JP3213927U - Surgical instruments - Google Patents

Surgical instruments Download PDF

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JP3213927U
JP3213927U JP2017600066U JP2017600066U JP3213927U JP 3213927 U JP3213927 U JP 3213927U JP 2017600066 U JP2017600066 U JP 2017600066U JP 2017600066 U JP2017600066 U JP 2017600066U JP 3213927 U JP3213927 U JP 3213927U
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surgical instrument
swivel
rack
action
instrument
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ワンドン チェン
ワンドン チェン
トゥォ シュ
トゥォ シュ
カイフェン フー
カイフェン フー
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Touchstone International Medical Science Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115—Staplers for performing anastomosis in a single operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115—Staplers for performing anastomosis in a single operation
    • A61B17/1155—Circular staplers comprising a plurality of staples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00473—Distal part, e.g. tip or head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B2017/1132—End-to-end connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2926—Details of heads or jaws
    • A61B2017/2927—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
    • A61B2017/2929—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft with a head rotatable about the longitudinal axis of the shaft

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  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physiology (AREA)
  • Surgical Instruments (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

【課題】外科手術器具の閉鎖及びコッキング状態での誤回転が防止され、ヒト組織に対する損傷が回避され、手術のリスクが減少する外科手術器具を提供する。【解決手段】器具本体１０、旋回部２０、コッキングハンドル及びコッキングハンドルと協働するラックを備える外科手術器具であって、ラックは、コッキングハンドルの作用により外科手術器具の基端に沿って先端へ移動する。外科手術器具は、旋回部作用部材１０４をさらに備える。外科手術器具が初期状態に置かれている場合には、旋回部２０は、軸線を中心に回転可能な状態に配置される。ラックと旋回部作用部材とは接触し、且つ旋回部作用部材に対して外科手術器具の基端方向への付勢力が印加される。外科手術器具が閉鎖状態及びコッキング状態に置かれている場合には、ラックと旋回部作用部材とは分離し、旋回部作用部材が旋回部の内壁面に接触し、少なくとも旋回部の径方向において旋回部に対して張力が印加される。【選択図】図４The present invention provides a surgical instrument that prevents the surgical instrument from being closed and erroneously rotated in a cocking state, avoids damage to human tissue, and reduces the risk of surgery. A surgical instrument comprising an instrument body, a swivel unit, a cocking handle and a rack cooperating with the cocking handle, wherein the rack is moved to the distal end along the proximal end of the surgical instrument by the action of the cocking handle. Moving. The surgical instrument further includes a swivel action member 104. When the surgical instrument is placed in the initial state, the swivel unit 20 is disposed so as to be rotatable about the axis. The rack and the swivel working member are in contact with each other, and a biasing force in the proximal direction of the surgical instrument is applied to the swivel working member. When the surgical instrument is placed in a closed state and a cocking state, the rack and the swivel working member are separated, the swivel working member contacts the inner wall surface of the swivel, and at least in the radial direction of the swivel Tension is applied to the swivel unit. [Selection] Figure 4

Description

本願は、２０１４年１２月３０日付けの中国出願（出願番号２０１４１０８４１６３８．８、発明名称「外科手術器具」）の優先権を主張するものであり、当該中国出願の内容のすべてが引用により本願に含まれる。   This application claims the priority of the Chinese application filed on December 30, 2014 (application number 2014108841638.8, invention name “surgical instrument”), the entire contents of which are incorporated herein by reference. included.

本考案は、医療機器の製造技術分野に関し、特に外科手術器具に関する。   The present invention relates to the technical field of manufacturing medical devices, and more particularly to surgical instruments.

ステープラは、生体組織に対して外科手術を行う際に頻繁に使用される医療機器であり、医学において、従来の手縫い作業の代わりに使用される器具である。先端技術の発展及び生産技術の改善が進んでいる中、現在、臨床用のステープラは、品質が高く且つ使いやすく、精密性及び締まり具合が適切である。とりわけ、ステープラの縫合スピードが速く、操作が簡単であり、また、副作用や手術による合併症などが少ないという利点がある。場合によっては、これまで切除できなかった腫瘍に対し病変箇所の切除が可能であり、国内外の臨床外科医に愛顧且つ推奨されている。   A stapler is a medical device that is frequently used when performing a surgical operation on a living tissue, and is an instrument that is used in medicine instead of a conventional hand-sewn operation. With the development of advanced technology and the improvement of production technology, clinical staplers are currently high quality, easy to use, and appropriate in precision and tightness. In particular, the stapler has a fast stitching speed, is easy to operate, and has few advantages such as side effects and surgical complications. In some cases, it is possible to remove a lesion site for a tumor that could not be excised so far, and it has been patronized and recommended by domestic and foreign clinical surgeons.

