Device for surgery and smoke evacuation system
A smoke exhaust system and technology for surgery, applied in the field of surgical devices and smoke exhaust systems, can solve problems such as abdominal atrophy, abdominal pressure fluctuations, and surgical obstruction
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no. 1 Embodiment approach
[0029] figure 1 It is a figure explaining an example of the whole structure of the surgical system including the smoke exhaust system of 1st Embodiment of this invention. Such as figure 1 As shown, the surgical system according to the present embodiment is applied to an operation in which an affected part in the abdominal cavity of a patient that has been dilated by delivery of carbon dioxide gas or the like is treated using a surgical instrument such as the electric scalpel 11 under endoscopic observation.
[0030] Such as figure 1 As shown, a trocar 12a for air feeding, a trocar 12b for inserting an endoscope as a first trocar, and a trocar for inserting a treatment instrument as a second trocar are punctured in the abdominal wall of a patient 14. Needle 12c. The sheath 13 is inserted into the abdominal cavity via the trocar 12c, and the endoscope 10 is inserted into the abdominal cavity via the trocar 12b. The electric scalpel 11 penetrates through the sheath 13 .
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no. 2 Embodiment approach
[0056] In the above-mentioned sheath 13 of the first embodiment, the annular seal member 133 provided on the outer peripheral surface on the distal end side has, for example, an O-ring or the like, which has a contact area with the outer peripheral surface of the sheath 13 and the same sheath. The contact area of the pin 12 is the same shape structure. On the other hand, in this embodiment, the shape of the sealing member 133 is different. In addition, the overall structure of the surgical system using the sheath 13 is the same as that of the first embodiment.
[0057] Figure 10 It is a schematic diagram explaining an example of the structure of the sheath 13a of 2nd Embodiment of this invention. Such as Figure 10As shown, the cut surface of the ring-shaped sealing member 133a attached to the sheath 13a parallel to the longitudinal direction of the sheath 13a has a triangular shape with the outer peripheral surface of the sheath 13a as the base. In this way, by forming...
no. 3 Embodiment approach
[0062] In the first embodiment described above, the sheath 13 is also pulled out when the electric scalpel 11 and the endoscope 10 are pulled out from the trocars 12b and 12c. On the other hand, the present embodiment is different in that only the electric scalpel 11 and the endoscope 10 are pulled out with the sheath 13 attached to the trocars 12b and 12c. In addition, the overall structure of the surgical system using the sheath 13 is the same as that of the first embodiment.
[0063] Figure 14 It is a schematic diagram illustrating an example of the structure of the sheath 13' according to the third embodiment of the present invention. The sheath 13' is provided with a sheath check valve 139 at the opening of the proximal end in addition to the hole 132 and the sealing member 133 provided in the side surface. When the electric scalpel 11 and the endoscope 10 pass through the hollow area inside the sheath 13', the sheath check valve 139 seals the inner periphery of the sh...
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