the burnt material from the affected tissue inevitably adheres to the rod member in a sintered state, making it time-consuming to remove the adhesion, so it is difficult to prevent adhesion. Generally, a method of spraying distilled water onto the rod member is used.

In addition, air jet means are required to remove blood remaining in the affected area and to eliminate bleeding in the affected area for the purpose of securing the visual field during surgery.

However, the laser beam generator used in general laser scalpel devices is not equipped with an air supply mechanism for injecting gas such as air from the gap between the laser fiber of the laser scalpel device and the laser fiber protection pipe. However, there is no water supply mechanism, so in order to inject distilled water to the rod member, a part of the air supply mechanism must be improved and an air supply mechanism incorporated, and a water supply pump is also prepared. It was not easy to install.

In addition, as described in Japanese Patent Application Laid-Open No. 58-27551, an air supply connector of an air supply mechanism provided in a laser beam generator and an air supply connector provided at the proximal end of a laser fiber. During the air supply
A system has also been proposed in which a water supply switching mechanism is interposed and water or gas is selectively supplied to the air supply connector of the laser fiber by switching the mechanism. However, even with such a configuration, in order to send water from the air supply connector to the tip of the laser fiber, the gap between the protection pipe for protecting the laser fiber and the laser fiber is used, so once the distillation is carried out in the protection pipe. When water is passed through, the water comes into direct contact with the laser fibers, so water droplets inevitably remain between the fibers that make up the fiber bundle, which is inconvenient when switching to inject gas or air. In addition, there is a risk that bacteria may be transmitted and propagate through the remaining water, but as mentioned above, if water droplets remain inside the protective pipe for protecting the laser fiber, disinfection is difficult and extremely problematic. It was hot.

c. Purpose The present invention was made in order to solve the above-mentioned problems, and it is possible to use the air supply for preventing dirt adhesion that is included in a general laser beam generator without providing a separate water supply pump. Using the air supplied by the mechanism, it is possible to supply water to prevent adhesion of the tip of the rod member, and when supplying water, water is not passed through the protective pipe for protecting the laser fiber, and the grip tube is closed. By passing water through the internal flow channel, it is easy to disinfect after use, and it is also possible to supply air for the purpose of blood removal.
It is an object of the present invention to provide a laser scalpel device that allows easy selection of air supply or water supply.

In order to achieve the above object, the laser scalpel device according to the present invention includes a laser fiber that transmits a power laser beam, and a laser fiber that is inserted inside the laser fiber with a certain gap, and air is supplied through this gap. A laser consisting of a protective pipe, a rod member that is optically coupled to the laser fiber and irradiates a power laser beam from the tip, and a gripping tube that fixes the rod member and the protective pipe at the front and rear ends. In the scalpel device, there is a first air supply path that communicates with the protection pipe in the gripping cylinder and sends the gas sent from there to an external water tank, and a first air supply path that is connected to the protection pipe and sends the gas sent from there to an external water tank, and the gas that is sent into the water tank flows out due to the pressure of the gas sent into the water tank. a second air supply path that communicates with the protective pipe within the grip cylinder and causes the gas to be blown out from the side of the rod member. and a blocking member that blocks communication between the protection pipe and the first air supply path or communication between the protection pipe and the second air supply path.

d Configuration of Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings.

FIG. 1 is an external view showing an embodiment of the present invention, in which a fixing metal fitting 2 is attached to the tip of the gripping tube 1.
A conical rod member 3 is attached, and a protective pipe 4 is fixed to the rear end of the grip tube 1, into which a laser fiber is inserted and which has a certain gap for air supply between it and the laser fiber. It is attached via a tool 5.

Incidentally, from the tip of the protective pipe 4, gas such as air, which is sent from an air supply mechanism provided in a known laser beam generator (not shown), is ejected through the above-mentioned gap.

Furthermore, one end of an air supply tube 8 constituting a first air supply path and a water supply tube 9 constituting a water supply channel are connected to the rear end portion of the gripping tube 1. The other end of 9 is connected to a distilled water tank 10.

