WO2019131343A1 - Surgical suction device and auxiliary member for attachment thereto - Google Patents

Surgical suction device and auxiliary member for attachment thereto Download PDF

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Publication number
WO2019131343A1
WO2019131343A1 PCT/JP2018/046623 JP2018046623W WO2019131343A1 WO 2019131343 A1 WO2019131343 A1 WO 2019131343A1 JP 2018046623 W JP2018046623 W JP 2018046623W WO 2019131343 A1 WO2019131343 A1 WO 2019131343A1
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Prior art keywords
auxiliary member
suction tube
suction
peripheral surface
opening
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PCT/JP2018/046623
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French (fr)
Japanese (ja)
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謙一 松村
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謙一 松村
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Publication of WO2019131343A1 publication Critical patent/WO2019131343A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems

Definitions

  • the present invention relates to a surgical suction tool for sucking blood or the like during surgery, and an auxiliary member attached to the surgical suction tool.
  • the inventor has created various shapes for a surgical suction head connected to a flexible, flexible suction tube that does not need to be held by an assistant (for example, Patent Documents 1 to 5) ).
  • These surgical suction heads have a characteristic outer diameter, and the suction tool is blocked by the heart, blood vessel wall and surrounding tissue by an opening (a vent hole) provided on the proximal side of the outer peripheral surface thereof. Can be prevented as much as possible, and blood and exudate can be effectively aspirated.
  • the surrounding area of the suction tube connected to the surgical suction tool head may be covered by nearby tissue as the heart beats or the like.
  • the flow of air for securing the suction force (negative pressure in the suction head for surgery) by the suction head for surgery is blocked by the tissue, and it may be difficult to surely suction the blood etc. It was considered as a point to be done.
  • the present invention has been made in view of the above circumstances, and a surgical suction tool capable of reliably sucking blood or the like even in a state where the suction tube is surrounded by surrounding tissue.
  • An object of the present invention is to provide an auxiliary member attached to the surgical suction tool.
  • a suction tool for surgery is a suction tool for surgery in which an auxiliary member is disposed in a suction tube connected to a head portion,
  • the head portion includes an outer cylinder portion provided with a through hole communicating with the inner space, and a connection portion provided at an end portion of the outer cylinder portion.
  • the suction tube has a long cylindrical shape
  • the auxiliary member has a ring shape with an opening formed at the center, and a notch is provided on an inner peripheral surface adjacent to the opening, One end of the suction tube is connected to the connection portion of the head portion;
  • the suction tube is inserted into the opening of the auxiliary member, and a part of the outer peripheral surface of the suction tube is held by the inner circumferential surface portion, and the auxiliary member is along the longitudinal direction of the suction tube. It is characterized in that it is slidable and an air vent is formed between the suction tube and the notch of the auxiliary member.
  • the auxiliary member according to the present invention is a ring-like member having an opening at its center, which can be slidably attached to the outer peripheral surface of a cylindrical suction tube, A notch is provided in the inner peripheral surface adjacent to the opening, and a part of the outer peripheral surface of the suction tube inserted into the opening can be held by the inner peripheral surface, and the suction is performed.
  • a vent is formed by the cutaway portion between the tube and the inner peripheral surface portion of the auxiliary member.
  • the surgical suction tool and the auxiliary member of the present invention it is possible to reliably suction the blood and the like even in the state where the periphery of the suction tube is covered by the nearby tissue.
  • FIG. (A) to (C) are front views illustrating another embodiment of the assisting member in the surgical suction tool of the present invention.
  • FIG. 1 is a perspective view illustrating an embodiment of the surgical suction tool of the present invention.
  • FIG. 2 is a cross-sectional view of the head portion shown in FIG.
  • the surgical suction tool 1 includes a head portion 2, a suction tube 3 and an auxiliary member 4, and the auxiliary member 4 is disposed on the suction tube 3 connected to the head portion 2. It is done.
  • the surgical suction tool 1 can suction blood or the like bleeding at the time of surgery by connecting with various suction devices (not shown) known in the prior art.
  • the head portion 2 includes an outer cylindrical portion 21 and a connection portion 22 provided at an end of the outer cylindrical portion 21.
  • the outer cylindrical portion 21 has a hollow, substantially cylindrical shape with one end opened, and is provided with a plurality of through holes 211 communicating with the internal space R at the outer peripheral surface and the tip.
  • the through hole 211 is formed in a substantially circular shape or a substantially elliptical shape.
  • a female screw portion 212 is formed on the inner peripheral surface on the open end side of the outer cylindrical portion 21.
  • connection portion 22 is an elongated member in which the suction portion 221, the engagement portion 222, and the attachment portion 223 are connected in series, and the suction portion 221, the engagement portion 222, and the attachment portion 223 communicate in the longitudinal direction
  • the suction passage L is formed.
  • the suction portion 221 is formed in a substantially cylindrical shape having a suction port 221 a at its tip.
  • the suction portion 221 is inserted into the inner space R from the open end side of the outer cylinder portion 21, and the suction port 221 a at the tip thereof is opposed to the through hole 211 at the tip of the outer cylinder portion 21.
  • the engaging portion 222 is integrally formed with the suction portion 221, and is engaged with the outer cylindrical portion 21.
  • the engagement portion 222 extends outward in the circumferential direction from the rear end side of the suction portion 221, and a male screw portion 222a is formed on the outer peripheral surface thereof.
  • a male screw portion 222a is formed on the outer peripheral surface thereof.
  • the attachment portion 223 extends in the longitudinal direction from the end of the inclined portion 222 b of the engagement portion 222 to the opposite side to the suction portion 221, and is exposed to the outside of the outer cylindrical portion 21.
  • the mounting portion 223 is formed with an annular rib 223 a adjacent to the inclined portion 222 b of the engagement portion 222.
  • the annular rib 223 a has a substantially disk shape that protrudes outward in the circumferential direction of the attachment portion 223, and a gap S is formed between the annular rib 223 a and the inclined portion 222 b of the engaging portion 222.
  • a stepped portion 223b that protrudes outward in the circumferential direction of the mounting portion 223 is continuously formed in the longitudinal direction from near the center of the annular rib 223a.