内視鏡外科手術において、内視鏡外科切断ステープラは通常、消化管における食道、胃、十二指腸、小腸、結腸、直腸、盲腸、胆嚢、膵臓及び脾臓等の切断縫合手術に用いられ、また、呼吸器における肺及び気管等の切断縫合手術や泌尿生殖器系における膀胱及び子宮等の切断縫合手術にも用いられる。手術時間が短縮され、手術の質が向上する。   In endoscopic surgery, an endoscopic surgical cutting stapler is usually used for cutting and suturing operations such as esophagus, stomach, duodenum, small intestine, colon, rectum, cecum, gallbladder, pancreas and spleen in the digestive tract, and breathing. It is also used for cutting and suturing operations such as lungs and trachea in the organs, and cutting and suturing operations such as bladder and uterus in the urogenital system. The operation time is shortened and the quality of the operation is improved.

本考案に係る実施形態の目的は、外科手術器具を提供することにある。   An object of an embodiment according to the present invention is to provide a surgical instrument.

上記の目的を実現すべく、本考案の実施形態における外科手術器具は、
器具本体と、前記器具本体と接続された旋回部と、前記器具本体とピボット接続されたコッキングハンドルと、
前記コッキングハンドルと協働し、前記コッキングハンドルの作用により前記外科手術器具の基端に沿って先端へ移動可能なラックとを備えている。
前記外科手術器具は、旋回部作用部材をさらに備えている。
前記外科手術器具が初期状態に置かれている場合には、前記旋回部は、軸線を中心に回転可能な状態に配置されている。前記ラックと前記旋回部作用部材とは接触し、且つ前記旋回部作用部材に対して前記外科手術器具の基端方向への付勢力を印加する。
前記外科手術器具が閉鎖状態及びコッキング状態に置かれている場合には、前記ラックと前記旋回部作用部材とは分離し、前記旋回部作用部材が前記旋回部の内壁面に接触し、少なくとも前記旋回部の径方向において前記旋回部に対して張力を印加する。 In order to achieve the above object, the surgical instrument in the embodiment of the present invention is:
An instrument body, a pivot connected to the instrument body, a cocking handle pivotally connected to the instrument body,
A rack that cooperates with the cocking handle and is movable to the distal end along the proximal end of the surgical instrument by the action of the cocking handle.
The surgical instrument further includes a swivel working member.
When the surgical instrument is in an initial state, the swivel portion is disposed so as to be rotatable about an axis. The rack and the swivel working member are in contact with each other, and a biasing force in the proximal direction of the surgical instrument is applied to the swivel working member.
When the surgical instrument is placed in a closed state and a cocking state, the rack and the swivel action member are separated, the swivel action member contacts an inner wall surface of the swivel, and at least the A tension is applied to the swivel portion in the radial direction of the swivel portion.

本考案の一実施形態のさらなる改良として、前記外科手術器具が初期状態に置かれている場合、前記旋回部作用部材と前記旋回部の内壁面との間には隙間が設けられる。   As a further improvement of an embodiment of the present invention, when the surgical instrument is placed in an initial state, a gap is provided between the swivel working member and the inner wall surface of the swivel.

本考案の一実施形態のさらなる改良として、前記器具本体内には、前記旋回部作用部材と協働する弾性部材がさらに取り付けられている。前記外科手術器具が初期状態に置かれている場合、前記弾性部材は、前記旋回部作用部材に対して終始前記外科手術器具の先端方向への付勢力を印加している。   As a further improvement of an embodiment of the present invention, an elastic member that cooperates with the swivel member acting member is further attached in the instrument body. When the surgical instrument is placed in the initial state, the elastic member applies a biasing force in the distal direction of the surgical instrument from the beginning to the end with respect to the swivel working member.

本考案の一実施形態のさらなる改良として、前記ラックの先端には、第１当接面が設けられ、前記旋回部作用部材の基端には、第２当接面が設けられている。前記外科手術器具が初期状態に置かれている場合、前記第１当接面と前記第２当接面とは当接している。   As a further improvement of one embodiment of the present invention, a first abutting surface is provided at the tip of the rack, and a second abutting surface is provided at the proximal end of the swivel member acting member. When the surgical instrument is placed in the initial state, the first contact surface and the second contact surface are in contact.

本考案の一実施形態のさらなる改良として、前記器具本体内には、前記外科手術器具の先端に面する第３当接面が設けられている。前記旋回部作用部材には、前記外科手術器具の基端に面する第４当接面が設けられている。前記弾性部材は、前記第３当接面と前記第４当接面との間に挟持されている。   As a further improvement of one embodiment of the present invention, a third abutment surface facing the distal end of the surgical instrument is provided in the instrument body. The swivel working member is provided with a fourth contact surface facing the proximal end of the surgical instrument. The elastic member is sandwiched between the third contact surface and the fourth contact surface.

本考案の一実施形態のさらなる改良として、前記旋回部作用部材は、前記旋回部の径方向に延在し、少なくとも２つの作用部を有する。前記器具本体には、前記作用部と協働する位置決め孔が設けられている。前記作用部は、前記位置決め孔内に移動可能であり、且つ前記外科手術器具が閉鎖状態及びコッキング状態に置かれている場合、前記旋回部の径方向において前記位置決め孔を貫通して前記旋回部の内壁面と当接している。   As a further improvement of an embodiment of the present invention, the swivel part working member extends in a radial direction of the swivel part and has at least two working parts. The instrument body is provided with a positioning hole that cooperates with the action portion. The action portion is movable in the positioning hole and penetrates the positioning hole in the radial direction of the turning portion when the surgical instrument is placed in a closed state and a cocking state. In contact with the inner wall surface.

