JP2019146785A - Surgical instrument - Google Patents
Surgical instrument Download PDFInfo
- Publication number
- JP2019146785A JP2019146785A JP2018033811A JP2018033811A JP2019146785A JP 2019146785 A JP2019146785 A JP 2019146785A JP 2018033811 A JP2018033811 A JP 2018033811A JP 2018033811 A JP2018033811 A JP 2018033811A JP 2019146785 A JP2019146785 A JP 2019146785A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- surgical instrument
- suction
- negative pressure
- soft tissue
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 14
- 230000008602 contraction Effects 0.000 claims description 7
- 210000004872 soft tissue Anatomy 0.000 abstract description 57
- 238000002357 laparoscopic surgery Methods 0.000 abstract description 4
- 210000004185 liver Anatomy 0.000 description 12
- 230000004048 modification Effects 0.000 description 10
- 238000012986 modification Methods 0.000 description 10
- 210000000683 abdominal cavity Anatomy 0.000 description 6
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000002350 laparotomy Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 210000004303 peritoneum Anatomy 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
Description
本発明は、手術器具に関し、特に軟組織の操作に用いる手術器具に関する。 The present invention relates to a surgical instrument, and more particularly to a surgical instrument used for soft tissue manipulation.
従来、患者の外科手術において、様々な形状の鉗子が用いられてきた。鉗子は、臓器等の組織を把持したり、抑えたり、牽引したりするために用いられている。 Conventionally, various types of forceps have been used in patient surgery. The forceps are used to grasp, hold down, or pull a tissue such as an organ.
下記特許文献１には、患者の開腹手術において、腹膜下の臓器を損傷させないように、腹膜だけを吸引し把持することを目的とした医療用吸引式鉗子が記載されている。 Patent Document 1 below describes a medical forceps for the purpose of sucking and grasping only the peritoneum so as not to damage an organ under the peritoneum in a laparotomy of a patient.
従来用いられている一般の鉗子によって肝臓等の軟組織を把持する場合、軟組織に損傷を与えないように安定的に把持することが難しい。しかしながら、患者の腹腔鏡手術を行う場合のように、用いることのできる器具が制限されている状況で、肝臓等の軟組織を安定的に把持したり、抑えたり、牽引したりしたいという要求がある。特許文献１には、患者の開腹手術において用いられる吸引式鉗子が記載されているが、このような器具は腹腔鏡手術において使用することが難しい。 When a soft tissue such as a liver is gripped by a general forceps that has been conventionally used, it is difficult to stably grip the soft tissue without damaging the soft tissue. However, there is a demand for stably grasping, suppressing, or pulling soft tissues such as the liver in a situation where instruments that can be used are limited, such as when performing laparoscopic surgery on patients. . Patent Document 1 describes a suction forceps used in a patient's laparotomy, but such an instrument is difficult to use in laparoscopic surgery.
腹腔鏡手術においては、鋏型鉗子が広く用いられているが、鋏型鉗子で軟組織をつまむと、組織を傷付けてしまうおそれがあった。また、軟組織は、力を加えると容易に変形するため、鋏型鉗子では、軟組織を把持したり、抑えたり、牽引したりといった操作が安定的に行えないことがあった。 In laparoscopic surgery, scissors-type forceps are widely used. However, if a soft tissue is pinched with scissors-type forceps, the tissue may be damaged. In addition, since soft tissue easily deforms when a force is applied, operations such as gripping, suppressing, and pulling the soft tissue may not be stably performed with the scissors-type forceps.
そこで、本発明は、腹腔鏡下で用いることができ、軟組織を傷付けづらく、軟組織を安定的に操作することを支援できる手術器具を提供する。 Therefore, the present invention provides a surgical instrument that can be used under a laparoscope, can hardly damage a soft tissue, and can support stable operation of the soft tissue.
本発明の一態様に係る手術器具は、長手方向に対する軸剛性が曲げ剛性よりも大きいな材質で形成された片持ちの第１梁と、第１梁に重ねて設けられ、長手方向に対する軸剛性が曲げ剛性よりも大きいな材質で形成された片持ちの第２梁と、吸引管に接続され、第１梁及び第２梁を覆うフィルムと、第１梁に設けられた１又は複数の吸引部と、を備え、吸引管は、液体又は気体を吸う第１ポンプに接続され、第１ポンプにより陰圧が加えられ、フィルムにより覆われた第１梁及び第２梁は、陰圧の大きさによって硬さが調整される。 The surgical instrument according to one aspect of the present invention is provided with a cantilevered first beam formed of a material whose axial rigidity in the longitudinal direction is larger than the bending rigidity, and an axial rigidity in the longitudinal direction. Is a cantilevered second beam formed of a material larger than the bending rigidity, a film connected to the suction pipe and covering the first beam and the second beam, and one or more suctions provided on the first beam The suction pipe is connected to a first pump that sucks liquid or gas, negative pressure is applied by the first pump, and the first beam and the second beam covered by the film have a large negative pressure. The hardness is adjusted by the thickness.
この態様によれば、長手方向に対する軸剛性が曲げ剛性よりも大きいな第１梁及び第２梁を、軟組織に沿うように配置して、第１ポンプにより加えられる陰圧によって第１梁及び第２梁を硬化させるとともに、吸引部によって軟組織を吸引することで、軟組織の損傷を抑えつつ、軟組織を安定的に操作することができる。 According to this aspect, the first beam and the second beam whose axial rigidity in the longitudinal direction is larger than the bending rigidity are arranged along the soft tissue, and the first beam and the second beam are generated by the negative pressure applied by the first pump. By hardening the two beams and sucking the soft tissue by the suction portion, the soft tissue can be stably operated while suppressing damage to the soft tissue.
上記態様において、第１梁及び第２梁は、長手方向に対して実質的に伸縮しなくてもよい。 In the above aspect, the first beam and the second beam may not substantially expand and contract in the longitudinal direction.
この態様によれば、第１ポンプにより加えられる陰圧によって第１梁及び第２梁をより硬く硬化させることができ、軟組織をよりしっかりと把持することができる。 According to this aspect, the first beam and the second beam can be hardened and hardened by the negative pressure applied by the first pump, and the soft tissue can be gripped more firmly.
上記態様において、第２梁に設けられ、第２梁をたわみ変形させるアクチュエータをさらに備えてもよい。 The said aspect WHEREIN: You may further provide the actuator which is provided in the 2nd beam and bends and deforms the 2nd beam.
この態様によれば、軟組織に沿うように第２梁をたわみ変形させることで、第２梁と重畳して設けられた第１梁も軟組織に沿うようにたわみ変形され、第１梁に設けられた吸引部によって軟組織を確実に吸引できるようになる。 According to this aspect, by bending and deforming the second beam along the soft tissue, the first beam provided so as to overlap with the second beam is also bent and deformed along the soft tissue and provided on the first beam. The soft tissue can be reliably sucked by the sucking portion.