Further, in the grip tube 1, which is held by the operator's hand and where the operator's thumb is located, there is a connection between the protection pipe 4 and the first air supply path, or a connection between the protection pipe 4 and the area described below. A switching point 6 is provided as a blocking member that blocks communication with the second air supply path. This switching pot 6 is provided with a vent 11 as an opening for selectively ejecting the supplied air to the outside of the gripping portion. When the air supply indicator 7 or the water supply indicator 7' attached on the tube 1 is matched, air supply and water supply to the rod member 3 are switched.

Next, referring to FIG. 2, the internal structure of the above embodiment will be explained in more detail. An insertion hole 12a passes through the gripping tube 1 in the axial direction, and the insertion hole 12a has the following features: The protection pipe 4 with the laser fiber inserted therein is inserted, and the tip of the protection pipe 4 faces the space formed on the tip side of the grip tube 1 and is approximately 1 mm to 3 mm from the end surface of the rod member 3. The laser fibers in the protection pipe 4 and the rod member 3 are arranged so that their optical axes coincide with each other.

Furthermore, a fixture 5 is engaged with the convex portion formed at the rear end of the grip cylinder 1 with a truncated conical elastic member 14 interposed therebetween, and the fixture 5 and the elastic member 14 provide protection. The pipe 4 is tightened and fixed so as to maintain a constant gap between the pipe 4 and the insertion hole 12a.

Further, a holder 13 is fixed to the tip of the grip cylinder 1, and a truncated cone of the switching holder 6 is rotatably fitted into the holder 13, and the truncated cone is rotated in the axial direction. is penetrated by a vent hole 11 for air release,
The ventilation hole 11 communicates with a gap formed between the protection pipe 4 and the insertion hole 12a.

In addition, as is clear from FIGS. 3 and 4, a through hole 19 is formed in the direction perpendicular to the axial direction of the truncated cone portion, with the ventilation hole 11 communicating in the middle thereof. When the switching knob 6 is rotated and the indicator 6' of the switching knob 6 is aligned with the air supply indicator 7 of the gripping tube 1, the hole 19 is inserted in the direction of the tip of the gripping tube 1 as shown in FIG. When the indicator 6' is connected to the second air supply path 12d extending to the second air passage 12d extending in the water supply path 12d, and the switching knob 6 is rotated to align the indicator 6' with the water supply indicator 7' of the grip tube 1, as shown in FIG. It communicates with the first air supply path 12b extending toward the rear end of the cylinder 1.

The opening end of the second air supply path 12d faces the side of the rod member 3, and the first air supply path 12b is connected to an air supply nipple 15 attached to the rear end of the grip tube 1. communicates with the air supply nipple 15.
is supplied to the distilled water tank 1 via the air supply tube 8.
The inner opening of the air pipe 16 is located above the level of distilled water in the distilled water tank 10.

Furthermore, the distilled water tank 10 has a water pipe 18.
The inner opening of the water supply pipe is located below the liquid level of the distilled water in the distilled water tank 10, and the outer opening is connected to the rear end of the gripping cylinder 1 through the water supply tube 9. It communicates with a water supply nipple 17 provided in the section.

Further, the water supply nipple 17 is connected to the grip tube 1.
It communicates with a water supply channel 12c extending in the axial direction of the
The open end of the water supply channel 12c faces the side of the rod member 3.

e Effects of the Embodiment The present invention is constructed as described above, and the laser fiber and the protective pipe 4 are connected to the air supply mechanism provided in the known laser beam generator (not shown).
Gas such as air and gas (generally CO ₂ gas is used) is sent through the gap between the protective pipe 4 and the insertion hole 12a and ejected from the tip of the protective pipe 4 into the space of the grip tube 1. Switching from the gap 6
Air is sent to the ventilation holes 11 of the.

Here, when the ventilation hole 11 is closed with a finger, when the indicator 6' of the switching knob 6 coincides with the air supply indicator 7, the air, gas, etc. will flow through the through hole 19 as shown in FIG. The water is guided to the second air supply path 12d, and is ejected from the side of the rod member 3 to remove bleeding from the affected tissue. When the air, gas, etc. are in the through hole 19 as shown in Fig.
The air, gas, etc. are fed into the distilled water tank 10 from the air nipple 15 via the air tube 8.

The air, gas, etc. sent into the distilled water tank 1 because the inner opening of the air supply pipe 16 is above the liquid level.
Pressure is applied to the water surface in the water supply pipe 18, and according to the amount of pressure, distilled water is swept away from the water pipe 18 and passes through the water supply tube 9 and the water supply nipple 17 to the grip tube 1.
The fuel is guided to the water supply channel 12c inside the rod member 3 and flows out from the side of the rod member 3 along the side surface of the rod member, thereby preventing burning substances from adhering to the rod member 3.