  • the end of the suction tube 3 can be attached to the attachment portion 223.
  • the suction tube 3 has a long cylindrical shape and has flexibility. Specifically, insert the suction tube 3 by inserting the stepped portion 223b side of the attachment portion 223 into the inside of the suction tube 3 and pushing the end of the suction tube 3 into contact with the annular rib 223a of the attachment portion 223 Can.
  • the suction tube 3 is in close contact with the surface of the step portion 223b due to its flexibility, so the suction tube 3 once attached to the mounting portion 223 has a structure in which the step portion 223b becomes a resistance and is difficult to drop off.
  • An auxiliary member 4 is disposed in the suction tube 3.
  • FIG. 3 is a perspective view illustrating an embodiment of the assisting member in the surgical suction tool of the present invention.
  • the auxiliary member 4 is formed in a ring shape (substantially disc shape) having an opening 41 at the center.
  • the outer peripheral surface portion 42 forms the outer edge of the auxiliary member 4.
  • the inner circumferential surface 43 of the auxiliary member 4 faces the opening 41.
  • the inner circumferential surface portion 43 is curved in the circumferential direction, and is formed parallel to the thickness direction of the auxiliary member 4.
  • the notched portion 44 is formed in a substantially arc shape recessed from the inner circumferential surface portion 43 toward the outer side (the outer circumferential surface portion 42 side), and communicates in the thickness direction of the auxiliary member 4.
  • the opening 41 on the inner side of the inner circumferential surface 43 is formed in a substantially circular shape except for the notch 44.
  • the diameter of the opening 41 on the inner side of the inner peripheral surface portion 43 is designed to correspond to the outer diameter of the suction tube 3.
  • the material of the auxiliary member 4 is not particularly limited, for example, those formed of metal, ceramic, resin or the like as a material can be exemplified.
  • FIG. 4 is a cross-sectional view taken along the line A-A 'in FIG.
  • the auxiliary member 4 holds the suction tube 3 stably. Also, it can be freely slid along the longitudinal direction of the suction tube 3. Therefore, the auxiliary member 4 can be disposed at a desired position in the longitudinal direction of the suction tube 3.
  • FIG. 5 is a schematic view illustrating a state in which blood or the like is sucked by the surgical suction tool of the present invention.
  • the head unit 2 includes a plurality of through holes 211 communicating with the internal space R, blood or the like sucked from the through holes 211 is connected through the suction passage L from the suction port 221 a at the tip of the suction unit 221. It is conveyed to the suction tube 3. Further, an introducing hole 222c is formed in the inclined portion 222b of the engaging portion 222, and a gap S is formed between the annular rib 223a and the inclined portion 222b of the engaging portion 222. Therefore, for example, even if the through hole 211 of the outer cylinder portion 21 is closed, air can be introduced from the introduction hole 222c into the internal space R of the outer cylinder portion 21. The suction force of blood or the like can be maintained from the through hole 211.
  • the periphery of the suction tube 3 may be covered by the nearby tissue T.
  • the flow of air for securing the suction force (negative pressure in the suction head for surgery) by the suction head for surgery is blocked by the tissue T, and the blood B or the like is reliably suctioned. It can be difficult to do.
  • the ring-shaped auxiliary member 4 is disposed on the suction tube 3, and the outer peripheral surface portion 42 protrudes outward. Further, the suction tube 3 is inserted into the opening 41 of the auxiliary member 4, and the outer surface of the suction tube 3 is held by the inner circumferential surface portion 43, and between the suction tube 3 and the inner circumferential surface 43 of the auxiliary member 4 The vent 45 by the notch 44 is formed in the.
  • the surgical suction tool 1 can secure a gap with the tissue T by the outer peripheral surface portion 42 of the auxiliary member 4, Even when the gap is insufficient, air can be circulated from the outside to the head portion 2 side through the vent 45. Therefore, the suction force (negative pressure in the head portion 2) by the surgical suction tool 1 can be reliably ensured, and blood B or the like can be reliably suctioned.
  • the auxiliary member 4 is disposed in the suction tube 3 connected to the head portion 2.
  • the head portion 2 includes an outer cylindrical portion 21 having a through hole 211 communicating with the inner space R, and a connection portion 22 provided at an end of the outer cylindrical portion 21.
  • the suction tube 3 has a long cylindrical shape.
  • the auxiliary member 4 has a ring shape with an opening 41 formed at the center, and a notch 44 is provided on the inner circumferential surface 43 adjacent to the opening 41.
  • One end of the suction tube 3 is connected to the connection portion 22 of the head portion 2.
  • the suction tube 3 is inserted into the opening 41 of the auxiliary member 4, and a part of the outer peripheral surface 31 of the suction tube 3 is held by the inner circumferential surface portion 43, and the auxiliary member 4 extends in the longitudinal direction of the suction tube 3. It is slidable along.
  • a vent 45 is formed between the suction tube 3 and the notch 44 of the auxiliary member 4.
  • the auxiliary member 4 of the present invention is in the form of a ring having an opening 41 at its center, and is slidably attached to the outer surface of the cylindrical suction tube 3.
  • the notch part 44 is provided in the inner peripheral surface part 43 adjacent to the opening part 41, and when the suction tube 3 is inserted into the opening part 41 of the auxiliary member 4, the outer peripheral surface of the suction tube 3 is formed by the inner peripheral surface part 43. A part of 31 can be held, and a vent 45 is formed between the suction tube 3 and the notch 44 of the auxiliary member 4.
  • the surgical suction tool and auxiliary member of the present invention are not limited to the above embodiments.
  • the form of the head portion is not particularly limited, and may be the form shown in Patent Documents 1 to 5.
  • the form of the inner peripheral surface portion and the notch portion of the auxiliary member can be appropriately designed.
  • the inner peripheral surface portion of the auxiliary member may have, for example, a polygonal shape in a front view, and the shape, the number, the arrangement position, and the like of the cutout portion of the auxiliary member can be appropriately designed.