上記態様において、アクチュエータは、第２ポンプにより加えられる液体又は気体の圧力によって動作してもよい。 In the above aspect, the actuator may be operated by the pressure of the liquid or gas applied by the second pump.
この態様によれば、アクチュエータが液体又は気体の圧力によって動作することで、腹腔鏡下で使用した場合であっても、腹腔内を汚染するおそれが低くなる。 According to this aspect, since the actuator is operated by the pressure of liquid or gas, the possibility of contaminating the abdominal cavity is reduced even when used under a laparoscope.
上記態様において、アクチュエータは、第２梁に沿って延伸する蛇腹状の筒構造を有し、筒構造の延伸方向についての伸縮が、筒構造の径方向についての伸縮よりも容易であってよい。 In the above aspect, the actuator may have a bellows-like cylindrical structure extending along the second beam, and expansion and contraction in the extending direction of the cylindrical structure may be easier than expansion and contraction in the radial direction of the cylindrical structure.
この態様によれば、筒構造の伸長によって第２梁をたわみ変形させることで、アクチュエータの構造を単純にすることができ、手術器具を小型化できる。 According to this aspect, the structure of the actuator can be simplified and the surgical instrument can be miniaturized by bending and deforming the second beam by extending the cylindrical structure.
上記態様において、１又は複数の吸引部は、吸引管と異なる経路で第１ポンプに接続され、第１ポンプにより陰圧が加えられてもよい。 In the above aspect, the one or more suction units may be connected to the first pump through a path different from the suction pipe, and negative pressure may be applied by the first pump.
この態様によれば、吸引部が、吸引管と異なる経路で第１ポンプに接続されることで、吸引部から血液等の液体が吸引される場合であっても、第１梁及び第２梁の界面に血液等が入り込むことが無くなり、第１梁及び第２梁の硬度が一定に保たれる。 According to this aspect, the first beam and the second beam can be obtained even when a liquid such as blood is sucked from the suction unit by connecting the suction unit to the first pump through a path different from the suction pipe. No blood or the like enters the interface, and the hardness of the first beam and the second beam is kept constant.
上記態様において、１又は複数の吸引部は、液体又は気体を吸う第３ポンプに接続され、第３ポンプにより陰圧が加えられてもよい。 In the above aspect, the one or more suction units may be connected to a third pump that sucks liquid or gas, and negative pressure may be applied by the third pump.
この態様によれば、吸引部が、第１ポンプと別体の第３ポンプに接続されることで、第１梁及び第２梁の硬さ調整と独立して吸引部の吸引力を調整することができる。 According to this aspect, the suction part is connected to the third pump separate from the first pump, thereby adjusting the suction force of the suction part independently of the hardness adjustment of the first beam and the second beam. be able to.
上記態様において、吸引管は、陰圧を保った状態で第１ポンプから切り離し可能であってもよい。 In the above aspect, the suction pipe may be detachable from the first pump while maintaining a negative pressure.
この態様によれば、手術器具を第１ポンプから切り離した状態で軟組織に吸着させることができ、腹腔等の狭い空間であっても複数の手術器具によって軟組織を操作することができる。 According to this aspect, the surgical instrument can be adsorbed to the soft tissue in a state of being separated from the first pump, and the soft tissue can be manipulated by a plurality of surgical instruments even in a narrow space such as the abdominal cavity.
上記態様において、鉗子によって把持される把持部をさらに備えてもよい。 The said aspect WHEREIN: You may further provide the holding part hold | gripped with forceps.
この態様によれば、軟組織に吸着した手術器具を一般的な鉗子で操作することができ、軟組織をより自由に操作することができる。 According to this aspect, the surgical instrument adsorbed to the soft tissue can be operated with the general forceps, and the soft tissue can be operated more freely.
上記態様において、１又は複数の吸引部は、吸引口がメッシュで覆われていてもよい。 In the above aspect, the suction port of one or more suction units may be covered with a mesh.
この態様によれば、１又は複数の吸引部によって軟組織を吸引する場合における応力の集中を防ぐことができ、軟組織の損傷を抑制することができる。 According to this aspect, stress concentration when soft tissue is sucked by one or a plurality of suction portions can be prevented, and damage to the soft tissue can be suppressed.
本発明によれば、腹腔鏡下で用いることができ、軟組織を傷付けづらく、軟組織を安定的に操作することを支援できる手術器具を提供することができる。 According to the present invention, it is possible to provide a surgical instrument that can be used under a laparoscope, can hardly damage a soft tissue, and can support stable operation of the soft tissue.
添付図面を参照して、本発明の実施形態について説明する。なお、各図において、同一の符号を付したものは、同一又は同様の構成を有する。 Embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in each figure, what attached | subjected the same code | symbol has the same or similar structure.
図１は、本発明の実施形態に係る手術器具１０の概略図である。同図では、本実施形態に係る手術器具１０を肝臓に吸着させて、鋏型鉗子１００で把持する様子を示している。ここで、肝臓は、手術器具１０による操作の対象となる軟組織の一例である。同図では、アクチュエータによって手術器具１０をたわみ変形させて、手術器具１０を肝臓の表面に沿うように変形させ、第１ポンプによって吸引管に陰圧を加えて、第１梁及び第２梁を硬化させるとともに、吸引部によって肝臓を吸着した状態を示している。手術器具１０は、鋏型鉗子１００によって把持される把持部１０ａを備える。これにより、軟組織に吸着した手術器具１０を一般的な鉗子で操作することができ、軟組織をより自由に操作することができる。また、鋏型鉗子１００によって把持部１０ａを把持し、軟組織を直接挟まないことで、軟組織の損傷を防ぐことができる。なお、本例では鋏型鉗子１００を示しているが、把持部１０ａを把持する鉗子としては、任意のものを用いることができる。 FIG. 1 is a schematic view of a surgical instrument 10 according to an embodiment of the present invention. The figure shows a state where the surgical instrument 10 according to the present embodiment is adsorbed to the liver and is gripped by the scissors-type forceps 100. Here, the liver is an example of soft tissue that is a target of operation by the surgical instrument 10. In the figure, the surgical instrument 10 is bent and deformed by an actuator, the surgical instrument 10 is deformed along the surface of the liver, and a negative pressure is applied to the suction pipe by the first pump, so that the first beam and the second beam are deformed. While hardening, the state which adsorb | sucked the liver by the suction part is shown. The surgical instrument 10 includes a grip portion 10 a that is gripped by the scissors-type forceps 100. Thereby, the surgical instrument 10 adsorbed to the soft tissue can be operated with general forceps, and the soft tissue can be operated more freely. In addition, the gripping portion 10a is gripped by the scissors-type forceps 100 and the soft tissue is not directly pinched, thereby preventing the soft tissue from being damaged. In addition, although the scissors-type forceps 100 are shown in this example, any forceps can be used as the forceps for gripping the grip portion 10a.
