JPH01148279A - Laser therapeutic device - Google Patents
Laser therapeutic deviceInfo
- Publication number
- JPH01148279A JPH01148279A JP62306901A JP30690187A JPH01148279A JP H01148279 A JPH01148279 A JP H01148279A JP 62306901 A JP62306901 A JP 62306901A JP 30690187 A JP30690187 A JP 30690187A JP H01148279 A JPH01148279 A JP H01148279A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- laser
- tip
- laser probe
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001225 therapeutic effect Effects 0.000 title description 3
- 239000000523 sample Substances 0.000 claims abstract description 16
- 238000011282 treatment Methods 0.000 claims abstract description 4
- 238000013532 laser treatment Methods 0.000 claims description 8
- 230000003902 lesion Effects 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
- B29C45/1705—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using movable mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
- B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
- B29C2045/1707—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a liquid, e.g. water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
- B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
- B29C2045/171—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using an evaporating substance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
- B29C2049/4602—Blowing fluids
- B29C2049/4667—Blowing fluids being foamable
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Laser Surgery Devices (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ガン等の病変部にレーザ光を照射して治療を
行なうレーザ治療装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a laser treatment device that performs treatment by irradiating a lesion such as cancer with laser light.
近年、ガン組織にレーザ光を照射して治療する方法（レ
ーザサーミア）が用いられ、大きな治療効果をあげてい
る。このレーザサーミアはレーザ光により病変部を４２
〜４３℃に加温して治療を行なうため、レーザ光が照射
される部位の温度を測定し、レーザ光の出力を制御する
必要がある。In recent years, a method of treating cancerous tissue by irradiating it with laser light (laser thermia) has been used and has shown great therapeutic effects. This laser thermia uses laser light to target lesions at 42
Since the treatment is performed by heating the area to ~43°C, it is necessary to measure the temperature of the area to which the laser beam is irradiated and control the output of the laser beam.
従来、レーザ光の照射部位の温度を測定する手段として
は、たとえば特公昭６２−８１７４号公報（以下、第１
従来例という）または実開昭１１＋２−６４５５８号公
報（以下、第２従来例という）に示されたものがある。Conventionally, as a means for measuring the temperature of a site irradiated with laser light, for example, Japanese Patent Publication No. 8174/1983 (hereinafter referred to as No. 1
There is one shown in Japanese Utility Model Application Publication No. 11+2-64558 (hereinafter referred to as a second conventional example).
しかしながら、第１従来例に示されたものは、レーザプ
ローブの先端に感熱素子を設け、この感熱素子で生体組
織の表面温度を検出するため、深さ方向の温度情報を得
ることができないという欠点があった。また、第２従来
例に示されたものは、スケール付温度センサを生体内に
穿刺して計測するものであるが、深さ方向の温度情報を
得るためにはスケール付温度センサを移動させなければ
ならないため、内視鏡下でのレーザ治療には不向きであ
・った。However, the first conventional example has a disadvantage that temperature information in the depth direction cannot be obtained because a heat-sensitive element is provided at the tip of the laser probe and the surface temperature of the living tissue is detected by this heat-sensitive element. was there. Furthermore, in the second conventional example, a temperature sensor with a scale is inserted into a living body to measure the temperature, but in order to obtain temperature information in the depth direction, the temperature sensor with a scale must be moved. Therefore, it was not suitable for endoscopic laser treatment.
本発明はこのような問題点に着目してなされたもので、
レーザ光が照射される部位の深さ方向の温度情報を得る
ことができるレーザ治療装置を提供することを目的とす
る。The present invention was made by focusing on these problems.
It is an object of the present invention to provide a laser treatment device that can obtain temperature information in the depth direction of a region irradiated with laser light.
上記目的を達成するために本発明は、レーザ光を照射部
位へ導くレーザプローブの先端に多点温度計を設けたこ
とを特徴とするものである。In order to achieve the above object, the present invention is characterized in that a multi-point thermometer is provided at the tip of a laser probe that guides laser light to an irradiation site.
本発明では、レーザプローブの先端に設けられた多点温
度計を生体内に穿刺することにより、深さ方向の温度情
報を得ることができる。In the present invention, temperature information in the depth direction can be obtained by puncturing a living body with a multipoint thermometer provided at the tip of a laser probe.
