JP2601619B2 - Ultrasonic surgical instrument - Google Patents
Ultrasonic surgical instrumentInfo
- Publication number
- JP2601619B2 JP2601619B2 JP5137745A JP13774593A JP2601619B2 JP 2601619 B2 JP2601619 B2 JP 2601619B2 JP 5137745 A JP5137745 A JP 5137745A JP 13774593 A JP13774593 A JP 13774593A JP 2601619 B2 JP2601619 B2 JP 2601619B2
- Authority
- JP
- Japan
- Prior art keywords
- horn
- ultrasonic surgical
- hard tissue
- surgical instrument
- horn body
- 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.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B2017/320072—Working tips with special features, e.g. extending parts
Landscapes
- Surgical Instruments (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、生体の硬組織を切削す
る超音波手術器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic surgical device for cutting hard tissue of a living body.
【０００２】[0002]
【従来の技術】従来、超音波振動を伝達して生体の硬組
織を切削する超音波手術器が知られている。2. Description of the Related Art Conventionally, there has been known an ultrasonic surgical device for transmitting ultrasonic vibration to cut hard tissue of a living body.
【０００３】図５は、従来の超音波手術器の作用部（以
下、「ホーン」という）を示す斜視図であり、図６は、
その断面図である。FIG. 5 is a perspective view showing a working portion (hereinafter, referred to as a “horn”) of a conventional ultrasonic surgical instrument, and FIG.
It is sectional drawing.
【０００４】ホーン１は、チタン合金により構成されて
おり、基端部１ａはハンドピース本体に接続され、ホー
ン体部１ｂは円錐形状をしており、先端部分（刃先部）
１ｃは菱形から先端にいくに従ってへら状になってい
る。The horn 1 is made of a titanium alloy, the base end 1a is connected to the main body of the handpiece, the horn body 1b has a conical shape, and the tip (the cutting edge).
1c has a spatula shape from the rhombus toward the tip.
【０００５】発生した超音波振動は、ホーン１へ伝達さ
れて、ホーンの刃先部１ｃで硬組織（骨など）の破砕切
削がなされる。この際、ハンドピース本体（図示せず）
から、ホーン１の外側を介して灌流液が供給される。[0005] The generated ultrasonic vibration is transmitted to the horn 1 and the hard tissue (eg, bone) is crushed and cut by the cutting edge 1c of the horn. At this time, the handpiece body (not shown)
From the horn 1 through the outside of the horn 1.
【０００６】また、特開昭６０−２３４６５２号公報に
は、灌流液をホーンの一部内に通した超音波手術器が開
示されている。Japanese Unexamined Patent Publication No. Sho 60-234652 discloses an ultrasonic surgical device in which a perfusate is passed through a part of a horn.
【０００７】[0007]
【発明が解決しようとする課題】このような硬組織用ホ
ーンでは、熱が発生し、これによりホーンの寿命を短く
するという問題があった。従来では、灌流液がホーンの
外側を流れることから、冷却が行われていたが、より効
率的な冷却や発熱量の抑制が望まれいた。However, such a hard tissue horn has a problem in that heat is generated, thereby shortening the life of the horn. Conventionally, cooling has been performed because the perfusate flows outside the horn, but more efficient cooling and suppression of heat generation have been desired.
【０００８】また、硬組織用ホーンの破砕能力を更に高
める要請もある。There is also a demand for further increasing the crushing ability of the horn for hard tissue.
【０００９】本発明は、上記従来の課題に鑑みなされた
ものであり、その目的は、発熱量を低減でき、かつ破砕
能力を向上させた超音波手術器を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide an ultrasonic surgical device capable of reducing the amount of heat generated and improving the crushing ability.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するた
め、本発明は、発生した超音波振動を伝達する作用部を
備え、前記作用部は円錐形状のホーン体部とその先端に
形成された刃先部で構成され、前記刃先部で硬組織を破
砕する超音波手術器において、前記ホーン体部に軸中心
方向に沿って非貫通の長穴を穿設し、前記刃先部をその
中身が完全に詰まった肉厚構造とし、前記ホーン体部に
前記長穴を穿設することによって、前記ホーン体部の重
量を削減すると共にその表面積を増大させたことを特徴
とする。In order to solve the above-mentioned problems, the present invention comprises an operating portion for transmitting the generated ultrasonic vibration, wherein the operating portion is provided on a conical horn body and a tip thereof.