図２は、本発明の実施形態に係る手術器具１０の側面図である。手術器具１０は、長手方向に対する軸剛性が曲げ剛性よりも大きいな材質で形成された片持ちの第１梁１１と、第１梁１１に重ねて設けられ、長手方向に対する軸剛性が曲げ剛性よりも大きいな材質で形成された片持ちの第２梁１２と、吸引管１３に接続され、第１梁１１及び第２梁１２を覆うフィルム１４と、第１梁１１に設けられた１又は複数の吸引部１５と、を含む。ここで、長手方向に対する軸剛性が曲げ剛性よりも大きいとは、ある力を梁の長手方向に加えた場合の伸縮率が、同じ力を梁の先端の長手方向に直交する方向に加えた場合のたわみ角よりも小さいことを意味してよい。第１梁１１及び第２梁１２は、長手方向に対して実質的に伸縮しない材質で形成されてよく、例えばストリングを内包したゴムやビニールである合成皮革や、ベルト素材で形成されてよい。ここで、長手方向に対して実質的に伸縮しないとは、人が加えられる程度の応力（例えば数百ｋＰａ）を長手方向に与えた場合に、ひずみが０．０１程度よりも小さいことを意味してよい。本実施形態に係る手術器具１０の場合、第１梁１１及び第２梁１２を重ねた合計の厚さは、５ｍｍ程度である。第１梁１１のアクチュエータ１６が設けられる側の面は、フィルム１４と接着されていてよい。また、第２梁１２の吸引部１５が設けられる側の面は、フィルム１４と接着されていてよい。ただし、吸引部１５の吸引口は、フィルム１４によって覆われず、第１梁１１及び第２梁１２の間の空隙を介して吸引管１３に繋がっている。吸引部１５は、３ｍｍ程度の厚さである。 FIG. 2 is a side view of the surgical instrument 10 according to the embodiment of the present invention. The surgical instrument 10 is provided with a cantilevered first beam 11 made of a material whose axial rigidity in the longitudinal direction is larger than the bending rigidity, and the first beam 11 so as to overlap with the bending rigidity. A cantilevered second beam 12 made of a larger material, a film 14 connected to the suction pipe 13 and covering the first beam 11 and the second beam 12, and one or more provided on the first beam 11. A suction part 15. Here, the axial rigidity with respect to the longitudinal direction is greater than the bending rigidity. When a certain force is applied to the longitudinal direction of the beam, the expansion / contraction rate is the same force applied to the direction perpendicular to the longitudinal direction of the beam end. It may mean that it is smaller than the deflection angle. The first beam 11 and the second beam 12 may be formed of a material that does not substantially expand and contract in the longitudinal direction. For example, the first beam 11 and the second beam 12 may be formed of rubber or vinyl-containing synthetic leather or a belt material. Here, the fact that it does not substantially expand and contract in the longitudinal direction means that the strain is smaller than about 0.01 when a stress (for example, several hundred kPa) to which a person is applied is applied in the longitudinal direction. You can do it. In the case of the surgical instrument 10 according to this embodiment, the total thickness of the first beam 11 and the second beam 12 overlapped is about 5 mm. The surface of the first beam 11 on which the actuator 16 is provided may be bonded to the film 14. Further, the surface of the second beam 12 on the side where the suction portion 15 is provided may be bonded to the film 14. However, the suction port of the suction part 15 is not covered with the film 14 and is connected to the suction pipe 13 through a gap between the first beam 11 and the second beam 12. The suction part 15 has a thickness of about 3 mm.
第１梁１１と第２梁１２の間の空隙は、吸引管１３に繋がっており、吸引管１３は、液体又は気体を吸う第１ポンプ４０に接続され、第１ポンプ４０により陰圧が加えられる。吸引管１３に陰圧が加えられることで、第１梁１１と第２梁１２の間の空隙に存在する気体又は液体が吸引され、第１梁１１と第２梁１２が密着することとなる。同時に、吸引部１５に吸引力が与えられる。フィルム１４により覆われた第１梁１１及び第２梁１２は、第１ポンプ４０により加えられる陰圧の大きさによって硬さが調整される。第１ポンプ４０により陰圧が加えられていない状態では、第１梁１１と第２梁１２の間に空隙が存在し、第１梁１１と第２梁１２はほとんど自由に屈曲変形できる。一方、第１ポンプ４０により陰圧が加えられると、第１梁１１と第２梁１２が密着し、第１梁１１と第２梁１２が一本の梁となる。第１梁１１と第２梁１２が密着して一本の梁となると、全体として梁の厚さが２倍となり、断面二次モーメントが増大することで、第１梁１１及び第２梁１２が曲げづらくなり、第１梁１１及び第２梁１２が実効的に硬くなる。第１梁１１及び第２梁１２の硬さは、第１梁１１と第２梁１２の密着度合いに応じて大きくなるため、第１ポンプ４０による陰圧の大きさによって、第１梁１１及び第２梁１２の硬さを調整することができる。また、第１ポンプ４０により陰圧が加えられると、長手方向に対する軸剛性が曲げ剛性よりも大きいな材質で形成された第１梁１１及び第２梁１２が圧縮されて、第１梁１１及び第２梁１２が実効的に硬くなる。第１梁１１及び第２梁１２の硬さは、第１梁１１及び第２梁１２を圧縮する圧縮力に応じて大きくなるため、第１ポンプ４０による陰圧の大きさによって、第１梁１１及び第２梁１２の硬さを調整することができる。 The gap between the first beam 11 and the second beam 12 is connected to the suction pipe 13, and the suction pipe 13 is connected to the first pump 40 that sucks liquid or gas, and negative pressure is applied by the first pump 40. It is done. By applying a negative pressure to the suction pipe 13, the gas or liquid existing in the gap between the first beam 11 and the second beam 12 is sucked, and the first beam 11 and the second beam 12 come into close contact with each other. . At the same time, a suction force is applied to the suction unit 15. The hardness of the first beam 11 and the second beam 12 covered with the film 14 is adjusted by the magnitude of the negative pressure applied by the first pump 40. In a state where no negative pressure is applied by the first pump 40, there is a gap between the first beam 11 and the second beam 12, and the first beam 11 and the second beam 12 can be bent and deformed almost freely. On the other hand, when a negative pressure is applied by the first pump 40, the first beam 11 and the second beam 12 come into close contact with each other, and the first beam 11 and the second beam 12 become one beam. When the first beam 11 and the second beam 12 are brought into close contact to form a single beam, the thickness of the beam as a whole is doubled, and the second moment of the cross section is increased, so that the first beam 11 and the second beam 12 are increased. Becomes difficult to bend, and the first beam 11 and the second beam 12 are effectively hardened. Since the hardness of the first beam 11 and the second beam 12 increases according to the degree of adhesion between the first beam 11 and the second beam 12, the first beam 11 and the second beam 12 depend on the magnitude of the negative pressure by the first pump 40. The hardness of the second beam 12 can be adjusted. Further, when a negative pressure is applied by the first pump 40, the first beam 11 and the second beam 12 formed of a material whose axial rigidity in the longitudinal direction is larger than the bending rigidity are compressed, and the first beam 11 and The second beam 12 is effectively hardened. Since the hardness of the first beam 11 and the second beam 12 increases according to the compressive force that compresses the first beam 11 and the second beam 12, the first beam 11 depends on the magnitude of the negative pressure by the first pump 40. 11 and the hardness of the 2nd beam 12 can be adjusted.
