JPH0746247Y2 - Tip structure of surgical equipment using ultrasonic vibration energy - Google Patents
Tip structure of surgical equipment using ultrasonic vibration energyInfo
- Publication number
- JPH0746247Y2 JPH0746247Y2 JP1989139933U JP13993389U JPH0746247Y2 JP H0746247 Y2 JPH0746247 Y2 JP H0746247Y2 JP 1989139933 U JP1989139933 U JP 1989139933U JP 13993389 U JP13993389 U JP 13993389U JP H0746247 Y2 JPH0746247 Y2 JP H0746247Y2
- Authority
- JP
- Japan
- Prior art keywords
- tip
- vibration energy
- face
- ultrasonic vibration
- slope
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 ［産業上の利用分野］ この考案は、超音波振動エネルギを利用した手術装置に
使用されるチップに係り、特に目の患部組織を破砕する
チップ構造の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a tip used in a surgical device utilizing ultrasonic vibration energy, and more particularly to improvement of a tip structure for crushing affected tissue of the eye. is there.
［従来技術の説明］ 従来から、例えば白内障になっている目の水晶体を手術
する場合に、その水晶体に細い管状の手術工具であるチ
ップを挿入して、外部に設けた超音波発生装置からの超
音波振動エネルギをそのチップに与え、27KHz〜60KHz程
度の超音波振動エネルギを与えてチップ30をその軸方向
に振動させ、そのチップが軸方向に振動する際の衝撃に
よって患部組織を破砕するようにした手術装置が提供さ
れている。[Description of the Related Art] Conventionally, for example, when operating a crystalline lens of a cataract eye, a tip, which is a thin tubular surgical tool, is inserted into the crystalline lens and an ultrasonic wave generator provided outside is used. Apply ultrasonic vibration energy to the tip, give ultrasonic vibration energy of about 27 KHz to 60 KHz to vibrate the tip 30 in its axial direction, and crush the affected tissue by the impact when the tip vibrates in the axial direction. A surgical device is provided.
この手術装置に使用される従来のチップを第５図に示
し、そのチップを患部に挿入した状態の目の要部断面図
を第６図に示す。チップ10は管状をしており、そのチッ
プ10の先端の端面12は、管の軸方向に対して角度α（一
般に30°〜60°）で切断した同一平面形状として形成さ
れている。チップ10の管の内部に形成される孔14には、
手術の際に外部の吸引装置（図示せず）からの吸引力が
作用する。FIG. 5 shows a conventional tip used in this surgical apparatus, and FIG. 6 shows a cross-sectional view of the main part of the eye in a state where the tip is inserted in the affected area. The tip 10 has a tubular shape, and the end surface 12 at the tip of the tip 10 is formed as a coplanar shape cut at an angle α (generally 30 ° to 60 °) with respect to the axial direction of the tube. In the hole 14 formed inside the tube of the chip 10,
During the operation, suction force from an external suction device (not shown) acts.
手術に際しては、チップ10の端面12を患部に挿入して、
端面12の全域を患部に接触させ、チップ10に超音波振動
エネルギを与える。この超音波振動エネルギの振動によ
って、チップ10の端面12が患部に衝突し、その衝撃によ
って患部が破壊させられる。この際、小片に砕かれて乳
化した患部や、別の管（図示せず）を通して患部に注入
されたリンゲル液が、吸引装置の吸引力によって孔14内
から外部に排出させられる。During surgery, insert the end surface 12 of the tip 10 into the affected area,
The entire area of the end face 12 is brought into contact with the affected area, and ultrasonic vibration energy is applied to the tip 10. Due to the vibration of the ultrasonic vibration energy, the end surface 12 of the tip 10 collides with the affected area, and the impact destroys the affected area. At this time, the affected area crushed into small pieces and emulsified or the Ringer's solution injected into the affected area through another tube (not shown) is discharged from the hole 14 to the outside by the suction force of the suction device.