Consists of the formed cutting edges, the ultrasonic surgical instrument for fracturing a hard tissue by the cutting edge, bored long holes non-through along the axial center direction in the horn body portion, the said cutting edge
The horn body has a thick structure with the contents completely packed.
By drilling the slot, the weight of the horn body is reduced.
The amount is reduced and the surface area is increased .
【００１１】[0011]
【作用】上記構成によれば、硬組織の破砕を行う刃先部
が肉厚構造とされ、構造が強化されている。一方、刃先
部以外のホーン体部には、軸方向に沿って長穴が設けら
れているので、作用部のすべての部分を一体部材で形成
した場合に比べ、発熱を呈する部材を減少させて、発熱
を抑えることが可能となる。この場合でも、上述のよう
に、刃先部は強化されているので、破砕作用を低減させ
ることはない。According to the above construction, the cutting edge for crushing the hard tissue has a thick structure, and the structure is reinforced. On the other hand, since the horn body other than the blade edge is provided with a long hole along the axial direction, the number of members that generate heat is reduced as compared with the case where all the portions of the working portion are formed as an integral member. , Heat generation can be suppressed. Even in this case, as described above, since the cutting edge is reinforced, the crushing action is not reduced.
【００１２】更に、本発明者の実験によれば、長穴を設
けることによって、逆に超音波振動の振幅増大効果を得
られることが確認されている。Further, according to an experiment conducted by the inventor, it has been confirmed that the effect of increasing the amplitude of the ultrasonic vibration can be obtained by providing the elongated hole.
【００１３】[0013]
【実施例】以下、本発明に係る実施例を図を用いて説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the drawings.
【００１４】図１は、本発明に係る実施例の硬組織用ホ
ーン１を示す断面図であり、図２は、本発明に係る超音
波手術器を示す斜視図である。[0014] Figure 1 is a sectional view showing a hard tissue horn 1 embodiment of the present invention, FIG. 2 is a perspective view showing an ultrasonic surgical instrument according to the present invention.
【００１５】図２に示すように、硬組織用ホーン１又は
軟組織用ホーン１５を任意にハンドピース本体１６に装
着し得るようになっており、ハンドピース本体１６の先
端には、硬組織用ホーン１又は軟組織用ホーン１５を螺
合するねじ穴１７が刻設されている。そして、硬組織用
ホーン１及び軟組織用ホーン１５の基端部１ａ、１５ａ
には、ハンドピース本体１６のねじ穴１７と螺合するた
めのねじ１８が刻設されており、ねじ１８に隣接して、
つば１９と７ｍｍの六角部２０とが一体に形成されてい
る。これにより、術者はホーンのみを交換することが可
能となり、硬組織用ハンドピースと軟組織用ハンドピー
スとを持ち換える手間を省ける。As shown in FIG. 2, the horn 1 for hard tissue or the horn 15 for soft tissue can be arbitrarily attached to the handpiece body 16, and the tip of the handpiece body 16 is provided with a horn for hard tissue. A screw hole 17 into which the horn 1 or the soft tissue horn 15 is screwed is formed. Then, the base ends 1a, 15a of the horn 1 for hard tissue and the horn 15 for soft tissue.
The screw 18 for screwing with the screw hole 17 of the handpiece body 16 is engraved on the
A flange 19 and a 7 mm hexagonal portion 20 are integrally formed. This allows the surgeon to replace only the horn, and saves the trouble of switching between the hard tissue handpiece and the soft tissue handpiece.
