| 摘要 |
A gripping unit includes a supporting section in which at least its entire surface is made of an insulating material, and a swing section swingable about a swing axis relative to the supporting section. The swing section includes a jaw-side facing surface opposed to a treatment section, and a jaw-side electrode section functioning as an electrode when high-frequency energy is transmitted. The support member covers the swing section from a distal direction, both of width directions, and an open direction of the jaw, and the swing section is externally exposed only on the jaw-side facing surface. |
| 主权项 |
1. A gripping unit which, relative to a probe extended along a longitudinal axis, is extended along an extension axis from a proximal direction toward a distal direction, and which is openably and closably provided perpepindicular to the extension axis, the gripping unit comprising:
a supporting section which constitutes a part of the gripping unit, and in which at least an entire surface thereof is made of an insulating material, the supporting section including a receiving surface which is provided on an inner surface not externally exposed and which faces a close direction relative to the probe of the gripping unit, and a supporting wall which is projected from the receiving surface toward the close direction of the gripping unit; a swing section swingably provided about a swing axis relative to the supporting section, wherein the swing axis is an axis perpendicular to the extension axis and the close direction, the swing section including a jaw-side facing surface opposed to the probe, an abutting surface opposed to the receiving surface, and a side surface extended between the jaw-side facing surface and the abutting surface, the jaw-side facing surface including a jaw-side electrode plane which gives a high-frequency current to a treated target gripped between the jaw-side facing surface and the probe when high-frequency energy is transmitted, and an edge forming plane which forms an end of the jaw-side facing surface in width directions parallel to the swing axis; and a coupling member which swingably couples the swing section with the supporting section and which, when the receiving surface is in parallel with the extension axis, locates a projection end on an open direction side relative to the probe of the gripping unit with respect to a virtual plane which is an extension of the edge forming plane toward an outer side in the width directions, wherein the projection edge is a distal end of a part projected in the supporting wall from the receiving surface toward the close direction with respect to the side surface. |