本実施形態に係る手術器具１０は、第２梁１２に設けられ、第２梁１２をたわみ変形させるアクチュエータ１６を備える。アクチュエータ１６は、第２ポンプ４２により加えられる液体又は気体の圧力によって動作する。アクチュエータ１６は、２ｍｍ程度の厚さであり、第２ポンプ４２によって加えられる正の圧力によって動作する。第２ポンプ４２によってアクチュエータ１６に正圧が加えられると、アクチュエータ１６には、長手方向に伸びる力が加わる。アクチュエータ１６は第２梁と接着されているため、アクチュエータ１６が長手方向に伸びると第２梁の上面に対して長手方向に伸びる力を加えることとなり、第２梁１２をたわみ変形させることとなる。 The surgical instrument 10 according to the present embodiment includes an actuator 16 that is provided on the second beam 12 and deflects and deforms the second beam 12. The actuator 16 is operated by the pressure of the liquid or gas applied by the second pump 42. The actuator 16 has a thickness of about 2 mm and is operated by a positive pressure applied by the second pump 42. When a positive pressure is applied to the actuator 16 by the second pump 42, a force extending in the longitudinal direction is applied to the actuator 16. Since the actuator 16 is bonded to the second beam, when the actuator 16 extends in the longitudinal direction, a force that extends in the longitudinal direction is applied to the upper surface of the second beam, and the second beam 12 is bent and deformed. .
図３は、本発明の実施形態に係る手術器具１０の底面図である。同図では、第１梁１１の下面側を示しており、複数の吸引部１５の吸引口を図示している。複数の吸引部１５は、それぞれ吸引口の直径が５ｍｍ程度であり、８ｍｍ程度の間隔で５つ設けられている。第１梁１１及び第２梁１２の長さは４５ｍｍ程度であり、幅は６ｍｍ程度である。また、吸引管１３の取り付け位置から第１梁１１及び第２梁１２の先端までの距離は、６３ｍｍ程度となっている。もっとも、このような寸法は一例に過ぎず、任意に変更することができる。また、吸引部１５の形状も任意に変更することができる。 FIG. 3 is a bottom view of the surgical instrument 10 according to the embodiment of the present invention. In the figure, the lower surface side of the first beam 11 is shown, and the suction ports of the plurality of suction portions 15 are shown. The plurality of suction portions 15 each have a suction port diameter of about 5 mm and are provided at intervals of about 8 mm. The length of the first beam 11 and the second beam 12 is about 45 mm, and the width is about 6 mm. The distance from the attachment position of the suction tube 13 to the tips of the first beam 11 and the second beam 12 is about 63 mm. However, such dimensions are merely examples, and can be arbitrarily changed. Moreover, the shape of the suction part 15 can also be changed arbitrarily.
本実施形態に係る手術器具１０を軟組織に吸着させた後、吸引管１３をクリップ等で閉鎖して吸引部１５による吸引力を保ったまま、軟組織上に残すこともできる。すなわち、吸引管１３は、陰圧を保った状態で第１ポンプ４０から切り離し可能である。手術器具１０を軟組織上に残すことで、例えば従来の鋏型鉗子１００で把持部１０ａをつまんで操作することができる。従来の鋏型鉗子１００は、軟組織を直接つまむと軟組織を傷付けるおそれがあったが、軟組織に吸着させた手術器具１０の把持部１０ａをつまむことで、軟組織を傷付けずに、軟組織を間接的に把持したり、抑えたり、牽引したりといった操作を安定的に行うことができるようになる。また、手術器具１０を軟組織上に残すことで、従来の鉗子で手術器具１０を抑えたり押したりすることで、軟組織を間接的に抑えたり押したりする操作を安定的に行うことができるようになる。また、腹腔等の狭い空間であっても複数の手術器具１０によって軟組織を操作することができる。 After the surgical instrument 10 according to the present embodiment is adsorbed to the soft tissue, the suction tube 13 can be closed with a clip or the like and left on the soft tissue while maintaining the suction force by the suction unit 15. That is, the suction pipe 13 can be disconnected from the first pump 40 while maintaining a negative pressure. By leaving the surgical instrument 10 on the soft tissue, for example, the grasping portion 10a can be pinched and operated with the conventional scissors-type forceps 100. The conventional scissors-type forceps 100 has a risk of damaging the soft tissue when directly pinching the soft tissue. However, by pinching the grasping portion 10a of the surgical instrument 10 adsorbed to the soft tissue, the soft tissue is indirectly injured without damaging the soft tissue. Operations such as gripping, restraining, and towing can be stably performed. Further, by leaving the surgical instrument 10 on the soft tissue, it is possible to stably perform the operation of indirectly suppressing or pushing the soft tissue by suppressing or pushing the surgical instrument 10 with conventional forceps. Become. Further, even in a narrow space such as the abdominal cavity, the soft tissue can be manipulated by the plurality of surgical instruments 10.
１又は複数の吸引部１５は、吸引口がメッシュ１５ａで覆われていてよい。吸引部１５によって軟組織を吸引する場合、軟組織に加わる応力は、吸引口のエッジに集中することがある。このようにメッシュ１５ａを設けることで、１又は複数の吸引部１５によって軟組織を吸引する場合における応力の集中を防ぐことができ、軟組織の損傷を抑制することができる。 The suction port of one or more suction units 15 may be covered with a mesh 15a. When the soft tissue is sucked by the suction part 15, the stress applied to the soft tissue may concentrate on the edge of the suction port. By providing the mesh 15a in this way, it is possible to prevent stress concentration when soft tissue is sucked by one or a plurality of suction portions 15, and damage to the soft tissue can be suppressed.
図４は、本発明の実施形態に係る手術器具１０の上面図である。同図では、アクチュエータ１６の上面側を示しており、複数の吸引部１５の吸引口を図示している。アクチュエータ１６は、第２梁１２に沿って延伸する蛇腹状の筒構造を有し、筒構造の延伸方向についての伸縮が、筒構造の径方向についての伸縮よりも容易となっている。アクチュエータ１６は、長さが４５ｍｍ程度であり、幅は６ｍｍ程度である。アクチュエータ１６は、第２梁１２とほぼ同じ長さ及び幅を有する。ただし、第２ポンプ４２によりアクチュエータ１６の筒構造の内部に正の圧力が加えられると、筒構造は長くなり、径も多少膨らむ。 FIG. 4 is a top view of the surgical instrument 10 according to the embodiment of the present invention. In the figure, the upper surface side of the actuator 16 is shown, and the suction ports of the plurality of suction portions 15 are shown. The actuator 16 has a bellows-like cylindrical structure extending along the second beam 12, and expansion and contraction in the extending direction of the cylindrical structure is easier than expansion and contraction in the radial direction of the cylindrical structure. The actuator 16 has a length of about 45 mm and a width of about 6 mm. The actuator 16 has substantially the same length and width as the second beam 12. However, when a positive pressure is applied to the inside of the cylinder structure of the actuator 16 by the second pump 42, the cylinder structure becomes long and the diameter also expands somewhat.
アクチュエータ１６の筒構造は、筒状の延伸可能なゴムの周りをストリングで螺旋状に巻くことで形成されてよい。アクチュエータ１６の筒構造は、第２梁１２と接着され、第２ポンプ４２によって筒構造の内部に正の圧力が加えられて長手方向に伸びると、第２梁１２の上面に対して長手方向に伸びる力を加えることとなり、第２梁１２をたわみ変形させることとなる。このように、筒構造の伸長によって第２梁１２をたわみ変形させることで、アクチュエータ１６の構造を単純にすることができ、手術器具１０を小型化できる。 The cylindrical structure of the actuator 16 may be formed by winding a cylindrical stretchable rubber around a spiral with a string. The cylinder structure of the actuator 16 is bonded to the second beam 12, and when a positive pressure is applied to the inside of the cylinder structure by the second pump 42 to extend in the longitudinal direction, the cylinder 16 in the longitudinal direction with respect to the upper surface of the second beam 12. An extension force is applied, and the second beam 12 is bent and deformed. Thus, by bending and deforming the second beam 12 by extending the cylindrical structure, the structure of the actuator 16 can be simplified, and the surgical instrument 10 can be reduced in size.
図５は、本発明の実施形態に係る手術器具１０と第１ポンプ４０及び第２ポンプ４２との接続を示す図である。同図では、腹腔鏡下で手術器具１０を用いる場合に、手術器具１０と第１ポンプ４０及び第２ポンプ４２がどのように配置されるかを示している。 FIG. 5 is a diagram showing the connection between the surgical instrument 10 and the first pump 40 and the second pump 42 according to the embodiment of the present invention. The figure shows how the surgical instrument 10, the first pump 40, and the second pump 42 are arranged when the surgical instrument 10 is used under a laparoscope.
手術器具１０は、シャフト３０の一部とともに腹腔内に挿入される。シャフト３０内部には、一端が吸引管１３に接続され、他端が第１ポンプ４０に接続される第１経路Ａと、一端がアクチュエータ１６に接続され、他端が第２ポンプ４２に接続される第２経路Ｂとが設けられている。本例の場合、第１ポンプ４０は、空気を吸引し、吸引管１３に陰圧を加えて、第１梁１１及び第２梁１２を密着させるとともに、吸引部１５に吸引力を与える。第２ポンプ４２は、空気を吐出し、アクチュエータ１６に正圧を加えて、第２梁１２及び第１梁１１をたわみ変形させる。手術器具１０を腹腔鏡下で使用する場合、手術器具１０及びシャフト３０を消毒する必要があるが、第１ポンプ４０及び第２ポンプ４２は無消毒で構わない。 The surgical instrument 10 is inserted into the abdominal cavity together with a part of the shaft 30. Inside the shaft 30, one end is connected to the suction pipe 13, the other end is connected to the first pump 40, one end is connected to the actuator 16, and the other end is connected to the second pump 42. The second path B is provided. In the case of this example, the first pump 40 sucks air and applies a negative pressure to the suction pipe 13 to bring the first beam 11 and the second beam 12 into close contact with each other, and also applies a suction force to the suction unit 15. The second pump 42 discharges air and applies a positive pressure to the actuator 16 to bend and deform the second beam 12 and the first beam 11. When the surgical instrument 10 is used under a laparoscope, the surgical instrument 10 and the shaft 30 need to be sterilized, but the first pump 40 and the second pump 42 may be non-sterilized.
図６ａ、図６ｂ及び図６ｃは、本発明の実施形態に係る手術器具１０をアクチュエータ１６によってたわみ変形させた状態を示す図である。図６ａは、第２ポンプ４２によって何ら圧力を加えず、第１梁１１及び第２梁１２をたわみ変形させていない第１状態を示す。図６ｂは、第２ポンプ４２によって３０ｋＰａの圧力を加えて、第１梁１１及び第２梁１２をたわみ変形させた第２状態を示す。図６ｃは、第２ポンプ４２によって６０ｋＰａの圧力を加えて、第１梁１１及び第２梁１２をさらにたわみ変形させた第３状態を示す。 6a, 6b, and 6c are views showing a state where the surgical instrument 10 according to the embodiment of the present invention is bent and deformed by the actuator 16. FIG. FIG. 6 a shows a first state in which no pressure is applied by the second pump 42 and the first beam 11 and the second beam 12 are not deformed flexibly. FIG. 6 b shows a second state in which the first beam 11 and the second beam 12 are bent and deformed by applying a pressure of 30 kPa by the second pump 42. FIG. 6 c shows a third state in which the first beam 11 and the second beam 12 are further bent and deformed by applying a pressure of 60 kPa by the second pump 42.
図６ａ、図６ｂ及び図６ｃに示されるように、第２ポンプ４２によってアクチュエータ１６に圧力を加えると、アクチュエータ１６が設けられた側と反対側に第１梁１１及び第２梁１２がたわみ変形する。また、第２ポンプ４２によって加える圧力を増していくと、第１梁１１及び第２梁１２のたわみ変形量が増加する。このようにして、第１梁１１及び第２梁１２を任意の曲率に変形させることができる。なお、第１ポンプ４０によって陰圧を加えない限り、第１梁１１及び第２梁１２は容易に屈曲変形できる硬さのままである。 As shown in FIGS. 6a, 6b, and 6c, when the pressure is applied to the actuator 16 by the second pump 42, the first beam 11 and the second beam 12 are flexibly deformed on the side opposite to the side where the actuator 16 is provided. To do. Further, when the pressure applied by the second pump 42 is increased, the amount of deflection deformation of the first beam 11 and the second beam 12 increases. In this way, the first beam 11 and the second beam 12 can be deformed to an arbitrary curvature. As long as negative pressure is not applied by the first pump 40, the first beam 11 and the second beam 12 remain in a hardness that can be easily bent and deformed.
図７は、本発明の実施形態に係る手術器具１０により肝臓を把持する過程を示す図である。ここで、肝臓は、手術器具１０による操作の対象となる軟組織の一例である。同図では、手術器具１０をたわみ変形させず、硬化もさせずに肝臓に近付けた状態を示している。この後、第２ポンプ４２によってアクチュエータ１６に圧力を加えて、手術器具１０をたわみ変形させ、手術器具１０を肝臓の表面に沿うように変形させる。そして、第１ポンプ４０によって吸引管１３に陰圧を加えて、第１梁１１及び第２梁１２を硬化させるとともに、吸引部１５によって肝臓を吸着する。その後、吸引管１３を第１ポンプ４０から切り離して、シャフト３０を手術器具１０から切り離すと、図１に示した状態となる。 FIG. 7 is a diagram showing a process of grasping the liver by the surgical instrument 10 according to the embodiment of the present invention. Here, the liver is an example of soft tissue that is a target of operation by the surgical instrument 10. The figure shows a state in which the surgical instrument 10 is brought close to the liver without being deformed or cured. Thereafter, pressure is applied to the actuator 16 by the second pump 42 to cause the surgical instrument 10 to bend and deform to deform the surgical instrument 10 along the surface of the liver. Then, negative pressure is applied to the suction tube 13 by the first pump 40 to harden the first beam 11 and the second beam 12, and the liver is adsorbed by the suction unit 15. Thereafter, when the suction tube 13 is disconnected from the first pump 40 and the shaft 30 is disconnected from the surgical instrument 10, the state shown in FIG.
このように、本実施形態に係る手術器具１０によれば、長手方向に対する軸剛性が曲げ剛性よりも大きいな第１梁１１及び第２梁１２を、軟組織に沿うように配置して、第１ポンプ４０により加えられる陰圧によって第１梁１１及び第２梁１２を硬化させるとともに、吸引部１５によって軟組織を吸着して把持することで、軟組織の損傷を抑えつつ、軟組織を安定的に操作することができる。本実施形態に係る手術器具１０は、小型のため容易に腹腔内に導入することができ、従来の鋏型鉗子では達成できなかった軟組織の安定的な操作を実現することができる。 Thus, according to the surgical instrument 10 according to the present embodiment, the first beam 11 and the second beam 12 whose axial rigidity in the longitudinal direction is larger than the bending rigidity are arranged along the soft tissue, and the first The first beam 11 and the second beam 12 are hardened by the negative pressure applied by the pump 40, and the soft tissue is adsorbed and gripped by the suction portion 15, thereby stably operating the soft tissue while suppressing damage to the soft tissue. be able to. Since the surgical instrument 10 according to the present embodiment is small in size, it can be easily introduced into the abdominal cavity, and a stable operation of soft tissue that cannot be achieved with conventional scissors-type forceps can be realized.
また、本実施形態に係る手術器具１０は、アクチュエータ１６を備えて、軟組織に沿うように第２梁１２をたわみ変形させることで、第２梁１２と重畳して設けられた第１梁１１も軟組織に沿うようにたわみ変形され、第１梁１１に設けられた吸引部１５によって軟組織を確実に吸着できるようになる。さらに、アクチュエータ１６が液体又は気体の圧力によって動作することで、腹腔鏡下で使用した場合であっても、腹腔内を汚染するおそれが低くなる。 In addition, the surgical instrument 10 according to the present embodiment includes the actuator 16 and the first beam 11 provided so as to overlap the second beam 12 by bending and deforming the second beam 12 along the soft tissue. The soft tissue can be reliably adsorbed by the suction portion 15 provided in the first beam 11 by being bent and deformed along the soft tissue. Furthermore, since the actuator 16 is operated by the pressure of liquid or gas, the possibility of contaminating the abdominal cavity is reduced even when used under a laparoscope.
図８は、本発明の実施形態に係る手術器具１０と第１ポンプ４０との接続を示す図である。本実施形態に係る手術器具１０は、吸引管１３が第１ポンプ４０に接続され、第１梁１１及び第２梁１２の間の空隙と、吸引部１５とに第１ポンプ４０によって陰圧が加えられる。ここで、第１梁１１及び第２梁１２の間の空隙は、吸引部１５の開口に通じており、吸引管１３と吸引部１５は、同じ経路で第１ポンプ４０に接続されている。 FIG. 8 is a diagram showing the connection between the surgical instrument 10 and the first pump 40 according to the embodiment of the present invention. In the surgical instrument 10 according to the present embodiment, the suction tube 13 is connected to the first pump 40, and a negative pressure is applied to the gap between the first beam 11 and the second beam 12 and the suction portion 15 by the first pump 40. Added. Here, the gap between the first beam 11 and the second beam 12 communicates with the opening of the suction unit 15, and the suction pipe 13 and the suction unit 15 are connected to the first pump 40 through the same path.
本実施形態に係る手術器具１０は、第１ポンプ４０による吸引経路の途中にエアホール３２を備える。手術器具１０の使用者は、エアホール３２を指で押さえることで、吸引経路を密閉して、第１ポンプ４０による陰圧を吸引管１３及び吸引部１５に加えることができる。エアホール３２を開放すると、第１ポンプ４０による陰圧が吸引管１３及び吸引部１５に伝えられず、第１梁１１及び第２梁１２が弛緩し、吸引部１５による吸引が行われなくなる。もっとも、第１ポンプ４０により吸引管１３及び吸引部１５に陰圧を加えるための構造は、エアホール３２に限られず、例えば開閉可能なバルブを設けることとしてもよい。 The surgical instrument 10 according to the present embodiment includes an air hole 32 in the middle of the suction path by the first pump 40. The user of the surgical instrument 10 can apply the negative pressure by the first pump 40 to the suction tube 13 and the suction unit 15 by pressing the air hole 32 with a finger to seal the suction path. When the air hole 32 is opened, the negative pressure by the first pump 40 is not transmitted to the suction pipe 13 and the suction unit 15, the first beam 11 and the second beam 12 are relaxed, and suction by the suction unit 15 is not performed. But the structure for applying a negative pressure to the suction pipe 13 and the suction part 15 by the 1st pump 40 is not restricted to the air hole 32, For example, it is good also as providing the valve | bulb which can be opened and closed.
図１０は、本発明の実施形態の第１変形例に係る手術器具１０と第１ポンプと４０の接続を示す図である。本変形例に係る手術器具１０は、吸引管１３が第１経路Ｐ１で第１ポンプ４０に接続され、吸引部１５が第２経路Ｐ２で第１ポンプ４０に接続されている点で本実施形態に係る手術器具と相違する。その他の構成について、本変形例に係る手術器具１０は、本実施形態に係る手術器具と同様の構成を備える。 FIG. 10 is a diagram showing the connection between the surgical instrument 10 and the first pump 40 according to the first modification of the embodiment of the present invention. The surgical instrument 10 according to this modification is the present embodiment in that the suction tube 13 is connected to the first pump 40 through the first path P1, and the suction unit 15 is connected to the first pump 40 through the second path P2. It is different from the surgical instrument concerning. For other configurations, the surgical instrument 10 according to the present modification includes the same configuration as the surgical instrument according to the present embodiment.
本変形例に係る手術器具１０では、１又は複数の吸引部１５は、吸引管１３と異なる経路で第１ポンプ４０に接続され、第１ポンプ４０により陰圧が加えられる。このように、吸引部１５が、吸引管１３と異なる経路で第１ポンプ４０に接続されることで、第１梁１１及び第２梁１２の界面に血液等が入り込むことが無くなるため、吸引部１５から血液等の液体が吸引される場合であっても、第１梁１１及び第２梁１２の界面に血液等が入り込んで第１梁１１及び第２梁１２の間の密着性が低下して第１梁１１及び第２梁１２の硬度が低下することが防止され、第１ポンプ４０によって吸引管１３及び吸引部１５に陰圧を加えている間、第１梁１１及び第２梁１２の硬度が一定に保たれる。 In the surgical instrument 10 according to the present modification, the one or more suction units 15 are connected to the first pump 40 through a different path from the suction tube 13, and negative pressure is applied by the first pump 40. Thus, since the suction part 15 is connected to the first pump 40 through a path different from that of the suction pipe 13, blood or the like does not enter the interface between the first beam 11 and the second beam 12. Even when a liquid such as blood is sucked from 15, blood enters the interface between the first beam 11 and the second beam 12 and the adhesion between the first beam 11 and the second beam 12 decreases. Thus, the first beam 11 and the second beam 12 are prevented from decreasing in hardness and the first pump 40 applies negative pressure to the suction pipe 13 and the suction part 15 by the first pump 40. The hardness of is kept constant.
図１１は、本発明の実施形態の第２変形例に係る手術器具１０と第１ポンプ４０及び第３ポンプ４４との接続を示す図である。本変形例に係る手術器具１０は、吸引管１３が第１ポンプ４０に接続され、吸引部１５が第３ポンプ４４に接続されている点で本実施形態に係る手術器具と相違する。その他の構成について、本変形例に係る手術器具１０は、本実施形態に係る手術器具と同様の構成を備える。 FIG. 11 is a diagram illustrating a connection between the surgical instrument 10 and the first pump 40 and the third pump 44 according to the second modification of the embodiment of the present invention. The surgical instrument 10 according to this modification is different from the surgical instrument according to this embodiment in that the suction tube 13 is connected to the first pump 40 and the suction unit 15 is connected to the third pump 44. For other configurations, the surgical instrument 10 according to the present modification includes the same configuration as the surgical instrument according to the present embodiment.
本変形例に係る手術器具１０では、１又は複数の吸引部１５は、液体又は気体を吸う第３ポンプ４４に接続され、第３ポンプ４４により陰圧が加えられる。このように、吸引部１５が、第１ポンプ４０と別体の第３ポンプ４４に接続されることで、第１梁１１及び第２梁１２の硬さ調整と独立して吸引部１５の吸引力を調整することができる。 In the surgical instrument 10 according to the present modification, the one or more suction units 15 are connected to the third pump 44 that sucks liquid or gas, and negative pressure is applied by the third pump 44. In this way, the suction unit 15 is connected to the third pump 44 that is separate from the first pump 40, so that the suction of the suction unit 15 is independent of the hardness adjustment of the first beam 11 and the second beam 12. The power can be adjusted.
以上説明した実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。実施形態が備える各要素並びにその配置、材料、条件、形状及びサイズ等は、例示したものに限定されるわけではなく適宜変更することができる。また、異なる実施形態で示した構成同士を部分的に置換し又は組み合わせることが可能である。 The embodiments described above are for facilitating the understanding of the present invention, and are not intended to limit the present invention. Each element included in the embodiment and its arrangement, material, condition, shape, size, and the like are not limited to those illustrated, and can be changed as appropriate. In addition, the structures shown in different embodiments can be partially replaced or combined.
１０…手術器具、１０ａ…把持部、１１…第１梁、１２…第２梁、１３…吸引管、１４…フィルム、１５…吸引部、１５ａ…メッシュ、１６…アクチュエータ、２０…接続部、３０…シャフト、３２…エアホール、４０…第１ポンプ、４２…第２ポンプ、４４…第３ポンプ、１００…鋏型鉗子 DESCRIPTION OF SYMBOLS 10 ... Surgical instrument, 10a ... Gripping part, 11 ... 1st beam, 12 ... 2nd beam, 13 ... Suction tube, 14 ... Film, 15 ... Suction part, 15a ... Mesh, 16 ... Actuator, 20 ... Connection part, 30 ... Shaft, 32 ... Air hole, 40 ... First pump, 42 ... Second pump, 44 ... Third pump, 100 ... Scissors-type forceps
Claims (10)
前記第１梁に重ねて設けられ、長手方向に対する軸剛性が曲げ剛性よりも大きい材質で形成された片持ちの第２梁と、
吸引管に接続され、前記第１梁及び前記第２梁を覆うフィルムと、
前記第１梁に設けられた１又は複数の吸引部と、を備え、
前記吸引管は、液体又は気体を吸う第１ポンプに接続され、前記第１ポンプにより陰圧が加えられ、
前記フィルムにより覆われた前記第１梁及び前記第２梁は、前記陰圧の大きさによって硬さが調整される、
手術器具。 A cantilevered first beam formed of a material whose axial rigidity with respect to the longitudinal direction is greater than the bending rigidity;
A cantilevered second beam provided on the first beam and formed of a material having axial rigidity in the longitudinal direction larger than bending rigidity;
A film connected to a suction pipe and covering the first beam and the second beam;
And one or a plurality of suction portions provided on the first beam,
The suction pipe is connected to a first pump that sucks liquid or gas, and negative pressure is applied by the first pump;
The first beam and the second beam covered with the film are adjusted in hardness according to the magnitude of the negative pressure.