［考案が解決しようとする問題点］ チップ10に超音波振動エネルギを与えると、チップ10の
端面12の全域で患部である水晶体18を破砕するはずであ
るが、同一平面の端面12を有する従来のチップ構造で
は、端面12のうち先端部16周辺に振動エネルギの大部分
が集中し、端面12のうち先端部16が触れる箇所の水晶体
18だけが破砕される。これに対して、端面12のうち先端
部16の周辺を除く箇所も患部に接触してはいるが、その
箇所に働く振動エネルギが少ないため、その少ない振動
エネルギが患部を破砕せずに、水晶体18を遠ざける方向
に押しやっていた（第６図）。これに対して、端面12の
全域で患部を破砕させようとして、超音波振動エネルギ
を増加させても、先端部16の周辺の破砕力が増加するだ
けであり、端面12の角度αをより鈍角にして超音波振動
エネルギを平均化させようとしても、先端部16の周辺の
破砕力が減少するだけで、端面12全体に破砕力が広がる
ものではなかった。[Problems to be Solved by the Invention] When ultrasonic vibration energy is applied to the tip 10, the crystalline lens 18, which is the affected part, should be crushed in the entire end surface 12 of the tip 10, but the end surface 12 having the same plane is used. In the tip structure, the majority of the vibration energy is concentrated around the tip 16 of the end face 12, and the lens of the end face 12 where the tip 16 touches
Only 18 are crushed. On the other hand, a part of the end face 12 except for the periphery of the tip part 16 is also in contact with the affected part, but since the vibration energy acting on that part is small, the small vibration energy does not crush the affected part, I was pushing 18 away from me (Fig. 6). On the other hand, even if the ultrasonic vibration energy is increased in an attempt to crush the affected part in the entire area of the end face 12, only the crushing force around the tip part 16 increases, and the angle α of the end face 12 becomes more obtuse. Even if an attempt is made to average the ultrasonic vibration energy, the crushing force around the tip portion 16 is reduced, but the crushing force does not spread over the entire end face 12.
このように、従来のチップは、端面12の全域を使って水
晶体18を効率よく破砕することができないという欠点が
あった。しかも、端面１の先端部16周辺にのみ水晶体18
を破砕する振動エネルギの衝撃力が集中するので、この
先端部16によって水晶体18を取り巻いている水晶体嚢20
や、これに近接するガラス体22などを傷付ける恐れがあ
り、手術上の安全性にも問題があった。As described above, the conventional chip has a drawback in that the crystalline lens 18 cannot be efficiently crushed using the entire area of the end face 12. Moreover, the crystalline lens 18 is provided only around the tip 16 of the end face 1.
Since the impact force of the vibration energy for crushing the lens is concentrated, the lens capsule 20 surrounding the lens 18 by the tip portion 16 is concentrated.
Or, there is a risk of damaging the glass body 22 and the like in the vicinity thereof, and there is a problem in safety in operation.
［考案の目的］ この考案は上記問題点を解決するもので、チップの破砕
効率を向上させると共に、手術の安全性の向上を図るこ
とを目的とする。[Object of the Invention] The present invention solves the above problems and aims to improve the crushing efficiency of the tip and improve the safety of surgery.
［問題点を解決する為の手段］ この考案は上記目的を達成する為に、超音波振動エネル
ギが伝達されるものであって、管状でかつ患部に挿入さ
れる端面が管の軸方向に対して斜めに形成された手術装
置のチップにおいて、前記端面の挿入先端部以外の任意
の位置に挿入方向に突出する突起を形成したものであ
る。[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention is to transmit ultrasonic vibration energy, and the end face to be inserted into the affected part is tubular with respect to the axial direction of the tube. In the tip of the surgical device obliquely formed, a projection protruding in the insertion direction is formed at any position other than the insertion tip of the end face.
［作用］ チップの端面において、鋭角に形成される先端部と突起
とが患部に刺さるように衝突する。これによって、振動
エネルギが先端部も突起に分散され、患部の破砕が広い
領域で効率良く行なわれる。[Operation] On the end surface of the tip, the tip and the projection formed at an acute angle collide with each other so as to pierce the affected area. As a result, the vibration energy is also dispersed on the protrusions at the tip portion, and the affected area is efficiently crushed in a wide area.
［実施例］ 次に、この考案に係る実施例を図面に基づいて説明す
る。[Embodiment] Next, an embodiment according to the present invention will be described with reference to the drawings.