【００１６】硬組織用ホーン１の刃先部１ｃは、約１０
ｍｍの長さがあり、ホーン体部１ｂ（基端側の直径は
４．４ｍｍで先端に向けて徐々に細くなっている）との
接続部分２１の断面形状が菱形となっており、先端２２
は幅３ｍｍ、厚さ１．５ｍｍのへら状となっている。The cutting edge 1c of the horn 1 for hard tissue has a length of about 10
mm, and the cross-sectional shape of the connection portion 21 with the horn body 1b (having a diameter on the proximal end of 4.4 mm and gradually narrowing toward the distal end) is rhombic, and the distal end 22
Is a spatula having a width of 3 mm and a thickness of 1.5 mm.
【００１７】そして、ホーン１は、図１に示すように、
基端部１ａからホーン体部１ｂの中心部分に２ｍｍの長
穴２３が穿設されており、これによりホーン１はパイプ
状となり、従来例に比べて軸方向の剛性をあまり低下さ
せずに重量の軽減を図れる。The horn 1 is, as shown in FIG.
A 2 mm long hole 23 is formed from the base end 1a to the center of the horn body 1b, so that the horn 1 has a pipe shape, and does not significantly reduce the rigidity in the axial direction as compared with the conventional example. Can be reduced.
【００１８】従って、ホーン１の重量が減少することに
より、ホーン１内の振動による摩擦量を低減して発熱量
を低減する。なお、ホーンの刃先部には、中が完全に詰
まった肉厚構造が採用され、構造的に強化され、十分な
破砕作用を得ることができる。Accordingly, since the weight of the horn 1 is reduced, the amount of friction due to vibration in the horn 1 is reduced, and the amount of heat generated is reduced. In addition, the horn blade portion has a thick wall structure in which the inside is completely clogged, is structurally reinforced, and can obtain a sufficient crushing action.
【００１９】また、実験により、従来例に比べ、振動の
振幅が２０％以上向上することが確認されており、破砕
作用の向上が図れる。Experiments have confirmed that the amplitude of the vibration is improved by 20% or more as compared with the conventional example, and the crushing action can be improved.
【００２０】次に、参考例について説明する。なお、そ
の外観は図２に示したものと同じである。Next, a reference example will be described. Incidentally, the appearance of that <br/> is the same as that shown in FIG.
【００２１】図３には、参考例の構成が示されている。
この実施例では、長穴２３に連通して径が小さい連通穴
３０が軸方向に形成されている。ここで、先端部は、連
通穴３０があるものの、その径が長穴２３より小さく、
肉厚構造となっている。よって、この参考例では、長穴
２３及び連通穴３０を介して、灌流液を先端前方に流出
させることができる。同時に、内部冷却効果を得ること
ができる。FIG. 3 shows the configuration of the reference example.
In this embodiment, a communication hole 30 having a small diameter communicating with the elongated hole 23 is formed in the axial direction. Here, although the distal end portion has the communication hole 30, the diameter thereof is smaller than that of the elongated hole 23,
It has a thick structure. Therefore, in this reference example, the perfusate can be caused to flow forward through the long hole 23 and the communication hole 30. At the same time, it is <br/> with this to obtain an internal cooling effect.
【００２２】図４には、他の参考例が示されている。こ
の参考例では、長穴２３の先端から軸と直交する方向に
横穴３２が形成されている。ここで、刃先部は、図１と
同様に中が完全に詰まって肉厚構造となっている。FIG. 4 shows another reference example. In this reference example, a lateral hole 32 is formed from the tip of the elongated hole 23 in a direction perpendicular to the axis. Here, as in FIG. 1 , the inside of the blade tip portion is completely filled and has a thick structure.
【００２３】従って、この参考例では、長穴２３及び横
穴３２を介して、刃先部の近傍へ灌流液の供給を行うこ
とができる。なお、横穴３２が、ホーンの側面に形成さ
れ、刃先部先端に形成されていないので、破砕切削を行
った場合に刃先部先端が硬組織に引っ掛からず、スムー
ズな切削が行える。Therefore, in this reference example, the perfusate can be supplied to the vicinity of the cutting edge via the elongated hole 23 and the lateral hole 32. In addition, since the side hole 32 is formed in the side surface of the horn and is not formed at the tip of the cutting edge, when crushing and cutting is performed, the tip of the cutting edge does not catch on hard tissue, and smooth cutting can be performed.