以下、本発明の実施例を図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図ないし第４図は本発明の第１実施例を示すもので
、このレーザ治療装置１は装置本体２と、この装置本体
２からのレーザ光を照射部位へ導くレーザプローブ３と
から構成されている。上記レーザプローブ３は、第３図
に示すように可撓性を有する外装チューブ４の内部に保
護チューブ５を設け、この保護チューブ５の内側に導光
ファイバー６を挿通して構成されており、その先端には
先端が尖った円錐形状の接触型チップ７が設けられてい
る。この接触型チップ７はチップホルダ８と着脱自在な
嵌合で組み合わされており、外装チューブ４の先端に嵌
挿されたチップ受け９の突き当て部１０に接触型チップ
７の入射端１１を突き当て、上記チップホルダ８をチッ
プ受け９にねじ込むことにより固定されるようになって
いる。そして、チップホルダ８にはスリツリ溝１２が形
成されており、このスリツリ溝１２より冷却用の流体（
例えば空気）が流出するようになっている。1 to 4 show a first embodiment of the present invention, and this laser treatment device 1 is composed of a device main body 2 and a laser probe 3 that guides laser light from the device main body 2 to the irradiation site. has been done. As shown in FIG. 3, the laser probe 3 is constructed by providing a protective tube 5 inside a flexible exterior tube 4, and inserting a light guide fiber 6 inside the protective tube 5. A conical contact tip 7 with a pointed tip is provided at the tip. This contact type tip 7 is removably combined with a chip holder 8, and the entrance end 11 of the contact type tip 7 is pushed against the abutment part 10 of the chip receiver 9 fitted into the tip of the outer tube 4. The chip holder 8 is fixed by screwing the chip holder 8 into the chip receiver 9. A slotted groove 12 is formed in the chip holder 8, and a cooling fluid (
For example, air) is allowed to flow out.
また、上記レーザプローブ３の先端には第２図に示す如
く多点熱電対１３が設けられている。この多点熱電対１
３は多数の異種金属を接合してなり、各金属の接合点で
温度を計測するように構成されている。上記多点熱電対
１３の出力信号は、リード線１４を介して装置本体２内
の温度測定回路１５に入力され、この温度測定回路１５
で各点の温度が測定されるようになっている。そして、
温度測定回路１５で測定された各点の温度は処理回路１
６を介してコントロール回路１７に温度測定信号として
入力され、このコントロール回路１７でレーザ発振部１
８の出力を制御するようになっている。Furthermore, a multi-point thermocouple 13 is provided at the tip of the laser probe 3, as shown in FIG. This multi-point thermocouple 1
3 is made by joining a large number of different metals, and is configured to measure the temperature at the joining point of each metal. The output signal of the multi-point thermocouple 13 is input to the temperature measurement circuit 15 in the device main body 2 via the lead wire 14.
The temperature at each point is measured. and,
The temperature at each point measured by the temperature measurement circuit 15 is determined by the processing circuit 1.
6 to the control circuit 17 as a temperature measurement signal, and this control circuit 17 controls the laser oscillation unit 1.
It is designed to control the output of 8.
このように本実施例では、レーザプローブ３の先端に多
点熱雷対１３を設けたので、この多点熱電対１３を第２
図の如く生体内に刺し込むことにより、深さ方向の温度
情報を得ることができる。In this embodiment, since the multi-point thermocouple 13 is provided at the tip of the laser probe 3, this multi-point thermocouple 13 can be connected to the second
By inserting it into a living body as shown in the figure, temperature information in the depth direction can be obtained.
これにより病変部を所定温度に加温できるため、治療効
果を向上させることができる。This allows the lesion to be heated to a predetermined temperature, thereby improving the therapeutic effect.
なお、本発明は上記実施例に限定されるものではない。Note that the present invention is not limited to the above embodiments.
以下、第５図および第６図を参照して本発明の他の実施
例について説明する。なお、各図中第１図ないし第４図
と同一部分には同一符号を付し、その詳細な説明は省略
する。Other embodiments of the present invention will be described below with reference to FIGS. 5 and 6. In each figure, the same parts as in FIGS. 1 to 4 are designated by the same reference numerals, and detailed explanation thereof will be omitted.
