JPS6272351A - Structure of laser irradiation part - 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] [I! 1. Field of Industrial Use] This invention relates to the structure of a laser irradiation part of a medical laser device, and when it becomes significantly older, it can be used as a non-contact laser scalpel, and it can also be used as a contact laser scalpel. This is related to the structure of the laser irradiation part, which has a 5J capability and can also be used as a probe for deep irradiation.

(Prior Art) Recently, in the medical field, a medical laser device has been proposed and put into practical use that utilizes the energy of laser light to perform 1st treatment for bleeding in an affected area, excision of affected tissue, vaporization, and other treatments. . Such a medical laser device H basically includes an argon or Y to G laser oscillator, and nine bendable or curveable transmission stages that guide the laser light emitted from the laser oscillator to the side of the object. It is used tangentially when the affected area is outside the body, and used intra-shutally when the affected area is inside the body cavity.

The laser beam is a non-contact type laser scalpel (when used, the tip of this optical transmission knife is equipped with a hasidic bead part with a built-in optical system that converges the laser beam, and used as a contact type laser scalpel). In this case, use a hand piece with a laser knife attached to a hand piece configured to allow the laser knife to receive laser light converged by an optical system, and use a hand piece with a laser scalpel attached to it when used as a probe for deep irradiation. Instead, a probe for deep irradiation was formed at the tip of the optical transmission means.

Contact and non-contact laser scalpels and probes for deep irradiation were individually connected to optical transmission means, and used by changing the connection to the laser device depending on the purpose.

[Problem to be solved]

For example, when performing treatment using a probe for deep irradiation, one long quartz fiber (several lengths) is connected to the laser device 100, and this number of quartz fibers 10
The tip of No. 1 was used as a probe for deep irradiation. Use the tip of this quartz fiber 101 as a probe for deep irradiation! When irradiating a laser beam into a tumor, a considerable amount of l is generated at the tip of the quartz fiber 101, that is, at the probe location.
K temperature, the durability of the part was poor, and the quartz fiber 101 had to be replaced after one irradiation, and the longer the quartz fiber 101, the more difficult the task of replacement was. If it is necessary to continue the treatment, set a spare fiber 102 as shown in FIG. , the tip of the used quartz fiber 101 is
I had to go. Furthermore, the tips of the spare fibers 102 that are not used must also be kept in a sterile state, which is complicated. Furthermore, since the quartz fibers 101 and 102 are expensive, it is uneconomical to prepare a large number of them. Furthermore, the tip of the used quartz fiber 101 needs to be shaved or sterilized in order to be used again, making post-surgery maintenance difficult.

Furthermore, the fibers 101 and 102 as shown in FIG.
It was necessary to use a hand piece that had a built-in lens system for converging the laser beam at the tip of the optical transmission means connected to the 00. Therefore, when the device for deep irradiation is connected to the laser device, there is the trouble of having to remove it and replace it with the device for laser scalpel. Furthermore, when using a laser scalpel, separate devices are required for the contact type and non-contact type, and when using the non-contact type after using the contact type, optical transmission to the laser device W1100 is required. It was necessary to replace one end of each means.

Therefore, this invention can be used as a non-contact type laser scalpel by attaching and removing moss on the tip side of the optical transmission means without changing the attachment of the optical transmission means connected to the laser device 1100. It was developed with the aim of providing a structure for a laser irradiation unit that is both equipped with a probe for deep irradiation.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention provides an engaging means in a hand piece part that guides laser light emitted from a laser device via a light guide fiber and incorporates an optical system that converges the laser light. Attachment 1-, which has an engaged means that is engaged with the engaging means, is detachably attached to the handpiece (J). A means 41 for attaching a probe is provided.