第１図はこの考案に係る実施例をチップの先端部分の断
面図、第２図はこのチップの先端部分の斜視図、第３図
はこのチップを患部に挿入した状態を示す断面図であ
る。FIG. 1 is a sectional view of a tip portion of a tip of an embodiment according to the present invention, FIG. 2 is a perspective view of a tip portion of the tip, and FIG. 3 is a sectional view showing a state in which the tip is inserted into an affected area. .
内部に孔36を有する管状のチップ30は、その端面32が、
挿入方向側に一番突き出した先端点Ａを含む斜面32a
と、挿入方向に対し一番奥まった後端点Ｂを含む斜面32
bとの二つの異なった斜面とから形成されている。この
斜面32aと斜面32bとの境界33は、端面32の先端部と後端
部のほぼ中間に形成されている。第１図においてチップ
30の管状の中心軸をＸとすると、斜面32aの中心軸Ｘに
対する角度αを例えば30°に設定し、斜面32bの中心軸
Ｘに対する角度βを前記角度αより大きい角度、例えば
60°に設定する。The tubular tip 30 having the hole 36 inside has an end face 32,
Slope 32a including the tip point A that protrudes most toward the insertion direction
And a slope 32 including the rear end point B that is deepest in the insertion direction.
It is formed from two different slopes with b. A boundary 33 between the inclined surface 32a and the inclined surface 32b is formed substantially in the middle of the front end portion and the rear end portion of the end surface 32. Chip in Figure 1
When the tubular center axis of 30 is X, the angle α of the slope 32a with respect to the center axis X is set to, for example, 30 °, and the angle β of the slope 32b with respect to the center axis X is larger than the angle α, for example,
Set to 60 °.
斜面32bにおいては、後端部Ｂ周辺に複数個の突起34が
中心軸Ｘにほぼ並行に突出して形成される。この突起34
は、例えば三角柱のような突出先端に向かうにつれて断
面が漸次小さくなるような形状とされている。この突起
34は、斜面32bの後端部Ｂ周辺に限ることなく、斜面32b
のその他の領域や全域に設けてもよい。On the inclined surface 32b, a plurality of protrusions 34 are formed around the rear end portion B so as to protrude substantially parallel to the central axis X. This protrusion 34
Has a shape such that the cross-section gradually decreases toward the protruding tip, such as a triangular prism. This protrusion
34 is not limited to the vicinity of the rear end portion B of the slope 32b, and the slope 32b
It may be provided in other areas or the entire area.
前記斜面32aの角度αより斜面32bの角度βを大きくする
のは、斜面32aの先端部38による破砕力を確保するため
に、その先端部38の角度αを比較的小さく設定すること
が必要なことと、斜面32bに設けられる突起34の先端を
より挿入側の前方に配置して破砕効率を向上させるため
である。To make the angle β of the slope 32b larger than the angle α of the slope 32a, it is necessary to set the angle α of the tip 38 relatively small in order to secure the crushing force by the tip 38 of the slope 32a. This is because the tip end of the protrusion 34 provided on the slope 32b is arranged further forward of the insertion side to improve the crushing efficiency.
以上のように構成されたチップ30では、その端面32を患
部の水晶体18に挿入して、これに超音波振動エネルギを
与えると、従来のチップと同様に、鋭利箇所である斜面
32aの先端部38が水晶体18を破砕する。この他に、斜面3
2bの後端部Ｂ周辺に設けられた突起34の先端も鋭利な形
状であるので、第３図に示すように、その突起34の先端
で水晶体18を破砕する。即ち、端面32のうち先端部38以
外の箇所に鋭利な突起34を形成したので、チップ30の振
動による衝撃力を先端部38だけでなく突起34を介して水
晶体18を破砕するようにして、端面32の広い範囲に振動
エネルギを分散し、チップ30の破砕効率を向上させるこ
とができる（第３図）。In the tip 30 configured as described above, the end surface 32 is inserted into the lens 18 of the affected area, and ultrasonic vibration energy is applied to this, like the conventional tip, the sloped surface is a sharp point.