  • FIGS. 6A to 6C are front views illustrating another embodiment of the assisting member in the surgical suction tool of the present invention. Parts in common with the embodiment described in FIG. 1, FIG. 3, FIG. 4 and the like are given the same reference numerals, and the explanation will be partially omitted below.
  • the auxiliary member illustrated in FIG. 6A has an opening 41 at the center, and three notches 44 are provided on the inner peripheral surface 43 facing the opening 41 and curving.
  • the notch part 44 is formed as a groove
  • a suction tube (not shown) is inserted into the opening 41, a vent 45 having a substantially semicircular cross section is formed in the space inside the notch 44.
  • the auxiliary member illustrated in FIG. 6B has an opening 41 at the center, and four notches 44 are provided on the inner circumferential surface 43 facing the opening 41 and curving.
  • the notch part 44 is formed as a groove
  • the auxiliary member illustrated in FIG. 6C has an opening 41 at the center, and eight notches 44 are provided on the inner circumferential surface 43 facing the opening 41 and curving.
  • the notched portion 44 is formed as a groove having a substantially triangular cross section which is recessed at an acute angle toward the outer peripheral surface portion 42 side.
  • a suction tube (not shown) is inserted into the opening 41, a vent 45 having a triangular cross section is formed in the space inside the notch 44.
  • the surgical suction tool of the present invention includes one provided with an auxiliary member as illustrated in FIGS. 6 (A) to 6 (C). Also in such an embodiment, even if the circumference of the suction tube is covered with the nearby tissue, the inflow of air can be secured by the vent 45, so that blood or the like can be reliably sucked.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
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  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

In the present invention, a suction tube 3 is inserted into an opening 41 of an auxiliary member 4, the outer peripheral surface of the suction tube 3 is held by the inner peripheral surface 43 of the auxiliary member 4, the auxiliary member is able to slide along the longitudinal direction of the suction tube 3, and a ventilation ports 45 are formed by notch portions 44 between the suction tube 3 and the inner peripheral surface 43 of the auxiliary member 4.

Description

手術用吸引具およびこれに取付けられる補助部材Surgical suction tool and auxiliary member attached thereto
　本発明は、手術中に血液等を吸引するための手術用吸引具と、この手術用吸引具に取付けられる補助部材に関する。 The present invention relates to a surgical suction tool for sucking blood or the like during surgery, and an auxiliary member attached to the surgical suction tool.
　心臓血管外科手術では心臓や血管を切り開く必要がある。その際に心臓内や血管内から絶えず流出する血液を適切に吸引しないと、手術視野が確保できないため、助手が把持する手術用吸引具が使用されている。 In cardiovascular surgery, it is necessary to dissect the heart and blood vessels. At that time, since the field of view can not be secured unless the blood constantly drained out from the heart and blood vessels is properly aspirated, a surgical suction tool held by an assistant is used.
　本発明者は助手が把持しておく必要のない、柔軟性、適応性に富んだ吸引チューブに連結される手術用吸引ヘッドについて、様々な形状を創案している（例えば、特許文献1～5）。これらの手術用吸引ヘッドは、特徴的な外径を有しており、その外周面近位側に設けられた開口部（ベント孔）などにより、心臓や血管壁、周囲組織によって吸引具が閉塞されることを可及的に予防し、血液や浸出液などを効果的に吸引することができる。 The inventor has created various shapes for a surgical suction head connected to a flexible, flexible suction tube that does not need to be held by an assistant (for example, Patent Documents 1 to 5) ). These surgical suction heads have a characteristic outer diameter, and the suction tool is blocked by the heart, blood vessel wall and surrounding tissue by an opening (a vent hole) provided on the proximal side of the outer peripheral surface thereof. Can be prevented as much as possible, and blood and exudate can be effectively aspirated.
意匠登録1549695Design registration 1549695 意匠登録1513694Design registration 1513694 意匠登録1513693Design registration 1513693 意匠登録1486648Design registration 1486648 意匠登録1486648Design registration 1486648
　しかしながら、例えば上記のような心臓手術では、心臓の拍動などに伴って、手術用吸引具用ヘッドと接続する吸引チューブの周囲が付近の組織に覆われることがある。この場合、手術用吸引ヘッドによる吸引力（手術用吸引ヘッド内の負圧）を確保するための空気の流れが組織によって阻害され、血液などを確実に吸引することが難しい場合があることが改善すべき点として考えられた。 However, for example, in cardiac surgery as described above, the surrounding area of the suction tube connected to the surgical suction tool head may be covered by nearby tissue as the heart beats or the like. In this case, the flow of air for securing the suction force (negative pressure in the suction head for surgery) by the suction head for surgery is blocked by the tissue, and it may be difficult to surely suction the blood etc. It was considered as a point to be done.
　本発明は、以上のような事情に鑑みてなされたものであり、吸引チューブの周囲が付近の組織に覆われる状態であっても、血液などを確実に吸引することができる手術用吸引具と、この手術用吸引具に取付けられる補助部材を提供することを課題としている。 The present invention has been made in view of the above circumstances, and a surgical suction tool capable of reliably sucking blood or the like even in a state where the suction tube is surrounded by surrounding tissue. An object of the present invention is to provide an auxiliary member attached to the surgical suction tool.
　上記の課題を解決するため、本発明の手術用吸引具は、ヘッド部と接続する吸引チューブに補助部材が配設されている手術用吸引具であって、
　前記ヘッド部は、内部空間と連通する貫通孔を備えた外筒部と、この外筒部の端部に設けられた接続部とを備え、
　前記吸引チューブは長尺な円筒状であり、
　前記補助部材は、中央に開口部が形成されたリング状であり、かつ、その開口部に隣接する内周面部には切欠け部が設けられており、
　前記ヘッド部の前記接続部に前記吸引チューブの一端が接続し、
　前記補助部材の前記開口部内に前記吸引チューブが挿入されて、前記内周面部によって前記吸引チューブの外周面の一部が保持されているとともに、前記補助部材は前記吸引チューブの長手方向に沿ってスライド自在であり、前記吸引チューブと前記補助部材の前記切欠け部の間には通気口が形成されていることを特徴としている。 In order to solve the above-mentioned problems, a suction tool for surgery according to the present invention is a suction tool for surgery in which an auxiliary member is disposed in a suction tube connected to a head portion,
The head portion includes an outer cylinder portion provided with a through hole communicating with the inner space, and a connection portion provided at an end portion of the outer cylinder portion.