Surgical instruments.
請求項１に記載の手術器具。 The first beam and the second beam do not substantially expand and contract in the longitudinal direction;
The surgical instrument according to claim 1.
請求項３に記載の手術器具。 The actuator is operated by the pressure of a liquid or gas applied by a second pump;
The surgical instrument according to claim 3.
請求項３又は４に記載の手術器具。 The actuator has a bellows-like cylindrical structure extending along the second beam, and expansion and contraction in the extending direction of the cylindrical structure is easier than expansion and contraction in the radial direction of the cylindrical structure.
The surgical instrument according to claim 3 or 4.
請求項１から５のいずれか一項に記載の手術器具。 The one or more suction parts are connected to the first pump through a different path from the suction pipe, and negative pressure is applied by the first pump.
The surgical instrument according to any one of claims 1 to 5.
請求項１から５のいずれか一項に記載の手術器具。 The one or more suction units are connected to a third pump that sucks liquid or gas, and negative pressure is applied by the third pump.
The surgical instrument according to any one of claims 1 to 5.
請求項１から７のいずれか一項に記載の手術器具。 The suction pipe is separable from the first pump while maintaining the negative pressure.
The surgical instrument according to any one of claims 1 to 7.
請求項１から８のいずれか一項に記載の手術器具。 Further comprising a gripping part gripped by forceps,
The surgical instrument according to any one of claims 1 to 8.
請求項１から９のいずれか一項に記載の手術器具。 The one or more suction parts have a suction port covered with a mesh,
The surgical instrument according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018033811A JP2019146785A (en) | 2018-02-27 | 2018-02-27 | Surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018033811A JP2019146785A (en) | 2018-02-27 | 2018-02-27 | Surgical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2019146785A true JP2019146785A (en) | 2019-09-05 |
Family
ID=67849772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018033811A Pending JP2019146785A (en) | 2018-02-27 | 2018-02-27 | Surgical instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2019146785A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021261332A1 (en) * | 2020-06-22 | 2021-12-30 | 国立大学法人東京医科歯科大学 | Device with variable rigidity and surgical gripping device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003530943A (en) * | 2000-04-27 | 2003-10-21 | メドトロニック・インコーポレーテッド | Suction type retractor to be attached to internal organs |
| JP2005028006A (en) * | 2003-07-10 | 2005-02-03 | Pentax Corp | Apparatus for holding endoscope, and magnetic anchor remotely guiding system |
| JP2005237945A (en) * | 2003-08-08 | 2005-09-08 | Sumitomo Bakelite Co Ltd | Treatment instrument for coronary artery bypass operation |
| JP2007519501A (en) * | 2004-01-30 | 2007-07-19 | アプライド メディカル リソーシーズ コーポレイション | Multi-function surgical device |
| JP2008011868A (en) * | 2006-06-30 | 2008-01-24 | Jichi Medical Univ | Medical suction forceps |
| WO2015041080A1 (en) * | 2013-09-21 | 2015-03-26 | テルモ株式会社 | Living body insertion tool and suction method |
-
2018
- 2018-02-27 JP JP2018033811A patent/JP2019146785A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003530943A (en) * | 2000-04-27 | 2003-10-21 | メドトロニック・インコーポレーテッド | Suction type retractor to be attached to internal organs |
| JP2005028006A (en) * | 2003-07-10 | 2005-02-03 | Pentax Corp | Apparatus for holding endoscope, and magnetic anchor remotely guiding system |
| JP2005237945A (en) * | 2003-08-08 | 2005-09-08 | Sumitomo Bakelite Co Ltd | Treatment instrument for coronary artery bypass operation |
| JP2007519501A (en) * | 2004-01-30 | 2007-07-19 | アプライド メディカル リソーシーズ コーポレイション | Multi-function surgical device |
| JP2008011868A (en) * | 2006-06-30 | 2008-01-24 | Jichi Medical Univ | Medical suction forceps |
| WO2015041080A1 (en) * | 2013-09-21 | 2015-03-26 | テルモ株式会社 | Living body insertion tool and suction method |
Non-Patent Citations (2)
| Title |
|---|
| 小林健太、外２名: ""可変剛性機構を備えた軟組織吸着装置の検討（会議録）"", 日本コンピュータ外科学会誌, vol. 第１８巻、第４号, JPN6021048023, November 2016 (2016-11-01), pages 309 - 310, ISSN: 0004780966 * |
| 金峻煥、外２名: ""腹腔鏡下手術における肝臓操作のための可変剛性吸着装置〜試作と評価〜（会議録）"", 日本コンピュータ外科学会誌, vol. 第１８巻、第４号, JPN6021048024, November 2016 (2016-11-01), pages 311 - 312, ISSN: 0004653082 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021261332A1 (en) * | 2020-06-22 | 2021-12-30 | 国立大学法人東京医科歯科大学 | Device with variable rigidity and surgical gripping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10835220B2 (en) | Self-articulating joint for a minimally invasive surgical apparatus | |
| US10208925B2 (en) | Soft conformal laparoscopic instrument | |
| JP4569971B2 (en) | Equipment for transporting and administering therapeutic substances | |
| EP2127606A1 (en) | Holding device and holding tool | |
| US20110276083A1 (en) | Bendable shaft for handle positioning | |
| JP7115686B2 (en) | catheter | |
| JP2004195037A (en) | Insertion port of medical treatment instrument | |
| US20160249900A1 (en) | Elastic tube, control device, and medical equipment | |
| JPH08317928A (en) | Medical treatment apparatus | |
| JP2007159794A (en) | Clip for endoscope | |
| JP2019146785A (en) | Surgical instrument | |
| CN111867492B (en) | Clamp unit and mucosa lifting system | |
| JP6306156B2 (en) | Bending device | |
| JP5388031B2 (en) | forceps | |
| JP4344734B2 (en) | Medical treatment instrument insertion port | |
| JP4602580B2 (en) | Curved relief device | |
| JP2005279010A (en) | Internal organ exclusion implement | |
| US11529161B2 (en) | Adaptatively morphing surgical grasper | |
| KR101790442B1 (en) | A surgical device | |
| JP2017153635A (en) | Blood vessel clamp | |
| JP2008259554A (en) | Tissue raising system and indwelling implement | |
| TWI745954B (en) | Organ suction holder | |
| JP5759538B2 (en) | Tissue retractor holder | |
| KR20180101830A (en) | Flexible mechanism | |
| JP2017202093A (en) | Organ-sucking/holding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A80 | Written request to apply exceptions to lack of novelty of invention |
Free format text: JAPANESE INTERMEDIATE CODE: A80 Effective date: 20180328 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210226 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20211126 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20211201 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20220525 |