The tip portion 38 of 32a fractures the lens 18. Besides this, slope 3
Since the tip of the projection 34 provided around the rear end portion B of 2b also has a sharp shape, the lens 18 is crushed by the tip of the projection 34, as shown in FIG. That is, since the sharp projection 34 is formed on the end surface 32 at a position other than the tip 38, the impact force due to the vibration of the tip 30 is crushed not only through the tip 38 but also through the projection 34 to crush the lens 18. Vibration energy can be dispersed over a wide range of the end face 32 to improve the crushing efficiency of the tip 30 (FIG. 3).
このように、チップ30の破砕効率を向上させたことによ
って、超音波振動エネルギを小さくしても、同じ破砕能
力を発揮できる。この結果、超音波振動エネルギを小さ
くして、先端の先端部38から発生する振動の衝撃力を小
さくすることができるので、水晶体18を取り巻いている
水晶体嚢20やこれに近接するガラス体22などの損傷の発
生比率をより低下させることができ、手術の安全性の向
上を図ることができる。In this way, by improving the crushing efficiency of the tip 30, even if the ultrasonic vibration energy is reduced, the same crushing ability can be exhibited. As a result, the ultrasonic vibration energy can be reduced and the impact force of the vibration generated from the tip portion 38 at the tip can be reduced, so that the lens capsule 20 surrounding the lens 18 and the glass body 22 adjacent thereto can be used. It is possible to further reduce the rate of occurrence of damage to the patient and improve the safety of surgery.
また、この突起34の先端は鋭角であるので、チップ30の
振動時に突起34は水晶体18に突き刺さるので、端面32の
うち先端部38以外の箇所（後端点Ｂを含む斜面32b）が
水晶体18を遠ざける方向に押しやるという従来の欠点を
無くすことができる。Further, since the tip end of the protrusion 34 is an acute angle, the protrusion 34 sticks into the crystalline lens 18 when the tip 30 vibrates, so that a portion of the end face 32 other than the front end portion 38 (the sloped surface 32b including the rear end point B) does not contact the crystalline lens 18. It is possible to eliminate the conventional drawback of pushing in the direction of moving away.
尚、前記実施例ではチップ30の端面32を傾きの異なる斜
面32a、斜面32bの２面に形成したが、本考案はこれに限
ることなく、例えば第４図に示すように、端面40は先端
点Ａから後端点Ｂに向かうにしたがって、各点における
接線の傾き（α，β，γ）が次第に大きくなるような曲
面状に形成してもよい。Although the end face 32 of the chip 30 is formed into two faces, that is, the slope 32a and the slope 32b having different inclinations in the above-mentioned embodiment, the present invention is not limited to this, and the end face 40 is a tip as shown in FIG. 4, for example. The curved surface may be formed so that the inclination (α, β, γ) of the tangent line at each point gradually increases from the point A toward the rear end point B.
［考案の効果］ 以上説明したように、本願考案に係る超音波振動エネル
ギを利用した手術装置のチップによれば、チップの端面
において先端部以外の他の箇所に複数の突起を形成した
もので、その先端部と突起によって水晶体を破砕して、
チップの破砕効率を向上させるようにしたものである。[Effects of the Invention] As described above, according to the tip of the surgical operation apparatus using ultrasonic vibration energy according to the present invention, a plurality of protrusions are formed on the end surface of the tip other than the tip portion. , Crush the lens with its tip and protrusions,
It is designed to improve the crushing efficiency of chips.
また、チップの破砕能力を保ったまま超音波振動エネル
ギを小さくすることができるので、チップの先端部によ
る患部の周辺部位の損傷の発生比率を低下させ、手術の
安全性の向上を図ることができる。In addition, since ultrasonic vibration energy can be reduced while maintaining the crushing ability of the tip, it is possible to reduce the occurrence rate of damage to the surrounding area of the affected area by the tip of the tip and improve the safety of surgery. it can.
第１図はこの考案に係る実施例のチップの先端部分の断
面図、第２図はこのチップの先端部分の斜視図、第３図
はこのチップを患部に挿入した状態を示す断面図、第４
図は別の変形例のチップの側面図、第５図は従来例のチ
ップの先端部分の断面図、第６図は従来例のチップを患
部に挿入した状態を示す断面図である。 30……チップ、32……端面、32a,32b……斜面、34……
突起、38……先端部、40……端面。FIG. 1 is a sectional view of a tip portion of a tip according to an embodiment of the present invention, FIG. 2 is a perspective view of a tip portion of the tip, and FIG. 3 is a sectional view showing a state in which the tip is inserted into an affected area. Four
FIG. 5 is a side view of a tip of another modified example, FIG. 5 is a cross-sectional view of the tip of the conventional tip, and FIG. 30 …… Chip, 32 …… End, 32a, 32b …… Slope, 34 ……
Protrusion, 38 ... Tip, 40 ... End face.
Claims (3)
って、管状でかつ患部に挿入される端面が管の軸方向に
対して斜めに形成された手術装置のチップにおいて、前
記端面の挿入先端部以外の任意の位置に挿入方向に突出
する突起を形成したことを特徴とする超音波振動エネル
ギを利用した手術装置のチップ構造。1. A tip of a surgical apparatus for transmitting ultrasonic vibration energy, wherein the end face to be inserted into a diseased part is formed obliquely to the axial direction of the pipe, and the end face is inserted. A tip structure of a surgical device utilizing ultrasonic vibration energy, characterized in that a protrusion protruding in the insertion direction is formed at an arbitrary position other than the distal end portion.
記突起を形成した斜面との傾きの異なる２つの斜面を有
し、先端部を含む斜面と管の軸とのなす角度が突起を形
成した斜面と管の軸とのなす角度よりも小さいものとし
たことを特徴とする請求項１記載の超音波振動エネルギ
を利用した手術装置のチップ構造。2. The end face has two slopes having different inclinations between the slope including the insertion tip and the slope where the protrusion is formed, and the angle formed between the slope including the tip and the axis of the pipe is the protrusion. The tip structure of the surgical operation apparatus using ultrasonic vibration energy according to claim 1, wherein the angle is smaller than the angle formed by the formed slope and the axis of the tube.
る端面と管の軸とのなす角度が突起を形成した箇所にお
ける端面と管の軸とのなす角よりも小さいものとしたこ
とを特徴とする請求項１記載の超音波振動エネルギを利
用した手術装置のチップ構造。3. The end face is formed in a curved shape, and the angle between the end face at the tip and the axis of the pipe is smaller than the angle between the end face and the axis of the pipe at the location where the protrusion is formed. The tip structure of a surgical device using ultrasonic vibration energy according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989139933U JPH0746247Y2 (en) | 1989-12-04 | 1989-12-04 | Tip structure of surgical equipment using ultrasonic vibration energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989139933U JPH0746247Y2 (en) | 1989-12-04 | 1989-12-04 | Tip structure of surgical equipment using ultrasonic vibration energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0378522U JPH0378522U (en) | 1991-08-08 |
| JPH0746247Y2 true JPH0746247Y2 (en) | 1995-10-25 |
Family
ID=31686949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989139933U Expired - Lifetime JPH0746247Y2 (en) | 1989-12-04 | 1989-12-04 | Tip structure of surgical equipment using ultrasonic vibration energy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0746247Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009095662A (en) * | 2007-09-28 | 2009-05-07 | Nidek Co Ltd | Handpiece for ultrasonic surgery and chip for ultrasonic surgery |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009240622A (en) * | 2008-03-31 | 2009-10-22 | Hideharu Fukasaku | Phacoemulsification chip |
| DE102015207150A1 (en) | 2015-04-20 | 2016-11-03 | Geuder Ag | Hollow needle for an ophthalmological instrument |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62292157A (en) * | 1986-06-12 | 1987-12-18 | オリンパス光学工業株式会社 | Ultrasonic heating remedy apparatus |
| JP2607601B2 (en) * | 1988-03-14 | 1997-05-07 | オリンパス光学工業株式会社 | Ultrasound therapy equipment |
-
1989
- 1989-12-04 JP JP1989139933U patent/JPH0746247Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009095662A (en) * | 2007-09-28 | 2009-05-07 | Nidek Co Ltd | Handpiece for ultrasonic surgery and chip for ultrasonic surgery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0378522U (en) | 1991-08-08 |
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