本考案の一実施形態のさらなる改良として、前記旋回部作用部材の先端端面は、前記位置決め孔の、前記外科手術器具の基端に面する端面と平行になっている。前記旋回部作用部材の基端端面は、前記位置決め孔の、前記外科手術器具の先端に面する端面と平行になっている。   As a further improvement of an embodiment of the present invention, the distal end surface of the swivel working member is parallel to the end surface of the positioning hole facing the proximal end of the surgical instrument. The proximal end surface of the swivel working member is parallel to the end surface of the positioning hole facing the distal end of the surgical instrument.

本考案の一実施形態のさらなる改良として、前記２つの作用部の延在方向は逆である。   As a further improvement of an embodiment of the present invention, the extending directions of the two working parts are opposite.

本考案の一実施形態のさらなる改良として、前記作用部と前記旋回部の内壁面との接触面の各部分は、前記旋回部の内壁面と同時に接触又は分離するように設けられている。   As a further improvement of an embodiment of the present invention, each part of the contact surface between the action part and the inner wall surface of the swivel part is provided so as to contact or separate simultaneously with the inner wall surface of the swivel part.

本考案の一実施形態のさらなる改良として、前記器具本体内には、ラック阻止ブロックがさらに設けられている。前記ラックには、前記ラック阻止ブロックと協働する係止ブロックが設けられている。前記外科手術器具が初期状態に置かれている場合には、前記ラック阻止ブロックは、前記係止ブロックの先端に位置し、前記ラックの、前記外科手術器具の先端への移動を抑制する。前記外科手術器具が閉鎖状態に置かれている場合には、前記ラック阻止ブロックは、前記係止ブロックの基端に位置し、前記ラックの、前記外科手術器具の基端への移動を抑制する。   As a further improvement of an embodiment of the present invention, a rack blocking block is further provided in the instrument body. The rack is provided with a locking block that cooperates with the rack blocking block. When the surgical instrument is in an initial state, the rack blocking block is located at the distal end of the locking block, and suppresses the movement of the rack to the distal end of the surgical instrument. When the surgical instrument is placed in a closed state, the rack blocking block is located at the proximal end of the locking block and restrains the rack from moving to the proximal end of the surgical instrument. .

従来技術と比較すれば、本考案に係る外科手術器具は、閉鎖状態及びコッキング状態に置かれている際に、前記外科手術器具における旋回部の円周方向での相対位置を堅固に固定させることができ、これにより、旋回部が外科手術器具の閉鎖及びコッキング状態での誤回転が防止され、ヒト組織に対する損傷が回避され、手術のリスクが減少する。   Compared with the prior art, when the surgical instrument according to the present invention is placed in a closed state and a cocking state, the relative position in the circumferential direction of the swivel portion in the surgical instrument is firmly fixed. This prevents the swivel from closing the surgical instrument and mis-rotating in the cocking state, avoiding damage to human tissue and reducing the risk of surgery.

本考案の実施形態における外科手術器具の局所正面図である。It is a local front view of the surgical instrument in the embodiment of the present invention. 本考案の係る実施形態における外科手術器具の初期状態での図１Ａ−Ａ断面図である。1A is a cross-sectional view of FIG. 1A-A in an initial state of a surgical instrument according to an embodiment of the present invention. 本考案の実施形態における外科手術器具の初期状態での内部構成概略図である。It is an internal configuration schematic diagram in the initial state of the surgical instrument in the embodiment of the present invention. 本考案の実施形態における外科手術器具の閉鎖状態及びコッキング状態での図１Ａ−Ａ断面図である。1A is a cross-sectional view of FIG. 1A-A in a closed state and a cocking state of a surgical instrument according to an embodiment of the present invention. 本考案の実施形態における外科手術器具の閉鎖状態及びコッキング状態での内部構成概略図である。It is the internal structure schematic in the closed state and cocking state of the surgical instrument in embodiment of this invention.

以下、図面に示された具体的な実施形態と併せて、本考案について詳細に説明する。なお、これらの実施形態は、本考案を限定するものではない。当業者がこれらの実施形態に基づいてなされた構造、方法又は機能上の変換のすべては、本考案の保護範囲内に含まれるものである。   Hereinafter, the present invention will be described in detail in conjunction with specific embodiments shown in the drawings. In addition, these embodiment does not limit this invention. All structural, method or functional changes made by those skilled in the art based on these embodiments are intended to be within the scope of protection of the present invention.

本明細書に記載されている位置及び方向を明確に説明するために、機器の操作者を基準として、操作者に近い側が基端であり、操作者から離れた側が先端である。   In order to clearly describe the positions and directions described in the present specification, the side closer to the operator is the base end and the side away from the operator is the front end, based on the operator of the device.

本考案の実施形態において、内視鏡外科切断ステープラを例として本考案に係る外科手術器具について具体的に説明する。以下の実施形態に記載される技術的精神は、ほかの形式のステープラに代替されて利用されることができる。   In the embodiment of the present invention, a surgical instrument according to the present invention will be specifically described by taking an endoscopic surgical cutting stapler as an example. The technical spirit described in the following embodiments can be used in place of other types of staplers.