(Function) This invention can be used to treat deep tumors without surgery or without removing normal parts, or when treating tumors in areas that cannot be completely destroyed. When treating a tumor, the probe for deep irradiation is attached to the attachment means of the attachment 1-. This probe
The probe is inserted into the tumor and the laser beam is radiated from the tip of the probe to treat the tumor at low wattage. When excision becomes necessary, the affected area can be excised by removing the probe for deep irradiation and attaching a laser scalpel to the attachment means. In addition, increase the number of sockets (W) of the laser device to a high comb (remove all attachments, laser scalpels, or deep irradiation gloves from the handpiece section, and use only this handpiece section (as a non-contact laser scalpel). You can also do it.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a handpiece portion 2 is formed at the tip of a light guiding fiber 1, one end of which is connected to a laser device 100 (see FIG. 5). An optical system 3 is provided to converge the laser light guided to the light guide nozzle 1.

Further, a male threaded portion is formed as an engaging means 4 on the outer circumferential surface of the hand piece portion 2 near the tip. When the tip of this hand piece 8112 is applied to the affected area, it becomes a focused laser beam or a non-contact type laser scalpel.

An engaged means 6 of an attachment 5 engages with an engaging means 4 provided on the handpiece portion 2 for attaching and detaching purposes. This first stage 6 to be engaged is formed of a female threaded portion. therefore,
By inserting the hand piece part 2 into the attachment 5 and rotating the attachment 5, the engaging means 4 is connected to the engaged means 6.
or engagement, that is, 5llll engagement. This attapumen [
・Attachment means 7 is installed on the tip side of 5.
, 7B] Spring member 8 having a ring-shaped spring
(・tsu<(gi, groove parts 7A-, 7 of people's members 7A, 7B)
The space surrounded by B- is biased in the direction of reducing the radius of the long straw insertion hole. The tip of attachment 5 is 2
A stop portion 5A is formed to prevent the two divided members 7A and 7B from being removed. A stool 9 is provided behind these two members 7A and 7B. The two members 7A and 7B sandwiched between the stopper portion 5Δ and the stopper 9 are configured to move only in the direction 11 in the drawing. ] - A ring-shaped member 8 connecting both ends of the spring is connected to two members 7Δ, 7(
3 to rl (near - moon) in the direction of f=J, so
If a member whose diameter b is larger than the diameter of the insertion hole in which the grooves 7A' and 7B- are formed in the received state as shown in FIG. They are pushed in a direction that moves them further apart. A probe 10 for deep irradiation that can be attached to this attachment means 7
A fixture 12 is fixed to the proximal end of the noa fiber 11 for deep parts, and an insertion limiter 13 made of silicone rubber or the like is fitted into the fiber 11 for deep parts so as to be movable in the axial direction.

As the deep fiber 11, quartz noivar or ceramic 7P ivar, which could not be used in the past, is used. The base end side of the fiber 11 for deep parts serves as a light receiving part and guides the rays (IJ')V collected by the optical system 3 to the tip of the fiber 11 for deep parts. The insertion limiter 13, which consists of a series of bars and the like, limits the insertion depth into the affected area by 111 points.

By inserting the fixture 12 fixed to the base end of the deep part irradiation bar 11 into the insertion hole to be formed, the deep part irradiation bar 11 is inserted into the attachment means 7.
-110 is taken and J is taken.

Figure 2 shows the assembled state of each member shown in the first flash.
- When inserted between 2") part ?47A.

7B is pushed apart in the direction l\ by resisting the spring j of the spring member 8. Due to the spring force of the spring member 8, the fixture 12 is tightened and held in the grooves 78-, 7['3-.

Another embodiment shown in FIG. 3 is a member 7A in which the 7-tapment 5 is divided into a proximal member 5B and a distal member 5C, and the removal means 7 is 2).

7B connected by a spring member 8, and a spring 14 of 4J added thereto.The proximal end member 5B constituting the attachment 5 has 5 holes long in the axial direction. 6[3 is 7 and this 6
Place the screw 6△ inserted into B in the correct position. The tip of the screw 6A engages with an engaging means 4 consisting of a female thread formed on the handpiece portion 2.

Base end member 5B and distal end member 5G and 16L threaded portion 5]
[)] Screw fit 4. Also, the member 7△ of the handle (placed at the location of I-chofU7,] the springs 4 and 2'),
7B (the ring body 15) is biased toward the left in the drawing by the spring 14, so the stopper 9 in the previously described embodiment plays a similar role.