【００２４】なお、長穴２３内で灌流液を循環させるよ
うなＵ字型の流路を形成することもできる。A U-shaped flow path for circulating the perfusate in the elongated hole 23 can be formed.
【００２５】[0025]
【発明の効果】以上説明したように、本発明によれば、
発熱を抑制できると共に、破砕作用を向上できる超音波
手術器を提供できる。As described above, according to the present invention,
It is possible to provide an ultrasonic surgical device capable of suppressing heat generation and improving the crushing action.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明に係る硬組織用ホーンを示す断面図であ
る。1 is a cross-sectional view showing the engagement Ru hard tissue horn to the present invention.
【図２】本発明に係る超音波手術器を示す斜視図であ
る。FIG. 2 is a perspective view showing an ultrasonic surgical instrument according to the present invention.
【図３】参考例としての硬組織用ホーンを示す断面図で
ある。FIG. 3 is a cross-sectional view showing a hard tissue horn as a reference example .
【図４】参考例としての硬組織用ホーンを示す断面図で
ある。FIG. 4 is a cross-sectional view showing a horn for hard tissue as a reference example .
【図５】従来の硬組織用ホーンを示す斜視図である。FIG. 5 is a perspective view showing a conventional hard tissue horn.
【図６】図５に示す従来の硬組織用ホーンの断面図であ
る。FIG. 6 is a sectional view of the conventional hard tissue horn shown in FIG.
１ ホーン １ａ 基端部 １ｂ ホーン体部 １ｃ 刃先部 １６ ハンドピース本体 DESCRIPTION OF SYMBOLS 1 Horn 1a Base end 1b Horn body 1c Blade tip 16 Handpiece body
Claims (1)
備え、前記作用部は円錐形状のホーン体部とその先端に
形成された刃先部で構成され、前記刃先部で硬組織を破
砕する超音波手術器において、前記 ホーン体部に軸中心方向に沿って非貫通の長穴を穿
設し、前記刃先部をその中身が完全に詰まった 肉厚構造とし、 前記ホーン体部に前記長穴を穿設することによって、前
記ホーン体部の重量を削減すると共にその表面積を増大
させた ことを特徴とする超音波手術器。1. An operating portion for transmitting generated ultrasonic vibrations, said operating portion being provided on a conical horn body portion and a tip thereof.
Consists of the formed cutting edges, the ultrasonic surgical instrument for fracturing a hard tissue by the cutting edge, bored long holes non-through along the axial center direction in the horn body portion, the said cutting edge By making the horn body part of the horn body part have a thick structure with the contents completely packed ,
Reduce the weight of the horn body and increase its surface area
An ultrasonic surgical instrument characterized by having been operated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5137745A JP2601619B2 (en) | 1993-06-08 | 1993-06-08 | Ultrasonic surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5137745A JP2601619B2 (en) | 1993-06-08 | 1993-06-08 | Ultrasonic surgical instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06343649A JPH06343649A (en) | 1994-12-20 |
| JP2601619B2 true JP2601619B2 (en) | 1997-04-16 |
Family
ID=15205844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5137745A Expired - Fee Related JP2601619B2 (en) | 1993-06-08 | 1993-06-08 | Ultrasonic surgical instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2601619B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101407760B1 (en) * | 2012-11-21 | 2014-06-16 | 이상화 | Incision apparatus for operation |
| CN111265282B (en) * | 2020-01-21 | 2021-07-16 | 江苏邦士医疗科技有限公司 | Ultrasonic surgical handle and ultrasonic surgical equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0529701Y2 (en) * | 1988-11-18 | 1993-07-29 | ||
| JP2500213B2 (en) * | 1991-12-25 | 1996-05-29 | 住友ベークライト株式会社 | Surgical tools |
| JP3067609U (en) * | 1999-09-22 | 2000-04-07 | 琳松 翁 | Remote control health shoes |
-
1993
- 1993-06-08 JP JP5137745A patent/JP2601619B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06343649A (en) | 1994-12-20 |
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