図１に示すように、本考案の実施形態において、外科手術器具は、器具本体１０と、器具本体１０と接続された旋回部２０と、器具本体１０とピボット接続されたコッキングハンドル３０とを備えている。   As shown in FIG. 1, in an embodiment of the present invention, a surgical instrument includes an instrument body 10, a pivot 20 connected to the instrument body 10, and a cocking handle 30 pivotally connected to the instrument body 10. ing.

器具本体１０の先端には、ステープルアンビル、ステープルカートリッジ及びカッターを含むステープルカートリッジアセンブリがさらに設けられている。   The distal end of the instrument body 10 is further provided with a staple cartridge assembly including a staple anvil, a staple cartridge, and a cutter.

本実施形態において、外科手術器具が初期状態に置かれている際には、ステープルアンビル及びステープルカートリッジは開いた状態に置かれ、カッターはステープルカートリッジアセンブリの基端に位置する。外科手術器具が閉鎖状態に置かれている際には、ステープルアンビル及びステープルカートリッジは閉鎖され、その間に生体組織が堅固に挟まれ、カッターは、初期状態に対して外科手術器具の先端へ一定の距離を移動したが、全体的には未だステープルカートリッジアセンブリの基端に位置する。外科手術器具がコッキング状態に置かれている際には、ステープルアンビル及びステープルカートリッジは閉鎖状態に保たれ、カッターは、ステープルカートリッジアセンブリの基端から先端へ移動して挟まれた組織を切断・縫合し、また、ステープルカートリッジアセンブリの先端において位置決めされて移動を停止することができる。   In this embodiment, when the surgical instrument is in the initial state, the staple anvil and staple cartridge are left open and the cutter is located at the proximal end of the staple cartridge assembly. When the surgical instrument is placed in the closed state, the staple anvil and staple cartridge are closed while the tissue is firmly clamped between them, and the cutter is fixed to the tip of the surgical instrument relative to the initial state. Although moved the distance, it is still generally at the proximal end of the staple cartridge assembly. When the surgical instrument is in the cocking state, the staple anvil and the staple cartridge are kept closed, and the cutter moves from the proximal end to the distal end of the staple cartridge assembly to cut and suture the sandwiched tissue. It can also be positioned at the tip of the staple cartridge assembly to stop moving.

図２〜図５に示すように、器具本体１０内には、ラック１０２が設けられている。ラック１０２は、コッキングハンドル３０の作用により外科手術器具の基端から先端方向へ移動することができる。   As shown in FIGS. 2 to 5, a rack 102 is provided in the instrument body 10. The rack 102 can be moved in the distal direction from the proximal end of the surgical instrument by the action of the cocking handle 30.

外科手術器具は、旋回部作用部材１０４をさらに備えている。   The surgical instrument further includes a swivel working member 104.

図２及び図３を参照されたい。外科手術器具の初期状態において、旋回部２０は、軸線を中心に回転可能な状態に配置され、ラック１０２は、旋回部作用部材１０４と接触し、且つ旋回部作用部材１０４に対して外科手術器具の基端への付勢力を印加する。このとき、旋回部作用部材１０４と旋回部の内壁面２０２との間に隙間が設けられてよく、これにより、旋回部２０は、軸線を中心に回転することができる。もちろん、旋回部作用部材１０４は、旋回部の内壁面２０２と僅かに接触してもよいが、旋回部２０の軸線を中心とする回転に影響を与えず、単に回転に必要な付勢力が旋回部作用部材１０４と旋回部の内壁面２０２との間に隙間が設けられている場合より僅かに大きい。   Please refer to FIG. 2 and FIG. In the initial state of the surgical instrument, the swivel unit 20 is disposed so as to be rotatable about an axis, and the rack 102 is in contact with the swivel unit action member 104 and the surgical instrument with respect to the swivel unit action member 104. Apply urging force to the base end of At this time, a gap may be provided between the turning portion action member 104 and the inner wall surface 202 of the turning portion, and thereby the turning portion 20 can rotate around the axis. Of course, the swivel action member 104 may be slightly in contact with the inner wall surface 202 of the swivel, but it does not affect the rotation about the axis of the swivel 20, and the urging force necessary for the rotation is simply swiveled. It is slightly larger than the case where a gap is provided between the part action member 104 and the inner wall surface 202 of the swivel part.

さらに、ラック１０２の先端には、第１当接面１０２２が設けられ、旋回部作用部材１０４の基端には、第２当接面１０４２が設けられている。外科手術器具が初期状態に置かれている場合、第１当接面１０２２と第２当接面１０４２とは当接している。   Further, a first contact surface 1022 is provided at the tip of the rack 102, and a second contact surface 1042 is provided at the proximal end of the swivel unit action member 104. When the surgical instrument is placed in the initial state, the first contact surface 1022 and the second contact surface 1042 are in contact with each other.