The suction tube has a long cylindrical shape,
The auxiliary member has a ring shape with an opening formed at the center, and a notch is provided on an inner peripheral surface adjacent to the opening,
One end of the suction tube is connected to the connection portion of the head portion;
The suction tube is inserted into the opening of the auxiliary member, and a part of the outer peripheral surface of the suction tube is held by the inner circumferential surface portion, and the auxiliary member is along the longitudinal direction of the suction tube. It is characterized in that it is slidable and an air vent is formed between the suction tube and the notch of the auxiliary member.
　本発明の補助部材は、中央に開口部が形成されたリング状であり、円筒状の吸引チューブの外周面にスライド自在に取付け可能な補助部材であって、
　前記開口部に隣接する内周面部には切欠け部が設けられており、前記開口部に挿入された前記吸引チューブの外周面の一部を前記内周面部によって保持可能であるとともに、前記吸引チューブと前記補助部材の前記内周面部の間には、前記切欠け部による通気口が形成されることを特徴としている。 The auxiliary member according to the present invention is a ring-like member having an opening at its center, which can be slidably attached to the outer peripheral surface of a cylindrical suction tube,
A notch is provided in the inner peripheral surface adjacent to the opening, and a part of the outer peripheral surface of the suction tube inserted into the opening can be held by the inner peripheral surface, and the suction is performed. A vent is formed by the cutaway portion between the tube and the inner peripheral surface portion of the auxiliary member.
　本発明の手術用吸引具および補助部材によれば、吸引チューブの周囲が付近の組織に覆われる状態であっても、血液などを確実に吸引することができる。 According to the surgical suction tool and the auxiliary member of the present invention, it is possible to reliably suction the blood and the like even in the state where the periphery of the suction tube is covered by the nearby tissue.
本発明の手術用吸引具の一実施形態を例示した斜視図である。It is the perspective view which illustrated one embodiment of the surgical suction tool of this invention. 図１に示したヘッド部の断面図である。It is sectional drawing of the head part shown in FIG. 本発明の手術用吸引具における補助部材の一実施形態を例示した斜視図である。It is the perspective view which illustrated one Embodiment of the auxiliary member in the surgical suction tool of this invention. 図１におけるＡ－Ａ’矢視断面図である。It is an A-A 'arrow sectional view in FIG. 図１に例示した実施形態の手術用吸引具によって血液などを吸引した状態を例示する概要図である。It is a schematic diagram which illustrates the state where blood etc. were aspirated by the surgical suction tool of the embodiment illustrated in FIG. （Ａ）～（Ｃ）は、本発明の手術用吸引具における補助部材の別の実施形態を例示した正面図である。(A) to (C) are front views illustrating another embodiment of the assisting member in the surgical suction tool of the present invention.
　本発明の手術用吸引具の一実施形態について図面とともに説明する。図１は、本発明の手術用吸引具の一実施形態を例示した斜視図である。図２は、図１に示したヘッド部の断面図である。 An embodiment of a surgical suction tool of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view illustrating an embodiment of the surgical suction tool of the present invention. FIG. 2 is a cross-sectional view of the head portion shown in FIG.
　図１に例示したように、手術用吸引具１は、ヘッド部２と、吸引チューブ３と、補助部材４とを備えており、ヘッド部２と接続する吸引チューブ３に補助部材４が配設されている。手術用吸引具１は、従来知られている各種の吸引装置（図示していない）と接続することで、手術時に出血した血液などを吸引することができる。 As illustrated in FIG. 1, the surgical suction tool 1 includes a head portion 2, a suction tube 3 and an auxiliary member 4, and the auxiliary member 4 is disposed on the suction tube 3 connected to the head portion 2. It is done. The surgical suction tool 1 can suction blood or the like bleeding at the time of surgery by connecting with various suction devices (not shown) known in the prior art.
　図２に例示したように、ヘッド部２は、外筒部２１と、外筒部２１の端部に設けられた接続部２２とを備えている。 As illustrated in FIG. 2, the head portion 2 includes an outer cylindrical portion 21 and a connection portion 22 provided at an end of the outer cylindrical portion 21.
　外筒部２１は、一端が開放された中空な略円筒状であり、外周面および先端に内部空間Ｒと連通する複数の貫通孔２１１を備えている。貫通孔２１１は、略円形または略楕円形に形成されている。また、外筒部２１の開放端側の内周面には雌ネジ部２１２が形成されている。 The outer cylindrical portion 21 has a hollow, substantially cylindrical shape with one end opened, and is provided with a plurality of through holes 211 communicating with the internal space R at the outer peripheral surface and the tip. The through hole 211 is formed in a substantially circular shape or a substantially elliptical shape. Further, a female screw portion 212 is formed on the inner peripheral surface on the open end side of the outer cylindrical portion 21.
　接続部２２は、吸引部２２１、係合部２２２および取付部２２３が直列に接続する長尺な部材であり、吸引部２２１、係合部２２２および取付部２２３の内部には、長手方向に連通する吸入路Ｌが形成されている。 The connection portion 22 is an elongated member in which the suction portion 221, the engagement portion 222, and the attachment portion 223 are connected in series, and the suction portion 221, the engagement portion 222, and the attachment portion 223 communicate in the longitudinal direction The suction passage L is formed.
　吸引部２２１は、先端に吸引口２２１aを備えた略円柱状に形成されている。吸引部２２１は、外筒部２１の開放端側からその内部空間Ｒに挿入されており、その先端の吸引口２２１aが外筒部２１の先端の貫通孔２１１と対向している。 The suction portion 221 is formed in a substantially cylindrical shape having a suction port 221 a at its tip. The suction portion 221 is inserted into the inner space R from the open end side of the outer cylinder portion 21, and the suction port 221 a at the tip thereof is opposed to the through hole 211 at the tip of the outer cylinder portion 21.
