JPH0339698B2

JPH0339698B2 -

Info

Publication number: JPH0339698B2
Application number: JP61262419A
Authority: JP
Inventors: Masahiko Hoshino
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-11-04
Filing date: 1986-11-04
Publication date: 1991-06-14
Also published as: JPS63115553A

Description

【発明の詳細な説明】〔発明の目的〕（業上の利用分野）本発明は、医療用のレーザメスに関する。[Detailed description of the invention] [Purpose of the invention] (Field of commercial use) The present invention relates to a medical laser scalpel.

（従来の技術）従来、光源からのレーザ光出力を光フアイバー
により先端のプローブ部に導き、このプローブ部
を患部または旋術部に押圧しながら、あるいは、
押圧することなくプローブ部から光照射して切
断、切開、凝固止血等を行なうレーザメスが用い
られている。(Prior Art) Conventionally, laser light output from a light source is guided to a probe section at the tip through an optical fiber, and while the probe section is pressed against the affected area or rotation area, or
A laser scalpel is used that performs cutting, incision, coagulation, and hemostasis by emitting light from a probe portion without applying pressure.

この種のレーザメスとしては、例えば、特公昭
61−40419号公報に示されているように、レーザ
光源に接続するフアイバー導光体の先端にたとえ
ば金属コネクタなどの連結部材によりプローブを
取付けている。 As this type of laser scalpel, for example,
As shown in Japanese Patent No. 61-40419, a probe is attached to the tip of a fiber light guide connected to a laser light source by a connecting member such as a metal connector.

（発明が解決しようとする問題点）上記従来のレーザメスの場合、フアイバー導光
体とプローブ部の接合部に血液等が付着する等の
汚れが生じ易い。そして、この汚れにより光路が
遮断され、レーザ光の通過量が減少し、レーザ光
出力の効率が低下する。さらには、接合部に付着
した汚れにレーザ光出力が加えられ、汚れの燃焼
等により取付部材の変形が生じやすい。(Problems to be Solved by the Invention) In the case of the conventional laser scalpel described above, stains such as blood adhering to the joint between the fiber light guide and the probe section are likely to occur. This dirt blocks the optical path, reduces the amount of laser light passing through, and reduces the efficiency of laser light output. Furthermore, the laser beam output is applied to dirt adhering to the joint, and the attachment member is likely to be deformed due to burning of the dirt or the like.

本発明は、上記問題点に鑑みなされたもので、
接合部における効率の低下、燃焼等による連結部
変形を生じないレーザメスを提供することを目的
とする。 The present invention was made in view of the above problems, and
It is an object of the present invention to provide a laser scalpel that does not cause a decrease in efficiency at the joint part or deformation of the joint part due to combustion or the like.

[Structure of the invention]

（問題点を解決するための手段）本発明のレーザメスは、レーザ光源に接続され
るフアイバー導光体と、基端部に上記フアイバー
導光体の先端を挿入する挿入孔およびこの挿入孔
から外周方向へ連通した係止孔を有し、前記フア
イバー導光体より融点が高く、上記レーザ光源か
らのレーザ光を照射するプローブ部とを備え、上
記プローブ部の挿入孔に上記フアイバー導光体の
先端を挿入し、上記プローブ部の融点より低い温
度でこのフアイバー導光体を溶融して、この溶融
されたフアイバー導光体の先端の一部を挿入孔か
ら係止孔に導入し、フアイバー導光体にプローブ
部を一体化固定したものである。 (Means for Solving the Problems) The laser scalpel of the present invention includes a fiber light guide connected to a laser light source, an insertion hole into which the tip of the fiber light guide is inserted into the base end, and an outer circumference from the insertion hole to the fiber light guide. a probe section that has a locking hole that communicates with the fiber light guide, has a melting point higher than that of the fiber light guide, and irradiates the laser light from the laser light source, and inserts the fiber light guide into the insertion hole of the probe section. The tip is inserted, the fiber light guide is melted at a temperature lower than the melting point of the probe part, and a part of the melted tip of the fiber light guide is introduced from the insertion hole into the locking hole to close the fiber guide. The probe unit is integrally fixed to the light body.

（作用）本発明は、プローブ部の挿入孔にフアイバー導
光体の先端を挿入し、プローブ部の融点温度より
低い温度でフアイバー導光体の先端を溶融してそ
の一部を係止孔に導入固化し、フアイバー導光体
にプローブ部を一体化固定する。そして、レーザ
光源からのレーザ光出力をフアイバー導光体を介
してプローブ部に導き、プローブ部の先端からレ
ーザ光を照射する。(Function) In the present invention, the tip of the fiber light guide is inserted into the insertion hole of the probe part, the tip of the fiber light guide is melted at a temperature lower than the melting point temperature of the probe part, and a part of it is inserted into the locking hole. The fiber is introduced and solidified, and the probe part is integrally fixed to the fiber light guide. Then, the laser light output from the laser light source is guided to the probe section via the fiber light guide, and the laser light is irradiated from the tip of the probe section.

（実施例）以下、本発明のレーザメスの一実施例を図面を
参照して説明する。(Example) Hereinafter, an example of the laser knife of the present invention will be described with reference to the drawings.

図において、１は図示しないレーザ光源に接続
されたたとえば石英ガラスからなる断面円形状の
フアイバー導光体で、このフアイバー導光体１の
外周には、たとえば水路を構成する空間部２を介
して同軸状に外管材３が設けられ、この外管材３
の先端近くに流出孔４が穿設されている。 In the figure, reference numeral 1 denotes a fiber light guide with a circular cross section made of quartz glass, for example, which is connected to a laser light source (not shown). An outer tube material 3 is provided coaxially, and this outer tube material 3
An outflow hole 4 is bored near the tip.