第１当接面１０２２は、外科手術器具の基端に面して設けられ、第２当接面１０４２は、外科手術器具の先端に面して設けられている。   The first contact surface 1022 is provided to face the proximal end of the surgical instrument, and the second contact surface 1042 is provided to face the distal end of the surgical instrument.

第１当接面１０２２と第２当接面１０４２とは平行になっており、また、第１当接面１０２２及び第２当接面１０４２のいずれも旋回部２０の軸線と垂直になっている。   The first contact surface 1022 and the second contact surface 1042 are parallel to each other, and both the first contact surface 1022 and the second contact surface 1042 are perpendicular to the axis of the turning unit 20. .

図４及び図５を参照されたい。外科手術器具が閉鎖状態及びコッキング状態に置かれている場合、ラック１０２と旋回部作用部材１０４とは分離し、旋回部作用部材１０４が旋回部の内壁面２０２に接触し、少なくとも旋回部２０の径方向において旋回部２０に対して張力を印加する。   Please refer to FIG. 4 and FIG. When the surgical instrument is placed in the closed state and the cocking state, the rack 102 and the swivel action member 104 are separated from each other, the swivel action member 104 contacts the inner wall surface 202 of the swivel, and at least the swivel 20 A tension is applied to the swivel unit 20 in the radial direction.

張力は、旋回部２０が軸線を中心に順調に回転することができないように保持することができ、又は、旋回部２０と旋回部作用部材１０４との間の摩擦力に抗して旋回部２０を回転させるための、初期状態におけるより大きい外力作用が必要となる。ここでの張力は、少なくとも誤操作の際に旋回部を回転させることができない程度に達せばよいことを理解されたい。   The tension can be held so that the swivel unit 20 cannot rotate smoothly around the axis, or the swivel unit 20 resists the frictional force between the swivel unit 20 and the swivel action member 104. A larger external force action in the initial state is required to rotate the motor. It should be understood that the tension here needs to reach at least an extent that the swivel unit cannot be rotated in the event of an erroneous operation.

図２〜図５をさらに参照されたい。器具本体１０内には、旋回部作用部材１０４と協働する弾性部材１０６がさらに設けられている。本実施形態では、弾性部材１０６は、圧縮ばねである。   Further reference is made to FIGS. In the instrument main body 10, an elastic member 106 that cooperates with the swivel unit acting member 104 is further provided. In the present embodiment, the elastic member 106 is a compression spring.

器具本体内１０には、外科手術器具の先端に面する第３当接面１０８が設けられている。旋回部作用部材１０４には、外科手術器具の基端に面する第４当接面１０４４が設けられている。弾性部材１０６は、第３当接面１０８と第４当接面１０４４との間に挟持されている。   A third abutting surface 108 facing the distal end of the surgical instrument is provided in the instrument body 10. The swivel action member 104 is provided with a fourth contact surface 1044 facing the proximal end of the surgical instrument. The elastic member 106 is sandwiched between the third contact surface 108 and the fourth contact surface 1044.

第３当接面１０８と第４当接面１０４４とは平行になっており、また、第３当接面１０８及び第４当接面１０４４のいずれも旋回部２０の軸線と垂直になっている。   The third contact surface 108 and the fourth contact surface 1044 are parallel to each other, and both the third contact surface 108 and the fourth contact surface 1044 are perpendicular to the axis of the turning unit 20. .

外科手術器具の初期状態において、弾性部材１０６は、圧縮状態に置かれ、旋回部作用部材１０４に対して終始外科手術器具の先端への付勢力を印加している。   In the initial state of the surgical instrument, the elastic member 106 is placed in a compressed state, and applies a biasing force to the distal end of the surgical instrument from the beginning to the end.

外科手術器具が閉鎖状態及びコッキング状態に置かれている場合、弾性部材１０６は、第３当接面１０８と第４当接面１０４４との間に保持され、且つ終始第４当接面１０４４に対して先端への付勢力を与えるために、依然として圧縮状態に保持されている。   When the surgical instrument is placed in the closed state and the cocking state, the elastic member 106 is held between the third abutting surface 108 and the fourth abutting surface 1044, and is always on the fourth abutting surface 1044. In order to apply a biasing force to the tip, it is still held in a compressed state.

旋回部作用部材１０４は、旋回部２０の径方向に延在し、少なくとも２つの作用部１０４６、１０４８を有する。器具本体１０には、作用部１０４６、１０４８と協働する位置決め孔１１０、１１２が設けられている。作用部１０４６、１０４８は、位置決め孔１１０、１１２内に移動可能であり、且つ外科手術器具が閉鎖状態及びコッキング状態に置かれている場合、旋回部２０の径方向において位置決め孔１１０、１１２を貫通して旋回部２０の内壁面２０２と当接している。   The swivel action member 104 extends in the radial direction of the swivel 20 and has at least two action parts 1046 and 1048. The instrument body 10 is provided with positioning holes 110 and 112 that cooperate with the action portions 1046 and 1048. The action parts 1046, 1048 are movable in the positioning holes 110, 112 and penetrate the positioning holes 110, 112 in the radial direction of the pivot part 20 when the surgical instrument is placed in the closed state and the cocking state. Thus, it is in contact with the inner wall surface 202 of the turning portion 20.