　係合部２２２は、吸引部２２１と一体に形成されており、外筒部２１と係合している。係合部２２２は、吸引部２２１の後端側から周方向の外側に拡がっており、その外周面に雄ネジ部２２２aが形成されている。外筒部２１の内周面に形成されている雌ネジ部２１２と雄ネジ部２２２aとが螺合することで、外筒部２１と接続部２２とが互いに係合している。さらに、係合部２２２の雄ネジ部２２２aよりも後端側は、次第に径小になる傾斜部２２２bが形成されている。この傾斜部２２２bには、係合部２２２の雄ネジ部２２２aと吸入路Ｌとの間を通じて、外部と外筒部２１の内部空間Ｒとを連通する導入孔２２２c（図１に図示）が形成されている。 The engaging portion 222 is integrally formed with the suction portion 221, and is engaged with the outer cylindrical portion 21. The engagement portion 222 extends outward in the circumferential direction from the rear end side of the suction portion 221, and a male screw portion 222a is formed on the outer peripheral surface thereof. By screwing the female screw portion 212 formed on the inner peripheral surface of the outer cylindrical portion 21 and the male screw portion 222a, the outer cylindrical portion 21 and the connection portion 22 are engaged with each other. Further, on the rear end side of the male screw portion 222a of the engaging portion 222, an inclined portion 222b whose diameter is gradually reduced is formed. The inclined portion 222b is formed with an introduction hole 222c (shown in FIG. 1) for communicating the outside with the internal space R of the outer cylindrical portion 21 through the gap between the male screw portion 222a of the engagement portion 222 and the suction passage L. It is done.
　取付部２２３は、係合部２２２の傾斜部２２２bの端部から吸引部２２１と反対側に向かって長手方向に延びており、外筒部２１の外側に露出している。取付部２２３には、係合部２２２の傾斜部２２２bと隣接する環状リブ２２３aが形成されている。環状リブ２２３aは、取付部２２３の周方向の外側に向かって突出する略円盤状であり、環状リブ２２３aと係合部２２２の傾斜部２２２bとの間には空隙Ｓが形成されている。さらに、取付部２２３は、環状リブ２２３aの中央付近から長手方向に向かって、取付部２２３の周方向の外側に突出する段部２２３bが連続して形成されている。 The attachment portion 223 extends in the longitudinal direction from the end of the inclined portion 222 b of the engagement portion 222 to the opposite side to the suction portion 221, and is exposed to the outside of the outer cylindrical portion 21. The mounting portion 223 is formed with an annular rib 223 a adjacent to the inclined portion 222 b of the engagement portion 222. The annular rib 223 a has a substantially disk shape that protrudes outward in the circumferential direction of the attachment portion 223, and a gap S is formed between the annular rib 223 a and the inclined portion 222 b of the engaging portion 222. Furthermore, in the mounting portion 223, a stepped portion 223b that protrudes outward in the circumferential direction of the mounting portion 223 is continuously formed in the longitudinal direction from near the center of the annular rib 223a.
　取付部２２３には、吸引チューブ３の端部を取り付けることができる。吸引チューブ３は、長尺な円筒状であり、柔軟性を有している。具体的には、吸引チューブ３の内部に取付部２２３の段部２２３b側を挿入し、吸引チューブ３の端部が取付部２２３の環状リブ２２３aと当接するまで押し込むことで吸引チューブ３を取り付けることができる。吸引チューブ３は、その柔軟性によって段部２２３bの表面に密着するため、一旦、取付部２２３に取り付けられた吸引チューブ３は、段部２２３bが抵抗になって脱落し難い構造になっている。 The end of the suction tube 3 can be attached to the attachment portion 223. The suction tube 3 has a long cylindrical shape and has flexibility. Specifically, insert the suction tube 3 by inserting the stepped portion 223b side of the attachment portion 223 into the inside of the suction tube 3 and pushing the end of the suction tube 3 into contact with the annular rib 223a of the attachment portion 223 Can. The suction tube 3 is in close contact with the surface of the step portion 223b due to its flexibility, so the suction tube 3 once attached to the mounting portion 223 has a structure in which the step portion 223b becomes a resistance and is difficult to drop off.
　吸引チューブ３には、補助部材４が配設されている。 An auxiliary member 4 is disposed in the suction tube 3.
　図３は、本発明の手術用吸引具における補助部材の一実施形態を例示した斜視図である。 FIG. 3 is a perspective view illustrating an embodiment of the assisting member in the surgical suction tool of the present invention.
　図１および図３に例示したように、補助部材４は、中央に開口部４１を有するリング状（略円盤状）に形成されている。外周面部４２は補助部材４の外縁を形成している。補助部材４の内周面部４３は開口部４１に臨んでいる。内周面部４３は周方向に湾曲しているとともに、補助部材４の厚み方向に平行に形成されている。 As illustrated in FIGS. 1 and 3, the auxiliary member 4 is formed in a ring shape (substantially disc shape) having an opening 41 at the center. The outer peripheral surface portion 42 forms the outer edge of the auxiliary member 4. The inner circumferential surface 43 of the auxiliary member 4 faces the opening 41. The inner circumferential surface portion 43 is curved in the circumferential direction, and is formed parallel to the thickness direction of the auxiliary member 4.
　内周面部４３には４つの切欠け部４４が設けられており、２つの切欠け部４４同士が開口部４１を跨いで互いに対向している。切欠け部４４は、内周面部４３から外側（外周面部４２側）に向かって略円弧状に凹んで形成されており、補助部材４の厚さ方向に連通している。 Four notches 44 are provided in the inner circumferential surface 43, and the two notches 44 cross each other across the opening 41. The notched portion 44 is formed in a substantially arc shape recessed from the inner circumferential surface portion 43 toward the outer side (the outer circumferential surface portion 42 side), and communicates in the thickness direction of the auxiliary member 4.
　内周面部４３の内側の開口部４１は、切欠け部４４の部分を除き、略円形状に形成されている。内周面部４３の内側の開口部４１の径は、吸引チューブ３の外径に対応して設計されている。 The opening 41 on the inner side of the inner circumferential surface 43 is formed in a substantially circular shape except for the notch 44. The diameter of the opening 41 on the inner side of the inner peripheral surface portion 43 is designed to correspond to the outer diameter of the suction tube 3.