In the embodiment shown in FIG. 3, the screw 6A is removed from the engagement means 4 consisting of a female thread, and the entire attachment 5 including the proximal member 5B is removed from the hand piece 2 to be used as a non-contact laser scalpel. Alternatively, even if only the proximal member 5C is removed and the proximal member 5B remains attached to the handpiece part 2, the handpiece part 2 can be used as a non-contact laser scalpel. .

In the embodiment shown in FIG. 4, a laser scalpel 16 is attached to the attachment means 7 of the attachment 5 instead of the probe 10 for deep irradiation. Although the structure of the attachment 5 is similar to that of the embodiment shown in FIG. 1, it goes without saying that an attachment 5 as shown in FIG. 13 may also be used.

In all of the embodiments described above, a chuck mechanism is used as the attachment means 7, and the probe 10 for deep irradiation and the laser scalpel 16 can be attached with one touch. It goes without saying that a female thread portion into which this screw fits may be formed on the inner circumferential surface of the insertion hole of the attachment means 7 by cutting, or that various other known means may be employed. In addition, although the first stage of engagement 4 and the engaged means 6 are engaged with each other by screw fitting or screwing with screws, the attachment 5 can be connected with a single touch using a plate spring or the like.
It is also possible to adopt a method of fitting the hand piece into the handpiece portion 2. In other words, the illustrated engaging means 4, engaged means 6, and attachment means 7 are not limited to the illustrated means, and it goes without saying that various known means can be employed.

〔effect〕

As explained above, according to the present invention, the engagement means is provided in the handpiece portion which includes an optical system for guiding the laser light emitted from the laser V device through the light guide fiber and converging the laser light, An attachment having an engaged means that is engaged with this engaging means is removably attached to the handpiece, and a laser scalpel or a probe for deep irradiation that receives laser light converged by an optical system can be attached and detached to this attachment. Since we have provided a mounting means for attaching to the laser device, there is no need to remove one end of the light guide fiber, which is the optical transmission means, from the laser device, and it can be used as a non-contact laser scalpel or a contact laser scalpel while the light guide fiber is connected to the laser device. Furthermore, it can be used as a probe for deep irradiation. Therefore, it can be used alternately as an intraoperative laser scalpel and for deep irradiation. Furthermore, since the probe for deep irradiation attached to the attachment means can be constructed as a disposable probe, it is possible to use a probe that is completely sterilized at all times. In addition, since there is no need to use several fibers as in conventional probes, the material cost is extremely low, and the material used for the probe can be selected. For example, if ceramic fiber is used, durability can be improved. will improve. Also,
Even if the probe wears out after one irradiation and you want to continue irradiating deep parts, you can easily replace the probe, improving work efficiency.

[Brief explanation of drawings]

FIG. 1 is an exploded sectional view showing a preferred embodiment of the present invention, FIG. 2 is an assembled sectional view of FIG. 1, and FIG. 3 is a sectional view showing another embodiment. FIG. 4 is a cross-sectional view of a state in which a laser scalpel is attached to the tip, and FIG. 5 is a simplified perspective view showing a conventional example. DESCRIPTION OF SYMBOLS 1...Light guide fiber, 2...Hand piece part, 3...Optical system, 4...System combining means, 5...Attachment , 6...Engaged means, 7...Attachment means, 10...Probe for deep irradiation, 16...
・Laser scalpel, 100... Laser device.

Claims (1)

[Scope of Claims] 1. An engaging means is provided in a hand piece portion in which a laser beam emitted from a laser device is guided via a light guiding fiber and includes an optical system for converging the laser beam, and the engaging means is provided with an engaging means. An attachment having an engaged means to be engaged is removably attached to the handpiece portion, and a attachment means for detachably attaching a laser scalpel or a probe for deep irradiation that receives laser light converged by an optical system to the attachment. A structure of a laser irradiation part characterized by providing: 2. The structure of the laser irradiation unit according to claim 1, wherein the attachment mounting means is constituted by a chuck mechanism.