さらに、２つの作用部１０４６、１０４８は、互いに逆方向に延在するように設けられてよい。   Further, the two action portions 1046 and 1048 may be provided so as to extend in directions opposite to each other.

本実施形態において、外科手術器具が初期状態に置かれている場合、作用部１０４６、１０４８は、位置決め孔１１０、１１２を貫通せず、作用部１０４６、１０４８と旋回部の内壁面２０２との接触面は、位置決め孔１１０、１１２の外壁面と同じ高さであるように設けられている。   In this embodiment, when the surgical instrument is placed in the initial state, the action parts 1046 and 1048 do not penetrate the positioning holes 110 and 112, and the action parts 1046 and 1048 contact the inner wall surface 202 of the swivel part. The surface is provided to have the same height as the outer wall surface of the positioning holes 110 and 112.

さらに、旋回部作用部材１０４の先端端面は、位置決め孔１１０、１１２の、外科手術器具の基端に面する端面と平行になっている。旋回部作用部材１０４の基端端面は、位置決め孔１１０、１１２の、外科手術器具の先端に面する端面と平行になっている。   Further, the distal end surface of the swivel member acting member 104 is parallel to the end surfaces of the positioning holes 110 and 112 facing the proximal end of the surgical instrument. The proximal end face of the swivel member 104 is parallel to the end faces of the positioning holes 110 and 112 facing the distal end of the surgical instrument.

さらに、作用部１０４６、１０４８と旋回部の内壁面２０２との接触面の各部分は、旋回部の内壁面２０２と同時に接触又は分離するように設けられている。図２〜図５に示すように、旋回部の内壁面２０２はテーパー状である。作用部１０４６、１０４８は、基端から先端までの延在する長さが徐々に減少し、形成された接触面は、テーパー状に合わせた斜面である。   Furthermore, each part of the contact surface of action part 1046, 1048 and the inner wall surface 202 of a turning part is provided so that it may contact or isolate | separate simultaneously with the inner wall surface 202 of a turning part. As shown in FIGS. 2 to 5, the inner wall surface 202 of the turning portion is tapered. The acting portions 1046 and 1048 gradually decrease in length extending from the proximal end to the distal end, and the formed contact surface is a tapered slope.

さらに、器具本体１０内には、ラック阻止ブロック１１４がさらに設けられている。ラック１０２には、ラック阻止ブロック１１４と協働する係止ブロック１０２４が設けられている。   Further, a rack blocking block 114 is further provided in the instrument body 10. The rack 102 is provided with a locking block 1024 that cooperates with the rack blocking block 114.

外科手術器具が初期状態に置かれている場合には、係止ブロック１０２４は、ラック阻止ブロック１１４の基端に位置し、ラック１０２の、外科手術器具の先端への移動を抑制する。外科手術器具の閉鎖過程においては、ラック１０２が先端へ移動し、係止ブロック１０２４はラック阻止ブロック１１４を越える。外科手術器具が閉鎖コッキング状態に置かれている場合には、係止ブロック１０２４は、ラック阻止ブロック１１４の先端に位置し、ラック１０２の、外科手術器具の基端への移動を抑制する。理解を容易にするために、以下、本実施形態における外科手術器具の使用過程と併せて本実施形態に係る技術的解決手段について説明する。   When the surgical instrument is in the initial state, the locking block 1024 is located at the proximal end of the rack blocking block 114 and restrains the rack 102 from moving to the distal end of the surgical instrument. In the process of closing the surgical instrument, the rack 102 moves to the tip and the locking block 1024 goes beyond the rack blocking block 114. When the surgical instrument is placed in a closed cocking state, the locking block 1024 is located at the distal end of the rack blocking block 114 and prevents movement of the rack 102 to the proximal end of the surgical instrument. In order to facilitate understanding, the technical solution means according to this embodiment will be described below together with the process of using the surgical instrument in this embodiment.

外科手術器具が初期状態に置かれている場合、ラック１０２は、ラック阻止ブロック１１４の制御を受け、外科手術器具の先端へ移動することができない。このとき、ラック１０２の第１当接面１０２２と旋回部作用部材１０４の第２当接面１０４２とは接触し、旋回部作用部材１０４と旋回部の内壁面２０２との間は、隙間を有し又は上述したように僅かに接触する。弾性部材１０６は、圧縮状態に置かれている。これにより、操作者はステープルカートリッジアセンブリの方向を調整するために、旋回部をスムーズに回転させることができる。   When the surgical instrument is in the initial state, the rack 102 is under the control of the rack blocking block 114 and cannot move to the tip of the surgical instrument. At this time, the first abutment surface 1022 of the rack 102 and the second abutment surface 1042 of the swivel portion acting member 104 are in contact with each other, and there is a gap between the swivel portion acting member 104 and the inner wall surface 202 of the swivel portion. Or touch slightly as described above. The elastic member 106 is placed in a compressed state. Thus, the operator can smoothly rotate the turning portion in order to adjust the direction of the staple cartridge assembly.

ステープルカートリッジアセンブリの方向が調整された後、ステープルカートリッジアセンブリのステープルカートリッジ及びステープルアンビルを閉じるようにコッキングハンドル３０を操作する。このとき、ラック１０２は、先端へ移動し、係止ブロック１０２４は、ラック阻止ブロック１１４を越えてラック阻止ブロック１１４の先端に位置する。ラック１０２の先端に設けられた第１当接面１０２２も同時に先端へ移動する。弾性部材１０６は、終始圧縮状態に置かれているため、弾性部材１０６の作用により、旋回部作用部材１０４の作用部１０４６、１０４８が位置決め孔１１０、１１２を通り抜け、旋回部の内壁面２０２に張力を印加するまで旋回部作用部材１０４を外科手術器具の先端へ移動させる。従って、操作者が閉鎖状態及びコッキング状態のときに旋回部２０を軸線回転させることができない又は容易にできず、旋回部２０の円周方向での相対位置が堅固に固定され、旋回部２０が外科手術器具の閉鎖及びコッキング状態での誤回転が防止され、ヒト組織に対する損傷が回避され、手術のリスクが減少する。   After the orientation of the staple cartridge assembly is adjusted, the cocking handle 30 is operated to close the staple cartridge and staple anvil of the staple cartridge assembly. At this time, the rack 102 moves to the leading end, and the locking block 1024 is positioned at the leading end of the rack blocking block 114 beyond the rack blocking block 114. The first contact surface 1022 provided at the tip of the rack 102 also moves to the tip at the same time. Since the elastic member 106 is always in a compressed state, due to the action of the elastic member 106, the action portions 1046 and 1048 of the turning portion action member 104 pass through the positioning holes 110 and 112, and tension is applied to the inner wall surface 202 of the turning portion. Until the swivel action member 104 is moved to the tip of the surgical instrument. Accordingly, when the operator is in the closed state and the cocking state, the turning unit 20 cannot be rotated or cannot be easily rotated, the relative position of the turning unit 20 in the circumferential direction is firmly fixed, and the turning unit 20 is Surgical instrument closure and false rotation in the cocking state are prevented, damage to human tissue is avoided, and the risk of surgery is reduced.

本明細書は、実施形態に基づいて説明されているが、１つの実施形態が１つの独立した技術的解決手段のみを含むわけではないことは理解されたい。明細書についてのこのような記載方法は、理解しやいためであり、当業者が明細書を１つの全体としてみなし、各実施形態における技術的解決手段は、適宜の組合せにより、当業者が理解可能なほかの実施形態に形成されてもよい。   Although the specification has been described with reference to embodiments, it is to be understood that one embodiment does not include only one independent technical solution. This description method for the specification is easy to understand, and those skilled in the art regard the specification as a whole, and the technical solutions in each embodiment can be understood by those skilled in the art by appropriate combinations. It may be formed in other embodiments.

上記の詳細な説明は、本考案の実施可能な形態についての具体的な説明だけであり、本考案の保護範囲を限定するものではない。本考案の技術的精神から逸脱せずになされた等価実施形態又は変更のすべては、本考案の保護範囲内に含まれる。   The above detailed description is only a specific description of the possible embodiments of the present invention, and does not limit the protection scope of the present invention. All equivalent embodiments or modifications made without departing from the technical spirit of the present invention are included in the protection scope of the present invention.

Claims (10)

器具本体と、前記器具本体と接続された旋回部と、前記器具本体とピボット接続されたコッキングハンドルと、前記コッキングハンドルと協働し、前記コッキングハンドルの作用により前記外科手術器具の基端から先端へ移動可能なラックとを備える外科手術器具であって、
前記外科手術器具は、旋回部作用部材をさらに備え、
前記外科手術器具が初期状態に置かれている場合には、前記旋回部は、軸線を中心に回転可能な状態に配置され、前記ラックと前記旋回部作用部材とは接触し、且つ前記旋回部作用部材に対して前記外科手術器具の基端方向への付勢力を印加し、
前記外科手術器具が閉鎖状態及びコッキング状態に置かれている場合には、前記ラックと前記旋回部作用部材とは分離し、前記旋回部作用部材が前記旋回部の内壁面に接触し、少なくとも前記旋回部の径方向において前記旋回部に対して張力を印加することを特徴とする外科手術器具。 An instrument body; a pivot connected to the instrument body; a cocking handle pivotally connected to the instrument body; and the cocking handle cooperating with the cocking handle to act from the proximal end to the distal end of the surgical instrument A surgical instrument comprising a movable rack
The surgical instrument further comprises a swivel working member,
When the surgical instrument is placed in an initial state, the swivel portion is disposed so as to be rotatable about an axis, the rack and the swivel portion acting member are in contact with each other, and the swivel portion Applying a biasing force in a proximal direction of the surgical instrument to the action member;
When the surgical instrument is placed in a closed state and a cocking state, the rack and the swivel action member are separated, the swivel action member contacts an inner wall surface of the swivel, and at least the A surgical instrument characterized by applying tension to the swivel part in a radial direction of the swivel part. 前記外科手術器具が初期状態に置かれている場合、前記旋回部作用部材と前記旋回部の内壁面との間には隙間が設けられることを特徴とする請求項１に記載の外科手術器具。   2. The surgical instrument according to claim 1, wherein when the surgical instrument is placed in an initial state, a gap is provided between the swivel working member and an inner wall surface of the swivel. 前記器具本体内には、前記旋回部作用部材と協働する弾性部材がさらに取り付けられ、前記外科手術器具が初期状態に置かれている場合、前記弾性部材は、前記旋回部作用部材に対して終始前記外科手術器具の先端方向への付勢力を印加することを特徴とする請求項１に記載の外科手術器具。   In the instrument main body, an elastic member cooperating with the swivel action member is further attached, and when the surgical instrument is placed in an initial state, the elastic member is in relation to the swivel action member. The surgical instrument according to claim 1, wherein a biasing force in a distal direction of the surgical instrument is applied throughout. 前記ラックの先端には、第１当接面が設けられ、前記旋回部作用部材の基端には、第２当接面が設けられ、前記外科手術器具が初期状態に置かれている場合、前記第１当接面と前記第２当接面とは当接していることを特徴とする請求項１に記載の外科手術器具。   A first contact surface is provided at the tip of the rack, a second contact surface is provided at the proximal end of the swivel working member, and the surgical instrument is in an initial state. The surgical instrument according to claim 1, wherein the first contact surface and the second contact surface are in contact with each other. 前記器具本体内には、前記外科手術器具の先端に面する第３当接面が設けられ、前記旋回部作用部材には、前記外科手術器具の基端に面する第４当接面が設けられ、前記弾性部材は、前記第３当接面と前記第４当接面との間に挟持されていることを特徴とする請求項３に記載の外科手術器具。   A third abutting surface facing the distal end of the surgical instrument is provided in the instrument body, and a fourth abutting surface facing the proximal end of the surgical instrument is provided on the swivel action member. The surgical instrument according to claim 3, wherein the elastic member is sandwiched between the third contact surface and the fourth contact surface. 前記旋回部作用部材は、前記旋回部の径方向に延在し、少なくとも２つの作用部を有し、前記器具本体には、前記作用部と協働する位置決め孔が設けられ、前記作用部は、前記位置決め孔内に移動可能であり、且つ前記外科手術器具が閉鎖状態及びコッキング状態に置かれている場合、前記旋回部の径方向において前記位置決め孔を貫通して前記旋回部の内壁面と当接していることを特徴とする請求項１に記載の外科手術器具。   The swivel portion acting member extends in a radial direction of the swivel portion and has at least two acting portions. The instrument body is provided with a positioning hole that cooperates with the acting portion. When the surgical instrument is placed in a closed state and a cocking state, and penetrates the positioning hole in the radial direction of the swivel portion and the inner wall surface of the swivel portion, The surgical instrument according to claim 1, wherein the surgical instrument is in contact with the surgical instrument. 前記旋回部作用部材の先端端面は、前記位置決め孔の、前記外科手術器具の基端に面する端面と平行になっており、前記旋回部作用部材の基端端面は、前記位置決め孔の、前記外科手術器具の先端に面する端面と平行になっていることを特徴とする請求項６に記載の外科手術器具。   A distal end surface of the swivel member working member is parallel to an end surface of the positioning hole facing a proximal end of the surgical instrument, and a proximal end surface of the swivel member working member is the position of the positioning hole. The surgical instrument according to claim 6, wherein the surgical instrument is parallel to an end surface facing the distal end of the surgical instrument. 前記２つの作用部の延在方向は逆であることを特徴とする請求項６に記載の外科手術器具。   The surgical instrument according to claim 6, wherein the extending directions of the two action portions are opposite to each other. 前記作用部と前記旋回部の内壁面との接触面の各部分は、前記旋回部の内壁面と同時に接触又は分離するように設けられていることを特徴とする請求項６に記載の外科手術器具。   The surgical operation according to claim 6, wherein each part of the contact surface between the action part and the inner wall surface of the swivel part is provided so as to contact or separate simultaneously with the inner wall surface of the swivel part. Instruments. 前記器具本体内には、ラック阻止ブロックがさらに設けられ、前記ラックには、前記ラック阻止ブロックと協働する係止ブロックが設けられ、前記外科手術器具が初期状態に置かれている場合には、前記ラック阻止ブロックは、前記係止ブロックの先端に位置し、前記ラックの、前記外科手術器具の先端への移動を抑制し、前記外科手術器具が閉鎖状態に置かれている場合には、前記ラック阻止ブロックは、前記係止ブロックの基端に位置し、前記ラックの、前記外科手術器具の基端への移動を抑制することを特徴とする請求項１に記載の外科手術器具。   A rack blocking block is further provided in the instrument body, and the rack is provided with a locking block that cooperates with the rack blocking block, and when the surgical instrument is in an initial state. The rack blocking block is located at the distal end of the locking block, restrains movement of the rack to the distal end of the surgical instrument, and when the surgical instrument is placed in a closed state, The surgical instrument according to claim 1, wherein the rack blocking block is located at a proximal end of the locking block, and suppresses movement of the rack to a proximal end of the surgical instrument.
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