　補助部材４の材料は特に限定されないが、例えば、金属、セラミックス、樹脂などを材料として成形されたものを例示することができる。 Although the material of the auxiliary member 4 is not particularly limited, for example, those formed of metal, ceramic, resin or the like as a material can be exemplified.
　図４は、図１におけるＡ－Ａ’矢視断面図である。 FIG. 4 is a cross-sectional view taken along the line A-A 'in FIG.
　図１および図４に例示したように、補助部材４の開口部４１内に吸引チューブ３が挿入されると、補助部材４の内周面部４３によって吸引チューブ３の外周面３１が保持される。吸引チューブ３は柔軟性を有しており、吸引チューブ３の外径と補助部材４の内周面部４３の径は対応しているため、補助部材４は、吸引チューブ３を安定に保持しつつも、吸引チューブ３の長手方向に沿って自在にスライドさせることができる。したがって、吸引チューブ３の長手方向の所望の位置に補助部材４を配置することができる。 As illustrated in FIGS. 1 and 4, when the suction tube 3 is inserted into the opening 41 of the auxiliary member 4, the outer peripheral surface 31 of the suction tube 3 is held by the inner peripheral surface portion 43 of the auxiliary member 4. Since the suction tube 3 has flexibility and the outer diameter of the suction tube 3 and the diameter of the inner peripheral surface 43 of the auxiliary member 4 correspond to each other, the auxiliary member 4 holds the suction tube 3 stably. Also, it can be freely slid along the longitudinal direction of the suction tube 3. Therefore, the auxiliary member 4 can be disposed at a desired position in the longitudinal direction of the suction tube 3.
　そして、補助部材４の内周面部４３によって吸引チューブ３の外周面３１が保持されると、補助部材４の内周面部４３と吸引チューブ３の外周面３１が当接する一方で、切欠け部４４と吸引チューブ３の外周面３１との間には通気口４５としての空隙が形成される。 Then, when the outer peripheral surface 31 of the suction tube 3 is held by the inner peripheral surface portion 43 of the auxiliary member 4, the inner peripheral surface portion 43 of the auxiliary member 4 and the outer peripheral surface 31 of the suction tube 3 abut each other. A space as an air vent 45 is formed between the and the outer peripheral surface 31 of the suction tube 3.
　さらに、図１～図４に加え、図５とともに、本発明の手術用吸引具の一実施形態について説明する。図５は、本発明の手術用吸引具によって血液などを吸引した状態を例示する概要図である。 Furthermore, in addition to FIGS. 1 to 4, one embodiment of the surgical suction tool of the present invention will be described together with FIG. FIG. 5 is a schematic view illustrating a state in which blood or the like is sucked by the surgical suction tool of the present invention.
　ヘッド部２は、内部空間Ｒと連通する複数の貫通孔２１１を備えているため、貫通孔２１１から吸引された血液などは、吸引部２２１の先端の吸引口２２１aから吸入路Ｌを通じて、接続する吸引チューブ３へと運ばれる。また、係合部２２２の傾斜部２２２bには導入孔２２２cが形成されており、環状リブ２２３aと係合部２２２の傾斜部２２２bとの間には空隙Ｓが形成されている。このため、例えば、仮に外筒部２１の貫通孔２１１が閉鎖されたとしても、導入孔２２２cから外筒部２１の内部空間Ｒへ空気を導入することができるため、外筒部２１の先端の貫通孔２１１から血液などの吸引力を維持することができる。 Since the head unit 2 includes a plurality of through holes 211 communicating with the internal space R, blood or the like sucked from the through holes 211 is connected through the suction passage L from the suction port 221 a at the tip of the suction unit 221. It is conveyed to the suction tube 3. Further, an introducing hole 222c is formed in the inclined portion 222b of the engaging portion 222, and a gap S is formed between the annular rib 223a and the inclined portion 222b of the engaging portion 222. Therefore, for example, even if the through hole 211 of the outer cylinder portion 21 is closed, air can be introduced from the introduction hole 222c into the internal space R of the outer cylinder portion 21. The suction force of blood or the like can be maintained from the through hole 211.
　また、手術においては、吸引チューブ３の周囲が付近の組織Ｔに覆われることがある。この場合、従来の手術用吸引具では、手術用吸引ヘッドによる吸引力（手術用吸引ヘッド内の負圧）を確保するための空気の流れが組織Ｔによって阻害され、血液Ｂなどを確実に吸引することが難しい場合がある。 Further, in the operation, the periphery of the suction tube 3 may be covered by the nearby tissue T. In this case, in the conventional suction tool for surgery, the flow of air for securing the suction force (negative pressure in the suction head for surgery) by the suction head for surgery is blocked by the tissue T, and the blood B or the like is reliably suctioned. It can be difficult to do.
　これに対して、この実施形態の手術用吸引具１は、吸引チューブ３にリング状の補助部材４が配設されており、外周面部４２が外側に突出している。また、補助部材４の開口部４１内に吸引チューブ３が挿入されて、内周面部４３によって吸引チューブ３の外面が保持されているとともに、吸引チューブ３と補助部材４の内周面部４３の間には、切欠け部４４による通気口４５が形成されている。このため、手術用吸引具１は、吸引チューブ３の周囲に組織Ｔが接近する場合であっても、補助部材４の外周面部４２によって組織Ｔとの間に隙間を確保することができるとともに、その隙間が不十分な場合であっても、通気口４５を介して外部からヘッド部２側に空気を流通させることができる。したがって、手術用吸引具１による吸引力（ヘッド部２内の負圧）を確実に確保することができ、血液Ｂなどを確実に吸引することができる。 On the other hand, in the suction tool for surgery 1 of this embodiment, the ring-shaped auxiliary member 4 is disposed on the suction tube 3, and the outer peripheral surface portion 42 protrudes outward. Further, the suction tube 3 is inserted into the opening 41 of the auxiliary member 4, and the outer surface of the suction tube 3 is held by the inner circumferential surface portion 43, and between the suction tube 3 and the inner circumferential surface 43 of the auxiliary member 4 The vent 45 by the notch 44 is formed in the. Therefore, even when the tissue T approaches the periphery of the suction tube 3, the surgical suction tool 1 can secure a gap with the tissue T by the outer peripheral surface portion 42 of the auxiliary member 4, Even when the gap is insufficient, air can be circulated from the outside to the head portion 2 side through the vent 45. Therefore, the suction force (negative pressure in the head portion 2) by the surgical suction tool 1 can be reliably ensured, and blood B or the like can be reliably suctioned.
　本発明の手術用吸引具１は、ヘッド部２と接続する吸引チューブ３に補助部材４が配設されている。ヘッド部２は、内部空間Ｒと連通する貫通孔２１１を備えた外筒部２１と、この外筒部２１の端部に設けられた接続部２２とを備えている。吸引チューブ３は長尺な円筒状である。補助部材４は、中央に開口部４１が形成されたリング状であり、かつ、その開口部４１に隣接する内周面部４３には切欠け部４４が設けられている。ヘッド部２の接続部２２に吸引チューブ３の一端が接続している。補助部材４の開口部４１内に吸引チューブ３が挿入されて、内周面部４３によって吸引チューブ３の外周面３１の一部が保持されているとともに、補助部材４は吸引チューブ３の長手方向に沿ってスライド自在である。吸引チューブ３と補助部材４の切欠け部４４の間には通気口４５が形成されている。 In the suction tool for surgery 1 of the present invention, the auxiliary member 4 is disposed in the suction tube 3 connected to the head portion 2. The head portion 2 includes an outer cylindrical portion 21 having a through hole 211 communicating with the inner space R, and a connection portion 22 provided at an end of the outer cylindrical portion 21. The suction tube 3 has a long cylindrical shape. The auxiliary member 4 has a ring shape with an opening 41 formed at the center, and a notch 44 is provided on the inner circumferential surface 43 adjacent to the opening 41. One end of the suction tube 3 is connected to the connection portion 22 of the head portion 2. The suction tube 3 is inserted into the opening 41 of the auxiliary member 4, and a part of the outer peripheral surface 31 of the suction tube 3 is held by the inner circumferential surface portion 43, and the auxiliary member 4 extends in the longitudinal direction of the suction tube 3. It is slidable along. A vent 45 is formed between the suction tube 3 and the notch 44 of the auxiliary member 4.
　本発明の補助部材４は、中央に開口部４１が形成されたリング状であり、円筒状の吸引チューブ３の外面にスライド自在に取付けられる。開口部４１に隣接する内周面部４３には切欠け部４４が設けられており、補助部材４の開口部４１に吸引チューブ３が挿入されると、内周面部４３によって吸引チューブ３の外周面３１の一部を保持可能であるとともに、吸引チューブ３と補助部材４の切欠け部４４の間には通気口４５が形成される。 The auxiliary member 4 of the present invention is in the form of a ring having an opening 41 at its center, and is slidably attached to the outer surface of the cylindrical suction tube 3. The notch part 44 is provided in the inner peripheral surface part 43 adjacent to the opening part 41, and when the suction tube 3 is inserted into the opening part 41 of the auxiliary member 4, the outer peripheral surface of the suction tube 3 is formed by the inner peripheral surface part 43. A part of 31 can be held, and a vent 45 is formed between the suction tube 3 and the notch 44 of the auxiliary member 4.
　本発明の手術用吸引具および補助部材は、以上の実施形態に限定されることはない。例えば、ヘッド部の形態は特に限定されず、特許文献１～５に示される形態であってもよい。 The surgical suction tool and auxiliary member of the present invention are not limited to the above embodiments. For example, the form of the head portion is not particularly limited, and may be the form shown in Patent Documents 1 to 5.
　また、補助部材の内周面部および切欠け部の形態も適宜設計することができる。例えば、補助部材の内周面部は、例えば正面視多角形状であってもよいし、補助部材の切欠け部の形状、数、配設位置なども適宜設計することができる。 Further, the form of the inner peripheral surface portion and the notch portion of the auxiliary member can be appropriately designed. For example, the inner peripheral surface portion of the auxiliary member may have, for example, a polygonal shape in a front view, and the shape, the number, the arrangement position, and the like of the cutout portion of the auxiliary member can be appropriately designed.
　図６（Ａ）～（Ｃ）は、本発明の手術用吸引具における補助部材の別の実施形態を例示した正面図である。図１、図３、図４などで説明した実施形態と共通する部分には同一の符号を付し、以下では説明を一部省略する。 FIGS. 6A to 6C are front views illustrating another embodiment of the assisting member in the surgical suction tool of the present invention. Parts in common with the embodiment described in FIG. 1, FIG. 3, FIG. 4 and the like are given the same reference numerals, and the explanation will be partially omitted below.
　図６（Ａ）に例示した補助部材は、中央に開口部４１を有しており、開口部４１と対向し湾曲する内周面部４３に、３つの切欠け部４４が設けられている。切欠け部４４は、外周面部４２側に向かって断面略円弧状に凹む溝として形成されている。吸引チューブ（図示していない）が開口部４１に挿入されると、切欠け部４４の内側の空間には、断面略半円状の通気口４５が形成される。 The auxiliary member illustrated in FIG. 6A has an opening 41 at the center, and three notches 44 are provided on the inner peripheral surface 43 facing the opening 41 and curving. The notch part 44 is formed as a groove | channel which is dented in the cross-sectional substantially arc shape toward the outer peripheral surface part 42 side. When a suction tube (not shown) is inserted into the opening 41, a vent 45 having a substantially semicircular cross section is formed in the space inside the notch 44.