また、５はα−Al₂O₃などからなり先端部をた
とえば円錐形としたレーザ光を照射するプローブ
部で、このプローブ部５は小径の基端部６に前記
フアイバー導光体１の先端を挿入する挿入孔７が
設けられているとともに、この挿入孔７と直交す
る外周方向への複数個の係止孔８が設けられてい
る。そして、フアイバー導光体１の先端をプロー
ブ部５の挿入孔７に挿入してその先端面９を挿入
孔７の内端面１０に当接し、この状態でプローブ
部５の融点温度より低い温度でフアイバー導光体
１の先端を溶融し、この溶融したフアイバー導光
体１の一部を各係止孔８に導入して固化する。 Reference numeral 5 denotes a probe part made of α-Al ₂ O ₃ or the like and having a conical tip, for example, for irradiating laser light. An insertion hole 7 is provided for inserting the insertion hole 7, and a plurality of locking holes 8 extending in the outer circumferential direction perpendicular to the insertion hole 7 are provided. Then, the tip of the fiber light guide 1 is inserted into the insertion hole 7 of the probe section 5, and its tip surface 9 is brought into contact with the inner end surface 10 of the insertion hole 7, and in this state, the temperature is lower than the melting point temperature of the probe section 5. The tip of the fiber light guide 1 is melted, and a portion of the melted fiber light guide 1 is introduced into each locking hole 8 and solidified.

このとき、α−Al₂O₃と石英ガラスとの融点は
α−Al₂O₃の方が高いので、プローブ部５は溶け
ることなく、フアイバー導光体１のみが溶融し、
プローブ部５は変形しない。 At this time, since α-Al ₂ O ₃ has a higher melting point between α-Al ₂ O ₃ and silica glass, only the fiber light guide 1 melts without melting the probe portion 5.
The probe section 5 is not deformed.

次に、外管材３の先端部をプローブ部５の先端
部の外周に嵌合する。 Next, the tip of the outer tube member 3 is fitted to the outer periphery of the tip of the probe section 5.

そうして、使用時には、図示しないレーザ光源
からフアイバー導光体１を介してプローブ部５に
レーザ光出力を供給し、プローブ部５の先端から
レーザ光を照射する。このとき、空間部２にプロ
ーブ部５の冷却用または血液等を洗浄する水また
は薬品等の液体を導き、流出孔４から流出させ
る。 Then, during use, a laser light output is supplied from a not-shown laser light source to the probe section 5 through the fiber light guide 1, and the probe section 5 is irradiated with laser light from its tip. At this time, a liquid such as water or chemicals for cooling the probe section 5 or cleaning blood or the like is introduced into the space 2 and flows out from the outflow hole 4.

また、プローブ部５の形状は、上記実施例に示
す円錐形に限らず、截頭円錐形または先端部を直
線状としたものにすることができる。 Further, the shape of the probe portion 5 is not limited to the conical shape shown in the above embodiments, but may be a truncated conical shape or a straight tip.

上記実施例によれば、プローブ部５をα−
Al₂O₃としたので、石英ガラスよりも高温に耐え
機械的強度も高くなる。 According to the above embodiment, the probe section 5 is
Since it is made of Al ₂ O ₃ , it can withstand higher temperatures and has higher mechanical strength than quartz glass.

〔Effect of the invention〕

本発明によれば、プローブ部の挿入孔にフアイ
バー導光体の先端を挿入し、フアイバー導光体の
一部をプローブ部の融点温度より低い温度で溶融
して係止孔に導入固化して、プローブ部をフアイ
バー導光体の先端に一体化したので、接合部を起
因とする汚れによる効率の低下、汚れの燃焼等に
よる連結部材の変形をなくすことができ、さらに
はプローブ部が抜けにくく機械的強度も高くな
り、効率の向上、耐久性の向上が図れる。 According to the present invention, the tip of the fiber light guide is inserted into the insertion hole of the probe part, a part of the fiber light guide is melted at a temperature lower than the melting point temperature of the probe part, and is introduced into the locking hole and solidified. Since the probe part is integrated into the tip of the fiber light guide, it is possible to eliminate the reduction in efficiency due to dirt caused by the joint part and the deformation of the connecting member due to burning of dirt, etc., and furthermore, the probe part is difficult to come off. Mechanical strength also increases, improving efficiency and durability.

[Brief explanation of the drawing]

第１図は本発明のレーザメスの一実施例を示す
一部を切欠いた平面図、第２図は同上一部を切欠
いた側面図、第３図は同上一部を切欠いた分解側
面図である。１……フアイバー導光体、５……プローブ部、
６……基端部、７……挿入孔、８……係止孔。 FIG. 1 is a partially cutaway plan view showing an embodiment of the laser scalpel of the present invention, FIG. 2 is a partially cutaway side view of the same, and FIG. 3 is an exploded side view with the same partially cut away. . 1... Fiber light guide, 5... Probe part,
6... Base end portion, 7... Insertion hole, 8... Locking hole.

Claims

[Claims] 1. A fiber light guide connected to a laser light source, an insertion hole at the base end into which the tip of the fiber light guide is inserted, and a locking hole communicating from the insertion hole toward the outer circumference. and a probe part that has a higher melting point than the fiber light guide and irradiates the laser light from the laser light source, the tip of the fiber light guide is inserted into the insertion hole of the probe part, and the probe part has a higher melting point than the fiber light guide. The fiber light guide is melted at a temperature lower than its melting point, a part of the melted tip of the fiber light guide is introduced from the insertion hole into the locking hole, and the probe part is integrally fixed to the fiber light guide. A laser scalpel characterized by: