JPH03286755A - Surgical operation device - Google Patents
Surgical operation deviceInfo
- Publication number
- JPH03286755A JPH03286755A JP2087475A JP8747590A JPH03286755A JP H03286755 A JPH03286755 A JP H03286755A JP 2087475 A JP2087475 A JP 2087475A JP 8747590 A JP8747590 A JP 8747590A JP H03286755 A JPH03286755 A JP H03286755A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- cutting blade
- relay
- living body
- rotation
- 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
- 238000005520 cutting process Methods 0.000 claims abstract description 55
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 13
- 238000002955 isolation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 210000000845 cartilage Anatomy 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000000629 knee joint Anatomy 0.000 description 2
- 238000002271 resection Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000001672 ovary Anatomy 0.000 description 1
- 210000004417 patella Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1626—Control means; Display units
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/033—Abutting means, stops, e.g. abutting on tissue or skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/033—Abutting means, stops, e.g. abutting on tissue or skin
- A61B2090/034—Abutting means, stops, e.g. abutting on tissue or skin abutting on parts of the device itself
- A61B2090/035—Abutting means, stops, e.g. abutting on tissue or skin abutting on parts of the device itself preventing further rotation
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、膝関節等における腫瘍や軟骨等を切除する
外科用手術装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a surgical device for removing tumors, cartilage, etc. in knee joints and the like.
［従来の技術］
従来、たとえば膝蓋骨上の腫瘍を切除したり、膝関節か
ら破損した軟骨、骨等を切除する関節手術は、主として
切開法（開放外科）によって行なわれている。[Prior Art] Conventionally, joint surgery to remove, for example, a tumor on the patella or damaged cartilage, bone, etc. from a knee joint has been mainly performed by an incisional method (open surgery).
しかしながら、この手術は、比較的大きな切開を必要と
しており、このため外傷が生じるとともに、苦痛と運動
制限を伴い、完治までに多くの時間がかかってしまう。However, this surgery requires a relatively large incision, which causes trauma, pain and limited movement, and takes a long time to fully heal.
そこで、最近、関節ｆｉ（内視鏡）の観察の下で、関節
を切開せず、関節に小さな穿刺孔を形成し、この穿刺孔
に細長の切刃を挿入して切除を行なう外科用手術装置が
提案されている。Therefore, recently, a surgical procedure has been developed in which a small puncture hole is formed in the joint and a long and thin cutting blade is inserted into the puncture hole to remove the joint under observation using a joint fi (endoscope). A device has been proposed.
この外科用手術装置は、たとえば細長の切刃の回転によ
り目的部位を切除する処置部と、この処置部に連設され
て上記切刃を内蔵のモータにより回転駆動する把持部い
わゆるハンドピースとを備えたもので、特願平１−１８
２２３１号に示されるものがある。This surgical operation device includes, for example, a treatment section that excises a target area by rotating an elongated cutting blade, and a gripping section, so-called hand piece, which is connected to the treatment section and rotates the cutting blade by a built-in motor. With the preparation, patent application No. 1-18
There is one shown in No. 2231.
［発明が解決しようとする課題）
このような外科用手術装置の使用に際し、ハンドピース
の扱い方によっては、切刃が生体組織に押し付けられ、
切刃が生体組織に食い込んでその回転が止まってしまう
ことがある。[Problems to be Solved by the Invention] When using such a surgical device, depending on how the handpiece is handled, the cutting blade may be pressed against the living tissue.
The cutting blade may bite into living tissue and stop rotating.
この場合、そのままではモータに過負荷がかかり、モー
タの寿命に悪影響を与えてしまう。しかも、切刃を無理
に引き抜こうとすると、生体組織に大きなダメージを与
えてしまう。In this case, if left as is, the motor will be overloaded, which will adversely affect the life of the motor. Moreover, if you try to forcefully pull out the cutting blade, you will cause great damage to the living tissue.
この発明は上記の事情を考慮したもので、その目的とす
るところは、切刃が生体組織に食い込んで停止した場合
、その状態を生体組織にダメージを与えることなく容易
かつ迅速に解除することができ、これによりモータの寿
命への悪影響をも解消し得る安全性および信頼性にすぐ
れた外科用手術装置を提供することにある。This invention was developed in consideration of the above circumstances, and its purpose is to easily and quickly release the state when the cutting blade bites into living tissue and stops, without damaging the living tissue. It is an object of the present invention to provide a surgical operating device which is excellent in safety and reliability and can thereby eliminate the adverse effect on the life of the motor.
［課題を解決するための手段］
この発明は、切刃の回転により目的部位を切除する処置
部と、この処置部に連設され上記切刃を内蔵のモータに
より回転駆動する把持部とを備えた外科用手術装置にお
いて、前記モータの動作時に前記切刃の回転具合を検知
する検知手段と、この検知手段が切刃の回転停止を検知
すると同切刃を通常と反対の方向に一定時間だけ回転駆
動する制御手段とを設ける。[Means for Solving the Problems] The present invention includes a treatment section that excises a target region by rotating a cutting blade, and a gripping section that is connected to the treatment section and rotates the cutting blade by a built-in motor. In a surgical operating device, the detection means detects the degree of rotation of the cutting blade when the motor operates, and when the detection means detects that the rotation of the cutting blade has stopped, the detection means moves the cutting blade in the opposite direction for a certain period of time. A control means for driving the rotation is provided.
［作 用コ モータの動作時に切刃の回転具合を検知する。[Production use] Detects the rotation of the cutting blade when the motor is operating.
そして、切刃の回転停止を検知した場合には、切刃を通
常と反対の方向に一定時間だけ回転駆動する。When it is detected that the rotation of the cutting blade has stopped, the cutting blade is rotated in the opposite direction for a certain period of time.
［実施例］ 以下、この発明の一実施例を第１図により説明する。[Example] An embodiment of the present invention will be described below with reference to FIG.
１はコントロールユニットで、このコントロールユニッ
ト１に把持部（以下、ハンドピースと称す）２およびフ
ットスイッチ４が接続される。Reference numeral 1 denotes a control unit, to which a gripping section (hereinafter referred to as a handpiece) 2 and a foot switch 4 are connected.
ハンドピース２は、処置部（図示しない）に連設されて
おり、同処置部の切刃を回転駆動するためのモータ１１
を内蔵し、そのモータ１１の近傍に回転数検知用のホー
ル素子１２を配設するとともに、種類識別用抵抗１３を
備えている。The handpiece 2 is connected to a treatment section (not shown), and has a motor 11 for rotationally driving the cutting blade of the treatment section.
A Hall element 12 for detecting the number of revolutions is disposed near the motor 11, and a resistor 13 for type identification is provided.
ホール素子１２は、モータ１１の回転を磁気的に検知す
るものである。The Hall element 12 magnetically detects the rotation of the motor 11.
種類識別用抵抗１３は、ハンドピース２の種類をコント
ロールユニット１に識別させるためのものである。The type identification resistor 13 is for allowing the control unit 1 to identify the type of handpiece 2.
なお、モータ１１、ホール素子１２、および種類識別用
抵抗１３は、図示していないコネクタにより、コントロ
ールユニット１の端子３３．３Ｂ。The motor 11, the Hall element 12, and the type identification resistor 13 are connected to the terminal 33.3B of the control unit 1 by a connector (not shown).
３９．４０．４０に対して接続および切離しが自在であ
る。It can be freely connected and disconnected from 39.40.40.
上記切刃は、細長で、先端に刃部を有し、回転により目
的部位を切除するものであり、複数種のものが交換可能
に用意されている。The cutting blade is elongated and has a blade portion at the tip, and cuts a target part by rotation, and a plurality of types are exchangeably prepared.
一方、コントロールユニット１は、制御回路２１を備え
、この制御回路２１にアイソレーション回路２２、設定
スイッチ２３、表示ＬＥＤ２４、および上記フットスイ
ッチ３を接続している。On the other hand, the control unit 1 includes a control circuit 21 to which an isolation circuit 22, a setting switch 23, a display LED 24, and the foot switch 3 are connected.
設定スイッチ２３は、モータ１１の回転数を設定するた
めのものである。The setting switch 23 is for setting the rotation speed of the motor 11.
フットスイッチ３は、二連式のもので、右側のペダルの
踏み込みで上記モータ１１の正転（通常の方向の回転）
動作を設定し、左側のペダルの踏み込みでモータ１１の
逆転（通常と反対の方向に回転）動作を設定する働きを
する。The foot switch 3 is a double-barreled type, and when the right pedal is depressed, the motor 11 rotates in the normal direction (rotation in the normal direction).
It functions to set the operation, and to set the motor 11 to reverse (rotate in the opposite direction to normal) operation by depressing the left pedal.
アイソレーション回路２２は、ホトカブラを有し、制御
回路２１側と患者側回路との絶縁状態を確保しながら双
方の信号伝達を行なうものである。The isolation circuit 22 includes a photocoupler, and transmits signals between the control circuit 21 side and the patient side circuit while ensuring an insulated state between the two.
このアイソレーション回路２２に、Ｄ／Ａ（デジタル／
アナログ）変換器２５、スイッチ回路２６、リレー駆動
回路２７、電流検出回路２８、ホール素子接続用端子３
つ、種類識別用端子４０゜４０、およびフットスイッチ
３が接続される。This isolation circuit 22 has a D/A (digital/
analog) converter 25, switch circuit 26, relay drive circuit 27, current detection circuit 28, Hall element connection terminal 3
In addition, a type identification terminal 40° 40 and a foot switch 3 are connected.
Ｄ／Ａ変換器２５は、アイソレーション回路２２を介し
て伝えられる制御回路２１の出力信号をアナログ信号に
変換して出力するものである。The D/A converter 25 converts the output signal of the control circuit 21 transmitted via the isolation circuit 22 into an analog signal and outputs the analog signal.
この出力信号は、上記スイッチ回路２６を介してＮＰＮ
型トランジスタ３１のベースに供給される。This output signal is transmitted to the NPN via the switch circuit 26.
type transistor 31.
トランジスタ３１のコレクタは直流電源端子に接続され
、同トランジスタ３１のエミッタは二極リレー３２の第
１接点の常開側固定端子ＮＯと可動端子ＣＯＭとの間を
介してモータ接続用端子３３．３３の一方に接続される
。さらに、トランジスタ３１のエミッタは、二極リレー
３２の第２接点の常閉側固定端子ＮＣと可動端子ＣＯＭ
との間、およびリレー３４の常開接点を直列に介して上
記モータ接続用端子３３．３３の他方に接続される。The collector of the transistor 31 is connected to a DC power supply terminal, and the emitter of the transistor 31 is connected to a motor connection terminal 33. connected to one side of the Further, the emitter of the transistor 31 is connected to the normally closed side fixed terminal NC and the movable terminal COM of the second contact of the two-pole relay 32.
and to the other of the motor connection terminals 33 and 33 via the normally open contact of the relay 34 in series.
上記第１接点の常閉側固定端子ＮＣおよび第２接点の常
開側固定端子ＮＯが、それぞれ電流検出回路２８に接続
される。The normally closed fixed terminal NC of the first contact and the normally open fixed terminal NO of the second contact are connected to the current detection circuit 28, respectively.
電流検出回路２８は、上記二極リレー３２の各接点およ
びリレー３４の常開接点を通してモータ１１に流れる電
流を検出するものである。The current detection circuit 28 detects the current flowing to the motor 11 through the contacts of the two-pole relay 32 and the normally open contact of the relay 34.
リレー駆動回路２７は、制御回路１１の指令およびフッ
トスイッチ３の踏み込みに応じて二極リレー３２を駆動
するものである。The relay drive circuit 27 drives the two-pole relay 32 in response to commands from the control circuit 11 and depression of the foot switch 3 .
スイッチ回路２６は、フットスイッチ３の踏み込み出力
をアイソレーション回路２２を介して受けたとき、オン
するものである。The switch circuit 26 is turned on when receiving the depression output of the foot switch 3 via the isolation circuit 22.
そして、制御部１１は、電流検出回路２８と共に、モー
タ１１の動作時に処置具の切刃の回転具合を検知する検
知手段として働く。The control unit 11 works together with the current detection circuit 28 as a detection means for detecting the degree of rotation of the cutting blade of the treatment instrument when the motor 11 is operated.
また、制御部１１は、内部のタイマおよびリレー駆動回
路２７と共に、上記検知手段が切刃の回転停止を検知し
たときに同切刃を通常と反対の方向に一定時間（を秒）
だけ回転駆動する制御手段として働く。Further, the control unit 11, together with an internal timer and relay drive circuit 27, moves the cutting blade in the opposite direction for a certain period of time (in seconds) when the detection means detects that the rotation of the cutting blade has stopped.
It acts as a control means to drive the rotation.
つぎに、上記の構成において作用を説明する。Next, the operation in the above configuration will be explained.
設定スイッチ２３で所望の回転数Ｓを設定すると、その
設定回転数Ｓが表示ＬＥＤ２４で表示される。When a desired rotation speed S is set with the setting switch 23, the set rotation speed S is displayed on the display LED 24.
同時に、設定回転数Ｓに対応するデジタル信号が制御回
路１１から出力され、それがアイソレーション回路２２
を介してＤ／Ａ変換器２５に供給される。At the same time, a digital signal corresponding to the set rotation speed S is output from the control circuit 11, and is transmitted to the isolation circuit 22.
The signal is supplied to the D/A converter 25 via.
Ｄ／Ａ変換器２５は、設定回転数Ｓに対応するレベルの
電圧信号を出力する。The D/A converter 25 outputs a voltage signal at a level corresponding to the set rotation speed S.
いま、フットスイッチ３の右側のペダルを踏み込むと、
スイッチ回路２６がオンされるとともに、リレー３４が
作動される。なお、リレー３２については非作動状態が
保たれる。Now, if you press the pedal on the right side of foot switch 3,
Switch circuit 26 is turned on and relay 34 is activated. Note that the relay 32 remains inactive.
スイッチ回路２６がオンすると、Ｄ／Ａ変換器２５の出
力がトランジスタ３１のベースに供給され、トランジス
タ３１がオンする。When the switch circuit 26 is turned on, the output of the D/A converter 25 is supplied to the base of the transistor 31, and the transistor 31 is turned on.
リレー３２の各接点はオフ状態にあり、これにリレー３
４の接点のオンおよびトランジスタ３１のオンが加わる
ことにより、モータ１１に一方向の電流が流れてモータ
１１が正転動作する。Each contact of relay 32 is in the off state, and relay 3
4 and the transistor 31 are turned on, a unidirectional current flows through the motor 11 and the motor 11 rotates in the forward direction.
モータ１１が正転動作すると、処置具の切刃が通常の方
向に回転し、患部の切除が進行する。When the motor 11 rotates in the normal direction, the cutting blade of the treatment tool rotates in the normal direction, and the resection of the affected area progresses.
この場合、設定回転数Ｓが高ければＤ／Ａ変換器２５の
出力電圧のレベルが高くなり、これによりトランジスタ
３１の導通度が大きくなり、モータ１１に高レベルの電
圧が印加される。つまり、モータ１１の回転速度が速く
なる。In this case, if the set rotational speed S is high, the level of the output voltage of the D/A converter 25 becomes high, which increases the degree of conductivity of the transistor 31 and applies a high level voltage to the motor 11. In other words, the rotational speed of the motor 11 becomes faster.
設定回転数Ｓが低ければＤ／Ａ変換器２５の出力電圧の
レベルが低くなり、これによりトランジスタ３１の導通
度が小さくなり、モータ１１への印加電圧が下がる。つ
まり、モータ１１の回転速度が遅くなる。If the set rotational speed S is low, the level of the output voltage of the D/A converter 25 will be low, which will reduce the conductivity of the transistor 31 and reduce the voltage applied to the motor 11. In other words, the rotational speed of the motor 11 becomes slower.
一方、モータ１１の回転がホール素子１２によって磁気
的に検知され、そのホール素子１２の出力信号によりモ
ータ１１の回転数が検出される。On the other hand, the rotation of the motor 11 is magnetically detected by the Hall element 12, and the number of rotations of the motor 11 is detected from the output signal of the Hall element 12.
ここで、第２図のフローチャートに示すように、モータ
１１の回転数が「設定回転数Ｓ子房定値δ」よりも大き
くなると、制御回路２１がＤ／Ａ変換器１５の出力電圧
をｘ （Ｖ）低める制御を実行する。Here, as shown in the flowchart of FIG. 2, when the rotation speed of the motor 11 becomes larger than the "set rotation speed S ovary constant value δ", the control circuit 21 changes the output voltage of the D/A converter 15 to x ( V) Execute lowering control.
反対に、モータ１１の回転数が「設定回転数Ｓ−所定値
δＪよりも小さくなると、制御回路２１がＤ／Ａ変換器
２５の出力電圧をｙ （Ｖ）高める制御を実行する。On the other hand, when the rotation speed of the motor 11 becomes smaller than the set rotation speed S - the predetermined value δJ, the control circuit 21 performs control to increase the output voltage of the D/A converter 25 by y (V).
こうして、モータ１１の回転数つまり切刃の回転数が設
定回転数Ｓに維持される。In this way, the rotation speed of the motor 11, that is, the rotation speed of the cutting blade, is maintained at the set rotation speed S.
ところで、ハンドピース２の扱い方によっては、切刃が
生体組織に押し付けられ、切刃が生体Ｍ織に食い込むこ
とがある。By the way, depending on how the handpiece 2 is handled, the cutting blade may be pressed against the living tissue, and the cutting blade may bite into the living tissue.
この場合、モータ１１にとっては負荷が重くなるため回
転数が低下し、一方では回転数の低下を補おうとしてモ
ータ１１への印加電圧を高める制御が働く。ただし、電
源の容量以上には印加電圧を高めることができず、やが
てモータ１１に流れる電流のみ増加する現象が生じる。In this case, the load on the motor 11 becomes heavy, so the number of rotations decreases, and on the other hand, control is performed to increase the voltage applied to the motor 11 in an attempt to compensate for the decrease in the number of rotations. However, the applied voltage cannot be increased beyond the capacity of the power source, and a phenomenon occurs in which only the current flowing to the motor 11 increases.
しかして、第３図のフローチャートに示すように、モー
タ１１の回転数が設定値ｎよりも下がり、しかも電流検
出回路２８の検出電流つまりモータ１１に流れる電流が
設定値Ａ（たとえば２Ａ）よりも大きくなると、リレー
３２が作動される。As shown in the flowchart of FIG. 3, the rotation speed of the motor 11 falls below the set value n, and the current detected by the current detection circuit 28, that is, the current flowing through the motor 11, becomes lower than the set value A (for example, 2 A). When it becomes large, relay 32 is activated.
リレー３２が作動すると、その各接点がオンし、モータ
１１に流れる電流の向きが反対になり、モータ１１が逆
転動作する。When the relay 32 is activated, its contacts are turned on, the direction of the current flowing through the motor 11 is reversed, and the motor 11 operates in reverse.
モータ１１が逆転動作すると、処置具の切刃が通常と反
対の方向、つまり食い込みを解除する方向に回転する。When the motor 11 rotates in reverse, the cutting blade of the treatment tool rotates in the opposite direction, that is, in the direction of releasing the biting.
したがって、切刃が生体組織に食い込んでその回転が止
まってしまっても（いわゆるロック状！す、その状態を
生体組織にダメージを与えることなく容易かつ迅速に解
除することができる。これにより、モータ１１の寿命へ
の悪影響も解消することができる。Therefore, even if the cutting blade bites into living tissue and stops rotating (a so-called locked state), the state can be easily and quickly released without damaging the living tissue. The adverse effect of No. 11 on the lifespan can also be eliminated.
制御回路２１は、リレー３２を作動してからの経過時間
を内部タイマでカウントしており、作動からｔ秒たとえ
ば０．５秒が経過すると、そこでリレー３２を復帰（作
動停止）する。The control circuit 21 uses an internal timer to count the elapsed time since the relay 32 was activated, and when t seconds, for example, 0.5 seconds have passed since the activation, the relay 32 is restored (deactivated).
すなわち、モータ１１が正転動作し、処置具の切刃が通
常の方向に回転して切除処置が再開される。That is, the motor 11 rotates in the normal direction, the cutting blade of the treatment tool rotates in the normal direction, and the resection treatment is restarted.
ここまでは、フットスイッチ３の右側のペダルを踏み込
んでモータ１１を正転動作させる場合について説明した
が、フットスイッチ３の左側を踏み込んだ場合はモータ
１］が反転動作する。この場合も、切刃のロックに際し
てはモータ１１がｔ秒だけ反対の方向に回転（つまり正
転動作）することになる。Up to this point, a case has been described in which the right pedal of the foot switch 3 is depressed to cause the motor 11 to rotate in the normal direction, but when the left side of the foot switch 3 is depressed, the motor 1 is rotated in the reverse direction. In this case as well, when the cutting blade is locked, the motor 11 rotates in the opposite direction for t seconds (that is, forward rotation operation).
なお、上記実施例において、切刃がロックしたときにそ
の旨を表示ＬＥＤ２４で報知するようにしてもよい。In the above embodiment, when the cutting blade is locked, the display LED 24 may be used to notify that fact.
ところで、切刃のロックを反対方向の回転によって解除
した後、すぐにまた切刃がロックすることがある。By the way, after the cutting blade is unlocked by rotating in the opposite direction, the cutting blade may lock again immediately.
そこで、制御回路１１にカウンタを設けておき、第４図
のフローチャートに示すように、上記カウンタによって
切刃のロックの回数をカウントし、内部タイマのカウン
トによる一定時間Ｔたとえば３秒間のうちにカウンタの
カウント数が設定値ｍたとえばｒ３Ｊに達したとき、表
示ＬＥＤ２４で警告表示を行ない、モータ１１の動作を
停止するようにしてもよい。こうすることにより、安全
性がさらに向上する。Therefore, a counter is provided in the control circuit 11, and as shown in the flowchart of FIG. When the count number reaches a set value m, for example r3J, a warning may be displayed on the display LED 24 and the operation of the motor 11 may be stopped. This further improves safety.
また、切刃の種類によっては、一方向の回転でしか切除
機能を有しないものがあり、この場合は切刃がロックし
てモータ１１の回転が反転しても、ロックの解除がうま
く進まないことがある。Also, depending on the type of cutting blade, there are blades that only have a cutting function when rotated in one direction, and in this case, even if the cutting blade locks and the rotation of the motor 11 is reversed, the lock will not be released properly. Sometimes.
そこで、モータ１１が切除可能な方向に回転していると
きの電流値と切除不能な方向に回転しているときの電流
値との間に大きな差が存在することに看目し、第５図の
フローチャートに示すように、ロックによるモータ１１
の反転に際しての検出電流値が所定値Ｂ以下の場合は反
転の時間を通常のｔ１秒（上記を秒と同じ）に設定し、
検出電流値が大きく変化して所定値Ｂ以上になった場合
は反転の時間を短めのｔ２秒に設定する構成としてもよ
い。Therefore, noting that there is a large difference between the current value when the motor 11 is rotating in the resectable direction and the current value when the motor 11 is rotating in the non-resectable direction, FIG. As shown in the flowchart of
If the detected current value at the time of reversal is less than the predetermined value B, set the reversal time to the normal t1 seconds (the above is the same as seconds),
If the detected current value changes significantly and becomes equal to or greater than the predetermined value B, the reversal time may be set to a shorter value of t2 seconds.
すなわち、反転の時間が短くなれば、正転と反転の繰り
返しが速くなり、結果的にロック解除の効果が高まるこ
とになる。（本来、切除能力は、組織に対する切刃の当
り時間が増すほど、また組織に対して切刃が連続的に接
触する場合よりも断続的に接触する場合はど、高くなる
）。That is, if the reversal time is shortened, the repetition of normal rotation and reversal becomes faster, and as a result, the lock release effect is enhanced. (Originally, the cutting ability increases as the contact time of the cutting blade against the tissue increases, and when the cutting blade contacts the tissue intermittently rather than continuously).
その他、この発明は上記実施例に限定されるものではな
く、要旨を変えない範囲で種々変形実施可能である。In addition, the present invention is not limited to the above-mentioned embodiments, and various modifications can be made without changing the gist.
［発明の効果〕
以上述べたようにこの発明によれば、切刃の回転により
目的部位を切除する処置部と、この処置部に連設され上
記切刃を内蔵のモータにより回転駆動する把持部とを備
えた外科用手術装置において、前記モータの動作時に前
記切刃の回転具合を検知する検知手段と、この検知手段
が切刃の回転停止を検知すると同切刃を通常と反対の方
向に一定時間だけ回転駆動する制御手段とを設けたので
、切刃が生体組織に食い込んで停止した場合、その状態
を生体組織にダメージを与えることなく容易かつ迅速に
解除することができ、これによりモー夕の寿命への悪影
響をも解消し得る安全性および信頼性にすぐれた外科用
手術装置を提供できる。[Effects of the Invention] As described above, according to the present invention, there is provided a treatment section that excises a target area by rotating a cutting blade, and a gripping section that is connected to the treatment section and rotates the cutting blade by a built-in motor. a detection means for detecting the degree of rotation of the cutting blade when the motor is in operation; and a detection means for detecting rotation of the cutting blade in a direction opposite to the normal direction when the detection means detects that the rotation of the cutting blade has stopped. Since the cutting blade is equipped with a control means that rotates for a certain period of time, when the cutting blade bites into living tissue and stops, the state can be easily and quickly released without causing damage to the living tissue. It is possible to provide a surgical operating device with excellent safety and reliability that can eliminate the adverse effect on the lifespan of the patient.
第１図はこの発明の一実施例の構成を示す図、第２図お
よび第３図はそれぞれ同実施例の作用を説明するための
フローチャート、第４図および第５図はそれぞれ同実施
例の変形例の作用を説明するためのフローチャートであ
る。
１・・・コントロールユニット、２・・・ノ＼ンドビー
ス（把持部）、３・・・フットスイッチ、１１・・・モ
ータ、２１・・・制御回路、３２・・・二極リレー ３
４・・−ル−FIG. 1 is a diagram showing the configuration of an embodiment of the present invention, FIGS. 2 and 3 are flowcharts for explaining the operation of the embodiment, and FIGS. 4 and 5 are diagrams showing the structure of the embodiment, respectively. It is a flowchart for explaining the operation of a modified example. DESCRIPTION OF SYMBOLS 1... Control unit, 2... Knot bead (grip part), 3... Foot switch, 11... Motor, 21... Control circuit, 32... Two-pole relay 3
4...-rule-
Claims (1)
置部に連設され上記切刃を内蔵のモータにより回転駆動
する把持部とを備えた外科用手術装置において、前記モ
ータの動作時に前記切刃の回転具合を検知する検知手段
と、この検知手段が切刃の回転停止を検知すると同切刃
を通常と反対の方向に一定時間だけ回転駆動する制御手
段とを設けたことを特徴とする外科用手術装置。A surgical operating device comprising: a treatment section that excises a target region by rotating a cutting blade; and a gripping section that is connected to the treatment section and rotates the cutting blade by a built-in motor, when the motor operates. The cutting blade is characterized by being provided with a detection means for detecting the degree of rotation of the cutting blade, and a control means for driving the cutting blade to rotate in the opposite direction for a certain period of time when the detection means detects that the rotation of the cutting blade has stopped. surgical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2087475A JPH03286755A (en) | 1990-04-03 | 1990-04-03 | Surgical operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2087475A JPH03286755A (en) | 1990-04-03 | 1990-04-03 | Surgical operation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03286755A true JPH03286755A (en) | 1991-12-17 |
Family
ID=13915947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2087475A Pending JPH03286755A (en) | 1990-04-03 | 1990-04-03 | Surgical operation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03286755A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005095281A (en) * | 2003-09-24 | 2005-04-14 | Hitachi Ltd | Puncture system and puncture method |
| US9439651B2 (en) | 2006-05-19 | 2016-09-13 | Ethicon Endo-Surgery, Llc | Methods for cryptographic identification of interchangeable parts for surgical instruments |
| US9554803B2 (en) | 2005-07-26 | 2017-01-31 | Ethicon Endo-Surgery, Llc | Electrically self-powered surgical instrument with manual release |
| US9622744B2 (en) | 2006-05-19 | 2017-04-18 | Ethicon Endo-Surgery, Llc | Electrical surgical instrument with one-handed operation |
| US9662116B2 (en) | 2006-05-19 | 2017-05-30 | Ethicon, Llc | Electrically self-powered surgical instrument with cryptographic identification of interchangeable part |
| US10314583B2 (en) | 2005-07-26 | 2019-06-11 | Ethicon Llc | Electrically self-powered surgical instrument with manual release |
-
1990
- 1990-04-03 JP JP2087475A patent/JPH03286755A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005095281A (en) * | 2003-09-24 | 2005-04-14 | Hitachi Ltd | Puncture system and puncture method |
| US11172930B2 (en) | 2005-07-26 | 2021-11-16 | Cilag Gmbh International | Electrically self-powered surgical instrument with manual release |
| US9554803B2 (en) | 2005-07-26 | 2017-01-31 | Ethicon Endo-Surgery, Llc | Electrically self-powered surgical instrument with manual release |
| US10314583B2 (en) | 2005-07-26 | 2019-06-11 | Ethicon Llc | Electrically self-powered surgical instrument with manual release |
| US9662116B2 (en) | 2006-05-19 | 2017-05-30 | Ethicon, Llc | Electrically self-powered surgical instrument with cryptographic identification of interchangeable part |
| US10314592B2 (en) | 2006-05-19 | 2019-06-11 | Ethicon Llc | Electrically self-powered surgical instrument with cryptographic identification of interchangeable part |
| US9681873B2 (en) | 2006-05-19 | 2017-06-20 | Ethicon Llc | Electrical surgical stapling instrument with tissue compressive force control |
| US9687234B2 (en) | 2006-05-19 | 2017-06-27 | Ethicon L.L.C. | Electrical surgical instrument with optimized power supply and drive |
| US9713473B2 (en) | 2006-05-19 | 2017-07-25 | Ethicon Endo-Surgery, Inc. | Active braking electrical surgical instrument and method for braking such an instrument |
| US9757127B2 (en) | 2006-05-19 | 2017-09-12 | Ethicon Llc | Electrical surgical instrument with optimal tissue compression |
| US9901340B2 (en) | 2006-05-19 | 2018-02-27 | Ethicon Endo-Surgery, Inc. | Active braking electrical surgical instrument and method for braking such an instrument |
| US9675348B2 (en) | 2006-05-19 | 2017-06-13 | Ethicon Llc | Electrical surgical instrument with knife return |
| US9622744B2 (en) | 2006-05-19 | 2017-04-18 | Ethicon Endo-Surgery, Llc | Electrical surgical instrument with one-handed operation |
| US10675022B2 (en) | 2006-05-19 | 2020-06-09 | Ethicon Llc | Electrical surgical instrument with optimal tissue compression |
| US9439651B2 (en) | 2006-05-19 | 2016-09-13 | Ethicon Endo-Surgery, Llc | Methods for cryptographic identification of interchangeable parts for surgical instruments |
| US11172931B2 (en) | 2006-05-19 | 2021-11-16 | Cilag Gmbh International | Electrically self-powered surgical instrument with cryptographic identification of interchangeable part |
| US11759203B2 (en) | 2006-05-19 | 2023-09-19 | Cilag Gmbh International | Electrical surgical instrument with minimum closure distance for staple firing control |
| US11974745B2 (en) | 2006-05-19 | 2024-05-07 | Cilag Gmbh International | Electrically self-powered surgical instrument with cryptographic identification of interchangeable part |
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