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US 12,751,716 B2Granted
Medical stapler and suturing method
AssigneeOlympus Corporation
InventorsTakashi Nakamura, Keita Ozawa, Chisato Karasawa
Life of this patent
Estimating the term…
Abstract
A medical stapler includes a stapling head having a staple ejection portion and having a length in one direction, an anvil openably and closably coupled to the stapling head by a rotation shaft and having a length in one direction, a staple receiving portion provided in the anvil and provided at a position facing the staple ejection portion when the stapling head and the anvil are in a closed state, and a first guide portion configured to be displaced to a protruding orientation or a retracted orientation. In the protruding orientation, the first guide portion is capable of lifting a treatment tool.
Claims17
A medical stapler comprising:
- a stapling head including a staple ejection portion, the stapling head having a length in one direction;
- an anvil openably and closably coupled to the stapling head by a rotation shaft, the anvil having a length in one direction;
- a staple receiving portion provided in the anvil, the staple receiving portion being provided at a position facing the staple ejection portion when the stapling head and the anvil are in a closed state;
- and
- a first guide portion configured to be displaced to a protruding orientation or a retracted orientation, wherein
- in the protruding orientation, the first guide portion protrudes in a direction in which the anvil opens with respect to the stapling head when the anvil is in a closed state with respect to the stapling head,
- in the retracted orientation, the first guide portion does not protrude in the direction in which the anvil opens with respect to the stapling head when the anvil is in an open state with respect to the stapling head, and
- in the protruding orientation, the first guide portion is capable of lifting a treatment tool.
5 more elements
A suturing method comprising:
- an insertion step of inserting a medical stapler and an endoscope into a body;
- a grasping step of grasping a treatment target inside the body with a treatment tool;
- a retracting step of retracting the treatment tool relative to the medical stapler to draw in the treatment target to an endoscope side;
- a suturing step of ejecting a staple from a stapling head of the medical stapler to suture a circumference of the treatment target;
- a first advancing step of advancing the treatment tool with respect to the medical stapler by causing the treatment tool to protrude from the endoscope;
- a first open-close step of bringing an anvil into an open state with respect to the stapling head at a portion close to the treatment target to place a first guide portion in a retracted orientation;
- a retracting step of retracting the treatment tool relative to the medical stapler to draw in the treatment target to the endoscope side through a visual space;
- a second open-close step of bringing the anvil into a closed state with respect to the stapling head to place the first guide portion in a protruding orientation;
- and
- a second advancing step of advancing the treatment tool until the treatment tool rides on the first guide portion.
7 more elements
A suturing method comprising:
- an insertion step of inserting a medical stapler and an endoscope into a body, wherein the medical stapler includes:
- a stapling head including a staple ejection portion, the stapling head having a length in one direction;
- an anvil openably and closably coupled to the stapling head by a rotation shaft, the anvil having a length in one direction;
- a staple receiving portion provided in the anvil, the staple receiving portion being provided at a position facing the staple ejection portion when the stapling head and the anvil are in a closed state;
- and
- a first guide portion configured to be displaced to a protruding orientation or a retracted orientation, wherein in the protruding orientation, the first guide portion protrudes in a direction in which the anvil opens with respect to the stapling head when the anvil is in a closed state with respect to the stapling head, in the retracted orientation, the first guide portion does not protrude in the direction in which the anvil opens with respect to the stapling head when the anvil is in an open state with respect to the stapling head, and in the protruding orientation, the first guide portion is capable of lifting a treatment tool;
- a grasping step of grasping a treatment target inside the body with a treatment tool;
- a retracting step of retracting the treatment tool relative to the medical stapler to draw in the treatment target to an endoscope side;
- and
- a suturing step of ejecting a staple from a stapling head of the medical stapler to suture a circumference of the treatment target, wherein in the suturing step, a plurality of staples are ejected from the stapling head.
7 more elements
Dependencies are inferred from the claim text.