　図６（Ｂ）に例示した補助部材は、中央に開口部４１を有しており、開口部４１と対向し湾曲する内周面部４３に、４つの切欠け部４４が設けられている。切欠け部４４は、外周面部４２側に向かって、断面略矩形状に凹む溝として形成されている。吸引チューブ（図示していない）が開口部４１に挿入されると、切欠け部４４の内側の空間には、断面略矩形状の通気口４５が形成される。 The auxiliary member illustrated in FIG. 6B has an opening 41 at the center, and four notches 44 are provided on the inner circumferential surface 43 facing the opening 41 and curving. The notch part 44 is formed as a groove | channel which is dented in the cross-sectional substantially rectangular shape toward the outer peripheral surface part 42 side. When a suction tube (not shown) is inserted into the opening 41, an air vent 45 having a substantially rectangular cross section is formed in the space inside the notch 44.
　図６（Ｃ）に例示した補助部材は、央に開口部４１を有しており、開口部４１と対向し湾曲する内周面部４３に、８つの切欠け部４４が設けられている。切欠け部４４は、外周面部４２側に向かって鋭角に凹む断面略三角形状の溝として形成されている。吸引チューブ（図示していない）が開口部４１に挿入されると、切欠け部４４の内側の空間には、断面三角形状の通気口４５が形成される。 The auxiliary member illustrated in FIG. 6C has an opening 41 at the center, and eight notches 44 are provided on the inner circumferential surface 43 facing the opening 41 and curving. The notched portion 44 is formed as a groove having a substantially triangular cross section which is recessed at an acute angle toward the outer peripheral surface portion 42 side. When a suction tube (not shown) is inserted into the opening 41, a vent 45 having a triangular cross section is formed in the space inside the notch 44.
　本発明の手術用吸引具には、図６（Ａ）～（Ｃ）に例示したような補助部材を備えたものが含まれる。このような実施形態においても、吸引チューブの周囲が付近の組織に覆われたとしても、通気口４５によって空気の流入を確保することができるため、血液などを確実に吸引することができる。 The surgical suction tool of the present invention includes one provided with an auxiliary member as illustrated in FIGS. 6 (A) to 6 (C). Also in such an embodiment, even if the circumference of the suction tube is covered with the nearby tissue, the inflow of air can be secured by the vent 45, so that blood or the like can be reliably sucked.
１　　　手術用吸引具
２　　　ヘッド部
２１　　外筒部
２２　　接続部
２１１　貫通孔
３　　　吸引チューブ
３１　　外周面
４　　　補助部材
４１　　開口部
４３　　内周面部
４４　　切欠け部
４５　　通気口  DESCRIPTION OF SYMBOLS 1 Suction tool for operation 2 Head part 21 Outer cylinder part 22 Connection part 211 Through hole 3 Suction tube 31 Outer peripheral surface 4 Auxiliary member 41 Opening part 43 Inner peripheral surface part 44 Notched part 45 Air vent

Claims (2)

  1. 　ヘッド部と接続する吸引チューブに補助部材が配設されている手術用吸引具であって、
    　前記ヘッド部は、内部空間と連通する貫通孔を備えた外筒部と、この外筒部の端部に設けられた接続部とを備え、
    　前記吸引チューブは長尺な円筒状であり、
    　前記補助部材は、中央に開口部が形成されたリング状であり、かつ、その開口部に隣接する内周面部には切欠け部が設けられており、
    　前記ヘッド部の前記接続部に前記吸引チューブの一端が接続し、
    　前記補助部材の前記開口部内に前記吸引チューブが挿入されて、前記内周面部によって前記吸引チューブの外周面の一部が保持されているとともに、前記補助部材は前記吸引チューブの長手方向に沿ってスライド自在であり、前記吸引チューブと前記補助部材の前記切欠け部の間には通気口が形成されていることを特徴とする手術用吸引具。     A surgical suction tool in which an auxiliary member is disposed on a suction tube connected to a head portion,
    The head portion includes an outer cylinder portion provided with a through hole communicating with the inner space, and a connection portion provided at an end portion of the outer cylinder portion.
    The suction tube has a long cylindrical shape,
    The auxiliary member has a ring shape with an opening formed at the center, and a notch is provided on an inner peripheral surface adjacent to the opening,
    One end of the suction tube is connected to the connection portion of the head portion;
    The suction tube is inserted into the opening of the auxiliary member, and a part of the outer peripheral surface of the suction tube is held by the inner circumferential surface portion, and the auxiliary member is along the longitudinal direction of the suction tube. A surgical suction tool characterized in that it is slidable, and a vent is formed between the suction tube and the notch of the auxiliary member.
  2. 　中央に開口部が形成されたリング状であり、円筒状の吸引チューブの外周面にスライド自在に取付け可能な補助部材であって、
    　前記開口部に隣接する内周面部には切欠け部が設けられており、前記開口部に挿入された前記吸引チューブの外周面の一部を前記内周面部によって保持可能であるとともに、前記吸引チューブと前記補助部材の前記内周面部の間には、前記切欠け部による通気口が形成されることを特徴とする補助部材。     A ring-shaped member having an opening at its center, which is an auxiliary member that can be slidably attached to the outer peripheral surface of a cylindrical suction tube,
    A notch is provided in the inner peripheral surface adjacent to the opening, and a part of the outer peripheral surface of the suction tube inserted into the opening can be held by the inner peripheral surface, and the suction is performed. An auxiliary member characterized in that a vent by the notch is formed between the tube and the inner peripheral surface of the auxiliary member.
PCT/JP2018/046623 2017-12-25 2018-12-18 Surgical suction device and auxiliary member for attachment thereto WO2019131343A1 (en)

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JP2017-248396 2017-12-25

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6334022U (en) * 1986-08-20 1988-03-04
JP2002515384A (en) * 1998-05-18 2002-05-28 ハイド−ア−ストロウ インコーポレーテッド Stopper for individual beverage containers
JP2008296925A (en) * 2007-05-29 2008-12-11 Dainippon Printing Co Ltd Paper container for beverage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6334022U (en) * 1986-08-20 1988-03-04
JP2002515384A (en) * 1998-05-18 2002-05-28 ハイド−ア−ストロウ インコーポレーテッド Stopper for individual beverage containers
JP2008296925A (en) * 2007-05-29 2008-12-11 Dainippon Printing Co Ltd Paper container for beverage

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JP2019111224A (en) 2019-07-11

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