If you remove your finger from the vent hole 11 to open it, and also rotate the switching knob 6 so that the indicator 6' does not match either the air supply or water supply indicators 7, 7'. Since the air, gas, etc. ejected from the protection pipe 4 is sent to the outside through the vent hole 11, the air and water supply to the rod member 3 is cut off.

In addition, regarding the amount of air and water supplied,
It can be adjusted by the degree to which it is covered with fingers.

When disinfecting after use, remove the fixture 2 from the grip tube 1 and disinfect the water supply channel 12c, as well as the water supply nipple 17, the water flow tube 9,
The water pipe 18 and distilled water tank 10 may be disinfected.

f Effects of the Invention The laser scalpel device according to the present invention includes a laser fiber that transmits a power laser beam, a protective pipe into which the laser fiber is inserted with a certain gap, and air is supplied through this gap. , a laser scalpel device comprising a rod member optically coupled to the laser fiber and irradiating a power laser beam from the tip, and a gripping tube fixing the rod member and the protection pipe to the front and rear ends; a first air supply path that communicates with the protection pipe in the gripping tube and sends the gas sent from there to an external water tank; a second air supply passage that communicates with the protection pipe within the gripping cylinder and causes the gas to be blown out from the side of the rod member; and the first above
communication with the air supply path or the protection pipe and the second
Since a blocking member is provided to cut off communication with the air supply path, there is no need to use a separate water pump.
By using the air supply mechanism provided in conventional laser beam generators, water can be easily supplied to prevent adhesion of the rod member, and gas can be ejected from the side of the rod member during surgery. It is possible to eliminate residual blood, bleeding, etc., and it is also possible to easily select between water supply and air supply.
Furthermore, when feeding water, the water does not pass through the protective pipe for protecting the laser fiber, but instead passes through a flow channel in a separate grip cylinder, so there is no need to worry about water remaining in the protective pipe. To disinfect the inside of the device, it is sufficient to disinfect at least the flow channel and water tank, and disinfection after use can be performed very easily, so the effect is extremely large.

In addition, if the gas supplied to each air supply path is made to communicate with the opening for selectively ejecting it to the outside of the grip, the amount of outflow can be easily controlled using the fingers of the hand gripping the grip tube.

[Brief explanation of the drawing]

Fig. 1 is an external view showing an embodiment of the present invention, Fig. 2 is a sectional view showing the internal structure of the embodiment, and Fig. 3 is a sectional view of the main part with the switching pot switched to air supply. , FIG. 4 is a sectional view of the main part in a state where the switching point is switched to water supply. 1... Gripping tube, 3... Rod member, 4... Protection pipe, 6... Switching pot, 10... Distilled water tank, 11... Ventilation hole.

Claims (1)

[Scope of Claims] 1. A laser fiber that transmits a power laser beam, a protection pipe into which the laser fiber is inserted with a certain gap, and through which air is supplied, and the laser fiber is A laser scalpel device comprising a rod member that is optically coupled and irradiates a power laser beam from the tip, and a gripping tube that fixes the rod member and the protection pipe at the front and rear ends. A first air supply path that communicates with the protection pipe and sends the gas sent from there to an external water tank, and a rod member that guides the water that flows out under the pressure of the gas sent into the water tank into the gripping cylinder. a second air supply passage that communicates with the protection pipe in the gripping cylinder and causes the gas to be blown out from the side of the rod member; A laser scalpel device comprising a blocking member for blocking communication with an air supply path or communication between the protection pipe and the second air supply path. 2. The laser scalpel device according to claim 1, wherein each of the air supply paths communicates with an opening through which the supplied gas is selectively ejected to the outside of the grip tube. 3 The above-mentioned blocking member is configured to
Claim 1 or 2, characterized in that the first air supply path or the second air supply path is a switching device that selectively connects one of the channels and blocks the other. laser scalpel device. 4 At the above switching point, both the first air supply path and the second
Claim 3, characterized in that a communication port is provided that communicates with the air supply path and communicates with the opening.
Laser scalpel device as described in section.