JPS5844066A - Medical laser 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 The present invention relates to a medical laser probe used in a Rede surgical device.

In recent years, laser light has been increasingly used to stop bleeding and treat cancer. However, the insertion part of conventional laser probes is made by inserting the laser guide into a hard tubular mantle, so when treating the affected area in the pharynx or larynx, the insertion part must be inserted into the narrow, curved body cavity. The K had to be inserted in a straight line, and when it was inserted, the observation field of view was narrowed by the K itself, and it was pushed too hard against the body cavity wall, causing great pain to the patient. . On the other hand, it is also possible to use the above laser guide as an optical fiber, but since this optical fiber is very soft, the position of the emitting tip cannot be maintained accurately, making the irradiation direction unstable and causing the target area to be lost. It cannot be carried out because it has the serious drawback of not being able to provide proper treatment.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a configuration in which the insertion portion can be easily plastically deformed by hand and held as it is, thereby making it possible to maintain the insertion portion even in a narrow, curved, tubular body cavity. An object of the present invention is to provide a medical laser probe that can be inserted along the wall of a body cavity.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

Reference numeral 1 in FIG. 1 is a medical laser probe, and this medical laser probe 1 has a handpiece section 3 attached to the tip of a flexible cable 2, so that the cable 2 can be connected to the laser beam generator 114 as described above. It has become. As shown in FIG. 3, the hand piece part 3 is formed by connecting an insertion part 6 to the tip of a relatively thick cylindrical grill lug 5, and the insertion part 6 is made of a ductile metal material in a slanted shape. It is constituted by a formed mantle tube 8. As the ductile metal material, for example, copper annealed at 150 to 250° C. after cold working is used, and the mantle tube 8 can be easily plastically deformed even by hand, and the insertion portion 6 can be held in its curved shape. It looks like this.

On the other hand, an optical fiber 10 is inserted inside the medical radar glove 1 over its entire length. The optical fiber 10 receives a laser beam from a laser beam generator 4 to which the cable 2 is connected, and emits the laser beam from the distal end of the insertion portion 6. In addition, optical fiber 1
The outer periphery of 0 is covered with a silicone resin layer 11, and the outer periphery of the silicone resin layer 11 is further fitted with a protective tube 12 made of resin. In addition, an optical fiber 4 is provided inside the insertion section 6.
A gas passage 13 consisting of a gap around C 10 is formed, and C
It is possible to supply nonflammable gas such as O, gas, etc.

A coiled snow ring 4 is fitted into the distal end of the insertion portion 6 to hold the optical fiber 10 in the center.

Furthermore, a discharge hole 15 is formed in the grid f5 to open the gas passage 13 to the outside.

Next, a method of using the above-mentioned medical laser Zorozo 1 will be explained.

When treating an affected part of the pharynx or larynx, the insertion section 6 is bent by hand in advance to match the shape of the body cavity into which it will be inserted.

Then, as shown in FIG. 1, it is inserted through the oral cavity and positioned along the wall of the body cavity, and a laser beam is irradiated with the tip of the insertion section 6 toward the affected area. Note that the nonflammable gas sent from the laser light generator 4 through the gas passage 13 is released to the outside from the release hole 15, but if you want to spray it on the affected area during laser ablation, cover the release hole 15 with your finger. It can be sprayed from the tip of the insertion section 6.

On the other hand, when stopping bleeding in the brain or cauterizing cancerous tissue, by using it as shown in FIG. 2, it is possible to easily cauterize even the smallest details.

Since the insertion part 6 is configured to be easily plastically deformed by hand and can be held as it is, the medical radar rope 1 itself can be inserted into a narrow curved lumen by positioning it along the lumen wall. vision is obstructed,
It doesn't have to be narrowed down. In addition, the treatment can be performed without causing pain to the patient by strongly pressing it against the body cavity wall. Moreover, since it can be reliably held in a stable position, unnecessary tissues are not cauterized and it is safe.

Furthermore, since the distal end of the insertion section 6 can be easily directed toward the target site and fixed, nonflammable gas can be accurately sprayed onto the affected area.

FIG. 5 shows another embodiment of the present invention, in which the mantle tube 20 is formed by a bellows-like groove. By doing so, plastic deformation becomes easier. Also, it is not easily crushed.

Note that the above-mentioned ductile metal material is not limited to copper that has been annealed after cold working; for example, aluminum that has high purity and has been annealed after working;

Zinc extruded at 030-80°C.

■Lead or lead-tin alloy.

■Silver or silver-copper alloy.

■Money.

Any metal can be used as long as it can be easily plastically deformed by hand, has toughness, and is rich in ductility. In the above example, silver is particularly desirable.

As explained above, the medical laser glove of the present invention can deform its insertion portion to match the shape of the site into which it is inserted and maintain that shape. Treatment can be performed without causing pain to the patient. Moreover, since the distal end of the insertion section can be easily and reliably held toward the target site, accurate treatment can be achieved and safety can be improved. Furthermore, heat resistance can be improved compared to a case where the mantle tube is directly formed from a ductile metal material and the outside thereof is wrapped with a resin layer. Furthermore, since the mantle tube can be formed into a single layer, its structure can be simplified.

[Brief explanation of drawings]

1 and 2 are explanatory diagrams of the state of use of a medical laser glove according to an embodiment of the present invention, FIG. 3 is a side sectional view of the handpiece portion of the medical laser, and FIG. A sectional view taken along the middle TV-EV line, and FIG. 5 is a side sectional view of an insertion portion in another embodiment of the present invention. 1... Medical laser glove, 6... Insertion part, 8...
... Mantle tube, 10... Optical fiber.

Claims (1)

[Claims] A medical laser probe characterized in that a flexible insertion tube, into which optical fibers for guiding laser light are inserted, is made of a ductile metal material that can maintain its shape when bent by hand.