第５図は本発明の第２実施例を示し、非接触型レーザプ
ローブの先端に多点熱電対１３を設けたものである。す
なわち、このレーザプローブ３の先端には中央が開口し
た先端チップ１９が取付けられ、このチップ１９の開口
内に導光ファイバー５の出射端を位置させてレーザ光を
照射するようになっている。そして、冷却用の流体は外
装チューブ４と保護チューブ５との間隙２０を通り、先
端チップ１９に形成された溝２１を介して先端の流体放
出口２２から放出されるようになっている。FIG. 5 shows a second embodiment of the present invention, in which a multi-point thermocouple 13 is provided at the tip of a non-contact type laser probe. That is, a tip tip 19 with an opening in the center is attached to the tip of the laser probe 3, and the output end of the light guide fiber 5 is positioned within the opening of the tip 19 to irradiate the laser beam. The cooling fluid passes through a gap 20 between the exterior tube 4 and the protection tube 5, and is discharged from a fluid discharge port 22 at the tip via a groove 21 formed in the tip 19.
また、第６図は本発明の第３実施例を示し、この実施例
は先端チップ２３に貫通孔２４を設け、この貫通孔２４
内に多点熱雷対２５を挿通したものである。なお、これ
らの第１ないし第３実施例では、深さ方向の温度情報を
得る手段として多点熱雷対１３を用いたが、サーミスタ
等の多点温度計を用いてもよい。また、多点温度計を形
状記憶合金で形成し、体腔内に挿入する際には直線状に
しておき、温度を測定する際には形状を変化させるよう
にしてもよい。Further, FIG. 6 shows a third embodiment of the present invention, in which a through hole 24 is provided in the distal tip 23, and this through hole 24
A multi-point thermal lightning pair 25 is inserted inside. In the first to third embodiments, the multi-point thermal lightning pair 13 is used as a means for obtaining temperature information in the depth direction, but a multi-point thermometer such as a thermistor may also be used. Further, the multi-point thermometer may be formed of a shape memory alloy, and may have a straight shape when inserted into a body cavity, but may change its shape when measuring temperature.
以上説明したように本発明は、レーザプローブの先端に
多点温度計を設けたので、レーザ光が照射される部位の
深さ方向の深さ方向の温度情報を得ることができ、温度
制御性に優れたレーザ治療装置を提供できる。As explained above, in the present invention, since a multi-point thermometer is provided at the tip of the laser probe, it is possible to obtain temperature information in the depth direction of the area irradiated with laser light, and the temperature control is improved. We can provide excellent laser treatment equipment.
第１図は本発明の第１実施例を示すレーザ治療装置の概
略図、第２図は同装置のレーザプローブの先端部を示す
側面図、第３図はその断面図、第４図は第３図に示すＩ
Ｖ−ＩＶ線の矢視断面図、第５図は本発明の第２実施例
を示す図、第６図は本発明の第３実施例を示す図である
。
１・・・レーザ治療装置、２・・・装置本体、３・・・
レーザプローブ、５・・・導光ファイバー、７・・・接
触型チップ、１３・・・多点熱電対。
出願人代理人 弁理士 坪井 淳
第４図FIG. 1 is a schematic diagram of a laser treatment device showing a first embodiment of the present invention, FIG. 2 is a side view showing the tip of a laser probe of the same device, FIG. 3 is a sectional view thereof, and FIG. I shown in Figure 3
A sectional view taken along the line V-IV, FIG. 5 is a diagram showing a second embodiment of the present invention, and FIG. 6 is a diagram showing a third embodiment of the present invention. 1... Laser treatment device, 2... Device body, 3...
Laser probe, 5... Light guide fiber, 7... Contact type chip, 13... Multi-point thermocouple. Applicant's agent Patent attorney Atsushi Tsuboi Figure 4
Claims (1)
置において、前記レーザ光を照射部位へ導くレーザプロ
ーブの先端に多点温度計を設けたことを特徴とするレー
ザ治療装置。1. A laser treatment device for performing treatment by irradiating a laser beam onto a lesion, characterized in that a multi-point thermometer is provided at the tip of a laser probe that guides the laser beam to the irradiation site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62306901A JPH01148279A (en) | 1987-12-04 | 1987-12-04 | Laser therapeutic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62306901A JPH01148279A (en) | 1987-12-04 | 1987-12-04 | Laser therapeutic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01148279A true JPH01148279A (en) | 1989-06-09 |
Family
ID=17962626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62306901A Pending JPH01148279A (en) | 1987-12-04 | 1987-12-04 | Laser therapeutic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01148279A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0354616U (en) * | 1989-09-29 | 1991-05-27 |
-
1987
- 1987-12-04 JP JP62306901A patent/JPH01148279A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0354616U (en) * | 1989-09-29 | 1991-05-27 |
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