TREATMENT INSTRUMENT
First Claim
Patent Images
1. A treatment instrument in which an operation of an end effector provided on a distal end side is operated by an operation unit provided on a proximal end side, the treatment instrument comprising:
- a grip provided in the operation unit, including a first surface and a second surface provided back to back, and configured to be held between a palm and a thumb of a user when held by the user; and
a handle provided in the operation unit on a distal end side of the grip and configured to move on a reference surface to the distal end side and the proximal end side relative to the grip, the reference surface being an imaginary plane between the first surface and the second surface,wherein at least one of the first surface and the second surface is provided with a protrusion having a surface which is brought into contact with the thumb and which receives a force with which the thumb pushes the grip to the proximal end side.
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Accused Products
Abstract
A treatment instrument includes a grip and a handle. The grip is provided in an operation unit. The grip includes a first surface and a second surface provided back to back. The handle provided in the operation unit on a distal end side of the grip. The handle moves to the distal end side and the proximal end side relative to the grip. At least one of the first surface and the second surface is provided with a protrusion.
12 Citations
7 Claims
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1. A treatment instrument in which an operation of an end effector provided on a distal end side is operated by an operation unit provided on a proximal end side, the treatment instrument comprising:
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a grip provided in the operation unit, including a first surface and a second surface provided back to back, and configured to be held between a palm and a thumb of a user when held by the user; and a handle provided in the operation unit on a distal end side of the grip and configured to move on a reference surface to the distal end side and the proximal end side relative to the grip, the reference surface being an imaginary plane between the first surface and the second surface, wherein at least one of the first surface and the second surface is provided with a protrusion having a surface which is brought into contact with the thumb and which receives a force with which the thumb pushes the grip to the proximal end side. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A treatment instrument comprising:
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a grip configured to be held between a palm and a thumb of a user when held by the user; and a handle including an opening in which at least one of an index finger, a middle finger, a ring finger and a little finger of the user is inserted when the handle is held by the user, and configured to move relative to the grip by bending and stretching of the finger inserted in the opening, wherein the grip is provided with a protrusion having a surface which is brought into contact with the thumb from a tip and a first joint of the thumb and which receives a force with which the thumb pushes the grip in a direction opposite to a direction in which the handle moves by the stretching of the finger.
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Specification